/*
 * FOOTNOTES - Design System
 * ========================
 *
 * Colors:
 *   --color-primary: Blue accent (#1A56A0)
 *   --color-background: Light blue page bg (#E7F2FF)
 *   --color-error: Error states (#dc3545)
 *
 * Typography:
 *   --font-mono: Space Mono (headings, labels)
 *   --font-sans: Space Grotesk (body, UI)
 *   Font sizes use clamp() for fluid responsive scaling
 *
 * Spacing:
 *   Based on 4px unit: xs(4), sm(8), md(12), lg(16), xl(20), 2xl(24), 3xl(32), 4xl(40)
 *
 * Breakpoints:
 *   Mobile: < 768px
 *   Desktop: >= 768px
 */

/* ===================
   DESIGN TOKENS
   =================== */

:root {
  /* Colors */
  --color-primary: #1A56A0;
  --color-primary-dark: #134178;
  --color-background: #E7F2FF;
  --color-error: #dc3545;
  --color-white: #ffffff;
  --color-black: #000000;
  --color-gray-100: #f0f0f0;
  --color-gray-200: #e0e0e0;
  --color-gray-400: #999;
  --color-gray-600: #666;
  --color-gray-700: #555;
  --color-gray-800: #444;
  --color-gray-900: #333;

  /* Spacing (4px base) */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 16px;
  --spacing-xl: 20px;
  --spacing-2xl: 24px;
  --spacing-3xl: 32px;
  --spacing-4xl: 40px;
  --spacing-5xl: 48px;

  /* Typography */
  --font-mono: 'Space Mono', monospace;
  --font-sans: 'Space Grotesk', sans-serif;

  --font-size-xs: clamp(10px, 0.75vw + 0.75vh, 12px);
  --font-size-sm: clamp(12px, 1vw + 0.5vh, 14px);
  --font-size-base: clamp(14px, 1vw + 0.75vh, 18px);
  --font-size-lg: clamp(16px, 1.25vw + 1vh, 20px);
  --font-size-xl: clamp(20px, 1.5vw + 1.5vh, 28px);
  --font-size-2xl: clamp(24px, 2vw + 2vh, 40px);
  --font-size-3xl: clamp(28px, 2.5vw + 2.5vh, 48px);

  /* Components */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* ===================
   BASE BUTTON STYLES
   =================== */

/* Global button reset for all button elements */
button {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background: none;
  border: none;
  margin: 0;
  padding: 0;
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  color: inherit;
}

button:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Base button reset */
.btn {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: 1.4;
  border: none;
  margin: 0;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  transition: background-color 0.2s ease, color 0.2s ease;
  box-sizing: border-box;
}

.btn:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Primary button (filled) */
.btn-primary {
  padding: var(--spacing-md) var(--spacing-3xl);
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-md);
  font-weight: 600;
}
.btn-primary:hover {
  background-color: var(--color-primary-dark);
}

/* Secondary button (gray) */
.btn-secondary {
  padding: var(--spacing-md) var(--spacing-3xl);
  background-color: var(--color-gray-200);
  color: var(--color-gray-900);
  border-radius: var(--radius-md);
  font-weight: 600;
}
.btn-secondary:hover {
  background-color: var(--color-gray-400);
}

/* Ghost button (icon buttons) */
.btn-ghost {
  padding: var(--spacing-sm);
  background: none;
  color: inherit;
}
.btn-ghost:hover {
  opacity: 0.8;
}

/*
==================
===== HEADER =====
==================
*/

#menu-button {
    border: none;
    background: none;
    display: fixed;
    float: right;
}

#top-header {
    padding: var(--spacing-xl) 8%;
    flex: 0 1 auto;
    z-index: 5;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Shared header styles */
.header-logo {
    font-family: var(--font-mono);
    font-weight: bold;
    font-size: var(--font-size-lg);
    text-decoration: none;
    color: var(--color-black);
    letter-spacing: 1px;
}

.header-icon {
    color: var(--color-black);
    font-size: var(--font-size-xl);
    text-decoration: none;
    padding: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.2s ease;
}

.header-icon:hover {
    opacity: 0.7;
}

/*
===========================
===== HEADER CONTROLS =====
===========================
*/

#header-controls {
    display: none;
    align-items: center;
    gap: var(--spacing-lg);
}

@media (max-width: 768px) {
    #header-controls {
        gap: 0;
    }
}

#header-controls button,
#header-controls a {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    border: none;
    background: none;
    text-decoration: none;
    color: var(--color-white);
    font-size: var(--font-size-xl);
    padding: var(--spacing-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.2s ease;
}

#header-controls button:hover,
#header-controls a:hover {
    opacity: 0.7;
}

/* Discover page: white logo and icons */
#experience-main .header-logo {
    color: var(--color-white);
}

#experience-main .header-icon {
    color: var(--color-white);
}

body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    position: relative;
}

/* Allow scrolling on collection and home pages */
html.collection-page,
html.home-page,
body.collection-body,
body.home-body {
    overflow-y: auto;
    overflow-x: hidden;
    height: auto;
    min-height: 100%;
}

/* Lock scroll when modal is open */
html.modal-open {
    overflow: hidden !important;
}

html.modal-open body {
    overflow: hidden !important;
    /* Prevent iOS Safari overscroll/bounce */
    position: relative;
    touch-action: none;
}

/*
===========================
===== HOME PAGE: HERO =====
===========================
*/

#home-container {
    background-color: var(--color-background);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

#home-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xl) 8%;
}

#home-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0 8%;
    padding-bottom: var(--spacing-4xl);
}

/* Hero Section */
#hero-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 700px;
    margin-bottom: var(--spacing-3xl);
}

#hero-headline {
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: clamp(28px, 5vw, 48px);
    line-height: 1.2;
    color: var(--color-black);
    margin: 0 0 var(--spacing-2xl);
}

#hero-subheadline {
    font-family: var(--font-sans);
    font-size: clamp(16px, 2.5vw, 20px);
    line-height: 1.6;
    color: var(--color-gray-700);
    margin: 0 0 var(--spacing-3xl);
    max-width: 560px;
}

.hero-cta {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    display: inline-block;
    padding: var(--spacing-lg) var(--spacing-4xl);
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: var(--font-size-lg);
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.hero-cta:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
}

.hero-cta:active {
    transform: translateY(0);
}

/* Learn More Toggle */
#learn-more-toggle {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) 0;
    background: none;
    border: none;
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    color: var(--color-gray-600);
    cursor: pointer;
    transition: color 0.2s ease;
}

#learn-more-toggle:hover {
    color: var(--color-primary);
}

#learn-more-toggle:focus {
    outline: none;
}

#learn-more-toggle:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 4px;
}

#learn-more-text {
    text-decoration: underline;
    text-underline-offset: 3px;
}

#learn-more-icon {
    font-size: var(--font-size-sm);
    transition: transform 0.3s ease;
}

#learn-more-icon.rotated {
    transform: rotate(180deg);
}

/* Learn More Section */
#learn-more-section {
    max-width: 700px;
    width: 100%;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, margin-top 0.4s ease, opacity 0.2s ease;
    margin-top: 0;
    opacity: 0;
}

#learn-more-section.expanded {
    max-height: 600px;
    margin-top: var(--spacing-3xl);
    opacity: 1;
    transition: max-height 0.4s ease, margin-top 0.4s ease, opacity 0.3s ease 0.1s;
}

#learn-more-content {
    padding: var(--spacing-2xl);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.learn-more-block {
    margin-bottom: var(--spacing-2xl);
}

.learn-more-block:last-child {
    margin-bottom: 0;
}

.learn-more-block p {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--color-gray-800);
    margin: 0 0 var(--spacing-md);
}

.learn-more-block p:last-child {
    margin-bottom: 0;
}

.learn-more-block strong {
    color: var(--color-black);
}

/* Mobile adjustments for headers and home page */
@media (max-width: 768px) {
    #top-header,
    #home-header {
        padding: var(--spacing-xl) 6%;
    }

    #home-main {
        padding: 0 6%;
        padding-bottom: var(--spacing-3xl);
    }

    #hero-section {
        margin-bottom: var(--spacing-2xl);
    }

    #hero-headline {
        font-size: clamp(24px, 7vw, 32px);
    }

    #hero-subheadline {
        font-size: var(--font-size-base);
    }

    .hero-cta {
        padding: var(--spacing-md) var(--spacing-3xl);
        font-size: var(--font-size-base);
    }

    #learn-more-toggle {
        font-size: var(--font-size-sm);
    }

    #learn-more-content {
        padding: var(--spacing-xl);
    }

    .learn-more-block p {
        font-size: var(--font-size-sm);
    }
}

/* Screen reader only - visually hidden but accessible */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/*
===========================
===== EXPERIENCE PAGE =====
===========================
*/

#experience-main {
    padding-left: 8vw;
    padding-right: 8vw;
    display: flex;
    flex-flow: column;
    height: 100%;
}

#experience-main #top-header {
    /* Layered gradients: soft center fade + darker side vignettes */
    background:
        /* Left corner vignette */
        radial-gradient(ellipse 80% 120% at 0% 0%, rgba(0, 0, 0, 0.6) 0%, transparent 60%),
        /* Right corner vignette */
        radial-gradient(ellipse 80% 120% at 100% 0%, rgba(0, 0, 0, 0.6) 0%, transparent 60%),
        /* Soft center top-to-bottom fade */
        linear-gradient(to bottom, rgba(0, 0, 0, 0.45) 0%, rgba(0, 0, 0, 0.2) 50%, transparent 100%);
    /* Negative margins to break out of parent padding for full-bleed effect */
    margin-left: -8vw;
    margin-right: -8vw;
    padding: var(--spacing-xl) 8vw var(--spacing-3xl);
    /* Three-column grid for logo | progress | controls */
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
}

#experience-main .header-logo {
    justify-self: start;
}

#experience-main #header-progress {
    justify-self: center;
}

#experience-main #header-controls {
    justify-self: end;
}

/* Mobile: Logo left, progress + controls grouped on right */
@media (max-width: 768px) {
    #experience-main {
        padding-left: 6vw;
        padding-right: 6vw;
    }

    #experience-main #top-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: var(--spacing-sm);
        margin-left: -6vw;
        margin-right: -6vw;
        padding: var(--spacing-xl) 6vw;
    }

    #experience-main .header-logo {
        flex: 1;
    }

    #experience-main #header-progress {
        flex: none;
    }

    #experience-main #header-controls {
        flex: none;
    }
}

#experience-main #header-controls button,
#experience-main #header-controls a {
    color: var(--color-white);
    font-size: var(--font-size-xl);
}

#experience-body {
    background-color: var(--color-black);
}

#get-started {
    background-color: var(--color-white);
    width: 100%;
    max-width: 500px;
    text-align: center;
    border-radius: var(--spacing-4xl);
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 4;
    padding: var(--spacing-3xl);
    box-sizing: border-box;
}

@media (max-width: 768px) {
    #get-started {
        width: 85%;
    }
}

#inner-starter-text {
    margin: 0;
}

#inner-starter-text h1 {
    margin-top: 0;
}

#grant-access-btn {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    display: inline-block;
    margin-top: var(--spacing-xl);
    padding: var(--spacing-md) var(--spacing-3xl);
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

#grant-access-btn:hover {
    background-color: var(--color-primary-dark);
}

/*
==================
===== VIDEO ======
==================
*/

#video {
    left: 0;
    top: 0;
    position: absolute;
    width: 100vw;
    height: 100vh;
    object-fit: cover;
    display: none;
}

#video.mirrored,
#canvas.mirrored,
#camera-transition-canvas.mirrored {
    transform: scaleX(-1);
}

#camera-transition-canvas {
    position: fixed;
    left: 0;
    top: 0;
    width: 100vw;
    height: 100vh;
    z-index: 5; /* Above video and bounding box canvas, below UI */
    display: none;
    pointer-events: none;
}

/* Dark overlay for orientation change transition */
#orientation-transition-overlay {
    position: fixed;
    left: 0;
    top: 0;
    width: 100vw;
    height: 100vh;
    background: black;
    z-index: 4; /* Below transition canvas, above video */
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease-out;
}

#orientation-transition-overlay.fade-in {
    opacity: 1;
}

#canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    display: none;
}

/*
=======================
===== LOADING =========
=======================
*/

#loading-spinner {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 20;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xl);
}

#loading-spinner .spinner {
    width: var(--spacing-5xl);
    height: var(--spacing-5xl);
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid var(--color-background);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

#loading-text {
    color: var(--color-background);
    font-family: var(--font-sans);
    font-size: var(--font-size-lg);
    margin: 0;
}

#loading-progress {
    width: 200px;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    overflow: hidden;
}

#loading-progress-bar {
    height: 100%;
    width: 0%;
    background: var(--color-background);
    border-radius: 2px;
    transition: width 0.3s ease;
}

/*
====================
===== TOAST ========
====================
*/

.toast-notification {
    position: fixed;
    top: 110px;
    left: 50%;
    transform: translateX(-50%) translateY(-100px);
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-md) var(--spacing-2xl);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    z-index: 1000;
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    box-shadow: var(--shadow-md);
    max-width: 90%;
    text-align: center;
}

.toast-notification.visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

@media (max-width: 768px) {
    .toast-notification {
        top: 100px;
        max-width: 95%;
        min-width: 180px;
    }
}

/*
========================
===== ERROR BANNER =====
========================
*/

#error-banner {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-error);
    color: var(--color-white);
    padding: var(--spacing-md) var(--spacing-xl);
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    z-index: 1001;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transform: translateY(-100%);
    transition: transform 0.3s ease;
}

#error-banner.visible {
    display: flex;
    transform: translateY(0);
}

#error-banner-message {
    flex: 1;
}

#error-banner-actions {
    display: flex;
    gap: var(--spacing-sm);
}

#error-banner-actions button {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: var(--color-white);
    padding: 6px var(--spacing-md);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
}

#error-banner-actions button:hover {
    background: rgba(255, 255, 255, 0.3);
}

#error-banner-close {
    background: none !important;
    padding: 6px;
}

/*
===========================
===== IMAGE SKELETON ======
===========================
*/

.image-skeleton {
    background: linear-gradient(90deg, var(--color-gray-200) 25%, var(--color-gray-100) 50%, var(--color-gray-200) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    /* Hide alt text while loading */
    color: transparent;
    font-size: 0;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.image-loaded {
    animation: none;
    background: none;
    color: inherit;
    font-size: inherit;
}

.image-error {
    animation: none;
    background: var(--color-gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-600);
    font-size: var(--font-size-xs);
    text-align: center;
}

/* Modal image error state */
#story-modal-image.image-error {
    width: 100%;
    height: 250px;
    min-height: 250px;
    border-radius: var(--radius-md);
}

/* Collection card image error state */
.collection-card-image.image-error {
    width: 100%;
    height: 200px;
    min-height: 200px;
}

/* Collection card image skeleton - match the card image dimensions */
.collection-card-image.image-skeleton {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

/* Modal image skeleton - match the modal image dimensions */
#story-modal-image.image-skeleton {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: var(--radius-md);
}


/*
==========================
===== PROGRESS COUNTER ===
==========================
*/

/* Header progress (discover page) */
#header-progress {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

#header-progress-text {
    font-family: var(--font-mono);
    font-weight: bold;
    font-size: var(--font-size-sm);
    color: var(--color-white);
}

#header-progress-dots {
    display: flex;
    gap: 4px;
    align-items: center;
}

.progress-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transition: background 0.3s ease;
}

.progress-dot.filled {
    background: var(--color-white);
}

/* Mobile: hide dots, show only text */
@media (max-width: 768px) {
    #header-progress-dots,
    #experience-main #header-progress-dots {
        display: none !important;
    }
}

/* Floating camera swap button */
#video-swap-button {
    position: fixed;
    bottom: calc(var(--spacing-xl) + env(safe-area-inset-bottom, 0px));
    right: var(--spacing-xl);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.6);
    color: var(--color-white);
    border: none;
    cursor: pointer;
    z-index: 10;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    transition: background 0.2s ease, transform 0.2s ease;
}

#video-swap-button:hover {
    background: rgba(0, 0, 0, 0.8);
}

#video-swap-button:active {
    transform: scale(0.95);
}

/*
================================
===== CANVAS & ANNOTATIONS =====
================================
*/

#object-stories-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 3;
}

.object-button {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    border-radius: 50%;
    padding: 30px;
    margin: 0;
    border: none;
    background-image: radial-gradient(#D5C1FF 5%, var(--color-background) 45%, var(--color-background) 50%);
    transform: translate(-50%, -50%);
    cursor: pointer;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.85;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.12);
        opacity: 1;
    }
}

/*
=========================
===== STORY CARD ========
=========================
*/

#story-container {
    width: 70%;
    max-width: 1000px;
    position: fixed;
    left: 50%;
    bottom: 7%;
    z-index: 4;
    /* Animation: hidden by default */
    opacity: 0;
    pointer-events: none;
    transform: translate(-50%, 20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

#story-container.story-open {
    opacity: 1;
    pointer-events: none;
    transform: translate(-50%, 0);
}

#story-container.story-open #inner-description {
    pointer-events: auto;
}

/*
==============================
===== STORY CAROUSEL =========
==============================
*/

#story-carousel {
    overflow: hidden;
    touch-action: pan-y pinch-zoom;
    flex: 1;
    min-height: 0;
    width: 100%;
    position: relative;
}

#carousel-track {
    display: flex;
    transition: transform 0.3s ease-out;
    height: 100%;
    width: 100%;
}

.carousel-slide {
    flex: 0 0 100%;
    min-width: 100%;
    max-width: 100%;
    width: 100%;
    display: flex;
    flex-direction: row;
    gap: var(--spacing-md);
    box-sizing: border-box;
}

/* Slide content layout - mirrors original flex-container */
.carousel-slide .slide-image-wrapper {
    flex: 0 1 25%;
    overflow: hidden;
    position: relative;
    box-sizing: border-box;
    min-height: 180px;
}

.carousel-slide .slide-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
}

.carousel-slide .slide-person-name {
    flex: 0 1 25%;
    font-family: var(--font-mono);
    font-weight: bold;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.carousel-slide .slide-description {
    flex: 0 1 50%;
    font-family: var(--font-sans);
    font-weight: normal;
    line-height: 1.6;
    margin: 0;
}

/*
==============================
===== NO-IMAGE HANDLING ======
==============================
Global styles for slides without images (person has no photo or image failed to load).
These apply to both mobile and desktop.
*/

/* Discover: Hide image wrapper when no image */
.carousel-slide.no-image .slide-image-wrapper {
    display: none !important;
}

/* Discover: Description fills available space */
.carousel-slide.no-image .slide-description-container {
    flex: 1;
}

/* Library: Hide image wrapper when no image */
.library-slide.no-image .library-slide-image-wrapper {
    display: none !important;
}

/* Library: Description fills available space */
.library-slide.no-image .library-slide-description-container {
    flex: 1;
}

/* Bottom navigation bar (C3) */
#carousel-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xl);
    padding: var(--spacing-lg) 0 0;
    flex-shrink: 0;
}

#carousel-prev,
#carousel-next {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--color-gray-200);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    color: var(--color-gray-800);
    transition: background-color 0.2s ease, transform 0.2s ease;
}

#carousel-prev:hover,
#carousel-next:hover {
    background: var(--color-gray-400);
}

#carousel-prev:active,
#carousel-next:active {
    transform: scale(0.95);
}

#carousel-prev:disabled,
#carousel-next:disabled {
    visibility: hidden; /* Hide at boundaries instead of showing disabled */
}

#carousel-dots {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-gray-400);
    border: none;
    padding: 0;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.carousel-dot.active {
    background: var(--color-primary);
    transform: scale(1.25);
}

.carousel-dot:hover:not(.active) {
    background: var(--color-gray-600);
}

/* Hide nav when single story */
#carousel-nav.single-story {
    display: none;
}

/*
==============================
===== TIERED CELEBRATIONS ====
==============================
*/

/* Big celebration - first story of object (golden glow) */
#story-container.new-unlock #object-story {
    animation: unlock-glow-big 2s ease-out;
}

@keyframes unlock-glow-big {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 200, 50, 0.9),
                    0 4px 20px rgba(0, 0, 0, 0.15);
    }
    20% {
        box-shadow: 0 0 40px 15px rgba(255, 200, 50, 0.7),
                    0 4px 20px rgba(0, 0, 0, 0.15);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(255, 200, 50, 0),
                    0 4px 20px rgba(0, 0, 0, 0.15);
    }
}

#object-story {
    background-color: var(--color-white);
    padding: var(--spacing-xl) 28px var(--spacing-3xl);
    border-radius: var(--radius-xl);
    display: flex;
    flex-direction: column;
}

#story-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

#story-header-buttons {
    display: flex;
    gap: 0;
}

/* Share button hidden for now */
#share-story-button {
    display: none !important;
}

#share-story-button,
#expand-story-button,
#close-description-button {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    color: var(--color-gray-600);
    font-size: var(--font-size-base);
    line-height: 1;
    transition: color 0.2s ease;
}

#share-story-button i,
#expand-story-button i,
#close-description-button i {
    font-size: var(--font-size-base);
}

#share-story-button:hover,
#expand-story-button:hover,
#close-description-button:hover {
    color: var(--color-black);
}

/* Expand button - hidden on desktop, shown on mobile */
@media (min-width: 769px) {
    #expand-story-button {
        display: none !important;
    }
}

@media (max-width: 768px) {
    #expand-story-button {
        display: flex !important;
        align-items: center;
        justify-content: center;
    }
}

/* Story container: First two columns each take up 25%, third column takes up the rest of the 50% */
.flex-container {
    display: flex;
    flex-direction: row;
    box-sizing: border-box;
}

.flex-item {
    flex: 1;
    padding: 0;
}

/* Media query for smaller screens */
@media screen and (max-width: 768px) {
    .flex-container {
        flex-direction: column;
    }
}

/* Media query for larger screens */
@media screen and (min-width: 769px) {
    .flex-container {
        gap: var(--spacing-md);
    }

    .flex-item {
        flex: 0 1 50%;
    }

    .flex-item:nth-child(1),
    .flex-item:nth-child(2) {
        flex: 0 1 25%;
    }
}

#object-name {
    font-family: var(--font-mono);
    font-weight: bold;
    font-size: var(--font-size-xs);
    color: var(--color-primary);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin: 0;
}

#person-name {
    font-family: var(--font-mono);
    font-weight: bold;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

#person-description {
    font-family: var(--font-sans);
    font-weight: normal;
}

#image-wrapper {
    overflow: hidden;
    position: relative;
    box-sizing: border-box;
    min-height: 180px;
}

#person-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
}

#person-image.image-skeleton {
    background: linear-gradient(90deg, var(--color-gray-200) 25%, var(--color-gray-100) 50%, var(--color-gray-200) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    color: transparent;
}

p, button {
    font-family: var(--font-sans);
    font-weight: normal;
}

h1 {
    font-family: var(--font-sans);
    font-weight: bold;
}

#help-message {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--color-white);
    color: var(--color-black);
    padding: var(--spacing-xl);
    padding-top: var(--spacing-2xl);
    border: 1px solid var(--color-black);
    display: none;
    flex-direction: column;
    gap: 0;
    width: calc(100% - var(--spacing-xl) * 2);
    max-width: 360px;
    z-index: 100;
    pointer-events: auto;
    font-family: var(--font-sans);
    box-sizing: border-box;
}

/* Close button */
.help-message-close {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-gray-500);
    font-size: var(--font-size-base);
    padding: var(--spacing-xs);
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.help-message-close:hover {
    color: var(--color-gray-900);
}

/* Title */
.help-message-title {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-black);
    margin: 0 0 var(--spacing-sm) 0;
}

/* Body text */
.help-message-body {
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    color: var(--color-gray-700);
    margin: 0 0 var(--spacing-md) 0;
}

.help-message-body:last-child {
    margin-bottom: 0;
}

/* Divider */
.help-message-divider {
    height: 1px;
    background-color: var(--color-gray-200);
    margin: var(--spacing-sm) 0 var(--spacing-md) 0;
}

/* Inline links */
.help-message-link {
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
}

.help-message-link:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

.help-message-link i {
    font-size: 10px;
}

/* Desktop: slightly wider */
@media screen and (min-width: 600px) {
    #help-message {
        max-width: 400px;
    }
}

#info-help-overview {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    background-color: var(--color-white);
    color: var(--color-black);
    border: 1px solid var(--color-black);
    z-index: 200;
    width: 550px;
    max-height: 85vh;
    max-width: 90vw;
    font-family: var(--font-sans);
    box-sizing: border-box;
    /* Flexbox layout for fixed header/footer */
    display: flex;
    flex-direction: column;
    /* Transition for smooth open/close */
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s ease-out, transform 0.25s ease-out, visibility 0.25s;
}

#info-help-overview.help-modal-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translate(-50%, -50%) scale(1);
}

/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    #info-help-overview {
        transition: opacity 0.15s ease-out, visibility 0.15s;
    }
    #info-help-overview.help-modal-visible {
        transform: translate(-50%, -50%);
    }
}

/* Fixed header with centered title and close button */
#help-overview-header {
    flex-shrink: 0;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-xl);
    border-bottom: 1px solid var(--color-gray-200);
}

#help-overview-title {
    font-family: var(--font-sans);
    font-size: var(--font-size-lg);
    font-weight: 600;
    letter-spacing: 0.05em;
    margin: 0;
    color: var(--color-black);
}

/* Scrollable content area */
#info-help-overview-text {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg) var(--spacing-xl);
}

/* Fixed footer */
#help-overview-footer {
    flex-shrink: 0;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-top: 1px solid var(--color-gray-200);
    background-color: var(--color-white);
}

/* Footer primary button (works for both button and anchor) */
.help-footer-primary {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: 4px;
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    transition: background-color 0.2s ease;
    text-decoration: none;
    box-sizing: border-box;
}

.help-footer-primary:hover {
    background-color: var(--color-primary-dark, #1a4d8c);
    color: var(--color-white);
    text-decoration: none;
}

/* Footer secondary text */
.help-footer-secondary {
    text-align: center;
    margin-top: var(--spacing-md);
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.help-footer-secondary a {
    color: var(--color-primary);
    text-decoration: none;
    font-size: var(--font-size-sm);
}

.help-footer-secondary a:hover {
    text-decoration: underline;
}

/* Mobile: wider help dialog for better readability */
@media screen and (max-width: 768px) {
    #info-help-overview {
        width: 90% !important;
        max-width: none !important;
        min-width: 0;
    }

    #info-help-overview-text {
        padding: var(--spacing-md) var(--spacing-lg);
    }

    #help-overview-footer {
        padding: var(--spacing-md) var(--spacing-lg);
    }
}

/* Help overview sections */
.help-section {
    margin-bottom: var(--spacing-lg);
}

.help-section:last-of-type {
    margin-bottom: var(--spacing-xl);
}

.help-section-title {
    font-family: var(--font-mono);
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray-600);
}

.help-section p {
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray-800);
}

.help-section p:last-child {
    margin-bottom: 0;
}

/* Help tips section (unfound categories) */
.help-tips {
    background-color: var(--color-background);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    border-left: 3px solid var(--color-primary);
}

.help-tips.help-complete {
    border-left-color: var(--color-success, #22c55e);
}

.help-tip-text {
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    margin: 0;
}

/* Inline link within help content (e.g., "Suggest a story") */
.help-inline-link {
    color: var(--color-primary);
    text-decoration: none;
    font-size: inherit;
    white-space: nowrap;
}

.help-inline-link:hover {
    text-decoration: underline;
}

.help-inline-link i {
    font-size: 0.75em;
    margin-left: 2px;
}

/* Close button in header (absolute positioned for centered title) */
#close-help-button {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    position: absolute;
    right: var(--spacing-lg);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-gray-900);
    font-size: var(--font-size-lg);
    padding: var(--spacing-xs);
    display: flex;
    align-items: center;
    justify-content: center;
}

#close-help-button:hover {
    color: var(--color-gray-600);
}

#help-overview-background-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 150;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease-out, visibility 0.2s;
}

#help-overview-background-overlay.overlay-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    #help-overview-background-overlay {
        transition: opacity 0.1s ease-out, visibility 0.1s;
    }
}

.dialog-visible {
  visibility: visible;
  pointer-events: auto;
}

/* Global font sizes */
html {
    font-size: 16px;
}

h1 {
    font-family: var(--font-sans);
    font-weight: bold;
    font-size: var(--font-size-3xl);
}

p, a {
    font-size: var(--font-size-base);
}

button {
    font-size: var(--font-size-sm);
}

/* Media queries for mobile layout adjustments */
@media screen and (max-width: 768px) {
    #story-container {
        width: 100%;
        bottom: 0;
        left: 0;
        height: 48%; /* Slightly reduced from 50% - no action button */
        max-height: 75%;
        transform: translateY(100%);
        transition: opacity 0.3s ease, transform 0.3s ease;
    }

    #story-container.story-open {
        transform: translateY(0);
        pointer-events: none;
    }

    #story-container.story-open #inner-description {
        pointer-events: auto;
    }

    /* Fullscreen mode on mobile ONLY - covers site header but keeps story controls visible */
    #story-container.story-fullscreen {
        position: fixed !important;
        width: 100vw !important;
        height: 100vh !important;
        max-height: 100vh !important;
        top: 0 !important;
        bottom: 0 !important;
        left: 0 !important;
        right: 0 !important;
        transform: translateY(0) !important;
        z-index: 9999 !important;
        background: var(--color-white);
        transition: all 0.3s ease;
    }

    #story-container.story-fullscreen #object-story {
        border-radius: 0;
        height: 100vh;
        max-height: 100vh;
        padding-top: env(safe-area-inset-top, 16px);
        display: flex;
        flex-direction: column;
    }

    #story-container.story-fullscreen #inner-description {
        flex: 1;
        min-height: 0;
        height: auto;
        max-height: none;
        display: flex;
        flex-direction: column;
    }

    #story-container.story-fullscreen #story-carousel {
        flex: 1;
        min-height: 0;
    }

    /* Story header stays accessible in fullscreen */
    #story-container.story-fullscreen #story-header {
        position: sticky;
        top: 0;
        background: var(--color-white);
        z-index: 10;
        padding-top: var(--spacing-md);
        padding-bottom: var(--spacing-md);
        margin-bottom: var(--spacing-sm);
    }

    /* Ensure mobile bottom nav stays above fullscreen content */
    #story-container.story-fullscreen ~ .mobile-bottom-nav {
        z-index: 10000;
    }
}

/* Desktop - completely ignore fullscreen class */
@media (min-width: 769px) {
    /* Remove any fullscreen-related classes on desktop */
    #story-container.story-fullscreen,
    #story-container.story-fullscreen.story-open {
        /* Use same exact styles as non-fullscreen desktop */
        width: 60%;
        bottom: 10%;
        left: 50%;
        height: auto;
        max-height: 80%;
        position: fixed;
        transform: translate(-50%, 0);
        z-index: 4;
        background: transparent;
        top: auto;
        right: auto;
    }

    #story-container.story-fullscreen #object-story {
        border-radius: var(--radius-xl);
        height: auto;
        max-height: none;
        padding: var(--spacing-xl) 28px var(--spacing-3xl);
    }

    #story-container.story-fullscreen #inner-description {
        height: auto;
        max-height: none;
    }

    #story-container.story-fullscreen #story-header {
        position: relative;
        padding-top: 0;
        padding-bottom: 0;
        margin-bottom: var(--spacing-md);
        border-bottom: none;
    }
}

/* Mobile-only story container styles */
@media screen and (max-width: 768px) {
    #inner-description {
        height: 100%;
        width: 100%;
    }

    #object-story {
        border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        height: 100%;
        display: flex;
        flex-direction: column;
    }

    #story-header {
        flex-shrink: 0;
    }

    #carousel-nav {
        flex-shrink: 0;
    }

    .flex-container {
        flex-direction: column;
        align-items: flex-start;
        padding: 0;
        margin: 0;
    }

    .flex-item {
        width: 100%;
        flex: 0 0 auto;
        padding: 0;
    }

    .flex-item:first-child {
        order: 3;
    }

    .flex-item:nth-child(2) {
        order: 1;
    }

    .flex-item:nth-child(3) {
        order: 2;
    }

    #image-wrapper {
        overflow: visible;
        min-height: auto;
        height: auto;
        position: static;
        margin-top: var(--spacing-lg);
    }

    .flex-item #person-image {
        width: 100%;
        height: auto;
        object-fit: contain;
        position: static;
    }

    .flex-item #person-image.image-skeleton {
        min-height: 200px;
    }

    /* Carousel mobile styles */
    #story-carousel {
        flex: 1;
        min-height: 0;
        overflow: hidden;
        width: 100%;
        position: relative;
    }

    #carousel-track {
        height: 100%;
    }

    .carousel-slide {
        flex-direction: column;
        align-items: flex-start;
        padding: 0;
        height: 100%;
        width: 100%;
        max-width: 100%;
        overflow-y: auto;
        overflow-x: hidden;
        -webkit-overflow-scrolling: touch;
        box-sizing: border-box;
    }

    .carousel-slide .slide-image-wrapper {
        flex: 0 0 auto;
        width: 100%;
        overflow: visible;
        min-height: auto;
        height: auto;
        position: static;
        order: 3;
        margin-top: var(--spacing-lg);
        margin-bottom: 0; /* Padding handled by parent */
    }

    .carousel-slide .slide-image {
        width: 100%;
        height: auto;
        object-fit: contain;
        position: static;
    }

    .carousel-slide .slide-person-name {
        flex: 0 0 auto;
        width: 100%;
        order: 1;
        margin: 0;
    }

    .carousel-slide .slide-description {
        flex: 0 0 auto;
        width: 100%;
        order: 2;
        margin: 0;
        padding: 0;
    }

    .carousel-slide .slide-description-container {
        width: 100%;
        margin: 0;
        padding: 0;
        padding-bottom: 0; /* Let parent handle spacing */
    }



    #carousel-nav {
        padding: var(--spacing-md) 0;
        gap: var(--spacing-lg);
    }

    #carousel-prev,
    #carousel-next {
        width: 40px;
        height: 40px;
    }

    /* When story is fullscreen, elevate the overlay to appear above header */
    #object-stories-overlay.story-fullscreen-active {
        z-index: 10 !important;
    }
}

/*
============================
===== COLLECTION PAGE ======
============================
*/

#collection-container {
    background-color: var(--color-background);
    min-height: 100vh;
    overflow-y: auto;
}

#collection-content {
    padding: 0 8% var(--spacing-4xl);
}

#collection-content h1 {
    font-family: var(--font-mono);
    margin-bottom: var(--spacing-xs);
}

#collection-summary {
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    margin-top: 0;
    margin-bottom: var(--spacing-2xl);
}

#collection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

#collection-footer {
    margin-top: var(--spacing-3xl);
    text-align: center;
}

#collection-footer p {
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-xs);
}

#collection-footer a {
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

#collection-footer a:hover {
    text-decoration: underline;
}

#collection-footer a i {
    font-size: 0.75em;
}

.collection-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease;
}

.collection-card:hover {
    transform: translateY(-2px);
}

.collection-card:focus {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

.collection-card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.collection-card-body {
    padding: var(--spacing-lg) var(--spacing-xl) var(--spacing-xl);
}

.collection-card-object {
    font-family: var(--font-mono);
    font-weight: bold;
    font-size: var(--font-size-xs);
    color: var(--color-primary);
    margin: 0 0 var(--spacing-xs);
    letter-spacing: 1px;
}

.collection-card-person {
    font-family: var(--font-mono);
    font-weight: bold;
    font-size: var(--font-size-lg);
    margin: 0 0 var(--spacing-sm);
}

.collection-card-desc {
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    color: var(--color-gray-800);
    margin: 0;
    line-height: 1.5;
}

#collection-empty {
    text-align: center;
    padding: 60px var(--spacing-xl);
}

#collection-empty p {
    font-family: var(--font-sans);
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-xl);
}

/*
==============================
===== COLLECTION MODAL =======
==============================
*/

#story-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 100;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

#story-modal-overlay.visible {
    opacity: 1;
    visibility: visible;
}

#story-modal {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    max-width: 500px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    transform: translateY(var(--spacing-xl));
    transition: transform 0.3s ease;
}

#story-modal-overlay.visible #story-modal {
    transform: translateY(0);
}

#story-modal-header {
    display: flex;
    justify-content: flex-end;
    padding: var(--spacing-md) var(--spacing-lg) 0;
    position: sticky;
    top: 0;
    background: var(--color-white);
    z-index: 1;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

#close-modal-button {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background: none;
    border: none;
    font-size: var(--font-size-lg);
    cursor: pointer;
    padding: var(--spacing-sm);
    color: var(--color-gray-900);
}

#close-modal-button:hover {
    color: var(--color-black);
}

#story-modal-content {
    padding: 0 28px var(--spacing-3xl);
}

#story-modal-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

#story-modal-object {
    font-family: var(--font-mono);
    font-weight: bold;
    font-size: var(--font-size-xs);
    color: var(--color-primary);
    margin: 0 0 var(--spacing-xs);
    letter-spacing: 1px;
}

#story-modal-person {
    font-family: var(--font-mono);
    font-weight: bold;
    font-size: var(--font-size-xl);
    margin: 0 0 var(--spacing-md);
}

#story-modal-description {
    font-family: var(--font-sans);
    font-size: var(--font-size-lg);
    color: var(--color-gray-900);
    margin: 0;
    line-height: 1.6;
}

/*
==============================
===== LIBRARY CARDS ==========
==============================
*/

.library-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease;
}

.library-card:hover {
    transform: translateY(-2px);
}

.library-card:focus {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

/* Library card image wrapper */
.library-card-image {
    position: relative;
    overflow: hidden;
}

.library-card-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: filter 0.3s ease;
}

/* Locked card image blur */
.library-card-image--locked {
    overflow: hidden;
}

.library-card-image--blurred {
    filter: blur(20px) brightness(0.8);
    transform: scale(1.1);
}

/* Status badges */
.library-card-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: rgba(0, 0, 0, 0.6);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.library-card--discovered .library-card-badge {
    background: var(--color-primary);
}

.library-card--revealed .library-card-badge {
    background: var(--color-gray-600);
}

.library-card--locked .library-card-badge {
    background: rgba(0, 0, 0, 0.6);
}

/* Library card body */
.library-card-body {
    padding: var(--spacing-lg) var(--spacing-xl) var(--spacing-xl);
}

.library-card-object {
    font-family: var(--font-mono);
    font-weight: bold;
    font-size: var(--font-size-xs);
    color: var(--color-primary);
    margin: 0 0 var(--spacing-xs);
    letter-spacing: 1px;
}

.library-card-person {
    font-family: var(--font-mono);
    font-weight: bold;
    font-size: var(--font-size-lg);
    margin: 0 0 var(--spacing-sm);
}

.library-card-desc {
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    color: var(--color-gray-800);
    margin: 0;
    line-height: 1.5;
}

.library-card-hint {
    color: var(--color-gray-600);
    font-style: italic;
    font-size: var(--font-size-sm);
    margin: 0 0 var(--spacing-sm);
}

.library-card-reveal {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-gray-200);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-family: var(--font-sans);
    color: var(--color-gray-900);
    transition: background-color 0.2s ease;
}

.library-card-reveal:hover {
    background: var(--color-gray-400);
}

/* Locked card opacity */
.library-card--locked {
    opacity: 0.9;
}

/* Mobile adjustments for collection/library page */
@media (max-width: 768px) {
    #collection-content {
        padding-left: 6%;
        padding-right: 6%;
    }
}

/*
==============================
===== CHOICE MODAL ===========
==============================
*/

#choice-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    height: 100dvh; /* Dynamic viewport height for mobile */
    background: rgba(0, 0, 0, 0.6);
    z-index: 100;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

#choice-modal-overlay.visible {
    opacity: 1;
    visibility: visible;
}

#choice-modal {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    max-width: 400px;
    width: 90%;
    padding: var(--spacing-2xl);
    position: relative;
    transform: translateY(var(--spacing-xl));
    transition: transform 0.3s ease;
    text-align: center;
    box-sizing: border-box;
}

#choice-modal-overlay.visible #choice-modal {
    transform: translateY(0);
}

#close-choice-modal-button {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: none;
    border: none;
    font-size: var(--font-size-lg);
    cursor: pointer;
    padding: var(--spacing-sm);
    color: var(--color-gray-900);
}

#close-choice-modal-button:hover {
    color: var(--color-black);
}

#choice-modal-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
    width: 100%;
    box-sizing: border-box;
}

#choice-modal-image-wrapper {
    position: relative;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    overflow: hidden;
}

#choice-modal-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: blur(15px) brightness(0.7);
    transform: scale(1.2);
}

#choice-modal-lock-badge {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.6);
    color: var(--color-white);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
}

#choice-modal-text {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    color: var(--color-gray-800);
    margin: 0;
}

#choice-modal-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    width: 100%;
    box-sizing: border-box;
}

#choice-modal-buttons .btn {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    display: block;
    width: 100%;
    text-align: center;
    text-decoration: none;
    box-sizing: border-box;
    padding: var(--spacing-md) var(--spacing-lg);
}

#choice-modal-buttons .btn-secondary {
    background-color: var(--color-gray-200);
    color: var(--color-gray-900);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: background-color 0.2s ease;
}

#choice-modal-buttons .btn-secondary:hover {
    background-color: var(--color-gray-400);
}

#choice-modal-buttons .btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: background-color 0.2s ease;
}

#choice-modal-buttons .btn-primary:hover {
    background-color: var(--color-primary-dark);
}

/*
==============================
===== LIBRARY CAROUSEL MODAL =
==============================
*/

#carousel-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    height: 100dvh; /* Dynamic viewport height for mobile */
    background: rgba(0, 0, 0, 0.6);
    z-index: 100;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

#carousel-modal-overlay.visible {
    opacity: 1;
    visibility: visible;
}

#carousel-modal {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    max-width: 500px;
    width: 90%;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
    transform: translateY(var(--spacing-xl));
    transition: transform 0.3s ease;
}

#carousel-modal-overlay.visible #carousel-modal {
    transform: translateY(0);
}

#carousel-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--color-gray-200);
    flex-shrink: 0;
}

#carousel-modal-object {
    font-family: var(--font-mono);
    font-weight: bold;
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    letter-spacing: 1px;
    margin: 0;
}

#close-carousel-button {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background: none;
    border: none;
    font-size: var(--font-size-lg);
    cursor: pointer;
    padding: var(--spacing-sm);
    color: var(--color-gray-600);
    transition: color 0.2s ease;
}

#close-carousel-button:hover {
    color: var(--color-black);
}

#carousel-modal-body {
    flex: 1;
    min-height: 0; /* Critical for flex children to shrink */
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

#library-carousel {
    flex: 1;
    min-height: 0; /* Critical for flex children to shrink */
    overflow: hidden;
    touch-action: pan-y pinch-zoom;
    position: relative;
}

#library-carousel-track {
    display: flex;
    transition: transform 0.3s ease-out;
    height: 100%;
}

.library-slide {
    flex: 0 0 100%;
    min-width: 100%;
    height: 100%;
    padding: var(--spacing-xl);
    box-sizing: border-box;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.library-slide-image-wrapper {
    position: relative;
    width: 100%;
    max-width: 300px;
    margin: 0 auto var(--spacing-lg);
}

.library-slide-image {
    width: 100%;
    height: auto;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    border-radius: var(--radius-md);
    display: block;
}

.library-slide-image--blurred {
    filter: blur(20px) brightness(0.7);
}

.library-slide-lock {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.6);
    color: var(--color-white);
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
}

.library-slide-person {
    font-family: var(--font-mono);
    font-weight: bold;
    font-size: var(--font-size-xl);
    margin: 0 0 var(--spacing-md);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.library-slide-description {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    color: var(--color-gray-800);
    line-height: 1.6;
    margin: 0;
}

.library-slide--locked .library-slide-description {
    color: var(--color-gray-600);
    font-style: italic;
    text-align: center;
}

#library-carousel-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xl);
    padding: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-200);
    flex-shrink: 0;
}

#library-carousel-nav.single-story {
    display: none;
}

#library-carousel-prev,
#library-carousel-next {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--color-gray-200);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    color: var(--color-gray-800);
    transition: background-color 0.2s ease;
}

#library-carousel-prev:hover,
#library-carousel-next:hover {
    background: var(--color-gray-400);
}

#library-carousel-prev:disabled,
#library-carousel-next:disabled {
    visibility: hidden; /* Hide at boundaries instead of showing disabled */
}

#library-carousel-dots {
    display: flex;
    gap: var(--spacing-sm);
}

.library-carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-gray-400);
    border: none;
    padding: 0;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.library-carousel-dot.active {
    background: var(--color-primary);
    transform: scale(1.25);
}

/*
==============================
===== OBJECT CARDS ===========
==============================
*/

.object-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg) var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    cursor: pointer;
}

.object-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
}

.object-card:focus {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

.object-card--locked {
    opacity: 0.85;
}

.object-card-header {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    min-width: 0;
}

.object-card-name {
    font-family: var(--font-mono);
    font-weight: bold;
    font-size: var(--font-size-base);
    color: var(--color-primary);
    margin: 0;
    letter-spacing: 1px;
    flex: 1;
    min-width: 0;
    line-height: 1.4;
    overflow-wrap: break-word;
    word-wrap: break-word;
    hyphens: manual;
    -webkit-hyphens: manual;
    -ms-hyphens: manual;
    /* Align text baseline with badge center */
    padding-top: 2px;
}

.object-card-progress {
    font-family: var(--font-mono);
    font-size: var(--font-size-xs);
    color: var(--color-gray-600);
    white-space: nowrap;
    /* Align with badge center */
    padding-top: 6px;
}

.object-card-badge {
    background: var(--color-gray-200);
    color: var(--color-gray-700);
    width: 28px;
    height: 28px;
    min-width: 28px;
    min-height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    flex-shrink: 0;
}

.object-card--unlocked .object-card-badge {
    background: var(--color-primary);
    color: var(--color-white);
}

.object-card-avatars {
    display: flex;
    align-items: center;
    gap: -8px;
    margin: var(--spacing-sm) 0;
    min-height: 40px;
}

.object-card-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--color-white);
    margin-left: -8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.object-card-avatar:first-child {
    margin-left: 0;
}

.object-card-avatar-initials {
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    font-weight: 600;
    background: var(--color-gray-300);
    color: var(--color-gray-700);
}

.object-card-avatar-more {
    font-family: var(--font-mono);
    font-size: var(--font-size-xs);
    color: var(--color-gray-600);
    margin-left: var(--spacing-sm);
}

.object-card-hint {
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    font-style: italic;
    margin: 0 0 var(--spacing-sm);
}

.object-card-reveal {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-gray-200);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-family: var(--font-sans);
    color: var(--color-gray-900);
    transition: background-color 0.2s ease;
}

.object-card-reveal:hover {
    background: var(--color-gray-400);
}

/* Mobile adjustments for object cards */
@media (max-width: 768px) {
    .object-card {
        padding: var(--spacing-md) var(--spacing-lg);
    }

    #carousel-modal {
        max-height: 90vh;
        width: 95%;
    }

    .library-slide {
        padding: var(--spacing-lg);
    }

    #library-carousel-nav {
        gap: var(--spacing-lg);
    }

    #library-carousel-prev,
    #library-carousel-next {
        width: 40px;
        height: 40px;
    }
}

/*
===========================
===== FULL STORY UI =======
===========================
*/

/* Read more button in carousel slides */
.read-more-btn {
    display: block;
    margin: var(--spacing-md) auto 0;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.read-more-btn:hover {
    background: var(--color-primary-dark);
}

.read-more-btn:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Full story content container (for mobile inline expansion) */
.full-story-content {
    display: none;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    font-size: var(--font-size-base);
    color: var(--color-text);
}

.full-story-content.expanded {
    display: block;
    animation: slideDown 0.3s ease-out;
}

.full-story-content p {
    margin-bottom: var(--spacing-md);
    white-space: pre-line;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Side panel for desktop */
.story-side-panel {
    position: fixed;
    right: -450px;
    top: 0;
    width: 450px;
    height: 100vh;
    background: var(--color-white);
    box-shadow: -4px 0 12px rgba(0, 0, 0, 0.15);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    transition: right 0.3s ease-out;
    z-index: 2000;
    display: none; /* Hidden on mobile by default */
}

.story-side-panel.visible {
    right: 0;
}

.close-side-panel {
    position: sticky;
    top: 0;
    right: 0;
    float: right;
    width: 44px;
    height: 44px;
    background: var(--color-white);
    border: none;
    border-radius: 50%;
    margin: var(--spacing-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--color-gray-700);
    transition: background 0.2s, color 0.2s;
    z-index: 10;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.close-side-panel:hover {
    background: var(--color-gray-100);
    color: var(--color-gray-900);
}

.close-side-panel:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.side-panel-content {
    padding: var(--spacing-xl) var(--spacing-lg);
    max-width: 400px;
    margin: 0 auto;
}

.side-panel-content h2 {
    font-family: var(--font-sans);
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.side-panel-content .story-portrait {
    width: 100%;
    max-width: 300px;
    height: auto;
    border-radius: var(--radius-md);
    margin: var(--spacing-lg) auto;
    display: block;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.side-panel-content .full-story-text {
    line-height: 1.8;
    font-size: var(--font-size-base);
    color: var(--color-text);
}

.side-panel-content .full-story-text p {
    margin-bottom: var(--spacing-lg);
    white-space: pre-line;
}

/* Dim the story container when side panel is open */
.story-container-dimmed {
    opacity: 0.5;
    pointer-events: none;
}

/* Prevent body scroll when side panel is open */
body.side-panel-open {
    overflow: hidden;
}

/* Mobile: show inline expansion, hide side panel */
@media (max-width: 767px) {
    .story-side-panel {
        display: none !important;
    }

    .carousel-slide,
    .library-slide {
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .full-story-content {
        display: none;
    }

    .full-story-content.expanded {
        display: block;
    }

    /* Hide old inline read-more buttons on mobile - bottom nav handles this */
    .read-more-btn {
        display: none !important;
    }

    /* Remove space from hidden elements in full story mode */
    .carousel-slide.full-story-mode .slide-image-wrapper,
    .carousel-slide.full-story-mode .slide-description {
        display: none !important;
        margin: 0 !important;
        padding: 0 !important;
        height: 0 !important;
        min-height: 0 !important;
    }
}

/* Desktop: show side panel, hide inline expansion */
@media (min-width: 768px) {
    .story-side-panel {
        display: block;
    }
    
    .full-story-content {
        display: none !important;
    }
    
    .read-more-btn {
        /* Button text changes to "Read full story" on desktop */
    }
}

/* Description container for carousel slides */
.slide-description-container {
  width: 100%;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Story sources - Learn more links (Library only) */
.story-sources {
  margin-top: var(--spacing-lg);
  font-size: var(--font-size-sm);
}

.story-sources-label {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--color-gray-500);
  margin-right: 6px;
}

.story-sources a {
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.story-sources a:hover {
  text-decoration: underline;
}

.story-sources a i {
  font-size: 0.75em;
  margin-left: 3px;
  opacity: 0.8;
}

/* Full Story Mode - Mobile Reading Experience */

/* Full story content in expanded mode */
.full-story-content.expanded {
  display: block;
  animation: fadeIn 0.3s ease-out;
  margin-top: var(--spacing-lg);
}

/* Smooth fade-in animation for full story */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Improve full story paragraph spacing */
.full-story-content.expanded p {
  margin-bottom: var(--spacing-lg);
  line-height: 1.6;
  font-size: var(--font-size-base);
  color: var(--color-gray-900);
}

.full-story-content.expanded p:first-child {
  margin-top: 0;
}

.full-story-content.expanded p:last-child {
  margin-bottom: 0; /* Container margin handles clearance */
}

/* Back button styling in full story mode */
.full-story-mode .read-more-btn {
  margin-top: var(--spacing-lg);
  background: var(--color-gray-200);
  color: var(--color-gray-900);
  font-weight: 600;
}

.full-story-mode .read-more-btn:hover {
  background: var(--color-gray-300);
}

/* Two-Line Header (Category + Person Name) */
#story-header,
#carousel-modal-header {
  display: flex;
  flex-direction: column;
  gap: 0;
}

#story-header-top,
#carousel-modal-header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

/* Person name in header (second line) */
#person-name,
#carousel-modal-person {
  font-family: var(--font-mono);
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-gray-900);
  margin: var(--spacing-xs) 0 0 0;
  padding: 0;
  line-height: 1.3;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Ensure object name and buttons stay on same line */
#story-header-top #object-name,
#carousel-modal-header-top #carousel-modal-object {
  flex: 1;
  margin: 0;
}

#story-header-buttons {
  display: flex;
  gap: var(--spacing-sm);
  flex-shrink: 0;
}

/* ============================================
   Mobile Bottom Navigation
   (Primary Action + Carousel Nav)
   ============================================ */

/* Container - mobile only */
.mobile-bottom-nav {
  display: none; /* Hidden by default */
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-white);
  border-top: 1px solid var(--color-gray-200);
  z-index: 1000;
  padding: 12px 16px 12px 16px;
  box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.08);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

/* Show on mobile only when story is open */
@media (max-width: 767px) {
  #story-container.story-open ~ #mobile-bottom-nav,
  .mobile-bottom-nav.visible {
    display: block;
    opacity: 1;
    visibility: visible;
  }
}

/* Primary Action Section - Hidden for summary-only version (no full stories) */
.bottom-action-section {
  display: none; /* Hidden until full stories are enabled */
  justify-content: center;
  margin-bottom: 12px;
}

.bottom-action-button {
  width: 100%;
  max-width: 400px;
  padding: 14px 24px;
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: 10px;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
  touch-action: manipulation;
}

.bottom-action-button:hover {
  background: #1d4ed8;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
}

.bottom-action-button:active {
  transform: scale(0.98);
  box-shadow: 0 1px 4px rgba(37, 99, 235, 0.3);
}

/* Divider between sections - Hidden for summary-only version */
.bottom-nav-divider {
  display: none; /* Hidden until full stories are enabled */
  height: 1px;
  background: var(--color-gray-200);
  margin: 8px 0;
}

/* Secondary Carousel Navigation Section */
.carousel-nav-section {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 4px 0;
}

.carousel-nav-button {
  width: 32px;
  height: 32px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--color-gray-300);
  border-radius: 6px;
  color: var(--color-gray-600);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.carousel-nav-button:hover:not(:disabled) {
  background: var(--color-gray-100);
  border-color: var(--color-gray-400);
  color: var(--color-gray-900);
}

.carousel-nav-button:disabled {
  visibility: hidden; /* Hide at boundaries instead of showing disabled */
}

.carousel-nav-button i {
  font-size: 14px;
}

/* Carousel dots in mobile nav - HIDDEN */
.carousel-nav-section .carousel-dots,
#mobile-carousel-dots {
  display: none;
}

/* Story counter */
.carousel-counter {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--color-gray-600);
  white-space: nowrap;
  flex-shrink: 0;
}

/* Hide desktop carousel nav on mobile */
@media (max-width: 767px) {
  .carousel-nav-desktop {
    display: none !important;
  }
}

/* Mobile bottom nav clearance for scrollable content */
@media (max-width: 768px) {
  /* Library modal - fixed height for scroll structure */
  #carousel-modal {
    max-height: 85vh;
    max-height: 85dvh;
    height: 85vh;
    height: 85dvh;
  }

  /* Modal body - flex to fill, allows scroll */
  #carousel-modal-body {
    flex: 1;
    min-height: 0; /* Critical for flex scroll */
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }

  /* Library carousel - fills modal body */
  #library-carousel {
    flex: 1;
    min-height: 0;
    overflow: hidden;
  }

  #library-carousel-track {
    height: 100%;
    overflow: visible;
  }

  /* Library slides - THE scroll container */
  .library-slide {
    height: 100% !important;
    max-height: 100% !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-y;
    overscroll-behavior: contain;
  }

  /* ===========================================
     LIBRARY VIEW PADDING (Summary-only version)
     Carousel nav ~50px, no action button
     =========================================== */

  /* Library Summary - Multiple stories (carousel visible) */
  .library-slide .library-slide-description-container {
    padding-bottom: 80px; /* Space for carousel nav */
  }

  /* Library Summary - Single story (no carousel, no action) */
  #library-carousel.single-story .library-slide .library-slide-description-container {
    padding-bottom: 24px; /* Just breathing room */
  }

  /* ===========================================
     DISCOVER VIEW PADDING (Summary-only version)
     Carousel nav ~50px, no action button
     =========================================== */

  /* Discover slides - scroll container */
  .carousel-slide {
    height: 100%;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch;
    box-sizing: border-box;
  }

  /* --- COLLAPSED VIEW (default) --- */

  /* Discover Summary - Multiple stories (carousel visible) */
  .carousel-slide .slide-image-wrapper {
    padding-bottom: 100px; /* Space for carousel nav */
  }

  /* Discover Summary - Single story (no carousel, no action) */
  #story-carousel.single-story .carousel-slide .slide-image-wrapper {
    padding-bottom: 24px; /* Just breathing room */
  }

  /* --- FULLSCREEN/EXPANDED VIEW --- */

  /* Discover Fullscreen Summary - Multiple stories */
  #story-container.story-fullscreen .carousel-slide .slide-image-wrapper {
    padding-bottom: 180px; /* Space for fixed bottom nav with carousel */
  }

  /* Discover Fullscreen Summary - Single story */
  #story-container.story-fullscreen #story-carousel.single-story .carousel-slide .slide-image-wrapper {
    padding-bottom: calc(120px + env(safe-area-inset-bottom, 0px)); /* Space for safe area + breathing room */
  }

  /* --- NO-IMAGE SLIDES (padding moves to description container) --- */

  /* Discover no-image Summary - Multiple stories */
  .carousel-slide.no-image .slide-description-container {
    padding-bottom: 100px; /* Space for carousel nav */
  }

  /* Discover no-image Summary - Single story */
  #story-carousel.single-story .carousel-slide.no-image .slide-description-container {
    padding-bottom: 24px; /* Just breathing room */
  }

  /* Discover no-image Fullscreen Summary - Multiple stories */
  #story-container.story-fullscreen .carousel-slide.no-image .slide-description-container {
    padding-bottom: 180px; /* Space for fixed bottom nav with carousel */
  }

  /* Discover no-image Fullscreen Summary - Single story */
  #story-container.story-fullscreen #story-carousel.single-story .carousel-slide.no-image .slide-description-container {
    padding-bottom: calc(120px + env(safe-area-inset-bottom, 0px)); /* Space for safe area + breathing room */
  }

  /* Carousel container clips horizontally but allows vertical scroll in slides */
  #story-carousel {
    overflow: hidden;
  }
}

/* Full story mode OR single story - hide carousel nav in mobile bottom bar */
.mobile-bottom-nav.hide-carousel .carousel-nav-section {
  display: none !important;
}

.mobile-bottom-nav.hide-carousel .bottom-nav-divider {
  display: none !important;
}

.mobile-bottom-nav.hide-carousel .bottom-action-section {
  margin-bottom: 0;
}

/* When single story and no action button, hide entire mobile bottom nav */
.mobile-bottom-nav.hide-carousel {
  display: none !important; /* Nothing to show - action hidden, carousel hidden */
}

/* Prevent carousel flash on initial load */
.mobile-bottom-nav:not(.visible) .carousel-nav-section {
  display: none;
}

/*
===============================================
===== DESKTOP STORY EXPERIENCE (min-width: 769px) =====
===============================================
*/

@media (min-width: 769px) {
  /* ===========================================
     DISCOVER PAGE: Compact Card with Integrated Navigation
     =========================================== */

  /* Hide side panel on desktop - use inline expansion instead */
  .story-side-panel {
    display: none !important;
  }

  /* Container for desktop navigation arrows + story card */
  .desktop-story-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xl);
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
  }

  /* Desktop navigation arrows positioned outside the card */
  /* Card is at bottom: 7%, auto height ~30-40vh typical */
  .desktop-nav-arrow {
    position: fixed;
    /* Card center: bottom 7% + ~half of typical card height */
    bottom: calc(7% + 18vh);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    cursor: pointer;
    display: none; /* Hidden by default, shown by JS when multi-story */
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    color: var(--color-gray-800);
    transition: opacity 0.2s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    z-index: 100;
  }

  /* Position arrows outside the card (card is 70% width centered) */
  /* Card edges are at 15% and 85%, arrows at ~10% from edges */
  #desktop-nav-prev {
    left: 10%;
  }

  #desktop-nav-next {
    right: 10%;
  }

  .desktop-nav-arrow:hover:not(:disabled) {
    background: var(--color-white);
  }

  .desktop-nav-arrow:disabled {
    display: none !important; /* Hide at boundaries - !important to override inline style */
  }

  /* Story counter in header (desktop only) */
  .story-counter {
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    margin-left: auto;
    margin-right: var(--spacing-md);
  }

  /* Ensure story header top row uses proper layout */
  #story-header-top {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
  }

  #story-header-top #object-name {
    flex-shrink: 0;
  }

  /* Hide desktop carousel nav (replaced by external arrows) */
  #carousel-nav.carousel-nav-desktop {
    display: none !important;
  }

  /* Story carousel on desktop - ensure proper height for scrolling */
  #story-carousel {
    flex: 1;
    min-height: 0;
    overflow: hidden;
  }

  #carousel-track {
    height: 100%;
  }

  /* Discover card: two-column layout */
  .carousel-slide {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: var(--spacing-lg);
    align-items: start;
    height: 100%;
    overflow: hidden; /* Slide itself doesn't scroll */
  }

  /* No-image slides: single centered column */
  .carousel-slide.no-image {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin: 0 auto;
  }

  /* Image wrapper on left - compact square */
  .carousel-slide .slide-image-wrapper {
    flex: none;
    width: 150px;
    height: 150px;
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    align-self: start;
  }

  .carousel-slide .slide-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  /* Person name below portrait on desktop - not needed, it's in header */
  .slide-person-name-desktop {
    display: none; /* Name is in the header for Discover */
  }

  /* Person name in Discover header should be visible */
  #person-name {
    display: block;
  }

  /* Description container - scrollable right column */
  .carousel-slide .slide-description-container {
    flex: 1;
    min-height: 0;
    padding: 0;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  /* No-image slides: center the text */
  .carousel-slide.no-image .slide-description-container {
    text-align: center;
  }

  .carousel-slide.no-image .slide-description {
    text-align: left;
    display: inline-block;
    max-width: 100%;
  }

  /* Inline full story expansion on desktop */
  .full-story-content {
    display: none;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-200);
  }

  .full-story-content.expanded {
    display: block !important;
    animation: fadeIn 0.3s ease-out;
  }

  /* Read more button styling for desktop */
  .read-more-btn {
    display: inline-block;
    margin-top: var(--spacing-md);
  }

  /* Full story mode: hide image and short description (like Library/mobile) */
  .carousel-slide.full-story-mode {
    grid-template-columns: 1fr; /* Single column in full story mode */
    display: flex;
    flex-direction: column;
  }

  .carousel-slide.full-story-mode .slide-image-wrapper {
    display: none !important;
  }

  .carousel-slide.full-story-mode .slide-description {
    display: none !important;
  }

  /* Remove border/padding from full story content in full-story-mode */
  .carousel-slide.full-story-mode .full-story-content {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
  }

  /* Ensure description container remains scrollable in full story mode */
  /* No extra horizontal padding - card already has 28px padding */
  .carousel-slide.full-story-mode .slide-description-container {
    flex: 1 1 0;
    min-height: 0;
    height: 0;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 0;
    padding-top: var(--spacing-md);
    padding-bottom: var(--spacing-xl);
  }

  /* Hide inline read more button on desktop (using action bar instead) */
  .carousel-slide .read-more-btn {
    display: none !important;
  }

  /* Discover #object-story - auto height with safety cap */
  #object-story {
    padding: var(--spacing-lg) var(--spacing-xl) var(--spacing-lg);
    height: auto;
    max-height: 45vh;
    min-height: 180px;
  }

  #inner-description {
    height: auto;
  }

  #story-carousel {
    height: auto;
  }

  #carousel-track {
    height: auto;
  }

  #story-header {
    margin-bottom: var(--spacing-sm);
  }

  .carousel-slide {
    height: auto;
  }

  /* Discover desktop action bar - Hidden for summary-only version */
  .discover-desktop-action-bar {
    display: none !important; /* Hidden until full stories are enabled */
    flex-shrink: 0;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-top: 1px solid var(--color-gray-200);
    background: var(--color-white);
    justify-content: center;
    align-items: center;
    margin: 0 -28px -0px; /* Extend to edges of card */
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
  }

  .discover-desktop-action-btn {
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    padding: var(--spacing-sm) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
  }

  .discover-desktop-action-btn:hover {
    background: var(--color-primary-dark, #1a4ed8);
  }

  .discover-desktop-action-btn:active {
    transform: scale(0.98);
  }

  /* No-image slides: desktop-specific adjustments */
  /* (Global .no-image styles handle hiding the image wrapper) */
  .carousel-slide.no-image {
    grid-template-columns: 1fr;
  }

  .carousel-slide.no-image .slide-person-name-desktop {
    display: none;
  }

  .carousel-slide.no-image .slide-description-container {
    max-height: 100%;
    overflow-y: auto;
  }

  /* ===========================================
     LIBRARY PAGE: Enlarged Mobile Layout with Side Arrows
     =========================================== */

  /* Library modal - explicit height constraint */
  #carousel-modal {
    max-width: 600px;
    height: 80vh;
    max-height: 80vh;
  }

  /* Modal body - fills modal, enables scrolling chain */
  #carousel-modal-body {
    flex: 1 1 0;
    min-height: 0;
    height: 0; /* Force flex item to respect parent height */
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }

  /* Library carousel - fills modal body */
  #library-carousel {
    flex: 1 1 0;
    min-height: 0;
    height: 0;
    overflow: hidden;
  }

  /* Carousel track - explicit height */
  #library-carousel-track {
    height: 100%;
    min-height: 0;
  }

  /* Hide bottom carousel nav (replaced by side arrows) */
  #library-carousel-nav.carousel-nav-desktop {
    display: none !important;
  }

  /* Story counter in library modal header */
  .library-story-counter {
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    margin-left: auto;
    margin-right: var(--spacing-md);
  }

  /* Ensure library modal header top row uses proper layout */
  #carousel-modal-header-top {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
  }

  #carousel-modal-header-top #carousel-modal-object {
    flex-shrink: 0;
  }

  /* Desktop navigation arrows for Library (outside modal) */
  .library-desktop-nav-arrow {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    color: var(--color-gray-800);
    transition: background-color 0.2s ease, transform 0.2s ease, opacity 0.2s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    z-index: 1001; /* Above modal overlay */
  }

  #library-desktop-nav-prev {
    left: calc(50% - 360px);
  }

  #library-desktop-nav-next {
    right: calc(50% - 360px);
  }

  .library-desktop-nav-arrow:hover:not(:disabled) {
    background: var(--color-white);
    transform: translateY(-50%) scale(1.05);
  }

  .library-desktop-nav-arrow:active:not(:disabled) {
    transform: translateY(-50%) scale(0.95);
  }

  .library-desktop-nav-arrow:disabled {
    display: none !important; /* Hide at boundaries - !important to override inline style */
  }

  /* Library slide: fills carousel track, ENTIRE slide scrolls */
  /* No vertical padding - content fills edge-to-edge with header/footer */
  .library-slide {
    flex: 0 0 100%;
    min-width: 100%;
    height: 100% !important;
    max-height: 100% !important;
    display: block; /* Block layout so content flows naturally */
    overflow-y: auto !important; /* Slide itself scrolls */
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    padding: 0 var(--spacing-xl); /* Horizontal only, no vertical */
    box-sizing: border-box;
  }

  /* Image wrapper - scrolls with content, centered, full width on desktop */
  .library-slide .library-slide-image-wrapper {
    max-width: 100%; /* Override mobile 300px max-width */
    max-height: 200px;
    overflow: hidden;
    margin: var(--spacing-lg) auto; /* Top/bottom spacing, centered */
  }

  .library-slide .library-slide-image {
    width: 100%;
    max-height: 200px;
    object-fit: contain;
  }

  /* Description container - flows with content, no separate scrolling */
  .library-slide .library-slide-description-container {
    overflow: visible; /* Don't scroll separately */
    padding-bottom: var(--spacing-lg); /* Bottom spacing */
  }

  /* Inline full story expansion */
  .library-slide .full-story-content {
    display: none;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-200);
  }

  .library-slide .full-story-content.expanded {
    display: block !important;
  }

  /* Full story mode: hide image and short description (like mobile) */
  .library-slide.full-story-mode .library-slide-image-wrapper {
    display: none !important;
  }

  .library-slide.full-story-mode .library-slide-description {
    display: none !important;
  }

  /* In full story mode, remove the border/margin from full story content */
  .library-slide.full-story-mode .full-story-content {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
  }

  /* In full story mode, remove vertical padding - content fills edge to edge */
  .library-slide.full-story-mode {
    padding-top: 0;
    padding-bottom: 0;
  }

  /* Add internal padding to the full story content itself */
  .library-slide.full-story-mode .full-story-content.expanded {
    padding: var(--spacing-lg) 0;
  }

  /* No-image slides: add top padding since image wrapper is hidden */
  .library-slide.no-image .library-slide-description-container {
    padding-top: var(--spacing-lg);
  }

  /* No-image + full-story mode: reset top padding (handled by full-story-content) */
  .library-slide.no-image.full-story-mode .library-slide-description-container {
    padding-top: 0;
  }

  /* Full-story mode: reset description container padding (handled by full-story-content) */
  .library-slide.full-story-mode .library-slide-description-container {
    padding-bottom: 0;
  }

  /* Desktop action bar - Hidden for summary-only version */
  .library-desktop-action-bar {
    display: none !important; /* Hidden until full stories are enabled */
    flex-shrink: 0;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-top: 1px solid var(--color-gray-200);
    background: var(--color-white);
    justify-content: center;
    align-items: center;
  }

  .library-desktop-action-btn {
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    padding: var(--spacing-sm) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
  }

  .library-desktop-action-btn:hover {
    background: var(--color-primary-dark, #1a4ed8);
  }

  .library-desktop-action-btn:active {
    transform: scale(0.98);
  }

  /* Hide mobile bottom nav on desktop */
  #library-mobile-bottom-nav,
  #mobile-bottom-nav {
    display: none !important;
  }

  /* Hide inline read more button on desktop (using fixed action bar instead) */
  .library-slide .read-more-btn {
    display: none !important;
  }
}