/* ============================================
   THE LIVING STORYBOOK — Main Stylesheet
   Design System: "The Living Storybook"
   ============================================ */

/* ── Design Tokens ── */
:root {
  --surface: #eff8fe;
  --surface-dim: #c8d7df;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #e7f1f8;
  --surface-container: #dfeaf1;
  --surface-container-high: #d9e4ec;
  --surface-container-highest: #d1dfe7;

  --primary: #005f9b;
  --primary-container: #5cb1ff;
  --on-primary: #ffffff;
  --on-primary-container: #002e4d;

  --secondary: #6d5a00;
  --secondary-container: #fad538;
  --secondary-fixed: #fad538;
  --on-secondary-container: #5a4a00;

  --tertiary: #7b5ea7;
  --tertiary-container: #e8d8ff;

  --error: #ba1a1a;
  --error-container: #ffdad6;
  --on-error: #ffffff;

  --on-background: #273034;
  --on-surface: #273034;
  --on-surface-variant: #5a6268;
  --outline-variant: #a5aeb4;

  --font-family: 'Plus Jakarta Sans', sans-serif;

  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem;
  --space-4: 1rem; --space-5: 1.25rem; --space-6: 1.5rem;
  --space-8: 2.75rem; --space-10: 3.5rem; --space-12: 4rem;

  --radius-sm: 0.5rem; --radius-md: 1rem; --radius-lg: 2rem;
  --radius-xl: 3rem; --radius-full: 9999px;

  --shadow-ambient: 0 8px 32px rgba(39, 48, 52, 0.06);
  --shadow-float: 0 12px 40px rgba(39, 48, 52, 0.08);
  --ghost-border: rgba(165, 174, 180, 0.15);
}

/* ── Reset ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-family);
  background: var(--surface);
  color: var(--on-surface);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
h1,h2,h3,h4,h5,h6,p,span,label { color: var(--on-surface); }

/* ── Typography ── */
.display-lg { font-size: 3.5rem; font-weight: 800; line-height: 1.1; letter-spacing: -0.02em; }
.display-md { font-size: 2.5rem; font-weight: 800; line-height: 1.15; }
.headline { font-size: 2rem; font-weight: 700; line-height: 1.2; }
.title-lg { font-size: 1.5rem; font-weight: 700; }
.title-md { font-size: 1.25rem; font-weight: 700; line-height: 1.3; }
.body-lg { font-size: 1rem; font-weight: 400; line-height: 1.7; }
.body-md { font-size: 0.9rem; font-weight: 400; line-height: 1.6; color: var(--on-surface-variant); }
.label { font-size: 0.8rem; font-weight: 500; letter-spacing: 0.04em; color: var(--on-surface-variant); }
.subtitle { color: var(--on-surface-variant); max-width: 480px; }

/* ── Layout ── */
.container { max-width: 960px; margin: 0 auto; padding: 0 var(--space-6); }
.section-header { text-align: center; margin-bottom: var(--space-10); }
.section-header .subtitle { margin: var(--space-3) auto 0; }
.section-cta { text-align: center; margin-top: var(--space-8); }
.centered { justify-content: center; }

/* ── Flash Messages ── */
.flash-message {
  position: fixed; top: 5.5rem; left: 50%; transform: translateX(-50%);
  z-index: 200; display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-weight: 600; font-size: 0.9rem;
  box-shadow: var(--shadow-float);
  animation: slideDown 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  max-width: 90%;
}
.flash-success { background: #d4edda; color: #155724; }
.flash-error { background: #ffdad6; color: #ba1a1a; }
.flash-warning { background: #fff3cd; color: #856404; }
.flash-info { background: var(--surface-container-lowest); color: var(--on-surface); }
.flash-close { background: none; border: none; font-size: 1.1rem; cursor: pointer; padding: 0 var(--space-2); opacity: 0.6; }
.flash-close:hover { opacity: 1; }

/* ── Nav ── */
.nav-glass {
  position: fixed; top: var(--space-4); left: 50%; transform: translateX(-50%);
  width: min(92%, 920px); z-index: 100;
  background: rgba(92, 177, 255, 0.6);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-full);
  padding: var(--space-3) var(--space-5);
  box-shadow: var(--shadow-float);
  border: 1px solid var(--ghost-border);
  animation: slideDown 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
  transition: padding 0.3s, background 0.3s;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); }
.nav-logo { display: flex; align-items: center; gap: var(--space-2); text-decoration: none; }
.logo-icon { font-size: 1.6rem; }
.logo-text { font-size: 1.2rem; font-weight: 800; color: var(--on-primary); }
.nav-links { display: flex; gap: var(--space-4); }
.nav-link { color: var(--on-primary); font-weight: 600; font-size: 0.9rem; opacity: 0.85; transition: opacity 0.2s; }
.nav-link:hover, .nav-link.active { opacity: 1; }
.nav-actions { display: flex; align-items: center; gap: var(--space-3); }
.nav-mobile-toggle { display: none; background: none; border: none; font-size: 1.4rem; cursor: pointer; color: var(--on-primary); }

/* User Dropdown */
.nav-user-menu { position: relative; }
.nav-user-btn {
  display: flex; align-items: center; gap: var(--space-2);
  background: rgba(255,255,255,0.2); border: none;
  border-radius: var(--radius-full);
  padding: var(--space-1) var(--space-3) var(--space-1) var(--space-2);
  cursor: pointer; font-family: var(--font-family); font-weight: 600; font-size: 0.85rem; color: var(--on-primary);
  transition: background 0.2s;
}
.nav-user-btn:hover { background: rgba(255,255,255,0.3); }
.nav-avatar { font-size: 1.4rem; }
.nav-caret { font-size: 0.7rem; opacity: 0.7; }
.user-dropdown {
  position: absolute; top: calc(100% + 8px); right: 0;
  background: var(--surface-container-lowest);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-float);
  min-width: 180px; padding: var(--space-2) 0;
  display: none; animation: fadeInUp 0.2s ease-out;
}
.user-dropdown.open { display: block; }
.dropdown-item {
  display: block; padding: var(--space-3) var(--space-5);
  font-size: 0.9rem; font-weight: 500; color: var(--on-surface);
  transition: background 0.15s;
}
.dropdown-item:hover { background: var(--surface-container-low); }
.dropdown-danger { color: var(--error); }
.dropdown-divider { height: 1px; background: var(--ghost-border); margin: var(--space-2) 0; }

/* ── Buttons ── */
.btn-primary {
  display: inline-flex; align-items: center; gap: var(--space-2);
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  color: var(--on-primary); border: none;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-family: var(--font-family); font-size: 1rem; font-weight: 700;
  cursor: pointer;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s;
  box-shadow: var(--shadow-ambient);
}
.btn-primary:hover { transform: scale(1.05); box-shadow: var(--shadow-float); }
.btn-primary:active { transform: scale(0.97); }
.btn-primary.btn-sm { padding: var(--space-2) var(--space-4); font-size: 0.85rem; }
.btn-primary.btn-full { width: 100%; justify-content: center; padding: var(--space-4) var(--space-6); font-size: 1.1rem; }

.btn-secondary {
  display: inline-flex; align-items: center; gap: var(--space-2);
  background: var(--secondary-container); color: var(--on-secondary-container); border: none;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-family: var(--font-family); font-size: 1rem; font-weight: 700;
  cursor: pointer;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s;
  box-shadow: var(--shadow-ambient);
}
.btn-secondary:hover { transform: scale(1.05); box-shadow: var(--shadow-float); }
.btn-secondary:active { transform: scale(0.97); }
.btn-secondary.btn-sm { padding: var(--space-2) var(--space-4); font-size: 0.85rem; }

.btn-icon {
  background: var(--surface-container); border: none;
  width: 36px; height: 36px; border-radius: var(--radius-full);
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer; font-size: 1rem;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.2s;
}
.btn-icon:hover { transform: scale(1.1); background: var(--surface-container-high); }
.btn-icon-danger:hover { background: #ffdad6; }

/* ── Pills ── */
.pill {
  display: inline-flex; align-items: center; gap: var(--space-1);
  background: var(--surface-container); color: var(--on-surface-variant); border: none;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-family: var(--font-family); font-size: 0.85rem; font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.2s;
}
.pill:hover { transform: scale(1.05); background: var(--surface-container-high); }
.pill-active { background: linear-gradient(135deg, var(--primary), var(--primary-container)); color: var(--on-primary); }

/* ── Hero ── */
.hero {
  background: var(--surface-container-low);
  padding: 8rem var(--space-6) var(--space-12);
  position: relative; overflow: hidden; min-height: 85vh;
  display: flex; align-items: center;
}
.hero-content {
  display: grid; grid-template-columns: 1.2fr 1fr;
  align-items: center; gap: var(--space-10);
}
.hero-label { font-size: 0.95rem; font-weight: 700; color: var(--primary); margin-bottom: var(--space-3); animation: fadeInUp 0.6s ease-out 0.2s both; }
.hero .display-lg {
  background: linear-gradient(135deg, var(--primary), var(--tertiary));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; animation: fadeInUp 0.6s ease-out 0.3s both;
}
.hero-desc { margin-top: var(--space-5); color: var(--on-surface-variant); max-width: 420px; animation: fadeInUp 0.6s ease-out 0.4s both; }
.hero-actions { display: flex; gap: var(--space-4); margin-top: var(--space-8); flex-wrap: wrap; animation: fadeInUp 0.6s ease-out 0.5s both; }
.hero-meta { display: flex; gap: var(--space-3); margin-top: var(--space-6); flex-wrap: wrap; animation: fadeInUp 0.6s ease-out 0.6s both; }
.hero-illustration { position: relative; display: flex; align-items: center; justify-content: center; min-height: 380px; }
.bunny-container {
  width: 220px; height: 220px;
  background: var(--surface-container-lowest);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-float);
  animation: float 4s ease-in-out infinite;
  position: relative; z-index: 2;
}
.bunny { font-size: 6rem; animation: bounce-gentle 2s ease-in-out infinite; }
.cloud { position: absolute; font-size: 3rem; opacity: 0.6; animation: float 6s ease-in-out infinite; }
.cloud-1 { top: 10%; left: 5%; animation-delay: 0s; font-size: 4rem; opacity: 0.4; }
.cloud-2 { top: 5%; right: 10%; animation-delay: 2s; font-size: 2.5rem; opacity: 0.5; }
.cloud-3 { bottom: 15%; right: 5%; animation-delay: 1s; font-size: 2rem; }
.hero-wave {
  position: absolute; bottom: -2px; left: 0; right: 0;
  height: 80px; background: var(--surface);
  clip-path: ellipse(55% 100% at 50% 100%);
}

/* ── Page Header ── */
.page-header {
  padding: 8rem 0 var(--space-8);
  background: var(--surface-container-low);
  text-align: center;
}
.page-header .display-md {
  background: linear-gradient(135deg, var(--primary), var(--tertiary));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Search ── */
.search-section { padding: var(--space-8) 0 var(--space-6); }
.search-bar {
  display: flex; align-items: center; gap: var(--space-3);
  background: var(--surface-dim);
  border-radius: var(--radius-full);
  padding: var(--space-4) var(--space-6);
  max-width: 560px; margin: 0 auto var(--space-6);
  transition: box-shadow 0.3s;
}
.search-bar:focus-within { box-shadow: var(--shadow-float); }
.search-icon { font-size: 1.2rem; flex-shrink: 0; }
.search-input {
  flex: 1; border: none; background: transparent;
  font-family: var(--font-family); font-size: 1rem;
  color: var(--on-surface); outline: none;
}
.search-input::placeholder { color: var(--on-surface-variant); }
.category-pills { display: flex; gap: var(--space-3); flex-wrap: wrap; }
.categories-section { padding: var(--space-6) 0; }

/* ── Story Cards ── */
.stories-section { padding: var(--space-10) 0 var(--space-12); }
.stories-section.alt-bg { background: var(--surface-container-low); }
.story-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-8); }
.story-card {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-ambient); cursor: pointer;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s;
}
.story-card:hover { transform: translateY(-8px) scale(1.02); box-shadow: var(--shadow-float); }
.card-illustration {
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: visible;
  padding: var(--space-5) var(--space-4) var(--space-4);
}
.card-cover-wrap {
  width: min(62%, 210px);
  aspect-ratio: 2 / 3;
  border-radius: 12px;
  background: linear-gradient(160deg, #d0e8ff, #b3d4f0);
  overflow: hidden;
  box-shadow: 0 12px 28px rgba(39, 48, 52, 0.18);
}
.card-cover-image {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.story-card:hover .card-cover-image { transform: scale(1.08); }
.card-cover-fallback {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  color: #23455e;
  background: linear-gradient(160deg, #d0e8ff 0%, #7ab3df 100%);
}
.card-cover-fallback-icon { font-size: 3rem; }
.card-cover-fallback-text { font-weight: 700; font-size: 0.85rem; letter-spacing: 0.05em; }
.card-badge {
  position: absolute; top: var(--space-3); right: var(--space-3);
  background: var(--secondary-container); color: var(--on-secondary-container);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: 0.75rem; font-weight: 700;
}
.card-body { padding: var(--space-5) var(--space-6) var(--space-6); }
.card-body .title-md { margin-bottom: var(--space-2); }
.card-body .body-md { margin-bottom: var(--space-4); }
.card-footer { display: flex; gap: var(--space-4); flex-wrap: wrap; }

/* ── CTA Section ── */
.cta-section { padding: var(--space-12) 0; }
.cta-card {
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  border-radius: var(--radius-xl);
  padding: var(--space-12) var(--space-8);
  text-align: center; color: var(--on-primary);
}
.cta-card h2, .cta-card p { color: var(--on-primary); }
.cta-card p { opacity: 0.9; margin: var(--space-3) auto var(--space-6); max-width: 400px; }
.cta-illustration { font-size: 3rem; margin-bottom: var(--space-4); }
.cta-card .btn-primary {
  background: var(--surface-container-lowest); color: var(--primary);
}

/* ── Empty State ── */
.empty-state {
  text-align: center; padding: var(--space-12) var(--space-6);
  color: var(--on-surface-variant);
}
.empty-icon { font-size: 4rem; display: block; margin-bottom: var(--space-4); opacity: 0.5; }

/* ── Auth Pages ── */
.auth-page { background: var(--surface); }
.auth-wrapper {
  min-height: 100vh; display: grid; grid-template-columns: 1fr 1fr;
}
.auth-illustration {
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: var(--space-12); color: var(--on-primary); position: relative; overflow: hidden;
}
.auth-illustration h2, .auth-illustration p { color: var(--on-primary); }
.auth-illustration p { opacity: 0.85; margin-top: var(--space-3); }
.auth-clouds { position: absolute; width: 100%; height: 100%; top: 0; left: 0; }
.auth-clouds .cloud { position: absolute; animation: float 6s ease-in-out infinite; }
.auth-clouds .c1 { top: 15%; left: 10%; font-size: 3rem; opacity: 0.3; }
.auth-clouds .c2 { top: 25%; right: 15%; font-size: 2rem; opacity: 0.4; animation-delay: 1s; }
.auth-clouds .c3 { bottom: 20%; left: 20%; font-size: 2.5rem; opacity: 0.25; animation-delay: 2s; }
.auth-mascot { font-size: 5rem; margin-bottom: var(--space-6); position: relative; z-index: 2; animation: bounce-gentle 3s ease-in-out infinite; }
.auth-welcome { position: relative; z-index: 2; }

.auth-card {
  display: flex; flex-direction: column; justify-content: center;
  padding: var(--space-12) var(--space-8);
  max-width: 480px; margin: 0 auto; width: 100%;
}
.auth-header { margin-bottom: var(--space-8); }
.auth-logo { display: flex; align-items: center; gap: var(--space-2); margin-bottom: var(--space-6); }
.auth-logo .logo-text { color: var(--primary); }
.auth-header .headline { margin-bottom: var(--space-2); }
.auth-form { display: flex; flex-direction: column; gap: var(--space-5); }
.auth-footer { margin-top: var(--space-6); text-align: center; }
.auth-link { color: var(--primary); font-weight: 700; }
.auth-link:hover { text-decoration: underline; }

/* ── Form Fields ── */
.form-group { display: flex; flex-direction: column; }
.form-label { font-size: 0.85rem; font-weight: 700; margin-bottom: var(--space-2); color: var(--on-surface); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.form-row .flex-2 { grid-column: span 1; }
.input-field {
  width: 100%; background: var(--surface-container-highest); border: none;
  border-radius: var(--radius-xl); padding: var(--space-4) var(--space-5);
  font-family: var(--font-family); font-size: 1rem; color: var(--on-surface); outline: none;
  transition: box-shadow 0.2s, background 0.3s;
}
.input-field::placeholder { color: var(--on-surface-variant); }
.input-field:focus { box-shadow: 0 0 0 3px rgba(92, 177, 255, 0.3); }
.input-field.input-sm { padding: var(--space-3) var(--space-4); font-size: 0.9rem; border-radius: var(--radius-lg); }
.textarea { border-radius: var(--radius-lg); resize: vertical; min-height: 80px; }
select.input-field { cursor: pointer; appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' fill='none' stroke='%23273034' stroke-width='2'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 1rem center; }

.input-password-wrap { position: relative; }
.password-toggle {
  position: absolute; right: var(--space-4); top: 50%; transform: translateY(-50%);
  background: none; border: none; cursor: pointer; font-size: 1.1rem; opacity: 0.6;
}
.password-toggle:hover { opacity: 1; }

.input-error { background: rgba(251, 81, 81, 0.12); animation: wiggle 0.5s ease-in-out; }
.error-text { margin-top: var(--space-2); font-size: 0.85rem; font-weight: 600; color: var(--error); }

.form-check { display: flex; align-items: center; }
.check-label { display: flex; align-items: center; gap: var(--space-2); font-size: 0.9rem; cursor: pointer; }
.check-label input[type="checkbox"] { width: 18px; height: 18px; border-radius: var(--radius-sm); accent-color: var(--primary); }
.form-actions { display: flex; gap: var(--space-4); margin-top: var(--space-4); }

/* ── Profile ── */
.profile-section { padding: var(--space-8) 0 var(--space-12); }
.profile-card {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-xl); padding: var(--space-10);
  text-align: center; max-width: 500px; margin: 0 auto;
  box-shadow: var(--shadow-ambient);
}
.profile-avatar { font-size: 4rem; margin-bottom: var(--space-4); }
.profile-stats { display: flex; justify-content: center; gap: var(--space-8); margin: var(--space-6) 0; }
.stat { text-align: center; }
.stat-number { display: block; font-size: 1.6rem; font-weight: 800; color: var(--primary); line-height: 1.2; }

/* ── Footer ── */
.footer { background: var(--surface-dim); padding: var(--space-10) 0 var(--space-6); }
.footer-content { display: flex; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; gap: var(--space-6); margin-bottom: var(--space-8); }
.footer-brand { display: flex; flex-direction: column; gap: var(--space-2); }
.footer-brand .logo-icon { font-size: 2rem; }
.footer-brand .logo-text { font-size: 1.4rem; color: var(--on-surface); }
.footer-tagline { color: var(--on-surface-variant); }
.footer-links { display: flex; gap: var(--space-5); flex-wrap: wrap; }
.footer-link { color: var(--on-surface-variant); font-weight: 600; font-size: 0.9rem; transition: color 0.2s; }
.footer-link:hover { color: var(--primary); }
.footer-copy { text-align: center; padding-top: var(--space-6); border-top: 1px solid var(--ghost-border); }

/* ── Error Page ── */
.error-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.error-content { text-align: center; }
.error-emoji { font-size: 5rem; display: block; margin-bottom: var(--space-4); animation: bounce-gentle 2s ease-in-out infinite; }
.error-page .display-lg {
  background: linear-gradient(135deg, var(--primary), var(--tertiary));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.error-page .body-lg { margin: var(--space-3) 0 var(--space-6); color: var(--on-surface-variant); }

/* ── Animations ── */
@keyframes slideDown {
  from { opacity: 0; transform: translateX(-50%) translateY(-30px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-16px); }
}
@keyframes bounce-gentle {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-8px) rotate(3deg); }
}
@keyframes wiggle {
  0% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
  100% { transform: translateX(0); }
}

.reveal {
  opacity: 0; transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.34, 1.56, 0.64, 1),
              transform 0.7s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── Responsive ── */
@media (max-width: 768px) {
  .display-lg { font-size: 2.4rem; }
  .display-md { font-size: 2rem; }
  .headline { font-size: 1.6rem; }
  .hero-content { grid-template-columns: 1fr; text-align: center; }
  .hero-desc { margin-left: auto; margin-right: auto; }
  .hero-actions, .hero-meta { justify-content: center; }
  .hero-illustration { min-height: 260px; }
  .bunny-container { width: 160px; height: 160px; }
  .bunny { font-size: 4rem; }
  .nav-links { display: none; }
  .nav-actions .btn-secondary { display: none; }
  .nav-mobile-toggle { display: block; }
  .story-grid { grid-template-columns: 1fr; }
  .auth-wrapper { grid-template-columns: 1fr; }
  .auth-illustration { display: none; }
  .auth-card { padding: var(--space-8) var(--space-6); }
  .form-row { grid-template-columns: 1fr; }
  .footer-content { flex-direction: column; align-items: center; text-align: center; }
  .footer-links { justify-content: center; }
}

/* ============================================
   PDF READER & UPLOAD
   ============================================ */

.reader-header {
  padding: 7rem 0 var(--space-8);
  background: var(--surface-container-low);
}
.back-link {
  display: inline-block; color: var(--primary);
  font-weight: 700; font-size: 0.9rem;
  margin-bottom: var(--space-5); transition: transform 0.2s;
}
.back-link:hover { transform: translateX(-4px); }
.reader-info { display: flex; align-items: center; gap: var(--space-5); }
.reader-emoji { font-size: 3.5rem; }
.reader-cover-wrap {
  width: 140px;
  aspect-ratio: 2 / 3;
  border-radius: var(--radius-md);
  overflow: hidden; background: var(--surface-container-high);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 24px rgba(39, 48, 52, 0.16);
}
.reader-cover-image { width: 100%; height: 100%; object-fit: cover; display: block; }
.reader-meta { display: flex; gap: var(--space-3); margin-top: var(--space-3); flex-wrap: wrap; }
.reader-excerpt { margin-top: var(--space-5); color: var(--on-surface-variant); max-width: 600px; }
.reader-content { padding: var(--space-8) 0 var(--space-12); }

.pdf-viewer-card {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-xl); overflow: hidden;
  box-shadow: var(--shadow-float);
}
.pdf-toolbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: var(--space-4) var(--space-6);
  background: var(--surface-container);
  flex-wrap: wrap; gap: var(--space-3);
}
.pdf-title { font-weight: 700; font-size: 0.9rem; }
.pdf-actions { display: flex; gap: var(--space-3); }
.pdf-embed-wrapper { width: 100%; }
.pdf-embed { width: 100%; height: 80vh; min-height: 500px; border: none; display: block; }
.pdf-mobile-fallback { display: none; text-align: center; padding: var(--space-8); }

.text-reader-card {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-xl);
  padding: var(--space-10) var(--space-8);
  box-shadow: var(--shadow-ambient);
  max-width: 700px; margin: 0 auto;
}
.story-text { font-size: 1.1rem; line-height: 2; color: var(--on-surface); }

.upload-area {
  position: relative;
  border: 2px dashed var(--outline-variant);
  border-radius: var(--radius-lg);
  padding: var(--space-8); text-align: center; cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.upload-area:hover, .upload-area.drag-over {
  border-color: var(--primary-container);
  background: rgba(92, 177, 255, 0.05);
}
.upload-input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.upload-icon { font-size: 2.5rem; margin-bottom: var(--space-3); display: block; }
.upload-link { color: var(--primary); font-weight: 700; }
.upload-placeholder { display: flex; flex-direction: column; align-items: center; }
.upload-preview { display: flex; align-items: center; gap: var(--space-3); justify-content: center; }
.upload-file-icon { font-size: 1.8rem; }
.upload-file-name { font-weight: 700; font-size: 0.95rem; }
.current-pdf {
  margin-top: var(--space-3); display: flex; align-items: center;
  gap: var(--space-4); font-size: 0.85rem; color: var(--on-surface-variant);
}
.pdf-view-link { color: var(--primary); font-weight: 700; }

.card-badge-pdf {
  position: absolute; bottom: var(--space-3); right: var(--space-3);
  background: rgba(39, 48, 52, 0.7); color: white;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: 0.7rem; font-weight: 700; backdrop-filter: blur(4px);
}

/* story-card as link */
a.story-card { display: block; color: inherit; text-decoration: none; }

/* pagination */
.pagination-wrap {
  margin-top: var(--space-8);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .reader-info { flex-direction: column; align-items: flex-start; }
  .reader-emoji { font-size: 2.5rem; }
  .reader-cover-wrap { width: 104px; }
  .pdf-embed { height: 60vh; min-height: 400px; }
  .pdf-toolbar { flex-direction: column; align-items: flex-start; }
  .pdf-mobile-fallback { display: block; }
  .text-reader-card { padding: var(--space-6); }
}