/* ============================================
   灵枢 - LingShu - 中文 AI Skill 中枢
   电影级质感 · 极简克制 · 未来感操作台
   ============================================ */

/* === CSS Variables === */
:root {
  --bg-deep: #0b0b10;
  --bg-surface: #12121a;
  --bg-card: rgba(22, 22, 34, 0.6);
  --bg-card-hover: rgba(28, 28, 44, 0.8);
  --bg-glass: rgba(255, 255, 255, 0.03);
  --bg-input: rgba(18, 18, 30, 0.8);

  --text-primary: #e8e6e3;
  --text-secondary: #9998a0;
  --text-tertiary: #5e5d68;
  --text-accent: #d4a574;
  --text-accent-dim: #a07850;

  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-card: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(212, 165, 116, 0.4);

  --accent: #d4a574;
  --accent-glow: rgba(212, 165, 116, 0.15);
  --accent-glow-strong: rgba(212, 165, 116, 0.3);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --font-title: "Noto Serif SC", "Source Han Serif SC", "STSong", "SimSun", serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", "Cascadia Code", monospace;

  --transition-fast: 0.2s cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-smooth: 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-spring: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-cinematic: 0.7s cubic-bezier(0.16, 1, 0.3, 1);

  --max-width: 880px;
  --nav-height: 64px;
}

/* === Reset & Base === */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

/* === Ambient Background === */
body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(180, 140, 100, 0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 60%, rgba(140, 160, 200, 0.03) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(100, 120, 160, 0.03) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
  animation: ambientDrift 20s ease-in-out infinite alternate;
}

@keyframes ambientDrift {
  0% { transform: translate(0, 0) rotate(0deg); }
  100% { transform: translate(2%, 3%) rotate(1deg); }
}

/* === Noise Texture Overlay === */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.015;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
}

/* === Main Container === */
.app-container {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
  min-height: 100vh;
}

/* === Navigation === */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
  padding: 0 4px;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(11, 11, 16, 0.7);
}

.nav-brand {
  font-family: var(--font-title);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: color var(--transition-fast);
}
.nav-brand:hover {
  color: var(--text-accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  letter-spacing: 0.02em;
}
.nav-link:hover {
  color: var(--text-primary);
  background: var(--bg-glass);
}
.nav-link.active {
  color: var(--text-accent);
  background: var(--accent-glow);
}

/* === Toggle Switch (高级模式) === */
.toggle-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 0.78rem;
  color: var(--text-tertiary);
  user-select: none;
}
.toggle-switch input {
  display: none;
}
.toggle-track {
  width: 36px;
  height: 20px;
  border-radius: 20px;
  background: rgba(255,255,255,0.08);
  transition: all var(--transition-fast);
  position: relative;
}
.toggle-track::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--text-secondary);
  transition: all var(--transition-fast);
}
.toggle-switch input:checked + .toggle-track {
  background: var(--accent-glow-strong);
}
.toggle-switch input:checked + .toggle-track::after {
  left: 18px;
  background: var(--accent);
}

/* === Hero Section === */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 80px 0 48px;
  text-align: center;
  position: relative;
}

.hero-title {
  font-family: var(--font-title);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.04em;
  line-height: 1.3;
  margin-bottom: 16px;
  animation: fadeUp 0.8s var(--transition-cinematic) both;
}
.hero-title .accent {
  color: var(--text-accent);
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  letter-spacing: 0.06em;
  margin-bottom: 40px;
  font-weight: 300;
  animation: fadeUp 0.8s var(--transition-cinematic) 0.15s both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

/* === Search Box === */
.search-wrapper {
  width: 100%;
  max-width: 620px;
  position: relative;
  animation: fadeUp 0.8s var(--transition-cinematic) 0.3s both;
}

.search-box {
  width: 100%;
  display: flex;
  align-items: center;
  background: var(--bg-input);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: 4px 4px 4px 24px;
  transition: all var(--transition-smooth);
  position: relative;
}
.search-box:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 4px var(--accent-glow), 0 0 40px var(--accent-glow);
}

.search-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1.05rem;
  padding: 14px 0;
  letter-spacing: 0.02em;
}
.search-input::placeholder {
  color: var(--text-tertiary);
}

.search-btn {
  background: linear-gradient(135deg, var(--accent), var(--text-accent-dim));
  border: none;
  color: var(--bg-deep);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: calc(var(--radius-xl) - 4px);
  cursor: pointer;
  transition: all var(--transition-smooth);
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.search-btn:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 24px var(--accent-glow-strong);
  transform: translateY(-1px);
}
.search-btn:active {
  transform: translateY(0);
}

/* === Search Placeholder Carousel === */
.search-placeholder-carousel {
  position: absolute;
  top: 50%;
  left: 24px;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--text-tertiary);
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  opacity: 0;
  transition: opacity 0.5s;
}
.search-placeholder-carousel.visible {
  opacity: 1;
}

/* === Entry Buttons === */
.entry-actions {
  display: flex;
  gap: 16px;
  margin-top: 28px;
  animation: fadeUp 0.8s var(--transition-cinematic) 0.45s both;
  flex-wrap: wrap;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  cursor: pointer;
  border: none;
  transition: all var(--transition-smooth);
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-deep);
}
.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 4px 24px var(--accent-glow-strong);
}

.btn-outline {
  background: var(--bg-glass);
  color: var(--text-primary);
  border: 1px solid var(--border-card);
}
.btn-outline:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-focus);
}

.btn-ghost {
  background: none;
  color: var(--text-secondary);
  font-size: 0.85rem;
  padding: 8px 16px;
}
.btn-ghost:hover {
  color: var(--text-accent);
}

/* === Section === */
.section {
  padding: 64px 0;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.section-title {
  font-family: var(--font-title);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.04em;
}

.section-subtitle {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  letter-spacing: 0.05em;
}

/* === Card Grid === */
.card-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* === Skill Card === */
.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  cursor: pointer;
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.skill-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(212, 165, 116, 0.04) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-smooth);
}
.skill-card:hover {
  border-color: var(--border-focus);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), 0 0 0 1px var(--border-focus);
}
.skill-card:hover::before {
  opacity: 1;
}

.skill-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 8px;
}

.skill-card-title {
  font-family: var(--font-title);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.03em;
  margin-bottom: 4px;
}

.skill-card-summary {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
}

.skill-card-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  background: rgba(255,255,255,0.04);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

.tag.beginner {
  background: rgba(100, 200, 140, 0.1);
  color: #8ccca0;
  border-color: rgba(100, 200, 140, 0.2);
}
.tag.design {
  background: rgba(180, 140, 200, 0.1);
  color: #c8a8d8;
  border-color: rgba(180, 140, 200, 0.2);
}
.tag.creator {
  background: rgba(200, 160, 100, 0.1);
  color: #d4b878;
  border-color: rgba(200, 160, 100, 0.2);
}
.tag.advanced {
  background: rgba(200, 130, 100, 0.1);
  color: #d49878;
  border-color: rgba(200, 130, 100, 0.2);
}

.skill-card-actions {
  display: flex;
  gap: 8px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
}

/* === Small Action Buttons === */
.btn-sm {
  padding: 6px 16px;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-card);
  background: var(--bg-glass);
  color: var(--text-secondary);
  cursor: pointer;
  font-family: var(--font-body);
  letter-spacing: 0.03em;
  transition: all var(--transition-fast);
}
.btn-sm:hover {
  color: var(--text-primary);
  border-color: var(--border-focus);
  background: var(--bg-card-hover);
}
.btn-sm.primary {
  background: var(--accent);
  color: var(--bg-deep);
  border: none;
  font-weight: 600;
}
.btn-sm.primary:hover {
  filter: brightness(1.15);
  box-shadow: 0 0 16px var(--accent-glow-strong);
}

/* === Scene Entry Grid === */
.scene-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 24px;
}

.scene-entry {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px 16px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-smooth);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.scene-entry:hover {
  border-color: var(--border-focus);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.scene-entry-icon {
  font-size: 1.6rem;
  margin-bottom: 10px;
  display: block;
}
.scene-entry-label {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: 0.03em;
}

/* === Today's Picks === */
.today-picks {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.pick-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  cursor: pointer;
  transition: all var(--transition-smooth);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.pick-card:hover {
  border-color: var(--border-focus);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}
.pick-card-title {
  font-family: var(--font-title);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.pick-card-summary {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* === Detail Panel (Slide-in) === */
.detail-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-smooth);
}
.detail-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.detail-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  max-width: 640px;
  height: 100vh;
  background: var(--bg-surface);
  border-left: 1px solid var(--border-card);
  z-index: 201;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--transition-cinematic);
  padding: 40px 32px 60px;
  box-shadow: -20px 0 60px rgba(0,0,0,0.5);
}
.detail-panel.active {
  transform: translateX(0);
}

.detail-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border-card);
  background: var(--bg-glass);
  color: var(--text-secondary);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}
.detail-close:hover {
  color: var(--text-primary);
  border-color: var(--text-secondary);
}

.detail-title {
  font-family: var(--font-title);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}
.detail-summary {
  font-size: 1.05rem;
  color: var(--text-accent);
  margin-bottom: 28px;
  line-height: 1.6;
}
.detail-section {
  margin-bottom: 24px;
}
.detail-section-title {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-tertiary);
  margin-bottom: 10px;
  font-weight: 600;
}
.detail-section-content {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  border: 1px solid var(--border-subtle);
}

.detail-actions {
  display: flex;
  gap: 10px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
}

/* === Advanced Drawer === */
.advanced-drawer {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-top: 16px;
  overflow: hidden;
  transition: all var(--transition-smooth);
}
.advanced-trigger {
  width: 100%;
  padding: 14px 20px;
  background: none;
  border: none;
  color: var(--text-tertiary);
  font-family: var(--font-body);
  font-size: 0.82rem;
  cursor: pointer;
  text-align: left;
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: color var(--transition-fast);
}
.advanced-trigger:hover {
  color: var(--text-secondary);
}
.advanced-trigger::after {
  content: '▸';
  transition: transform var(--transition-smooth);
  font-size: 0.7rem;
}
.advanced-trigger.open::after {
  transform: rotate(90deg);
}
.advanced-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-smooth);
}
.advanced-content.open {
  max-height: 2000px;
}
.advanced-inner {
  padding: 0 20px 20px;
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-all;
}

/* === Quiz Flow === */
.quiz-container {
  max-width: 540px;
  margin: 40px auto;
  text-align: center;
}

.quiz-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  animation: fadeUpSlide 0.5s var(--transition-smooth) both;
}

@keyframes fadeUpSlide {
  from { opacity: 0; transform: translateY(16px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.quiz-question {
  font-family: var(--font-title);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 28px;
  letter-spacing: 0.03em;
}

.quiz-progress {
  display: flex;
  gap: 6px;
  justify-content: center;
  margin-bottom: 32px;
}

.quiz-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-tertiary);
  transition: all var(--transition-smooth);
}
.quiz-dot.done {
  background: var(--accent);
}
.quiz-dot.current {
  background: var(--text-accent);
  box-shadow: 0 0 8px var(--accent-glow);
}

.quiz-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.quiz-option {
  background: var(--bg-glass);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
  letter-spacing: 0.03em;
}
.quiz-option:hover {
  color: var(--text-primary);
  border-color: var(--border-focus);
  background: var(--bg-card-hover);
  transform: translateX(4px);
}
.quiz-option.selected {
  color: var(--text-accent);
  border-color: var(--border-focus);
  background: var(--accent-glow);
}

/* === Publisher Flow === */
.publisher-container {
  max-width: 640px;
  margin: 40px auto;
}

.publisher-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.publisher-title {
  font-family: var(--font-title);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}

.publisher-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 28px;
}

.publisher-textarea {
  width: 100%;
  min-height: 160px;
  background: var(--bg-input);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 16px;
  resize: vertical;
  line-height: 1.6;
  transition: all var(--transition-smooth);
}
.publisher-textarea:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 4px var(--accent-glow);
}
.publisher-textarea::placeholder {
  color: var(--text-tertiary);
  font-family: var(--font-body);
}

.publisher-methods {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.method-btn {
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid var(--border-card);
  background: var(--bg-glass);
  color: var(--text-secondary);
  font-size: 0.78rem;
  cursor: pointer;
  font-family: var(--font-body);
  transition: all var(--transition-fast);
}
.method-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-focus);
}

.publisher-preview {
  margin-top: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  animation: fadeUpSlide 0.5s var(--transition-smooth) both;
}

/* === Knowledge Base === */
.kb-filters {
  display: flex;
  gap: 8px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.filter-pill {
  padding: 8px 18px;
  border-radius: 20px;
  border: 1px solid var(--border-card);
  background: var(--bg-glass);
  color: var(--text-secondary);
  font-size: 0.82rem;
  cursor: pointer;
  font-family: var(--font-body);
  letter-spacing: 0.03em;
  transition: all var(--transition-fast);
}
.filter-pill:hover {
  color: var(--text-primary);
  border-color: var(--border-focus);
}
.filter-pill.active {
  background: var(--accent-glow);
  color: var(--text-accent);
  border-color: var(--border-focus);
}

/* === Toast === */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-card);
  border: 1px solid var(--border-focus);
  border-radius: var(--radius-md);
  padding: 14px 24px;
  color: var(--text-primary);
  font-size: 0.88rem;
  z-index: 300;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: transform var(--transition-spring);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  letter-spacing: 0.03em;
}
.toast.show {
  transform: translateX(-50%) translateY(0);
}

/* === Favorites Page === */
.favorites-actions {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 24px;
}

/* === Empty State === */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-tertiary);
}
.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  display: block;
}
.empty-state-text {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

/* === Divider === */
.divider {
  border: none;
  border-top: 1px solid var(--border-subtle);
  margin: 48px 0;
}

/* === Footer === */
.footer {
  text-align: center;
  padding: 40px 0;
  border-top: 1px solid var(--border-subtle);
  margin-top: 60px;
}
.footer-text {
  font-size: 0.78rem;
  color: var(--text-tertiary);
  letter-spacing: 0.05em;
}
.footer-brand {
  font-family: var(--font-title);
  color: var(--text-secondary);
  font-weight: 600;
}

/* === Scrollbar === */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.08);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255,255,255,0.15);
}

/* === Selection === */
::selection {
  background: var(--accent-glow-strong);
  color: var(--text-primary);
}

/* === Responsive === */
@media (max-width: 768px) {
  .app-container {
    padding: 0 16px;
  }
  .hero {
    min-height: 50vh;
    padding: 60px 0 32px;
  }
  .hero-title {
    font-size: 1.8rem;
  }
  .search-box {
    padding: 4px 4px 4px 16px;
  }
  .search-input {
    font-size: 0.9rem;
  }
  .search-btn {
    font-size: 0.82rem;
    padding: 10px 20px;
  }
  .scene-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .today-picks {
    grid-template-columns: 1fr;
  }
  .detail-panel {
    max-width: 100%;
  }
  .nav-link {
    font-size: 0.75rem;
    padding: 6px 10px;
  }
  .btn {
    font-size: 0.82rem;
    padding: 10px 20px;
  }
}

@media (max-width: 480px) {
  .nav-brand {
    font-size: 1.1rem;
  }
  .nav-links {
    gap: 2px;
  }
  .nav-link {
    font-size: 0.7rem;
    padding: 4px 8px;
  }
  .entry-actions {
    flex-direction: column;
    align-items: center;
  }
  .quiz-card, .publisher-card {
    padding: 24px 20px;
  }
}