:root {
  --bg-main: #090d16;
  --bg-surface: #0f172a;
  --bg-surface-elevated: #1e293b;
  --bg-input: #0b1120;
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(99, 102, 241, 0.5);
  --border-focus: #6366f1;
  --border-error: #ef4444;
  --text-primary: #ffffff;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --primary-accent: #6366f1;
  --primary-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
  --btn-primary-bg: #ffffff;
  --btn-primary-text: #090d16;
  --btn-primary-hover: #f1f5f9;
  --btn-secondary-bg: #1e293b;
  --btn-secondary-text: #f8fafc;
  --btn-secondary-border: rgba(255, 255, 255, 0.12);
  --btn-secondary-hover: #334155;
  --badge-bg: #1e293b;
  --badge-text: #93c5fd;
  --hero-badge-bg: rgba(99, 102, 241, 0.15);
  --hero-badge-text: #a5b4fc;
  --hero-badge-border: rgba(99, 102, 241, 0.35);
  --card-bg: #0f172a;
  --card-border: rgba(255, 255, 255, 0.07);
  --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.04);
  --hover-overlay: rgba(9, 13, 22, 0.75);
  --orb-1-color: rgba(99, 102, 241, 0.18);
  --orb-2-color: rgba(139, 92, 246, 0.14);
  --grid-color: rgba(255, 255, 255, 0.025);
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --radius-xl: 20px;
  --transition-smooth: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="bright"] {
  --bg-main: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f1f5f9;
  --bg-input: #ffffff;
  --border-subtle: rgba(15, 23, 42, 0.08);
  --border-hover: rgba(99, 102, 241, 0.45);
  --border-focus: #4f46e5;
  --border-error: #dc2626;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --primary-accent: #4f46e5;
  --primary-gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #db2777 100%);
  --btn-primary-bg: #0f172a;
  --btn-primary-text: #ffffff;
  --btn-primary-hover: #1e293b;
  --btn-secondary-bg: #ffffff;
  --btn-secondary-text: #0f172a;
  --btn-secondary-border: rgba(15, 23, 42, 0.12);
  --btn-secondary-hover: #f1f5f9;
  --badge-bg: #eef2ff;
  --badge-text: #4f46e5;
  --hero-badge-bg: #eef2ff;
  --hero-badge-text: #4338ca;
  --hero-badge-border: rgba(99, 102, 241, 0.25);
  --card-bg: #ffffff;
  --card-border: rgba(15, 23, 42, 0.08);
  --card-shadow: 0 10px 30px -10px rgba(15, 23, 42, 0.08), 0 1px 3px rgba(15, 23, 42, 0.05);
  --hover-overlay: rgba(15, 23, 42, 0.5);
  --orb-1-color: rgba(99, 102, 241, 0.08);
  --orb-2-color: rgba(192, 132, 252, 0.08);
  --grid-color: rgba(15, 23, 42, 0.03);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
  overflow-x: hidden;
}

/* Atmosphere Backgrounds */
.grid-pattern {
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(to right, var(--grid-color) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-color) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.bg-glow-orb {
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

.orb-1 {
  width: 650px;
  height: 650px;
  background: radial-gradient(circle, var(--orb-1-color) 0%, transparent 70%);
  top: -220px;
  left: 50%;
  transform: translateX(-50%);
}

.orb-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--orb-2-color) 0%, transparent 70%);
  bottom: -100px;
  right: -50px;
}

/* Panel System */
.glass-panel {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  box-shadow: var(--card-shadow);
}

.app-container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 2.25rem 1.5rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 2.75rem;
  position: relative;
  z-index: 1;
}

/* Header */
.app-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.9rem;
}

.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 760px;
  gap: 1rem;
  margin-bottom: 0.25rem;
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.4rem 0.95rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
  letter-spacing: 0.08em;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #10B981;
  box-shadow: 0 0 8px #10B981;
  flex-shrink: 0;
}

.brand-icon {
  width: 16px;
  height: 16px;
  color: #EF4444;
  flex-shrink: 0;
}

.brand-logo-img {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  flex-shrink: 0;
  display: block;
}

.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  padding: 0.4rem 0.9rem;
  border-radius: 9999px;
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  min-height: 36px;
  transition: var(--transition-smooth);
}

.theme-toggle-btn:hover {
  border-color: var(--border-hover);
  background: var(--bg-surface-elevated);
}

.theme-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.theme-icon svg {
  width: 15px;
  height: 15px;
}

.sun-icon {
  display: none;
}

.moon-icon {
  display: inline-flex;
}

[data-theme="bright"] .sun-icon {
  display: inline-flex;
}

[data-theme="bright"] .moon-icon {
  display: none;
}

.main-title {
  font-size: clamp(2.1rem, 5vw, 3.3rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  line-height: 1.15;
}

.gradient-text {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subtitle {
  font-size: clamp(0.92rem, 2vw, 1.05rem);
  color: var(--text-secondary);
  max-width: 580px;
  line-height: 1.55;
}

/* Main Content */
.main-content {
  display: flex;
  flex-direction: column;
  gap: 2.75rem;
}

/* Search Box & Inputs */
.input-section {
  max-width: 760px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.search-box-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  border-radius: var(--radius-xl);
  padding: 0.5rem;
  background: var(--bg-surface);
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  background-color: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 0 0.55rem 0 1rem;
  min-height: 58px;
  transition: var(--transition-smooth);
}

.input-wrapper:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25), 0 10px 25px -5px rgba(0, 0, 0, 0.4);
}

.input-wrapper.error {
  border-color: var(--border-error);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

.input-icon-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 0.65rem;
}

.search-icon {
  width: 20px;
  height: 20px;
  stroke: var(--text-muted);
  flex-shrink: 0;
}

.input-wrapper:focus-within .search-icon {
  stroke: var(--primary-accent);
}

.url-input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  outline: none;
  font-size: 0.975rem;
  font-weight: 500;
  color: var(--text-primary);
  height: 100%;
  min-height: 46px;
}

.url-input::placeholder {
  color: var(--text-muted);
}

.input-actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
}

.action-pill-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  min-height: 40px;
  transition: var(--transition-smooth);
}

.action-pill-btn svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.action-pill-btn:hover {
  border-color: var(--primary-accent);
  background: var(--primary-accent);
  color: #ffffff;
}

.clear-btn {
  display: none;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.35rem;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  min-width: 36px;
  min-height: 36px;
}

.clear-btn:hover {
  color: var(--text-primary);
  background: var(--bg-surface-elevated);
}

.clear-btn svg {
  width: 16px;
  height: 16px;
}

.clear-btn.visible {
  display: inline-flex;
}

.error-banner {
  display: none;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.825rem;
  color: var(--border-error);
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.25);
  padding: 0.65rem 0.95rem;
  border-radius: var(--radius-md);
}

.error-banner svg {
  width: 16px;
  height: 16px;
  stroke: var(--border-error);
  flex-shrink: 0;
}

.error-banner.visible {
  display: flex;
}

.sample-chips {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0 0.25rem;
  width: 100%;
}

.chips-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 600;
  white-space: nowrap;
}

.chips-scroll {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  overflow-x: auto;
  scrollbar-width: none;
}

.chips-scroll::-webkit-scrollbar {
  display: none;
}

.chip-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition-smooth);
  min-height: 32px;
}

.chip-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
  background: var(--bg-surface-elevated);
  transform: translateY(-1px);
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3.75rem 1.5rem;
  border-radius: var(--radius-xl);
  text-align: center;
}

.empty-icon-box {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.15rem;
  color: var(--primary-accent);
}

.empty-icon-box svg {
  width: 30px;
  height: 30px;
  stroke: currentColor;
}

.empty-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.empty-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  max-width: 440px;
  line-height: 1.55;
  margin-bottom: 1.5rem;
}

.feature-pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.55rem;
}

.feat-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  transition: var(--transition-smooth);
}

.feat-pill:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.check-icon {
  color: #10B981;
  font-weight: 800;
}

/* Video Meta Card & Quick Actions */
.video-meta-card {
  border-radius: var(--radius-xl);
  padding: 1.25rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
  border-color: rgba(99, 102, 241, 0.3);
}

@media (min-width: 768px) {
  .video-meta-card {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
  }
}

.video-meta-content {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  flex: 1;
  min-width: 0;
}

.video-meta-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #EF4444;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
  padding: 0.15rem 0.55rem;
  border-radius: 9999px;
  align-self: flex-start;
}

.yt-play-icon {
  width: 13px;
  height: 13px;
}

.video-meta-text {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.video-title {
  font-size: 1.12rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-author-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.84rem;
  color: var(--text-secondary);
  flex-wrap: wrap;
}

.video-author {
  font-weight: 700;
  color: var(--text-primary);
}

.author-dot {
  color: var(--text-muted);
}

.video-external-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--primary-accent);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.8125rem;
}

.video-external-link svg {
  width: 12px;
  height: 12px;
}

.video-external-link:hover {
  text-decoration: underline;
}

.video-meta-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  flex-shrink: 0;
}

.format-selector-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  padding: 0.3rem 0.5rem;
  border-radius: var(--radius-md);
}

.format-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.format-pills {
  display: inline-flex;
  gap: 0.25rem;
}

.format-pill {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.format-pill:hover {
  color: var(--text-primary);
  background: var(--bg-surface-elevated);
}

.format-pill.active {
  background: var(--primary-accent);
  color: #ffffff;
}

.btn-download-all {
  background: var(--primary-gradient);
  color: #ffffff;
  border: none;
  font-size: 0.875rem;
  font-weight: 700;
  padding: 0.7rem 1.35rem;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 18px rgba(99, 102, 241, 0.35);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-smooth);
  width: 100%;
  justify-content: center;
}

@media (min-width: 768px) {
  .btn-download-all {
    width: auto;
  }
}

.btn-download-all:hover {
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.5);
  transform: translateY(-1.5px);
  filter: brightness(1.05);
}

.btn-download-all svg {
  width: 16px;
  height: 16px;
}

/* Results Layout */
.results-layout {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

@media (min-width: 1024px) {
  .results-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 1.5rem;
    align-items: start;
  }
}

.hero-column {
  display: flex;
  flex-direction: column;
}

.variants-column {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Card System */
.card {
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
  transition: var(--transition-smooth);
}

.card:hover {
  border-color: var(--border-hover);
}

.card-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 1.2rem;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface-elevated);
  gap: 0.5rem;
}

.card-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  background: var(--badge-bg);
  color: var(--badge-text);
  border: 1px solid var(--border-subtle);
}

.hero-badge {
  background: var(--hero-badge-bg);
  color: var(--hero-badge-text);
  border-color: var(--hero-badge-border);
}

.badge-sparkle {
  color: #FBBF24;
}

.res-tag {
  font-size: 0.78rem;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-main);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-subtle);
}

.thumbnail-wrapper {
  position: relative;
  width: 100%;
  background: #000000;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.aspect-16-9 {
  aspect-ratio: 16 / 9;
}

.thumbnail-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.img-hover-overlay {
  position: absolute;
  inset: 0;
  background: var(--hover-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.thumbnail-wrapper:hover .img-hover-overlay {
  opacity: 1;
}

.preview-zoom-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.6rem 1.2rem;
  background: #ffffff;
  color: #090a0f;
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 9999px;
  font-weight: 700;
  font-size: 0.825rem;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
  transition: var(--transition-smooth);
}

.preview-zoom-btn svg {
  width: 15px;
  height: 15px;
}

.preview-zoom-btn:hover {
  background: #f1f5f9;
  transform: scale(1.04);
}

.card-details {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.hero-details {
  padding: 1.35rem;
}

.meta-info {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.res-title {
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--text-primary);
}

.res-subtitle {
  font-size: 0.825rem;
  color: var(--text-muted);
}

/* Variant Cards */
.variant-card {
  padding: 0.9rem 1rem;
}

.variant-content {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1.15rem;
  align-items: center;
}

@media (max-width: 520px) {
  .variant-content {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }
}

.variant-thumb-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: #000000;
  border: 1px solid var(--border-subtle);
}

.variant-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.variant-hover-overlay {
  position: absolute;
  inset: 0;
  background: var(--hover-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.variant-thumb-wrap:hover .variant-hover-overlay {
  opacity: 1;
}

.variant-zoom-btn {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  color: #090a0f;
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.variant-zoom-btn svg {
  width: 15px;
  height: 15px;
}

.variant-info {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  flex: 1;
  min-width: 0;
}

.variant-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.4rem;
}

.variant-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
}

.variant-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: block;
}

.action-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem;
}

/* Premium Buttons */
.btn {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  border-radius: var(--radius-md);
  font-size: 0.825rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition-smooth);
  padding: 0.45rem 0.95rem;
  white-space: nowrap;
}

.btn svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}

.btn-primary {
  background-color: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  border: 1px solid transparent;
}

.btn-primary:hover {
  background-color: var(--btn-primary-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--btn-secondary-bg);
  color: var(--btn-secondary-text);
  border: 1px solid var(--btn-secondary-border);
}

.btn-secondary:hover {
  background-color: var(--btn-secondary-hover);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

/* Sections */
.features-section, .faq-section {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.section-heading {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.section-title {
  font-size: clamp(1.35rem, 3.5vw, 1.95rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.15rem;
}

@media (min-width: 768px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.35rem;
  }
}

.feature-card {
  padding: 1.6rem 1.35rem;
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  transition: var(--transition-smooth);
}

.feature-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.feat-icon-box {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-accent);
}

.feat-icon-box svg {
  width: 22px;
  height: 22px;
}

.feat-card-title {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--text-primary);
}

.feat-card-desc {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* How-to Section */
.how-section {
  padding: 2.25rem 1.75rem;
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.how-header {
  text-align: center;
}

.how-title {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.how-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.steps-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.35rem;
}

@media (min-width: 768px) {
  .steps-row {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
}

.step-num {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-focus);
  color: var(--primary-accent);
  font-weight: 800;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.step-heading {
  font-size: 0.975rem;
  font-weight: 700;
  color: var(--text-primary);
}

.step-detail {
  font-size: 0.835rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Interactive FAQ Accordion */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 860px;
  width: 100%;
  margin: 0 auto;
}

.faq-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition-smooth);
}

.faq-item:hover {
  border-color: var(--border-hover);
}

.faq-item.active {
  border-color: rgba(99, 102, 241, 0.4);
}

.faq-question-btn {
  width: 100%;
  padding: 1.15rem 1.35rem;
  background: transparent;
  border: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
  text-align: left;
}

.faq-q-text {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.faq-chevron {
  width: 18px;
  height: 18px;
  color: var(--text-secondary);
  flex-shrink: 0;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.faq-item.active .faq-chevron {
  transform: rotate(180deg);
  color: var(--primary-accent);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s cubic-bezier(0.16, 1, 0.3, 1), padding 0.25s ease;
  padding: 0 1.35rem;
}

.faq-item.active .faq-answer {
  max-height: 200px;
  padding: 0 1.35rem 1.15rem;
}

.faq-answer p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.faq-answer code {
  background: var(--bg-surface-elevated);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.8125rem;
  color: var(--primary-accent);
}

/* Redesigned Minimalist Modern Footer */
.app-footer {
  margin-top: 1rem;
  padding-top: 3rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.footer-top-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 860px) {
  .footer-top-row {
    grid-template-columns: 1.2fr 2fr;
    gap: 3.5rem;
  }
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 360px;
}

.footer-system-status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: #10B981;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.2);
  padding: 0.3rem 0.75rem;
  border-radius: 9999px;
  align-self: flex-start;
}

.status-pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #10B981;
  box-shadow: 0 0 6px #10B981;
}

.footer-links-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 580px) {
  .footer-links-grid {
    grid-template-columns: 1fr 1fr 1.3fr;
    gap: 2rem;
  }
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.col-heading {
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-primary);
}

.footer-link-item {
  font-size: 0.835rem;
  color: var(--text-secondary);
  transition: var(--transition-smooth);
}

.contact-email-link {
  color: var(--primary-accent);
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  word-break: break-all;
}

.contact-email-link:hover {
  text-decoration: underline;
  color: #a5b4fc;
}

.footer-legal-text {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.footer-bottom-bar {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-subtle);
  gap: 1.15rem;
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom-bar {
    flex-direction: row;
    text-align: left;
  }
}

.copyright-text {
  font-size: 0.835rem;
  color: var(--text-secondary);
}

.copyright-text strong {
  color: var(--text-primary);
}

.footer-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  justify-content: center;
}

.footer-pill {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-xs);
}

/* Skeleton Loading */
.skeleton-card {
  border-color: var(--border-subtle);
}

.skeleton-media {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(90deg, var(--bg-surface) 25%, var(--bg-surface-elevated) 50%, var(--bg-surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

.skeleton-body {
  padding: 1.15rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.skeleton-line {
  height: 16px;
  background: var(--bg-surface-elevated);
  border-radius: var(--radius-sm);
}

.skeleton-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

.skeleton-btn {
  height: 40px;
  background: var(--bg-surface-elevated);
  border-radius: var(--radius-md);
}

.skeleton-compact-row {
  display: grid;
  grid-template-columns: 135px 1fr;
  gap: 1rem;
  padding: 0.85rem 0.95rem;
  align-items: center;
}

@media (max-width: 520px) {
  .skeleton-compact-row {
    grid-template-columns: 1fr;
  }
}

.skeleton-compact-thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--bg-surface-elevated);
  border-radius: var(--radius-sm);
}

.skeleton-compact-info {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

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

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(4, 7, 13, 0.85);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  overflow-y: auto;
}

.modal-content {
  border-radius: var(--radius-xl);
  max-width: min(92vw, 840px);
  width: fit-content;
  min-width: min(320px, 92vw);
  margin: auto;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.7);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.15rem;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface-elevated);
  gap: 0.5rem;
}

.modal-title-group {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.modal-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-header-actions {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.modal-crop-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-xs);
  font-size: 0.72rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.modal-crop-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.modal-crop-btn.active {
  background: var(--primary-accent);
  color: #ffffff;
  border-color: transparent;
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}

.modal-close-btn:hover {
  color: var(--text-primary);
  background: var(--bg-surface);
}

.modal-close-btn svg {
  width: 18px;
  height: 18px;
}

.modal-body {
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000000;
  position: relative;
  overflow: hidden;
}

.modal-img-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 100%;
  overflow: hidden;
}

.modal-img-wrap.crop-16-9 {
  aspect-ratio: 16 / 9;
  width: 100%;
  max-width: 800px;
}

.modal-img {
  max-width: 100%;
  max-height: 65vh;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

.modal-img-wrap.crop-16-9 .modal-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.65rem;
  padding: 0.75rem 1.15rem;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-surface-elevated);
}

@media (max-width: 480px) {
  .modal-footer {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.45rem;
  }
}

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  pointer-events: none;
  z-index: 300;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.35);
}

@media (max-width: 480px) {
  .toast {
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
    justify-content: center;
  }
}

.toast-icon {
  width: 17px;
  height: 17px;
  stroke: #10B981;
  flex-shrink: 0;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.hidden {
  display: none !important;
}