:root {
  --color-bg:       #0f172a;
  --color-surface:  #1e293b;
  --color-surface2: #273548;
  --color-border:   #334155;
  --color-primary:  #6366f1;
  --color-primary-hover: #818cf8;
  --color-accent:   #22d3ee;
  --color-success:  #34d399;
  --color-danger:   #f87171;
  --color-warn:     #fbbf24;
  --color-text:     #f8fafc;
  --color-text-dim: #94a3b8;
  --color-text-muted: #64748b;

  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  16px;
  --radius-xl:  24px;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.3);
  --shadow-md:  0 4px 16px rgba(0,0,0,.4);
  --shadow-lg:  0 8px 32px rgba(0,0,0,.5);
  --shadow-glow: 0 0 40px rgba(99,102,241,.15);

  --color-header-bg: rgba(15,23,42,.85);

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --transition: 180ms ease;
  --max-width:  960px;
}

[data-theme="light"] {
  --color-bg:       #f8fafc;
  --color-surface:  #ffffff;
  --color-surface2: #f1f5f9;
  --color-border:   #cbd5e1;
  --color-primary:  #4f46e5;
  --color-primary-hover: #6366f1;
  --color-accent:   #06b6d4;
  --color-success:  #10b981;
  --color-danger:   #ef4444;
  --color-warn:     #f59e0b;
  --color-text:     #0f172a;
  --color-text-dim: #475569;
  --color-text-muted: #94a3b8;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.06);
  --shadow-md:  0 4px 16px rgba(0,0,0,.08);
  --shadow-lg:  0 8px 32px rgba(0,0,0,.1);
  --shadow-glow: 0 0 40px rgba(79,70,229,.1);

  --color-header-bg: rgba(248,250,252,.85);
}

[data-theme] body,
[data-theme] .header,
[data-theme] .upload-zone,
[data-theme] .file-card,
[data-theme] .format-btn,
[data-theme] .reso-btn,
[data-theme] .progress-card,
[data-theme] .result-card,
[data-theme] .toast,
[data-theme] .partner-link,
[data-theme] input,
[data-theme] select,
[data-theme] .field-input {
  transition: background-color 300ms ease, border-color 300ms ease, color 300ms ease, box-shadow 300ms ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select { font: inherit; }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -.01em;
}

.logo-icon {
  flex-shrink: 0;
}

.nav {
  display: flex;
  gap: 24px;
}

.nav-link {
  font-size: .9rem;
  color: var(--color-text-dim);
  font-weight: 500;
  transition: color var(--transition);
}
.nav-link:hover { color: var(--color-text); }

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--color-surface2);
  border: 1px solid var(--color-border);
  color: var(--color-text-dim);
  cursor: pointer;
  transition: all var(--transition);
  flex-shrink: 0;
}
.theme-toggle:hover {
  color: var(--color-text);
  border-color: var(--color-primary);
}
.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
  width: 18px;
  height: 18px;
}
[data-theme="light"] .theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun  { display: none; }

.hero {
  padding: 60px 0 40px;
}

.hero-content {
  text-align: center;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.02em;
  margin-bottom: 12px;
}

.hero-highlight {
  display: block;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-dim);
  max-width: 520px;
  margin: 0 auto 32px;
}

.upload-wrapper {
  max-width: 560px;
  margin: 0 auto;
}

.upload-zone {
  background: var(--color-surface);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
  position: relative;
  outline: none;
}
.upload-zone:hover,
.upload-zone:focus-visible {
  border-color: var(--color-primary);
  background: rgba(99,102,241,.06);
  box-shadow: var(--shadow-glow);
}
.upload-zone.drag-over {
  border-color: var(--color-accent);
  background: rgba(34,211,238,.08);
  box-shadow: 0 0 48px rgba(34,211,238,.2);
}
.upload-zone.drag-over .upload-icon svg circle,
.upload-zone.drag-over .upload-icon svg path {
  stroke: var(--color-accent);
}

.upload-icon {
  margin-bottom: 16px;
  display: inline-block;
}
.upload-icon svg circle,
.upload-icon svg path {
  transition: stroke var(--transition);
}

.upload-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.upload-hint {
  color: var(--color-text-dim);
  margin-bottom: 12px;
  font-size: .95rem;
}

.upload-browse {
  color: var(--color-primary);
  font-weight: 600;
}

.upload-formats {
  font-size: .8rem;
  color: var(--color-text-muted);
}

.file-input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.privacy-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
  color: var(--color-accent);
  font-size: .8rem;
  font-weight: 500;
}

.file-card {
  max-width: 560px;
  margin: 16px auto 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 18px;
}

.file-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.file-icon { flex-shrink: 0; }

.file-details {
  flex: 1;
  min-width: 0;
}

.file-name {
  display: block;
  font-weight: 600;
  font-size: .9rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-meta {
  font-size: .78rem;
  color: var(--color-text-dim);
}

.file-remove {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-dim);
  transition: background var(--transition), color var(--transition);
}
.file-remove:hover {
  background: rgba(248,113,113,.15);
  color: var(--color-danger);
}

.settings {
  padding: 0 0 48px;
}

.setting-group {
  margin-bottom: 28px;
}

.setting-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.setting-label {
  display: block;
  font-size: .9rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: .05em;
}
.setting-header .setting-label { margin-bottom: 0; }

.quality-badge {
  font-size: .78rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(99,102,241,.15);
  color: var(--color-primary-hover);
  transition: all var(--transition);
}

.format-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 10px;
}

.format-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 14px 10px;
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}
.format-btn:hover {
  border-color: var(--color-primary);
  background: rgba(99,102,241,.06);
}
.format-btn.active {
  border-color: var(--color-primary);
  background: rgba(99,102,241,.12);
  box-shadow: 0 0 0 1px var(--color-primary);
}

.format-ext {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: .02em;
}

.format-desc {
  font-size: .72rem;
  color: var(--color-text-muted);
}

.slider-wrapper {
  display: flex;
  align-items: center;
  gap: 14px;
}

.slider-end {
  flex-shrink: 0;
  font-size: .75rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.quality-slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  border-radius: 3px;
  background: var(--color-border);
  outline: none;
}
.quality-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-bg);
  box-shadow: 0 0 0 2px var(--color-primary);
  cursor: pointer;
  transition: box-shadow var(--transition);
}
.quality-slider::-webkit-slider-thumb:hover {
  box-shadow: 0 0 0 4px var(--color-primary);
}
.quality-slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-bg);
  box-shadow: 0 0 0 2px var(--color-primary);
  cursor: pointer;
}

.resolution-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.reso-btn {
  padding: 10px 18px;
  font-size: .85rem;
  font-weight: 600;
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.reso-btn:hover {
  border-color: var(--color-primary);
}
.reso-btn.active {
  border-color: var(--color-primary);
  background: rgba(99,102,241,.12);
  color: var(--color-primary-hover);
}

.advanced-toggle {
  margin-bottom: 28px;
}

.advanced-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: .85rem;
  font-weight: 600;
  color: var(--color-text-dim);
  padding: 12px 0;
  cursor: pointer;
  list-style: none;
  border-top: 1px solid var(--color-border);
  user-select: none;
}
.advanced-summary::-webkit-details-marker { display: none; }
.advanced-summary:hover { color: var(--color-text); }

.advanced-chevron {
  transition: transform var(--transition);
}
.advanced-toggle[open] .advanced-chevron {
  transform: rotate(180deg);
}

.advanced-content {
  padding-bottom: 8px;
}

.advanced-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.advanced-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field-label {
  font-size: .78rem;
  font-weight: 600;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: .04em;
}

.field-input {
  padding: 10px 14px;
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: .9rem;
  transition: border-color var(--transition);
  outline: none;
}
.field-input:focus {
  border-color: var(--color-primary);
}
.field-input::placeholder {
  color: var(--color-text-muted);
}

.field-input option {
  background: var(--color-surface);
}

.btn-convert {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 16px 24px;
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary), #8b5cf6);
  border-radius: var(--radius-md);
  transition: all var(--transition);
  box-shadow: 0 4px 20px rgba(99,102,241,.35);
}
.btn-convert:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 28px rgba(99,102,241,.45);
}
.btn-convert:active {
  transform: translateY(0);
}
.btn-convert:disabled {
  opacity: .5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.progress-section {
  padding: 0 0 48px;
}

.progress-card {
  max-width: 560px;
  margin: 0 auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
}

.progress-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.progress-title {
  font-size: 1rem;
  font-weight: 600;
}

.progress-percent {
  font-size: .9rem;
  font-weight: 700;
  color: var(--color-primary-hover);
  font-variant-numeric: tabular-nums;
}

.progress-bar-track {
  height: 8px;
  border-radius: 4px;
  background: var(--color-surface2);
  overflow: hidden;
  margin-bottom: 12px;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  width: 0%;
  transition: width 300ms ease;
}

.progress-note {
  font-size: .78rem;
  color: var(--color-text-muted);
}

.btn-cancel {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  padding: 8px 16px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--color-text-dim);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.btn-cancel:hover {
  color: var(--color-danger);
  border-color: var(--color-danger);
  background: rgba(248,113,113,.08);
}

.result-section {
  padding: 0 0 48px;
}

.result-card {
  max-width: 480px;
  margin: 0 auto;
  text-align: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
}

.result-icon {
  margin-bottom: 16px;
  display: inline-block;
}

.result-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.result-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-label {
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--color-text-muted);
}

.stat-value {
  font-size: 1.1rem;
  font-weight: 700;
}

.stat-arrow {
  color: var(--color-primary-hover);
  flex-shrink: 0;
}

.stat-savings {
  width: 100%;
  margin-top: 8px;
}

.stat-savings .savings-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(34,211,238,.12);
  color: var(--color-accent);
  border-radius: 999px;
  font-size: .85rem;
  font-weight: 700;
}

.result-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}

.btn-download {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  max-width: 260px;
  padding: 14px 24px;
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--color-accent), #2dd4bf);
  border-radius: var(--radius-md);
  transition: all var(--transition);
  box-shadow: 0 4px 20px rgba(34,211,238,.3);
}
.btn-download:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 28px rgba(34,211,238,.4);
}

.btn-reset {
  font-size: .85rem;
  font-weight: 500;
  color: var(--color-text-dim);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.btn-reset:hover {
  color: var(--color-text);
  background: rgba(255,255,255,.05);
}

.how {
  padding: 60px 0 80px;
  border-top: 1px solid var(--color-border);
}

.section-title {
  text-align: center;
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 40px;
}

.steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  max-width: 760px;
  margin: 0 auto;
}

.step {
  flex: 1;
  text-align: center;
  padding: 0 12px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), #8b5cf6);
  color: #fff;
  font-weight: 800;
  font-size: 1.15rem;
  margin-bottom: 16px;
}

.step-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.step-desc {
  font-size: .85rem;
  color: var(--color-text-dim);
  line-height: 1.5;
}

.step-divider {
  flex-shrink: 0;
  width: 40px;
  height: 2px;
  background: var(--color-border);
  margin-top: 21px; 
}

.faq {
  padding: 0 0 60px;
}

.faq-list {
  max-width: 680px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: color var(--transition);
}
.faq-question::-webkit-details-marker { display: none; }
.faq-question:hover { color: var(--color-primary-hover); }

.faq-question::after {
  content: '';
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-left: 12px;
  background: currentColor;
  mask: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path d='M4 6l4 4 4-4' stroke='black' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/></svg>") center/contain no-repeat;
  -webkit-mask: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path d='M4 6l4 4 4-4' stroke='black' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/></svg>") center/contain no-repeat;
  transition: transform var(--transition);
  opacity: .5;
}

.faq-item[open] .faq-question::after {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 0 18px;
  font-size: .88rem;
  color: var(--color-text-dim);
  line-height: 1.7;
}
.faq-answer strong {
  color: var(--color-text);
}

.footer {
  margin-top: auto;
  border-top: 1px solid var(--color-border);
  padding: 36px 0 28px;
}

.footer-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  margin-bottom: 20px;
}

.footer-info {
  flex: 1;
  min-width: 260px;
}

.footer-links {
  display: flex;
  gap: 20px;
  flex-shrink: 0;
}

.footer-link {
  font-size: .82rem;
  color: var(--color-text-dim);
  font-weight: 500;
  transition: color var(--transition);
}
.footer-link:hover {
  color: var(--color-primary-hover);
}

.footer-text {
  font-size: .82rem;
  color: var(--color-text-dim);
  line-height: 1.6;
}
.footer-text strong {
  color: var(--color-text);
}
.footer-text a {
  color: var(--color-primary-hover);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer-partners {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--color-border);
  margin-top: 8px;
}

.footer-partners-label {
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.partner-link {
  padding: 6px 12px;
  font-size: .82rem;
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-surface2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.partner-link:hover {
  border-color: var(--color-primary);
  background: rgba(99,102,241,.08);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

.footer-privacy {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .78rem;
  color: var(--color-accent);
  font-weight: 500;
}

.footer-copy {
  font-size: .72rem;
  color: var(--color-text-muted);
}

.toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: .85rem;
  font-weight: 500;
  animation: toastIn 300ms ease;
  max-width: 380px;
}
.toast.error {
  border-color: rgba(248,113,113,.4);
}
.toast.error .toast-icon { color: var(--color-danger); }
.toast.success .toast-icon { color: var(--color-success); }
.toast.info .toast-icon { color: var(--color-primary-hover); }

.toast-icon { flex-shrink: 0; }

@keyframes toastIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (max-width: 1024px) {
  .steps {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }
  .step-divider {
    width: 2px;
    height: 32px;
    margin-top: 0;
  }
  .step {
    max-width: 340px;
  }
}

@media (max-width: 640px) {
  .header .container {
    height: 56px;
  }
  .logo-text {
    font-size: 1.1rem;
  }
  .nav {
    gap: 16px;
  }
  .nav-link {
    font-size: .82rem;
  }

  .hero {
    padding: 36px 0 28px;
  }
  .hero-title {
    font-size: 1.6rem;
  }
  .hero-subtitle {
    font-size: .95rem;
    margin-bottom: 24px;
  }

  .upload-zone {
    padding: 32px 16px;
  }
  .upload-title {
    font-size: 1.1rem;
  }

  .format-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }
  .format-btn {
    padding: 12px 8px;
  }
  .format-ext {
    font-size: .95rem;
  }

  .resolution-grid {
    gap: 8px;
  }
  .reso-btn {
    padding: 8px 14px;
    font-size: .8rem;
  }

  .slider-wrapper {
    gap: 8px;
  }
  .slider-end {
    font-size: .68rem;
  }

  .advanced-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .progress-card {
    padding: 20px 16px;
  }

  .result-card {
    padding: 24px 16px;
  }
  .result-stats {
    gap: 8px;
  }

  .faq-question {
    font-size: .88rem;
    padding: 14px 0;
  }
  .faq-answer {
    font-size: .82rem;
  }

  .footer-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .footer-links {
    gap: 14px;
  }
  .footer-partners {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .toast-container {
    left: 16px;
    right: 16px;
    bottom: 16px;
  }
  .toast {
    max-width: none;
  }
}

@media (max-width: 380px) {
  .format-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .resolution-grid {
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}