/* ========================================
   YT-DLP Studio Website
   Modern, responsive landing page
   ======================================== */

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

:root {
  /* Colors */
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: #1a2232;
  --bg-card-hover: #1f2a3d;
  --bg-elevated: #243049;
  --surface: #15202e;

  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-glow: rgba(59, 130, 246, 0.25);

  --blue: #3b82f6;
  --purple: #8b5cf6;
  --green: #10b981;
  --orange: #f59e0b;
  --cyan: #06b6d4;
  --pink: #ec4899;
  --yellow: #eab308;
  --red: #ef4444;
  --teal: #14b8a6;

  --border: rgba(255, 255, 255, 0.06);
  --border-light: rgba(255, 255, 255, 0.1);

  /* Spacing */
  --section-padding: 7rem 0;
  --container-max: 1200px;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-sm: 8px;

  /* Transitions */
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

body > *:not(.footer):not(.back-to-top):not(.nav-overlay):not(.beta-banner):not(.navbar) {
  flex-shrink: 0;
}

.footer {
  margin-top: auto;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--accent-hover);
}

/* ---------- Container ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---------- Section Header ---------- */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 4rem;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  background: var(--accent-glow);
  padding: 0.35rem 1rem;
  border-radius: 50px;
  margin-bottom: 1.25rem;
}

.section-header h2 {
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section-header p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  padding: 0.75rem 1.75rem;
  box-shadow: 0 0 20px var(--accent-glow);
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 30px var(--accent-glow);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  padding: 0.75rem 1.75rem;
  border: 1.5px solid var(--border-light);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--text-muted);
  color: #fff;
  transform: translateY(-2px);
}

.btn-lg {
  padding: 0.9rem 2rem;
  font-size: 1.05rem;
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1rem 0;
  transition: all var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 0.6rem 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-primary);
}

.nav-logo:hover {
  color: var(--text-primary);
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-links a {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.nav-links a:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.nav-cta {
  background: var(--accent) !important;
  color: #fff !important;
  padding: 0.5rem 1.25rem !important;
  border-radius: var(--radius) !important;
}

.nav-cta:hover {
  background: var(--accent-hover) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ========================================
   Hero
   ======================================== */
.hero {
  position: relative;
  padding: 4rem 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
}

.hero-bg-shapes {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
}

.shape-1 {
  width: 600px;
  height: 600px;
  background: var(--blue);
  top: -200px;
  right: -100px;
}

.shape-2 {
  width: 500px;
  height: 500px;
  background: var(--purple);
  bottom: -150px;
  left: -100px;
}

.shape-3 {
  width: 300px;
  height: 300px;
  background: var(--cyan);
  top: 40%;
  left: 50%;
}

.hero-content {
  position: relative;
  text-align: center;
  margin-bottom: 3rem;
}

.hero-badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  border: 1px solid rgba(59, 130, 246, 0.3);
  background: rgba(59, 130, 246, 0.08);
  padding: 0.4rem 1.25rem;
  border-radius: 50px;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(2.75rem, 7vw, 4.5rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.gradient-text {
  background: linear-gradient(135deg, var(--blue), var(--cyan), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2.5vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2rem;
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.hero-stats {
  display: inline-flex;
  align-items: center;
  gap: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 1rem 2.5rem;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-number {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-divider {
  width: 1px;
  height: 32px;
  background: var(--border-light);
}

/* Hero App Preview */
.hero-preview {
  position: relative;
  max-width: 750px;
  margin: 0 auto;
  padding: 0 1rem;
}

.app-window {
  background: #1e1e2e;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
  box-shadow:
    0 25px 50px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.05);
}

.window-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0.75rem 1rem;
  background: #16161e;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }

.window-title {
  margin-left: auto;
  margin-right: auto;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.window-body {
  padding: 1.25rem;
}

.mock-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.mock-tab {
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  cursor: default;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.mock-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

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

.mock-url-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.mock-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  min-width: 42px;
}

.mock-input {
  flex: 1;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-family: monospace;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mock-btn-sm {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-secondary);
  padding: 0.45rem 0.75rem;
  border-radius: 6px;
  font-size: 0.75rem;
  cursor: default;
}

.mock-row {
  display: flex;
  gap: 1rem;
}

.mock-select-group {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.mock-select {
  flex: 1;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  padding: 0.45rem 0.75rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.mock-options {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.mock-check {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
  cursor: default;
}

.check-box {
  width: 14px;
  height: 14px;
  border: 1.5px solid rgba(255, 255, 255, 0.2);
  border-radius: 3px;
  display: inline-block;
}

.check-box.checked {
  background: var(--accent);
  border-color: var(--accent);
  position: relative;
}

.check-box.checked::after {
  content: '';
  position: absolute;
  left: 3px;
  top: 1px;
  width: 5px;
  height: 8px;
  border: solid #fff;
  border-width: 0 1.5px 1.5px 0;
  transform: rotate(45deg);
}

.mock-progress-area {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.mock-progress-bar {
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  overflow: hidden;
}

.mock-progress-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--cyan));
  border-radius: 10px;
  transition: width 0.3s linear;
}

.mock-progress-stats {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--text-muted);
}

.mock-buttons {
  display: flex;
  gap: 0.5rem;
}

.mock-btn {
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  border: none;
  cursor: default;
}

.mock-btn.primary {
  background: var(--accent);
  color: #fff;
}

.mock-btn.secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* ========================================
   Sites Bar
   ======================================== */
.sites-bar {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
  overflow: hidden;
}

.sites-label {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.25rem;
}

.sites-scroll {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
}

.sites-track {
  display: flex;
  gap: 1.25rem;
  align-items: center;
  animation: scrollSites 30s linear infinite;
  width: max-content;
}

.site-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
  transition: color var(--transition);
}

.site-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-muted);
  opacity: 0.3;
  flex-shrink: 0;
}

@keyframes scrollSites {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ========================================
   Features Grid
   ======================================== */
.features {
  padding: var(--section-padding);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition);
  opacity: 0;
  transform: translateY(20px);
}

.feature-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.feature-card:hover {
  border-color: var(--border-light);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.feature-icon.blue { background: rgba(59, 130, 246, 0.12); color: var(--blue); }
.feature-icon.purple { background: rgba(139, 92, 246, 0.12); color: var(--purple); }
.feature-icon.green { background: rgba(16, 185, 129, 0.12); color: var(--green); }
.feature-icon.orange { background: rgba(245, 158, 11, 0.12); color: var(--orange); }
.feature-icon.cyan { background: rgba(6, 182, 212, 0.12); color: var(--cyan); }
.feature-icon.pink { background: rgba(236, 72, 153, 0.12); color: var(--pink); }
.feature-icon.yellow { background: rgba(234, 179, 8, 0.12); color: var(--yellow); }
.feature-icon.red { background: rgba(239, 68, 68, 0.12); color: var(--red); }
.feature-icon.teal { background: rgba(20, 184, 166, 0.12); color: var(--teal); }

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ========================================
   How It Works
   ======================================== */
.how-it-works {
  padding: var(--section-padding);
  background: var(--bg-secondary);
}

.steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  max-width: 1000px;
  margin: 0 auto;
}

.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  flex: 1;
  padding: 0 1.5rem;
  opacity: 0;
  transform: translateY(20px);
}

.step.visible {
  opacity: 1;
  transform: translateY(0);
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 1.25rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  box-shadow: 0 0 30px var(--accent-glow);
}

.step-connector {
  width: 80px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--border));
  margin-top: 28px;
  flex-shrink: 0;
}

.step-content h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.step-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ========================================
   Formats
   ======================================== */
.formats {
  padding: var(--section-padding);
}

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

.format-column {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  opacity: 0;
  transform: translateY(20px);
}

.format-column.visible {
  opacity: 1;
  transform: translateY(0);
}

.format-column-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.format-column-header.video { color: var(--blue); }
.format-column-header.audio { color: var(--purple); }

.format-column-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.format-list {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.format-group h4 {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.format-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.format-tag {
  display: inline-block;
  padding: 0.4rem 0.85rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.format-tag.highlight {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.format-tag.best {
  border-color: var(--green);
  color: var(--green);
  background: rgba(16, 185, 129, 0.1);
}

/* ========================================
   App Preview / Tabs
   ======================================== */
.app-preview {
  padding: var(--section-padding);
  background: var(--bg-secondary);
}

.tabs-preview {
  max-width: 800px;
  margin: 0 auto;
}

.preview-tabs {
  display: flex;
  gap: 0.25rem;
  background: var(--bg-card);
  padding: 0.35rem;
  border-radius: var(--radius);
  margin-bottom: 2rem;
  overflow-x: auto;
}

.preview-tab {
  flex: 1;
  padding: 0.65rem 1rem;
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.preview-tab:hover {
  color: var(--text-secondary);
}

.preview-tab.active {
  background: var(--accent);
  color: #fff;
}

.preview-panel {
  display: none;
  animation: fadeIn 0.3s ease;
}

.preview-panel.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.panel-features {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.panel-feature {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.panel-feature:hover {
  border-color: var(--border-light);
  background: var(--bg-card-hover);
}

.panel-feature svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--accent);
}

.panel-feature strong {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.95rem;
}

.panel-feature p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}

/* ========================================
   Shortcuts
   ======================================== */
.shortcuts {
  padding: var(--section-padding);
}

.shortcuts-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  max-width: 900px;
  margin: 0 auto;
}

.shortcut-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 1.5rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
  transition: all var(--transition);
  opacity: 0;
  transform: translateY(20px);
}

.shortcut-item.visible {
  opacity: 1;
  transform: translateY(0);
}

.shortcut-item:hover {
  border-color: var(--border-light);
  transform: translateY(-2px);
}

kbd {
  display: inline-block;
  padding: 0.3rem 0.6rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.3);
}

.shortcut-item span:not(kbd) {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* ========================================
   Download Section
   ======================================== */
.download-section {
  padding: var(--section-padding);
  background: var(--bg-secondary);
}

.download-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 3rem;
  position: relative;
  overflow: hidden;
}

.download-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--cyan), var(--purple));
}

.download-content h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.download-content > p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 2rem;
}

.download-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.download-btn {
  padding: 1rem 1.5rem !important;
}

.download-btn-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.3;
}

.download-btn-text strong {
  font-size: 0.95rem;
}

.download-btn-text small {
  font-size: 0.75rem;
  opacity: 0.7;
  font-weight: 400;
}

.download-info {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.info-item svg {
  flex-shrink: 0;
  color: var(--green);
}

/* Version Card */
.version-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 2rem;
  min-width: 260px;
  text-align: center;
}

.version-header {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.version-number {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 0.25rem;
}

.version-date {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.version-changes {
  list-style: none;
  text-align: left;
}

.version-changes li {
  padding: 0.4rem 0;
  font-size: 0.8rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  padding-left: 1rem;
  position: relative;
}

.version-changes li:last-child {
  border-bottom: none;
}

.version-changes li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  transform: translateY(-50%);
}

/* ========================================
   Footer
   ======================================== */
.footer {
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 0.75rem;
  max-width: 280px;
  line-height: 1.5;
}

.footer-links-group h4 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.footer-links-group ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links-group a {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.footer-links-group a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 2rem;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ========================================
   Responsive Design
   ======================================== */

/* Tablet: 768px - 1024px */
@media (max-width: 1024px) {
  :root {
    --section-padding: 5rem 0;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .shortcuts-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .download-card {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .download-buttons {
    justify-content: center;
  }

  .download-info {
    align-items: center;
  }

  .download-visual {
    display: flex;
    justify-content: center;
  }

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

  .footer-brand {
    grid-column: 1 / -1;
  }
}

/* Mobile Large: < 768px */
@media (max-width: 768px) {
  :root {
    --section-padding: 4rem 0;
  }

  /* Nav mobile */
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-secondary);
    flex-direction: column;
    align-items: stretch;
    padding: 5rem 1.5rem 2rem;
    gap: 0.5rem;
    border-left: 1px solid var(--border);
    transition: right var(--transition);
    z-index: 999;
  }

  .nav-links.open {
    right: 0;
  }

  .nav-links a {
    font-size: 1rem;
    padding: 0.75rem 1rem;
  }

  .nav-cta {
    text-align: center;
    margin-top: 0.5rem;
  }

  .nav-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle.open span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  /* Hero */
  .hero {
    padding: 3rem 0;
    min-height: auto;
  }

  .hero-stats {
    gap: 1.25rem;
    padding: 0.85rem 1.5rem;
  }

  .stat-number {
    font-size: 1.25rem;
  }

  /* App Preview */
  .hero-preview {
    padding: 0 0.5rem;
  }

  .mock-tabs {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .mock-options {
    gap: 0.5rem;
  }

  .mock-row {
    flex-direction: column;
    gap: 0.5rem;
  }

  /* Features */
  .features-grid {
    grid-template-columns: 1fr;
  }

  /* Steps */
  .steps {
    flex-direction: column;
    align-items: center;
    gap: 0;
  }

  .step-connector {
    width: 2px;
    height: 40px;
    margin: 0;
  }

  .step {
    padding: 0 0 1.5rem;
  }

  /* Formats */
  .formats-columns {
    grid-template-columns: 1fr;
  }

  /* Shortcuts */
  .shortcuts-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }

  .shortcut-item {
    padding: 1rem 0.75rem;
  }

  /* Download */
  .download-card {
    padding: 2rem 1.5rem;
  }

  .download-content h2 {
    font-size: 1.5rem;
  }

  .download-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .download-btn-text {
    align-items: center;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .footer-brand {
    grid-column: 1;
  }

  .footer-brand p {
    margin: 0.75rem auto 0;
  }

  .footer-brand .nav-logo {
    justify-content: center;
  }
}

/* Mobile Small: < 480px */
@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }

  .hero h1 {
    font-size: 2.25rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-stats {
    flex-direction: column;
    gap: 0.75rem;
    border-radius: var(--radius);
    padding: 1rem;
  }

  .stat-divider {
    width: 32px;
    height: 1px;
  }

  .mock-buttons {
    flex-wrap: wrap;
  }

  .mock-btn {
    flex: 1;
    text-align: center;
    min-width: 0;
  }

  .preview-tabs {
    gap: 0;
  }

  .preview-tab {
    font-size: 0.78rem;
    padding: 0.55rem 0.5rem;
  }

  .shortcut-item kbd {
    font-size: 0.7rem;
    padding: 0.2rem 0.4rem;
  }

  .version-card {
    min-width: unset;
    width: 100%;
  }
}

/* ========================================
   Overlay for mobile menu
   ======================================== */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 998;
}

.nav-overlay.open {
  display: block;
}

/* ========================================
   Scroll Animations
   ======================================== */
[data-aos] {
  transition: opacity 0.6s ease, transform 0.6s ease;
}

/* ========================================
   Accessibility
   ======================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .sites-track {
    animation: none;
  }
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Selection */
::selection {
  background: var(--accent);
  color: #fff;
}

/* ========================================
   Beta Banner
   ======================================== */
.beta-banner {
  background: #1a1500;
  border-bottom: 1px solid rgba(234, 179, 8, 0.3);
  padding: 0.6rem 0;
  font-size: 0.82rem;
  color: var(--yellow);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1001;
}

.beta-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.beta-inner svg {
  flex-shrink: 0;
}

.beta-close {
  background: none;
  border: none;
  color: var(--yellow);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0 0.5rem;
  opacity: 0.6;
  transition: opacity var(--transition);
  margin-inline-start: 0.5rem;
}

.beta-close:hover {
  opacity: 1;
}

.beta-banner.hidden {
  display: none;
}

/* Shift navbar below the fixed beta banner */
.beta-banner:not(.hidden) ~ .navbar {
  top: 37px;
}

/* Push page content below both fixed bars */
body {
  padding-top: calc(37px + 60px); /* beta banner + navbar */
}

body.beta-hidden {
  padding-top: 60px; /* navbar only */
}

/* ========================================
   Language Toggle
   ======================================== */
.nav-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.lang-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1.5px solid var(--border-light);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
  transition: all var(--transition);
}

.lang-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--text-muted);
}

.lang-flag {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

/* ========================================
   Privacy Pills
   ======================================== */
.privacy-pills {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.85rem;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--green);
}

.pill svg {
  flex-shrink: 0;
}

/* ========================================
   NX1X Footer
   ======================================== */
.footer-nx1x {
  margin-top: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-nx1x a {
  color: var(--accent);
  font-weight: 600;
}

/* ========================================
   Back to Top
   ======================================== */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px var(--accent-glow);
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all var(--transition);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--accent-hover);
  transform: translateY(-3px);
}

/* ========================================
   RTL Support
   ======================================== */
html[dir="rtl"] {
  direction: rtl;
}

html[dir="rtl"] body {
  font-family: 'Segoe UI', Tahoma, Arial, sans-serif;
}

/* Nav order stays the same in RTL — direction:rtl handles the flow */

html[dir="rtl"] .mock-url-bar,
html[dir="rtl"] .mock-row,
html[dir="rtl"] .mock-options,
html[dir="rtl"] .mock-buttons,
html[dir="rtl"] .mock-select-group {
  direction: ltr;
}

html[dir="rtl"] .version-changes {
  text-align: right;
}

html[dir="rtl"] .version-changes li {
  padding-left: 0;
  padding-right: 1rem;
}

html[dir="rtl"] .version-changes li::before {
  left: auto;
  right: 0;
}

html[dir="rtl"] .panel-feature {
  flex-direction: row-reverse;
  text-align: right;
}

html[dir="rtl"] .info-item {
  flex-direction: row-reverse;
}

html[dir="rtl"] .download-btn-text {
  align-items: flex-end;
}

html[dir="rtl"] .download-btn {
  flex-direction: row-reverse;
}

html[dir="rtl"] .footer-grid {
  direction: rtl;
}

html[dir="rtl"] .footer-nx1x {
  direction: rtl;
}

html[dir="rtl"] .back-to-top {
  right: auto;
  left: 2rem;
}

html[dir="rtl"] .sites-track {
  animation-direction: reverse;
}

/* RTL mobile nav */
@media (max-width: 768px) {
  html[dir="rtl"] .nav-links {
    right: auto;
    left: -100%;
    border-left: none;
    border-right: 1px solid var(--border);
    flex-direction: column;
  }

  html[dir="rtl"] .nav-links.open {
    left: 0;
    right: auto;
  }

  html[dir="rtl"] .download-btn-text {
    align-items: center;
  }
}

@media (max-width: 480px) {
  .privacy-pills {
    gap: 0.35rem;
  }

  .pill {
    font-size: 0.72rem;
    padding: 0.3rem 0.65rem;
  }

  .back-to-top {
    bottom: 1.25rem;
    right: 1.25rem;
    width: 40px;
    height: 40px;
  }

  html[dir="rtl"] .back-to-top {
    right: auto;
    left: 1.25rem;
  }
}