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

:root {
  --bg-base:            #0f0f0f;
  --bg-surface:         #1a1a1a;
  --bg-surface-hover:   #222222;
  --bg-elevated:        #2a2a2a;
  --accent:             #06b6d4;
  --accent-hover:       #0891b2;
  --accent-glow:        rgba(6,182,212,0.15);
  --accent-glow-strong: rgba(6,182,212,0.30);
  --purple:             #9b59b6;
  --purple-glow:        rgba(155,89,182,0.20);
  --green:              #10b981;
  --green-glow:         rgba(16,185,129,0.15);
  --orange:             #f59e0b;
  --orange-glow:        rgba(245,158,11,0.15);
  --text-primary:       #ffffff;
  --text-secondary:     #a1a1aa;
  --text-tertiary:      #71717a;
  --border:             #27272a;
  --border-hover:       #3f3f46;
  --radius:             12px;
  --radius-lg:          20px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── Scrollbar ───────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #2a2a2a; border-radius: 9999px; }

/* ── Container ───────────────────────────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
  border: none;
  transition: all 0.2s ease;
  white-space: nowrap;
  position: relative;
}

.btn-primary {
  background: var(--accent);
  color: #000;
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 8px 24px var(--accent-glow-strong); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

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

.btn-lg { padding: 14px 28px; font-size: 15px; border-radius: 14px; }
.btn-xl { padding: 18px 40px; font-size: 17px; border-radius: 16px; }

.btn-badge {
  background: rgba(255,255,255,0.2);
  color: #000;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 99px;
  font-weight: 600;
}

/* ── Gradient Text ───────────────────────────────────────────────────────── */
.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, #818cf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Section Labels ──────────────────────────────────────────────────────── */
.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  padding: 4px 12px;
  background: var(--accent-glow);
  border-radius: 99px;
  border: 1px solid rgba(6,182,212,0.3);
}

.section-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  margin-bottom: 56px;
}

/* ────────────────────────────────────────────────────────────────────────── */
/* NAV                                                                        */
/* ────────────────────────────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(15,15,15,0.85);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 18px;
}

.logo-icon {
  font-size: 22px;
  color: var(--accent);
  line-height: 1;
}

.logo-text { letter-spacing: -0.02em; }

.nav-links {
  display: flex;
  list-style: none;
  gap: 28px;
  margin-left: auto;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text-primary); }

.nav-cta { margin-left: 4px; padding: 8px 18px; font-size: 13px; border-radius: 10px; }

/* ────────────────────────────────────────────────────────────────────────── */
/* HERO                                                                        */
/* ────────────────────────────────────────────────────────────────────────── */
.hero {
  position: relative;
  padding: 160px 0 80px;
  overflow: hidden;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 0%, transparent 100%);
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}
.hero-glow-1 {
  width: 600px; height: 600px;
  background: var(--accent-glow);
  top: -200px; left: 50%;
  transform: translateX(-60%);
}
.hero-glow-2 {
  width: 400px; height: 400px;
  background: var(--purple-glow);
  top: 100px; right: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  padding: 6px 16px;
  border-radius: 99px;
  margin-bottom: 32px;
  font-weight: 500;
}

.badge-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-title {
  font-size: clamp(40px, 6vw, 76px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: clamp(16px, 2vw, 19px);
  color: var(--text-secondary);
  max-width: 580px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.hero-stats {
  display: inline-flex;
  align-items: center;
  gap: 24px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 32px;
}

.stat { text-align: center; }
.stat-num { display: block; font-size: 28px; font-weight: 800; color: var(--accent); letter-spacing: -0.02em; }
.stat-label { font-size: 12px; color: var(--text-tertiary); font-weight: 500; }
.stat-divider { width: 1px; height: 40px; background: var(--border); }

/* ── App Mockup ──────────────────────────────────────────────────────────── */
.hero-mockup {
  position: relative;
  z-index: 1;
  padding-top: 60px;
  padding-bottom: 80px;
}

.mockup-frame {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 40px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.04);
  max-width: 900px;
  margin: 0 auto;
}

.mockup-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}

.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot-red { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green { background: #28c840; }

.mockup-title {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-left: 8px;
  font-weight: 500;
}

.mockup-body {
  display: grid;
  grid-template-columns: 200px 1fr 180px;
  height: 320px;
}

.mockup-sidebar {
  border-right: 1px solid var(--border);
  padding: 12px 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mock-profile {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius);
  cursor: pointer;
}
.mock-profile.active { background: var(--bg-elevated); }
.mock-profile:not(.active):hover { background: var(--bg-surface-hover); }

.mock-avatar { width: 32px; height: 32px; border-radius: 50%; flex-shrink: 0; }
.mock-name { font-size: 13px; font-weight: 500; }
.mock-status { font-size: 11px; color: var(--green); margin-top: 1px; }

.mockup-chat {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow: hidden;
}

.mock-msg { display: flex; flex-direction: column; gap: 4px; max-width: 75%; }
.mock-msg.incoming { align-self: flex-start; }
.mock-msg.outgoing { align-self: flex-end; }

.mock-bubble {
  padding: 8px 12px;
  border-radius: 12px;
  font-size: 12px;
  line-height: 1.5;
}
.mock-msg.incoming .mock-bubble {
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border-bottom-left-radius: 4px;
}
.mock-msg.outgoing .mock-bubble {
  background: var(--accent);
  color: #000;
  border-bottom-right-radius: 4px;
}

.mock-translate-btn {
  font-size: 10px;
  color: var(--purple);
  border: 1px solid rgba(155,89,182,0.4);
  border-radius: 8px;
  padding: 2px 8px;
  align-self: flex-start;
  cursor: pointer;
}

.mockup-inbox {
  border-left: 1px solid var(--border);
  padding: 12px 8px;
}

.inbox-header {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 8px 10px;
}

.inbox-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px;
  border-radius: 8px;
  margin-bottom: 2px;
}
.inbox-item.unread { background: var(--bg-elevated); }

.inbox-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.inbox-user { font-size: 12px; color: var(--text-secondary); }

/* ────────────────────────────────────────────────────────────────────────── */
/* PLATFORMS                                                                  */
/* ────────────────────────────────────────────────────────────────────────── */
.platforms {
  padding: 80px 0;
  border-top: 1px solid var(--border);
  text-align: center;
}

.platforms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  max-width: 700px;
  margin: 0 auto;
}

.platform-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: border-color 0.2s, transform 0.2s;
}
.platform-card:hover { border-color: var(--border-hover); transform: translateY(-3px); }

.platform-icon {
  width: 60px; height: 60px;
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  font-weight: 800;
  margin: 0 auto 16px;
}

.of-icon { background: rgba(6,182,212,0.15); color: var(--accent); border: 1px solid rgba(6,182,212,0.3); }
.fan-icon { background: var(--purple-glow); color: var(--purple); border: 1px solid rgba(155,89,182,0.3); }

.platform-name { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.platform-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* ────────────────────────────────────────────────────────────────────────── */
/* FEATURES                                                                   */
/* ────────────────────────────────────────────────────────────────────────── */
.features {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  position: relative;
  overflow: hidden;
}
.feature-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.3);
}

.feature-large { grid-column: span 2; }

.feature-icon {
  width: 48px; height: 48px;
  background: var(--accent-glow);
  border: 1px solid rgba(6,182,212,0.25);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  margin-bottom: 18px;
}
.feature-icon.icon-purple { background: var(--purple-glow); border-color: rgba(155,89,182,0.25); color: var(--purple); }
.feature-icon.icon-green  { background: var(--green-glow);  border-color: rgba(16,185,129,0.25);  color: var(--green); }
.feature-icon.icon-orange { background: var(--orange-glow); border-color: rgba(245,158,11,0.25);  color: var(--orange); }

.feature-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.feature-tag {
  display: inline-block;
  margin-top: 16px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid rgba(6,182,212,0.25);
  padding: 3px 10px;
  border-radius: 99px;
}
.feature-tag-green { color: var(--green); background: var(--green-glow); border-color: rgba(16,185,129,0.25); }

/* ────────────────────────────────────────────────────────────────────────── */
/* SCREENSHOTS                                                                */
/* ────────────────────────────────────────────────────────────────────────── */
.screenshots {
  padding: 100px 0;
  border-top: 1px solid var(--border);
  text-align: center;
}

.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.screenshot-placeholder {
  background: var(--bg-surface);
  border: 1px dashed var(--border-hover);
  border-radius: var(--radius-lg);
  padding: 60px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  aspect-ratio: 16/10;
  justify-content: center;
}

.ph-icon { font-size: 40px; }
.ph-text { font-size: 14px; color: var(--text-secondary); text-align: center; }
.ph-text span { display: block; font-size: 11px; color: var(--text-tertiary); margin-top: 4px; text-transform: uppercase; letter-spacing: 0.08em; }

/* ────────────────────────────────────────────────────────────────────────── */
/* DOWNLOAD                                                                   */
/* ────────────────────────────────────────────────────────────────────────── */
.download {
  position: relative;
  padding: 120px 0;
  border-top: 1px solid var(--border);
  overflow: hidden;
  text-align: center;
}

.download-glow {
  position: absolute;
  width: 600px; height: 400px;
  background: var(--accent-glow);
  border-radius: 50%;
  filter: blur(100px);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.download-inner { position: relative; z-index: 1; }

.download-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 20px;
  padding: 4px 12px;
  background: var(--green-glow);
  border-radius: 99px;
  border: 1px solid rgba(16,185,129,0.3);
}

.download-title {
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.download-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 40px;
}

.download-btn-wrap { margin-bottom: 20px; }

.download-meta {
  font-size: 13px;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.dot-sep { color: var(--border-hover); }

/* ────────────────────────────────────────────────────────────────────────── */
/* FOOTER                                                                     */
/* ────────────────────────────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-copy {
  font-size: 13px;
  color: var(--text-tertiary);
}

/* ── Logo gradient (matching OnlyGen app) ────────────────────────────────── */
.logo-img { flex-shrink: 0; }
.logo-gradient {
  background: linear-gradient(135deg, #fff 30%, #06b6d4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

/* ── Mockup sidebar — OnlyGen app style ──────────────────────────────────── */
.mockup-sidebar {
  background: #0a0a0a;
  border-right: 1px solid var(--border);
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  overflow: hidden;
}

.mockup-sidebar-logo {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.mockup-logo-text {
  font-size: 14px;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #fff 30%, #06b6d4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.mockup-nav-group {
  padding: 8px 6px 0;
}

.mockup-nav-label {
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  padding: 4px 8px 6px;
}

.mock-nav-item {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 5px 8px;
  border-radius: 6px;
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 1px;
  cursor: pointer;
}
.mock-nav-item svg { color: var(--text-tertiary); flex-shrink: 0; }
.mock-nav-item.active {
  background: var(--bg-elevated);
  color: var(--text-primary);
}
.mock-nav-item.active svg { color: var(--accent); }

/* ── Screenshot placeholder icons ───────────────────────────────────────── */
.ph-icon {
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.ph-icon svg { stroke: var(--text-tertiary); }

/* ────────────────────────────────────────────────────────────────────────── */
/* ANIMATIONS                                                                 */
/* ────────────────────────────────────────────────────────────────────────── */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-badge, .hero-title, .hero-subtitle, .hero-actions, .hero-stats {
  animation: fade-up 0.6s ease both;
}
.hero-badge    { animation-delay: 0.1s; }
.hero-title    { animation-delay: 0.2s; }
.hero-subtitle { animation-delay: 0.3s; }
.hero-actions  { animation-delay: 0.4s; }
.hero-stats    { animation-delay: 0.5s; }
.hero-mockup   { animation: fade-up 0.8s 0.6s ease both; }

/* ────────────────────────────────────────────────────────────────────────── */
/* RESPONSIVE                                                                 */
/* ────────────────────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .features-grid { grid-template-columns: 1fr 1fr; }
  .feature-large { grid-column: span 2; }
  .mockup-body { grid-template-columns: 160px 1fr; }
  .mockup-inbox { display: none; }
  .screenshots-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .nav-links { display: none; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-large { grid-column: span 1; }
  .hero-stats { flex-direction: column; gap: 16px; padding: 20px 24px; }
  .stat-divider { width: 50px; height: 1px; }
  .mockup-body { grid-template-columns: 1fr; }
  .mockup-sidebar { display: none; }
  .footer-inner { flex-direction: column; text-align: center; }
}