:root {
  --bg: #09090c;
  --surface: #14141b;
  --primary: #ffb627;
  --text: #f6f3ed;
  --text-muted: #a19eaa;
  --nav-height: 72px;
  --max-width: 1180px;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.5;
  overflow-x: hidden;
  padding-bottom: 58px; /* for mobile bottom bar */
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  display: block;
  max-width: 100%;
}
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}
.text-primary { color: var(--primary); }
.text-muted { color: var(--text-muted); }
h1, h2, h3 {
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
h2 {
  font-size: 2.5rem;
  margin-bottom: 12px;
}
h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
}
p {
  color: var(--text-muted);
  margin-bottom: 24px;
}
.section-label {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--primary);
  color: #000;
  font-weight: 800;
  padding: 12px 24px;
  border-radius: 8px;
  cursor: pointer;
  border: none;
  transition: transform 0.2s, opacity 0.2s;
  font-size: 1rem;
}
.btn:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}
.btn-outline {
  background-color: transparent;
  color: var(--text);
  border: 1px solid var(--text-muted);
}
.btn-outline:hover {
  border-color: var(--text);
}
/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  background: rgba(9, 9, 12, 0.9);
  backdrop-filter: blur(10px);
  z-index: 100;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 900;
  font-size: 1.2rem;
}
.brand img {
  height: 32px;
  border-radius: 6px;
}
.app-badge {
  font-size: 0.65rem;
  border: 1px solid var(--text-muted);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--text-muted);
  margin-left: 8px;
}
.nav-links {
  display: flex;
  gap: 20px;
  font-size: 0.9rem;
  font-weight: 600;
}
.nav-links a {
  transition: color 0.2s;
}
.nav-links a:hover {
  color: var(--primary);
}
.nav-status {
  font-size: 0.8rem;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-status::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
}
/* Sections */
section {
  padding: 80px 0;
}
/* Hero */
.hero {
  padding-top: calc(var(--nav-height) + 60px);
  position: relative;
}
.hero-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.hero-tags {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
}
.tag {
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 4px;
  background: rgba(255, 182, 39, 0.1);
  color: var(--primary);
  font-weight: 700;
}
.tag-alt {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
}
.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 24px;
}
.hero-desc {
  font-size: 1.1rem;
  margin-bottom: 32px;
  max-width: 480px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}
.hero-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 14px 20px;
  text-align: left;
}
.hero-btn span:first-child {
  font-size: 0.8rem;
  opacity: 0.8;
}
.hero-btn span:last-child {
  font-size: 1.1rem;
}
.hero-links {
  display: flex;
  gap: 16px;
  font-size: 0.9rem;
  margin-bottom: 24px;
}
.hero-links a {
  color: var(--text-muted);
  text-decoration: underline;
  text-underline-offset: 4px;
}
.hero-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.hero-phones {
  position: relative;
  display: flex;
  justify-content: center;
  perspective: 1000px;
}
.phone-mockup {
  position: relative;
  width: 280px;
  aspect-ratio: 9/16;
  background: var(--surface);
  border-radius: 36px;
  border: 8px solid #222;
  overflow: hidden;
  transform: rotateY(-5deg) rotateX(2deg);
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
  z-index: 2;
}
.phone-mockup img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.floating-tag {
  position: absolute;
  background: rgba(20, 20, 27, 0.85);
  backdrop-filter: blur(4px);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  z-index: 3;
  border: 1px solid rgba(255,255,255,0.1);
}
.ft-1 { top: 20%; left: -40px; }
.ft-2 { top: 50%; right: -40px; }
.ft-3 { bottom: 20%; left: -20px; }
.hero-orbit {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120%;
  height: 120%;
  border: 1px dashed rgba(255, 182, 39, 0.2);
  border-radius: 50%;
  z-index: 0;
  pointer-events: none;
}
.hero-stats {
  display: flex;
  justify-content: space-between;
  margin-top: 60px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.stat-item {
  font-size: 0.9rem;
  color: var(--text-muted);
}
.stat-item strong {
  display: block;
  font-size: 1.5rem;
  color: var(--text);
  font-weight: 800;
}

/* Section 2: Why */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.card {
  background: var(--surface);
  border-radius: 12px;
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
}
.card-highlight {
  background: var(--primary);
  color: #000;
}
.card-highlight p {
  color: rgba(0,0,0,0.7);
}
.card-highlight .tag {
  background: rgba(0,0,0,0.1);
  color: #000;
}
.card p {
  font-size: 0.95rem;
  flex-grow: 1;
}

/* Section 3: UI */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.ui-card {
  text-align: center;
}
.ui-card .phone-mockup {
  width: 100%;
  margin: 0 auto 16px;
  transform: none;
  border-width: 6px;
  border-radius: 24px;
}
.ui-card h3 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}
.ui-card p {
  font-size: 0.9rem;
  margin-bottom: 0;
}
.ui-footer {
  text-align: center;
  margin-top: 40px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Section 4: Library */
.library-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 32px;
}
.library-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}
.poster-card {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
}
.poster-card img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  transition: transform 0.3s;
}
.poster-card:hover img {
  transform: scale(1.05);
}
.poster-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, transparent 50%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 16px;
}
.poster-overlay h3 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}
.poster-overlay p {
  font-size: 0.8rem;
  color: #ccc;
  margin-bottom: 0;
}
.poster-tag {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--primary);
  color: #000;
  font-size: 0.7rem;
  font-weight: 800;
  padding: 4px 8px;
  border-radius: 4px;
}
.hover-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0,0,0,0.7);
  padding: 8px 12px;
  border-radius: 4px;
  font-weight: 700;
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
  white-space: nowrap;
}
.poster-card:hover .hover-text {
  opacity: 1;
}
.stills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.still-card {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
}
.still-card img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  transition: transform 0.3s;
}
.still-card:hover img {
  transform: scale(1.05);
}
.still-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 16px;
  background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
  font-size: 0.9rem;
  font-weight: 700;
}

/* Section 5: Weekly */
.weekly-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 32px;
}
.weekly-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.weekly-card {
  background: var(--surface);
  border-radius: 12px;
  overflow: hidden;
  position: relative;
}
.weekly-card img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}
.weekly-info {
  padding: 16px;
}
.weekly-info h3 {
  font-size: 1rem;
  margin-bottom: 4px;
}
.weekly-info p {
  font-size: 0.8rem;
  margin-bottom: 0;
}
.weekly-tag {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(0,0,0,0.8);
  color: var(--primary);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 4px;
  backdrop-filter: blur(4px);
}

/* Section 6: Behind the scenes */
.bts-stats {
  display: flex;
  gap: 40px;
  margin-bottom: 40px;
}
.bts-stat {
  font-size: 1rem;
  color: var(--text-muted);
}
.bts-stat strong {
  display: block;
  font-size: 2rem;
  color: var(--primary);
  font-weight: 900;
}
.bts-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}
.bts-card {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
}
.bts-card img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.bts-card.wide {
  grid-column: span 2;
}
.bts-card.wide img {
  aspect-ratio: 16/9;
}
.bts-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 20px;
  background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
}
.bts-overlay span {
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--primary);
  display: block;
  margin-bottom: 4px;
}
.bts-overlay h3 {
  font-size: 1rem;
  margin-bottom: 0;
}
.bts-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px;
  background: var(--surface);
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.05);
}
.bts-footer p {
  margin-bottom: 0;
  font-size: 1rem;
  color: var(--text);
}

/* Section 7: Download */
.download-section {
  background: var(--primary);
  color: #000;
  padding: 80px 0;
}
.download-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.download-left .section-label {
  color: rgba(0,0,0,0.6);
}
.download-left h2 {
  font-size: 2.8rem;
  margin-bottom: 16px;
}
.download-left p {
  color: rgba(0,0,0,0.8);
  font-size: 1.1rem;
  max-width: 480px;
}
.download-steps {
  margin-top: 32px;
}
.step {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
}
.step-num {
  background: rgba(0,0,0,0.1);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  flex-shrink: 0;
}
.step p {
  margin-bottom: 0;
  font-size: 1rem;
  color: #000;
}
.download-note {
  font-size: 0.85rem;
  margin-top: 32px;
  color: rgba(0,0,0,0.6);
}
.download-card {
  background: #09090c;
  color: var(--text);
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}
.dc-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}
.dc-header img {
  width: 48px;
  height: 48px;
  border-radius: 10px;
}
.dc-title h3 {
  font-size: 1.1rem;
  margin-bottom: 2px;
}
.dc-title span {
  font-size: 0.8rem;
  color: var(--primary);
}
.dc-badge {
  margin-left: auto;
  background: rgba(255,255,255,0.1);
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 800;
}
.dc-body h4 {
  font-size: 0.9rem;
  margin-bottom: 16px;
  color: var(--text-muted);
}
.device-btn {
  width: 100%;
  background: var(--surface);
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  text-align: left;
}
.device-btn:hover {
  background: #1a1a24;
}
.device-btn.selected {
  border-color: var(--primary);
}
.db-left {
  display: flex;
  flex-direction: column;
}
.db-left strong {
  font-size: 1rem;
  color: var(--text);
}
.db-left span {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
}
.db-right {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.demo-status {
  display: none;
  background: rgba(255, 182, 39, 0.1);
  color: var(--primary);
  padding: 12px;
  border-radius: 8px;
  font-size: 0.8rem;
  margin-top: 16px;
  line-height: 1.4;
}
.demo-status.active {
  display: block;
}
.dc-footer {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 24px;
}

/* Section 8: FAQ */
.faq-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
}
.faq-list details {
  border-bottom: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
}
.faq-list summary {
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-list summary::-webkit-details-marker {
  display: none;
}
.faq-list summary::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--primary);
  font-weight: 400;
}
.faq-list details[open] summary::after {
  content: '-';
}
.faq-list p {
  margin-top: 16px;
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* Footer */
footer {
  padding: 40px 0;
  border-top: 1px solid rgba(255,255,255,0.05);
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}
footer p {
  margin-bottom: 8px;
  color: var(--text-muted);
}
footer a {
  color: var(--text-muted);
  text-decoration: underline;
}
footer a:hover {
  color: var(--text);
}

/* Mobile Bar */
.mobile-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 58px;
  background: var(--surface);
  border-top: 1px solid rgba(255,255,255,0.1);
  z-index: 100;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
}
.mb-info h4 {
  font-size: 0.9rem;
  margin-bottom: 2px;
}
.mb-info span {
  font-size: 0.7rem;
  color: var(--text-muted);
}
.mobile-bar .btn {
  padding: 8px 16px;
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 1020px) {
  .nav-links { display: none; }
  .hero h1 { font-size: 2.8rem; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .bts-grid { grid-template-columns: repeat(2, 1fr); }
  .bts-card.wide { grid-column: span 2; }
}
@media (max-width: 820px) {
  .hero-layout { grid-template-columns: 1fr; text-align: center; }
  .hero-tags { justify-content: center; }
  .hero-desc { margin: 0 auto 32px; }
  .hero-actions { justify-content: center; }
  .hero-links { justify-content: center; }
  .hero-meta { align-items: center; }
  .hero-phones { margin-top: 40px; }
  .hero-stats { flex-wrap: wrap; gap: 20px; justify-content: center; text-align: center; }
  .stat-item { flex: 1 1 40%; }
  .grid-3 { grid-template-columns: 1fr; }
  .library-grid { grid-template-columns: repeat(2, 1fr); }
  .weekly-grid { grid-template-columns: 1fr; }
  .download-layout { grid-template-columns: 1fr; gap: 40px; }
  .faq-layout { grid-template-columns: 1fr; gap: 32px; }
  .bts-footer { flex-direction: column; text-align: center; gap: 16px; }
}
@media (max-width: 640px) {
  .hero h1 { font-size: 2.2rem; }
  .hero-actions { flex-direction: column; }
  .grid-4 { grid-template-columns: 1fr; }
  .library-grid { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 16px; }
  .poster-card { min-width: 240px; scroll-snap-align: start; }
  .stills-grid { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 16px; }
  .still-card { min-width: 280px; scroll-snap-align: start; }
  .grid-3 { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 16px; }
  .ui-card { min-width: 260px; scroll-snap-align: start; }
  .bts-grid { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 16px; }
  .bts-card { min-width: 260px; scroll-snap-align: start; }
  .bts-card.wide { min-width: 320px; }
  .mobile-bar { display: flex; }
  .hero-btn { width: 100%; align-items: center; text-align: center; }
}