:root {
  color-scheme: light;
  --bg: #f4f4ef;
  --bg-soft: #f9f9f5;
  --surface: #ffffff;
  --ink: #050505;
  --muted: #6b7280;
  --line: #e7e7de;
  --accent: #050505;
  --accent-soft: rgba(5, 5, 5, 0.08);
  --shadow-soft: 0 20px 55px rgba(5, 5, 5, 0.08);
  --radius-lg: 32px;
  --radius-md: 24px;
  --radius-sm: 14px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: radial-gradient(circle at top, #ffffff 0%, var(--bg) 70%);
  color: var(--ink);
  min-height: 100vh;
}

img {
  max-width: 100%;
  display: block;
  border-radius: var(--radius-sm);
}

button {
  font-family: inherit;
}

.page-shell {
  max-width: 1300px;
  margin: 0 auto;
  padding: 32px clamp(16px, 4vw, 32px) 80px;
}

.site-header {
  position: sticky;
  top: 16px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background-color: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 14px 24px;
  backdrop-filter: blur(18px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.05);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 12px;
  background: linear-gradient(135deg, #050505, #3c3c3c);
  position: relative;
}

.brand-mark::after {
  content: '';
  position: absolute;
  inset: 6px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 8px;
}

.brand-text {
  font-weight: 700;
  letter-spacing: 0.25em;
  font-size: 13px;
}

.site-nav {
  flex: 1;
  display: flex;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
}

.site-nav a {
  text-decoration: none;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color 0.2s;
}

.site-nav a:hover {
  color: var(--ink);
}

.nav-actions {
  display: flex;
  gap: 10px;
}

.btn {
  border-radius: 999px;
  border: 1px solid transparent;
  padding: 9px 18px;
  font-size: 13px;
  font-weight: 600;
  background: transparent;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn.primary {
  background-color: var(--ink);
  color: white;
  border-color: var(--ink);
}

.btn.ghost {
  border-color: var(--line);
  color: var(--ink);
  background-color: rgba(255, 255, 255, 0.6);
}

.btn.large {
  padding: 14px 26px;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
}

main {
  margin-top: 48px;
  display: flex;
  flex-direction: column;
  gap: 56px;
}

.block {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 5vw, 48px);
  position: relative;
  overflow: hidden;
}

.block::after {
  content: '';
  position: absolute;
  inset: 20px;
  border-radius: inherit;
  background: radial-gradient(circle at top right, rgba(5, 5, 5, 0.04), transparent 55%);
  pointer-events: none;
}

.block > * {
  position: relative;
  z-index: 1;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: clamp(24px, 5vw, 60px);
  align-items: center;
}

.eyebrow {
  font-size: 12px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
}

h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(36px, 5vw, 56px);
  letter-spacing: -0.03em;
  margin: 0 0 16px;
}

.lead {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.6;
}

.cta-row {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-badges {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--muted);
  font-size: 12px;
}

.hero-badges span {
  border: 1px solid var(--line);
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(5, 5, 5, 0.03);
}

.device-demo {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}

.device-demo {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  width: 100%;
  user-select: none;
  -webkit-user-select: none;
  touch-action: pan-y;
}

.device-frame {
  width: min(320px, 70vw);
  aspect-ratio: 9/19.5;
  background: linear-gradient(145deg, #1a1a1a, #2a2a2a);
  border: 8px solid #0a0a0a;
  border-radius: 40px;
  padding: 0;
  position: relative;
  box-shadow: 
    0 0 0 1px rgba(255, 255, 255, 0.1) inset,
    0 30px 60px rgba(0, 0, 0, 0.4),
    0 0 0 2px rgba(0, 0, 0, 0.2);
  overflow: hidden;
}

.device-notch {
  display: none;
}

.device-screen {
  width: 100%;
  height: 100%;
  border-radius: 32px;
  overflow: hidden;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center top;
  background-color: #000;
  animation: screenFade 1.2s ease forwards;
  position: relative;
  transition: opacity 0.4s ease, transform 0.4s ease;
}

@keyframes screenFade {
  from {
    opacity: 0;
    transform: scale(0.96);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.device-shadow {
  width: 60%;
  height: 30px;
  background: radial-gradient(circle, rgba(0, 0, 0, 0.25), transparent 70%);
  filter: blur(10px);
}

.device-info {
  text-align: center;
  margin-top: 10px;
  max-width: 320px;
}

.device-info h4 {
  margin: 0 0 4px;
  font-size: 16px;
}

.device-info p {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

.device-dots {
  display: flex;
  gap: 8px;
}

.device-dots .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: none;
  background-color: rgba(5, 5, 5, 0.2);
  cursor: pointer;
  transition: background-color 0.2s, transform 0.2s;
}

.device-dots .dot.active {
  background-color: var(--ink);
  transform: scale(1.1);
}

.screens {
  display: grid;
  grid-template-columns: minmax(250px, 0.9fr) minmax(320px, 1.2fr);
  gap: clamp(24px, 4vw, 60px);
  align-items: center;
}

.screens-copy h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(28px, 4vw, 40px);
  margin: 8px 0 12px;
}

.screens-copy p {
  color: var(--muted);
  line-height: 1.6;
}

.screens-points {
  list-style: none;
  padding: 0;
  margin: 20px 0 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  color: var(--muted);
}

.screens-points li {
  position: relative;
  padding-left: 18px;
}

.screens-points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ink);
}

.screens-wall {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

.screen-card {
  position: relative;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  transition: transform 0.4s, box-shadow 0.4s;
}

.screen-card img {
  width: 100%;
  display: block;
}

.screen-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.15);
}

.screen-caption {
  padding: 14px 16px 16px;
}

.screen-caption h4 {
  margin: 0 0 4px;
  font-size: 16px;
}

.screen-caption p {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

.cta {
  text-align: center;
  background: linear-gradient(135deg, rgba(5, 5, 5, 0.04), rgba(5, 5, 5, 0.12));
}

.site-footer {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
}

.footer-links {
  display: flex;
  gap: 12px;
}

.footer-links a {
  text-decoration: none;
  color: var(--muted);
}

[data-delay] {
  transition-delay: calc(var(--delay, 0) * 1s);
}

.animate {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate[data-animate='fade-up'].is-visible,
.animate[data-animate='slide-up'].is-visible {
  opacity: 1;
  transform: translateY(0);
}

.animate[data-animate='fade-up'] {
  transform: translateY(16px);
}

.animate[data-animate='slide-up'] {
  transform: translateY(28px);
}

@media (max-width: 960px) {
  .site-header {
    position: static;
    top: auto;
    flex-direction: column;
    border-radius: 24px;
  }

  .site-nav {
    order: 3;
  }

  .filters-body {
    grid-template-columns: minmax(0, 1fr);
  }

  .filter-preview {
    flex-direction: column;
  }
}

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

[dir="rtl"] .site-header {
  flex-direction: row-reverse;
}

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

[dir="rtl"] .site-nav {
  flex-direction: row-reverse;
}

[dir="rtl"] .nav-actions {
  flex-direction: row-reverse;
}

[dir="rtl"] .hero {
  direction: rtl;
}

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

[dir="rtl"] .hero-badges {
  flex-direction: row-reverse;
}

[dir="rtl"] .footer-links {
  flex-direction: row-reverse;
}

@media (max-width: 600px) {
  .site-nav {
    flex-direction: column;
  }

  .nav-actions {
    width: 100%;
    justify-content: center;
  }

  .hero {
    grid-template-columns: 1fr;
  }

  .device-frame,
  .device-frame.mini {
    width: min(260px, 80vw);
    border-width: 6px;
    border-radius: 32px;
  }

  .device-screen {
    border-radius: 26px;
  }

  .device-info {
    text-align: left;
    max-width: 100%;
    padding: 0 8px;
  }

  [dir="rtl"] .device-info {
    text-align: right;
  }

  .preview-stage {
    flex-direction: column;
  }

  .preview-carousel {
    grid-auto-columns: 100%;
  }
}