/* ============================================================
   Obinot landing page — Material 3 Expressive
   ============================================================ */

:root {
  /* Brand palette (vibrant Material 3 Expressive) */
  --primary: #B4A0FF;
  --primary-deep: #8B6FFF;
  --secondary: #00D9C0;
  --tertiary: #FFB4A0;
  --accent-amber: #FFD479;
  --accent-mint: #7DDFC1;
  --accent-rose: #FF8FB1;

  /* Surfaces */
  --bg: #0F0F1A;
  --bg-elev-1: #161628;
  --bg-elev-2: #1F1F36;
  --surface: #1A1A2E;
  --surface-hi: #232342;
  --border: rgba(255, 255, 255, 0.08);
  --border-hi: rgba(255, 255, 255, 0.14);

  /* Text */
  --text: #ECECF6;
  --text-dim: #A6A6C2;
  --text-muted: #74749A;

  /* Effects */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.3);
  --shadow-lg: 0 24px 48px rgba(0,0,0,0.4);
  --glow-primary: 0 0 60px rgba(180, 160, 255, 0.35);
  --glow-cyan: 0 0 60px rgba(0, 217, 192, 0.3);

  /* Type */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;

  /* Motion */
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout */
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --radius-xl: 36px;
  --max-w: 1120px;
}

/* Light theme overrides */
[data-theme="light"] {
  --bg: #FAFAFC;
  --bg-elev-1: #FFFFFF;
  --bg-elev-2: #F2F2F8;
  --surface: #FFFFFF;
  --surface-hi: #F8F8FD;
  --border: rgba(0, 0, 0, 0.06);
  --border-hi: rgba(0, 0, 0, 0.12);
  --text: #1A1A2E;
  --text-dim: #4F4F6E;
  --text-muted: #74749A;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 24px 48px rgba(0,0,0,0.12);
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 16px;
  overflow-x: hidden;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.4s var(--ease-smooth), color 0.4s var(--ease-smooth);
}

a { color: var(--primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--primary-deep); }

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

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  padding: 2px 8px;
  background: var(--bg-elev-2);
  border-radius: 6px;
  border: 1px solid var(--border);
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================================
   Background blobs (depth)
   ============================================================ */
.bg-blobs {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.45;
  animation: blob-drift 20s ease-in-out infinite;
}
.blob-1 {
  width: 480px; height: 480px;
  background: radial-gradient(circle, var(--primary), transparent 70%);
  top: -120px; left: -120px;
}
.blob-2 {
  width: 420px; height: 420px;
  background: radial-gradient(circle, var(--secondary), transparent 70%);
  top: 40%; right: -120px;
  animation-delay: -7s;
}
.blob-3 {
  width: 380px; height: 380px;
  background: radial-gradient(circle, var(--tertiary), transparent 70%);
  bottom: -100px; left: 30%;
  animation-delay: -14s;
}
[data-theme="light"] .blob { opacity: 0.25; }

@keyframes blob-drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(60px, -40px) scale(1.1); }
  66% { transform: translate(-40px, 60px) scale(0.95); }
}

/* ============================================================
   Theme toggle
   ============================================================ */
.theme-toggle {
  position: fixed;
  top: 24px; right: 24px;
  z-index: 50;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--bg-elev-1);
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease-spring), background 0.3s;
}
.theme-toggle:hover {
  transform: scale(1.1) rotate(15deg);
  background: var(--bg-elev-2);
}
.theme-toggle .icon-moon { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-moon { display: block; }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 80px 0 120px;
  overflow: hidden;
}

.hero-icon {
  position: relative;
  width: 144px;
  height: 144px;
  margin: 0 auto 32px;
}
.hero-icon img {
  width: 100%; height: 100%;
  border-radius: 36px;
  position: relative;
  z-index: 2;
  filter: drop-shadow(0 12px 32px rgba(180, 160, 255, 0.4));
}
.hero-icon-glow {
  position: absolute;
  inset: -30px;
  background: radial-gradient(circle, rgba(180, 160, 255, 0.55), transparent 60%);
  border-radius: 50%;
  z-index: 1;
  animation: glow-pulse 3s ease-in-out infinite;
}
@keyframes glow-pulse {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.15); opacity: 1; }
}

.hero-title {
  font-size: clamp(3rem, 10vw, 6rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  text-align: center;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 50%, var(--tertiary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}

.hero-tagline {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 500;
  text-align: center;
  color: var(--text);
  margin-bottom: 12px;
}
.text-gradient {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 700;
}

.hero-sub {
  text-align: center;
  color: var(--text-dim);
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  margin-bottom: 40px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.3s var(--ease-spring), box-shadow 0.3s, background 0.3s;
  position: relative;
  overflow: hidden;
}
.btn:active {
  transform: scale(0.96) !important;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  color: #0F0F1A;
  box-shadow: 0 4px 20px rgba(180, 160, 255, 0.4);
}
.btn-primary:hover {
  transform: scale(1.06) translateY(-2px);
  box-shadow: 0 8px 32px rgba(180, 160, 255, 0.6);
  color: #0F0F1A;
}
.btn-secondary {
  background: var(--bg-elev-2);
  color: var(--text);
  border: 1px solid var(--border-hi);
}
.btn-secondary:hover {
  transform: scale(1.06) translateY(-2px);
  background: var(--surface-hi);
  color: var(--text);
}

/* Scroll hint */
.scroll-hint {
  position: absolute;
  bottom: 60px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-muted);
  animation: bounce 2s ease-in-out infinite;
}
@keyframes bounce {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 8px); }
}

/* Wave divider */
.wave-divider {
  position: absolute;
  bottom: -1px; left: 0;
  width: 100%; height: 80px;
  color: var(--bg);
}

/* ============================================================
   Features
   ============================================================ */
.features {
  position: relative;
  z-index: 1;
  padding: 100px 0 80px;
}

.section-head {
  text-align: center;
  margin-bottom: 64px;
}
.eyebrow {
  display: inline-block;
  padding: 6px 14px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border-hi);
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--text), var(--text-dim));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.section-head p {
  color: var(--text-dim);
  font-size: 1.05rem;
  max-width: 540px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.feature-card {
  position: relative;
  padding: 32px 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform 0.4s var(--ease-spring), box-shadow 0.4s, border-color 0.3s, background 0.3s;
  overflow: hidden;
}
.feature-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(180, 160, 255, 0.08), transparent 60%);
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}
.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-hi);
}
.feature-card:hover::before { opacity: 1; }

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px; height: 52px;
  border-radius: 16px;
  margin-bottom: 20px;
  position: relative;
  isolation: isolate;
}
.feature-icon::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0.18;
  z-index: -1;
}
.icon-violet { color: var(--primary); }
.icon-violet::before { background: var(--primary); }
.icon-cyan { color: var(--secondary); }
.icon-cyan::before { background: var(--secondary); }
.icon-coral { color: var(--tertiary); }
.icon-coral::before { background: var(--tertiary); }
.icon-amber { color: var(--accent-amber); }
.icon-amber::before { background: var(--accent-amber); }
.icon-mint { color: var(--accent-mint); }
.icon-mint::before { background: var(--accent-mint); }
.icon-rose { color: var(--accent-rose); }
.icon-rose::before { background: var(--accent-rose); }

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.feature-card p {
  color: var(--text-dim);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ============================================================
   Screenshots
   ============================================================ */
.screenshots {
  padding: 80px 0 100px;
  position: relative;
  z-index: 1;
}
.shot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}
.shot {
  margin: 0;
}
.shot-frame {
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--bg-elev-2);
  border: 1px solid var(--border-hi);
  box-shadow: var(--shadow-md);
  transition: transform 0.5s var(--ease-spring), box-shadow 0.5s;
  position: relative;
}
.shot-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 60%, rgba(180, 160, 255, 0.08));
  pointer-events: none;
}
.shot-frame:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: var(--shadow-lg);
}
.shot-frame img {
  width: 100%;
  height: auto;
  display: block;
}
.shot figcaption {
  margin-top: 16px;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.95rem;
  font-style: italic;
}

/* ============================================================
   Migration card
   ============================================================ */
.from-binot {
  padding: 80px 0;
  position: relative;
  z-index: 1;
}
.migration-card {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 40px;
  background: var(--surface);
  border: 1px solid var(--border-hi);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}
.migration-card::before {
  content: "";
  position: absolute;
  top: -100px; right: -100px;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(0, 217, 192, 0.15), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.migration-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border-hi);
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--secondary);
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.migration-card h2 {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.migration-card p {
  color: var(--text-dim);
  margin-bottom: 24px;
}
.migration-steps {
  padding-left: 0;
  list-style: none;
  counter-reset: step;
}
.migration-steps li {
  position: relative;
  padding: 12px 0 12px 48px;
  counter-increment: step;
  border-bottom: 1px solid var(--border);
}
.migration-steps li:last-child { border-bottom: none; }
.migration-steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 12px;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  color: #0F0F1A;
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ============================================================
   Final CTA
   ============================================================ */
.final-cta {
  padding: 100px 0 80px;
  text-align: center;
  position: relative;
  z-index: 1;
}
.final-cta h2 {
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 32px;
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
  padding: 60px 0 32px;
  background: var(--bg-elev-1);
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 1;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.footer-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
}
.footer-brand strong { display: block; font-weight: 700; }
.footer-brand span { font-size: 0.85rem; color: var(--text-dim); }
.footer-links h4 {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.footer-links a {
  display: block;
  color: var(--text-dim);
  font-size: 0.9rem;
  padding: 4px 0;
  transition: color 0.2s, transform 0.2s;
}
.footer-links a:hover {
  color: var(--primary);
  transform: translateX(2px);
}
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}
.footer-bottom p { margin: 4px 0; }
.footer-mono {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  opacity: 0.7;
}

/* ============================================================
   Reveal animations (Intersection Observer)
   ============================================================ */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease-smooth), transform 0.8s var(--ease-spring);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-float] {
  animation: float 6s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .hero { padding: 60px 0 100px; }
  .hero-icon { width: 112px; height: 112px; }
  .features, .screenshots, .from-binot, .final-cta { padding: 60px 0; }
  .migration-card { padding: 32px 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .btn { padding: 12px 20px; font-size: 0.9rem; }
}