/* File: css/style.css */
/* WatchBrowser — Main Stylesheet */
/* © 2025 AI Administration Limited */

/* ============================================
   DESIGN TOKENS
   Palette: Deep space black, electric cyan, 
   galaxy purple, Samsung blue, pure white
   Type: Space Grotesk (display/body) + Space Mono (code/data)
   Signature: Floating watch mockup with pulsing glow
============================================ */

:root {
  --black:       #050508;
  --dark:        #0C0C14;
  --surface:     #12121E;
  --surface2:    #1A1A2E;
  --cyan:        #00D4FF;
  --cyan-dim:    #00D4FF33;
  --purple:      #7B2FBE;
  --purple-dim:  #7B2FBE33;
  --samsung:     #1428A0;
  --samsung-dim: #1428A033;
  --white:       #FFFFFF;
  --white-70:    rgba(255,255,255,0.7);
  --white-40:    rgba(255,255,255,0.4);
  --white-10:    rgba(255,255,255,0.1);
  --white-05:    rgba(255,255,255,0.05);
  --gold:        #FFD700;

  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-mono:    'Space Mono', 'Courier New', monospace;

  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 20px;
  --r-xl: 32px;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-display);
  background: var(--black);
  color: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { border: none; cursor: pointer; font-family: inherit; background: none; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================
   NAVIGATION
============================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(5, 5, 8, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--white-10);
  transition: background 0.3s;
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 64px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}
.logo-icon { font-size: 1.3rem; }
.logo-text { color: var(--white); }
.logo-accent { color: var(--cyan); }

.nav-links {
  display: flex;
  gap: 28px;
  margin-left: auto;
}
.nav-links a {
  font-size: 0.9rem;
  color: var(--white-70);
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--white); }

.nav-cta { flex-shrink: 0; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  margin-left: auto;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all 0.3s;
}

.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 16px 24px 20px;
  border-top: 1px solid var(--white-10);
}
.nav-mobile a {
  font-size: 1rem;
  padding: 10px 0;
  color: var(--white-70);
  border-bottom: 1px solid var(--white-05);
}
.nav-mobile.open { display: flex; }

/* ============================================
   BUTTONS
============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  border-radius: var(--r-md);
  transition: all 0.2s;
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background: var(--cyan);
  color: var(--black);
  padding: 10px 20px;
  font-size: 0.9rem;
}
.btn-primary:hover {
  background: #33DDFF;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px var(--cyan-dim);
}

.btn-ghost {
  color: var(--white-70);
  padding: 10px 20px;
  font-size: 0.9rem;
  border: 1px solid var(--white-10);
}
.btn-ghost:hover { color: var(--white); border-color: var(--white-40); }

.btn-outline {
  border: 1px solid var(--cyan);
  color: var(--cyan);
  padding: 10px 20px;
  font-size: 0.9rem;
}
.btn-outline:hover {
  background: var(--cyan-dim);
}

.btn-white {
  background: var(--white);
  color: var(--black);
  padding: 12px 24px;
  font-size: 0.95rem;
}
.btn-white:hover { background: #e0e0e0; transform: translateY(-1px); }

.btn-sm { padding: 8px 16px; font-size: 0.85rem; }
.btn-lg { padding: 14px 28px; font-size: 1rem; border-radius: var(--r-lg); }
.btn-full { width: 100%; justify-content: center; }

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

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

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
}
.orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, var(--cyan) 0%, transparent 70%);
  top: -200px; left: -200px;
  animation: orb-float 8s ease-in-out infinite;
}
.orb-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, var(--purple) 0%, transparent 70%);
  bottom: -100px; right: -100px;
  animation: orb-float 10s ease-in-out infinite reverse;
}

@keyframes orb-float {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, -30px); }
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero .container { position: relative; z-index: 1; max-width: 600px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--cyan);
  background: var(--cyan-dim);
  border: 1px solid rgba(0,212,255,0.2);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 28px;
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
}
.badge-dot {
  width: 6px; height: 6px;
  background: var(--cyan);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-size: clamp(2.8rem, 7vw, 4.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 20px;
}
.title-accent {
  background: linear-gradient(135deg, var(--cyan) 0%, var(--purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--white-70);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 500px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
}
.stat { display: flex; flex-direction: column; gap: 2px; }
.stat-num {
  font-size: 1.4rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--cyan);
}
.stat-label { font-size: 0.75rem; color: var(--white-40); letter-spacing: 0.05em; text-transform: uppercase; }
.stat-div { width: 1px; height: 36px; background: var(--white-10); }

/* Watch mockup */
.watch-mockup-wrap {
  position: absolute;
  right: 5%;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1;
}

.watch-mockup {
  width: 160px;
  height: 190px;
  background: linear-gradient(145deg, #1a1a2e, #0d0d1a);
  border-radius: 44px;
  border: 3px solid rgba(255,255,255,0.12);
  box-shadow:
    0 0 60px var(--cyan-dim),
    0 0 120px rgba(0,212,255,0.08),
    inset 0 1px 0 rgba(255,255,255,0.1);
  padding: 12px;
  animation: watch-float 6s ease-in-out infinite;
}

@keyframes watch-float {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50% { transform: translateY(-12px) rotate(2deg); }
}

.watch-screen {
  width: 100%;
  height: 100%;
  background: var(--black);
  border-radius: 34px;
  overflow: hidden;
}

.mock-browser { height: 100%; display: flex; flex-direction: column; }
.mock-bar {
  background: #111122;
  padding: 6px 8px;
  display: flex;
  align-items: center;
}
.mock-url {
  font-family: var(--font-mono);
  font-size: 7px;
  color: var(--cyan);
  background: rgba(0,212,255,0.1);
  padding: 2px 6px;
  border-radius: 4px;
}
.mock-content { flex: 1; padding: 8px; display: flex; flex-direction: column; gap: 6px; }
.mock-video {
  flex: 1;
  background: #1a1a2e;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.mock-play { font-size: 20px; opacity: 0.8; }
.mock-line {
  height: 6px;
  background: var(--white-10);
  border-radius: 3px;
}
.mock-line.short { width: 60%; }

/* ============================================
   SECTION HEADERS
============================================ */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 16px;
}
.section-header h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 16px;
}
.section-header p {
  font-size: 1.05rem;
  color: var(--white-70);
  max-width: 500px;
  margin: 0 auto;
}

/* ============================================
   FEATURES
============================================ */
.features {
  padding: 120px 0;
  background: var(--dark);
}

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

.feature-card {
  background: var(--surface);
  border: 1px solid var(--white-10);
  border-radius: var(--r-lg);
  padding: 28px;
  transition: border-color 0.3s, transform 0.3s;
}
.feature-card:hover {
  border-color: var(--cyan);
  transform: translateY(-4px);
}
.feature-card--large {
  grid-column: span 2;
}

.feature-icon { font-size: 2rem; margin-bottom: 14px; }
.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}
.feature-card p {
  font-size: 0.9rem;
  color: var(--white-70);
  line-height: 1.65;
  margin-bottom: 16px;
}

.gesture-list { display: flex; flex-direction: column; gap: 8px; }
.gesture {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.85rem;
}
.gesture span:last-child { color: var(--white-70); }
.g-arrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--cyan);
  background: var(--cyan-dim);
  padding: 3px 8px;
  border-radius: 4px;
  min-width: 70px;
  text-align: center;
  flex-shrink: 0;
}

/* ============================================
   PLATFORMS
============================================ */
.platforms {
  padding: 120px 0;
  background: var(--black);
}

.platforms-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.platform-card {
  position: relative;
  border-radius: var(--r-xl);
  padding: 40px;
  border: 1px solid var(--white-10);
  transition: all 0.3s;
}
.platform-apple {
  background: linear-gradient(135deg, #1a1a2e 0%, #0d0d1a 100%);
  border-color: rgba(0,212,255,0.3);
}
.platform-apple:hover { box-shadow: 0 0 60px var(--cyan-dim); }
.platform-samsung {
  background: linear-gradient(135deg, #0d1433 0%, #050508 100%);
  border-color: rgba(20,40,160,0.4);
  opacity: 0.85;
}
.platform-samsung:hover { box-shadow: 0 0 60px var(--samsung-dim); opacity: 1; }

.platform-badge {
  position: absolute;
  top: 20px; right: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--gold);
  background: rgba(255,215,0,0.1);
  border: 1px solid rgba(255,215,0,0.3);
  padding: 4px 10px;
  border-radius: 100px;
}

.platform-logo { margin-bottom: 20px; }
.platform-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 10px;
}
.platform-card > p {
  font-size: 0.9rem;
  color: var(--white-70);
  margin-bottom: 24px;
  line-height: 1.6;
}

.platform-features { display: flex; flex-direction: column; gap: 8px; margin-bottom: 28px; }
.platform-features li { font-size: 0.88rem; color: var(--white-70); }

/* ============================================
   PRICING
============================================ */
.pricing {
  padding: 120px 0;
  background: var(--dark);
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: 760px;
  margin: 0 auto;
}

.price-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--white-10);
  border-radius: var(--r-xl);
  padding: 36px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.price-card--pro {
  border-color: var(--cyan);
  background: linear-gradient(145deg, #0d1a2e, #0a0a18);
  box-shadow: 0 0 40px rgba(0,212,255,0.1);
}

.price-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.72rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--black);
  background: var(--cyan);
  padding: 4px 14px;
  border-radius: 100px;
  white-space: nowrap;
}

.price-tier {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--white-70);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--font-mono);
}

.price-amount {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--white);
}
.price-amount span { font-size: 1rem; color: var(--white-40); font-weight: 400; }

.price-annual { font-size: 0.8rem; color: var(--cyan); margin-top: -12px; }

.price-features { display: flex; flex-direction: column; gap: 10px; flex: 1; }
.price-features li { font-size: 0.88rem; color: var(--white-70); }
.price-features li.muted { color: var(--white-40); }
.price-features li strong { color: var(--white); }

/* ============================================
   NOTIFY
============================================ */
.notify { padding: 80px 0; background: var(--black); }

.notify-card {
  background: linear-gradient(135deg, var(--surface) 0%, #0d1433 100%);
  border: 1px solid rgba(20,40,160,0.4);
  border-radius: var(--r-xl);
  padding: 60px;
  text-align: center;
}
.notify-card h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}
.notify-card > p {
  color: var(--white-70);
  margin-bottom: 28px;
  font-size: 1rem;
}

.notify-form {
  display: flex;
  gap: 10px;
  max-width: 440px;
  margin: 0 auto 12px;
}
.notify-input {
  flex: 1;
  background: var(--surface2);
  border: 1px solid var(--white-10);
  border-radius: var(--r-md);
  padding: 12px 16px;
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--white);
  outline: none;
  transition: border-color 0.2s;
}
.notify-input:focus { border-color: var(--samsung); }
.notify-input::placeholder { color: var(--white-40); }

.notify-small {
  font-size: 0.78rem;
  color: var(--white-40);
}
.notify-small a { color: var(--white-70); text-decoration: underline; }

/* ============================================
   DOWNLOAD
============================================ */
.download { padding: 100px 0; background: var(--dark); }

.download-inner {
  text-align: center;
}
.download-inner h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}
.download-inner > p {
  color: var(--white-70);
  margin-bottom: 36px;
}

.download-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.store-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--surface2);
  border: 1px solid var(--white-10);
  border-radius: var(--r-lg);
  padding: 14px 24px;
  transition: all 0.2s;
  min-width: 180px;
}
.store-btn:hover { transform: translateY(-2px); border-color: var(--white-40); }
.store-apple:hover { border-color: var(--cyan); box-shadow: 0 8px 24px var(--cyan-dim); }
.store-samsung:hover { border-color: #1428A0; box-shadow: 0 8px 24px var(--samsung-dim); }

.store-btn div { display: flex; flex-direction: column; text-align: left; }
.store-sub { font-size: 0.7rem; color: var(--white-40); }
.store-name { font-size: 0.95rem; font-weight: 600; }

/* ============================================
   FOOTER
============================================ */
.footer {
  background: var(--black);
  border-top: 1px solid var(--white-10);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand p {
  font-size: 0.88rem;
  color: var(--white-40);
  margin-top: 14px;
  line-height: 1.6;
  max-width: 280px;
}
.footer-copy {
  font-size: 0.78rem !important;
  margin-top: 20px !important;
}

.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--white-40);
  margin-bottom: 16px;
  font-family: var(--font-mono);
}
.footer-col a {
  display: block;
  font-size: 0.88rem;
  color: var(--white-70);
  margin-bottom: 10px;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--white); }

.footer-bottom {
  border-top: 1px solid var(--white-05);
  padding-top: 24px;
}
.footer-bottom p {
  font-size: 0.75rem;
  color: var(--white-40);
  line-height: 1.6;
}

/* ============================================
   RESPONSIVE
============================================ */
@media (max-width: 900px) {
  .watch-mockup-wrap { display: none; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .feature-card--large { grid-column: span 2; }
  .platforms-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: flex; }

  .hero { padding: 100px 0 60px; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-card--large { grid-column: span 1; }
  .pricing-grid { grid-template-columns: 1fr; }
  .notify-form { flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; }
  .notify-card { padding: 36px 24px; }
}

@media (prefers-reduced-motion: reduce) {
  .orb, .watch-mockup { animation: none; }
}