/* ===== Design Tokens ===== */
:root {
  /* Colors */
  --bg-primary: #0a0a12;
  --bg-secondary: #0f0e1a;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-hover: rgba(255, 255, 255, 0.14);

  --text-primary: #f0eef6;
  --text-secondary: #9b97b0;
  --text-muted: #6b6680;

  --accent-orange: #ff6b35;
  --accent-orange-glow: rgba(255, 107, 53, 0.35);
  --accent-cyan: #00d4ff;
  --accent-cyan-glow: rgba(0, 212, 255, 0.25);
  --accent-purple: #a855f7;
  --accent-purple-glow: rgba(168, 85, 247, 0.25);

  /* Typography */
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --fs-hero: clamp(2.8rem, 6vw, 5rem);
  --fs-h2: clamp(1.8rem, 3.5vw, 2.8rem);
  --fs-h3: clamp(1.15rem, 2vw, 1.4rem);
  --fs-body: 1.05rem;
  --fs-small: 0.875rem;
  --fs-xs: 0.75rem;

  /* Spacing */
  --section-pad: clamp(4rem, 10vh, 8rem);
  --container-max: 1140px;

  /* Misc */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-display);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ===== Ambient Background ===== */
.ambient-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.ambient-bg .orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.35;
  animation: orbFloat 18s ease-in-out infinite alternate;
}

.ambient-bg .orb--orange {
  width: 500px;
  height: 500px;
  background: var(--accent-orange);
  top: -10%;
  left: -8%;
  opacity: 0.2;
}

.ambient-bg .orb--cyan {
  width: 420px;
  height: 420px;
  background: var(--accent-cyan);
  bottom: 5%;
  right: -5%;
  opacity: 0.15;
  animation-delay: -6s;
}

.ambient-bg .orb--purple {
  width: 350px;
  height: 350px;
  background: var(--accent-purple);
  top: 40%;
  left: 50%;
  opacity: 0.12;
  animation-delay: -12s;
}

@keyframes orbFloat {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, -30px) scale(1.1); }
  100% { transform: translate(-20px, 20px) scale(0.95); }
}

/* ===== Grid Overlay (subtle) ===== */
.grid-overlay {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

/* ===== Container ===== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2.5rem);
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 0;
  transition: var(--transition-smooth);
  background: transparent;
}

.nav.scrolled {
  background: rgba(10, 10, 18, 0.8);
  backdrop-filter: blur(20px) saturate(1.5);
  -webkit-backdrop-filter: blur(20px) saturate(1.5);
  border-bottom: 1px solid var(--glass-border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.nav__icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
}

.nav__title {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav__link {
  font-size: var(--fs-small);
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  font-weight: 500;
}

.nav__link:hover {
  color: var(--text-primary);
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.2rem;
  background: var(--accent-orange);
  color: #fff;
  font-size: var(--fs-small);
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  box-shadow: 0 0 20px var(--accent-orange-glow);
}

.nav__cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 30px var(--accent-orange-glow);
}

/* ===== Hero Section ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 5rem;
  position: relative;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: 100px;
  font-size: var(--fs-xs);
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(10px);
}

.hero__badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #34d399;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.4); }
  50% { opacity: 0.8; box-shadow: 0 0 0 6px rgba(52, 211, 153, 0); }
}

.hero__heading {
  font-size: var(--fs-hero);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 1.5rem;
}

.hero__heading .gradient-text {
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-cyan));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__sub {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 520px;
  margin-bottom: 2.5rem;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.8rem;
  font-size: var(--fs-body);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent-orange), #e85d2a);
  color: #fff;
  box-shadow: 0 4px 30px var(--accent-orange-glow);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 40px var(--accent-orange-glow);
}

.btn--ghost {
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  background: var(--bg-card);
  backdrop-filter: blur(10px);
}

.btn--ghost:hover {
  border-color: var(--glass-border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.hero__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__img-wrapper {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  box-shadow:
    0 0 60px var(--accent-cyan-glow),
    0 20px 80px rgba(0, 0, 0, 0.4);
  animation: heroFloat 6s ease-in-out infinite;
}

.hero__img-wrapper img {
  width: 100%;
  display: block;
}

@keyframes heroFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ===== Install Banner ===== */
.install-banner {
  margin-top: 3rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 1.2rem;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  color: var(--text-secondary);
  max-width: max-content;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.install-banner:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 20px var(--accent-cyan-glow);
}

.install-banner__prefix {
  color: var(--accent-cyan);
  user-select: none;
}

.install-banner__copy {
  color: var(--text-muted);
  font-size: var(--fs-xs);
  margin-left: auto;
  padding-left: 1rem;
  transition: color var(--transition-fast);
}

.install-banner:hover .install-banner__copy {
  color: var(--text-secondary);
}

/* ===== Section Shared ===== */
.section {
  padding: var(--section-pad) 0;
}

.section__label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-cyan);
  margin-bottom: 1rem;
}

.section__label::before {
  content: '';
  width: 20px;
  height: 2px;
  background: var(--accent-cyan);
  border-radius: 2px;
}

.section__heading {
  font-size: var(--fs-h2);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
}

.section__sub {
  font-size: var(--fs-body);
  color: var(--text-secondary);
  max-width: 560px;
  margin-bottom: 3.5rem;
}

/* ===== Features Grid ===== */
.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.feature-card {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-orange), transparent);
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.feature-card:hover {
  border-color: var(--glass-border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
}

.feature-card__icon--orange {
  background: rgba(255, 107, 53, 0.1);
  color: var(--accent-orange);
  border: 1px solid rgba(255, 107, 53, 0.15);
}

.feature-card__icon--cyan {
  background: rgba(0, 212, 255, 0.1);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 212, 255, 0.15);
}

.feature-card__icon--purple {
  background: rgba(168, 85, 247, 0.1);
  color: var(--accent-purple);
  border: 1px solid rgba(168, 85, 247, 0.15);
}

.feature-card__title {
  font-size: var(--fs-h3);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.6rem;
}

.feature-card__desc {
  font-size: var(--fs-small);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== How It Works ===== */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  counter-reset: step;
}

.step {
  position: relative;
  counter-increment: step;
}

.step__number {
  font-size: 3.5rem;
  font-weight: 900;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.15), rgba(0, 212, 255, 0.1));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 1rem;
}

.step__title {
  font-size: var(--fs-h3);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.step__desc {
  font-size: var(--fs-small);
  color: var(--text-secondary);
  line-height: 1.7;
}

.step__connector {
  position: absolute;
  top: 1.75rem;
  right: -0.75rem;
  width: calc(100% - 3rem);
  left: calc(3rem + 0.75rem);
  height: 1px;
  background: linear-gradient(90deg, var(--glass-border), transparent);
}

.step:last-child .step__connector {
  display: none;
}

/* ===== Demo Section ===== */
.demo {
  text-align: center;
}

.demo .section__sub {
  margin-left: auto;
  margin-right: auto;
}

.demo__image-wrap {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  box-shadow:
    0 0 80px var(--accent-purple-glow),
    0 30px 100px rgba(0, 0, 0, 0.5);
  max-width: 800px;
  margin: 0 auto;
}

.demo__image-wrap img {
  width: 100%;
  display: block;
}

.demo__image-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--bg-primary) 0%, transparent 30%);
  pointer-events: none;
}

/* ===== Testimonial / Social Proof ===== */
.social-proof {
  text-align: center;
}

.social-proof .section__sub {
  margin-left: auto;
  margin-right: auto;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 4rem;
}

.stat {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
}

.stat__number {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-cyan));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat__label {
  font-size: var(--fs-small);
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

/* ===== CTA Section ===== */
.cta-section {
  text-align: center;
  padding: var(--section-pad) 0;
  position: relative;
}

.cta__card {
  padding: clamp(3rem, 6vw, 5rem);
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.06), rgba(0, 212, 255, 0.04));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
}

.cta__card::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 20%;
  right: 20%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-orange), var(--accent-cyan), transparent);
}

.cta__heading {
  font-size: var(--fs-h2);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.cta__sub {
  font-size: var(--fs-body);
  color: var(--text-secondary);
  max-width: 480px;
  margin: 0 auto 2.5rem;
}

.cta__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.footer {
  padding: 3rem 0;
  border-top: 1px solid var(--glass-border);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer__left {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.footer__icon {
  width: 24px;
  height: 24px;
  border-radius: 4px;
}

.footer__text {
  font-size: var(--fs-small);
  color: var(--text-muted);
}

.footer__links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.footer__link {
  font-size: var(--fs-small);
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--text-secondary);
}

/* ===== Animations (Scroll Reveal) ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.35s; }

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .hero__grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__sub {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__actions {
    justify-content: center;
  }

  .install-banner {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__visual {
    order: -1;
  }

  .hero__img-wrapper {
    max-width: 400px;
  }

  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .step__connector {
    display: none;
  }
}

@media (max-width: 640px) {
  .nav__links {
    display: none;
  }

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

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

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

  .hero__heading {
    font-size: clamp(2rem, 8vw, 3rem);
  }
}