:root {
  color-scheme: dark;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #eef2ff;
  background: #080b14;
  --bg: #060814;
  --surface: rgba(22, 28, 55, 0.9);
  --surface-strong: rgba(22, 28, 55, 0.98);
  --border: rgba(255, 255, 255, 0.08);
  --accent: #5cc0ff;
  --accent-soft: rgba(92, 192, 255, 0.18);
  --muted: #a3aed4;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top left, rgba(97, 196, 255, 0.12), transparent 25%),
              radial-gradient(circle at bottom right, rgba(129, 90, 255, 0.14), transparent 20%),
              var(--bg);
}

button, a {
  font: inherit;
}

.page-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 28px 40px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 0;
}

.brand {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-transform: none;
  font-family: inherit;
  color: #fff;
}

.nav-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: #fff;
}

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  border-radius: 14px;
  color: #fff;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: #fff;
  margin: 4px 0;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr;
  align-items: center;
  gap: 40px;
  padding: 60px 0 20px;
}

.eyebrow {
  margin: 0 0 14px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  color: var(--accent);
}

.hero-copy h1 {
  margin: 0;
  font-size: clamp(2.6rem, 5vw, 4rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
  max-width: 13ch;
}

.hero-copy p {
  margin: 24px 0 0;
  max-width: 54ch;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 24px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.primary {
  background: linear-gradient(135deg, #5cc0ff, #6a7dff);
  color: #060814;
}

.secondary {
  border: 1px solid rgba(255,255,255,0.12);
  color: #fff;
  background: transparent;
}

.hero-card {
  position: relative;
  display: flex;
  justify-content: center;
}

.card-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle, rgba(92,192,255,0.28), transparent 45%);
  filter: blur(40px);
  z-index: 0;
}

.device-mockup {
  position: relative;
  width: min(360px, 100%);
  border-radius: 40px;
  padding: 28px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  z-index: 1;
  overflow: hidden;
}

.phone-screen {
  background: #0b1430;
  border-radius: 28px;
  padding: 24px;
  min-height: 420px;
  display: grid;
  gap: 22px;
}

.phone-header {
  height: 6px;
  width: 60px;
  background: rgba(255,255,255,0.12);
  border-radius: 999px;
  margin: 0 auto;
}

.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.stats div {
  padding: 18px;
  background: rgba(255,255,255,0.04);
  border-radius: 22px;
}

.stats span {
  display: block;
  font-size: 1.85rem;
  font-weight: 700;
  color: #fff;
}

.stats small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
}

.progress-wrap {
  padding: 20px;
  background: rgba(255,255,255,0.05);
  border-radius: 24px;
}

.progress-bar {
  width: 72%;
  height: 14px;
  border-radius: 999px;
  background: linear-gradient(90deg, #5cc0ff, #7d8cff);
}

.screen-text {
  color: var(--muted);
}

.section {
  padding: 60px 0;
}

.section-intro {
  max-width: 720px;
}

.section-intro h2 {
  margin: 12px 0 0;
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.08;
}

.feature-grid .grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-top: 36px;
}

.feature-card {
  padding: 28px;
  border-radius: 28px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
}

.feature-card h3 {
  margin: 0 0 12px;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 38px;
  align-items: start;
}

.steps {
  display: grid;
  gap: 18px;
  margin-top: 32px;
}

.step-card {
  padding: 26px;
  border-radius: 26px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
}

.step-card strong {
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: rgba(92,192,255,0.16);
  color: #5cc0ff;
  font-size: 1rem;
  margin-bottom: 16px;
}

.step-card h3 {
  margin: 0 0 10px;
}

.download {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.download-copy h2 {
  margin: 14px 0 0;
}

.download-copy p {
  color: var(--muted);
  max-width: 54ch;
}

.highlight-note {
  margin: 18px 0 0;
  color: #eef2ff;
  font-weight: 600;
  background: rgba(92,192,255,0.1);
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px solid rgba(92,192,255,0.18);
  max-width: 54ch;
}

.waitlist-form {
  margin-top: 32px;
  display: grid;
  gap: 18px;
}

.waitlist-form label {
  color: #f5f7ff;
  font-weight: 600;
}

.waitlist-actions {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  align-items: center;
}

.waitlist-form input {
  width: 100%;
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.05);
  color: #fff;
}

.waitlist-form input::placeholder {
  color: rgba(227, 234, 255, 0.55);
}

.form-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.store-btn {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  min-width: 170px;
  padding: 18px 20px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.04);
  color: #fff;
  text-decoration: none;
}

.store-btn span {
  font-weight: 700;
  font-size: 1rem;
}

.store-btn small {
  color: var(--muted);
  margin-top: 6px;
}

.footer {
  padding-top: 42px;
  border-top: 1px solid rgba(255,255,255,0.08);
  color: var(--muted);
  text-align: center;
}

@media (max-width: 980px) {
  .hero, .split, .download {
    grid-template-columns: 1fr;
  }

  .page-wrapper {
    padding: 20px 22px 36px;
  }
}

@media (max-width: 720px) {
  .topbar {
    flex-wrap: wrap;
    justify-content: space-between;
  }

  .nav-links {
    width: 100%;
    display: none;
    flex-direction: column;
    background: rgba(6, 8, 20, 0.96);
    padding: 18px 16px;
    border-radius: 22px;
    border: 1px solid rgba(255,255,255,0.08);
  }

  .nav-links.show {
    display: flex;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .hero-copy h1 {
    font-size: clamp(2.2rem, 7vw, 3rem);
  }

  .feature-grid .grid,
  .testimonial-grid,
  .steps {
    gap: 18px;
  }
}

@media (max-width: 520px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  .device-mockup {
    padding: 20px;
  }
}