/* ===== MyToothLens — marketing site ===== */
:root {
  --bg: #0a0e12;
  --surface: #11161c;
  --surface-2: #0d1217;
  --border: #1d242c;
  --text: #f3f6f8;
  --muted: #93a1ad;
  --accent: #00e5ff;
  --accent-2: #36f1c4;
  --accent-ink: #06222a;
  --safe: #16e08a;
  --info: #38bdf8;
  --warn: #fbbf24;
  --radius: 14px;
  --maxw: 1120px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: "Manrope", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 24px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 14px;
  padding: 10px 18px;
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .2s ease;
  white-space: nowrap;
}
.btn--lg { padding: 14px 26px; font-size: 15px; }
.btn--primary {
  background: var(--accent);
  color: #06121a;
  box-shadow: 0 0 24px rgba(0, 229, 255, .22);
}
.btn--primary:hover { background: #5cefff; transform: translateY(-1px); }
.btn--outline { border-color: var(--border); color: var(--text); }
.btn--outline:hover { border-color: var(--accent); color: var(--accent); }
.btn--ghost { color: var(--muted); }
.btn--ghost:hover { color: var(--text); }

/* ===== Nav ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(10, 14, 18, .8);
  border-bottom: 1px solid var(--border);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 16px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand__logo { filter: drop-shadow(0 0 8px rgba(0, 229, 255, .45)); }
.brand__word { font-weight: 800; font-size: 20px; letter-spacing: -.02em; }
.brand--sm .brand__word { font-size: 17px; }

.nav__links { display: flex; gap: 28px; font-size: 14px; color: var(--muted); }
.nav__links a:hover { color: var(--text); }
.nav__cta { display: flex; align-items: center; gap: 10px; }

/* ===== Hero ===== */
.hero { position: relative; overflow: hidden; padding: 96px 0 72px; }
.hero__grid {
  position: absolute; inset: 0; pointer-events: none; opacity: .05;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 0%, #000 40%, transparent 100%);
}
.hero__inner { position: relative; text-align: center; }
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(0, 229, 255, .35);
  background: rgba(0, 229, 255, .08);
  padding: 7px 14px; border-radius: 999px; margin-bottom: 30px;
}
.pill__dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 10px var(--accent); animation: pulse 1.6s infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

.hero__title {
  font-size: clamp(40px, 7vw, 72px);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -.03em;
  margin-bottom: 22px;
}
.grad {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero__sub {
  max-width: 620px; margin: 0 auto 34px;
  font-size: 18px; color: var(--muted);
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }

/* ===== Stats ===== */
.stats {
  list-style: none; display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 16px; margin-top: 64px;
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  padding: 26px 0;
}
.stats li { text-align: center; }
.stats__v { display: block; font-size: 30px; font-weight: 800; color: var(--accent); }
.stats__l {
  display: block; margin-top: 4px;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted);
}

/* ===== Sections ===== */
.section { padding: 88px 0; }
.section--alt { background: var(--surface-2); border-block: 1px solid var(--border); }
.section__head { text-align: center; margin-bottom: 52px; }
.eyebrow {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px; letter-spacing: .2em; text-transform: uppercase; color: var(--accent);
}
.section__head h2, .split h2, .cta h2 {
  font-size: clamp(28px, 4.5vw, 40px); font-weight: 800; letter-spacing: -.02em; margin-top: 10px;
}

/* ===== Steps ===== */
.steps { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.step {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px 22px;
}
.step__no {
  font-family: "JetBrains Mono", monospace; font-size: 13px; color: var(--accent);
}
.step h3 { font-size: 17px; margin: 12px 0 8px; }
.step p { font-size: 14px; color: var(--muted); }

/* ===== Feature cards ===== */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px 24px;
  transition: border-color .2s ease, transform .2s ease;
}
.card:hover { border-color: rgba(0, 229, 255, .4); transform: translateY(-3px); }
.card__icon {
  width: 44px; height: 44px; display: grid; place-items: center;
  font-size: 20px; border-radius: 12px;
  background: rgba(0, 229, 255, .1); color: var(--accent); margin-bottom: 16px;
}
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { font-size: 14.5px; color: var(--muted); margin-bottom: 16px; }
.tag {
  display: inline-block; font-family: "JetBrains Mono", monospace;
  font-size: 10px; letter-spacing: .1em; text-transform: uppercase;
  padding: 4px 9px; border-radius: 6px;
}
.tag--safe { color: var(--safe); background: rgba(22, 224, 138, .12); }
.tag--info { color: var(--info); background: rgba(56, 189, 248, .12); }
.tag--warn { color: var(--warn); background: rgba(251, 191, 36, .12); }
.tag--accent { color: var(--accent); background: rgba(0, 229, 255, .12); }

/* ===== Split ===== */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.split__col h2 { margin-bottom: 20px; }
.ticks { list-style: none; margin: 0 0 26px; display: grid; gap: 12px; }
.ticks li { position: relative; padding-left: 30px; color: var(--muted); font-size: 15px; }
.ticks li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  color: var(--accent); font-weight: 800;
}

/* ===== CTA ===== */
.cta {
  text-align: center; padding: 96px 0;
  background:
    radial-gradient(ellipse 60% 100% at 50% 0%, rgba(0, 229, 255, .1), transparent 70%),
    var(--surface-2);
  border-top: 1px solid var(--border);
}
.cta p { color: var(--muted); margin: 14px 0 28px; font-size: 17px; }

/* ===== Footer ===== */
.footer { border-top: 1px solid var(--border); padding: 36px 0; }
.footer__inner {
  display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
}
.footer__copy { color: var(--muted); font-size: 13px; }
.footer__links { display: flex; gap: 22px; font-size: 13px; color: var(--muted); }
.footer__links a:hover { color: var(--text); }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .nav__links { display: none; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: 48px; }
}
@media (max-width: 560px) {
  .stats { grid-template-columns: repeat(2, 1fr); gap: 26px 16px; }
  .steps, .cards { grid-template-columns: 1fr; }
  .nav__cta .btn--ghost { display: none; }
  .footer__inner { flex-direction: column; text-align: center; }
}