/* Natter — shared styles for landing, privacy, terms */
:root {
  --ink: #121311;
  --ink-soft: #2A2C27;
  --white: #FFFFFF;
  --grey: #F2F3EE;
  --grey-line: #E8E9E3;
  --t2: #6E726A;
  --t3: #A2A69D;
  --volt: #CBF24A;
  --volt-pale: #F3FBD6;
  --r-card: 28px;
  --r-tile: 20px;
  --r-pill: 999px;
  --maxw: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

h1, h2, h3, .display {
  font-family: "Plus Jakarta Sans", sans-serif;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.08;
  margin: 0 0 0.4em;
}

.mono { font-family: "JetBrains Mono", monospace; }

a { color: var(--ink); text-decoration: none; }

/* marker highlight signature element */
.mark {
  position: relative;
  white-space: nowrap;
  z-index: 0;
}
.mark::before {
  content: "";
  position: absolute;
  left: -0.1em; right: -0.1em;
  bottom: 0.05em;
  height: 0.55em;
  background: var(--volt);
  transform: rotate(-1.2deg);
  border-radius: 4px;
  z-index: -1;
}

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--grey-line);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.brand { display: flex; align-items: center; gap: 9px; font-family: "Plus Jakarta Sans"; font-weight: 800; font-size: 20px; }
.brand .dot {
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--volt); display: inline-block;
  border: 2px solid var(--ink);
}
.brand-nat {
  width: 34px; height: 34px; object-fit: contain;
  border-radius: 50%; background: var(--volt-pale);
  padding: 2px;
}
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { color: var(--t2); font-weight: 500; font-size: 15px; }
.nav-links a:hover { color: var(--ink); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: "Plus Jakarta Sans"; font-weight: 700; font-size: 16px;
  padding: 14px 26px; border-radius: var(--r-pill);
  border: 1px solid transparent; cursor: pointer; transition: transform .12s ease, box-shadow .12s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-ink { background: var(--ink); color: var(--white); }
.btn-ink .circle {
  width: 26px; height: 26px; border-radius: 50%; background: var(--volt);
  display: grid; place-items: center; color: var(--ink); font-size: 14px;
}
.btn-ghost { background: var(--white); color: var(--ink); border-color: var(--grey-line); }

/* ---------- hero ---------- */
.hero { padding: 72px 0 40px; }
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }
.eyebrow {
  font-family: "JetBrains Mono"; font-size: 13px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.14em; color: var(--t2); margin-bottom: 18px;
}
.hero h1 { font-size: clamp(40px, 6vw, 64px); }
.hero p.lead { font-size: 19px; color: var(--t2); max-width: 30em; margin: 0 0 28px; }
.cta-row { display: flex; gap: 14px; flex-wrap: wrap; }
.fineprint { color: var(--t3); font-size: 14px; margin-top: 16px; }

/* phone mockup */
.phone {
  width: 280px; margin: 0 auto;
  background: var(--ink); border-radius: 46px; padding: 12px;
  box-shadow: 0 40px 80px -30px rgba(18,19,17,0.45);
}
.phone-screen {
  background: var(--white); border-radius: 36px; overflow: hidden;
  height: 560px; display: flex; flex-direction: column; padding: 26px 22px;
}
.ps-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.ps-streak { background: var(--ink); color: var(--volt); font-family: "JetBrains Mono"; font-weight: 700; font-size: 14px; padding: 7px 14px; border-radius: var(--r-pill); }
.ps-gear { width: 34px; height: 34px; border-radius: 12px; background: var(--grey); }
.orb {
  width: 150px; height: 150px; border-radius: 50%; background: var(--volt);
  margin: 30px auto; position: relative;
  box-shadow: 0 0 0 14px var(--volt-pale);
}
.orb img {
  position: absolute; inset: 0; margin: auto;
  width: 84%; height: 84%; object-fit: contain;
  z-index: 1;
  filter: drop-shadow(0 6px 10px rgba(18,19,17,0.18));
}
.orb::after {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  animation: pulse 2.4s ease-out infinite; box-shadow: 0 0 0 0 var(--volt);
}
@keyframes pulse { to { box-shadow: 0 0 0 30px rgba(203,242,74,0); } }
.ps-card { background: var(--grey); border-radius: var(--r-tile); padding: 16px; margin-top: auto; }
.ps-card .q { font-family: "Plus Jakarta Sans"; font-weight: 700; font-size: 16px; }
.ps-card .m { color: var(--t2); font-size: 13px; margin-top: 4px; }
.ps-timer { text-align: center; font-family: "JetBrains Mono"; font-weight: 700; font-size: 26px; }
.ps-timer span { display: block; font-size: 12px; font-weight: 600; color: var(--t3); }

/* ---------- sections ---------- */
section { padding: 64px 0; }
.section-head { max-width: 36em; margin-bottom: 44px; }
.section-head .eyebrow { margin-bottom: 12px; }
.section-head h2 { font-size: clamp(30px, 4vw, 42px); }
.section-head p { color: var(--t2); font-size: 18px; margin: 0; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: var(--white); border: 1px solid var(--grey-line);
  border-radius: var(--r-card); padding: 28px;
}
.card.pale { background: var(--volt-pale); border-color: transparent; }
.card .ic {
  width: 46px; height: 46px; border-radius: 14px; background: var(--ink);
  display: grid; place-items: center; margin-bottom: 18px;
}
.card .ic .d { width: 18px; height: 18px; border-radius: 50%; background: var(--volt); }
.nat-badge {
  width: 84px; height: 84px; border-radius: 50%;
  background: var(--volt-pale); display: grid; place-items: center;
  margin-bottom: 18px;
}
.card.pale .nat-badge { background: var(--white); }
.nat-badge img { width: 70px; height: 70px; object-fit: contain; }
.card h3 { font-size: 20px; }
.card p { color: var(--t2); margin: 0; font-size: 15px; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.step .num { font-family: "JetBrains Mono"; font-weight: 700; font-size: 14px; color: var(--ink); background: var(--volt); display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; margin-bottom: 16px; }
.step h3 { font-size: 19px; }
.step p { color: var(--t2); margin: 0; font-size: 15px; }

/* cta band */
.band { background: var(--ink); color: var(--white); border-radius: var(--r-card); padding: 56px; text-align: center; }
.band-nat {
  width: 120px; height: 120px; margin: 0 auto 8px;
  border-radius: 50%; background: rgba(255,255,255,0.06);
  display: grid; place-items: center;
}
.band-nat img { width: 104px; height: 104px; object-fit: contain; }
.band h2 { color: var(--white); font-size: clamp(28px, 4vw, 40px); }
.band .mark::before { background: var(--volt); }
.band p { color: var(--t3); font-size: 18px; margin: 0 auto 28px; max-width: 32em; }

/* ---------- footer ---------- */
footer { border-top: 1px solid var(--grey-line); padding: 40px 0; margin-top: 40px; }
.foot-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.foot-links { display: flex; gap: 24px; }
.foot-links a, footer .muted { color: var(--t2); font-size: 14px; }

/* ---------- legal pages ---------- */
.legal { max-width: 760px; margin: 0 auto; padding: 56px 24px 80px; }
.legal .back { font-family: "JetBrains Mono"; font-size: 13px; color: var(--t2); display: inline-block; margin-bottom: 28px; }
.legal h1 { font-size: clamp(32px, 5vw, 46px); }
.legal .updated { font-family: "JetBrains Mono"; font-size: 13px; color: var(--t3); margin-bottom: 36px; }
.legal h2 { font-size: 24px; margin-top: 40px; }
.legal h3 { font-size: 18px; margin-top: 28px; }
.legal p, .legal li { color: var(--ink-soft); font-size: 16px; }
.legal a { text-decoration: underline; }
.legal ul { padding-left: 22px; }
.legal li { margin-bottom: 8px; }
.legal .note { background: var(--grey); border-radius: var(--r-tile); padding: 18px 22px; font-size: 15px; color: var(--t2); }

@media (max-width: 820px) {
  .hero-grid { grid-template-columns: 1fr; }
  .phone { order: -1; }
  .grid, .steps { grid-template-columns: 1fr; }
  .nav-links a:not(.btn) { display: none; }
  .band { padding: 40px 24px; }
}