:root {
  --bg: #f7f7f4;
  --surface: #ffffff;
  --ink: #16181d;
  --muted: #5b616e;
  --line: #e3e3de;
  --accent: #0f766e;
  --accent-dark: #115e59;
  --accent-soft: #e6f2f0;
  --accent-ink: #0b4f49;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  line-height: 1.5;
}
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

.top, main, .foot { max-width: 1120px; margin: 0 auto; padding-left: 16px; padding-right: 16px; }
@media (min-width: 720px) { .top, main, .foot { padding-left: 32px; padding-right: 32px; } }

/* Header */
.top { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 20px; padding-bottom: 20px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand__mark { width: 36px; height: 36px; border-radius: 10px; background: var(--accent); display: flex; align-items: center; justify-content: center; }
.brand__name { font-size: 20px; font-weight: 800; letter-spacing: -0.02em; }
.top__links { display: flex; align-items: center; gap: 20px; font-size: 14px; font-weight: 600; color: var(--muted); }
.top__links a:hover { color: var(--ink); }
@media (max-width: 560px) { .top__links a:not(.btn) { display: none; } }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 48px; padding: 0 20px; border-radius: 12px; font-weight: 800; font-size: 15px; transition: background 0.15s, border-color 0.15s; }
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { background: var(--accent-dark); }
.btn--outline { border: 1.5px solid var(--ink); color: var(--ink); }
.btn--outline:hover { background: var(--surface); }
.btn--ghost { min-height: 44px; padding: 0 14px; background: var(--surface); border: 1px solid var(--line); color: var(--ink); font-size: 14px; }

/* Hero */
.hero { display: grid; gap: 48px; align-items: center; padding: 32px 0 64px; }
@media (min-width: 900px) { .hero { grid-template-columns: 1.2fr 1fr; padding: 56px 0 96px; } }
.eyebrow { margin: 0 0 12px; font-size: 13px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent-ink); }
h1 { margin: 0; font-size: clamp(36px, 6vw, 60px); line-height: 1.05; font-weight: 800; letter-spacing: -0.03em; max-width: 14ch; }
.lede { margin: 20px 0 0; font-size: 18px; color: var(--muted); max-width: 52ch; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.fine { margin: 14px 0 0; font-size: 13px; color: var(--muted); }

/* Phone mockup (decorative) */
.phone { justify-self: center; width: 280px; height: 560px; padding: 12px; border-radius: 40px; background: var(--ink); box-shadow: 0 30px 60px rgba(22, 24, 29, 0.18); }
.phone__screen { height: 100%; border-radius: 30px; background: var(--bg); padding: 20px 14px; display: flex; flex-direction: column; gap: 12px; overflow: hidden; font-size: 11px; }
.m-head { display: flex; align-items: center; gap: 8px; font-size: 15px; }
.m-logo { width: 26px; height: 26px; border-radius: 8px; background: var(--accent); }
.m-lock { margin-left: auto; width: 30px; height: 30px; border-radius: 9px; background: var(--surface); border: 1px solid var(--line); }
.m-banner { padding: 8px 10px; border-radius: 10px; background: var(--accent-soft); color: var(--accent-ink); font-weight: 600; }
.m-chips { display: flex; gap: 6px; white-space: nowrap; }
.m-chips i { font-style: normal; font-weight: 600; padding: 6px 10px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface); }
.m-chips i.on { background: var(--ink); color: #fff; border-color: var(--ink); }
.m-card { display: flex; flex-direction: column; gap: 8px; }
.m-thumb { aspect-ratio: 16 / 9; border-radius: 12px; }
.m-line { display: flex; gap: 8px; align-items: center; font-size: 12px; }
.m-line span { flex: 0 0 auto; width: 24px; height: 24px; border-radius: 999px; }

/* Sections */
.section { padding: 56px 0; border-top: 1px solid var(--line); }
.section h2 { margin: 0 0 28px; font-size: clamp(26px, 4vw, 36px); font-weight: 800; letter-spacing: -0.02em; }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.feature { padding: 22px; border-radius: 16px; background: var(--surface); border: 1px solid var(--line); }
.feature__num { display: inline-flex; width: 32px; height: 32px; border-radius: 999px; background: var(--accent-soft); color: var(--accent-ink); font-weight: 800; align-items: center; justify-content: center; }
.feature h3 { margin: 14px 0 6px; font-size: 17px; font-weight: 800; }
.feature p { margin: 0; font-size: 15px; color: var(--muted); }

.section--card { margin-bottom: 56px; padding: 32px 20px; border: 0; border-radius: 24px; background: var(--surface); }
@media (min-width: 720px) { .section--card { padding: 48px; } }
.steps { margin: 0; padding-left: 22px; display: flex; flex-direction: column; gap: 12px; font-size: 16px; max-width: 64ch; }
.steps li::marker { font-weight: 800; color: var(--accent); }

.foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; padding-top: 24px; padding-bottom: 32px; font-size: 13px; color: var(--muted); border-top: 1px solid var(--line); }