:root {
  --bg: #F4F8F3;
  --surface: #FFFFFF;
  --surface-2: #E8F2E6;
  --ink: #142016;
  --ink-2: #4A5A4C;
  --line: #D6E3D3;
  --primary: #2E7D32;
  --primary-ink: #FFFFFF;
  --primary-soft: #C8E6C9;
  --teal: #00796B;
  --ok: #2E7D32;
  --warn: #B7791F;
  --bad: #C62828;
  --radius: 18px;
  --shadow: 0 10px 30px -18px rgba(20, 40, 20, .35);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0F1610;
    --surface: #172019;
    --surface-2: #1E2B20;
    --ink: #E3EDE2;
    --ink-2: #A7B8A8;
    --line: #2B3A2D;
    --primary: #81C784;
    --primary-ink: #00390F;
    --primary-soft: #1B5E20;
    --teal: #4DB6AC;
    --ok: #81C784;
    --warn: #F9C74F;
    --bad: #EF7A7A;
    --shadow: 0 10px 30px -18px rgba(0, 0, 0, .8);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 17px/1.6 "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--primary); }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.2rem); font-weight: 700; }
h3 { font-size: 1.12rem; font-weight: 700; }
p { margin: 0 0 1em; }

.wrap { width: min(1100px, 100% - 32px); margin-inline: auto; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 16px; z-index: 10; background: var(--surface); padding: 8px 12px; border-radius: 8px; }

/* Nav */
.nav { position: sticky; top: 0; z-index: 5; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav__in { display: flex; align-items: center; gap: 20px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand__mark { width: 36px; height: 36px; }
.brand__name { font-weight: 700; font-size: 1.15rem; display: flex; flex-direction: column; line-height: 1.1; }
.brand__sub { font-weight: 500; font-size: .72rem; color: var(--ink-2); }
.nav__links { display: flex; gap: 20px; margin-left: auto; }
.nav__links a { color: var(--ink-2); text-decoration: none; font-weight: 500; font-size: .95rem; }
.nav__links a:hover { color: var(--ink); }
@media (max-width: 760px) { .nav__links { display: none; } .nav .btn { margin-left: auto; } }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 22px; border-radius: 999px; font-weight: 600; text-decoration: none; border: 1.5px solid transparent; transition: transform .15s ease, background .15s ease; }
.btn:hover { transform: translateY(-1px); }
.btn:focus-visible { outline: 3px solid var(--teal); outline-offset: 2px; }
.btn--primary { background: var(--primary); color: var(--primary-ink); }
.btn--outline { border-color: var(--line); color: var(--ink); background: var(--surface); }
.btn--sm { padding: 8px 16px; font-size: .9rem; }

.eyebrow { display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--teal); }

/* Hero */
.hero { padding: 64px 0 40px; }
.hero__grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.hero__lead { font-size: 1.15rem; color: var(--ink-2); max-width: 34em; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0 18px; }
.hero__facts { display: flex; flex-wrap: wrap; gap: 8px 18px; padding: 0; margin: 0; list-style: none; color: var(--ink-2); font-size: .92rem; }
.hero__facts li::before { content: "✓ "; color: var(--primary); font-weight: 700; }
@media (max-width: 860px) { .hero__grid { grid-template-columns: 1fr; } .hero { padding-top: 40px; } }

/* Phone mockup */
.phone { width: min(320px, 100%); margin-inline: auto; background: var(--surface); border: 1px solid var(--line); border-radius: 36px; padding: 22px 18px; box-shadow: var(--shadow); }
.phone__top { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 14px; }
.phone__top strong { font-size: 1.05rem; }
.phone__top span { font-size: .8rem; color: var(--ink-2); }
.meter { background: var(--surface-2); border-radius: 14px; padding: 12px 14px; margin-bottom: 10px; }
.meter__row { display: flex; justify-content: space-between; font-size: .88rem; font-weight: 600; }
.meter__row small { font-weight: 500; color: var(--ink-2); }
.meter__bar { height: 10px; border-radius: 99px; background: var(--line); margin-top: 8px; overflow: hidden; }
.meter__bar i { display: block; height: 100%; border-radius: inherit; }
.meter__state { font-size: .78rem; font-weight: 700; margin-top: 6px; }
.is-ok i, .is-ok .meter__state { background: var(--ok); color: var(--ok); }
.is-warn i, .is-warn .meter__state { background: var(--warn); color: var(--warn); }
.is-ok .meter__state, .is-warn .meter__state { background: none; }
.phone__log { margin-top: 14px; border-top: 1px dashed var(--line); padding-top: 12px; font-size: .85rem; color: var(--ink-2); }
.phone__log p { display: flex; justify-content: space-between; margin: 0 0 6px; }

/* Sections */
.section { padding: 64px 0; }
.section--alt { background: var(--surface); border-block: 1px solid var(--line); }
.section__head { max-width: 40em; margin-bottom: 32px; }
.section__head p { color: var(--ink-2); }

.limits { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.limit { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.section--alt .limit { background: var(--bg); }
.limit__val { font-size: 2rem; font-weight: 700; color: var(--primary); line-height: 1; margin: 6px 0 4px; }
.limit p { color: var(--ink-2); margin: 0; font-size: .95rem; }
.note { font-size: .85rem; color: var(--ink-2); margin-top: 16px; }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feature { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.feature__ic { width: 44px; height: 44px; border-radius: 12px; background: var(--primary-soft); color: var(--primary); display: grid; place-items: center; margin-bottom: 14px; }
.feature__ic svg { width: 24px; height: 24px; }
.feature p { color: var(--ink-2); margin: 0; font-size: .95rem; }
@media (max-width: 900px) { .features, .limits { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .features, .limits { grid-template-columns: 1fr; } }

.steps { counter-reset: s; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; padding: 0; margin: 0; list-style: none; }
.steps li { counter-increment: s; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.steps li::before { content: counter(s); display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--primary); color: var(--primary-ink); font-weight: 700; margin-bottom: 12px; }
.steps p { color: var(--ink-2); margin: 0; font-size: .95rem; }
@media (max-width: 760px) { .steps { grid-template-columns: 1fr; } }

.privacy { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; }
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.checks li { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; }
.checks strong { display: block; }
.checks span { color: var(--ink-2); font-size: .93rem; }
@media (max-width: 760px) { .privacy { grid-template-columns: 1fr; } }

.faq details { background: var(--bg); border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; margin-bottom: 10px; }
.faq summary { font-weight: 600; cursor: pointer; }
.faq details p { color: var(--ink-2); margin: 10px 0 0; }

.cta { text-align: center; padding: 72px 0; }
.cta p { color: var(--ink-2); max-width: 32em; margin-inline: auto; }
.cta .hero__cta { justify-content: center; }

/* Footer */
.foot { border-top: 1px solid var(--line); padding: 28px 0; color: var(--ink-2); font-size: .9rem; }
.foot__bar { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; }
.foot a { color: var(--ink-2); }

/* Document pages */
.doc { max-width: 760px; padding: 48px 0 72px; }
.doc h2 { font-size: 1.3rem; margin-top: 2em; }
.doc li { margin-bottom: .4em; }
.doc p, .doc li { color: var(--ink); }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn { transition: none; } }