:root {
  color-scheme: light;
  --ink: #17211e;
  --muted: #53635e;
  --primary: #256b5f;
  --primary-dark: #174d44;
  --primary-soft: #d9efe9;
  --accent: #b15a2a;
  --accent-soft: #ffdbc8;
  --surface: #ffffff;
  --background: #eef3f1;
  --line: #d7e2de;
  --shadow: 0 24px 60px rgba(23, 77, 68, 0.12);
  --radius-lg: 28px;
  --radius-md: 18px;
  --content: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

a { color: var(--primary); text-underline-offset: 3px; }
a:hover { color: var(--primary-dark); }
img { display: block; max-width: 100%; }

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 20;
  padding: 9px 14px;
  color: #fff;
  background: var(--primary-dark);
  border-radius: 10px;
  transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(215, 226, 222, 0.85);
  background: rgba(238, 243, 241, 0.92);
  backdrop-filter: blur(14px);
}

.nav {
  width: min(calc(100% - 40px), var(--content));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 760;
  text-decoration: none;
  letter-spacing: -0.02em;
}
.brand img { width: 38px; height: 38px; }

.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-links a { color: var(--muted); font-size: 0.92rem; font-weight: 650; text-decoration: none; }
.nav-links a:hover { color: var(--primary); }
.lang-link {
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
}

.container { width: min(calc(100% - 40px), var(--content)); margin: 0 auto; }

.hero {
  position: relative;
  overflow: hidden;
  padding: 92px 0 78px;
}
.hero::before {
  content: "";
  position: absolute;
  width: 520px;
  height: 520px;
  top: -270px;
  right: -90px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(166, 242, 226, 0.9), rgba(166, 242, 226, 0));
  pointer-events: none;
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(320px, 0.88fr);
  gap: 72px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 20px;
  color: var(--primary-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 20px; height: 2px; background: var(--accent); }
h1, h2, h3 { margin-top: 0; line-height: 1.12; letter-spacing: -0.035em; }
h1 { max-width: 720px; margin-bottom: 24px; font-size: clamp(3rem, 7vw, 5.8rem); font-weight: 820; }
.hero-copy { max-width: 650px; margin: 0 0 32px; color: var(--muted); font-size: clamp(1.06rem, 2vw, 1.25rem); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 21px;
  border: 1px solid var(--primary);
  border-radius: 14px;
  color: #fff;
  background: var(--primary);
  font-weight: 750;
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(37, 107, 95, 0.18);
}
.button:hover { color: #fff; background: var(--primary-dark); }
.button.secondary { color: var(--primary-dark); background: transparent; box-shadow: none; }
.button.secondary:hover { background: var(--primary-soft); }
.button.store-button {
  min-width: 156px;
  min-height: 58px;
  justify-content: flex-start;
  gap: 12px;
  padding: 8px 18px;
  border-color: var(--primary);
  background: var(--primary);
  box-shadow: 0 10px 24px rgba(37, 107, 95, 0.18);
}
.button.store-button:hover { border-color: var(--primary-dark); background: var(--primary-dark); }
.store-icon { width: 27px; height: 27px; flex: 0 0 auto; color: #fff; }
.store-copy { color: #fff; line-height: 1; text-align: left; }
.store-copy strong { font-size: 1rem; font-weight: 800; }

.phone {
  width: min(100%, 390px);
  margin-left: auto;
  padding: 18px;
  border: 1px solid rgba(255,255,255,.65);
  border-radius: 42px;
  background: #17211e;
  box-shadow: var(--shadow);
  transform: rotate(2deg);
}
.phone-screen { min-height: 540px; padding: 30px 22px; border-radius: 28px; background: #f9fcfb; }
.phone-top { display: flex; justify-content: space-between; margin-bottom: 26px; color: var(--muted); font-size: .78rem; font-weight: 700; }
.phone h2 { margin-bottom: 6px; font-size: 1.8rem; }
.phone-date { margin: 0 0 24px; color: var(--muted); }
.lesson {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}
.lesson-time { color: var(--primary); font-size: .9rem; font-weight: 800; }
.lesson strong { display: block; margin-bottom: 2px; }
.lesson span { color: var(--muted); font-size: .86rem; }
.day-done { margin-top: 20px; padding: 14px; border-radius: 14px; color: var(--primary-dark); background: var(--primary-soft); font-size: .88rem; font-weight: 700; text-align: center; }

.section { padding: 90px 0; }
.section.surface { background: var(--surface); }
.section-head { max-width: 700px; margin-bottom: 44px; }
.section h2 { margin-bottom: 16px; font-size: clamp(2rem, 4vw, 3.2rem); }
.section-head p { margin: 0; color: var(--muted); font-size: 1.08rem; }
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.card { padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); }
.card h3 { margin-bottom: 10px; font-size: 1.25rem; }
.card p { margin: 0; color: var(--muted); }

.privacy-band {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 60px;
  align-items: start;
  padding: 54px;
  border-radius: var(--radius-lg);
  color: #fff;
  background: var(--primary-dark);
  box-shadow: var(--shadow);
}
.privacy-band h2 { margin-bottom: 15px; }
.privacy-band p { margin: 0; color: #cfe2dc; }
.check-list { margin: 0; padding: 0; list-style: none; display: grid; gap: 18px; }
.check-list li { position: relative; padding-left: 34px; }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: #a6f2e2; font-weight: 900; }

.site-footer { padding: 38px 0; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: 30px; align-items: end; }
.company { color: var(--muted); font-size: .86rem; }
.company strong { display: block; margin-bottom: 5px; color: var(--ink); }
.footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 18px; font-size: .86rem; }

.legal-hero { padding: 74px 0 44px; border-bottom: 1px solid var(--line); }
.legal-hero h1 { max-width: 850px; margin-bottom: 18px; font-size: clamp(2.7rem, 6vw, 4.8rem); }
.legal-meta { color: var(--muted); }
.legal-layout { display: grid; grid-template-columns: 220px minmax(0, 760px); gap: 64px; align-items: start; padding: 64px 0 96px; }
.toc { position: sticky; top: 102px; padding: 18px 0; border-top: 2px solid var(--primary); }
.toc strong { display: block; margin-bottom: 12px; }
.toc a { display: block; padding: 5px 0; color: var(--muted); font-size: .86rem; text-decoration: none; }
.legal-content h2 { margin: 48px 0 16px; font-size: 1.65rem; scroll-margin-top: 96px; }
.legal-content h2:first-child { margin-top: 0; }
.legal-content h3 { margin: 30px 0 10px; font-size: 1.1rem; }
.legal-content p, .legal-content li { color: #34413d; }
.legal-content ul, .legal-content ol { padding-left: 22px; }
.legal-content li + li { margin-top: 7px; }
.notice { margin: 26px 0; padding: 20px 22px; border-left: 4px solid var(--accent); border-radius: 0 12px 12px 0; background: #fff4ee; }
.notice p { margin: 0; }
.address { font-style: normal; }

@media (max-width: 860px) {
  .nav-links a:not(.lang-link) { display: none; }
  .hero { padding-top: 60px; }
  .hero-grid, .privacy-band { grid-template-columns: 1fr; }
  .hero-grid { gap: 52px; }
  .phone { margin: 0 auto; transform: none; }
  .cards { grid-template-columns: 1fr 1fr; }
  .privacy-band { gap: 36px; padding: 40px; }
  .legal-layout { grid-template-columns: 1fr; gap: 20px; }
  .toc { position: static; display: none; }
}

@media (max-width: 580px) {
  .nav, .container { width: min(calc(100% - 28px), var(--content)); }
  .nav { min-height: 64px; }
  .brand img { width: 34px; height: 34px; }
  .hero { padding: 54px 0 58px; }
  h1 { font-size: 3rem; }
  .phone-screen { min-height: 490px; }
  .section { padding: 64px 0; }
  .cards { grid-template-columns: 1fr; }
  .privacy-band { padding: 30px 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; }
  .legal-hero { padding: 52px 0 34px; }
  .legal-hero h1 { font-size: 2rem; overflow-wrap: anywhere; }
  .legal-layout { padding: 42px 0 70px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}