:root {
  color-scheme: dark;
  --bg: #07120f;
  --panel: rgba(20, 43, 36, 0.76);
  --panel-strong: #122b24;
  --text: #f5f7f5;
  --muted: #b4c6be;
  --line: rgba(255, 255, 255, 0.11);
  --green: #7fe2b3;
  --green-deep: #143d31;
  --amber: #f4c06a;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% -5%, rgba(77, 193, 143, 0.24), transparent 34rem),
    radial-gradient(circle at 90% 12%, rgba(244, 192, 106, 0.12), transparent 30rem),
    var(--bg);
}

a {
  color: var(--green);
}

.site-header,
.site-footer,
.container {
  width: min(1120px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 760;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(127, 226, 179, 0.45);
  border-radius: 14px;
  color: #062017;
  background: linear-gradient(145deg, #b7f4d6, #58c994);
  box-shadow: 0 12px 30px rgba(69, 194, 136, 0.25);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 22px;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--text);
}

.hero {
  display: grid;
  min-height: 66vh;
  align-items: center;
  padding: 76px 0 112px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 850px;
  margin-bottom: 24px;
  font-size: clamp(2.8rem, 8vw, 6.8rem);
  line-height: 0.94;
  letter-spacing: -0.065em;
}

.hero-copy {
  max-width: 720px;
  margin-bottom: 34px;
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.35rem);
  line-height: 1.65;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  font-weight: 750;
  text-decoration: none;
}

.button-primary {
  border-color: transparent;
  color: #062017;
  background: var(--green);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: rgba(127, 226, 179, 0.5);
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding-bottom: 90px;
}

.feature,
.document {
  border: 1px solid var(--line);
  background: linear-gradient(155deg, rgba(29, 61, 51, 0.78), rgba(10, 27, 22, 0.78));
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.feature {
  min-height: 220px;
  padding: 28px;
  border-radius: 28px;
}

.feature-number {
  display: block;
  margin-bottom: 38px;
  color: var(--amber);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.feature h2 {
  font-size: 1.2rem;
}

.feature p,
.document p,
.document li {
  color: var(--muted);
  line-height: 1.7;
}

.document-wrap {
  padding: 58px 0 96px;
}

.document {
  max-width: 900px;
  margin: 0 auto;
  padding: clamp(26px, 6vw, 72px);
  border-radius: 34px;
}

.document h1 {
  max-width: 760px;
  margin-bottom: 18px;
  font-size: clamp(2.3rem, 6vw, 4.7rem);
}

.document h2 {
  margin-top: 46px;
  padding-top: 30px;
  border-top: 1px solid var(--line);
  font-size: clamp(1.35rem, 3vw, 1.75rem);
}

.document h3 {
  margin-top: 28px;
}

.document ul {
  padding-left: 1.25rem;
}

.meta {
  margin-bottom: 42px;
  color: var(--muted);
}

.notice {
  margin: 28px 0;
  padding: 20px 22px;
  border: 1px solid rgba(244, 192, 106, 0.28);
  border-radius: 18px;
  background: rgba(244, 192, 106, 0.08);
}

.contact-card {
  margin-top: 26px;
  padding: 24px;
  border: 1px solid rgba(127, 226, 179, 0.26);
  border-radius: 20px;
  background: rgba(127, 226, 179, 0.07);
}

.contact-card p:last-child,
.notice p:last-child {
  margin-bottom: 0;
}

.language-divider {
  margin: 64px 0 0;
  padding-top: 50px;
  border-top: 2px solid rgba(127, 226, 179, 0.3);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 34px 0 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer div {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

@media (max-width: 760px) {
  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    justify-content: flex-start;
  }

  .hero {
    min-height: auto;
    padding: 66px 0 82px;
  }

  .features {
    grid-template-columns: 1fr;
  }

  .document-wrap {
    padding-top: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}