:root {
  --bg: #ffffff;
  --panel: #f5f7f8;
  --text: #15181d;
  --muted: #59606c;
  --border: #e1e5ea;
  --accent: #0f766e;
  --accent-text: #ffffff;
  --hero-from: #0f766e;
  --hero-to: #134e4a;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121418;
    --panel: #1b1e24;
    --text: #e8eaee;
    --muted: #9aa2b1;
    --border: #2c313b;
    --accent: #2dd4bf;
    --accent-text: #062a26;
    --hero-from: #0d4f49;
    --hero-to: #0b2f2c;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}

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

img {
  max-width: 100%;
  height: auto;
}

.wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 16px;
}

.narrow {
  max-width: 720px;
}

.site-header {
  border-bottom: 1px solid var(--border);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 56px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

.site-header nav {
  display: flex;
  gap: 18px;
  font-size: 15px;
}

.hero {
  background: linear-gradient(135deg, var(--hero-from), var(--hero-to));
  color: #fff;
  padding: 56px 0 64px;
}

.hero .wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: center;
}

@media (min-width: 860px) {
  .hero .wrap {
    grid-template-columns: 5fr 7fr;
  }
}

.hero h1 {
  font-size: clamp(32px, 5vw, 46px);
  line-height: 1.1;
  margin: 12px 0 14px;
  letter-spacing: -0.02em;
}

.hero p {
  color: #ccfbf1;
  margin: 0 0 24px;
  font-size: 19px;
}

.hero .shot {
  border-radius: 12px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  display: block;
}

.button {
  display: inline-block;
  padding: 12px 20px;
  border-radius: 10px;
  background: #fff;
  color: #0f3f3a;
  font-weight: 700;
  text-decoration: none;
}

.button.disabled {
  opacity: 0.85;
  cursor: default;
}

.hero .note {
  font-size: 14px;
  color: #99f6e4;
  margin-top: 10px;
}

section {
  padding: 48px 0;
}

section + section {
  border-top: 1px solid var(--border);
}

h2 {
  font-size: 28px;
  line-height: 1.2;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 19px;
  margin: 0 0 6px;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 20px;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

.plans {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.plans ul {
  margin: 10px 0 0;
  padding-left: 20px;
}

.price {
  font-size: 28px;
  font-weight: 800;
}

.gallery {
  display: grid;
  gap: 20px;
}

.gallery img {
  border-radius: 10px;
  border: 1px solid var(--border);
}

.doc h1 {
  font-size: clamp(28px, 4vw, 38px);
  line-height: 1.15;
  margin: 40px 0 6px;
}

.doc h2 {
  font-size: 22px;
  margin: 36px 0 10px;
}

.doc .meta {
  color: var(--muted);
  margin: 0 0 24px;
}

.doc table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

.doc th,
.doc td {
  text-align: left;
  vertical-align: top;
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
}

.table-scroll {
  overflow-x: auto;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: 14px;
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}

.list a {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--text);
}

.list strong {
  display: block;
}

.list span {
  color: var(--muted);
  font-size: 15px;
}

.logo .by {
  font-weight: 500;
  font-size: 14px;
  color: var(--muted);
}

.logo picture,
.logo img,
.publisher picture,
.publisher img {
  display: block;
}

.site-footer .wrap {
  align-items: center;
}

.publisher {
  padding: 8px 8px 8px 0;
}