/* Taiga VPN website. One stylesheet, no external requests. Colours follow docs/DESIGN.md §2. */

:root {
  color-scheme: light dark;
  --accent: #1f6b3a;
  --accent-text: #1f6b3a;
  --on-accent: #ffffff;
  --bg: #f2f2f7;
  --card: #ffffff;
  --text: #1c1c1e;
  --muted: #545458;
  --line: rgba(60, 60, 67, 0.18);
  --radius: 20px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-title: ui-rounded, "SF Pro Rounded", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent: #4caf6e;
    --accent-text: #6cc78b;
    --on-accent: #0b2214;
    --bg: #000000;
    --card: #1c1c1e;
    --text: #f2f2f7;
    --muted: #aeaeb2;
    --line: rgba(255, 255, 255, 0.14);
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.55 var(--font);
  overflow-wrap: break-word;
}

/* Language switch: Russian by default, English when the address ends with #en. */
.lang-en {
  display: none;
}

.lang-en:target {
  display: block;
}

body:has(.lang-en:target) .lang-ru {
  display: none;
}

.page {
  max-width: 760px;
  margin: 0 auto;
  padding: 12px max(16px, env(safe-area-inset-right)) 40px max(16px, env(safe-area-inset-left));
}

/* Top bar */
.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0 12px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font: 600 19px/1.2 var(--font-title);
  text-decoration: none;
}

.brand img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.switch {
  display: inline-flex;
  padding: 3px;
  border-radius: 999px;
  background: var(--card);
  border: 1px solid var(--line);
}

.switch a {
  min-width: 44px;
  padding: 6px 12px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
}

.switch a[aria-current] {
  background: var(--accent);
  color: var(--on-accent);
}

/* Page navigation */
.pages {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.pages li {
  margin: 0;
}

.pages a {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--card);
  border: 1px solid var(--line);
  color: var(--text);
  font-size: 15px;
  line-height: 1.3;
  text-decoration: none;
}

.pages a[aria-current="page"] {
  border-color: var(--accent);
  color: var(--accent-text);
  font-weight: 600;
}

/* Text */
h1,
h2,
h3 {
  font-family: var(--font-title);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h1 {
  margin: 8px 0 6px;
  font-size: clamp(28px, 7vw, 36px);
}

h2 {
  margin: 0 0 10px;
  font-size: 21px;
}

h3 {
  margin: 18px 0 6px;
  font-size: 17px;
}

p,
ul,
ol {
  margin: 0 0 12px;
}

ul,
ol {
  padding-left: 1.3em;
}

li + li {
  margin-top: 6px;
}

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

code {
  font: 0.88em/1.4 ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  overflow-wrap: anywhere;
}

.meta {
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 15px;
}

.lead {
  font-size: 19px;
}

.muted {
  color: var(--muted);
}

/* Cards */
.card {
  margin: 0 0 16px;
  padding: 20px;
  border-radius: var(--radius);
  background: var(--card);
}

@media (prefers-color-scheme: dark) {
  .card {
    border: 1px solid var(--line);
  }
}

.card > :last-child {
  margin-bottom: 0;
}

/* Home page hero */
.hero {
  padding: 24px 0 20px;
  text-align: center;
}

.hero img {
  display: block;
  width: 128px;
  height: 128px;
  margin: 0 auto 16px;
}

.hero h1 {
  margin: 0 0 4px;
}

.hero .subtitle {
  margin: 0 0 16px;
  color: var(--muted);
  font: 600 19px/1.3 var(--font-title);
}

.hero .lead {
  max-width: 600px;
  margin: 0 auto 12px;
  text-align: left;
}

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

/* Contact button */
.button {
  display: inline-block;
  min-height: 48px;
  padding: 12px 22px;
  border-radius: 14px;
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
  line-height: 1.5;
  text-decoration: none;
}

.steps li::marker {
  color: var(--accent-text);
  font-weight: 700;
}

footer {
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 15px;
}

footer p {
  margin: 0 0 6px;
}

footer a {
  color: inherit;
}