/* Лендинг e-marketer.me — общий стиль (RU/EN), обезличенная версия.
   Системные шрифты, без внешних зависимостей. Светлая тема + автотёмная. */

:root {
  --bg: #ffffff;
  --bg-soft: #f5f6f8;
  --bg-hero: linear-gradient(160deg, #eef1fb 0%, #f7f8fc 55%, #ffffff 100%);
  --ink: #14161d;
  --ink-soft: #4b515e;
  --ink-muted: #737b8a;
  --line: #e5e7ec;
  --accent: #2743e8;
  --accent-ink: #1b2fb0;
  --card: #ffffff;
  --shadow: 0 1px 2px rgba(20, 22, 29, .04), 0 8px 24px rgba(20, 22, 29, .05);
  --radius: 14px;
  --maxw: 1080px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
          Arial, "Noto Sans", "Liberation Sans", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1116;
    --bg-soft: #151822;
    --bg-hero: linear-gradient(160deg, #171b2b 0%, #12141c 55%, #0f1116 100%);
    --ink: #eef0f5;
    --ink-soft: #b7bdca;
    --ink-muted: #8b93a3;
    --line: #262a36;
    --accent: #7d92ff;
    --accent-ink: #9fb0ff;
    --card: #161a24;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px rgba(0, 0, 0, .35);
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 40px);
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 14px;
}
.brand { font-weight: 700; letter-spacing: -.01em; color: var(--ink); }
.brand:hover { text-decoration: none; }

.lang-switch { display: flex; align-items: center; gap: 2px; font-size: 14px; }
.lang-switch a, .lang-switch span {
  padding: 5px 10px;
  border-radius: 8px;
  color: var(--ink-muted);
}
.lang-switch .is-active {
  color: var(--ink);
  font-weight: 600;
  background: var(--bg-soft);
}
.lang-switch a:hover { color: var(--ink); background: var(--bg-soft); text-decoration: none; }

/* ---------- Hero ---------- */
.hero {
  background: var(--bg-hero);
  border-bottom: 1px solid var(--line);
}
.hero .container { padding-block: clamp(56px, 11vw, 104px); }
.hero h1 {
  margin: 0 0 18px;
  font-size: clamp(2rem, 5.6vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -.025em;
  font-weight: 800;
  max-width: 15ch;
}
.hero .subhead {
  margin: 0 0 32px;
  font-size: clamp(1.05rem, 2.4vw, 1.3rem);
  color: var(--ink-soft);
  max-width: 60ch;
}
.eyebrow {
  display: inline-block;
  margin-bottom: 20px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--accent-ink);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  padding: 13px 24px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 1rem;
  box-shadow: var(--shadow);
  transition: transform .12s ease, filter .12s ease;
}
.btn:hover { text-decoration: none; filter: brightness(1.06); transform: translateY(-1px); }
.btn .arrow { transition: transform .12s ease; }
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- Sections ---------- */
section { padding-block: clamp(48px, 8vw, 80px); }
section + section { border-top: 1px solid var(--line); }
.section-title {
  margin: 0 0 8px;
  font-size: clamp(1.5rem, 3.2vw, 2rem);
  letter-spacing: -.02em;
  font-weight: 750;
}
.section-lead { margin: 0 0 36px; color: var(--ink-muted); max-width: 60ch; }

.about p {
  font-size: clamp(1.05rem, 2vw, 1.22rem);
  color: var(--ink-soft);
  max-width: 66ch;
  margin: 0;
}

/* ---------- Cards (What I do) ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}
.card h3 { margin: 0 0 8px; font-size: 1.08rem; letter-spacing: -.01em; }
.card p { margin: 0; color: var(--ink-soft); font-size: .98rem; }

/* ---------- Contact ---------- */
.contact .links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin-top: 8px;
  font-size: 1.08rem;
}
.contact .links a { font-weight: 600; }
.contact .row { display: flex; align-items: baseline; gap: 10px; }
.contact .label { color: var(--ink-muted); font-size: .95rem; min-width: 88px; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 32px;
  color: var(--ink-muted);
  font-size: .92rem;
}
.site-footer .container { display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; }

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