:root {
  --bg: #f7f8fb;
  --bg-elevated: #ffffff;
  --text: #111420;
  --text-dim: #5b6072;
  --border: #e4e6ee;
  --accent: #2f7cf6;
  --accent-2: #6a5cff;
  --accent-contrast: #ffffff;
  --danger: #e5484d;
  --radius: 16px;
  --shadow: 0 8px 30px rgba(20, 24, 40, 0.08);
  --maxw: 1080px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b0f19;
    --bg-elevated: #131829;
    --text: #eef1f7;
    --text-dim: #9aa3b8;
    --border: #232a41;
    --shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0b0f19;
  --bg-elevated: #131829;
  --text: #eef1f7;
  --text-dim: #9aa3b8;
  --border: #232a41;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ── Header ─────────────────────────────────────────────────────────── */
header.site {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
header.site .bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px; max-width: var(--maxw); margin: 0 auto;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; color: var(--text); flex-shrink: 0; }
.brand img { width: 32px; height: 32px; border-radius: 9px; }
.site-menu { display: flex; align-items: center; gap: 22px; }
nav.main { display: flex; gap: 26px; align-items: center; }
nav.main a { color: var(--text-dim); font-weight: 600; font-size: 14.5px; white-space: nowrap; }
nav.main a:hover { color: var(--text); text-decoration: none; }

/* Hamburger — hidden on desktop */
.menu-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 4px;
  width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--bg-elevated); cursor: pointer; padding: 0; flex-shrink: 0;
}
.menu-toggle span { display: block; width: 18px; height: 2px; margin: 0 auto; background: var(--text); border-radius: 2px; transition: transform .2s, opacity .2s; }
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px; border-radius: 999px; font-weight: 700; font-size: 14.5px;
  border: 1px solid transparent; cursor: pointer;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); }

/* ── Hero ───────────────────────────────────────────────────────────── */
.hero { padding: 96px 24px 64px; text-align: center; }
.hero h1 {
  font-size: clamp(34px, 5vw, 56px); font-weight: 800; letter-spacing: -0.02em;
  margin: 0 0 18px; line-height: 1.1;
}
.hero .accent-word { background: linear-gradient(135deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { font-size: 19px; color: var(--text-dim); max-width: 620px; margin: 0 auto 34px; }
.hero .cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero .cta-row .btn { padding: 13px 26px; font-size: 15.5px; }

.badge {
  display: inline-block; padding: 5px 14px; border-radius: 999px;
  background: var(--bg-elevated); border: 1px solid var(--border);
  font-size: 12.5px; font-weight: 700; color: var(--text-dim); letter-spacing: .02em;
  margin-bottom: 20px;
}

/* ── Sections / Cards ──────────────────────────────────────────────── */
section { padding: 56px 24px; }
h2.section-title { font-size: 30px; font-weight: 800; text-align: center; margin: 0 0 44px; letter-spacing: -0.01em; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; max-width: var(--maxw); margin: 0 auto; }
.card {
  background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; box-shadow: var(--shadow);
}
.card .icon { font-size: 28px; margin-bottom: 14px; }
.card h3 { margin: 0 0 8px; font-size: 17px; }
.card p { margin: 0; color: var(--text-dim); font-size: 14.5px; }

/* ── Download cards ────────────────────────────────────────────────── */
.download-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; max-width: var(--maxw); margin: 40px auto 0; }
.download-card {
  background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; text-align: center; box-shadow: var(--shadow);
  display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.download-card .platform-icon { font-size: 40px; }
.download-card h3 { margin: 4px 0 0; }
.download-card .ver { color: var(--text-dim); font-size: 13px; }
.download-card .btn { width: 100%; justify-content: center; margin-top: 10px; }

/* ── Legal / content pages ─────────────────────────────────────────── */
.content-page { max-width: 760px; margin: 0 auto; padding: 64px 24px 100px; }
.content-page h1 { font-size: 34px; margin-bottom: 6px; }
.content-page .updated { color: var(--text-dim); font-size: 13.5px; margin-bottom: 40px; }
.content-page h2 { font-size: 20px; margin-top: 40px; }
.content-page p, .content-page li { color: var(--text-dim); font-size: 15.5px; }
.notice {
  border: 1px solid color-mix(in srgb, var(--danger) 40%, var(--border));
  background: color-mix(in srgb, var(--danger) 8%, var(--bg-elevated));
  border-radius: 12px; padding: 16px 20px; font-size: 14.5px; margin-bottom: 30px;
}
.notice strong { color: var(--danger); }

/* ── Footer ─────────────────────────────────────────────────────────── */
footer.site { border-top: 1px solid var(--border); padding: 46px 24px; margin-top: 40px; }
footer.site .wrap { display: flex; flex-wrap: wrap; gap: 40px; justify-content: space-between; }
footer.site .col h4 { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--text-dim); margin: 0 0 12px; }
footer.site .col a { display: block; color: var(--text-dim); font-size: 14.5px; margin-bottom: 9px; }
footer.site .col a:hover { color: var(--text); text-decoration: none; }
footer.site .bottom { max-width: var(--maxw); margin: 30px auto 0; padding-top: 20px; border-top: 1px solid var(--border); color: var(--text-dim); font-size: 13px; text-align: center; }

.status-ok { color: #2fbf71; font-weight: 700; }
.status-bad { color: var(--danger); font-weight: 700; }
.status-row { display: flex; align-items: center; justify-content: space-between; padding: 14px 20px; background: var(--bg-elevated); border: 1px solid var(--border); border-radius: 12px; margin-bottom: 12px; }

/* ── Language switcher ─────────────────────────────────────────────── */
.lang-switch { display: flex; align-items: center; gap: 2px; background: var(--bg-elevated); border: 1px solid var(--border); border-radius: 999px; padding: 3px; }
.lang-item { padding: 6px 12px; border-radius: 999px; font-size: 12.5px; font-weight: 700; color: var(--text-dim); letter-spacing: .03em; }
.lang-item:hover { color: var(--text); text-decoration: none; }
.lang-item.active { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; }

/* ── Inline code / tables inside content pages ────────────────────────── */
.content-page code { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: 6px; padding: 2px 6px; font-size: 0.9em; font-family: 'SF Mono', Consolas, monospace; color: var(--accent); }
.content-page table { font-size: 14.5px; }
.content-page table td { padding: 10px 14px; border-bottom: 1px solid var(--border); color: var(--text-dim); }
.content-page table td:first-child { white-space: nowrap; }
.content-page ol, .content-page ul { padding-left: 22px; }
.content-page ol li, .content-page ul li { margin-bottom: 6px; }

@media (max-width: 900px) {
  .menu-toggle { display: flex; }

  .site-menu {
    display: none;
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 4px;
    background: var(--bg-elevated); border-bottom: 1px solid var(--border);
    padding: 10px 24px 20px; box-shadow: var(--shadow);
  }
  header.site .bar.menu-open .site-menu { display: flex; }
  header.site .bar { position: relative; flex-wrap: nowrap; }

  nav.main { flex-direction: column; align-items: flex-start; gap: 2px; }
  nav.main a { padding: 10px 4px; width: 100%; }

  .lang-switch { align-self: flex-start; margin: 8px 0; }

  .site-menu .btn { width: 100%; justify-content: center; margin-top: 4px; }
}