:root {
  --bg: #f6f7fb; --surface: #ffffff; --surface-2: #eef0f6; --border: #e1e4ee;
  --text: #151826; --muted: #616782; --accent: #4f6bff; --accent-text: #fff;
  --ok: #17a36b; --danger: #e04848; --shadow: 0 1px 2px rgba(20,24,40,.06), 0 8px 24px rgba(20,24,40,.06);
  --radius: 16px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1018; --surface: #161925; --surface-2: #1e2232; --border: #262b3d;
    --text: #eef0f8; --muted: #9298b3; --accent: #6d84ff; --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.25);
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg); color: var(--text);
  font: 15px/1.55 "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }

/* ---------- header ---------- */
.top {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(12px); border-bottom: 1px solid var(--border);
}
.top-in { max-width: 1180px; margin: 0 auto; padding: 12px 20px; display: flex; gap: 16px; align-items: center; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand svg { width: 30px; height: 30px; }
.nav { display: flex; gap: 4px; }
.nav a { padding: 7px 12px; border-radius: 10px; color: var(--muted); font-weight: 500; }
.nav a.on, .nav a:hover { background: var(--surface-2); color: var(--text); text-decoration: none; }
.search { margin-left: auto; position: relative; flex: 0 1 300px; }
.search input {
  width: 100%; padding: 9px 12px 9px 36px; border-radius: 12px;
  border: 1px solid var(--border); background: var(--surface); outline: none;
}
.search input:focus { border-color: var(--accent); }
.search svg { position: absolute; left: 11px; top: 50%; transform: translateY(-50%); width: 16px; color: var(--muted); }

main { max-width: 1180px; margin: 0 auto; padding: 24px 20px 64px; }

/* ---------- hero ---------- */
.hero {
  border-radius: 24px; padding: 40px 36px; margin-bottom: 32px;
  background: radial-gradient(120% 140% at 0% 0%, color-mix(in srgb, var(--accent) 28%, var(--surface)) 0%, var(--surface) 60%);
  border: 1px solid var(--border); box-shadow: var(--shadow);
}
.hero h1 { margin: 0 0 8px; font-size: clamp(28px, 4vw, 42px); letter-spacing: -0.02em; }
.hero p { margin: 0 0 20px; color: var(--muted); font-size: 17px; max-width: 560px; }
.section-h { display: flex; align-items: baseline; justify-content: space-between; margin: 28px 0 14px; }
.section-h h2 { margin: 0; font-size: 20px; }

/* ---------- buttons / chips ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; border-radius: 12px;
  border: 1px solid var(--border); background: var(--surface); cursor: pointer; font-weight: 600; color: var(--text);
}
.btn:hover { text-decoration: none; border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--danger); }
.btn.small { padding: 6px 10px; font-size: 13px; border-radius: 9px; }
.btn:disabled { opacity: .5; cursor: default; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.chip {
  padding: 7px 13px; border-radius: 999px; border: 1px solid var(--border); background: var(--surface);
  cursor: pointer; font-weight: 500; color: var(--muted); display: inline-flex; gap: 6px; align-items: center;
}
.chip.on { background: var(--text); color: var(--bg); border-color: var(--text); }
.chip svg { width: 15px; height: 15px; }

/* ---------- grid / cards ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 16px; }
.card {
  display: flex; flex-direction: column; gap: 12px; padding: 18px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border); color: var(--text); box-shadow: var(--shadow);
  transition: transform .15s, border-color .15s;
}
.card:hover { transform: translateY(-2px); border-color: var(--accent); text-decoration: none; }
.card-top { display: flex; gap: 14px; align-items: center; }
.icon {
  width: 56px; height: 56px; border-radius: 14px; flex: none; object-fit: cover;
  background: var(--accent); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 22px;
}
.icon.lg { width: 104px; height: 104px; border-radius: 24px; font-size: 42px; }
.card h3 { margin: 0; font-size: 16px; }
.card .sub { color: var(--muted); font-size: 13px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.plats { display: flex; gap: 6px; margin-top: auto; color: var(--muted); }
.plats svg { width: 17px; height: 17px; }
.empty { padding: 48px; text-align: center; color: var(--muted); border: 1px dashed var(--border); border-radius: var(--radius); }

/* ---------- app page ---------- */
.back { display: inline-flex; gap: 6px; align-items: center; color: var(--muted); margin-bottom: 16px; }
.app-head { display: flex; gap: 24px; align-items: center; margin-bottom: 28px; flex-wrap: wrap; }
.app-head h1 { margin: 0 0 4px; font-size: clamp(26px, 3.5vw, 36px); letter-spacing: -0.02em; }
.app-head .tag { color: var(--muted); font-size: 17px; margin: 0 0 10px; }
.meta { display: flex; gap: 14px; flex-wrap: wrap; color: var(--muted); font-size: 13px; }
.meta span { display: inline-flex; gap: 5px; align-items: center; }
.layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 28px; align-items: start; }
@media (max-width: 900px) { .layout { grid-template-columns: 1fr; } .dl-panel { order: -1; } }
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.panel + .panel { margin-top: 20px; }
.panel h2 { margin: 0 0 12px; font-size: 18px; }
.dl-panel { position: sticky; top: 80px; }
.dl {
  display: flex; align-items: center; gap: 12px; padding: 12px; border-radius: 12px;
  border: 1px solid var(--border); margin-top: 10px; color: var(--text);
}
.dl:hover { border-color: var(--accent); text-decoration: none; background: var(--surface-2); }
.dl.mine { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, var(--surface)); }
.dl .pi { width: 36px; height: 36px; border-radius: 10px; background: var(--surface-2); display: grid; place-items: center; flex: none; }
.dl .pi svg { width: 20px; height: 20px; }
.dl b { display: block; font-size: 14px; }
.dl small { color: var(--muted); font-size: 12px; }
.dl .go { margin-left: auto; color: var(--accent); }
.dl .go svg { width: 20px; }
.for-you { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--accent); margin-left: 6px; }
.prose { overflow-wrap: anywhere; }
.prose > :first-child { margin-top: 0; } .prose > :last-child { margin-bottom: 0; }
.prose h3, .prose h4 { margin: 18px 0 6px; }
.prose code { background: var(--surface-2); padding: 1px 6px; border-radius: 6px; font-size: 13px; }
.prose li { margin: 3px 0; }
.prose ol { counter-reset: s; padding-left: 0; list-style: none; }
.prose ol > li { counter-increment: s; position: relative; padding-left: 36px; margin: 10px 0; }
.prose ol > li::before {
  content: counter(s); position: absolute; left: 0; top: 0; width: 24px; height: 24px; border-radius: 50%;
  background: var(--accent); color: #fff; font-size: 12px; font-weight: 700; display: grid; place-items: center;
}
.gallery { display: flex; gap: 12px; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 6px; }
.gallery > * {
  flex: none; height: 260px; max-width: 90%; border-radius: 12px; scroll-snap-align: start;
  border: 1px solid var(--border); background: var(--surface-2); cursor: zoom-in; object-fit: cover;
}
.gallery iframe { width: 462px; aspect-ratio: 16/9; height: 260px; cursor: default; }
.gallery video { cursor: default; }
@media (max-width: 600px) { .gallery > * { height: 190px; } .gallery iframe { width: 338px; height: 190px; } }
.lightbox { position: fixed; inset: 0; background: rgba(0,0,0,.85); display: grid; place-items: center; z-index: 50; padding: 20px; cursor: zoom-out; }
.lightbox img { max-height: 92vh; border-radius: 10px; }

footer { text-align: center; color: var(--muted); font-size: 13px; padding: 30px 20px; border-top: 1px solid var(--border); }

@media (max-width: 700px) {
  .top-in { flex-wrap: wrap; padding: 10px 16px; }
  .search { flex: 1 1 100%; order: 3; }
  main { padding: 16px 16px 48px; }
  .hero { padding: 28px 22px; }
}