/* Kometa schedule — black + red, в духе iffun.ru × kometa.fit */
:root {
  --bg: oklch(0% 0 0);
  --bg-2: oklch(8% 0.005 25);
  --surface: oklch(13% 0.01 25);
  --surface-2: oklch(18% 0.012 25);
  --border: oklch(25% 0.015 25 / 0.6);
  --ink: oklch(98% 0.005 280);
  --ink-2: oklch(72% 0.01 280 / 0.7);
  --ink-3: oklch(55% 0.01 280 / 0.5);
  --accent: oklch(63% 0.24 25);          /* красный, как kometa.fit */
  --accent-hi: oklch(72% 0.22 25);
  --accent-fade: oklch(63% 0.24 25 / 0.18);
  --danger: oklch(60% 0.22 30);
  --ok: oklch(70% 0.18 145);

  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 12px 40px oklch(0% 0 0 / 0.6), 0 1px 0 oklch(100% 0 0 / 0.05) inset;
}

* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  background: radial-gradient(1200px 800px at 50% -300px,
              oklch(20% 0.06 25 / 0.35), transparent 70%) , var(--bg);
  color: var(--ink);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Display", system-ui, sans-serif;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  line-height: 1.5;
}

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

code, pre, .mono {
  font-family: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-feature-settings: "ss01";
}

/* layout */
.shell {
  max-width: 880px;
  margin: 0 auto;
  padding: 28px 22px 80px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 0 28px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 28px;
}
.brand {
  display: flex; align-items: baseline; gap: 10px;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 18px;
}
.brand .dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  display: inline-block;
}
.brand small {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.nav { display: flex; gap: 18px; align-items: center; font-size: 14px; }
.nav a { color: var(--ink-2); }
.nav a.is-active { color: var(--ink); }
.nav .who { color: var(--ink-3); font-size: 12px; }

/* hero */
.hero h1 {
  font-weight: 200;
  letter-spacing: -0.04em;
  font-size: clamp(40px, 8vw, 72px);
  line-height: 0.95;
  margin: 8px 0 8px;
}
.hero h1 b {
  font-weight: 700;
  color: var(--accent);
}
.hero .lead {
  color: var(--ink-2);
  max-width: 56ch;
  margin-bottom: 28px;
}

/* card */
.card {
  background: linear-gradient(180deg, var(--surface), var(--bg-2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 22px;
  box-shadow: var(--shadow);
}
.card + .card { margin-top: 18px; }
.card h2 {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink-3);
  margin-bottom: 14px;
  font-weight: 600;
}
.card h2 .badge {
  background: var(--accent-fade);
  color: var(--accent-hi);
  border: 1px solid var(--accent-fade);
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 11px;
  letter-spacing: 0.06em;
  margin-left: 8px;
}

/* form */
form .field { margin-bottom: 14px; }
form label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 6px;
}
input[type="email"], input[type="password"], input[type="text"],
input[type="time"], select, textarea {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--border);
  color: var(--ink);
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font: inherit;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-fade);
}

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--accent);
  background: var(--accent);
  color: oklch(98% 0 0);
  font: inherit;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: filter .15s, transform .05s;
  text-decoration: none;
}
.btn:hover { filter: brightness(1.07); }
.btn:active { transform: translateY(1px); }
.btn.ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--border);
}
.btn.ghost:hover { border-color: var(--accent); color: var(--ink); }
.btn.danger { background: var(--danger); border-color: var(--danger); }
.btn.sm { padding: 8px 14px; font-size: 13px; }

/* inline row */
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.row .grow { flex: 1; }

/* alerts */
.alert {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-2);
  margin-bottom: 18px;
  font-size: 14px;
}
.alert.error { border-color: var(--danger); color: oklch(85% 0.1 30); }
.alert.ok    { border-color: var(--ok); color: oklch(85% 0.12 145); }

/* category checklist */
.cats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 8px;
}
.cat {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-2);
  cursor: pointer;
  transition: border-color .15s, background .15s;
  user-select: none;
}
.cat:hover { border-color: var(--accent); }
.cat input { accent-color: var(--accent); width: 18px; height: 18px; }
.cat.checked { border-color: var(--accent); background: var(--accent-fade); }
.cat .meta { color: var(--ink-3); font-size: 11px; margin-left: auto; font-family: "JetBrains Mono", monospace; }

/* preview */
.lessons {
  display: grid;
  gap: 6px;
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
}
.lessons .grp { color: var(--accent-hi); margin-top: 8px; font-weight: 700; }
.lessons .l { color: var(--ink-2); }
.lessons .l b { color: var(--ink); font-weight: 500; }
.lessons .l i { color: var(--ink-3); font-style: normal; }
.lessons .l .num {
  display: inline-block;
  color: var(--accent-hi);
  font-family: -apple-system, "Segoe UI Emoji", "Apple Color Emoji", sans-serif;
  font-size: 14px;
  margin-right: 4px;
  min-width: 18px;
  text-align: center;
}

/* footer */
footer {
  margin-top: 40px;
  text-align: center;
  color: var(--ink-3);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-family: "JetBrains Mono", monospace;
}

/* small utility */
.muted { color: var(--ink-3); }
.right { text-align: right; }
.spacer { height: 12px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 600px) { .two-col { grid-template-columns: 1fr; } }
.kbd {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  background: var(--surface-2);
  padding: 2px 6px;
  border-radius: 6px;
  border: 1px solid var(--border);
  color: var(--ink-2);
}
table.t { width: 100%; border-collapse: collapse; font-size: 14px; }
table.t th, table.t td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); }
table.t th { font-size: 11px; text-transform: uppercase; letter-spacing: 0.14em; color: var(--ink-3); }