:root {
  --bg: #101012;
  --panel: #17171a;
  --panel-2: #1f1f23;
  --line: #2a2a2f;
  --text: #f2f2f3;
  --muted: #8b8b93;
  --accent: #c4b000;
  --ok: #34c759;
  --warn: #ff9f0a;
  --bad: #ff453a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.55 -apple-system, "Segoe UI", Roboto, sans-serif;
}

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

header.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
header.top .brand { font-weight: 700; letter-spacing: .04em; }
header.top .who { color: var(--muted); font-size: 14px; }

main { max-width: 980px; margin: 0 auto; padding: 24px; }
main.wide { max-width: 1280px; }

h1 { font-size: 22px; margin: 0 0 18px; }
h2 { font-size: 17px; margin: 28px 0 12px; }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 18px;
  margin-bottom: 12px;
}
.card .title { font-weight: 600; margin-bottom: 6px; }
.muted { color: var(--muted); font-size: 13px; }

.bar { height: 6px; background: var(--panel-2); border-radius: 3px; overflow: hidden; }
.bar > span { display: block; height: 100%; background: var(--accent); }

.btn {
  display: inline-block;
  padding: 9px 16px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  font: inherit;
  cursor: pointer;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: #101012; font-weight: 600; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

input[type=text], input[type=password], input[type=tel], textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  font: inherit;
}
label { display: block; margin: 12px 0 4px; font-size: 13px; color: var(--muted); }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 500; font-size: 13px; }

.pill { display: inline-block; padding: 2px 9px; border-radius: 20px; font-size: 12px; }
.pill.ok { background: rgba(52,199,89,.15); color: var(--ok); }
.pill.bad { background: rgba(255,69,58,.15); color: var(--bad); }
.pill.warn { background: rgba(255,159,10,.15); color: var(--warn); }

.error { background: rgba(255,69,58,.12); border: 1px solid var(--bad); color: #ffb4ae;
         padding: 10px 12px; border-radius: 8px; margin-bottom: 12px; }

.question { border-bottom: 1px solid var(--line); padding: 18px 0; }
.question .stem { font-weight: 600; margin-bottom: 10px; white-space: pre-wrap; }
.question label.opt {
  display: flex; gap: 10px; align-items: flex-start;
  margin: 0; padding: 8px 10px; border-radius: 8px; color: var(--text); font-size: 14px;
}
.question label.opt:hover { background: var(--panel-2); }

.timer {
  position: sticky; top: 0; z-index: 5;
  background: var(--panel); border-bottom: 1px solid var(--line);
  padding: 10px 16px; margin: -24px -24px 16px;
  display: flex; justify-content: space-between; align-items: center;
}
.timer .clock { font-variant-numeric: tabular-nums; font-weight: 700; }
.timer .clock.low { color: var(--bad); }

.prose { line-height: 1.7; }
.prose img { max-width: 100%; }

.pair { display: flex; gap: 12px; align-items: center; margin: 8px 0; }
.pair-left { flex: 1; }
.question select {
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  font: inherit;
  min-width: 220px;
}
.question select.narrow { min-width: 70px; }
.fill { line-height: 2.4; }
.fill select { min-width: 130px; margin: 0 4px; }

/* тренажёр CLS */
.sim-layout { display: grid; grid-template-columns: 1fr 340px; gap: 18px; align-items: start; }
.sim-console { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.sim-nav { display: flex; flex-wrap: wrap; gap: 2px; background: var(--panel-2); padding: 6px; }
.sim-tab {
  background: transparent; border: 0; color: var(--muted);
  padding: 8px 12px; border-radius: 6px; font: inherit; cursor: pointer;
}
.sim-tab:hover { color: var(--text); }
.sim-tab.active { background: var(--panel); color: var(--accent); font-weight: 600; }
.sim-view { padding: 16px; }

.sim-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.pc { border: 1px solid var(--line); border-radius: 8px; padding: 8px; background: var(--panel-2); }
.pc-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 6px; }
.pc-name { font-weight: 700; }
.pc-state { font-size: 11px; color: var(--muted); }
.pc.busy { border-color: #4a3a00; }
.pc.busy .pc-state { color: var(--warn); }
.pc.free .pc-state { color: var(--ok); }
.pc.blocked { opacity: .6; }
.pc-actions { display: flex; flex-wrap: wrap; gap: 4px; }
.pc-actions button {
  flex: 1 1 auto; background: var(--panel); color: var(--text);
  border: 1px solid var(--line); border-radius: 6px;
  padding: 5px 7px; font-size: 12px; cursor: pointer;
}
.pc-actions button:hover { border-color: var(--accent); color: var(--accent); }
.pc-actions button.forbidden { border-style: dashed; color: var(--muted); }

.sim-card { margin-top: 16px; border: 1px solid var(--line); border-radius: 8px;
            padding: 14px; background: var(--panel-2); }
.sim-meter { display: flex; gap: 16px; margin-top: 12px; font-size: 13px; color: var(--muted); }
.sim-hint {
  margin-top: 12px; padding: 10px 12px; border-radius: 8px;
  background: rgba(196,176,0,.12); border: 1px solid var(--accent); font-size: 13px;
}

.sim-modal {
  position: fixed; inset: 0; background: rgba(0,0,0,.6);
  display: flex; align-items: center; justify-content: center; z-index: 50;
}
/* display:flex перебивает атрибут hidden — возвращаем его в силу */
.sim-modal[hidden], .sim-view[hidden], .card[hidden], .sim-card[hidden] { display: none; }
.sim-modal-box {
  background: var(--panel); border: 1px solid var(--line); border-radius: 10px;
  padding: 20px; width: min(420px, 92vw);
}
.sim-modal-box select, .sim-modal-box input, .sim-modal-box textarea { width: 100%; }

body.shake .sim-console { animation: shake .18s; }
@keyframes shake { 25% { transform: translateX(-4px);} 75% { transform: translateX(4px);} }

@media (max-width: 900px) { .sim-layout { grid-template-columns: 1fr; } }

.draft-note {
  margin: -4px 0 14px; padding: 9px 12px; border-radius: 8px;
  background: rgba(255,159,10,.12); border: 1px solid var(--warn);
  color: var(--warn); font-size: 13px;
}