:root {
  --bg: #f1f5f9;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --line: #cbd5e1;
  --brand: #2563eb;
  --brand-dark: #1d4ed8;
  --tg: #229ed9;
  --err-bg: #fee2e2;
  --err: #991b1b;
  --ok-bg: #dcfce7;
  --ok: #166534;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1220; --card: #111a2e; --text: #e5e7eb; --muted: #94a3b8; --line: #334155;
    --err-bg: #450a0a; --err: #fecaca; --ok-bg: #052e16; --ok: #bbf7d0;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 16px; background: var(--bg); color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
.card {
  width: 100%; max-width: 420px; background: var(--card); border-radius: 16px;
  padding: 28px 24px; box-shadow: 0 10px 30px rgba(15, 23, 42, .12);
}
h1 { margin: 0 0 18px; font-size: 24px; }
.tabs { display: flex; gap: 6px; background: var(--bg); padding: 4px; border-radius: 12px; margin-bottom: 18px; }
.tab {
  flex: 1; border: 0; background: transparent; color: var(--muted); padding: 10px;
  border-radius: 9px; font: inherit; font-weight: 600; cursor: pointer;
}
.tab.active { background: var(--card); color: var(--text); box-shadow: 0 1px 4px rgba(0,0,0,.12); }
label { display: block; margin-bottom: 14px; font-size: 14px; font-weight: 600; color: var(--muted); }
input, select {
  display: block; width: 100%; margin-top: 6px; padding: 12px 14px; font: inherit; color: var(--text);
  background: var(--card); border: 1px solid var(--line); border-radius: 10px; outline: none;
}
input:focus, select:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(37, 99, 235, .2); }
.phone { display: flex; align-items: stretch; margin-top: 6px; }
.phone span {
  display: flex; align-items: center; padding: 0 12px; background: var(--bg); color: var(--text);
  border: 1px solid var(--line); border-right: 0; border-radius: 10px 0 0 10px; font-weight: 600;
}
.phone input { margin: 0; border-radius: 0 10px 10px 0; }
.btn {
  display: block; width: 100%; padding: 13px; margin-top: 6px; text-align: center; text-decoration: none;
  background: var(--brand); color: #fff; border: 0; border-radius: 10px; font: inherit; font-weight: 700; cursor: pointer;
}
.btn:hover { background: var(--brand-dark); }
.btn:disabled { opacity: .6; cursor: wait; }
.btn.tg { background: var(--tg); margin: 10px 0 4px; }
.ghost {
  border: 1px solid var(--line); background: transparent; color: var(--text); padding: 8px 12px;
  border-radius: 8px; font: inherit; cursor: pointer;
}
.link { background: none; border: 0; color: var(--muted); text-decoration: underline; cursor: pointer; margin-top: 14px; font: inherit; }
.msg { padding: 10px 12px; border-radius: 10px; margin-bottom: 14px; font-size: 14px; }
.msg.err { background: var(--err-bg); color: var(--err); }
.msg.ok { background: var(--ok-bg); color: var(--ok); }
.steps { display: flex; gap: 8px; list-style: none; padding: 0; margin: 0 0 18px; counter-reset: s; }
.steps li { flex: 1; text-align: center; font-size: 13px; color: var(--muted); padding-bottom: 6px; border-bottom: 3px solid var(--line); }
.steps li.on { color: var(--brand); border-color: var(--brand); font-weight: 700; }
.hint { color: var(--muted); margin: 10px 0 6px; }
.hint.small { font-size: 13px; margin-top: 0; }
.code-box {
  display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 12px 14px;
  background: var(--bg); border: 1px dashed var(--line); border-radius: 10px; margin-bottom: 8px;
}
.code-box span { font: 700 26px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: 3px; }
.code-input { text-align: center; font: 700 22px ui-monospace, Menlo, monospace; letter-spacing: 3px; text-transform: uppercase; }
.timer { color: var(--muted); font-size: 14px; margin: 8px 0 14px; }
.profile { display: grid; grid-template-columns: auto 1fr; gap: 8px 14px; margin: 18px 0; }
.profile dt { color: var(--muted); }
.profile dd { margin: 0; font-weight: 600; }
[hidden] { display: none !important; }

/* ================= Ilova (kabinet) ================= */
:root { --soft: #eef2ff; --warn: #b45309; --warn-bg: #fef3c7; --good: #166534; --good-bg: #dcfce7; --bad: #991b1b; --bad-bg: #fee2e2; --info-bg: #dbeafe; --info: #1e40af; }
@media (prefers-color-scheme: dark) {
  :root { --soft: #1a2540; --warn: #fcd34d; --warn-bg: #422006; --good: #bbf7d0; --good-bg: #052e16; --bad: #fecaca; --bad-bg: #450a0a; --info-bg: #172554; --info: #bfdbfe; }
}
body.app-body { display: block; padding: 0; }
.wrap { width: 100%; max-width: 960px; margin: 0 auto; padding: 0 16px; }
.topbar { background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
.bar-inner { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; padding-top: 10px; padding-bottom: 10px; }
.brand { font-weight: 800; color: var(--text); text-decoration: none; font-size: 18px; }
.nav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.nav a { padding: 8px 12px; border-radius: 8px; color: var(--muted); text-decoration: none; font-weight: 600; font-size: 15px; }
.nav a:hover { background: var(--bg); color: var(--text); }
.me { display: flex; align-items: center; gap: 8px; color: var(--text); text-decoration: none; font-weight: 600; }
.page { padding-top: 22px; padding-bottom: 48px; }
.page h1 { font-size: 26px; margin: 0 0 14px; }
.page h2 { font-size: 20px; margin: 0 0 8px; }
.page h3 { font-size: 17px; margin: 18px 0 8px; }
.page a { color: var(--brand); }
.box { background: var(--card); border-radius: 14px; padding: 20px; margin-bottom: 16px; box-shadow: 0 2px 12px rgba(15, 23, 42, .07); }
.box > :first-child { margin-top: 0; }
.muted { color: var(--muted); }
.small-t { font-size: 14px; }
.avatar { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; border-radius: 50%; background: var(--brand); color: #fff; font-weight: 700; font-size: 13px; object-fit: cover; flex: none; }
.avatar.lg { width: 64px; height: 64px; font-size: 22px; }
.avatar.xl { width: 96px; height: 96px; font-size: 32px; }
.hero { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.hero > div { flex: 1; min-width: 200px; }
.hero h1 { margin: 0 0 4px; }
.hero p { margin: 0; }
.ghost { text-decoration: none; display: inline-block; }
.ghost.small { padding: 6px 12px; font-size: 14px; }
.ghost.danger { color: var(--err); border-color: var(--err); }
.btn.inline { display: inline-block; width: auto; padding: 12px 22px; margin-top: 8px; }
.btn.sm { padding: 8px 16px; font-size: 14px; }
.btn.secondary { background: var(--bg); color: var(--text); }
.next { background: linear-gradient(135deg, var(--soft), var(--card)); border: 1px solid var(--line); }
.step { display: inline-block; background: var(--brand); color: #fff; padding: 2px 10px; border-radius: 999px; font-size: 13px; font-weight: 700; margin-bottom: 8px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid2 .box { margin-bottom: 0; }
.grid2 + .box, .grid2 { margin-bottom: 16px; }
.big { font-size: 30px; font-weight: 800; margin: 4px 0 10px; }
.big small { font-size: 14px; font-weight: 500; color: var(--muted); }
.bar { height: 10px; background: var(--bg); border-radius: 999px; overflow: hidden; margin: 8px 0; }
.bar i { display: block; height: 100%; background: var(--brand); border-radius: 999px; }
.list { padding-left: 20px; margin: 8px 0; }
.list li { margin: 8px 0; }
.list.tight li { margin: 4px 0; }
ul.list:not(ol) { list-style: none; padding-left: 0; }
.more { font-size: 14px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-size: 13px; font-weight: 600; }
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; white-space: nowrap; background: var(--bg); color: var(--muted); }
.badge.weak { background: var(--warn-bg); color: var(--warn); }
.badge.done { background: var(--good-bg); color: var(--good); }
.badge.strong { background: var(--info-bg); color: var(--info); }
.topic-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; flex-wrap: wrap; }
.topic-head h1, .topic-head h2 { margin: 0 0 4px; }
.topic-head h2 a { text-decoration: none; color: var(--text); }
.topic-card.weak { border-left: 5px solid #f59e0b; }
.topic-card.done { border-left: 5px solid #22c55e; }
.meta { display: flex; flex-wrap: wrap; gap: 14px; font-size: 14px; color: var(--muted); margin-bottom: 6px; }
.back { display: inline-block; margin-bottom: 12px; text-decoration: none; font-weight: 600; }
.text p { margin: 0 0 12px; line-height: 1.7; }
.read-btn.done { color: var(--good); border-color: var(--good); }
.flash { padding: 12px 14px; border-radius: 10px; margin-bottom: 14px; font-size: 15px; }
.flash.ok { background: var(--ok-bg); color: var(--ok); }
.flash.err { background: var(--err-bg); color: var(--err); }
.flash.info { background: var(--info-bg); color: var(--info); }
.flash a { color: inherit; }
textarea { display: block; width: 100%; margin-top: 6px; padding: 12px 14px; font: inherit; color: var(--text); background: var(--card); border: 1px solid var(--line); border-radius: 10px; outline: none; resize: vertical; }
textarea:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(37, 99, 235, .2); }
input:disabled { opacity: .7; background: var(--bg); }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 0 14px; }
label.check { display: flex; align-items: center; gap: 8px; margin-top: 24px; }
label.check input { width: auto; margin: 0; }
.avatar-row { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.avatar-row p { margin: 0 0 8px; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-top: 14px; }
.actions .btn.inline, .actions .ghost { margin-top: 0; }
/* test */
.q-head { display: flex; justify-content: space-between; font-size: 14px; }
.q-text { margin: 14px 0 !important; line-height: 1.4; }
.opt-list { display: grid; gap: 10px; }
.opt { text-align: left; padding: 14px 16px; background: var(--card); color: var(--text); border: 2px solid var(--line); border-radius: 12px; font: inherit; cursor: pointer; }
.opt:hover { border-color: var(--brand); }
.opt.sel { border-color: var(--brand); background: var(--soft); }
.dots { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 18px; }
.dot { width: 34px; height: 34px; border-radius: 8px; border: 1px solid var(--line); background: var(--card); color: var(--text); cursor: pointer; font: inherit; font-size: 13px; }
.dot.ans { background: var(--soft); border-color: var(--brand); }
.dot.cur { background: var(--brand); color: #fff; border-color: var(--brand); }
/* natija */
.result-top { text-align: center; }
.result-top.pass { border-top: 6px solid #22c55e; }
.result-top.fail { border-top: 6px solid #f59e0b; }
.score { font-size: 56px; font-weight: 800; margin: 4px 0; line-height: 1; }
.row-bar { margin-bottom: 14px; }
.row-title { display: flex; justify-content: space-between; gap: 10px; font-size: 15px; }
.row-title span { color: var(--muted); white-space: nowrap; }
.review { border-top: 1px solid var(--line); padding: 14px 0; }
.review:first-of-type { border-top: 0; }
.review .q { margin: 0 0 8px; }
.opts { list-style: none; padding: 0; margin: 0; }
.opts li { padding: 8px 12px; border-radius: 8px; margin: 4px 0; background: var(--bg); }
.opts li em { font-style: normal; font-size: 13px; font-weight: 700; margin-left: 8px; }
.opts li.correct { background: var(--good-bg); color: var(--good); }
.opts li.chosen:not(.correct) { background: var(--bad-bg); color: var(--bad); }
@media (max-width: 640px) {
  .grid2, .two { grid-template-columns: 1fr; }
  .nav { order: 3; flex-basis: 100%; }
  .me span { display: none; }
  .bar-inner { gap: 8px; }
}
.page a.btn, .page a.btn:hover { color: #fff; }
.page a.btn.secondary { color: var(--text); }