:root {
  --bg: #070a0f;
  --bg-elevated: #0b1018;
  --surface: #101722;
  --surface-2: #151e2b;
  --surface-3: #1a2533;
  --line: #283548;
  --line-soft: #1d2938;
  --text: #f4f7fa;
  --muted: #8e9bad;
  --muted-2: #657184;
  --gold: #d6a84f;
  --gold-soft: rgba(214, 168, 79, 0.14);
  --cyan: #2ee6d6;
  --cyan-soft: rgba(46, 230, 214, 0.12);
  --green: #48d597;
  --red: #ff5a6b;
  --red-soft: rgba(255, 90, 107, 0.12);
  --amber: #ffbd4a;
  --radius: 8px;
  --shadow: 0 18px 45px rgba(0, 0, 0, 0.25);
}

* { box-sizing: border-box; }

html { color-scheme: dark; }

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: 32px 32px;
  font-family: "Microsoft YaHei UI", "PingFang SC", "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: 0;
  overflow-x: hidden;
}

button, input, select, textarea { font: inherit; }
button { color: inherit; }

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hidden { display: none !important; }

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 238px minmax(0, 1fr);
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 28px 18px 22px;
  background: rgba(8, 12, 18, 0.96);
  border-right: 1px solid var(--line-soft);
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 8px 30px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  display: grid;
  place-items: center;
  background: var(--gold);
  color: #090b0f;
  border-radius: 6px;
  box-shadow: 0 0 24px rgba(214, 168, 79, 0.18);
  font-weight: 900;
}

.brand-mark span { transform: scaleX(0.88); font-size: 19px; }
.brand strong { display: block; font-size: 15px; }
.brand small { display: block; margin-top: 3px; color: var(--gold); font-size: 11px; font-weight: 700; }

.nav-list { display: grid; gap: 6px; }

.nav-item {
  width: 100%;
  min-height: 46px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 13px;
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  text-align: left;
  transition: 160ms ease;
}

.nav-item:hover { color: var(--text); background: rgba(255, 255, 255, 0.035); }
.nav-item.active { color: #fff; background: var(--gold-soft); border-color: rgba(214, 168, 79, 0.24); }
.nav-item.active .nav-icon { color: var(--gold); }
.nav-icon { width: 24px; font-size: 18px; text-align: center; }

.sidebar-status {
  margin-top: auto;
  padding: 14px 12px;
  border-top: 1px solid var(--line-soft);
  color: var(--muted);
}

.status-line { display: flex; align-items: center; gap: 8px; color: var(--text); font-size: 13px; }
.sidebar-status p { margin: 8px 0 0; font-size: 12px; line-height: 1.6; }
.live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 10px rgba(72, 213, 151, 0.7); }

.workspace { min-width: 0; }

.topbar {
  min-height: 92px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px clamp(24px, 3vw, 46px);
  border-bottom: 1px solid var(--line-soft);
  background: rgba(7, 10, 15, 0.82);
  backdrop-filter: blur(14px);
}

.eyebrow, .section-kicker {
  margin: 0;
  color: var(--gold);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.topbar h1 { margin: 3px 0 0; font-size: clamp(23px, 2.4vw, 31px); line-height: 1.2; }

.top-actions { display: flex; align-items: center; gap: 10px; }
.deadline { padding-right: 18px; text-align: right; border-right: 1px solid var(--line); }
.deadline span { display: block; color: var(--muted); font-size: 12px; }
.deadline strong { display: block; margin-top: 2px; font-size: 14px; }

.button {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 17px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 750;
  cursor: pointer;
  transition: transform 140ms ease, background 140ms ease, border-color 140ms ease;
}

.button:hover { transform: translateY(-1px); }
.button:active { transform: translateY(0); }
.button-primary { background: var(--gold); color: #0a0c10; border-color: var(--gold); }
.button-primary:hover { background: #e5ba66; }
.button-secondary { background: var(--surface-2); color: var(--text); border-color: var(--line); }
.button-secondary:hover { border-color: #43536a; }
.button-large { width: 100%; min-height: 50px; font-size: 16px; }
.icon-button {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface-2);
  cursor: pointer;
  font-size: 20px;
}

.mobile-nav { display: none; }
main { padding: 30px clamp(24px, 3vw, 46px) 48px; }
.view { display: none; animation: viewIn 220ms ease; }
.view.active { display: block; }
@keyframes viewIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }

.section-lead {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 20px;
}

.section-lead h2 { margin: 3px 0 0; font-size: 24px; line-height: 1.25; }
.filter-row, .table-tools { display: flex; align-items: center; gap: 9px; }
select, input, textarea {
  color: var(--text);
  background: #0d141e;
  border: 1px solid var(--line);
  border-radius: 6px;
}
select, input { min-height: 40px; padding: 0 12px; }
select { min-width: 132px; }
textarea { width: 100%; padding: 13px; resize: vertical; line-height: 1.6; }
input::placeholder, textarea::placeholder { color: var(--muted-2); }

.metric-grid {
  display: grid;
  grid-template-columns: 1.25fr repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 12px;
}

.metric-grid > *, .dashboard-grid > *, .exam-layout > *, .insight-grid > * { min-width: 0; }

.metric, .panel, .command-center {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(19, 27, 39, 0.96), rgba(12, 18, 27, 0.96));
  box-shadow: var(--shadow);
}

.metric { min-height: 154px; padding: 19px 20px; overflow: hidden; }
.metric.featured { border-color: rgba(214, 168, 79, 0.38); background: linear-gradient(145deg, rgba(47, 39, 23, 0.9), rgba(16, 22, 31, 0.98)); }
.danger-metric { border-color: rgba(255, 90, 107, 0.22); }
.metric-label { display: flex; align-items: center; justify-content: space-between; gap: 10px; color: var(--muted); font-size: 14px; }
.trend { padding: 2px 7px; border-radius: 99px; font-size: 11px; white-space: nowrap; }
.trend.positive { color: var(--green); background: rgba(72, 213, 151, 0.1); }
.metric-code { color: var(--muted-2); font-size: 10px; }
.metric-value { display: flex; align-items: baseline; gap: 5px; margin-top: 12px; }
.metric-value strong { font-family: "Segoe UI", sans-serif; font-size: 38px; line-height: 1; }
.metric-value span { color: var(--muted); font-size: 14px; }
.metric p { margin: 11px 0 0; color: var(--muted); font-size: 12px; }
.danger-metric .metric-value strong { color: var(--red); }

.progress-track { width: 100%; height: 5px; margin-top: 15px; border-radius: 5px; overflow: hidden; background: #232d3a; }
.progress-track i { display: block; width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--gold), #f0cb7f); transition: width 500ms ease; }

.dashboard-grid, .insight-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(300px, 0.85fr);
  gap: 12px;
  margin-bottom: 12px;
}

.panel { padding: 21px; }
.panel-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 19px; }
.panel-head h3 { margin: 3px 0 0; font-size: 18px; line-height: 1.3; }
.legend { display: inline-flex; align-items: center; gap: 7px; color: var(--muted); font-size: 12px; }
.legend i { width: 8px; height: 8px; border-radius: 2px; background: var(--cyan); }
.legend .danger-dot { background: var(--red); border-radius: 50%; }
.danger-text { color: var(--red); }

.bar-chart { display: grid; gap: 16px; }
.bar-row { display: grid; grid-template-columns: 86px minmax(0, 1fr) 48px; align-items: center; gap: 12px; }
.bar-row span { color: #c7d0dc; font-size: 13px; }
.bar-row strong { text-align: right; font-size: 13px; }
.bar-shell { height: 9px; border-radius: 2px; background: #212c39; overflow: hidden; }
.bar-fill { height: 100%; border-radius: 2px; background: linear-gradient(90deg, #1eb7ad, var(--cyan)); }
.bar-fill.warning { background: linear-gradient(90deg, #b5832a, var(--amber)); }

.risk-count { min-width: 32px; height: 32px; display: grid; place-items: center; border-radius: 50%; color: var(--red); background: var(--red-soft); font-weight: 800; }
.risk-list { display: grid; gap: 9px; }
.risk-item { padding: 12px 13px; border-left: 3px solid var(--line); background: rgba(255,255,255,0.025); }
.risk-item.high { border-color: var(--red); }
.risk-item.medium { border-color: var(--amber); }
.risk-item strong { display: block; font-size: 14px; }
.risk-item p { margin: 4px 0 0; color: var(--muted); font-size: 12px; line-height: 1.5; }

.roster-head { align-items: center; }
.search-box { display: flex; align-items: center; gap: 7px; min-width: 220px; height: 40px; padding: 0 11px; border: 1px solid var(--line); border-radius: 6px; background: #0d141e; color: var(--muted); }
.search-box input { width: 100%; min-height: auto; padding: 0; border: 0; background: transparent; outline: none; }
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { min-height: 50px; padding: 13px 12px; text-align: left; border-bottom: 1px solid var(--line-soft); white-space: nowrap; }
th { color: var(--muted); font-size: 12px; font-weight: 650; }
td { color: #dce3eb; font-size: 13px; }
tbody tr:hover { background: rgba(255,255,255,0.022); }
.person-cell { display: flex; align-items: center; gap: 10px; }
.avatar { width: 31px; height: 31px; display: grid; place-items: center; border-radius: 50%; background: var(--surface-3); color: var(--cyan); font-size: 12px; font-weight: 800; }
.status-pill, .risk-pill { display: inline-flex; align-items: center; min-height: 24px; padding: 0 9px; border-radius: 99px; font-size: 11px; font-weight: 700; }
.status-pill.passed { color: var(--green); background: rgba(72, 213, 151, 0.1); }
.status-pill.failed { color: var(--red); background: var(--red-soft); }
.status-pill.pending { color: var(--muted); background: rgba(142, 155, 173, 0.1); }
.risk-pill.low { color: var(--green); border: 1px solid rgba(72, 213, 151, 0.25); }
.risk-pill.medium { color: var(--amber); border: 1px solid rgba(255, 189, 74, 0.25); }
.risk-pill.high { color: var(--red); border: 1px solid rgba(255, 90, 107, 0.28); }

.exam-layout { display: grid; grid-template-columns: minmax(0, 1fr) 294px; gap: 14px; align-items: start; }
.exam-main, .exam-side { border: 1px solid var(--line-soft); border-radius: var(--radius); background: rgba(13, 19, 28, 0.95); box-shadow: var(--shadow); }
.exam-main { min-height: 650px; }
.exam-side { position: sticky; top: 20px; padding: 20px; }
.exam-stage { display: none; }
.exam-stage.active { display: block; }

#exam-start { padding: clamp(28px, 4vw, 54px); }
.exam-intro { max-width: 650px; padding-right: 84px; position: relative; }
.exam-intro h2 { max-width: 560px; margin: 7px 0 12px; font-size: clamp(28px, 4vw, 44px); line-height: 1.14; }
.exam-intro p { max-width: 650px; margin: 0; color: var(--muted); line-height: 1.8; }
.cert-mark { position: absolute; right: 0; top: 0; width: 69px; height: 69px; display: grid; place-items: center; color: var(--gold); border: 1px solid rgba(214,168,79,.42); font-size: 21px; font-weight: 900; transform: rotate(3deg); }
.cert-mark span { display: block; margin-top: -16px; font-size: 10px; }

.candidate-form { max-width: 760px; display: grid; grid-template-columns: 1fr 1fr; gap: 17px; margin-top: 35px; }
.candidate-form label:not(.consent) { display: grid; gap: 7px; }
.candidate-form .full-span { grid-column: 1 / -1; }
.candidate-form label > span { color: #c2ccd8; font-size: 13px; }
.candidate-form input, .candidate-form select { width: 100%; min-height: 46px; }
.exam-rules { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
.exam-rules div { padding: 12px; text-align: center; background: var(--bg-elevated); }
.exam-rules div + div { border-left: 1px solid var(--line); }
.exam-rules strong { display: block; color: var(--gold); font-size: 21px; }
.exam-rules span { display: block; color: var(--muted); font-size: 11px; }
.consent { grid-column: 1 / -1; display: flex; align-items: flex-start; gap: 9px; cursor: pointer; }
.consent input { width: 17px; height: 17px; min-height: 0; margin: 3px 0 0; accent-color: var(--gold); }
.candidate-form .button { grid-column: 1 / -1; }

#exam-running { padding: clamp(24px, 3vw, 38px); }
.exam-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.exam-toolbar strong { display: block; margin-top: 2px; }
.timer { min-width: 88px; padding: 9px 13px; border: 1px solid rgba(46, 230, 214, .26); border-radius: 6px; color: var(--cyan); text-align: center; font-family: Consolas, monospace; font-size: 19px; }
.timer.warning { color: var(--red); border-color: rgba(255,90,107,.4); }
.exam-progress { margin: 17px 0 27px; }
.exam-progress i { background: var(--cyan); }
.question-card { min-height: 352px; padding: clamp(22px, 3vw, 34px); border: 1px solid var(--line); border-radius: 8px; background: #0b111a; }
.question-meta { display: flex; flex-wrap: wrap; gap: 8px; }
.question-meta span { padding: 4px 9px; border-radius: 4px; color: var(--muted); background: var(--surface-2); font-size: 11px; }
.question-meta #question-category { color: var(--cyan); background: var(--cyan-soft); }
.question-meta .risk-tag { color: var(--red); background: var(--red-soft); }
.question-card h3 { margin: 20px 0 24px; font-size: clamp(18px, 2.4vw, 23px); line-height: 1.65; }
.option-list { display: grid; gap: 11px; }
.option-item { position: relative; display: flex; align-items: flex-start; gap: 12px; min-height: 51px; padding: 13px 15px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); cursor: pointer; transition: 140ms ease; }
.option-item:hover { border-color: #465873; background: #151e2a; }
.option-item.selected { border-color: var(--cyan); background: var(--cyan-soft); }
.option-item input { position: absolute; opacity: 0; pointer-events: none; }
.option-key { width: 23px; height: 23px; flex: 0 0 23px; display: grid; place-items: center; border: 1px solid #526177; border-radius: 50%; color: var(--muted); font-size: 11px; }
.option-item.selected .option-key { color: #061412; background: var(--cyan); border-color: var(--cyan); }
.option-text { line-height: 1.55; font-size: 14px; }
.exam-actions { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; margin-top: 18px; }

.side-heading { display: flex; align-items: center; gap: 9px; padding-bottom: 15px; border-bottom: 1px solid var(--line-soft); font-size: 14px; }
.monitor-list { padding: 0; margin: 13px 0 18px; list-style: none; }
.monitor-list li { display: flex; justify-content: space-between; gap: 14px; padding: 8px 0; color: var(--muted); font-size: 12px; }
.monitor-list strong { color: var(--text); font-weight: 650; }
.question-map { display: grid; grid-template-columns: repeat(5, 1fr); gap: 7px; }
.map-item { aspect-ratio: 1; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 4px; background: var(--surface); color: var(--muted); font-size: 11px; cursor: pointer; }
.map-item.answered { color: #071410; background: var(--green); border-color: var(--green); }
.map-item.current { outline: 2px solid var(--gold); outline-offset: 1px; }
.map-item.marked { box-shadow: inset 0 -3px 0 var(--amber); }
.side-note { margin-top: 19px; padding: 13px; border: 1px solid rgba(214,168,79,.2); background: var(--gold-soft); }
.side-note span { color: var(--gold); font-size: 11px; font-weight: 800; }
.side-note p { margin: 5px 0 0; color: #c3b79e; font-size: 11px; line-height: 1.65; }

#exam-result { padding: clamp(24px, 4vw, 44px); }
.result-hero { display: flex; align-items: center; gap: 28px; padding-bottom: 27px; border-bottom: 1px solid var(--line-soft); }
.score-ring { --score: 0; width: 132px; height: 132px; flex: 0 0 132px; display: grid; place-items: center; border-radius: 50%; background: conic-gradient(var(--gold) calc(var(--score) * 1%), #28313d 0); position: relative; }
.score-ring::before { content: ""; position: absolute; inset: 9px; border-radius: 50%; background: var(--bg-elevated); }
.score-ring > div { position: relative; z-index: 1; text-align: center; }
.score-ring strong { display: block; font-size: 38px; line-height: 1; }
.score-ring span { display: block; margin-top: 6px; color: var(--muted); font-size: 11px; }
.result-badge { display: inline-flex; min-height: 26px; align-items: center; padding: 0 10px; border-radius: 99px; color: var(--green); background: rgba(72,213,151,.1); font-size: 12px; font-weight: 800; }
.result-hero h2 { margin: 9px 0 7px; font-size: 27px; }
.result-hero p { max-width: 620px; margin: 0; color: var(--muted); }
.result-grid { display: grid; grid-template-columns: repeat(4, 1fr); margin: 23px 0; border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
.result-block { padding: 16px; background: var(--surface); }
.result-block + .result-block { border-left: 1px solid var(--line); }
.result-block span { display: block; color: var(--muted); font-size: 11px; }
.result-block strong { display: block; margin-top: 4px; font-size: 19px; }
.diagnosis-block, .review-block { padding: 21px; margin-top: 12px; border: 1px solid var(--line); border-radius: 7px; background: #0b111a; }
.mini-bars { display: grid; grid-template-columns: repeat(2, 1fr); gap: 13px 24px; }
.mini-bar-head { display: flex; justify-content: space-between; gap: 10px; margin-bottom: 6px; font-size: 12px; }
.mini-bar-head span { color: var(--muted); }
.advice-box { margin-top: 20px; padding: 15px; border-left: 3px solid var(--gold); background: var(--gold-soft); color: #dcd3c1; font-size: 13px; line-height: 1.7; }
.review-item { padding: 15px 0; border-top: 1px solid var(--line-soft); }
.review-item:first-child { padding-top: 0; border-top: 0; }
.review-item strong { display: block; font-size: 14px; }
.review-item p { margin: 5px 0 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
.review-item .correct-answer { color: var(--green); }
.result-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; }

.bank-summary { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; margin-bottom: 12px; }
.bank-stat { min-height: 94px; padding: 15px; border: 1px solid var(--line-soft); border-radius: 7px; background: var(--surface); }
.bank-stat span { display: block; color: var(--muted); font-size: 12px; }
.bank-stat strong { display: block; margin-top: 6px; color: var(--cyan); font-size: 24px; }
.import-panel { margin-bottom: 12px; border-color: rgba(46,230,214,.22); }
.import-panel p { color: var(--muted); font-size: 13px; }
.import-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 12px; }
.form-message { min-height: 22px; margin-top: 8px; color: var(--green); font-size: 12px; }
.risk-yes { color: var(--red); }

.report-time { color: var(--muted); font-size: 12px; }
.command-center { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 25px; min-height: 160px; padding: 27px 30px; margin-bottom: 12px; border-color: rgba(46,230,214,.23); }
.command-copy h3 { margin: 5px 0 8px; font-size: 24px; }
.command-copy p { max-width: 820px; margin: 0; color: var(--muted); line-height: 1.75; }
.health-score { min-width: 150px; padding-left: 25px; border-left: 1px solid var(--line); text-align: center; }
.health-score span { display: block; color: var(--muted); font-size: 12px; }
.health-score strong { display: inline-block; margin-top: 4px; color: var(--cyan); font-size: 45px; line-height: 1; }
.health-score small { color: var(--muted); }
.training-actions, .ranking-list { display: grid; gap: 10px; }
.training-item { display: grid; grid-template-columns: 34px minmax(0,1fr) auto; gap: 11px; align-items: center; padding: 12px; border: 1px solid var(--line-soft); background: rgba(255,255,255,.018); }
.training-priority { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 4px; color: var(--red); background: var(--red-soft); font-size: 11px; font-weight: 800; }
.training-item strong, .rank-item strong { display: block; font-size: 13px; }
.training-item p { margin: 3px 0 0; color: var(--muted); font-size: 11px; }
.training-item > span:last-child { color: var(--gold); font-size: 12px; }
.rank-item { display: grid; grid-template-columns: 30px minmax(0,1fr) 45px; gap: 10px; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--line-soft); }
.rank-number { width: 24px; height: 24px; display: grid; place-items: center; color: var(--muted); font-size: 11px; }
.rank-item:first-child .rank-number { color: #0b0d10; background: var(--gold); border-radius: 4px; font-weight: 900; }
.rank-item small { color: var(--muted); }
.rank-item > strong { text-align: right; color: var(--cyan); }
.wrong-ranking { display: grid; gap: 12px; }
.wrong-item { display: grid; grid-template-columns: minmax(180px, 1fr) minmax(120px, 2fr) 60px; gap: 14px; align-items: center; }
.wrong-item span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 13px; }
.wrong-track { height: 8px; border-radius: 2px; background: #222c39; overflow: hidden; }
.wrong-track i { display: block; height: 100%; background: linear-gradient(90deg, #a93645, var(--red)); }
.wrong-item strong { text-align: right; color: var(--red); font-size: 12px; }

.toast { position: fixed; right: 24px; bottom: 24px; z-index: 100; max-width: min(360px, calc(100vw - 48px)); padding: 13px 16px; border: 1px solid rgba(46,230,214,.3); border-radius: 6px; background: #111a24; color: var(--text); box-shadow: var(--shadow); opacity: 0; transform: translateY(14px); pointer-events: none; transition: 180ms ease; }
.toast.show { opacity: 1; transform: translateY(0); }
.toast.error { border-color: rgba(255,90,107,.45); }

@media (max-width: 1120px) {
  .app-shell { grid-template-columns: 84px minmax(0, 1fr); }
  .sidebar { padding-inline: 12px; }
  .brand { justify-content: center; padding-inline: 0; }
  .brand > div:last-child, .nav-item span:last-child, .sidebar-status p { display: none; }
  .nav-item { justify-content: center; padding: 0; }
  .sidebar-status { padding-inline: 0; }
  .status-line { justify-content: center; font-size: 0; }
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .exam-layout { grid-template-columns: minmax(0, 1fr) 260px; }
  .bank-summary { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 860px) {
  .app-shell { display: block; }
  .sidebar { display: none; }
  .topbar { min-height: 80px; padding: 16px 20px; }
  .deadline, .top-actions .button-secondary { display: none; }
  .mobile-nav { display: grid; grid-template-columns: repeat(4, 1fr); position: sticky; top: 0; z-index: 20; padding: 8px; border-bottom: 1px solid var(--line); background: rgba(7,10,15,.95); backdrop-filter: blur(12px); }
  .mobile-nav button { min-width: 0; min-height: 38px; padding: 0 4px; border: 0; border-radius: 5px; color: var(--muted); background: transparent; font-size: 13px; }
  .mobile-nav button.active { color: #0b0d10; background: var(--gold); font-weight: 800; }
  main { padding: 22px 17px 36px; }
  .dashboard-grid, .insight-grid { grid-template-columns: 1fr; }
  .exam-layout { grid-template-columns: 1fr; }
  .exam-side { position: static; }
  .question-map { grid-template-columns: repeat(8, 1fr); }
  .result-grid { grid-template-columns: repeat(2, 1fr); }
  .result-block:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .result-block:nth-child(4) { border-top: 1px solid var(--line); }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .topbar .button-primary { display: none; }
  .topbar h1 { font-size: 22px; }
  .section-lead, .roster-head { align-items: flex-start; flex-direction: column; }
  .filter-row, .table-tools { width: 100%; }
  .filter-row select, .table-tools select { flex: 1; min-width: 0; }
  .search-box { min-width: 0; flex: 1; }
  .metric-grid { grid-template-columns: 1fr; }
  .metric { min-height: 138px; }
  .panel { padding: 17px; }
  .bar-row { grid-template-columns: 72px minmax(0, 1fr) 42px; gap: 8px; }
  .candidate-form { grid-template-columns: 1fr; }
  .candidate-form > * { grid-column: 1 !important; }
  .exam-rules { grid-template-columns: repeat(2, 1fr); }
  .exam-rules div:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .exam-rules div:nth-child(4) { border-top: 1px solid var(--line); }
  #exam-start { padding: 26px 20px; }
  .exam-intro { padding-right: 0; }
  .cert-mark { display: none; }
  .exam-intro h2 { font-size: 29px; }
  .exam-actions { grid-template-columns: 1fr 1fr; }
  #next-question { grid-column: 1 / -1; grid-row: 1; }
  .question-map { grid-template-columns: repeat(6, 1fr); }
  .result-hero { align-items: flex-start; flex-direction: column; }
  .score-ring { width: 112px; height: 112px; flex-basis: 112px; }
  .mini-bars { grid-template-columns: 1fr; }
  .result-actions { display: grid; grid-template-columns: 1fr; }
  .bank-summary { grid-template-columns: repeat(2, 1fr); }
  .command-center { grid-template-columns: 1fr; padding: 22px; }
  .health-score { padding: 18px 0 0; border-left: 0; border-top: 1px solid var(--line); text-align: left; }
  .wrong-item { grid-template-columns: minmax(0, 1fr) 50px; }
  .wrong-track { grid-column: 1 / -1; grid-row: 2; }
  .wrong-item strong { grid-column: 2; grid-row: 1; }
  .import-actions { display: grid; grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}