/* CRAGE Lab — terminal/cyberpunk theme */
:root {
  --bg: #0b0f14;
  --bg-soft: #11161d;
  --panel: #0f141b;
  --panel-2: #141a23;
  --border: #1f2a36;
  --border-soft: #18222d;
  --text: #d7e3ee;
  --muted: #7a8a99;
  --accent: #00d4ff;
  --accent-2: #7dffb1;
  --accent-dim: #0094b3;
  --warn: #ffb454;
  --danger: #ff4d6d;
  --info: #6ec1ff;
  --gold: #ffd166;
  --mono: ui-monospace, "JetBrains Mono", "Fira Code", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font-family: var(--sans); min-height: 100%; }
body {
  background:
    radial-gradient(1200px 600px at 10% -20%, rgba(0,212,255,0.08), transparent 60%),
    radial-gradient(1200px 600px at 110% 110%, rgba(125,255,177,0.05), transparent 60%),
    var(--bg);
}
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-2); }
code { font-family: var(--mono); }

/* scanlines for landing */
.scanlines {
  position: fixed; inset: 0; pointer-events: none; z-index: 1;
  background: repeating-linear-gradient(
    to bottom, rgba(255,255,255,0.015) 0 1px, transparent 1px 3px
  );
  mix-blend-mode: overlay;
}

/* ===== Topbar ===== */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.6rem 1rem; background: var(--panel);
  border-bottom: 1px solid var(--border); font-family: var(--mono);
  position: sticky; top: 0; z-index: 5;
}
.brand { display: flex; gap: 0.7rem; align-items: baseline; }
.logo { color: var(--accent); font-weight: 700; letter-spacing: 0.05em; }
.title { font-weight: 600; }
.subtitle { color: var(--muted); font-size: 0.85rem; }
.topbar nav a {
  color: var(--muted); margin: 0 0.35rem; font-size: 0.82rem;
  padding: 0.2rem 0.5rem; border-radius: 3px;
}
.topbar nav a:hover { color: var(--accent); }
.topbar nav a.active { color: var(--accent); border: 1px solid var(--border); }
.status { display: flex; align-items: center; gap: 0.7rem; font-size: 0.85rem; color: var(--muted); }
.status .badge {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em;
  padding: 0.15rem 0.45rem; border-radius: 3px; border: 1px solid var(--border);
}
.status .badge.ctf { color: var(--accent); border-color: rgba(0,212,255,0.4); }
.status .badge.god { color: var(--gold); border-color: rgba(255,209,102,0.4); }
.dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 8px var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse { 50% { opacity: 0.4; } }

.ghost-btn {
  background: transparent; border: 1px solid var(--border); color: var(--text);
  font-family: var(--mono); font-size: 0.8rem; padding: 0.35rem 0.7rem;
  cursor: pointer; letter-spacing: 0.05em; transition: all 0.15s ease;
  border-radius: 3px;
}
.ghost-btn:hover { border-color: var(--accent); color: var(--accent); }
.ghost-btn.small { padding: 0.25rem 0.55rem; font-size: 0.75rem; }
.ghost-btn.gold:hover { border-color: var(--gold); color: var(--gold); }

/* ===== Landing page ===== */
.landing-body {
  display: flex; flex-direction: column; min-height: 100vh;
  font-family: var(--sans);
}
.deck-topbar {
  padding: 0.7rem 1.4rem; display: flex; justify-content: space-between; align-items: center;
  border-bottom: 1px solid var(--border); position: relative; z-index: 2;
}
.deck-brand { display: flex; gap: 0.8rem; align-items: baseline; font-family: var(--mono); }
.brand-logo {
  font-weight: 800; letter-spacing: 0.04em; color: var(--text); font-size: 1.05rem;
}
.brand-num { color: var(--accent); }
.brand-cursor { color: var(--accent); animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.deck-brand-tag { color: var(--muted); font-size: 0.78rem; letter-spacing: 0.08em; }

.landing-main {
  flex: 1; max-width: 1100px; margin: 0 auto; padding: 3rem 1.5rem 2rem;
  position: relative; z-index: 2;
}
.landing-hero { text-align: center; margin-bottom: 2.5rem; }
.eyebrow {
  font-family: var(--mono); font-size: 0.78rem; color: var(--accent);
  letter-spacing: 0.14em; margin-bottom: 0.6rem;
}
.landing-title {
  font-size: 2.6rem; margin: 0 0 0.7rem 0; letter-spacing: -0.01em;
  font-weight: 800;
}
.landing-title .accent { color: var(--accent); }
.landing-sub {
  color: var(--muted); font-size: 1.02rem; max-width: 720px; margin: 0 auto;
  line-height: 1.55;
}

.mode-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem;
  margin-top: 2rem;
}
@media (max-width: 760px) { .mode-grid { grid-template-columns: 1fr; } }

.mode-card {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 2.2rem 1.4rem;
  background: var(--panel); border: 1px solid var(--border); border-radius: 6px;
  color: var(--text); transition: all 0.18s ease; position: relative;
  min-height: 220px;
}
.mode-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.mode-card.god:hover { border-color: var(--gold); }
.mode-tag {
  font-family: var(--mono); font-size: 0.72rem; color: var(--muted);
  letter-spacing: 0.08em; margin-bottom: 0.4rem;
}
.mode-icon { font-size: 2.4rem; margin-bottom: 0.7rem; }
.mode-card h2 {
  margin: 0 0 0.9rem 0; font-size: 1.4rem;
}
.mode-card.ctf h2 { color: var(--accent); }
.mode-card.god h2 { color: var(--gold); }
.mode-tagline {
  color: var(--muted); font-family: var(--mono); font-size: 0.82rem;
  margin: 0 0 0.7rem 0;
}
.mode-desc { color: var(--text); line-height: 1.55; font-size: 0.94rem; margin: 0 0 0.9rem; }
.mode-bullets {
  margin: 0 0 1rem 0; padding-left: 1.2rem; color: var(--muted); font-size: 0.88rem;
  line-height: 1.7;
}
.mode-bullets code {
  background: rgba(255,255,255,0.05); padding: 0.05rem 0.3rem;
  border-radius: 3px; color: var(--accent);
}
.mode-cta {
  font-family: var(--mono); font-size: 0.85rem; color: var(--accent);
  letter-spacing: 0.06em;
}
.mode-card.god .mode-cta { color: var(--gold); }
.mode-cta.locked { color: var(--muted); }

.landing-footer-row {
  margin-top: 2.4rem; display: flex; gap: 1.5rem; justify-content: center;
  flex-wrap: wrap;
}
.landing-link {
  color: var(--muted); font-family: var(--mono); font-size: 0.85rem;
}
.landing-link:hover { color: var(--accent); }

/* ===== Auth modal ===== */
.auth-modal {
  position: fixed; inset: 0; background: rgba(0,0,0,0.7);
  display: flex; align-items: center; justify-content: center; z-index: 50;
  backdrop-filter: blur(2px);
}
.auth-modal[hidden] { display: none; }
.auth-card {
  background: var(--panel); border: 1px solid var(--gold);
  border-radius: 6px; width: min(440px, 92vw);
  box-shadow: 0 0 30px rgba(255,209,102,0.15);
}
.auth-head {
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.7rem 1rem; border-bottom: 1px solid var(--border);
  font-family: var(--mono); font-size: 0.85rem; color: var(--gold);
}
.auth-icon { font-size: 1rem; }
.auth-title { flex: 1; letter-spacing: 0.04em; }
.auth-close {
  background: transparent; border: none; color: var(--muted);
  cursor: pointer; font-size: 1.2rem;
}
.auth-close:hover { color: var(--text); }
.auth-body { padding: 1rem; }
.auth-body p { margin: 0 0 0.7rem 0; color: var(--muted); font-size: 0.9rem; }
.auth-input-row { display: flex; gap: 0.5rem; }
.auth-input-row input {
  flex: 1; background: var(--bg); border: 1px solid var(--border);
  color: var(--text); padding: 0.5rem 0.7rem; border-radius: 3px;
  font-family: var(--mono); font-size: 1rem; letter-spacing: 0.2em;
}
.auth-input-row input:focus { outline: none; border-color: var(--gold); }
.auth-submit {
  background: var(--gold); border: none; color: #000;
  font-family: var(--mono); font-weight: 700; padding: 0 1rem;
  cursor: pointer; border-radius: 3px; letter-spacing: 0.05em;
}
.auth-submit:disabled { opacity: 0.5; cursor: not-allowed; }
.auth-status { margin-top: 0.6rem; font-family: var(--mono); font-size: 0.82rem; min-height: 1.1em; }
.auth-status.warn { color: var(--warn); }
.auth-status.info { color: var(--info); }
.auth-status.ok { color: var(--accent-2); }
.auth-status.danger { color: var(--danger); }
.auth-hint {
  margin-top: 0.6rem; color: var(--muted); font-size: 0.78rem;
  font-family: var(--mono);
}

/* ===== Hub (app.html) ===== */
.hub-main {
  max-width: 1200px; margin: 0 auto; padding: 1.6rem 1.4rem 3rem;
}
.hub-intro {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 1.2rem; flex-wrap: wrap; margin-bottom: 1.5rem;
}
.hub-intro h1 {
  margin: 0 0 0.4rem 0; font-size: 1.7rem; letter-spacing: -0.005em;
}
.hub-intro p { color: var(--muted); margin: 0; max-width: 760px; line-height: 1.5; }
.hub-scorebar {
  background: var(--panel); border: 1px solid var(--border); border-radius: 4px;
  padding: 0.7rem 1rem; font-family: var(--mono); font-size: 0.85rem;
  display: flex; gap: 1.4rem; flex-wrap: wrap;
}
.hub-scorebar .label { color: var(--muted); }
.hub-scorebar .value { color: var(--accent); font-weight: 700; margin-left: 0.3rem; }

.module-block {
  margin-top: 1.8rem; background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 6px; padding: 1rem 1.2rem 1.2rem;
}
.module-head {
  display: flex; align-items: baseline; gap: 0.7rem; margin-bottom: 0.4rem;
}
.module-num {
  font-family: var(--mono); color: var(--accent); font-size: 0.85rem;
  letter-spacing: 0.06em;
}
.module-head h2 { margin: 0; font-size: 1.15rem; }
.module-block > p {
  color: var(--muted); font-size: 0.9rem; margin: 0 0 0.9rem 0; line-height: 1.5;
}

.lab-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.9rem; }
@media (max-width: 900px) { .lab-grid { grid-template-columns: 1fr; } }

.lab-card {
  display: block; padding: 0.9rem; background: var(--panel);
  border: 1px solid var(--border); border-radius: 4px; color: var(--text);
  transition: all 0.15s ease; position: relative;
}
.lab-card:hover { border-color: var(--accent); transform: translateY(-1px); }
.lab-card .lab-id {
  font-family: var(--mono); font-size: 0.72rem; color: var(--accent);
  letter-spacing: 0.08em;
}
.lab-card h3 { margin: 0.25rem 0 0.4rem 0; font-size: 0.98rem; }
.lab-card .lab-blurb { color: var(--muted); font-size: 0.85rem; line-height: 1.45; margin: 0; }
.lab-card .lab-meta {
  margin-top: 0.7rem; display: flex; gap: 0.5rem; align-items: center;
  font-family: var(--mono); font-size: 0.72rem; color: var(--muted);
}
.lab-card .check {
  margin-left: auto; color: var(--accent-2); font-weight: 700;
}
.lab-card.solved { border-color: rgba(125,255,177,0.4); }

/* ===== Lab page ===== */
.lab-main {
  display: grid; grid-template-columns: 320px 1fr; gap: 0;
  min-height: calc(100vh - 52px);
}
@media (max-width: 900px) { .lab-main { grid-template-columns: 1fr; } }

.guide {
  background: var(--panel); border-right: 1px solid var(--border);
  padding: 1rem 1.1rem 2rem; overflow-y: auto;
}
.guide h2 {
  font-family: var(--mono); font-size: 0.95rem; color: var(--accent);
  margin: 0 0 0.8rem 0; letter-spacing: 0.06em;
}
.guide.god h2 { color: var(--gold); }

/* Mission sidebar (CTF) */
.mission-tag {
  font-family: var(--mono); font-size: 0.72rem; color: var(--muted);
  letter-spacing: 0.06em; margin-bottom: 0.3rem;
}
.mission-objective {
  background: var(--panel-2); border-left: 2px solid var(--accent);
  padding: 0.6rem 0.8rem; border-radius: 0 4px 4px 0; margin-bottom: 1rem;
}
.mission-objective p { margin: 0; font-size: 0.92rem; line-height: 1.5; }

.mission-hints { margin-bottom: 1rem; }
.mission-hint {
  margin-bottom: 0.5rem; background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 3px;
}
.hint-reveal-btn {
  width: 100%; background: transparent; border: none; color: var(--text);
  text-align: left; padding: 0.5rem 0.7rem; cursor: pointer;
  font-family: var(--mono); font-size: 0.82rem;
}
.hint-reveal-btn:hover { color: var(--accent); }
.hint-cost { color: var(--warn); }
.hint-body {
  padding: 0 0.7rem 0.6rem; font-size: 0.85rem; line-height: 1.5;
  color: var(--muted); border-top: 1px dashed var(--border-soft);
  padding-top: 0.5rem;
}

.mission-flag .flag-input-row { display: flex; gap: 0.5rem; }
.flag-input {
  flex: 1; background: var(--bg); border: 1px solid var(--border);
  color: var(--text); padding: 0.45rem 0.6rem; border-radius: 3px;
  font-family: var(--mono); font-size: 0.88rem;
}
.flag-input:focus { outline: none; border-color: var(--accent); }
.flag-submit {
  background: var(--accent); color: #000; border: none;
  padding: 0 0.9rem; cursor: pointer; border-radius: 3px;
  font-family: var(--mono); font-weight: 700; letter-spacing: 0.04em;
}
.flag-submit:hover { background: var(--accent-2); }
.flag-status { margin-top: 0.5rem; font-family: var(--mono); font-size: 0.82rem; min-height: 1em; }
.flag-status.ok { color: var(--accent-2); }
.flag-status.warn { color: var(--warn); }
.flag-status.danger { color: var(--danger); }

.mission-score {
  margin-top: 0.8rem; padding: 0.5rem 0.7rem; background: var(--panel-2);
  border: 1px dashed var(--border); border-radius: 3px;
  font-family: var(--mono); font-size: 0.78rem; color: var(--muted);
}
.mission-score .ok { color: var(--accent-2); }

.mission-foot, .guide-foot {
  margin-top: 1rem; padding-top: 0.8rem; border-top: 1px dashed var(--border);
  font-family: var(--mono); font-size: 0.78rem;
}
.mission-link { color: var(--muted); }
.mission-link:hover { color: var(--accent); }

/* God walkthrough */
.steps { list-style: none; padding: 0; margin: 0; }
.steps li {
  border-left: 2px solid var(--border);
  padding: 0.7rem 0.8rem; margin-bottom: 0.6rem;
  border-radius: 0 4px 4px 0; background: var(--panel-2);
}
.steps li.god-step { border-left-color: var(--gold); }
.step-head {
  display: flex; gap: 0.5rem; align-items: baseline;
  font-family: var(--mono); font-size: 0.85rem;
}
.num { color: var(--gold); font-weight: 700; min-width: 1.6rem; }
.label { color: var(--text); font-weight: 600; }
.steps p { margin: 0.35rem 0; font-size: 0.85rem; color: var(--muted); line-height: 1.55; }
.say {
  margin: 0.45rem 0; padding: 0.45rem 0.6rem;
  border-left: 2px solid rgba(255,209,102,0.4);
  background: linear-gradient(90deg, rgba(255,209,102,0.05), transparent 70%);
  font-size: 0.82rem; line-height: 1.55; color: #d3c8a8;
  font-style: italic; border-radius: 0 3px 3px 0;
}
.say strong { color: var(--gold); font-style: normal; }
.god-answer {
  margin: 0.5rem 0; padding: 0.55rem 0.7rem;
  background: rgba(125,255,177,0.06); border: 1px solid rgba(125,255,177,0.25);
  border-radius: 3px; font-family: var(--mono); font-size: 0.82rem;
  color: var(--accent-2);
}
.god-answer .lbl { color: var(--muted); margin-right: 0.4rem; }

/* ===== Lab content area ===== */
.lab-content {
  padding: 1.4rem 1.8rem 3rem; overflow-y: auto;
  background: var(--bg);
  max-width: 1000px;
}
.lab-content h1 {
  margin: 0 0 0.3rem 0; font-size: 1.5rem;
}
.lab-content .lab-sub {
  color: var(--muted); font-family: var(--mono); font-size: 0.85rem;
  letter-spacing: 0.04em; margin-bottom: 1.4rem;
}

.scenario, .artifact, .challenge {
  margin-bottom: 1.3rem; background: var(--panel);
  border: 1px solid var(--border); border-radius: 6px; padding: 1rem 1.2rem;
}
.scenario h3, .artifact h3, .challenge h3 {
  margin: 0 0 0.6rem 0; font-family: var(--mono); font-size: 0.85rem;
  color: var(--accent); letter-spacing: 0.07em; text-transform: uppercase;
}
.challenge h3 { color: var(--warn); }
.lab-content p { line-height: 1.6; margin: 0.5rem 0; }
.lab-content ul, .lab-content ol { line-height: 1.65; padding-left: 1.4rem; }
.lab-content li { margin-bottom: 0.25rem; }
.lab-content table {
  width: 100%; border-collapse: collapse; margin: 0.6rem 0;
  font-size: 0.9rem;
}
.lab-content th, .lab-content td {
  border: 1px solid var(--border); padding: 0.4rem 0.6rem; text-align: left;
}
.lab-content th { background: var(--panel-2); color: var(--accent); font-family: var(--mono); }
.lab-content blockquote {
  margin: 0.6rem 0; padding: 0.5rem 0.8rem;
  border-left: 2px solid var(--border-soft); color: var(--muted);
  font-style: italic;
}
.lab-content code {
  background: rgba(255,255,255,0.05); padding: 0.05rem 0.35rem;
  border-radius: 3px; color: var(--accent); font-size: 0.88em;
}
.lab-content pre {
  background: #06090d; border: 1px solid var(--border);
  border-radius: 4px; padding: 0.7rem 0.9rem; overflow-x: auto;
  font-size: 0.85rem; line-height: 1.5;
}
.lab-content pre code { background: transparent; padding: 0; color: var(--text); }
.flag-format {
  font-family: var(--mono); font-size: 0.85rem; color: var(--accent-2);
  background: rgba(125,255,177,0.05); padding: 0.4rem 0.6rem;
  border-left: 2px solid rgba(125,255,177,0.4); border-radius: 0 3px 3px 0;
  margin-top: 0.6rem;
}

.artifact details { margin-top: 0.4rem; }
.artifact summary {
  cursor: pointer; color: var(--accent); font-family: var(--mono);
  font-size: 0.85rem; padding: 0.3rem 0;
}
.artifact summary:hover { color: var(--accent-2); }

/* footnote */
.footnote {
  border-top: 1px solid var(--border); padding: 0.6rem 1rem;
  font-size: 0.78rem; color: var(--muted); text-align: center;
  font-family: var(--mono);
}
.footnote .credit-link {
  color: var(--accent); text-decoration: none;
  border-bottom: 1px dotted rgba(0,212,255,0.4);
}
.footnote .credit-link:hover { color: var(--accent-2); }

/* Celebration overlay */
.celebrate {
  position: fixed; inset: 0; background: rgba(0,0,0,0.85);
  display: flex; align-items: center; justify-content: center;
  z-index: 100; backdrop-filter: blur(4px);
}
.celebrate[hidden] { display: none; }
.celebrate-card {
  background: var(--panel); border: 1px solid var(--accent);
  border-radius: 8px; padding: 2rem; max-width: 520px; text-align: center;
  box-shadow: 0 0 40px rgba(0,212,255,0.25);
}
.celebrate-card h2 { color: var(--accent); margin: 0 0 0.7rem 0; }
.celebrate-card p { color: var(--muted); }

/* ===== Lab card type tags + sectioning ===== */
.module-section-title {
  font-family: var(--mono); font-size: 0.78rem; color: var(--muted);
  letter-spacing: 0.08em; margin: 1rem 0 0.5rem 0;
}
.module-section-title.handson { color: var(--accent-2); }
.lab-card .lab-type {
  font-family: var(--mono); font-size: 0.68rem; color: var(--muted);
  letter-spacing: 0.08em; padding: 0.1rem 0.35rem;
  border: 1px solid var(--border); border-radius: 3px; margin-left: 0.4rem;
}
.lab-card .lab-type.handson { color: var(--accent-2); border-color: rgba(125,255,177,0.3); }
.lab-card .lab-type.primer { color: var(--info); border-color: rgba(110,193,255,0.3); }

/* ===== Interactive widget host ===== */
.interactive {
  margin-top: 0; background: var(--panel);
  border: 1px solid var(--border); border-radius: 6px; padding: 1rem 1.2rem;
  margin-bottom: 1.3rem;
}
.interactive h3 {
  margin: 0 0 0.7rem 0; font-family: var(--mono); font-size: 0.85rem;
  color: var(--accent-2); letter-spacing: 0.07em; text-transform: uppercase;
}
.widget-prompt {
  font-size: 0.95rem; line-height: 1.55; margin: 0 0 0.9rem 0; color: var(--text);
}
.widget-actions {
  display: flex; gap: 0.6rem; margin-top: 0.9rem;
}
.widget-actions .ghost-btn.check {
  border-color: rgba(125,255,177,0.4); color: var(--accent-2);
}
.widget-actions .ghost-btn.check:hover {
  border-color: var(--accent-2); color: #000; background: var(--accent-2);
}
.widget-status {
  margin-top: 0.7rem; font-family: var(--mono); font-size: 0.85rem;
  min-height: 1em;
}
.widget-status.warn { color: var(--warn); }
.widget-status.danger { color: var(--danger); }
.widget-status.ok { color: var(--accent-2); }
.god-banner {
  margin-bottom: 0.7rem; padding: 0.4rem 0.6rem;
  background: rgba(255,209,102,0.08); border-left: 2px solid var(--gold);
  font-family: var(--mono); font-size: 0.8rem; color: var(--gold); border-radius: 0 3px 3px 0;
}

/* === classify === */
.classify {
  display: grid; grid-template-columns: 1fr 1.2fr; gap: 0.9rem;
}
@media (max-width: 760px) { .classify { grid-template-columns: 1fr; } }
.classify-pool, .classify-bucket {
  background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 4px; padding: 0.6rem 0.7rem; min-height: 80px;
}
.classify-pool-head, .classify-bucket-head {
  font-family: var(--mono); font-size: 0.75rem; color: var(--muted);
  letter-spacing: 0.05em; margin-bottom: 0.5rem;
}
.classify-bucket-head { color: var(--accent); }
.classify-bucket { transition: background 0.15s; cursor: pointer; }
.classify-bucket:hover { background: rgba(0,212,255,0.04); }
.classify-buckets {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem; align-content: start;
}
@media (max-width: 600px) { .classify-buckets { grid-template-columns: 1fr; } }
.classify-items, .classify-bucket-body {
  display: flex; flex-wrap: wrap; gap: 0.4rem; min-height: 40px;
}
.classify-chip {
  background: var(--bg); border: 1px solid var(--border);
  color: var(--text); padding: 0.35rem 0.6rem; border-radius: 16px;
  font-size: 0.85rem; cursor: pointer; transition: all 0.12s;
}
.classify-chip:hover { border-color: var(--accent); }
.classify-chip.selected {
  border-color: var(--accent); background: rgba(0,212,255,0.1);
  box-shadow: 0 0 6px rgba(0,212,255,0.2);
}
.classify-chip.placed { border-color: var(--accent-2); background: rgba(125,255,177,0.06); }

/* === sortable === */
.sortable { list-style: none; padding: 0; margin: 0; }
.sortable-row {
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.5rem 0.7rem; background: var(--panel-2);
  border: 1px solid var(--border); border-radius: 4px; margin-bottom: 0.4rem;
}
.sortable-rank {
  font-family: var(--mono); color: var(--accent); font-weight: 700;
  width: 1.6rem; text-align: center;
}
.sortable-text { flex: 1; font-size: 0.92rem; }
.sortable-ctrls { display: flex; gap: 0.3rem; }
.sortable-ctrls .ghost-btn { padding: 0.15rem 0.4rem; }

/* === checklist === */
.checklist { display: flex; flex-direction: column; gap: 0.35rem; }
.checklist-row {
  display: flex; align-items: flex-start; gap: 0.6rem;
  padding: 0.45rem 0.6rem; background: var(--panel-2);
  border: 1px solid var(--border); border-radius: 3px;
  cursor: pointer; transition: all 0.12s;
  font-size: 0.9rem; line-height: 1.45;
}
.checklist-row:hover { border-color: var(--accent); }
.checklist-row.selected { background: rgba(0,212,255,0.05); border-color: rgba(0,212,255,0.4); }
.checklist-row input { margin-top: 0.2rem; cursor: pointer; }

/* === decision tree === */
.dtree-tag {
  font-family: var(--mono); font-size: 0.72rem; color: var(--muted);
  letter-spacing: 0.06em; margin-bottom: 0.3rem;
}
.dtree-q {
  background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 4px; padding: 0.7rem 0.9rem;
}
.dtree-q p { margin: 0 0 0.7rem 0; line-height: 1.55; }
.dtree-opts { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.dtree-opt {
  background: var(--bg); border: 1px solid var(--border);
  color: var(--text); padding: 0.45rem 0.8rem; border-radius: 3px;
  cursor: pointer; font-family: var(--mono); font-size: 0.85rem;
  transition: all 0.12s;
}
.dtree-opt:hover { border-color: var(--accent); color: var(--accent); }
.dtree-path {
  list-style: none; padding: 0; margin: 0 0 0.7rem 0;
  font-family: var(--mono); font-size: 0.78rem; color: var(--muted);
}
.dtree-path li { padding: 0.15rem 0; }
.dtree-path li strong { color: var(--accent); }
.dtree-q-mini { color: var(--muted); }
.dtree-terminal {
  background: var(--panel-2); border: 1px solid var(--border);
  border-left-width: 3px; border-radius: 0 4px 4px 0;
  padding: 0.7rem 0.9rem;
}
.dtree-terminal.ok { border-left-color: var(--accent-2); }
.dtree-terminal.danger { border-left-color: var(--danger); }
.dtree-result {
  font-family: var(--mono); font-size: 1.05rem; font-weight: 700;
  letter-spacing: 0.04em;
}
.dtree-terminal.ok .dtree-result { color: var(--accent-2); }
.dtree-terminal.danger .dtree-result { color: var(--danger); }

/* === sliders === */
.sliders { display: flex; flex-direction: column; gap: 0.7rem; }
.slider-row {
  display: grid; grid-template-columns: 1fr 2fr 5rem; gap: 0.7rem;
  align-items: center;
}
.slider-row label { font-size: 0.9rem; color: var(--text); }
.slider-row input[type="range"] {
  width: 100%; accent-color: var(--accent);
}
.slider-val {
  font-family: var(--mono); font-size: 0.9rem; color: var(--accent); text-align: right;
}
.slider-readout {
  margin-top: 0.8rem; padding: 0.6rem 0.8rem;
  background: var(--bg); border: 1px dashed var(--border); border-radius: 3px;
  font-family: var(--mono); font-size: 0.92rem; color: var(--accent-2);
}

/* === annotator === */
.annotator-passage {
  background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 4px; padding: 0.9rem 1.1rem; line-height: 1.7;
  font-size: 0.95rem; white-space: pre-wrap;
}
.anno-span {
  background: rgba(255,255,255,0.04); border: 1px dashed var(--border);
  color: var(--text); padding: 0.05rem 0.35rem; border-radius: 3px;
  cursor: pointer; font: inherit; transition: all 0.12s;
}
.anno-span:hover { border-color: var(--accent); color: var(--accent); }
.anno-span.selected {
  background: rgba(255,209,102,0.18); border-color: var(--gold); color: var(--gold);
  border-style: solid;
}

/* === policy builder === */
.policy { display: flex; flex-direction: column; gap: 0.8rem; }
.policy-row {
  display: flex; flex-direction: column; gap: 0.3rem;
  padding: 0.5rem 0.6rem; background: var(--panel-2);
  border: 1px solid var(--border); border-radius: 3px;
}
.policy-row label { font-family: var(--mono); font-size: 0.82rem; color: var(--accent); }
.policy-row select, .policy-row input[type="text"] {
  background: var(--bg); border: 1px solid var(--border);
  color: var(--text); padding: 0.4rem 0.6rem; border-radius: 3px;
  font-family: var(--mono); font-size: 0.88rem;
}
.policy-row select:focus, .policy-row input:focus { outline: none; border-color: var(--accent); }
.policy-multi { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.policy-multi-opt {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.25rem 0.55rem; border: 1px solid var(--border); border-radius: 3px;
  font-size: 0.85rem; cursor: pointer;
}
.policy-multi-opt:hover { border-color: var(--accent); }
.policy-hint { font-family: var(--mono); font-size: 0.75rem; color: var(--muted); }

/* === lab terminal widget === */
.lab-terminal {
  background: #06090d; border: 1px solid var(--border); border-radius: 4px;
  margin: 0.4rem 0;
}
.lab-term-head {
  background: var(--panel); border-bottom: 1px solid var(--border);
  padding: 0.4rem 0.6rem; display: flex; align-items: center; gap: 0.6rem;
  font-family: var(--mono); font-size: 0.78rem; color: var(--muted);
}
.lab-term-head .dotsbar { display: inline-flex; gap: 0.3rem; }
.lab-term-head .dotsbar i {
  width: 10px; height: 10px; border-radius: 50%; background: #333;
}
.lab-term-head .dotsbar i:nth-child(1) { background: #ff5f56; }
.lab-term-head .dotsbar i:nth-child(2) { background: #ffbd2e; }
.lab-term-head .dotsbar i:nth-child(3) { background: #27c93f; }
.lab-term-body {
  font-family: var(--mono); font-size: 0.85rem; color: var(--text);
  padding: 0.6rem 0.8rem; max-height: 300px; overflow-y: auto;
  white-space: pre-wrap; word-break: break-word;
}
.lab-term-line { padding: 0.04rem 0; }
.lab-term-line.cmd { color: var(--text); }
.lab-term-line.banner { color: var(--info); margin-bottom: 0.3rem; }
.lab-term-line.warn { color: var(--warn); }
.lab-term-line.danger { color: var(--danger); }
.lab-term-line.ok { color: var(--accent-2); }
.lab-term-prompt-line { color: var(--accent); }
.lab-term-input-row {
  display: flex; padding: 0.3rem 0.6rem 0.6rem 0.6rem; gap: 0.3rem;
  border-top: 1px solid var(--border-soft); background: #06090d;
}
.lab-term-prompt {
  font-family: var(--mono); font-size: 0.85rem; color: var(--accent);
}
.lab-term-input-row input {
  flex: 1; background: transparent; border: none; color: var(--text);
  font-family: var(--mono); font-size: 0.85rem; outline: none;
}
.terminal-hint {
  margin-top: 0.5rem; padding: 0.45rem 0.6rem;
  background: rgba(110,193,255,0.06); border-left: 2px solid var(--info);
  font-family: var(--mono); font-size: 0.82rem; color: var(--info);
  border-radius: 0 3px 3px 0;
}

/* ===== Landing 3-card grid ===== */
.mode-grid.three { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 980px) { .mode-grid.three { grid-template-columns: 1fr; } }

.mode-card.exam:hover { border-color: var(--accent-2); }
.mode-card.exam h2 { color: var(--accent-2); }
.mode-card.exam .mode-cta { color: var(--accent-2); }

/* ===== Exam page ===== */
.exam-body { overflow: auto; }
.exam-body.no-select, .exam-body.no-select * {
  -webkit-user-select: none; -moz-user-select: none; -ms-user-select: none; user-select: none;
}
.exam-body.no-select { cursor: default; }

.exam-timer {
  font-family: var(--mono); font-size: 0.95rem; color: var(--gold);
  padding: 0.2rem 0.6rem; border: 1px solid rgba(255,209,102,0.4); border-radius: 3px;
  letter-spacing: 0.06em; min-width: 5.4rem; text-align: center;
}
.exam-progress {
  font-family: var(--mono); font-size: 0.82rem; color: var(--muted);
  letter-spacing: 0.04em;
}

.exam-main {
  max-width: 880px; margin: 0 auto; padding: 1.6rem 1.4rem 3rem;
}
.exam-card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 6px; padding: 1.5rem 1.7rem;
}
.exam-card h1 { margin: 0 0 0.5rem 0; font-size: 1.5rem; }
.exam-card p { line-height: 1.6; color: var(--text); }
.exam-rules {
  margin: 0.6rem 0 1.2rem 0; padding-left: 1.2rem;
  color: var(--muted); line-height: 1.7;
}
.exam-rules strong { color: var(--text); }
.exam-actions {
  display: flex; gap: 0.6rem; margin-top: 1.2rem;
}
.exam-actions .ghost-btn.check {
  border-color: rgba(125,255,177,0.5); color: var(--accent-2);
}
.exam-actions .ghost-btn.check:hover { background: var(--accent-2); color: #000; border-color: var(--accent-2); }
.exam-actions .ghost-btn.submit {
  border-color: var(--gold); color: var(--gold);
}
.exam-actions .ghost-btn.submit:hover { background: var(--gold); color: #000; }

/* Question screen */
.question-head {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 0.6rem; padding-bottom: 0.6rem; border-bottom: 1px dashed var(--border);
}
.question-num {
  font-family: var(--mono); color: var(--accent); font-size: 0.95rem; letter-spacing: 0.04em;
}
.question-topic {
  font-family: var(--mono); color: var(--muted); font-size: 0.78rem; letter-spacing: 0.06em;
}
.question-body {
  line-height: 1.65; margin: 0.8rem 0 1.1rem; font-size: 1.0rem; color: var(--text);
}
.question-options {
  display: flex; flex-direction: column; gap: 0.5rem;
}
.exam-option {
  display: grid; grid-template-columns: 24px 1.5rem 1fr; gap: 0.7rem; align-items: start;
  padding: 0.65rem 0.85rem; background: var(--panel-2);
  border: 1px solid var(--border); border-radius: 4px;
  cursor: pointer; transition: all 0.12s ease;
  line-height: 1.55; font-size: 0.95rem;
}
.exam-option:hover { border-color: var(--accent); }
.exam-option.selected {
  background: rgba(0,212,255,0.06); border-color: rgba(0,212,255,0.5);
  box-shadow: inset 0 0 0 1px rgba(0,212,255,0.2);
}
.exam-option input { margin-top: 0.25rem; cursor: pointer; }
.opt-letter {
  font-family: var(--mono); color: var(--accent); font-weight: 700;
}
.opt-text { color: var(--text); }

.question-nav {
  display: flex; align-items: center; gap: 0.6rem;
  margin-top: 1.2rem; padding-top: 1rem; border-top: 1px dashed var(--border);
}
.question-jump {
  margin-left: auto; margin-right: auto;
  font-family: var(--mono); color: var(--muted); font-size: 0.82rem;
}
.question-nav .ghost-btn { min-width: 6rem; }
.question-nav .ghost-btn.check {
  border-color: rgba(125,255,177,0.5); color: var(--accent-2);
}
.question-nav .ghost-btn.check:hover { background: var(--accent-2); color: #000; border-color: var(--accent-2); }
.question-nav .ghost-btn.submit {
  border-color: var(--gold); color: var(--gold);
}
.question-nav .ghost-btn.submit:hover { background: var(--gold); color: #000; }

/* Result screen */
.result-banner {
  margin: -0.5rem 0 1rem; padding: 0.6rem 0.9rem;
  font-family: var(--mono); border-radius: 3px;
  font-size: 0.95rem; letter-spacing: 0.02em;
}
.result-banner.pass {
  background: rgba(125,255,177,0.08); color: var(--accent-2);
  border-left: 2px solid var(--accent-2);
}
.result-banner.fail {
  background: rgba(255,77,109,0.08); color: var(--danger);
  border-left: 2px solid var(--danger);
}
.result-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.7rem;
  margin: 1rem 0 0.8rem;
}
@media (max-width: 720px) { .result-grid { grid-template-columns: 1fr 1fr; } }
.result-stat {
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 4px;
  padding: 0.7rem 0.8rem; text-align: center;
}
.result-label {
  font-family: var(--mono); font-size: 0.7rem; color: var(--muted);
  letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 0.3rem;
}
.result-value {
  font-family: var(--mono); font-size: 1.2rem; font-weight: 700;
  color: var(--accent);
}
.result-value.pass { color: var(--accent-2); }
.result-value.fail { color: var(--danger); }
.result-note {
  margin: 0.9rem 0 0 0; padding: 0.6rem 0.8rem;
  background: rgba(255,255,255,0.02); border: 1px dashed var(--border);
  border-radius: 3px; color: var(--muted); font-size: 0.88rem;
}

/* Set picker grid on exam pre-screen */
.set-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0.9rem;
  margin: 1.4rem 0 1rem;
}
.set-grid.three { grid-template-columns: repeat(3, 1fr); }
.set-grid.four { grid-template-columns: repeat(4, 1fr); }
.set-grid.six { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 980px) {
  .set-grid.four, .set-grid.six { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .set-grid, .set-grid.three, .set-grid.four, .set-grid.six { grid-template-columns: 1fr; }
}
.set-card { position: relative; flex-direction: column; gap: 0.5rem; }
.set-lock {
  font-size: 0.95rem; color: var(--gold); font-family: var(--mono);
  letter-spacing: 0.06em;
}
.set-lock.unlocked { color: var(--accent-2); }
.set-card {
  display: flex; align-items: center; justify-content: center;
  padding: 1.6rem 1.2rem; background: var(--panel-2);
  border: 1px solid var(--border); border-radius: 5px;
  transition: border-color 0.15s ease, transform 0.12s ease, background 0.15s ease;
  cursor: pointer; font-family: var(--sans); color: var(--text);
}
.set-card:hover {
  border-color: var(--accent-2); transform: translateY(-1px);
  background: rgba(125,255,177,0.05);
}
.set-card h2 {
  margin: 0; font-size: 1.4rem; color: var(--accent-2);
  font-family: var(--mono); letter-spacing: 0.04em;
}