/* ===========================================================
   WEKID Exam Engine — Candidate UI
   Matches the dark, premium feel of the certs.html marketing page.
   =========================================================== */

:root {
  --bg-deep: #07111f;
  --bg-1: #0a1320;
  --bg-2: #0f1a2c;
  --line: rgba(255,255,255,0.10);
  --line-strong: rgba(255,255,255,0.18);
  --text: #f5f7fa;
  --muted: #aab2c4;
  --accent: #7dd3fc;       /* sky */
  --accent-2: #a78bfa;     /* purple */
  --good: #34d399;
  --bad: #fb7185;
  --warn: #fbbf24;
  --shadow: 0 24px 48px -16px rgba(0,0,0,0.6);
  --radius: 18px;
  --serif: 'Fraunces', 'Times New Roman', serif;
  --sans: 'Inter', system-ui, -apple-system, sans-serif;
  --mono: 'JetBrains Mono', 'Menlo', monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  font-family: var(--sans);
  color: var(--text);
  background: var(--bg-deep);
  background-image:
    radial-gradient(1100px 600px at 12% -10%, rgba(125,211,252,0.10), transparent 60%),
    radial-gradient(900px 500px at 100% 100%, rgba(167,139,250,0.10), transparent 60%);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
.exam-header {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  background: rgba(7,17,31,0.85);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 50;
}
.exam-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand { display: flex; align-items: baseline; gap: 14px; text-decoration: none; color: var(--text); }
.brand-mark {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 0.02em;
}
.brand-mark sup { font-size: 0.5em; opacity: 0.7; }
.brand-sub {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}
.header-meta {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--muted);
  display: flex;
  gap: 18px;
  align-items: center;
}

/* ---------- Main ---------- */
.exam-main { padding: 56px 0 88px; }

/* ---------- Eyebrow / titles ---------- */
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.72rem;
  color: var(--accent);
  font-weight: 700;
  margin: 0 0 10px;
}
.display {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
}
h1, h2, h3 { font-family: var(--serif); font-weight: 500; line-height: 1.2; }
h2 { font-size: clamp(1.5rem, 2.4vw, 2rem); margin: 0 0 14px; }
h3 { font-size: 1.15rem; margin: 0 0 10px; }
.muted { color: var(--muted); }

.lede {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 64ch;
}

/* ---------- Cards / panels ---------- */
.panel {
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.03));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px;
  position: relative;
  overflow: hidden;
}
.panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(125,211,252,0.06), transparent 45%, rgba(167,139,250,0.06));
  pointer-events: none;
}
.panel > * { position: relative; z-index: 1; }

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 18px;
  margin-top: 22px;
}
.summary-item {
  padding: 16px 18px;
  border-radius: 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
  min-width: 0; /* let grid cells shrink so long values wrap instead of overflowing */
}
.summary-item .k {
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--muted);
  margin-bottom: 6px;
}
.summary-item .v {
  font-family: var(--serif);
  font-size: 1.15rem;
  color: var(--text);
  overflow-wrap: anywhere; /* break long unspaced strings (e.g. emails) */
  word-break: break-word;
}

/* ---------- Forms ---------- */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 22px;
}
label.field {
  display: block;
}
label.field span {
  display: block;
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}
input[type=text], input[type=email], input[type=password], select, textarea {
  width: 100%;
  font: inherit;
  font-size: 1rem;
  padding: 12px 14px;
  background: rgba(255,255,255,0.05);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 10px;
  transition: border-color 0.15s, background 0.15s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(125,211,252,0.06);
}
textarea { resize: vertical; min-height: 100px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s, border-color 0.15s;
}
.btn.primary {
  background: linear-gradient(135deg, #7dd3fc, #a78bfa);
  color: #0a1320;
  border: 0;
  box-shadow: 0 10px 24px -8px rgba(125,211,252,0.4);
}
.btn.primary:hover { transform: translateY(-1px); box-shadow: 0 14px 30px -10px rgba(125,211,252,0.5); }
.btn.ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line-strong);
}
.btn.ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn.danger { background: rgba(251,113,133,0.15); color: var(--bad); border-color: rgba(251,113,133,0.3); }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* ---------- Alerts ---------- */
.alert {
  padding: 14px 18px;
  border-radius: 12px;
  border: 1px solid var(--line);
  margin-bottom: 18px;
  font-size: 0.95rem;
  line-height: 1.5;
}
.alert.error  { background: rgba(251,113,133,0.10); border-color: rgba(251,113,133,0.35); color: #ffd6dc; }
.alert.success{ background: rgba(52,211,153,0.10);  border-color: rgba(52,211,153,0.35);  color: #c8f6e0; }
.alert.warn   { background: rgba(251,191,36,0.10);  border-color: rgba(251,191,36,0.35);  color: #ffe6a8; }

/* ---------- Exam runtime ---------- */
.exam-shell {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 28px;
  align-items: start;
}
@media (max-width: 920px) {
  .exam-shell { grid-template-columns: 1fr; }
}

.q-card {
  padding: 36px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.q-meta {
  display: flex;
  gap: 14px;
  align-items: center;
  margin-bottom: 18px;
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
}
.q-meta .pill {
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(125,211,252,0.12);
  border: 1px solid rgba(125,211,252,0.3);
  color: var(--accent);
  letter-spacing: 0.1em;
}
.q-stem {
  font-family: var(--serif);
  font-size: 1.35rem;
  line-height: 1.45;
  color: var(--text);
  margin: 0 0 26px;
}
.q-choice {
  display: block;
  padding: 16px 18px;
  border-radius: 12px;
  background: rgba(255,255,255,0.035);
  border: 1px solid var(--line);
  margin-bottom: 12px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, transform 0.1s;
}
.q-choice:hover { border-color: rgba(125,211,252,0.45); background: rgba(125,211,252,0.05); }
.q-choice.is-selected {
  border-color: var(--accent);
  background: rgba(125,211,252,0.10);
  box-shadow: inset 0 0 0 1px var(--accent);
}
.q-choice input { margin-right: 12px; accent-color: var(--accent); }
.q-choice .choice-body { font-size: 1rem; line-height: 1.5; }

/* ---------- Sidebar (timer + nav) ---------- */
.exam-side {
  position: sticky;
  top: 90px;
  display: grid;
  gap: 18px;
}
.timer-box {
  padding: 20px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
  border: 1px solid var(--line);
  text-align: center;
}
.timer-label {
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}
.timer-clock {
  font-family: var(--mono);
  font-size: 2rem;
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}
.timer-clock.is-warn  { color: var(--warn); }
.timer-clock.is-crit  { color: var(--bad); animation: pulse 1.2s ease-in-out infinite; }
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.qnav {
  padding: 18px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
  border: 1px solid var(--line);
}
.qnav-label {
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
}
.qnav-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 6px;
}
.qnav-btn {
  font-family: var(--mono);
  font-size: 0.78rem;
  padding: 8px 0;
  border-radius: 8px;
  background: rgba(255,255,255,0.04);
  color: var(--text);
  border: 1px solid var(--line);
  cursor: pointer;
  text-decoration: none;
  text-align: center;
}
.qnav-btn.is-current { background: rgba(125,211,252,0.15); border-color: var(--accent); color: var(--accent); }
.qnav-btn.is-answered { background: rgba(52,211,153,0.10); border-color: rgba(52,211,153,0.4); color: var(--good); }
.qnav-btn.is-current.is-answered { background: rgba(125,211,252,0.20); border-color: var(--accent); color: var(--accent); }

.exam-footnav {
  display: flex;
  justify-content: space-between;
  margin-top: 24px;
  gap: 12px;
}

/* ---------- Result page ---------- */
.result-hero {
  text-align: center;
  padding: 48px 32px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
  margin-bottom: 32px;
}
.result-hero.passed { border-color: rgba(52,211,153,0.35); background: linear-gradient(180deg, rgba(52,211,153,0.10), rgba(52,211,153,0.02)); }
.result-hero.failed { border-color: rgba(251,113,133,0.35); background: linear-gradient(180deg, rgba(251,113,133,0.10), rgba(251,113,133,0.02)); }
.result-hero .score {
  font-family: var(--serif);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 500;
  line-height: 1;
  margin: 18px 0;
}
.result-hero .verdict {
  font-size: 0.78rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
}
.result-hero.passed .verdict { color: var(--good); }
.result-hero.failed .verdict { color: var(--bad); }

/* ---------- Verify page ---------- */
.verify-shell {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}
.verify-card {
  padding: 40px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
  border: 1px solid var(--line);
  text-align: left;
}
.verify-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 18px;
  margin-top: 22px;
}

/* ---------- Footer ---------- */
.exam-footer {
  padding: 28px 0 36px;
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--muted);
}
.exam-footer .container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Lockdown / focus warning overlay ---------- */
.focus-overlay {
  position: fixed; inset: 0;
  background: rgba(7,17,31,0.92);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 24px;
}
.focus-overlay.is-open { display: flex; }
.focus-overlay .panel { max-width: 520px; text-align: center; }
.focus-overlay h2 { color: var(--warn); }

/* ============================================================
   Open-text scenario question (rubric-graded)
   ============================================================ */
.rubric-hint {
    background: rgba(167, 139, 250, 0.06);
    border: 1px solid rgba(167, 139, 250, 0.25);
    border-radius: 8px;
    padding: 12px 16px;
    margin: 0 0 18px;
    font-size: 0.85rem;
}
.rubric-hint-label {
    color: var(--accent-2);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin: 0 0 6px;
}
.rubric-list {
    margin: 0;
    padding: 0;
    list-style: none;
}
.rubric-list li {
    padding: 4px 0 4px 16px;
    position: relative;
    line-height: 1.5;
}
.rubric-list li::before {
    content: '';
    position: absolute;
    left: 4px;
    top: 12px;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--accent-2);
}
.open-textarea {
    width: 100%;
    min-height: 320px;
    padding: 16px;
    background: var(--bg-elevated, #0a1828);
    border: 1px solid var(--border, #1c2940);
    border-radius: 8px;
    color: var(--text, #e6edf6);
    font-family: var(--font-body), 'Inter', sans-serif;
    font-size: 0.95rem;
    line-height: 1.6;
    resize: vertical;
    box-sizing: border-box;
}
.open-textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(125, 211, 252, 0.15);
}
.open-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    margin: 10px 4px 0;
    font-size: 0.78rem;
    color: var(--muted, #8a9ab8);
}
.open-meta .wc-ok { color: var(--good, #34d399); }
.open-meta .wc-low { color: var(--warn, #fbbf24); }
.open-meta .wc-over { color: var(--bad, #fb7185); }

/* ============================================================
   Awaiting-grading state on result page
   ============================================================ */
.awaiting-hero {
    text-align: center;
    padding: 32px 24px;
}
.awaiting-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    border-radius: 50%;
    background: rgba(167, 139, 250, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-2);
    font-size: 28px;
}
.awaiting-checklist {
    text-align: left;
    max-width: 460px;
    margin: 24px auto 0;
}
.awaiting-checklist .item {
    display: flex;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}
.awaiting-checklist .item .check {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    border-radius: 50%;
    background: rgba(52, 211, 153, 0.15);
    color: var(--good, #34d399);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
}
.awaiting-checklist .item.pending .check {
    background: rgba(167, 139, 250, 0.15);
    color: var(--accent-2);
}