/* ============================================================
   Techland Assessment Portal — Stylesheet
   Corporate palette: navy #0B3D91  accent #E03C31  band #1BA0D7
   ============================================================ */

:root {
  --navy:    #0B3D91;
  --navy-dk: #06294F;
  --accent:  #E03C31;
  --band:    #1BA0D7;
  --light:   #F1F4F8;
  --shade:   #D5E8F0;
  --border:  #BFC9D4;
  --text:    #1F2A38;
  --muted:   #5A6B7C;
  --green:   #27AE60;
  --amber:   #F39C12;
  --red:     #E74C3C;
  --white:   #FFFFFF;
  --shadow:  0 2px 8px rgba(11,61,145,0.08);
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 15px;
  color: var(--text);
  background: var(--light);
  line-height: 1.5;
}

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

/* ---------- Header band ---------- */
.tls-header {
  background: var(--navy);
  color: var(--white);
  padding: 14px 24px;
  border-bottom: 4px solid var(--band);
}
.tls-header .brand {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.3px;
}
.tls-header .tagline {
  font-size: 12px;
  opacity: 0.85;
  margin-top: 2px;
}
.tls-header .role {
  float: right;
  font-size: 13px;
  opacity: 0.9;
  margin-top: 4px;
}

/* ---------- Layout containers ---------- */
.tls-wrap { max-width: 980px; margin: 32px auto; padding: 0 16px; }
.tls-narrow { max-width: 640px; margin: 32px auto; padding: 0 16px; }

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: var(--shadow);
  padding: 28px;
  margin-bottom: 20px;
}
.card h1 {
  margin: 0 0 8px;
  color: var(--navy);
  font-size: 22px;
  border-bottom: 2px solid var(--navy);
  padding-bottom: 8px;
}
.card h2 {
  margin: 24px 0 10px;
  color: var(--navy);
  font-size: 17px;
}

/* ---------- Forms ---------- */
.form-group { margin-bottom: 14px; }
label {
  display: block;
  font-weight: 600;
  font-size: 13px;
  color: var(--navy-dk);
  margin-bottom: 4px;
}
input[type="text"], input[type="email"], input[type="password"], input[type="tel"], select, textarea {
  width: 100%;
  padding: 9px 11px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 4px;
  transition: border-color 0.15s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--band);
  box-shadow: 0 0 0 2px rgba(27,160,215,0.2);
}
.help { font-size: 12px; color: var(--muted); margin-top: 2px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, transform 0.05s;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--navy); color: var(--white); }
.btn-primary:hover { background: var(--navy-dk); text-decoration: none; }
.btn-accent { background: var(--accent); color: var(--white); }
.btn-accent:hover { background: #b62f25; text-decoration: none; }
.btn-ghost {
  background: var(--white); color: var(--navy);
  border: 1px solid var(--navy);
}
.btn-ghost:hover { background: var(--light); text-decoration: none; }
.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---------- Alerts ---------- */
.alert {
  padding: 12px 16px;
  border-radius: 4px;
  border-left: 4px solid;
  margin-bottom: 16px;
  font-size: 14px;
}
.alert-info    { background: #EAF4FB; border-color: var(--band); }
.alert-success { background: #E9F7EF; border-color: var(--green); }
.alert-warn    { background: #FEF5E7; border-color: var(--amber); }
.alert-danger  { background: #FDEDEC; border-color: var(--red); color: #922b21; }

/* ---------- Rules box (instructions) ---------- */
.rules { background: var(--light); padding: 16px 20px; border-radius: 4px; border-left: 4px solid var(--navy); }
.rules ol { padding-left: 22px; margin: 8px 0; }
.rules li { margin-bottom: 6px; font-size: 14px; }

/* ---------- Tables ---------- */
table.tbl {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 13px;
}
table.tbl th, table.tbl td {
  border: 1px solid var(--border);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}
table.tbl th {
  background: var(--navy);
  color: var(--white);
  font-weight: 600;
}
table.tbl tr:nth-child(even) td { background: #FAFBFC; }
.right { text-align: right; }
.center { text-align: center; }

/* ---------- Score badges ---------- */
.badge {
  display: inline-block;
  padding: 3px 9px;
  font-size: 11px;
  font-weight: 700;
  border-radius: 10px;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.badge-green  { background: var(--green); }
.badge-amber  { background: var(--amber); }
.badge-red    { background: var(--red); }
.badge-navy   { background: var(--navy); }
.badge-grey   { background: var(--muted); }

/* ============================================================
   ASSESSMENT (candidate test interface)
   ============================================================ */
.exam-shell {
  min-height: 100vh;
  background: var(--light);
  padding: 0;
  margin: 0;
}
.exam-topbar {
  position: sticky; top: 0; z-index: 100;
  background: var(--navy);
  color: var(--white);
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 24px;
  border-bottom: 3px solid var(--band);
}
.exam-topbar .brand { font-weight: 700; font-size: 15px; }
.exam-topbar .candidate { font-size: 12px; opacity: 0.9; }
.exam-topbar .timer {
  background: var(--white); color: var(--navy);
  font-weight: 700; font-family: 'Courier New', monospace;
  padding: 6px 14px; border-radius: 4px;
  font-size: 18px; letter-spacing: 1px;
}
.exam-topbar .timer.warn  { background: var(--amber); color: var(--white); }
.exam-topbar .timer.crit  { background: var(--red);   color: var(--white); animation: pulse 1s infinite; }
@keyframes pulse { 50% { opacity: 0.6; } }

.exam-main {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 16px;
  max-width: 1180px;
  margin: 16px auto;
  padding: 0 16px;
}
.qnav {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px;
  position: sticky; top: 64px;
  max-height: calc(100vh - 80px);
  overflow-y: auto;
}
.qnav h3 { margin: 0 0 8px; font-size: 13px; color: var(--navy); }
.qnav-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 4px; }
.qnav-btn {
  border: 1px solid var(--border);
  background: var(--white);
  font-size: 12px; font-weight: 600;
  padding: 6px 0;
  cursor: pointer;
  border-radius: 3px;
  color: var(--text);
}
.qnav-btn.answered { background: var(--green); color: var(--white); border-color: var(--green); }
.qnav-btn.current  { outline: 2px solid var(--accent); }

.qpanel {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 28px 32px;
  min-height: 400px;
}
.qpanel .qmeta {
  font-size: 12px; color: var(--accent); font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.5px;
  margin-bottom: 4px;
}
.qpanel .qnum {
  font-size: 12px; color: var(--muted); font-weight: 600;
  margin-bottom: 14px;
}
.qpanel .stem {
  font-size: 16px; color: var(--text);
  margin: 0 0 22px;
  line-height: 1.55;
}
.option {
  display: block;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 12px 14px;
  margin-bottom: 8px;
  cursor: pointer;
  background: var(--white);
  user-select: none;
  transition: border-color 0.12s, background 0.12s;
}
.option:hover { border-color: var(--band); background: #FAFCFD; }
.option.selected { border-color: var(--navy); background: var(--shade); }
.option input[type="radio"] { margin-right: 10px; }
.option .ltr { display: inline-block; font-weight: 700; color: var(--navy); margin-right: 6px; }

.qfooter {
  display: flex; justify-content: space-between;
  margin-top: 22px; padding-top: 16px;
  border-top: 1px solid var(--border);
}

.proctor-overlay {
  position: fixed; inset: 0;
  background: rgba(255,255,255,0.96);
  display: none;
  z-index: 1000;
  align-items: center; justify-content: center;
}
.proctor-overlay.show { display: flex; }
.proctor-overlay .box {
  background: var(--white);
  border: 2px solid var(--red);
  border-radius: 6px;
  padding: 28px 36px;
  max-width: 460px;
  text-align: center;
  box-shadow: 0 6px 24px rgba(0,0,0,0.2);
}
.proctor-overlay .box h2 {
  color: var(--red);
  margin: 0 0 10px;
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .exam-main { grid-template-columns: 1fr; }
  .qnav { position: static; max-height: none; }
  .qnav-grid { grid-template-columns: repeat(8, 1fr); }
  .exam-topbar { flex-direction: column; gap: 6px; padding: 8px 12px; }
  .exam-topbar .timer { font-size: 16px; }
  .qpanel { padding: 18px; }
  .card { padding: 18px; }
}