/* Kedil Evaluation Portal — shared styles */
:root {
  --bg: #f4f6fa;
  --surface: #ffffff;
  --ink: #1c2430;
  --muted: #5c6b80;
  --line: #dde4ee;
  --accent: #0f5f6e;
  --accent-dark: #0b4a56;
  --accent-soft: #e3f0f2;
  --good: #1d7a3f;
  --good-soft: #e4f3e9;
  --warn: #a05a00;
  --warn-soft: #fdf1de;
  --bad: #b02a2a;
  --bad-soft: #fbe7e7;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(16, 30, 54, 0.08), 0 4px 14px rgba(16, 30, 54, 0.06);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

.hidden { display: none !important; }

/* ---- top bar ---- */
.topbar {
  background: var(--accent-dark);
  color: #fff;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.topbar .brand { font-weight: 700; font-size: 1.05rem; letter-spacing: 0.2px; }
.topbar .brand small { display: block; font-weight: 400; opacity: 0.75; font-size: 0.75rem; }
.topbar .who { font-size: 0.85rem; opacity: 0.9; display: flex; align-items: center; gap: 10px; }

/* ---- layout ---- */
.wrap { max-width: 960px; margin: 0 auto; padding: 28px 20px 60px; }
.wrap-wide { max-width: 1200px; }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
}

h1 { font-size: 1.5rem; margin: 0 0 6px; }
h2 { font-size: 1.15rem; margin: 0 0 10px; }
p.lead { color: var(--muted); margin-top: 0; }

/* ---- buttons ---- */
.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 10px 18px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s;
}
.btn:hover { background: var(--accent-dark); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-ghost {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}
.btn-ghost:hover { background: var(--accent-soft); }
.btn-danger { background: var(--bad); }
.btn-danger:hover { background: #8f2020; }
.btn-sm { padding: 6px 12px; font-size: 0.85rem; }
.btn-link {
  background: none; border: none; color: var(--accent);
  cursor: pointer; font-size: 0.9rem; text-decoration: underline; padding: 0;
}

/* ---- forms ---- */
label { display: block; font-size: 0.85rem; font-weight: 600; margin: 12px 0 4px; color: var(--muted); }
input[type="text"], input[type="email"], input[type="password"], input[type="number"], textarea, select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  background: #fff;
  color: var(--ink);
}
input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

.msg { margin-top: 12px; font-size: 0.9rem; padding: 10px 12px; border-radius: 8px; }
.msg-err { background: var(--bad-soft); color: var(--bad); }
.msg-ok { background: var(--good-soft); color: var(--good); }
.msg-info { background: var(--accent-soft); color: var(--accent-dark); }

/* ---- auth card ---- */
.auth-card { max-width: 420px; margin: 48px auto; }
.auth-tabs { display: flex; border-bottom: 1px solid var(--line); margin-bottom: 16px; }
.auth-tabs button {
  flex: 1; background: none; border: none; padding: 10px;
  font-size: 0.95rem; font-weight: 600; color: var(--muted); cursor: pointer;
  border-bottom: 2px solid transparent;
}
.auth-tabs button.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ---- tiles (hub + levels) ---- */
.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 18px; margin-top: 20px; }
.tile {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  text-decoration: none;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: transform 0.12s, box-shadow 0.12s;
}
a.tile:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(16,30,54,0.12); }
.tile h3 { margin: 0; font-size: 1.05rem; }
.tile .sub { color: var(--muted); font-size: 0.85rem; }
.tile.disabled { opacity: 0.55; }
.badge {
  display: inline-block; font-size: 0.72rem; font-weight: 700;
  padding: 2px 9px; border-radius: 999px; letter-spacing: 0.3px;
  background: var(--accent-soft); color: var(--accent-dark);
  align-self: flex-start;
}
.badge-warn { background: var(--warn-soft); color: var(--warn); }
.badge-good { background: var(--good-soft); color: var(--good); }
.badge-bad { background: var(--bad-soft); color: var(--bad); }
.badge-muted { background: #eceff5; color: var(--muted); }

/* ---- exam layout ---- */
.exam-bar {
  position: sticky; top: 0; z-index: 10;
  background: var(--accent-dark); color: #fff;
  padding: 10px 16px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}
.exam-bar .timer {
  font-variant-numeric: tabular-nums;
  font-weight: 700; font-size: 1.15rem;
  background: rgba(255,255,255,0.12);
  padding: 4px 14px; border-radius: 8px;
}
.exam-bar .timer.low { background: var(--bad); }
.exam-bar .save-state { font-size: 0.8rem; opacity: 0.85; }

.exam-body { display: flex; gap: 20px; max-width: 1200px; margin: 20px auto; padding: 0 16px; align-items: flex-start; }
.palette {
  width: 230px; flex-shrink: 0;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 14px;
  position: sticky; top: 66px;
  max-height: calc(100vh - 90px); overflow-y: auto;
}
.palette h4 { margin: 10px 0 6px; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.5px; color: var(--muted); }
.palette h4:first-child { margin-top: 0; }
.palette .nums { display: flex; flex-wrap: wrap; gap: 5px; }
.palette .nums button {
  width: 34px; height: 30px; border: 1px solid var(--line); border-radius: 6px;
  background: #fff; cursor: pointer; font-size: 0.8rem; color: var(--ink);
}
.palette .nums button.answered { background: var(--good-soft); border-color: var(--good); color: var(--good); font-weight: 700; }
.palette .nums button.current { outline: 2px solid var(--accent); }

.q-area { flex: 1; min-width: 0; }
.q-module { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; color: var(--accent); margin-bottom: 6px; }
.q-text { font-size: 1.05rem; font-weight: 600; margin-bottom: 16px; white-space: pre-wrap; }
/* topic selection */
.topic-row {
  display: flex; align-items: center; gap: 10px;
  border: 1px solid var(--line); border-radius: 8px;
  padding: 10px 12px; margin-bottom: 8px; cursor: pointer;
  font-size: 0.95rem; background: #fff;
}
.topic-row:hover { border-color: var(--accent); }
.topic-row input { width: auto; }
.topic-row .topic-name { flex: 1; font-weight: 600; }
.topic-row .topic-count { color: var(--muted); font-size: 0.85rem; white-space: nowrap; }
.topic-row.off { opacity: 0.55; }

.q-image { margin-bottom: 16px; }
.q-image img {
  max-width: 320px; max-height: 260px; width: auto; height: auto;
  border: 1px solid var(--line); border-radius: 8px; background: #fff; padding: 8px;
}

.opt {
  display: flex; gap: 10px; align-items: flex-start;
  border: 1px solid var(--line); border-radius: 8px;
  padding: 12px 14px; margin-bottom: 10px; cursor: pointer;
  background: #fff; transition: border-color 0.1s, background 0.1s;
}
.opt:hover { border-color: var(--accent); }
.opt.selected { border-color: var(--accent); background: var(--accent-soft); }
.opt input { margin-top: 4px; }
.opt .letter { font-weight: 700; color: var(--accent); }

.code-editor {
  width: 100%; min-height: 340px;
  font-family: "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 0.88rem; line-height: 1.5;
  background: #10171f; color: #dbe4ef;
  border: 1px solid #2a3644; border-radius: 8px;
  padding: 14px; resize: vertical;
  tab-size: 4; -moz-tab-size: 4;
  white-space: pre; overflow-x: auto;
}
.code-editor:focus { outline: 2px solid var(--accent); }
.code-hint { font-size: 0.8rem; color: var(--muted); margin-top: 6px; }

.q-nav { display: flex; justify-content: space-between; margin-top: 18px; gap: 10px; }

/* ---- tables (admin) ---- */
table.grid { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
table.grid th, table.grid td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); }
table.grid th { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.5px; color: var(--muted); }
table.grid tr.clickable { cursor: pointer; }
table.grid tr.clickable:hover { background: var(--accent-soft); }

pre.code-view {
  background: #10171f; color: #dbe4ef;
  font-family: "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.85rem; line-height: 1.5;
  border-radius: 8px; padding: 14px; overflow-x: auto;
  white-space: pre-wrap; word-break: break-word;
  max-height: 480px; overflow-y: auto;
}

.tabs { display: flex; gap: 6px; margin-bottom: 18px; border-bottom: 1px solid var(--line); }
.tabs button {
  background: none; border: none; padding: 10px 16px; cursor: pointer;
  font-size: 0.95rem; font-weight: 600; color: var(--muted);
  border-bottom: 2px solid transparent;
}
.tabs button.active { color: var(--accent); border-bottom-color: var(--accent); }

.center-note { text-align: center; padding: 60px 20px; color: var(--muted); }
.center-note .big { font-size: 2.4rem; margin-bottom: 10px; }

footer.foot { text-align: center; color: var(--muted); font-size: 0.8rem; padding: 30px 0; }
footer.foot a { color: var(--muted); }

@media (max-width: 800px) {
  .exam-body { flex-direction: column; }
  .palette { width: 100%; position: static; max-height: none; }
}