/* Ascenvo Skills Practice Trainer — same precision-instrument design system as
   the PSR Daily Report Generator / Supervisor Documentation tools: navy/blue
   header, soft white panels, typographic titles, accent-blue controls.
   No frameworks, no external fonts — runs entirely off file://. */

:root {
  --navy: #0f2a43;
  --navy-2: #1b3a5b;
  --steel: #486581;
  --line: #d5dde7;
  --line-2: #e6ebf2;
  --bg: #e9edf3;
  --panel: #ffffff;
  --ink: #17222e;
  --muted: #61758a;
  --accent: #2160a6;
  --accent-deep: #174a84;
  --accent-tint: #edf3fa;
  --accent-soft: #e4eefa;
  --accent-soft-2: #d7e6f7;
  --good: #2f855a;
  --good-bg: #f0fbf4;
  --bad: #c53030;
  --bad-bg: #fff5f5;
  --warn: #b7791f;
  --warn-bg: #fffaf0;
  --neutral-bg: #f6f8fb;

  --shadow-1: 0 1px 2px rgba(15, 42, 67, 0.05);
  --shadow-2: 0 1px 3px rgba(15, 42, 67, 0.06), 0 4px 14px rgba(15, 42, 67, 0.06);
  --shadow-3: 0 2px 6px rgba(15, 42, 67, 0.08), 0 12px 32px rgba(15, 42, 67, 0.10);
  --ring: 0 0 0 3px rgba(33, 96, 166, 0.28);
  --radius: 10px;
  --radius-ctl: 8px;

  --font-display: "Segoe UI Variable Display", "Segoe UI", -apple-system, Roboto, Arial, sans-serif;
  --font-body: "Segoe UI Variable Text", "Segoe UI", -apple-system, Roboto, Arial, sans-serif;
  --font-mono: "Cascadia Mono", "Consolas", monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background:
    radial-gradient(1100px 400px at 85% -180px, rgba(33, 96, 166, 0.07), transparent 70%),
    var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ============================================================
   App header / footer
   ============================================================ */
header.app-header {
  background:
    radial-gradient(900px 220px at 12% -60px, rgba(91, 155, 217, 0.22), transparent 65%),
    linear-gradient(180deg, #13334f 0%, var(--navy) 100%);
  color: #fff;
  padding: 20px 26px 18px;
  display: flex;
  align-items: center;
  gap: 16px;
  border-bottom: 1px solid rgba(91, 155, 217, 0.35);
  box-shadow: var(--shadow-2);
  position: relative;
  z-index: 2;
  flex-wrap: wrap;
}
header.app-header .app-mark {
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(159, 179, 200, 0.4);
  border-radius: 10px;
  background: linear-gradient(180deg, rgba(37, 99, 168, 0.30), rgba(37, 99, 168, 0.12));
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.08);
}
header.app-header .app-mark svg { display: block; width: 22px; height: 22px; }
header.app-header .app-titles { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
header.app-header h1 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  margin: 0;
  letter-spacing: 0.1px;
  line-height: 1.15;
}
header.app-header .sub { font-size: 12.5px; color: #9fb3c8; letter-spacing: 0.3px; }
header.app-header .header-progress {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: #cddbea;
}
header.app-header .header-progress .hp-count { font-family: var(--font-mono); color: #fff; font-weight: 700; }

footer.app-footer {
  margin-top: 10px;
  padding: 16px 26px 26px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 11.5px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  max-width: 1180px;
  margin-left: auto;
  margin-right: auto;
}
footer.app-footer .foot-mark { width: 16px; height: 16px; flex: 0 0 auto; opacity: 0.6; }
footer.app-footer .foot-sep { color: var(--line); }
footer.app-footer .foot-line { flex-basis: 100%; }

/* ============================================================
   Disclaimer banner — must read as prominent, never buried.
   ============================================================ */
.disclaimer-banner {
  max-width: 1180px;
  margin: 18px auto 0;
  padding: 14px 20px;
  border: 1px solid #f2e3bd;
  background: var(--warn-bg);
  border-radius: var(--radius);
  color: #7a5416;
  font-size: 12.5px;
  line-height: 1.6;
  box-shadow: var(--shadow-1);
}
.disclaimer-banner strong { color: #5c3f10; }
.disclaimer-banner .dl-title {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  font-size: 11px;
  color: #8a5f1a;
  margin-bottom: 4px;
}

/* ============================================================
   Shell / layout
   ============================================================ */
.shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px 24px 8px;
}
.crumb {
  font-size: 12.5px;
  color: var(--muted);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.crumb button.link {
  font: inherit;
  color: var(--accent-deep);
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  font-weight: 650;
}
.crumb button.link:hover { text-decoration: underline; }
.crumb .sep { color: var(--line); }

/* ============================================================
   Panels — soft card, typographic title.
   ============================================================ */
.panel {
  background: var(--panel);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  margin-bottom: 20px;
  box-shadow: var(--shadow-2);
  overflow: hidden;
}
.panel > h2 {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 650;
  color: var(--navy);
  letter-spacing: 0.1px;
  margin: 0;
  padding: 16px 20px 4px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.panel-body { padding: 12px 20px 18px; }
.hint { font-size: 11.5px; color: var(--muted); }

/* ============================================================
   Skill picker grid (home view)
   ============================================================ */
.skill-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}
.skill-card {
  background: var(--panel);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  box-shadow: var(--shadow-2);
  padding: 16px 18px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  cursor: pointer;
  transition: border-color 0.12s ease, box-shadow 0.12s ease, transform 0.05s ease;
  text-align: left;
}
.skill-card:hover { border-color: var(--accent); box-shadow: var(--shadow-3); }
.skill-card:active { transform: translateY(1px); }
.skill-card:focus-visible { outline: none; box-shadow: var(--ring); }
.skill-card .sk-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.skill-card .sk-no {
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: linear-gradient(180deg, var(--accent-soft), var(--accent-soft-2));
  color: var(--accent-deep);
  font-size: 12px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: inset 0 0 0 1px rgba(33, 96, 166, 0.18);
}
.skill-card .sk-mode {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--steel);
  background: var(--neutral-bg);
  border: 1px solid var(--line-2);
  border-radius: 999px;
  padding: 2px 9px;
}
.skill-card h3 {
  font-family: var(--font-display);
  font-size: 15.5px;
  font-weight: 700;
  color: var(--navy);
  margin: 2px 0 0;
}
.skill-card .sk-blurb { font-size: 12.5px; color: var(--steel); line-height: 1.55; flex: 1 1 auto; }
.skill-card .sk-bottom { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: 4px; }
.sk-count { font-size: 11.5px; color: var(--muted); }
.sk-status {
  font-size: 11px;
  font-weight: 700;
  border-radius: 999px;
  padding: 3px 10px;
  white-space: nowrap;
}
.sk-status.status-new { color: var(--steel); background: var(--neutral-bg); border: 1px solid var(--line-2); }
.sk-status.status-progress { color: var(--warn); background: var(--warn-bg); border: 1px solid #f2e3bd; }
.sk-status.status-done { color: var(--good); background: var(--good-bg); border: 1px solid #c6ecd4; }

/* ============================================================
   Drill view chrome
   ============================================================ */
.drill-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.drill-head h2 { font-family: var(--font-display); font-size: 19px; color: var(--navy); margin: 0 0 4px; }
.drill-head .drill-blurb { font-size: 12.5px; color: var(--steel); max-width: 70ch; line-height: 1.55; }
.drill-progress { display: flex; align-items: center; gap: 6px; flex: 0 0 auto; }
.dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--line); border: 1px solid var(--line);
}
.dot.done { background: var(--accent); border-color: var(--accent-deep); }
.dot.current { background: #fff; border: 2px solid var(--accent); }

.item-nav { display: flex; justify-content: space-between; align-items: center; margin-top: 16px; gap: 8px; flex-wrap: wrap; }
.item-tag { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; color: var(--accent-deep); background: var(--accent-soft); border-radius: 999px; padding: 3px 10px; }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 650;
  color: #fff;
  background: linear-gradient(180deg, var(--accent), var(--accent-deep));
  border: 1px solid var(--accent-deep);
  border-radius: var(--radius-ctl);
  padding: 9px 18px;
  cursor: pointer;
  box-shadow: var(--shadow-1), inset 0 1px 0 rgba(255,255,255,0.14);
  transition: filter 0.12s ease, transform 0.05s ease;
}
.btn:hover { filter: brightness(1.06); }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: none; box-shadow: var(--ring); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; filter: none; }
.btn.secondary {
  color: var(--accent-deep);
  background: var(--accent-tint);
  border: 1px solid var(--accent-soft-2);
  box-shadow: none;
}
.btn.secondary:hover { background: var(--accent-soft); }
.btn.ghost {
  color: var(--steel);
  background: transparent;
  border: 1px solid var(--line);
  box-shadow: none;
}
.btn.ghost:hover { color: var(--accent-deep); background: var(--accent-tint); }
.btn.tiny { font-size: 12px; padding: 5px 10px; }
.btn-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 10px; }

/* ============================================================
   Fields / inputs
   ============================================================ */
.field { display: flex; flex-direction: column; gap: 4px; min-width: 0; margin-bottom: 10px; }
.field > label {
  font-size: 11px;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--steel);
}
input[type="text"], input[type="number"], select, textarea {
  font-family: var(--font-body);
  font-size: 13.5px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-ctl);
  padding: 8px 10px;
  outline: none;
  transition: border-color 0.12s ease, box-shadow 0.12s ease;
  max-width: 100%;
  width: 100%;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: var(--ring); }
textarea { resize: vertical; min-height: 70px; font-family: var(--font-body); }
.field-row { display: flex; flex-wrap: wrap; gap: 12px; }
.field-row .field { flex: 1 1 200px; }

/* ============================================================
   Timer / clock chip
   ============================================================ */
.timer-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--accent-deep);
  background: var(--accent-tint);
  border: 1px solid var(--accent-soft-2);
  border-radius: var(--radius-ctl);
  padding: 7px 14px;
}
.timer-chip .tc-label { font-family: var(--font-body); font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; color: var(--steel); }
.timer-chip.warn { color: var(--warn); background: var(--warn-bg); border-color: #f2e3bd; }
.timer-chip.bad { color: var(--bad); background: var(--bad-bg); border-color: #f5c6c6; }

/* ============================================================
   Prompt / passage block (context text shown to the trainee)
   ============================================================ */
.prompt-block {
  background: var(--neutral-bg);
  border: 1px solid var(--line-2);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-ctl);
  padding: 14px 16px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--ink);
  margin-bottom: 14px;
}
.prompt-block.mono { font-family: var(--font-mono); font-size: 13px; white-space: pre-wrap; }
.prompt-block .pb-label { display: block; font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; color: var(--steel); margin-bottom: 6px; }
.hidden-note {
  font-size: 12.5px;
  color: var(--muted);
  font-style: italic;
  padding: 18px 16px;
  text-align: center;
  border: 1px dashed var(--line);
  border-radius: var(--radius-ctl);
  background: var(--neutral-bg);
}

/* ============================================================
   Typing diff display
   ============================================================ */
.diff-target {
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.9;
  letter-spacing: 0.2px;
  background: #fdfdfc;
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  border-radius: 4px;
  padding: 14px 16px;
  margin-bottom: 12px;
  word-break: break-word;
}
.diff-target .ch-ok { color: var(--good); background: var(--good-bg); }
.diff-target .ch-bad { color: var(--bad); background: var(--bad-bg); text-decoration: underline; }
.diff-target .ch-missing { color: var(--muted); opacity: 0.55; }
.diff-target .ch-cursor { border-left: 2px solid var(--accent-deep); }
.type-input {
  font-family: var(--font-mono);
  font-size: 14px;
}

/* ============================================================
   Lookup tables (cross-referencing)
   ============================================================ */
.lookup-table-wrap { overflow-x: auto; margin-bottom: 14px; }
table.lookup-table { border-collapse: collapse; width: 100%; font-size: 12.5px; min-width: 360px; }
table.lookup-table caption {
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--steel);
  padding-bottom: 6px;
}
table.lookup-table th {
  text-align: left;
  font-size: 11px;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--steel);
  background: var(--neutral-bg);
  border-bottom: 2px solid var(--line);
  padding: 7px 10px;
}
table.lookup-table td { border-bottom: 1px solid var(--line-2); padding: 7px 10px; }
table.lookup-table td.status-Available { color: var(--good); font-weight: 650; }
table.lookup-table td.status-Enroute, table.lookup-table td.status-En-route { color: var(--warn); font-weight: 650; }
table.lookup-table td.status-Outofservice { color: var(--bad); font-weight: 650; }

/* ============================================================
   Grid diagram (map reading)
   ============================================================ */
.grid-wrap { display: flex; justify-content: center; margin-bottom: 14px; }
.grid-wrap svg { max-width: 100%; height: auto; }

/* ============================================================
   Result / feedback chips
   ============================================================ */
.result-panel {
  border-radius: var(--radius-ctl);
  padding: 14px 16px;
  margin-top: 12px;
  border: 1px solid var(--line-2);
  background: var(--neutral-bg);
}
.result-panel.good { background: var(--good-bg); border-color: #c6ecd4; }
.result-panel.warn { background: var(--warn-bg); border-color: #f2e3bd; }
.result-panel.bad { background: var(--bad-bg); border-color: #f5c6c6; }
.result-stats { display: flex; flex-wrap: wrap; gap: 18px; margin-bottom: 8px; }
.result-stat { display: flex; flex-direction: column; gap: 2px; }
.result-stat .rs-num { font-family: var(--font-mono); font-size: 20px; font-weight: 700; color: var(--navy); }
.result-stat .rs-label { font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; color: var(--steel); }
.result-note { font-size: 12.5px; color: var(--steel); line-height: 1.55; }
.field-feedback { font-size: 12px; margin-top: 4px; font-weight: 600; }
.field-feedback.ok { color: var(--good); }
.field-feedback.no { color: var(--bad); }
.field-wrap.ok input, .field-wrap.ok select { border-color: var(--good); background: var(--good-bg); }
.field-wrap.no input, .field-wrap.no select { border-color: var(--bad); background: var(--bad-bg); }

/* ============================================================
   Self-check panel (judgment items)
   ============================================================ */
.selfcheck-answer { margin-top: 14px; }
.model-answer {
  margin-top: 14px;
  background: var(--accent-tint);
  border: 1px solid var(--accent-soft-2);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-ctl);
  padding: 14px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink);
}
.model-answer .ma-label { display: block; font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; color: var(--accent-deep); margin-bottom: 6px; }
.model-answer .ma-scoring { margin-top: 8px; padding-top: 8px; border-top: 1px dashed var(--accent-soft-2); color: var(--steel); font-size: 12.5px; }
.selfscore-row { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.selfscore-btn {
  font-family: var(--font-body);
  font-size: 12.5px;
  font-weight: 650;
  border-radius: 999px;
  padding: 7px 16px;
  cursor: pointer;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--steel);
  transition: all 0.12s ease;
}
.selfscore-btn:hover { border-color: var(--accent); color: var(--accent-deep); }
.selfscore-btn.picked-nailed { background: var(--good-bg); border-color: #c6ecd4; color: var(--good); }
.selfscore-btn.picked-partial { background: var(--warn-bg); border-color: #f2e3bd; color: var(--warn); }
.selfscore-btn.picked-missed { background: var(--bad-bg); border-color: #f5c6c6; color: var(--bad); }

/* ============================================================
   Summary (drill complete) view
   ============================================================ */
.summary-table { width: 100%; border-collapse: collapse; font-size: 12.5px; margin-top: 6px; }
.summary-table th { text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: 0.4px; color: var(--steel); border-bottom: 2px solid var(--line); padding: 6px 8px; }
.summary-table td { border-bottom: 1px solid var(--line-2); padding: 6px 8px; vertical-align: top; }
.summary-table td.num { text-align: center; font-variant-numeric: tabular-nums; white-space: nowrap; }
.badge-good { color: var(--good); font-weight: 650; }
.badge-warn { color: var(--warn); font-weight: 650; }
.badge-bad { color: var(--bad); font-weight: 650; }

/* ============================================================
   Overall dashboard strip on home
   ============================================================ */
.overall-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
  margin-bottom: 4px;
}
.overall-stat { display: flex; flex-direction: column; gap: 2px; }
.overall-stat .os-num { font-family: var(--font-mono); font-size: 22px; font-weight: 700; color: var(--navy); }
.overall-stat .os-label { font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; color: var(--steel); }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 640px) {
  header.app-header { padding: 16px 16px 14px; }
  header.app-header .header-progress { margin-left: 0; flex-basis: 100%; }
  .shell { padding: 14px 14px 8px; }
  .disclaimer-banner { margin: 14px 14px 0; }
  footer.app-footer { padding: 14px 16px 22px; }
  .skill-grid { grid-template-columns: 1fr; }
  .panel > h2 { padding: 14px 16px 4px; font-size: 14px; }
  .panel-body { padding: 10px 16px 16px; }
  .result-stats { gap: 12px; }
  .drill-head h2 { font-size: 17px; }
}

/* ============================================================
   Focus + motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}