/* Layout concept: an exam console — a quiet instrument panel with one working column,
   data set in mono, and a single cobalt accent for whatever the candidate should do next. */
:root {
  --bg: #f2f4f7;
  --surface: #ffffff;
  --surface-2: #e8ecf1;
  --ink: #121d29;
  --ink-2: #455466;
  --ink-3: #74828f;
  --line: #d5dce4;
  --accent: #1d58d0;
  --accent-ink: #ffffff;
  --accent-soft: #e2eafa;
  --ok: #18804f;
  --ok-soft: #e0f2e8;
  --bad: #be3a30;
  --bad-soft: #f8e4e2;
  --warn: #a8690f;
  --warn-soft: #faefd9;
  /* Categorical (validated: CVD ΔE ≥ 8, always shown with text labels) and a sequential blue ramp */
  --c1: #2a78d6;
  --c2: #eb6834;
  --c3: #1baf7a;
  --c4: #eda100;
  --q0: #e8ecf1;
  --q1: #86b6ef;
  --q2: #5598e7;
  --q3: #2a78d6;
  --q4: #1c5cab;
  --q5: #0d366b;
  --d-secure: var(--c1);
  --d-resilient: var(--c2);
  --d-performance: var(--c3);
  --d-cost: var(--c4);
  --shadow: 0 1px 2px rgba(18, 29, 41, 0.06), 0 4px 16px rgba(18, 29, 41, 0.05);

  --font-display: 'Archivo', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'IBM Plex Sans', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;

  --r-sm: 6px;
  --r-md: 10px;
  --gutter: clamp(16px, 4vw, 32px);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --bg: #0d141b;
    --surface: #141d26;
    --surface-2: #1b2631;
    --ink: #e5ecf2;
    --ink-2: #a7b4c1;
    --ink-3: #7b8996;
    --line: #25323e;
    --accent: #6b98f2;
    --accent-ink: #0b1220;
    --accent-soft: #1a2a45;
    --ok: #46be80;
    --ok-soft: #10301f;
    --bad: #f07267;
    --bad-soft: #3a1917;
    --warn: #e3a94b;
    --warn-soft: #3a2b10;
    --c1: #3987e5;
    --c2: #d95926;
    --c3: #199e70;
    --c4: #c98500;
    --q0: #1b2631;
    --q1: #184f95;
    --q2: #256abf;
    --q3: #3987e5;
    --q4: #6da7ec;
    --q5: #9ec5f4;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 4px 16px rgba(0, 0, 0, 0.25);
    color-scheme: dark;
  }
}
:root[data-theme='dark'] {
  --bg: #0d141b;
  --surface: #141d26;
  --surface-2: #1b2631;
  --ink: #e5ecf2;
  --ink-2: #a7b4c1;
  --ink-3: #7b8996;
  --line: #25323e;
  --accent: #6b98f2;
  --accent-ink: #0b1220;
  --accent-soft: #1a2a45;
  --ok: #46be80;
  --ok-soft: #10301f;
  --bad: #f07267;
  --bad-soft: #3a1917;
  --warn: #e3a94b;
  --warn-soft: #3a2b10;
  --c1: #3987e5;
  --c2: #d95926;
  --c3: #199e70;
  --c4: #c98500;
  --q0: #1b2631;
  --q1: #184f95;
  --q2: #256abf;
  --q3: #3987e5;
  --q4: #6da7ec;
  --q5: #9ec5f4;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 4px 16px rgba(0, 0, 0, 0.25);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}
[hidden] {
  display: none !important;
}
html {
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 15px/1.55 var(--font-body);
  -webkit-font-smoothing: antialiased;
}
button,
input,
select {
  font: inherit;
  color: inherit;
}
button {
  cursor: pointer;
}
button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
h1,
h2,
h3 {
  font-family: var(--font-display);
  letter-spacing: -0.01em;
  text-wrap: balance;
  margin: 0;
}
h1 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 800;
}
h2 {
  font-size: 1.15rem;
  font-weight: 700;
}
h3 {
  font-size: 1rem;
  font-weight: 700;
}
p {
  margin: 0;
}
.muted {
  color: var(--ink-2);
}
.small {
  font-size: 0.85rem;
}
.mono,
.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}
.eyebrow {
  font: 600 0.72rem/1.2 var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.loading {
  padding: 4rem 0;
  color: var(--ink-2);
}

/* ---------- Top bar ---------- */
.topbar {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 20;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px var(--gutter);
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  background: none;
  border: 0;
  padding: 0;
  text-align: left;
}
.brand-mark {
  font: 700 0.78rem/1 var(--font-mono);
  letter-spacing: 0.04em;
  background: var(--ink);
  color: var(--bg);
  padding: 8px 7px;
  border-radius: var(--r-sm);
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.brand-text strong {
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 800;
}
.brand-text small {
  color: var(--ink-3);
  font-size: 0.74rem;
}
.nav {
  display: flex;
  gap: 2px;
  flex: 1;
  flex-wrap: wrap;
}
.nav button {
  background: none;
  border: 0;
  padding: 7px 12px;
  border-radius: var(--r-sm);
  color: var(--ink-2);
  font-weight: 500;
  font-size: 0.92rem;
}
.nav button:hover {
  background: var(--surface-2);
  color: var(--ink);
}
.nav button[aria-current='page'] {
  color: var(--ink);
  background: var(--surface-2);
  box-shadow: inset 0 -2px 0 var(--accent);
}
.theme-toggle {
  background: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 12px;
  font: 500 0.78rem var(--font-mono);
  color: var(--ink-2);
}
@media (max-width: 1080px) {
  .nav {
    order: 3;
    flex-basis: 100%;
    overflow-x: auto;
    flex-wrap: nowrap;
  }
  .nav button {
    white-space: nowrap;
  }
  .top-tools {
    margin-left: auto;
  }
}
@media (max-width: 760px) {
  .topbar {
    position: static;
  }
  .brand-text small {
    display: none;
  }
}

/* ---------- Shell & generic blocks ---------- */
.shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px var(--gutter) 80px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.page-head {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.page-head p {
  color: var(--ink-2);
  max-width: 70ch;
}
.section {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  padding: 8px 14px;
  border-radius: var(--r-sm);
  font-weight: 500;
  font-size: 0.9rem;
  white-space: nowrap;
}
.btn:hover:not(:disabled) {
  border-color: var(--ink-3);
}
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
}
.btn.primary:hover:not(:disabled) {
  filter: brightness(1.07);
  border-color: var(--accent);
}
.btn.ghost {
  background: none;
  border-color: transparent;
  color: var(--ink-2);
}
.btn.ghost:hover {
  color: var(--ink);
  background: var(--surface-2);
}
.btn.danger {
  color: var(--bad);
}
.btn.sm {
  padding: 5px 10px;
  font-size: 0.82rem;
}
.btn-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 999px;
  font: 600 0.72rem/1.4 var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.pill.pass {
  background: var(--ok-soft);
  color: var(--ok);
}
.pill.fail {
  background: var(--bad-soft);
  color: var(--bad);
}
.pill.neutral {
  background: var(--surface-2);
  color: var(--ink-2);
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border-radius: var(--r-sm);
  background: var(--surface-2);
  color: var(--ink-2);
  font-size: 0.78rem;
  line-height: 1.4;
  border: 1px solid transparent;
}
.chip .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
}
button.chip:hover {
  border-color: var(--ink-3);
  color: var(--ink);
}
button.chip[aria-pressed='true'] {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent);
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.d-secure {
  --d: var(--d-secure);
}
.d-resilient {
  --d: var(--d-resilient);
}
.d-performance {
  --d: var(--d-performance);
}
.d-cost {
  --d: var(--d-cost);
}
.chip.domain {
  color: var(--ink-2);
}
.chip.domain .dot {
  background: var(--d);
}
.meter {
  height: 6px;
  border-radius: 999px;
  background: var(--surface-2);
  overflow: hidden;
}
.meter > span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--d, var(--accent));
}
.empty {
  padding: 28px;
  text-align: center;
  color: var(--ink-2);
  border: 1px dashed var(--line);
  border-radius: var(--r-md);
}
.acc-good {
  color: var(--ok);
}
.acc-mid {
  color: var(--warn);
}
.acc-bad {
  color: var(--bad);
}

/* ---------- Dashboard ---------- */
.banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 14px 18px;
  border-radius: var(--r-md);
  background: var(--accent-soft);
  border: 1px solid var(--accent);
}
.banner p {
  min-width: 0;
}
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 20px;
}
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }
}
.readiness {
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: var(--shadow);
}
.score-line {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}
.score-big {
  font: 800 clamp(3rem, 7vw, 4.2rem)/1 var(--font-display);
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}
.score-scale {
  font: 500 1rem var(--font-mono);
  color: var(--ink-3);
}
.scale {
  position: relative;
  padding-top: 4px;
}
.scale-track {
  position: relative;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--bad-soft) 0 68.9%, var(--ok-soft) 68.9% 100%);
}
.scale-pass {
  position: absolute;
  top: -4px;
  bottom: -4px;
  left: 68.9%;
  width: 2px;
  background: var(--ink);
}
.scale-marker {
  position: absolute;
  top: 50%;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  background: var(--accent);
  border: 3px solid var(--surface);
  box-shadow: 0 0 0 1px var(--accent);
}
.scale-labels {
  display: flex;
  justify-content: space-between;
  font: 500 0.72rem var(--font-mono);
  color: var(--ink-3);
  margin-top: 6px;
  position: relative;
}
.scale-labels .pass-label {
  position: absolute;
  left: 68.9%;
  transform: translateX(-50%);
  color: var(--ink);
}
.kpis {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
@media (max-width: 520px) {
  .kpis {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
.kpis dt {
  font: 600 0.68rem var(--font-mono);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.kpis dd {
  margin: 2px 0 0;
  font: 700 1.35rem var(--font-display);
  font-variant-numeric: tabular-nums;
}
.launch {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
@media (max-width: 520px) {
  .launch {
    grid-template-columns: 1fr;
  }
}
.launch-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-align: left;
  padding: 16px;
  border-radius: var(--r-md);
  background: var(--surface);
  border: 1px solid var(--line);
  min-height: 92px;
}
.launch-card:hover:not(:disabled) {
  border-color: var(--accent);
}
.launch-card .lc-title {
  font: 700 1rem var(--font-display);
}
.launch-card .lc-sub {
  font-size: 0.82rem;
  color: var(--ink-2);
}
.launch-card .lc-count {
  font: 600 0.78rem var(--font-mono);
  color: var(--accent);
  margin-top: auto;
}
.launch-card.primary {
  grid-column: 1 / -1;
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.launch-card.primary .lc-sub {
  color: color-mix(in srgb, var(--bg) 75%, transparent);
}
.launch-card.primary .lc-title {
  font-size: 1.2rem;
}
.launch-card.primary:hover {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.domains {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
@media (max-width: 900px) {
  .domains {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 520px) {
  .domains {
    grid-template-columns: 1fr;
  }
}
.domain-card {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-top: 3px solid var(--d);
}
.domain-card .dc-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
}
.domain-card .dc-weight {
  font: 600 0.75rem var(--font-mono);
  color: var(--ink-2);
}
.domain-card .dc-acc {
  font: 800 1.6rem var(--font-display);
  font-variant-numeric: tabular-nums;
}
.domain-card .dc-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--ink-2);
}

.heatmap {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(168px, 1fr));
  gap: 8px;
}
.heat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: left;
  padding: 12px;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
  background: var(--surface);
  min-height: 96px;
  position: relative;
  overflow: hidden;
}
.heat::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--heat, transparent);
  opacity: 0.16;
  pointer-events: none;
}
.heat:hover {
  border-color: var(--ink-3);
}
.heat .h-num {
  font: 600 0.7rem var(--font-mono);
  color: var(--ink-3);
}
.heat .h-title {
  font: 600 0.86rem/1.25 var(--font-body);
  position: relative;
}
.heat .h-stat {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  font: 500 0.75rem var(--font-mono);
  color: var(--ink-2);
  position: relative;
}
.legend {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 0.78rem;
  color: var(--ink-2);
  align-items: center;
}
.legend i {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  margin-right: 5px;
  vertical-align: -1px;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface);
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
th,
td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}
th {
  font: 600 0.7rem var(--font-mono);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-3);
  background: var(--surface-2);
  white-space: nowrap;
}
tr:last-child td {
  border-bottom: 0;
}
td.num,
th.num {
  text-align: right;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}
tr.clickable {
  cursor: pointer;
}
tr.clickable:hover td {
  background: var(--surface-2);
}
.acc-cell {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 150px;
}
.acc-cell .meter {
  flex: 1;
}
.acc-cell .mono {
  width: 3.2em;
  text-align: right;
}

/* ---------- Modules ---------- */
.mod-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 14px;
}
@media (max-width: 400px) {
  .mod-grid {
    grid-template-columns: 1fr;
  }
}
.mod-card {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.mod-card header {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.mod-num {
  font: 700 0.82rem var(--font-mono);
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: var(--r-sm);
  padding: 4px 7px;
}
.mod-card header > div {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.mod-card .mod-blurb {
  color: var(--ink-2);
  font-size: 0.85rem;
}
.mod-stats {
  display: flex;
  gap: 16px;
  font: 500 0.78rem var(--font-mono);
  color: var(--ink-2);
  flex-wrap: wrap;
}
.mod-stats b {
  color: var(--ink);
  font-weight: 600;
}
.mod-card .btn-row {
  margin-top: auto;
}

/* ---------- Toolbar & forms ---------- */
.toolbar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: end;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.field label,
.field .label {
  font: 600 0.7rem var(--font-mono);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.input,
select.input {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: var(--r-sm);
  padding: 8px 10px;
  min-width: 0;
  font-size: 0.9rem;
}
.input:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}
.field.grow {
  flex: 1 1 240px;
}

/* ---------- Builder ---------- */
.builder {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 20px;
  align-items: start;
}
@media (max-width: 960px) {
  .builder {
    grid-template-columns: 1fr;
  }
}
.b-panel {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.b-panel + .b-panel {
  margin-top: 14px;
}
.b-panel .section-head h2 {
  font-size: 1rem;
}
.check-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 4px 12px;
}
.check {
  display: flex;
  gap: 9px;
  align-items: flex-start;
  padding: 6px 4px;
  border-radius: var(--r-sm);
  font-size: 0.88rem;
  cursor: pointer;
}
.check:hover {
  background: var(--surface-2);
}
.check input {
  margin-top: 3px;
  accent-color: var(--accent);
}
.check .count {
  margin-left: auto;
  font: 500 0.75rem var(--font-mono);
  color: var(--ink-3);
}
.seg {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  overflow: hidden;
  flex-wrap: wrap;
}
.seg button {
  background: var(--surface);
  border: 0;
  border-right: 1px solid var(--line);
  padding: 7px 12px;
  font: 500 0.85rem var(--font-mono);
}
.seg button:last-child {
  border-right: 0;
}
.seg button[aria-pressed='true'] {
  background: var(--accent);
  color: var(--accent-ink);
}
.b-summary {
  position: sticky;
  top: 90px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: var(--shadow);
}
.b-summary .big {
  font: 800 2.6rem/1 var(--font-display);
  font-variant-numeric: tabular-nums;
}
.opt-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.radio-card {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  cursor: pointer;
}
.radio-card:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.radio-card input {
  margin-top: 4px;
  accent-color: var(--accent);
}
.radio-card span {
  display: flex;
  flex-direction: column;
  font-size: 0.88rem;
}
.radio-card small {
  color: var(--ink-2);
  font-size: 0.78rem;
}

/* ---------- Quiz ---------- */
.quiz-bar {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: space-between;
}
.quiz-bar .qb-title {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.quiz-bar .qb-tools {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.clock {
  font: 600 1.05rem var(--font-mono);
  font-variant-numeric: tabular-nums;
  padding: 6px 12px;
  border-radius: var(--r-sm);
  background: var(--surface);
  border: 1px solid var(--line);
}
.clock.low {
  color: var(--bad);
  border-color: var(--bad);
  background: var(--bad-soft);
}
.progress {
  height: 4px;
  background: var(--surface-2);
  border-radius: 999px;
  overflow: hidden;
}
.progress span {
  display: block;
  height: 100%;
  background: var(--accent);
  transition: width 0.25s ease;
}
.quiz-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 20px;
  align-items: start;
}
@media (max-width: 960px) {
  .quiz-grid {
    grid-template-columns: 1fr;
  }
}
.qcard {
  padding: clamp(18px, 3vw, 30px);
  display: flex;
  flex-direction: column;
  gap: 18px;
  box-shadow: var(--shadow);
}
.qmeta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
.qnum {
  font: 700 0.8rem var(--font-mono);
  color: var(--ink-3);
  margin-right: 4px;
}
.qtext {
  font: 500 1.08rem/1.6 var(--font-body);
  max-width: 75ch;
  letter-spacing: 0;
}
.qhint {
  font: 600 0.78rem var(--font-mono);
  color: var(--accent);
}
.options {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.opt {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  text-align: left;
  padding: 12px 14px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: var(--surface);
  line-height: 1.5;
  font-size: 0.95rem;
  transition:
    border-color 0.12s,
    background 0.12s;
}
.opt:hover:not(:disabled) {
  border-color: var(--ink-3);
}
.opt:disabled {
  opacity: 1;
  cursor: default;
}
.opt .key {
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--line);
  font: 600 0.78rem var(--font-mono);
  color: var(--ink-2);
}
.opt.multi .key {
  border-radius: 6px;
}
.opt.selected {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.opt.selected .key {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}
.opt.correct {
  border-color: var(--ok);
  background: var(--ok-soft);
}
.opt.correct .key {
  background: var(--ok);
  border-color: var(--ok);
  color: var(--surface);
}
.opt.wrong {
  border-color: var(--bad);
  background: var(--bad-soft);
}
.opt.wrong .key {
  background: var(--bad);
  border-color: var(--bad);
  color: var(--surface);
}
.opt .mark {
  font: 600 0.7rem var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  align-self: center;
  white-space: nowrap;
}
.opt.correct .mark {
  color: var(--ok);
}
.opt.wrong .mark {
  color: var(--bad);
}
.feedback {
  border-radius: var(--r-md);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border: 1px solid;
}
.feedback.ok {
  background: var(--ok-soft);
  border-color: var(--ok);
}
.feedback.bad {
  background: var(--bad-soft);
  border-color: var(--bad);
}
.feedback .verdict {
  font: 700 1rem var(--font-display);
}
.feedback.ok .verdict {
  color: var(--ok);
}
.feedback.bad .verdict {
  color: var(--bad);
}
.feedback p {
  max-width: 75ch;
}
.qactions {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  padding-top: 4px;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}
.flag-btn[aria-pressed='true'] {
  color: var(--warn);
  border-color: var(--warn);
  background: var(--warn-soft);
}

.navigator {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: sticky;
  top: 90px;
}
@media (max-width: 960px) {
  .navigator {
    position: static;
  }
}
.nav-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(34px, 1fr));
  gap: 5px;
}
.nav-grid button {
  height: 32px;
  border-radius: 5px;
  border: 1px solid var(--line);
  background: var(--surface);
  font: 500 0.74rem var(--font-mono);
  color: var(--ink-2);
  position: relative;
  padding: 0;
}
.nav-grid button.answered {
  background: var(--surface-2);
  color: var(--ink);
  border-color: var(--ink-3);
}
.nav-grid button.ok {
  background: var(--ok-soft);
  border-color: var(--ok);
  color: var(--ok);
}
.nav-grid button.bad {
  background: var(--bad-soft);
  border-color: var(--bad);
  color: var(--bad);
}
.nav-grid button.flagged::after {
  content: '';
  position: absolute;
  top: 2px;
  right: 2px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--warn);
}
.nav-grid button.current {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  color: var(--ink);
}
.keys {
  font-size: 0.76rem;
  color: var(--ink-2);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 10px;
}
kbd {
  font: 600 0.7rem var(--font-mono);
  padding: 1px 6px;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 4px;
  background: var(--surface-2);
  color: var(--ink);
}

/* ---------- Review & results ---------- */
.result-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: 20px;
}
@media (max-width: 900px) {
  .result-head {
    grid-template-columns: 1fr;
  }
}
.result-score {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: var(--shadow);
}
.result-breakdown {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.bar-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 2fr 70px;
  gap: 12px;
  align-items: center;
  font-size: 0.86rem;
}
.bar-row .mono {
  text-align: right;
  font-size: 0.8rem;
}
@media (max-width: 520px) {
  .bar-row {
    grid-template-columns: 1fr 70px;
  }
  .bar-row .meter {
    grid-column: 1 / -1;
    grid-row: 2;
  }
}
.tabs {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.tabs button {
  background: none;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 5px 12px;
  font-size: 0.84rem;
  color: var(--ink-2);
}
.tabs button[aria-pressed='true'] {
  border-color: var(--ink);
  color: var(--ink);
  background: var(--surface);
}
.review-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.review-item {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface);
}
.review-item > summary {
  list-style: none;
  cursor: pointer;
  padding: 12px 16px;
  display: grid;
  grid-template-columns: 44px 22px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
}
.review-item > summary::-webkit-details-marker {
  display: none;
}
.review-item .ri-num {
  font: 600 0.78rem var(--font-mono);
  color: var(--ink-3);
  padding-top: 2px;
}
.review-item .ri-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font: 700 0.72rem var(--font-mono);
  margin-top: 1px;
}
.review-item .ri-icon.ok {
  background: var(--ok-soft);
  color: var(--ok);
}
.review-item .ri-icon.bad {
  background: var(--bad-soft);
  color: var(--bad);
}
.review-item .ri-q {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: 0.9rem;
}
.review-item[open] .ri-q {
  -webkit-line-clamp: unset;
  display: block;
}
.review-body {
  padding: 0 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.review-body .options .opt {
  cursor: default;
}
.explain {
  background: var(--surface-2);
  border-radius: var(--r-sm);
  padding: 12px 14px;
  font-size: 0.9rem;
  max-width: 80ch;
}
.explain strong {
  font-family: var(--font-display);
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(44px, 1fr));
  gap: 6px;
}
.review-grid button {
  height: 40px;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
  background: var(--surface);
  font: 600 0.8rem var(--font-mono);
  position: relative;
}
.review-grid button.answered {
  background: var(--surface-2);
}
.review-grid button.unanswered {
  border-color: var(--bad);
  color: var(--bad);
}
.review-grid button.flagged::after {
  content: '';
  position: absolute;
  top: 3px;
  right: 3px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--warn);
}

/* ---------- Bank ---------- */
.bank-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.bank-item {
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.bank-item .bi-q {
  font-size: 0.95rem;
  max-width: 80ch;
}
.bank-item ol {
  margin: 0;
  padding-left: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.bank-item li {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 8px;
  font-size: 0.88rem;
  color: var(--ink-2);
  padding: 4px 6px;
  border-radius: 4px;
}
.bank-item li .k {
  font: 600 0.76rem var(--font-mono);
}
.bank-item.revealed li.is-answer {
  background: var(--ok-soft);
  color: var(--ink);
}
.bank-item.revealed li.is-answer .k {
  color: var(--ok);
}
.pager {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: center;
  font: 500 0.85rem var(--font-mono);
  color: var(--ink-2);
}

/* ---------- Toast & confirm ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: calc(24px + env(safe-area-inset-bottom, 0px));
  transform: translateX(-50%);
  z-index: 50;
  background: var(--ink);
  color: var(--bg);
  padding: 10px 16px;
  border-radius: var(--r-sm);
  font-size: 0.88rem;
  box-shadow: var(--shadow);
  max-width: calc(100vw - 32px);
}
.footer-tools {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
  color: var(--ink-3);
  font-size: 0.8rem;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}
@media (max-width: 520px) {
  .qtext {
    font-size: 1rem;
  }
  .opt {
    padding: 10px 12px;
    gap: 10px;
    font-size: 0.92rem;
  }
}

/* ---------- Study level ---------- */
.top-tools {
  display: flex;
  align-items: center;
  gap: 8px;
}
.level-select {
  display: flex;
  align-items: center;
  gap: 6px;
  font: 600 0.7rem var(--font-mono);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.level-select select {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 999px;
  padding: 4px 10px;
  font: 500 0.8rem var(--font-body);
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink);
}
/* Language selector (study app, admin console, sign-in page) */
.lang-select {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 999px;
  padding: 4px 8px;
  font: 500 0.8rem var(--font-body);
  color: var(--ink);
  max-width: 7.5rem;
}
@media (max-width: 520px) {
  /* Level, language and theme share one row on phones: drop the "Level" caption and let the row wrap. */
  .top-tools {
    flex-wrap: wrap;
  }
  .level-select > span {
    display: none;
  }
}
.auth-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.level-panel {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.level-panel .section-head {
  align-items: center;
}
.level-panel > p {
  max-width: 90ch;
}
.level-options {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
@media (max-width: 760px) {
  .level-options {
    grid-template-columns: 1fr;
  }
}
.level-opt {
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: left;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface);
}
.level-opt:hover {
  border-color: var(--ink-3);
}
.level-opt[aria-pressed='true'] {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: inset 0 0 0 1px var(--accent);
}
.level-opt .lo-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
}
.level-opt .lo-top strong {
  font: 700 1rem var(--font-display);
}
.level-opt .lo-top .mono {
  color: var(--ink-3);
}
.level-opt .lo-blurb {
  font-size: 0.84rem;
  color: var(--ink-2);
}
.level-opt .lo-stat {
  font-size: 0.75rem;
  color: var(--ink-2);
  margin-top: auto;
}
.level-opt .lo-stat b {
  font-weight: 600;
}
.placement-split {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.result-score .score-big:not(.num) {
  word-break: break-word;
}
.key-point {
  display: block;
  margin-top: 10px;
  padding: 8px 12px;
  border-radius: var(--r-sm);
  background: var(--accent-soft);
  color: var(--ink);
}
.feedback .key-point {
  background: var(--surface);
}
@media (max-width: 1080px) {
  .b-summary,
  .navigator {
    top: 124px;
  }
}

/* ---------- Learning loop: today, confidence, recall, notes ---------- */
.today {
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.ring-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}
.ring {
  width: 64px;
  height: 64px;
  flex: none;
}
.ring-bg {
  fill: none;
  stroke: var(--surface-2);
  stroke-width: 7;
}
.ring-fg {
  fill: none;
  stroke: var(--accent);
  stroke-width: 7;
  stroke-linecap: round;
  transition: stroke-dasharray 0.4s ease;
}
.ring-fg.done {
  stroke: var(--ok);
}
.today-num {
  font: 500 1rem var(--font-body);
}
.today-num b {
  font: 800 1.5rem var(--font-display);
  font-variant-numeric: tabular-nums;
}
.today-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.conf-group {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.conf-label {
  font: 600 0.72rem var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-right: 4px;
}
.conf-group kbd,
.btn kbd {
  margin-left: 2px;
}
.btn.primary kbd {
  background: transparent;
  color: inherit;
  border-color: color-mix(in srgb, currentColor 40%, transparent);
}
.recall-gate {
  padding: 18px 20px;
  border-radius: var(--r-md);
  background: var(--accent-soft);
  border: 1px dashed var(--accent);
  max-width: 75ch;
}
.coach {
  font-size: 0.88rem;
  padding-top: 8px;
  border-top: 1px solid color-mix(in srgb, currentColor 15%, transparent);
}
.note-box {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.note-box label {
  font: 600 0.72rem var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.note-box textarea {
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--surface);
  padding: 10px 12px;
  font: inherit;
  font-size: 0.9rem;
  resize: vertical;
  min-height: 60px;
}
.note-box textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}
.my-note {
  border: 1px dashed var(--line);
  border-radius: var(--r-sm);
  padding: 10px 14px;
  font-size: 0.9rem;
}

/* ---------- Overlay & tooltip ---------- */
.no-scroll {
  overflow: hidden;
}
.overlay {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(6, 10, 15, 0.6);
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: max(24px, env(safe-area-inset-top, 0px)) 16px 24px;
  overflow-y: auto;
}
.overlay-panel {
  width: min(1080px, 100%);
  padding: clamp(18px, 3vw, 30px);
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: relative;
  box-shadow: var(--shadow);
}
.overlay-close {
  position: absolute;
  top: 12px;
  right: 12px;
}
.tip {
  position: fixed;
  z-index: 80;
  pointer-events: none;
  background: var(--ink);
  color: var(--bg);
  padding: 6px 10px;
  border-radius: var(--r-sm);
  font: 500 0.78rem var(--font-body);
  max-width: 280px;
  box-shadow: var(--shadow);
}

/* ---------- Guides ---------- */
.guide-head {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-right: 90px;
}
.guide-head h2 {
  font-size: 1.45rem;
}
.guide-table table {
  min-width: 560px;
}
.guide-table th[scope='row'] {
  font: 600 0.74rem var(--font-mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-3);
  background: var(--surface-2);
  white-space: normal;
  min-width: 120px;
  position: sticky;
  left: 0;
}
.guide-table thead th {
  font: 700 0.86rem var(--font-display);
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink);
}
.guide-table td {
  font-size: 0.86rem;
  min-width: 150px;
  vertical-align: top;
}
.guide-table .pick-row td {
  background: var(--accent-soft);
  font-weight: 500;
}
.guide-table .pick-row th {
  background: var(--accent-soft);
  color: var(--accent);
}
.guide-foot {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 14px;
}
@media (max-width: 760px) {
  .guide-foot {
    grid-template-columns: 1fr;
  }
}
.traps,
.remember {
  border-radius: var(--r-md);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.traps {
  background: var(--warn-soft);
}
.traps ul {
  margin: 0;
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9rem;
}
.remember {
  background: var(--accent-soft);
}
.remember p {
  font: 600 1rem/1.45 var(--font-display);
}
.scale-legend {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 0.82rem;
  color: var(--ink-2);
}
.sw {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  margin-right: 6px;
  vertical-align: -1px;
}
.s-0 {
  background: var(--c1);
}
.s-1 {
  background: var(--c2);
}
.s-2 {
  background: var(--c3);
}
.scale-list {
  display: flex;
  flex-direction: column;
}
.scale-item {
  display: grid;
  grid-template-columns: minmax(0, 200px) minmax(0, 260px) minmax(0, 1fr);
  gap: 8px 18px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.scale-item:last-child {
  border-bottom: 0;
}
@media (max-width: 760px) {
  .scale-item {
    grid-template-columns: 1fr;
  }
}
.si-name {
  font: 700 0.95rem var(--font-display);
}
.si-bars {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.si-axis {
  display: grid;
  grid-template-columns: 110px auto;
  align-items: center;
  gap: 8px;
  font-size: 0.76rem;
  color: var(--ink-2);
}
.pips {
  display: inline-flex;
  gap: 2px;
}
.pips i {
  width: 22px;
  height: 10px;
  border-radius: 2px;
  background: var(--surface-2);
}
.pips i:first-child {
  border-radius: 4px 2px 2px 4px;
}
.pips i:last-child {
  border-radius: 2px 4px 4px 2px;
}
.si-detail {
  font-size: 0.86rem;
  color: var(--ink-2);
}
.flow {
  list-style: none;
  counter-reset: step;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.flow-step {
  counter-increment: step;
  position: relative;
  padding: 0 0 18px 44px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.flow-step::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font: 700 0.8rem var(--font-mono);
  background: var(--surface-2);
  color: var(--ink);
  border: 1px solid var(--line);
}
.flow-step::after {
  content: '';
  position: absolute;
  left: 14px;
  top: 30px;
  bottom: 2px;
  width: 2px;
  background: var(--line);
}
.flow-step.fallback::before {
  content: '→';
}
.flow-step:last-child::after {
  display: none;
}
.fs-ask {
  font-weight: 500;
  padding-top: 3px;
}
.fs-yes {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.fs-tag {
  font: 700 0.68rem var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--ok-soft);
  color: var(--ok);
}
.fs-yes strong {
  font-family: var(--font-display);
}
.fs-why {
  font-size: 0.85rem;
  color: var(--ink-2);
}
.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}
@media (max-width: 400px) {
  .guide-grid {
    grid-template-columns: 1fr;
  }
}
.guide-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: left;
  padding: 16px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: var(--surface);
}
.guide-card:hover {
  border-color: var(--accent);
}
.gc-top {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: center;
}
.gc-title {
  font: 700 1.02rem var(--font-display);
}
.gc-sum {
  font-size: 0.85rem;
  color: var(--ink-2);
}
.guide-chip {
  background: var(--accent-soft);
  color: var(--accent);
}
.big-tabs button {
  font-size: 0.92rem;
  padding: 7px 14px;
}

/* ---------- Keywords ---------- */
.kw-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 10px;
}
@media (max-width: 400px) {
  .kw-list {
    grid-template-columns: 1fr;
  }
}
.kw-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.kw-item.known {
  border-color: var(--ok);
}
.kw-cue {
  font-style: italic;
  color: var(--ink);
}
.kw-answer strong {
  font-family: var(--font-display);
  color: var(--accent);
}
.kw-arrow {
  color: var(--ink-3);
}
.kw-why {
  font-size: 0.84rem;
  color: var(--ink-2);
}
.fc-progress {
  display: flex;
  justify-content: space-between;
  gap: 8px;
}
.flashcard {
  padding: clamp(22px, 4vw, 40px);
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 260px;
  box-shadow: var(--shadow);
}
.fc-cue {
  font: 600 clamp(1.2rem, 2.6vw, 1.6rem)/1.35 var(--font-display);
  max-width: 40ch;
  text-wrap: balance;
}
.fc-answer {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.fc-ans {
  font: 800 1.5rem var(--font-display);
  color: var(--accent);
}
.method-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 12px;
}
@media (max-width: 400px) {
  .method-grid {
    grid-template-columns: 1fr;
  }
}
.method-card {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.9rem;
}
.routine {
  margin: 0;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 80ch;
}
.b-panel > .radio-card {
  max-width: 640px;
}

/* ---------- Insights ---------- */
.stat-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
@media (max-width: 760px) {
  .stat-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
.stat {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: flex-start;
}
.stat-num {
  font: 800 2rem/1.1 var(--font-display);
  font-variant-numeric: tabular-nums;
}
.insight-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 14px;
}
@media (max-width: 900px) {
  .insight-grid {
    grid-template-columns: 1fr;
  }
}
.cal-wrap {
  overflow-x: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.cal {
  display: grid;
  grid-template-columns: 30px auto;
  grid-template-rows: auto auto;
  gap: 4px 6px;
  justify-content: start;
}
.cal-months {
  grid-column: 2;
  display: grid;
  grid-auto-flow: column;
  gap: 3px;
  font: 500 0.7rem var(--font-mono);
  color: var(--ink-3);
  height: 14px;
}
.cal-months span {
  white-space: nowrap;
}
.cal-days {
  grid-row: 2;
  display: grid;
  grid-template-rows: repeat(7, 14px);
  gap: 3px;
  font: 500 0.66rem var(--font-mono);
  color: var(--ink-3);
}
.cal-days span {
  line-height: 1;
  display: flex;
  align-items: center;
}
.cal-grid {
  grid-column: 2;
  grid-row: 2;
  display: grid;
  grid-auto-flow: column;
  grid-template-rows: repeat(7, 14px);
  grid-auto-columns: 14px;
  gap: 3px;
}
.cal-cell {
  display: block;
  width: 14px;
  height: 14px;
  border-radius: 3px;
  background: var(--q0);
}
.cal-cell.future {
  background: transparent;
}
.cal-cell.l1 {
  background: var(--q1);
}
.cal-cell.l2 {
  background: var(--q2);
}
.cal-cell.l3 {
  background: var(--q3);
}
.cal-cell.l4 {
  background: var(--q5);
}
.cal-legend {
  gap: 4px;
}
.cal-legend .cal-cell {
  width: 12px;
  height: 12px;
}
.chart-wrap {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.chart {
  width: 100%;
  height: auto;
  overflow: visible;
}
.ch-grid {
  stroke: var(--line);
  stroke-width: 1;
}
.ch-tick {
  fill: var(--ink-3);
  font: 500 11px var(--font-mono);
}
.ch-pass {
  stroke: var(--ink-2);
  stroke-width: 1;
  stroke-dasharray: 4 4;
}
.ch-pass-label {
  fill: var(--ink-2);
  font: 600 11px var(--font-mono);
}
.ch-area {
  fill: var(--accent);
  opacity: 0.08;
}
.ch-line {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
  stroke-linejoin: round;
  stroke-linecap: round;
}
.ch-dot {
  fill: var(--accent);
  stroke: var(--surface);
  stroke-width: 2;
}
.ch-dot.exam {
  fill: var(--surface);
  stroke: var(--accent);
}
.ch-dot.end {
  stroke-width: 3;
}
.ch-hit {
  fill: transparent;
  cursor: default;
}
.ch-hit:hover {
  fill: color-mix(in srgb, var(--accent) 12%, transparent);
}
.ch-end-label {
  fill: var(--ink);
  font: 700 12px var(--font-mono);
}
.mem-bar {
  display: flex;
  gap: 2px;
  height: 22px;
  border-radius: 4px;
  overflow: hidden;
}
.mem-seg {
  min-width: 3px;
}
.mem-seg:first-child {
  border-radius: 4px 0 0 4px;
}
.mem-seg:last-child {
  border-radius: 0 4px 4px 0;
}
.b0 {
  background: var(--q0);
  box-shadow: inset 0 0 0 1px var(--line);
}
.b1 {
  background: var(--q1);
}
.b2 {
  background: var(--q2);
}
.b3 {
  background: var(--q3);
}
.b4 {
  background: var(--q4);
}
.b5 {
  background: var(--q5);
}
.mem-sw {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  margin-right: 5px;
  vertical-align: -1px;
}
.mem-legend b {
  color: var(--ink);
  font-weight: 600;
}
.calib {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.calib .meter > span {
  background: var(--accent);
}
.mis-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mis-list li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: flex-start;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}
.mis-q {
  font-size: 0.86rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.weak-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.weak-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr) auto;
  gap: 10px;
  align-items: center;
  font-size: 0.86rem;
}
@media (max-width: 520px) {
  .weak-row {
    grid-template-columns: 1fr auto;
  }
  .weak-row .acc-cell {
    grid-column: 1 / -1;
    grid-row: 2;
  }
}
.pips i.s-0 {
  background: var(--c1);
}
.pips i.s-1 {
  background: var(--c2);
}
.pips i.s-2 {
  background: var(--c3);
}

/* ---------- Sync status ---------- */
.sync-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font: 500 0.76rem var(--font-mono);
  color: var(--ink-2);
  border: 1px solid var(--line);
  white-space: nowrap;
}
.sync-pill::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ink-3);
}
.sync-pill[data-state='saved']::before {
  background: var(--ok);
}
.sync-pill[data-state='saving']::before {
  background: var(--accent);
}
.sync-pill[data-state='offline']::before,
.sync-pill[data-state='error']::before {
  background: var(--bad);
}
.sync-pill[data-state='offline'],
.sync-pill[data-state='error'] {
  color: var(--bad);
  border-color: var(--bad);
}
.import-box {
  font: 400 0.8rem var(--font-mono);
  resize: vertical;
  min-height: 64px;
  width: 100%;
}
a.btn {
  text-decoration: none;
}
@media (max-width: 520px) {
  #syncStatus {
    display: none;
  }
}

/* ---------- Account menu ---------- */
.user-menu {
  position: relative;
}
.user-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: 180px;
  padding: 5px 12px 5px 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font: 500 0.82rem var(--font-body);
}
.user-btn::before {
  content: '';
  width: 22px;
  height: 22px;
  border-radius: 50%;
  flex: none;
  background: var(--accent-soft);
  box-shadow: inset 0 0 0 1px var(--accent);
}
.user-btn span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.user-panel {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  z-index: 40;
  min-width: 220px;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  box-shadow: var(--shadow);
}
.up-email {
  font: 500 0.78rem var(--font-mono);
  color: var(--ink-3);
  padding: 6px 10px 8px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 4px;
  word-break: break-all;
}
.up-link {
  display: block;
  text-align: left;
  padding: 8px 10px;
  border-radius: var(--r-sm);
  background: none;
  border: 0;
  color: var(--ink);
  text-decoration: none;
  font-size: 0.9rem;
}
.up-link:hover {
  background: var(--surface-2);
}

/* ---------- Sign-in page ---------- */
.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 16px;
}
.auth-card {
  width: min(420px, 100%);
  padding: clamp(22px, 5vw, 34px);
  display: flex;
  flex-direction: column;
  gap: 18px;
  box-shadow: var(--shadow);
}
.auth-card .brand {
  pointer-events: none;
}
.auth-card h1 {
  font-size: 1.5rem;
}
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.auth-form .input {
  width: 100%;
  padding: 10px 12px;
  font-size: 0.95rem;
}
.auth-form .btn {
  width: 100%;
  padding: 11px 14px;
}
.auth-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink-3);
  font: 500 0.74rem var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--line);
}
.btn.google {
  background: var(--surface);
}
.btn.google svg {
  width: 18px;
  height: 18px;
  flex: none;
}
.auth-msg {
  border-radius: var(--r-sm);
  padding: 10px 12px;
  font-size: 0.88rem;
}
.auth-msg.error {
  background: var(--bad-soft);
  color: var(--bad);
}
.auth-msg.info {
  background: var(--accent-soft);
  color: var(--ink);
}
.auth-foot {
  font-size: 0.8rem;
  color: var(--ink-3);
  text-align: center;
}