:root {
  --bg: #f4f1ea;
  --surface: #fffdf8;
  --surface-alt: #f0e7d8;
  --ink: #1e1a16;
  --muted: #655d53;
  --accent: #0f766e;
  --accent-strong: #115e59;
  --border: #dccfb8;
  --good: #1f7a52;
  --bad: #9b2c2c;
  --shadow: 0 14px 36px rgba(53, 41, 23, 0.12);
}

[data-theme="dark"] {
  --bg: #1b1814;
  --surface: #252018;
  --surface-alt: #2e271e;
  --ink: #f2ede4;
  --muted: #9e9080;
  --accent: #14b8a6;
  --accent-strong: #2dd4bf;
  --border: #3c342a;
  --good: #22c55e;
  --bad: #f87171;
  --shadow: 0 14px 36px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] body {
  background:
    radial-gradient(circle at top right, rgba(20, 184, 166, 0.07), transparent 26%),
    radial-gradient(circle at left 20%, rgba(120, 80, 20, 0.1), transparent 20%),
    var(--bg);
}

[data-theme="dark"] .site-header {
  background: rgba(22, 19, 15, 0.9);
  border-bottom-color: rgba(60, 52, 42, 0.8);
}

[data-theme="dark"] .panel,
[data-theme="dark"] .hero-card {
  background: rgba(37, 32, 24, 0.92);
}

[data-theme="dark"] .home-hero-shell {
  background: linear-gradient(180deg, rgba(37, 32, 24, 0.98), rgba(27, 24, 20, 0.9));
}

[data-theme="dark"] .scope-summary-panel {
  background: linear-gradient(180deg, rgba(37, 32, 24, 0.92), rgba(30, 26, 20, 0.94));
}

[data-theme="dark"] .scope-spotlight {
  background: linear-gradient(180deg, rgba(37, 32, 24, 0.92), rgba(30, 26, 20, 0.94));
}

[data-theme="dark"] .launch-panel {
  background: rgba(37, 32, 24, 0.88);
}

[data-theme="dark"] .summary-chip-card {
  background: rgba(46, 39, 30, 0.72);
  border-color: rgba(60, 52, 42, 0.92);
}

[data-theme="dark"] .tab {
  background: rgba(37, 32, 24, 0.6);
}

[data-theme="dark"] .pill-muted {
  background: rgba(46, 39, 30, 0.8);
}

[data-theme="dark"] .panel-lite span {
  background: rgba(37, 32, 24, 0.72);
}

[data-theme="dark"] input[type="text"],
[data-theme="dark"] select {
  background: var(--surface);
  color: var(--ink);
}

[data-theme="dark"] .option-row,
[data-theme="dark"] .matrix-row,
[data-theme="dark"] .arrange-item {
  background: var(--surface);
}

[data-theme="dark"] .review-option-row,
[data-theme="dark"] .review-matrix-row {
  background: var(--surface);
}

[data-theme="dark"] .review-option-row.is-correct,
[data-theme="dark"] .review-matrix-row.is-correct {
  background: rgba(34, 197, 94, 0.08);
  border-color: rgba(34, 197, 94, 0.3);
}

[data-theme="dark"] .review-option-row.is-selected-wrong,
[data-theme="dark"] .review-matrix-row.is-incorrect {
  background: rgba(248, 113, 113, 0.07);
  border-color: rgba(248, 113, 113, 0.28);
}

[data-theme="dark"] .review-inline-tag.selected {
  background: rgba(80, 180, 255, 0.12);
  color: #7dd3fc;
}

[data-theme="dark"] .progress-chart {
  background: linear-gradient(180deg, rgba(46, 39, 30, 0.72), rgba(30, 26, 20, 0.72));
}

[data-theme="dark"] .chart-grid-line {
  stroke: rgba(60, 52, 42, 0.85);
}

[data-theme="dark"] .chart-point {
  fill: #1b1814;
}

[data-theme="dark"] th,
[data-theme="dark"] td {
  border-bottom-color: rgba(60, 52, 42, 0.8);
}

* {
  box-sizing: border-box;
}

.hidden {
  display: none !important;
}

body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top right, rgba(15, 118, 110, 0.12), transparent 26%),
    radial-gradient(circle at left 20%, rgba(199, 143, 62, 0.18), transparent 20%),
    var(--bg);
}

a {
  color: inherit;
}

.shell {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: rgba(244, 241, 234, 0.88);
  border-bottom: 1px solid rgba(220, 207, 184, 0.8);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.brand {
  font-size: 1.2rem;
  font-weight: 700;
  text-decoration: none;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.top-nav a {
  text-decoration: none;
}

.user-chip {
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: var(--surface-alt);
  border: 1px solid var(--border);
}

.theme-toggle {
  padding: 0.35rem 0.6rem;
  border-radius: 999px;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  color: var(--ink);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  font-weight: 400;
}

.page-content {
  padding: 2rem 0 3rem;
}

.hero-card,
.two-column {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.panel,
.hero-card {
  background: rgba(255, 253, 248, 0.92);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 1.5rem;
  align-items: start;
}

.home-hero-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.85fr);
  gap: 1.25rem;
  padding: 1.5rem;
  background:
    linear-gradient(180deg, rgba(255, 253, 248, 0.98), rgba(245, 237, 224, 0.9));
}

.hero-copy {
  position: relative;
  z-index: 1;
}

.clean-hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0.5rem 0.25rem 0.5rem 0;
}

.hero-copy h1 {
  max-width: 12ch;
  font-size: clamp(2.4rem, 4vw, 3.8rem);
  line-height: 1;
  margin-bottom: 0.8rem;
}

.hero-subtitle {
  margin: 0 0 0.85rem;
  color: var(--accent-strong);
  font-weight: 700;
  max-width: 44rem;
}

.hero-copy .lede {
  max-width: 56ch;
  font-size: 1.04rem;
  margin-bottom: 1.25rem;
}

.hero-summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
}

.summary-chip-card {
  padding: 1rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(220, 207, 184, 0.92);
}

.summary-chip-card span {
  display: block;
  color: var(--muted);
  font-size: 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.summary-chip-card strong {
  display: block;
  margin: 0.45rem 0 0.4rem;
  font-size: 1.5rem;
  line-height: 1.1;
}

.summary-chip-card p {
  margin: 0;
  color: var(--muted);
}

.primary-summary {
  background: linear-gradient(180deg, rgba(15, 118, 110, 0.9), rgba(17, 94, 89, 0.92));
  border-color: transparent;
  color: #f7fffd;
}

.primary-summary span,
.primary-summary p {
  color: rgba(247, 255, 253, 0.82);
}

.launch-panel {
  padding: 1.4rem;
  background: rgba(255, 253, 248, 0.88);
}

.launch-panel-head h2 {
  margin-bottom: 0.2rem;
}

.clean-launch-panel {
  align-self: stretch;
}

.builder-actions {
  justify-content: flex-start;
  align-items: center;
}

.simulation-hint {
  margin-top: 0;
}

.launch-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}

.scope-spotlight-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.scope-summary-panel {
  margin-bottom: 1rem;
  background: linear-gradient(180deg, rgba(255, 253, 248, 0.92), rgba(244, 236, 223, 0.94));
}

.scope-summary-panel h3 {
  margin-bottom: 0.35rem;
}

.scope-spotlight {
  min-height: 14rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background:
    linear-gradient(180deg, rgba(255, 253, 248, 0.92), rgba(246, 239, 227, 0.94));
}

.scope-spotlight strong {
  display: block;
  margin: 0.4rem 0 0.8rem;
  font-size: 2.2rem;
  line-height: 1;
}

.progress-stat-grid {
  margin-bottom: 1rem;
}

.progress-panel {
  display: grid;
  gap: 1rem;
}

.progress-panel-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 1rem;
}

.progress-chart-wrap {
  display: grid;
  grid-template-columns: 3.5rem minmax(0, 1fr);
  gap: 0.75rem;
  align-items: stretch;
}

.progress-axis-labels {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.88rem;
  padding: 0.4rem 0 0.6rem;
}

.progress-chart {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(240, 231, 216, 0.72));
}

.chart-grid-line {
  stroke: rgba(220, 207, 184, 0.85);
  stroke-width: 1;
}

.chart-line {
  fill: none;
  stroke-width: 4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.score-line {
  stroke: #0f766e;
}

.rolling-line {
  stroke: #d97706;
}

.chart-point {
  fill: #fffdf8;
  stroke: #0f766e;
  stroke-width: 3;
}

.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.chart-legend span {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.legend-swatch {
  width: 1.5rem;
  height: 0.35rem;
  border-radius: 999px;
  display: inline-block;
}

.score-swatch {
  background: #0f766e;
}

.rolling-swatch {
  background: #d97706;
}

.simulation-panel {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 1.25rem;
}

.simulation-form {
  display: grid;
  gap: 0.75rem;
  min-width: 18rem;
}

.dashboard-launch-grid {
  align-items: end;
  margin-bottom: 0.75rem;
}

.panel {
  padding: 1.25rem;
}

.form-panel,
.module-card,
.stat-card,
.history-panel,
.table-panel,
.empty-state,
.question-card {
  animation: rise-in 0.45s ease both;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-strong);
  font-size: 0.78rem;
  margin: 0 0 0.5rem;
}

.eyebrow--simulation {
  color: #c0392b;
}

.eyebrow--practice {
  color: #27ae60;
}

h1,
h2,
h3 {
  margin-top: 0;
}

.lede,
.hint {
  color: var(--muted);
}

label {
  display: block;
  font-weight: 700;
  margin: 0.75rem 0 0.35rem;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin: 1rem 0;
  font-weight: 600;
}

.checkbox-row input[type="checkbox"] {
  accent-color: var(--accent);
}

.start-options-form,
.practice-launch-form {
  display: grid;
  gap: 0.75rem;
}

.launch-setting,
.compact-checkbox {
  margin: 0;
}

input[type="text"],
select {
  width: 100%;
  padding: 0.85rem 0.95rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--ink);
  font: inherit;
}

button,
.button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border-radius: 999px;
  padding: 0.85rem 1.2rem;
  border: 0;
  background: var(--accent);
  color: #f8fffe;
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}

button:disabled,
.button-secondary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.button-secondary {
  background: var(--surface-alt);
  color: var(--ink);
  border: 1px solid var(--border);
}

.button-small {
  padding: 0.45rem 0.75rem;
  font-size: 0.9rem;
}

.section-block {
  margin-top: 1.5rem;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 1rem;
  margin-bottom: 1rem;
}

.tab-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.tab {
  padding: 0.5rem 0.9rem;
  text-decoration: none;
  border-radius: 999px;
  background: rgba(255, 253, 248, 0.6);
  border: 1px solid var(--border);
}

.tab.active {
  background: var(--accent);
  color: #f8fffe;
}

.card-grid,
.stat-grid {
  display: grid;
  gap: 1rem;
}

.card-grid {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.stat-grid {
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.stat-card span {
  display: block;
  color: var(--muted);
}

.stat-card strong {
  display: block;
  margin-top: 0.4rem;
  font-size: 1.8rem;
}

.action-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
}

.compact-row {
  justify-content: flex-start;
}

.coverage-panel,
.practice-mode-grid {
  animation: rise-in 0.45s ease both;
}

.selected-scope {
  border-color: var(--accent);
  box-shadow: 0 16px 40px rgba(15, 118, 110, 0.18);
}

.pill-muted {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--border);
  background: rgba(240, 231, 216, 0.8);
  color: var(--muted);
  font-weight: 700;
}

.inline-link {
  color: var(--accent-strong);
}

.history-bars {
  min-height: 220px;
  display: flex;
  gap: 0.75rem;
  align-items: end;
}

.history-bar-group {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}

.history-bar {
  width: 100%;
  max-width: 32px;
  background: linear-gradient(180deg, #d97706 0%, #0f766e 100%);
  border-radius: 16px 16px 8px 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  text-align: left;
  padding: 0.8rem 0.6rem;
  border-bottom: 1px solid rgba(220, 207, 184, 0.8);
}

.attempt-form {
  display: grid;
  gap: 1rem;
}

.question-card.correct {
  border-left: 6px solid var(--good);
}

.question-card.incorrect {
  border-left: 6px solid var(--bad);
}

.question-meta {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.option-list,
.matrix-list,
.review-block {
  display: grid;
  gap: 0.75rem;
}

.option-row,
.matrix-row,
.arrange-item {
  display: flex;
  gap: 0.75rem;
  align-items: start;
  padding: 0.85rem;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
}

.matrix-row {
  justify-content: space-between;
}

.matrix-options {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.inline-code {
  font-family: "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.875em;
  padding: 0.13em 0.4em;
  border-radius: 6px;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  color: var(--ink);
  white-space: pre-wrap;
  word-break: break-word;
}

[data-theme="dark"] .inline-code {
  background: rgba(80, 230, 255, 0.08);
  border-color: rgba(80, 230, 255, 0.18);
  color: #c5f6ff;
}

.attempt-exam .inline-code {
  background: rgba(80, 230, 255, 0.08);
  border-color: rgba(80, 230, 255, 0.18);
  color: #c5f6ff;
}

.code-block,
.answer-box {
  overflow-x: auto;
  padding: 1rem;
  border-radius: 16px;
  background: #201d1a;
  color: #f7f0e6;
  font-family: "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.95rem;
  line-height: 1.5;
  tab-size: 4;
}

.code-block code {
  display: block;
  white-space: pre;
}

.code-highlight {
  text-shadow: none;
}

.code-highlight .hll {
  background: rgba(255, 255, 255, 0.06);
}

.code-highlight .err {
  border-radius: 4px;
}

.code-highlight .c,
.code-highlight .c1,
.code-highlight .cm,
.code-highlight .cp,
.code-highlight .cs {
  color: #7f8ea3;
  font-style: italic;
}

.code-highlight .k,
.code-highlight .kd,
.code-highlight .kn,
.code-highlight .kp,
.code-highlight .kr,
.code-highlight .kt,
.code-highlight .ow {
  color: #ff8f5e;
}

.code-highlight .n,
.code-highlight .nb,
.code-highlight .nc,
.code-highlight .nd,
.code-highlight .ne,
.code-highlight .nf,
.code-highlight .nn,
.code-highlight .nt,
.code-highlight .nv {
  color: #dbe7f5;
}

.code-highlight .na,
.code-highlight .fm {
  color: #7dd3fc;
}

.code-highlight .s,
.code-highlight .s1,
.code-highlight .s2,
.code-highlight .sa,
.code-highlight .sb,
.code-highlight .sc,
.code-highlight .sd,
.code-highlight .se,
.code-highlight .sh,
.code-highlight .si,
.code-highlight .sr,
.code-highlight .ss,
.code-highlight .sx {
  color: #a5e075;
}

.code-highlight .m,
.code-highlight .mb,
.code-highlight .mf,
.code-highlight .mh,
.code-highlight .mi,
.code-highlight .mo {
  color: #ffd166;
}

.code-highlight .o {
  color: #f7c66a;
}

.code-highlight .p {
  color: #b8c6d9;
}

.arrange-list {
  margin: 0;
  padding-left: 1.4rem;
  display: grid;
  gap: 0.75rem;
}

.arrange-item {
  cursor: grab;
  justify-content: space-between;
}

.arrange-item:active {
  cursor: grabbing;
}

.arrange-actions {
  display: flex;
  gap: 0.4rem;
}

.arrange-icon-button {
  min-width: 2.2rem;
  padding: 0.45rem;
  font-size: 1rem;
  line-height: 1;
}

.submit-row {
  position: sticky;
  bottom: 1rem;
  display: flex;
  justify-content: center;
}

.arrange-bank-item.is-locked,
.arrange-item.is-locked {
  opacity: 0.78;
  cursor: default;
}

.status-pill {
  border-radius: 999px;
  padding: 0.25rem 0.7rem;
  font-weight: 700;
}

.status-pill.correct {
  background: rgba(31, 122, 82, 0.12);
  color: var(--good);
}

.status-pill.incorrect {
  background: rgba(155, 44, 44, 0.12);
  color: var(--bad);
}

.audit-list {
  margin: 0;
  padding-left: 1.1rem;
}

.answer-box-muted {
  color: #d9d1c7;
}

.review-answer-list {
  margin: 0;
  padding-left: 1.25rem;
  display: grid;
  gap: 0.45rem;
}

.review-correct-list {
  color: var(--good);
}

.review-support-copy {
  margin: 0;
  color: var(--muted);
}

.review-option-list,
.review-matrix-list {
  display: grid;
  gap: 0.75rem;
}

.review-option-row,
.review-matrix-row {
  display: grid;
  gap: 0.55rem;
  padding: 0.85rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: #fff;
}

.review-option-row.is-correct,
.review-matrix-row.is-correct {
  border-color: rgba(31, 122, 82, 0.38);
  background: rgba(31, 122, 82, 0.06);
}

.review-option-row.is-selected-wrong,
.review-matrix-row.is-incorrect {
  border-color: rgba(155, 44, 44, 0.32);
  background: rgba(155, 44, 44, 0.05);
}

.review-option-text {
  color: var(--ink);
}

.review-option-tags,
.review-matrix-values {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.review-inline-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.22rem 0.6rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
}

.review-inline-tag.selected {
  background: rgba(0, 120, 212, 0.1);
  color: #005a9e;
}

.review-inline-tag.correct {
  background: rgba(31, 122, 82, 0.12);
  color: var(--good);
}

.attempt-page {
  display: grid;
  gap: 1.5rem;
}

.attempt-hero {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 1rem;
}

.panel-lite {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.panel-lite span {
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: rgba(255, 253, 248, 0.72);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}

.attempt-shell {
  display: grid;
  gap: 1.25rem;
  align-items: start;
}

.attempt-shell.review-open {
  grid-template-columns: minmax(0, 1fr) 340px;
}

.attempt-exam {
  padding: 0;
  overflow: hidden;
  background: #141b22;
  border-color: #293341;
  color: #eef4ff;
  box-shadow: 0 28px 60px rgba(8, 14, 22, 0.38);
}

.exam-header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.15rem 1.5rem;
  background: #1c2532;
  border-bottom: 1px solid #2c394a;
}

.exam-progress-block {
  flex: 1;
}

.attempt-exam .progress-text {
  display: block;
  margin-bottom: 0.55rem;
  color: #b8c4d6;
  font-size: 0.92rem;
}

.progress-bar {
  height: 8px;
  max-width: 340px;
  border-radius: 999px;
  overflow: hidden;
  background: #334155;
}

.progress-fill {
  width: 0;
  height: 100%;
  background: linear-gradient(135deg, #0078d4 0%, #50e6ff 100%);
  transition: width 0.24s ease;
}

.exam-meta-chip {
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  background: rgba(80, 230, 255, 0.1);
  border: 1px solid rgba(80, 230, 255, 0.18);
  color: #c5f6ff;
  font-size: 0.9rem;
}

.exam-chip-stack {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.flag-chip {
  min-width: 2.8rem;
  justify-content: center;
  padding: 0.55rem 0.8rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(80, 230, 255, 0.18);
  color: #c5f6ff;
}

.flag-chip.active-utility {
  background: rgba(245, 158, 11, 0.16);
  border-color: rgba(245, 158, 11, 0.45);
  color: #ffd28c;
}

.timer-chip {
  background: rgba(245, 158, 11, 0.14);
  border-color: rgba(245, 158, 11, 0.4);
  color: #ffd28c;
}

.question-stage {
  padding: 2rem;
}

.question-panel {
  display: none;
}

.question-panel.active {
  display: block;
}

.attempt-exam .question-meta {
  color: #93a5be;
  margin-bottom: 1rem;
}

.question-title {
  font-size: 1rem;
  line-height: 1.5;
  margin-bottom: 1.6rem;
  color: #f4f8ff;
}

.attempt-exam .hint,
.attempt-exam .question-unit {
  color: #93a5be;
}

.option-card {
  background: #1c2532;
  border: 1px solid #334155;
  color: #eef4ff;
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.option-card:hover {
  border-color: #0078d4;
  background: rgba(0, 120, 212, 0.08);
  transform: translateY(-1px);
}

.option-row {
  align-items: center;
}

.option-row input[type="radio"],
.option-row input[type="checkbox"],
.binary-option input[type="radio"] {
  accent-color: #0078d4;
}

.option-copy {
  display: flex;
  gap: 0.9rem;
  align-items: center;
  font-weight: 500;
  flex: 1;
}

.option-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 2rem;
  border-radius: 999px;
  background: rgba(0, 120, 212, 0.12);
  color: #7fdaf0;
  font-size: 0.9rem;
}

.matrix-row {
  justify-content: space-between;
  align-items: center;
}

.matrix-statement {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
  max-width: 70%;
}

.matrix-options {
  gap: 0.75rem;
}

.binary-option {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin: 0;
  padding: 0.6rem 0.9rem;
  border-radius: 999px;
  background: #253041;
  border: 1px solid #3a4b63;
  color: #dbe7f5;
}

.review-marker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.6rem;
  height: 1.6rem;
  margin-left: auto;
  border-radius: 50%;
  font-size: 0.95rem;
  font-weight: 800;
  line-height: 1;
  flex: 0 0 auto;
  border: 1px solid transparent;
}

.review-marker.correct {
  background: rgba(16, 185, 129, 0.20);
  border-color: rgba(52, 211, 153, 0.50);
  color: #6ee7b7;
  box-shadow: 0 0 0 1px rgba(16, 185, 129, 0.15);
}

.review-marker.incorrect {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.40);
  color: #fca5a5;
}

.option-row.is-correct-selection,
.binary-option.is-correct-selection,
.arrange-item.is-correct-selection {
  border-color: rgba(16, 185, 129, 0.7);
  box-shadow: inset 0 0 0 1px rgba(16, 185, 129, 0.28);
}

.option-row.is-incorrect-selection,
.binary-option.is-incorrect-selection,
.arrange-item.is-incorrect-selection {
  border-color: rgba(239, 68, 68, 0.7);
  box-shadow: inset 0 0 0 1px rgba(239, 68, 68, 0.28);
}

.attempt-exam .code-block,
.attempt-exam .answer-box {
  background: #0e141d;
  color: #dbe7f5;
  border: 1px solid #293341;
}

.attempt-exam .arrange-list {
  padding-left: 0;
  list-style: none;
}

.arrange-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.arrange-column {
  display: grid;
  gap: 0.75rem;
}

.arrange-heading {
  margin: 0;
  font-size: 1rem;
  color: #dbe7f5;
}

.arrange-bank,
.arrange-answer-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.75rem;
}

.arrange-bank {
  min-height: 14rem;
  align-content: start;
}

.arrange-bank-item {
  cursor: grab;
}

.arrange-key-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.6rem;
  height: 1.6rem;
  padding: 0 0.3rem;
  margin-right: 0.55rem;
  border-radius: 0.4rem;
  background: rgba(0, 120, 212, 0.18);
  border: 1px solid rgba(80, 150, 255, 0.28);
  color: #7eb8ff;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  font-family: monospace;
  flex-shrink: 0;
  vertical-align: middle;
}

.explanation-steps-list {
  margin: 0 0 0.9rem 1.25rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.explanation-steps-list li {
  line-height: 1.55;
}

.explanation-distractor-note {
  color: #93a5be;
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

.arrange-bank-item:active {
  cursor: grabbing;
}

.arrange-answer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.arrange-counter {
  color: #93a5be;
  font-size: 0.9rem;
}

.arrange-answer-dropzone {
  min-height: 14rem;
  padding: 0.9rem;
  border: 1px dashed #3a4b63;
  border-radius: 1rem;
  background: rgba(15, 23, 34, 0.55);
}

.arrange-answer-dropzone.is-drag-over {
  border-color: #50e6ff;
  background: rgba(0, 120, 212, 0.12);
}

.arrange-empty-state {
  display: grid;
  place-items: center;
  min-height: 12rem;
  color: #93a5be;
  border-radius: 0.8rem;
  background: rgba(28, 37, 50, 0.55);
}

.exam-navigation-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  border-top: 1px solid #2c394a;
}

.nav-button {
  min-width: 140px;
}

.nav-center-copy {
  color: #93a5be;
  text-align: center;
  font-size: 0.92rem;
}

.nav-center-actions {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  justify-content: center;
}

.utility-button {
  background: #253041;
  border: 1px solid #3a4b63;
  color: #dbe7f5;
}

.utility-button.active-utility {
  background: rgba(245, 158, 11, 0.16);
  border-color: rgba(245, 158, 11, 0.45);
  color: #ffd28c;
}

.question-navigator {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  padding: 1rem 1.5rem;
  background: #1c2532;
  border-top: 1px solid #2c394a;
}

.nav-dot {
  width: 2.35rem;
  height: 2.35rem;
  padding: 0;
  border-radius: 0.75rem;
  background: #0f1722;
  border: 1px solid #334155;
  color: #9fb0c8;
}

.nav-dot.current {
  background: #0078d4;
  border-color: #0078d4;
  color: #fff;
}

.nav-dot.answered {
  border-color: #50e6ff;
  color: #c5f6ff;
}

.nav-dot.flagged {
  box-shadow: inset 0 0 0 1px rgba(245, 158, 11, 0.7);
  color: #ffd28c;
}

.nav-dot.checked {
  background: rgba(16, 185, 129, 0.12);
  border-color: rgba(16, 185, 129, 0.5);
  color: #86efac;
}

.exam-submit-row {
  position: static;
  padding: 1.25rem 1.5rem 1.5rem;
  justify-content: flex-end;
  border-top: 1px solid #2c394a;
  background: #141b22;
}

.practice-review-panel {
  margin: 0 1.5rem 1.5rem;
  padding: 1.25rem;
  border-radius: 1rem;
  border: 1px solid #334155;
  background: #1b2431;
  display: grid;
  gap: 0.75rem;
}

.practice-review-panel .review-block {
  gap: 0.3rem;
}

.review-answer-copy,
.practice-review-panel .review-block p,
.practice-review-panel .review-block h4,
.practice-review-panel .review-block li {
  color: #dbe7f5;
}

.practice-review-panel .review-block h4,
.practice-review-panel .review-block p {
  margin: 0;
}

.review-sidebar {
  display: none;
  position: sticky;
  top: 1.5rem;
  padding: 1.25rem;
  border-color: #293341;
  background: #141b22;
  color: #eef4ff;
  box-shadow: 0 24px 48px rgba(8, 14, 22, 0.28);
}

.attempt-shell.review-open .review-sidebar {
  display: grid;
  gap: 1rem;
}

.review-sidebar.hidden {
  display: none;
}

.review-sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 1rem;
}

.review-sidebar-header h3 {
  margin: 0.2rem 0 0;
  color: #f4f8ff;
}

.review-close-button {
  flex: 0 0 auto;
}

.review-summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.review-summary-card {
  display: grid;
  gap: 0.25rem;
  padding: 0.8rem;
  border-radius: 0.9rem;
  background: #1c2532;
  border: 1px solid #334155;
}

.review-summary-label {
  color: #93a5be;
  font-size: 0.82rem;
}

.review-summary-card strong {
  font-size: 1.2rem;
  color: #f4f8ff;
}

.review-question-list {
  display: grid;
  gap: 0.75rem;
  max-height: 65vh;
  overflow-y: auto;
  padding-right: 0.2rem;
}

.review-question-card {
  display: grid;
  gap: 0.65rem;
  width: 100%;
  padding: 0.95rem;
  text-align: left;
  border-radius: 1rem;
  border: 1px solid #334155;
  background: #1c2532;
  color: #eef4ff;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.review-question-card:hover {
  border-color: #0078d4;
  background: rgba(0, 120, 212, 0.08);
  transform: translateY(-1px);
}

.review-question-card.current {
  border-color: #50e6ff;
  box-shadow: inset 0 0 0 1px rgba(80, 230, 255, 0.24);
}

.review-question-card.flagged {
  box-shadow: inset 0 0 0 1px rgba(245, 158, 11, 0.32);
}

.review-question-card.checked {
  background: rgba(16, 185, 129, 0.08);
}

.review-card-topline {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 0.75rem;
}

.review-card-number {
  color: #c5d3e5;
  font-size: 0.9rem;
  font-weight: 700;
}

.review-card-statuses {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.4rem;
}

.review-status-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.22rem 0.55rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
}

.review-status-answer.is-answered {
  background: rgba(16, 185, 129, 0.16);
  border-color: rgba(52, 211, 153, 0.35);
  color: #b7f7d1;
}

.review-status-answer.is-skipped {
  background: rgba(148, 163, 184, 0.12);
  border-color: rgba(148, 163, 184, 0.24);
  color: #d3dce8;
}

.review-status-flag {
  background: rgba(245, 158, 11, 0.16);
  border-color: rgba(245, 158, 11, 0.35);
  color: #ffd28c;
}

.review-card-preview {
  margin: 0;
  color: #dbe7f5;
  line-height: 1.45;
}

.review-mini-list {
  margin: 0;
  padding-left: 1.1rem;
}

.review-mini-list.ordered {
  padding-left: 1.4rem;
}

.review-empty {
  color: #93a5be;
}

.option-row.is-selected,
.binary-option.is-selected {
  border-color: #0078d4;
  background: rgba(0, 120, 212, 0.12);
}

.option-card.is-locked,
.binary-option.is-locked {
  opacity: 0.88;
}

.arrange-bank-item.is-locked,
.arrange-item.is-locked {
  opacity: 0.78;
}

.button-tertiary {
  background: #3a2431;
  border: 1px solid #5a3247;
  color: #ffd7e5;
}

.button-small:disabled,
.utility-button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

@media (max-width: 860px) {
  .home-hero-shell,
  .hero-card,
  .two-column {
    grid-template-columns: 1fr;
  }

  .hero-summary-grid,
  .scope-spotlight-grid,
  .launch-grid {
    grid-template-columns: 1fr;
  }

  .progress-panel-head,
  .simulation-panel,
  .progress-chart-wrap,
  .exam-chip-stack {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: start;
  }

  .simulation-form {
    min-width: 0;
    width: 100%;
  }

  .hero-copy h1 {
    max-width: none;
  }

  .section-head,
  .question-meta,
  .matrix-row,
  .action-row {
    align-items: start;
    flex-direction: column;
  }

  .history-bars {
    min-height: 160px;
  }

  .attempt-shell.review-open {
    grid-template-columns: 1fr;
  }

  .attempt-hero,
  .exam-header-bar,
  .exam-navigation-bar,
  .matrix-row,
  .practice-review-header,
  .nav-center-actions,
  .review-sidebar-header,
  .review-card-topline {
    flex-direction: column;
    align-items: start;
  }

  .arrange-layout {
    grid-template-columns: 1fr;
  }

  .arrange-answer-header {
    align-items: start;
    flex-direction: column;
  }

  .matrix-statement {
    max-width: 100%;
  }

  .question-stage,
  .exam-header-bar,
  .exam-navigation-bar,
  .question-navigator,
  .exam-submit-row,
  .practice-review-panel,
  .review-sidebar {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .review-sidebar {
    position: static;
  }

  .review-summary-grid {
    grid-template-columns: 1fr;
  }

  .review-question-list {
    max-height: none;
  }

  .nav-button {
    width: 100%;
  }

  .checkbox-row {
    align-items: flex-start;
  }

  .nav-center-copy {
    text-align: left;
  }
}

/* ── Auth pages ─────────────────────────────────────────── */

.auth-shell {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 2.5rem 1rem;
}

.auth-panel {
  width: 100%;
  max-width: 420px;
  padding: 2rem 2rem 1.75rem;
}

.auth-heading {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0.25rem 0 0.4rem;
  color: var(--color-text);
}

.auth-sub {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 1rem;
}

.auth-form label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-top: 0.75rem;
}

.auth-form input {
  margin-top: 0.25rem;
}

.auth-submit {
  margin-top: 1.25rem;
  width: 100%;
}

.pin-input {
  letter-spacing: 0.3em;
  font-size: 1.4rem;
  text-align: center;
  font-family: var(--font-mono, monospace);
}

.auth-resend-form {
  margin-bottom: 0.75rem;
}

.auth-resend-btn {
  width: 100%;
}

.auth-switch {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 1rem;
}

.auth-switch a {
  color: var(--accent);
}

/* Flash messages */

.flash-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.flash-item {
  padding: 0.6rem 0.85rem;
  border-radius: 6px;
  font-size: 0.88rem;
  border: 1px solid transparent;
}

.flash-error {
  background: #fef2f2;
  color: #b91c1c;
  border-color: #fecaca;
}

.flash-success {
  background: #f0fdf4;
  color: #166534;
  border-color: #bbf7d0;
}

.flash-info {
  background: #eff6ff;
  color: #1d4ed8;
  border-color: #bfdbfe;
}

.flash-warning {
  background: #fffbeb;
  color: #92400e;
  border-color: #fde68a;
}

[data-theme="dark"] .flash-error   { background: #3b0a0a; color: #fca5a5; border-color: #7f1d1d; }
[data-theme="dark"] .flash-success { background: #052e16; color: #86efac; border-color: #14532d; }
[data-theme="dark"] .flash-info    { background: #0c1a4a; color: #93c5fd; border-color: #1e3a8a; }
[data-theme="dark"] .flash-warning { background: #3a1c02; color: #fcd34d; border-color: #78350f; }

/* Auth gate on home page */

.auth-gate-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.auth-gate-copy {
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.4rem;
  border-radius: 6px;
  font-size: 0.925rem;
  font-weight: 600;
  text-decoration: none;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  transition: opacity 0.15s;
}

.button-link:hover { opacity: 0.88; }

.button-link.button-secondary {
  background: var(--color-surface-alt);
  color: var(--color-text);
}

/* Nav auth links */

.nav-auth-link {
  font-size: 0.85rem;
  font-weight: 600;
}

.nav-auth-register {
  padding: 0.25rem 0.7rem;
  border-radius: 5px;
  background: var(--accent);
  color: #fff !important;
  text-decoration: none;
}

.nav-auth-register:hover { opacity: 0.88; }