/* ==========================================================================
   Savers Club Financial Hub — static site stylesheet

   Design tokens are carried over from the application's own theme
   (frontend/src/assets/main.css), which in turn came from the client-approved
   mock-up. Two deliberate adjustments for contrast on a public marketing page:

     --text-muted   app uses #898781 (3.4:1 on white — fails WCAG AA for body
                    text). Darkened to #6b6a65 (4.95:1).
     --accent-strong new. #2a78d6 under white text is 4.47:1, just short of AA,
                    so interactive surfaces use #1f66bd (5.69:1). The brand mark
                    keeps the exact original gradient.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Tokens
   -------------------------------------------------------------------------- */

:root {
  --page: #f3f4f6;
  --surface: #ffffff;
  --surface-sunken: #f8f9fa;
  --text-primary: #0b0b0b;
  --text-secondary: #52514e;
  --text-muted: #6b6a65;
  --border: rgba(11, 11, 11, 0.1);
  --border-strong: rgba(11, 11, 11, 0.16);

  --accent: #2a78d6;
  --accent-strong: #1f66bd;
  --accent-dark: #123a66;
  --accent-tint: rgba(42, 120, 214, 0.08);

  --ink: #0d1b2e;
  --ink-text: #b9c2d0;
  --ink-text-muted: #8b98ab;

  --status-good: #0ca30c;
  --status-warning: #fab219;
  --status-serious: #ec835a;
  --status-critical: #d03b3b;

  --shadow-card: 0 1px 2px rgba(16, 24, 40, 0.04), 0 1px 3px rgba(16, 24, 40, 0.06);
  --shadow-panel: 0 12px 32px -12px rgba(16, 24, 40, 0.22), 0 2px 6px rgba(16, 24, 40, 0.06);

  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;

  --container: 1140px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --section-y: clamp(3.75rem, 8vw, 6.5rem);

  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface: #17171a;
    --surface-sunken: #121215;
    --text-primary: #ffffff;
    --text-secondary: #c3c2b7;
    --text-muted: #9a9a94;
    --border: rgba(255, 255, 255, 0.1);
    --border-strong: rgba(255, 255, 255, 0.17);
    --accent: #3987e5;
    --accent-strong: #3987e5;
    --accent-tint: rgba(57, 135, 229, 0.12);
    --ink: #0a1220;
    --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-panel: 0 12px 32px -12px rgba(0, 0, 0, 0.7), 0 2px 6px rgba(0, 0, 0, 0.3);
  }
}

:root[data-theme='dark'] {
  color-scheme: dark;
  --page: #0d0d0d;
  --surface: #17171a;
  --surface-sunken: #121215;
  --text-primary: #ffffff;
  --text-secondary: #c3c2b7;
  --text-muted: #9a9a94;
  --border: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.17);
  --accent: #3987e5;
  --accent-strong: #3987e5;
  --accent-tint: rgba(57, 135, 229, 0.12);
  --ink: #0a1220;
  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-panel: 0 12px 32px -12px rgba(0, 0, 0, 0.7), 0 2px 6px rgba(0, 0, 0, 0.3);
}

/* --------------------------------------------------------------------------
   2. Base
   -------------------------------------------------------------------------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
  /* +25% base size — every rem-based font-size (and most spacing) on the site scales from here. */
  font-size: 125%;
}

body {
  min-height: 100vh;
  background: var(--page);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--accent-strong);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

button {
  font: inherit;
  color: inherit;
}

h1,
h2,
h3,
h4 {
  line-height: 1.15;
  letter-spacing: -0.021em;
  font-weight: 700;
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

:focus-visible {
  outline: 2px solid var(--accent-strong);
  outline-offset: 3px;
  border-radius: 3px;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* --------------------------------------------------------------------------
   3. Layout primitives
   -------------------------------------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: var(--section-y);
  border-top: 1px solid var(--border);
}

.section--flush {
  border-top: 0;
  padding-top: 0;
}

.skip-link {
  position: absolute;
  left: 0.5rem;
  top: -4rem;
  z-index: 100;
  padding: 0.6rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: top 0.15s ease;
}

.skip-link:focus {
  top: 0.5rem;
}

/* --------------------------------------------------------------------------
   4. Type
   -------------------------------------------------------------------------- */

.eyebrow {
  display: block;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.display {
  font-size: clamp(2.1rem, 1.35rem + 3.15vw, 3.35rem);
  line-height: 1.05;
  letter-spacing: -0.032em;
  font-weight: 800;
}

.section-title {
  font-size: clamp(1.55rem, 1.24rem + 1.3vw, 2.1rem);
  letter-spacing: -0.026em;
}

.lead {
  font-size: clamp(1.03rem, 0.99rem + 0.2vw, 1.13rem);
  line-height: 1.6;
  color: var(--text-secondary);
}

.section-intro {
  max-width: 46rem;
  margin-top: 0.9rem;
  color: var(--text-secondary);
  font-size: 1rem;
}

.section-head {
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

/* --------------------------------------------------------------------------
   5. Brand mark
   -------------------------------------------------------------------------- */

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  color: inherit;
}

.brand__mark {
  display: block;
  flex: none;
  width: 2.375rem;
  height: 2.375rem;
  border-radius: 50%;
  object-fit: cover;
}

.brand__name {
  font-size: 0.9375rem;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.015em;
}

.brand__sub {
  font-size: 0.6875rem;
  line-height: 1.2;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   6. Buttons
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0.625rem 1.15rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color 0.15s ease,
    border-color 0.15s ease,
    color 0.15s ease;
}

.btn--primary {
  background: var(--accent-strong);
  color: #fff;
}

.btn--primary:hover {
  background: var(--accent-dark);
}

.btn--secondary {
  background: var(--surface);
  border-color: var(--border-strong);
  color: var(--text-primary);
}

.btn--secondary:hover {
  border-color: var(--text-muted);
}

.btn--on-ink {
  background: #fff;
  color: var(--ink);
}

.btn--on-ink:hover {
  background: #e8edf5;
}

.btn--ghost-on-ink {
  border-color: rgba(255, 255, 255, 0.3);
  color: #fff;
}

.btn--ghost-on-ink:hover {
  border-color: rgba(255, 255, 255, 0.6);
}

.btn--sm {
  min-height: 2.25rem;
  padding: 0.375rem 0.85rem;
  font-size: 0.875rem;
}

.btn[aria-disabled='true'],
.btn:disabled {
  background: var(--surface-sunken);
  border-color: var(--border);
  color: var(--text-muted);
  cursor: not-allowed;
}

.btn[aria-disabled='true']:hover,
.btn:disabled:hover {
  background: var(--surface-sunken);
  border-color: var(--border);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

/* --------------------------------------------------------------------------
   7. Chips / badges
   -------------------------------------------------------------------------- */

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.1875rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--text-secondary);
  white-space: nowrap;
}

.chip__dot {
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 50%;
  flex: none;
}

.chip--available .chip__dot {
  background: var(--status-good);
}

.chip--in-development .chip__dot {
  background: var(--status-warning);
}

.chip--planned .chip__dot {
  background: var(--text-muted);
}

/* --------------------------------------------------------------------------
   8. Site header
   -------------------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--page) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 4rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: auto;
}

.site-nav__link {
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.15s ease, background-color 0.15s ease;
}

.site-nav__link:hover {
  color: var(--text-primary);
  background: var(--accent-tint);
}

.site-nav__link[aria-current='page'] {
  color: var(--text-primary);
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: 0.75rem;
  padding-left: 0.75rem;
  border-left: 1px solid var(--border);
}

.icon-btn {
  display: grid;
  place-items: center;
  flex: none;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text-secondary);
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.icon-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.nav-toggle {
  display: none;
}

/* Mobile navigation */
@media (max-width: 56rem) {
  .nav-toggle {
    display: grid;
    margin-left: auto;
  }

  .site-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin: 0;
    padding: 0.5rem var(--gutter) 1rem;
    background: var(--page);
    border-bottom: 1px solid var(--border);
  }

  .site-nav[data-open='true'] {
    display: flex;
  }

  .site-nav__link {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
    font-size: 1rem;
  }

  .header-actions {
    margin: 0.875rem 0 0;
    padding: 0;
    border: 0;
  }

  .header-actions .btn {
    flex: 1;
  }
}

/* --------------------------------------------------------------------------
   9. Hero
   -------------------------------------------------------------------------- */

.hero {
  padding-block: clamp(3rem, 7vw, 5.5rem) clamp(3rem, 6vw, 4.5rem);
}

.hero__grid {
  display: grid;
  gap: clamp(2.5rem, 5vw, 3.5rem);
  align-items: center;
}

@media (min-width: 62rem) {
  .hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.06fr);
    gap: 3.5rem;
  }
}

.hero__copy {
  max-width: 34rem;
}

.hero__lead {
  margin-top: 1.25rem;
}

.hero__actions {
  margin-top: 1.75rem;
}

.hero__note {
  margin-top: 1rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  margin-top: 2.25rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.hero__meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.hero__meta-item svg {
  flex: none;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   10. Product preview panel (static rendering of the real dashboard UI)
   -------------------------------------------------------------------------- */

.preview {
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow-panel);
}

.preview__chrome {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 0.875rem;
  background: var(--ink);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.preview__dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
}

.preview__title {
  margin-left: 0.375rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--ink-text);
}

.preview__tag {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-text-muted);
}

.preview__body {
  padding: 1.125rem;
  background: var(--page);
}

.preview__kpis {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.625rem;
}

.kpi {
  padding: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.kpi__label {
  font-size: 0.625rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.01em;
}

.kpi__value {
  margin-top: 0.25rem;
  font-size: clamp(0.95rem, 0.82rem + 0.5vw, 1.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.kpi__value--critical {
  color: var(--status-critical);
}

.preview__chart {
  margin-top: 0.625rem;
  padding: 0.875rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.preview__chart-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.875rem;
}

.preview__chart-title {
  font-size: 0.75rem;
  font-weight: 700;
}

.preview__chart-note {
  font-size: 0.625rem;
  color: var(--text-muted);
}

.bars {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0.5rem;
  align-items: end;
  height: 5.5rem;
}

.bars__col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.375rem;
  height: 100%;
  justify-content: flex-end;
}

.bars__bar {
  width: 100%;
  max-width: 2rem;
  border-radius: 3px 3px 0 0;
  background: var(--accent);
  opacity: 0.85;
}

.bars__col:last-child .bars__bar {
  opacity: 1;
}

.bars__label {
  font-size: 0.5625rem;
  color: var(--text-muted);
}

.preview__rows {
  margin-top: 0.625rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.preview__row {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem 0.875rem;
  font-size: 0.6875rem;
  border-bottom: 1px solid var(--border);
}

.preview__row:last-child {
  border-bottom: 0;
}

.preview__row-name {
  font-weight: 600;
}

.preview__row-meta {
  color: var(--text-muted);
}

.preview__row-amount {
  margin-left: auto;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.status-pill {
  padding: 0.0625rem 0.375rem;
  border-radius: 999px;
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.status-pill--good {
  background: rgba(12, 163, 12, 0.12);
  color: #0a7d0a;
}

.status-pill--warning {
  background: rgba(250, 178, 25, 0.16);
  color: #8a6000;
}

:root[data-theme='dark'] .status-pill--good {
  color: #4cc44c;
}

:root[data-theme='dark'] .status-pill--warning {
  color: #e0a63a;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) .status-pill--good {
    color: #4cc44c;
  }
  :root:not([data-theme='light']) .status-pill--warning {
    color: #e0a63a;
  }
}

.preview__caption {
  margin-top: 0.75rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
}

/* --------------------------------------------------------------------------
   11. Before / after
   -------------------------------------------------------------------------- */

.shift {
  display: grid;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
}

.shift__row {
  display: grid;
  gap: 0.5rem 1.5rem;
  padding: 1.25rem clamp(1rem, 3vw, 1.75rem);
  border-bottom: 1px solid var(--border);
}

.shift__row:last-child {
  border-bottom: 0;
}

@media (min-width: 48rem) {
  .shift__row {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }
}

.shift__before,
.shift__after {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  font-size: 0.9375rem;
}

.shift__before {
  color: var(--text-muted);
}

.shift__after {
  color: var(--text-primary);
  font-weight: 500;
}

.shift__icon {
  flex: none;
  margin-top: 0.25rem;
}

.shift__before .shift__icon {
  color: var(--text-muted);
}

.shift__after .shift__icon {
  color: var(--status-good);
}

/* --------------------------------------------------------------------------
   12. Capability grid — hairline grid, not floating cards
   -------------------------------------------------------------------------- */

.capabilities {
  display: grid;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

@media (min-width: 40rem) {
  .capabilities {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 64rem) {
  .capabilities {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.capability {
  padding: clamp(1.25rem, 2.5vw, 1.6rem);
  background: var(--surface);
}

.capability__top {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  margin-bottom: 0.875rem;
}

.capability__icon {
  display: grid;
  place-items: center;
  flex: none;
  width: 2rem;
  height: 2rem;
  border-radius: 8px;
  background: var(--accent-tint);
  color: var(--accent-strong);
}

.capability__name {
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: -0.012em;
}

.capability__summary {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.capability__status {
  margin-top: 0.875rem;
}

/* --------------------------------------------------------------------------
   13. Workflow
   -------------------------------------------------------------------------- */

.steps {
  display: grid;
  gap: 0;
  counter-reset: step;
}

@media (min-width: 60rem) {
  .steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.step {
  position: relative;
  padding: 1.5rem 0 1.5rem 3.25rem;
  border-top: 1px solid var(--border);
}

@media (min-width: 60rem) {
  .step {
    padding: 2rem 1.5rem 0 0;
  }
}

.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1.5rem;
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  background: var(--surface);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-strong);
}

@media (min-width: 60rem) {
  .step::before {
    top: -1.125rem;
    left: 0;
  }
}

.step__title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.015em;
}

.step__body {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   14. Formula cards (real content from the Calculations reference)
   -------------------------------------------------------------------------- */

.formula-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 48rem) {
  .formula-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.formula {
  display: flex;
  flex-direction: column;
  padding: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.formula__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.625rem;
}

.formula__name {
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: -0.012em;
}

.formula__abbr {
  flex: none;
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
  background: var(--accent-tint);
  color: var(--accent-strong);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
}

.formula__definition {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.formula__expr {
  margin-top: 1rem;
  padding: 0.75rem;
  background: var(--surface-sunken);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.7;
  color: var(--text-primary);
  overflow-x: auto;
}

/* --------------------------------------------------------------------------
   15. Roles
   -------------------------------------------------------------------------- */

.roles {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
}

.role {
  display: grid;
  gap: 0.25rem 2rem;
  padding: 1.125rem clamp(1rem, 3vw, 1.75rem);
  border-bottom: 1px solid var(--border);
}

.role:last-child {
  border-bottom: 0;
}

@media (min-width: 44rem) {
  .role {
    grid-template-columns: 11rem minmax(0, 1fr);
    align-items: baseline;
  }
}

.role__name {
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: -0.012em;
}

.role__scope {
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   16. Closing CTA
   -------------------------------------------------------------------------- */

.cta {
  padding-block: clamp(3rem, 6vw, 4.75rem);
  background: var(--ink);
  color: #fff;
}

.cta__inner {
  max-width: 40rem;
}

.cta__title {
  font-size: clamp(1.5rem, 1.2rem + 1.3vw, 2.05rem);
  letter-spacing: -0.026em;
  color: #fff;
}

.cta__body {
  margin-top: 0.875rem;
  color: var(--ink-text);
  font-size: 1rem;
}

.cta__actions {
  margin-top: 1.75rem;
}

.cta__note {
  margin-top: 1rem;
  font-size: 0.8125rem;
  color: var(--ink-text-muted);
}

/* --------------------------------------------------------------------------
   17. Footer
   -------------------------------------------------------------------------- */

.site-footer {
  padding-block: clamp(2.5rem, 5vw, 3.5rem);
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.site-footer__grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 48rem) {
  .site-footer__grid {
    grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr));
    gap: 3rem;
  }
}

.site-footer__blurb {
  margin-top: 0.875rem;
  max-width: 24rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.footer-heading {
  font-size: 0.6875rem;
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.875rem;
}

.footer-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0.625rem;
}

.footer-list a,
.footer-list span {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-decoration: none;
}

.footer-list a:hover {
  color: var(--text-primary);
  text-decoration: underline;
}

.footer-list span {
  color: var(--text-muted);
}

.site-footer__base {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  align-items: center;
  justify-content: space-between;
  margin-top: clamp(2rem, 4vw, 3rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   18. Auth page — mirrors the application's sign-in screen (LoginView.vue),
       with every control disabled because this static site has no API.
   -------------------------------------------------------------------------- */

.auth-shell {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 4rem);
  padding: clamp(2rem, 6vw, 4rem) var(--gutter);
}

.auth-card {
  width: 100%;
  max-width: 26rem;
  padding: clamp(1.5rem, 4vw, 2.25rem);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.auth-card__head {
  text-align: center;
  margin-bottom: 1.5rem;
}

.auth-card__head .brand__mark {
  margin-inline: auto;
  margin-bottom: 0.75rem;
}

.auth-card__title {
  font-size: 1.125rem;
  font-weight: 700;
}

.auth-card__sub {
  margin-top: 0.25rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.notice {
  display: flex;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  margin-bottom: 1.5rem;
  background: var(--accent-tint);
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
  border-radius: var(--radius);
}

.notice__icon {
  flex: none;
  margin-top: 0.15rem;
  color: var(--accent-strong);
}

.notice__title {
  font-size: 0.875rem;
  font-weight: 700;
}

.notice__body {
  margin-top: 0.25rem;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.field {
  margin-bottom: 1rem;
}

.field__label {
  display: block;
  margin-bottom: 0.375rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.field__input {
  width: 100%;
  padding: 0.55rem 0.75rem;
  background: var(--page);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font: inherit;
  font-size: 0.875rem;
}

.field__input:disabled {
  cursor: not-allowed;
  opacity: 0.7;
}

.auth-card__submit {
  width: 100%;
  margin-top: 0.25rem;
}

.auth-card__foot {
  margin-top: 1.25rem;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   19. Calculations reference
   -------------------------------------------------------------------------- */

.page-head {
  padding-block: clamp(2.5rem, 5vw, 3.5rem) clamp(1.5rem, 3vw, 2rem);
}

.page-head__title {
  font-size: clamp(1.85rem, 1.4rem + 1.9vw, 2.6rem);
  letter-spacing: -0.03em;
  font-weight: 800;
}

.page-head__intro {
  max-width: 44rem;
  margin-top: 0.875rem;
  color: var(--text-secondary);
}

.calc-category {
  padding-block: clamp(2rem, 4vw, 2.75rem);
  border-top: 1px solid var(--border);
}

.calc-category__title {
  font-size: 1.125rem;
  letter-spacing: -0.018em;
  margin-bottom: 1.25rem;
}

.calc-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 46rem) {
  .calc-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 72rem) {
  .calc-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.calc {
  display: flex;
  flex-direction: column;
  padding: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

/* Mirrors the app's CalculationModal: the formula box carries its own small
   uppercase label, like the example box's "Worked example" title. Scoped to
   .calc — index.html's formula teasers reuse .formula__expr without it. */
.calc .formula__expr::before {
  content: 'Formula';
  display: block;
  margin-bottom: 0.375rem;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.calc__vars {
  margin: 1rem 0 0;
  padding-top: 0.875rem;
  border-top: 1px solid var(--border);
  display: grid;
  gap: 0.625rem;
}

.calc__var-term {
  display: inline-block;
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
  background: var(--accent-tint);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--accent-strong);
}

.calc__var-desc {
  margin: 0.125rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

.calc__example {
  margin-top: 1rem;
  padding: 0.75rem;
  background: var(--surface-sunken);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.calc__example-title {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.625rem;
}

.calc__example-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.8125rem;
  padding-block: 0.1875rem;
}

.calc__example-row span:first-child {
  color: var(--text-secondary);
}

.calc__example-row span:last-child {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.calc__example-row--result {
  margin-top: 0.375rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border);
  font-weight: 700;
}

.calc__example-row--result span:last-child {
  color: var(--accent-strong);
}

.calc__example-note {
  margin-top: 0.625rem;
  font-size: 0.6875rem;
  line-height: 1.5;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   20. Error page
   -------------------------------------------------------------------------- */

.error-shell {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 4rem);
  padding: clamp(2rem, 6vw, 4rem) var(--gutter);
  text-align: center;
}

.error-code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.error-title {
  margin-top: 0.75rem;
  font-size: clamp(1.6rem, 1.3rem + 1.4vw, 2.1rem);
  letter-spacing: -0.026em;
}

.error-body {
  max-width: 30rem;
  margin: 0.875rem auto 0;
  color: var(--text-secondary);
}

.error-actions {
  justify-content: center;
  margin-top: 1.75rem;
}

/* --------------------------------------------------------------------------
   21. Utilities
   -------------------------------------------------------------------------- */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.theme-icon--dark {
  display: none;
}

:root[data-theme='dark'] .theme-icon--light {
  display: none;
}

:root[data-theme='dark'] .theme-icon--dark {
  display: block;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) .theme-icon--light {
    display: none;
  }
  :root:not([data-theme='light']) .theme-icon--dark {
    display: block;
  }
}

/* --------------------------------------------------------------------------
   22. Progress page — roadmap timeline
   -------------------------------------------------------------------------- */

.roadmap-hint {
  display: flex;
  align-items: center;
  gap: 0.4375rem;
  margin-top: 0.875rem;
  font-size: 0.8125rem;
  color: var(--accent-strong);
}

.roadmap-hint svg {
  flex: none;
}

.roadmap {
  position: relative;
  list-style: none;
  margin: 2rem 0 0;
  padding: 0.5rem 0 1.25rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(6rem, 1fr));
  gap: 1.75rem 0.25rem;
}

.roadmap__node {
  position: relative;
  z-index: 1;
}

.roadmap__node-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.25rem;
  width: 100%;
  padding: 0.375rem;
  margin: -0.375rem;
  border-radius: var(--radius);
  color: inherit;
  text-decoration: none;
  transition: background-color 0.15s ease;
}

.roadmap__node-link:hover,
.roadmap__node-link:focus-visible {
  background: var(--surface-sunken);
}

.roadmap__node-link:hover .roadmap__name,
.roadmap__node-link:focus-visible .roadmap__name {
  color: var(--accent-strong);
}

.roadmap__ring-wrap {
  position: relative;
  width: 2.75rem;
  height: 2.75rem;
  background: var(--page);
  border-radius: 50%;
}

.ring {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.ring__track {
  fill: none;
  stroke: var(--border);
  stroke-width: 3;
}

.ring__value {
  fill: none;
  stroke-width: 3;
  stroke-linecap: round;
}

.ring__value--good {
  stroke: var(--status-good);
}

.ring__value--warning {
  stroke: var(--status-warning);
}

.roadmap__ring-label {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 700;
  color: var(--text-primary);
}

.roadmap__index {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--text-muted);
  margin-top: 0.375rem;
}

.roadmap__name {
  font-size: 0.8125rem;
  font-weight: 700;
}

.roadmap__status-text {
  font-size: 0.6875rem;
  color: var(--text-secondary);
}

.progress-note {
  margin-top: 0.625rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

@media (max-width: 59.99rem) {
  .roadmap {
    grid-template-columns: 1fr;
    row-gap: 1.25rem;
  }

  /* A single column is the one shape where a straight connecting line can accurately represent
     every node in sequence — the wider multi-row grid above intentionally has no such line, since
     a fixed line can't correctly connect a layout that reflows into a variable number of rows. */
  .roadmap::before {
    content: '';
    position: absolute;
    top: 0.5rem;
    bottom: 0.5rem;
    left: 1.375rem;
    width: 2px;
    background: var(--border);
    z-index: 0;
  }

  .roadmap__node-link {
    flex-direction: row;
    text-align: left;
    justify-content: flex-start;
    padding-block: 0.75rem;
    margin: 0;
  }

  .roadmap__ring-wrap {
    flex: none;
  }
}

/* --------------------------------------------------------------------------
   23. Progress page — module cards
   -------------------------------------------------------------------------- */

.progress-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

@media (min-width: 46rem) {
  .progress-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 72rem) {
  .progress-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.progress-card {
  display: flex;
  flex-direction: column;
  padding: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.progress-card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}

.progress-card__index {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
}

.progress-card__name {
  font-size: 1rem;
  font-weight: 700;
  margin-top: 0.125rem;
  letter-spacing: -0.012em;
}

.progress-card__desc {
  margin-top: 0.625rem;
  font-size: 0.8125rem;
  line-height: 1.55;
  color: var(--text-muted);
}

.progress-card__bar-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
}

.progress-bar {
  flex: 1;
  height: 0.5rem;
  border-radius: 999px;
  background: var(--surface-sunken);
  border: 1px solid var(--border);
  overflow: hidden;
}

.progress-bar__fill {
  height: 100%;
  border-radius: 999px;
}

.progress-bar__fill--good {
  background: var(--status-good);
}

.progress-bar__fill--warning {
  background: var(--status-warning);
}

.progress-bar__fill--muted {
  background: var(--text-muted);
}

.progress-bar__value {
  flex: none;
  min-width: 2.5rem;
  text-align: right;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
}

.progress-card__details {
  margin-top: 1rem;
  padding-top: 0.875rem;
  border-top: 1px solid var(--border);
}

.progress-card__details summary {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
  cursor: pointer;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-strong);
}

.progress-card__details summary::-webkit-details-marker {
  display: none;
}

.progress-card__details summary svg {
  transition: transform 0.15s ease;
}

.progress-card__details[open] summary svg {
  transform: rotate(180deg);
}

.progress-card__lists {
  display: grid;
  gap: 1rem;
  margin-top: 0.875rem;
}

@media (min-width: 30rem) {
  .progress-card__lists {
    grid-template-columns: 1fr 1fr;
  }
}

.task-list-title {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.task-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.task-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--text-secondary);
}

.task-list li svg {
  flex: none;
  margin-top: 0.2rem;
}

.task-list--done li svg {
  color: var(--status-good);
}

.task-list--remaining li svg {
  color: var(--text-muted);
}

.task-list__empty {
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-style: italic;
}

/* --------------------------------------------------------------------------
   24. Chip variants for build status (distinct wording from the
       customer-facing chips used on index.html's Platform section)
   -------------------------------------------------------------------------- */

.chip--done .chip__dot {
  background: var(--status-good);
}

.chip--in-progress .chip__dot {
  background: var(--status-warning);
}

.chip--not-started .chip__dot {
  background: var(--text-muted);
}

.chip--complete .chip__dot {
  background: var(--status-good);
}

.chip--partial .chip__dot {
  background: var(--status-warning);
}

.chip--needs-testing .chip__dot {
  background: var(--accent);
}

.chip--needs-verification .chip__dot {
  background: var(--status-serious);
}

.chip--blocked .chip__dot {
  background: var(--status-critical);
}

.chip--deprecated .chip__dot {
  background: var(--text-muted);
}

.chip--deprecated {
  text-decoration: line-through;
  opacity: 0.75;
}

/* --------------------------------------------------------------------------
   25. Progress page — week nav
   -------------------------------------------------------------------------- */

.week-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.week-nav__item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.125rem;
  padding: 0.5rem 0.875rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  cursor: pointer;
  text-align: left;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.week-nav__item:hover {
  border-color: var(--border-strong);
}

.week-nav__item[aria-selected='true'] {
  border-color: var(--accent-strong);
  background: var(--accent-tint);
}

.week-nav__label {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text-primary);
}

.week-nav__item[aria-selected='true'] .week-nav__label {
  color: var(--accent-strong);
}

.week-nav__date {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   26. Progress page — overall progress stat
   -------------------------------------------------------------------------- */

.overall-progress {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 2rem;
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-card);
}

.overall-progress__ring-wrap {
  position: relative;
  flex: none;
  width: 4.5rem;
  height: 4.5rem;
}

.overall-progress__ring-label {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-primary);
}

.overall-progress__label {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-primary);
}

.overall-progress__week {
  margin-top: 0.125rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.overall-progress__note {
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
  max-width: 32rem;
}

/* --------------------------------------------------------------------------
   27. Changelog — shared between progress.html's preview and changelog.html
   -------------------------------------------------------------------------- */

.breadcrumb-link {
  display: inline-block;
  margin-bottom: 1rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
}

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

.changelog-list {
  list-style: none;
  display: grid;
  gap: 0.625rem;
}

.changelog-list li {
  display: flex;
  align-items: baseline;
  gap: 0.625rem;
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

.changelog-list li svg {
  flex: none;
  transform: translateY(0.15em);
  color: var(--status-good);
}

.changelog-entry__text {
  flex: 1;
}

.changelog-view-all {
  margin-top: 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
}

.changelog-group + .changelog-group {
  margin-top: 2.5rem;
}

.changelog-group__title {
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.012em;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

/* --------------------------------------------------------------------------
   28. Progress page — project milestones (the dated strip in the page head)
   -------------------------------------------------------------------------- */

/* Shared by the Milestones and Project phases strips in the page head. */
.strip-heading {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin: 1.25rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--accent-strong);
}

.milestones {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.375rem 0.875rem;
  margin-top: 0.5rem;
  padding: 0;
  list-style: none;
}

.milestones__item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.milestones__item + .milestones__item::before {
  content: '→';
  color: var(--text-muted);
  font-size: 0.8125rem;
  margin-right: 0.375rem;
}

.milestones__date {
  padding: 0.2rem 0.55rem;
  background: var(--accent-tint);
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--accent-strong);
  white-space: nowrap;
}

.milestones__label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   29. Progress page — project phases (the engagement plan strip in the
       page head: five phases with duration, start date, and status)
   -------------------------------------------------------------------------- */

.phases {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(11.5rem, 1fr));
  gap: 0.5rem;
  margin-top: 0.5rem;
  padding: 0;
  list-style: none;
}

.phases__item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.25rem;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.phases__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  width: 100%;
}

.phases__step {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   30. Developer System Tracker (site/dev-tracker.html) — internal only, not
       linked from any public nav. Reuses .chip/.task-list/.progress-bar/
       .container wholesale; only genuinely new layout here.
   -------------------------------------------------------------------------- */

.dt-header-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin-top: 1rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.dt-meta-item code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--surface-sunken);
  padding: 0.1rem 0.375rem;
  border-radius: 4px;
}

.dt-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

@media (min-width: 40rem) {
  .dt-stat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 64rem) {
  .dt-stat-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

.dt-stat-tile {
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.dt-stat-tile--total {
  background: var(--accent-tint);
  border-color: var(--accent);
}

.dt-stat-tile__value {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: baseline;
  gap: 0.375rem;
}

.dt-stat-tile__pct {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
}

.dt-stat-tile__label {
  margin-top: 0.375rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

/* Generic dense table used for module overview + feature breakdowns + the matrix */
.dt-table-scroll {
  overflow-x: auto;
}

.dt-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

.dt-table th,
.dt-table td {
  padding: 0.5rem 0.625rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.dt-table thead th {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
}

.dt-table .dt-num {
  text-align: right;
  white-space: nowrap;
}

.dt-table tbody tr:hover {
  background: var(--surface-sunken);
}

.dt-pct-label {
  display: inline-block;
  margin-left: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Module overview + module-detail progress bars, sized down from the full-width ones on progress.html */
.dt-table .progress-bar {
  display: inline-block;
  width: 6rem;
  vertical-align: middle;
}

/* Controls bar: search + filters + expand/collapse */
.dt-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin-bottom: 1.25rem;
  position: sticky;
  top: 0.5rem;
  z-index: 5;
  padding: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.dt-search,
.dt-select {
  font: inherit;
  font-size: 0.8125rem;
  padding: 0.4rem 0.625rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--page);
  color: var(--text-primary);
}

.dt-search {
  flex: 1 1 14rem;
  min-width: 10rem;
}

/* Module detail sections — <details>, mirroring .progress-card__details */
.dt-module {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  margin-bottom: 1rem;
  padding: 1rem 1.25rem;
  scroll-margin-top: 5.5rem;
}

.dt-module__summary {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  cursor: pointer;
  list-style: none;
}

.dt-module__summary::-webkit-details-marker {
  display: none;
}

.dt-module__name {
  font-weight: 700;
  font-size: 1.0625rem;
}

.dt-module__count {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.dt-module__bar {
  width: 8rem;
  margin-left: auto;
}

.dt-module__desc {
  margin: 0.625rem 0 1rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  max-width: 52rem;
}

.dt-feature-name {
  min-width: 16rem;
}

.dt-feature-notes {
  margin-top: 0.25rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.dt-feature-evidence {
  margin-top: 0.25rem;
}

.dt-evidence-path {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
  background: var(--surface-sunken);
  padding: 0.05rem 0.3rem;
  border-radius: 4px;
  margin: 0.1rem 0.2rem 0.1rem 0;
}

.dt-layer-head {
  text-align: center;
}

.dt-layer-cell {
  text-align: center;
}

.dt-layer {
  display: inline-block;
  font-size: 0.875rem;
  line-height: 1;
}

.dt-layer--complete {
  color: var(--status-good);
}

.dt-layer--partial {
  color: var(--status-warning);
}

.dt-layer--missing {
  color: var(--status-critical);
}

.dt-layer--na {
  color: var(--text-muted);
}

.dt-sortable {
  cursor: pointer;
  user-select: none;
}

.dt-sortable:hover {
  color: var(--text-secondary);
}

/* Testing tracker */
.dt-testsuites {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.dt-testsuite {
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.dt-testsuite__label {
  font-weight: 600;
  font-size: 0.875rem;
}

.dt-testsuite__totals {
  margin-top: 0.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.8125rem;
}

.dt-testsuite__stat--pass {
  color: var(--status-good);
}

.dt-testsuite__stat--fail {
  color: var(--status-critical);
  font-weight: 600;
}

.dt-testsuite__stat--skip {
  color: var(--text-muted);
}

.dt-testsuite__duration {
  margin-top: 0.375rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.dt-failures {
  margin-bottom: 1.25rem;
}

.dt-failure {
  padding: 0.75rem;
  border: 1px solid var(--status-critical);
  border-radius: var(--radius);
  background: var(--accent-tint);
  margin-top: 0.5rem;
}

.dt-failure__test {
  font-weight: 600;
  font-size: 0.8125rem;
}

.dt-failure__error {
  margin-top: 0.375rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.dt-all-green {
  color: var(--status-good);
  font-weight: 600;
  font-size: 0.875rem;
}

/* Known issues */
.dt-issue-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr));
  gap: 1rem;
}

.dt-issue {
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.dt-issue__head {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  flex-wrap: wrap;
}

.dt-issue__title {
  font-size: 0.9375rem;
  font-weight: 600;
}

.dt-issue__desc {
  margin: 0.5rem 0 0.625rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

/* Development TODO */
.dt-todo-group {
  margin-bottom: 1.5rem;
}

.dt-todo-group__title {
  font-size: 1rem;
  margin-bottom: 0.75rem;
}

.dt-todo {
  padding: 0.875rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  margin-bottom: 0.625rem;
}

.dt-todo__title {
  font-weight: 600;
  font-size: 0.875rem;
}

.dt-todo__desc {
  margin: 0.375rem 0 0.5rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

/* Needs verification */
.dt-verify-grid {
  display: grid;
  gap: 1rem;
}

.dt-verify {
  padding: 1rem 1.25rem;
  border: 1px solid var(--status-serious);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.dt-verify__title {
  font-size: 0.9375rem;
  font-weight: 600;
}

.dt-verify__dl {
  margin-top: 0.625rem;
  display: grid;
  gap: 0.5rem;
}

.dt-verify__dl dt {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.dt-verify__dl dd {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-top: 0.125rem;
}

/* File index */
.dt-file-index {
  columns: 2;
  column-gap: 2rem;
}

@media (max-width: 40rem) {
  .dt-file-index {
    columns: 1;
  }
}

.dt-file-group {
  break-inside: avoid;
  margin-bottom: 1.25rem;
}

.dt-file-list {
  list-style: none;
  padding: 0;
  font-size: 0.75rem;
}

.dt-file-list li {
  margin-bottom: 0.2rem;
}

/* Audit trail */
.dt-audit-dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.5rem 1.5rem;
  font-size: 0.875rem;
}

.dt-audit-dl dt {
  font-weight: 600;
  color: var(--text-secondary);
}

.dt-audit-dl dd {
  color: var(--text-secondary);
}

.phases__name {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text-primary);
}

.phases__meta {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
}