/* Coolcheck — shared stylesheet */
/* Brand: brutalist/stark, single-column, zero-radius, 4px spacing unit */
/* Palette, type, radius, stance, motion all from assets/brand.md */

/* ------------------------------------------------------------------ */
/* CSS custom properties / brand palette                              */
/* ------------------------------------------------------------------ */
:root {
  --color-primary: #134a59;
  --color-primary-lighter: #eaf2f4;
  --color-primary-dark: #0b2f38;
  --color-accent: #bc6c25;
  --color-accent-lighter: #faf0e8;
  --color-valid: #2e7d5e;
  --color-bg: #f5f2ed;
  --color-surface: #ffffff;
  --color-text: #1a1c23;
  --color-text-muted: #78716c;
  --color-border: #d1d5db;
  --color-border-strong: #a8a29e;
  --color-warning-bg: #fff8f0;
  --color-warning-border: #e6c08f;
  --color-error-bg: #fef2f2;
  --color-error-border: #d97777;
  --color-error-text: #7f1d1d;

  --font-display: 'Manrope', sans-serif;
  --font-body: 'Rubik', sans-serif;
  --font-mono: 'Source Code Pro', monospace;

  --radius: 0px;
  --space: 4px;
  --max-width: 960px;
}

/* Dark theme — visitor can toggle via [data-theme="dark"] */
[data-theme="dark"] {
  --color-primary: #2f8ca8;
  --color-primary-lighter: #1a3a42;
  --color-primary-dark: #4ba6c2;
  --color-accent: #d4883a;
  --color-accent-lighter: #2a1e10;
  --color-valid: #4caf7a;
  --color-bg: #121314;
  --color-surface: #1e2023;
  --color-text: #e8e6e3;
  --color-text-muted: #a09c97;
  --color-border: #3a3a3e;
  --color-border-strong: #5a5a5e;
  --color-warning-bg: #2a1e10;
  --color-warning-border: #7a5330;
  --color-error-bg: #2a1010;
  --color-error-border: #8a3030;
  --color-error-text: #e88;
}

/* ------------------------------------------------------------------ */
/* Reset & base                                                       */
/* ------------------------------------------------------------------ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  padding: 0;
  transition: background 200ms ease, color 200ms ease;
}

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

a {
  color: var(--color-primary);
  text-underline-offset: 2px;
}

a:hover {
  color: var(--color-accent);
}

/* ------------------------------------------------------------------ */
/* Layout containers                                                  */
/* ------------------------------------------------------------------ */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 calc(var(--space) * 6);
}

/* ------------------------------------------------------------------ */
/* Typography                                                         */
/* ------------------------------------------------------------------ */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: calc(var(--space) * 4);
}

h1 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.125rem;
}

p {
  margin-bottom: calc(var(--space) * 4);
}

code, pre {
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

/* ------------------------------------------------------------------ */
/* Section eyebrow — mono, uppercase, letter-spaced, with language     */
/* ------------------------------------------------------------------ */
.section-eb {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: calc(var(--space) * 2);
}

/* Section number accent in the eyebrow */
.section-eb .num {
  color: var(--color-accent);
  margin-right: calc(var(--space) * 1);
}

/* ------------------------------------------------------------------ */
/* Section heading (makes a claim, not a label)                       */
/* ------------------------------------------------------------------ */
.section-h {
  margin-bottom: calc(var(--space) * 4);
}

/* ------------------------------------------------------------------ */
/* Section rule — thick horizontal rule, the only ornament             */
/* ------------------------------------------------------------------ */
.section-rule {
  border: none;
  border-top: 2px solid var(--color-border-strong);
  margin: 0;
  width: 100%;
}

/* ------------------------------------------------------------------ */
/* Navigation & header                                                */
/* ------------------------------------------------------------------ */
.site-header {
  background: var(--color-primary);
  color: white;
  padding: calc(var(--space) * 4) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header .logo-link {
  display: flex;
  align-items: center;
  gap: calc(var(--space) * 2);
  text-decoration: none;
  color: white;
}

.site-header .logo-link:hover {
  color: rgba(255,255,255,0.85);
}

.site-header .logo-link img {
  display: block;
}

.site-header .brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.01em;
}

.header-right {
  display: flex;
  align-items: center;
  gap: calc(var(--space) * 4);
}

.header-right nav {
  display: flex;
  gap: calc(var(--space) * 4);
}

.header-right nav a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  font-size: 0.875rem;
  font-family: var(--font-body);
  font-weight: 500;
}

.header-right nav a:hover {
  color: white;
}

/* Dark/light toggle */
.theme-toggle {
  background: none;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--radius);
  color: rgba(255,255,255,0.85);
  cursor: pointer;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  padding: calc(var(--space) * 1) calc(var(--space) * 2);
  transition: background 200ms ease, color 200ms ease;
  line-height: 1;
}

.theme-toggle:hover {
  background: rgba(255,255,255,0.1);
  color: white;
}

/* ------------------------------------------------------------------ */
/* Footer                                                             */
/* ------------------------------------------------------------------ */
.site-footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.75);
  padding: calc(var(--space) * 6) 0;
  font-size: 0.8125rem;
  margin-top: calc(var(--space) * 12);
}

.site-footer a {
  color: rgba(255,255,255,0.85);
}

.site-footer a:hover {
  color: white;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: calc(var(--space) * 3) calc(var(--space) * 6);
  margin-bottom: calc(var(--space) * 4);
}

.footer-links a {
  font-family: var(--font-body);
  font-weight: 500;
  text-decoration: none;
  font-size: 0.8125rem;
}

.footer-links a:hover {
  text-decoration: underline;
}

.site-footer .disclaimer {
  margin-top: calc(var(--space) * 4);
  padding-top: calc(var(--space) * 4);
  border-top: 1px solid rgba(255,255,255,0.2);
  font-size: 0.75rem;
  line-height: 1.5;
}

/* ------------------------------------------------------------------ */
/* Hero section                                                       */
/* ------------------------------------------------------------------ */
.hero {
  padding: calc(var(--space) * 16) 0 calc(var(--space) * 8);
}

.hero h1 {
  max-width: 700px;
  margin-bottom: calc(var(--space) * 4);
}

.hero .hero-sub {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  max-width: 580px;
  margin-bottom: calc(var(--space) * 8);
}

/* ------------------------------------------------------------------ */
/* Buttons                                                            */
/* ------------------------------------------------------------------ */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.875rem;
  padding: calc(var(--space) * 3) calc(var(--space) * 6);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: background 200ms ease, color 200ms ease, border-color 200ms ease;
  line-height: 1.4;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
}

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

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: white;
}

.btn-accent {
  background: var(--color-accent);
  color: white;
  border-color: var(--color-accent);
}

.btn-accent:hover {
  background: #a35f1f;
  border-color: #a35f1f;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Compound control — action + copy button joined as one object */
.compound-control {
  display: inline-flex;
  align-items: stretch;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius);
}

.compound-control .compound-action {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.875rem;
  padding: calc(var(--space) * 3) calc(var(--space) * 4);
  background: var(--color-primary);
  color: white;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: background 200ms ease;
}

.compound-control .compound-action:hover {
  background: var(--color-primary-dark);
}

.compound-control .compound-copy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: calc(var(--space) * 2) calc(var(--space) * 3);
  background: transparent;
  color: var(--color-primary);
  cursor: pointer;
  border: none;
  border-left: 1px solid var(--color-primary);
  transition: background 200ms ease;
  line-height: 1;
}

.compound-control .compound-copy:hover {
  background: var(--color-primary-lighter);
}

.compound-copy.copied {
  background: var(--color-valid);
  color: white;
}

/* ------------------------------------------------------------------ */
/* Sections                                                           */
/* ------------------------------------------------------------------ */
.section {
  padding: calc(var(--space) * 8) 0;
}

/* ------------------------------------------------------------------ */
/* Card (for content groupings)                                       */
/* ------------------------------------------------------------------ */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: calc(var(--space) * 6);
  margin-bottom: calc(var(--space) * 4);
}

.card h3 {
  margin-bottom: calc(var(--space) * 2);
}

/* ------------------------------------------------------------------ */
/* How-it-works style — staggered single column, each item with       */
/* a mono clause reference as anchor                                  */
/* ------------------------------------------------------------------ */
.how-item {
  display: flex;
  gap: calc(var(--space) * 3);
  align-items: flex-start;
  padding: calc(var(--space) * 3) 0;
}

.how-item + .how-item {
  border-top: 1px solid var(--color-border);
}

.how-item .how-ref {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--color-accent);
  min-width: 3em;
  line-height: 1.6;
}

.how-item .how-text {
  font-size: 0.9375rem;
  line-height: 1.5;
}

/* ------------------------------------------------------------------ */
/* Figure — inline SVG wrapper                                        */
/* ------------------------------------------------------------------ */
.figure-wrap {
  margin: calc(var(--space) * 8) 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: calc(var(--space) * 6);
}

.figure-wrap svg {
  display: block;
  width: 100%;
  height: auto;
}

/* ------------------------------------------------------------------ */
/* Tool page — two-column layout                                      */
/* ------------------------------------------------------------------ */
.tool-layout {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: calc(var(--space) * 6);
  align-items: start;
}

.tool-form-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: calc(var(--space) * 6);
}

.tool-results-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: calc(var(--space) * 6);
  min-height: 300px;
  opacity: 0;
  transition: opacity 300ms ease;
}

.tool-results-panel.visible {
  opacity: 1;
}

/* ------------------------------------------------------------------ */
/* Form fields                                                        */
/* ------------------------------------------------------------------ */
.form-group {
  margin-bottom: calc(var(--space) * 5);
}

.form-group label {
  display: block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.8125rem;
  margin-bottom: calc(var(--space) * 1);
  color: var(--color-text);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  padding: calc(var(--space) * 2) calc(var(--space) * 3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-text);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: -1px;
  border-color: var(--color-primary);
}

.form-group .help-text {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: calc(var(--space) * 1);
}

fieldset {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: calc(var(--space) * 4);
  margin-bottom: calc(var(--space) * 4);
}

legend {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0 calc(var(--space) * 2);
}

.param-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: calc(var(--space) * 2);
  margin-bottom: calc(var(--space) * 3);
  align-items: end;
}

.param-row .form-group {
  margin-bottom: 0;
}

.param-row .form-group label {
  font-size: 0.6875rem;
  white-space: nowrap;
}

.param-row .form-group input {
  font-size: 0.75rem;
  padding: calc(var(--space) * 1) calc(var(--space) * 2);
}

/* ------------------------------------------------------------------ */
/* Results table                                                      */
/* ------------------------------------------------------------------ */
.results-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

.results-table th,
.results-table td {
  text-align: left;
  padding: calc(var(--space) * 3);
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.results-table th {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-text-muted);
}

.results-table tr:last-child td {
  border-bottom: none;
}

/* Finding type badges */
.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 1px calc(var(--space) * 2);
  border: 1px solid;
  border-radius: var(--radius);
  text-transform: uppercase;
}

.badge-out-of-range {
  background: var(--color-error-bg);
  color: var(--color-error-text);
  border-color: var(--color-error-border);
}

.badge-overdue {
  background: var(--color-warning-bg);
  color: #92400e;
  border-color: var(--color-warning-border);
}

.badge-missing {
  background: var(--color-warning-bg);
  color: #92400e;
  border-color: var(--color-warning-border);
}

.badge-compliant {
  background: #f0faf4;
  color: #166534;
  border-color: #86cfa1;
}

/* ------------------------------------------------------------------ */
/* Compliant state                                                    */
/* ------------------------------------------------------------------ */
.compliant-state {
  text-align: center;
  padding: calc(var(--space) * 8) calc(var(--space) * 4);
}

.compliant-state .check-icon {
  display: inline-block;
  width: 48px;
  height: 48px;
  border: 2px solid var(--color-valid);
  border-radius: var(--radius);
  line-height: 44px;
  font-size: 1.5rem;
  color: var(--color-valid);
  margin-bottom: calc(var(--space) * 3);
}

.compliant-state h3 {
  color: var(--color-valid);
  margin-bottom: calc(var(--space) * 2);
}

.compliant-state p {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* ------------------------------------------------------------------ */
/* Error state                                                        */
/* ------------------------------------------------------------------ */
.error-state {
  background: var(--color-error-bg);
  border: 1px solid var(--color-error-border);
  border-radius: var(--radius);
  padding: calc(var(--space) * 4);
  margin-bottom: calc(var(--space) * 3);
}

.error-state p {
  color: var(--color-error-text);
  font-size: 0.8125rem;
  margin-bottom: 0;
}

/* ------------------------------------------------------------------ */
/* Loading spinner                                                    */
/* ------------------------------------------------------------------ */
.loading-state {
  text-align: center;
  padding: calc(var(--space) * 8);
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  animation: spin 0.6s linear infinite;
  margin-bottom: calc(var(--space) * 2);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ------------------------------------------------------------------ */
/* Downloads & actions bar                                            */
/* ------------------------------------------------------------------ */
.actions-bar {
  display: flex;
  flex-wrap: wrap;
  gap: calc(var(--space) * 3);
  margin-top: calc(var(--space) * 4);
  padding-top: calc(var(--space) * 4);
  border-top: 1px solid var(--color-border);
}

/* ------------------------------------------------------------------ */
/* Overdue notice                                                     */
/* ------------------------------------------------------------------ */
.overdue-notice {
  background: var(--color-warning-bg);
  border: 1px solid var(--color-warning-border);
  border-radius: var(--radius);
  padding: calc(var(--space) * 3) calc(var(--space) * 4);
  font-size: 0.75rem;
  color: #92400e;
  margin-bottom: calc(var(--space) * 4);
}

/* ------------------------------------------------------------------ */
/* Disclaimer block                                                   */
/* ------------------------------------------------------------------ */
.disclaimer {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ------------------------------------------------------------------ */
/* Limits grid — used on home page for what the tool checks           */
/* ------------------------------------------------------------------ */
.limits-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: calc(var(--space) * 2);
  margin-bottom: calc(var(--space) * 4);
}

.limits-cell {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: calc(var(--space) * 4);
}

.limits-cell .limits-val {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: calc(var(--space) * 1);
}

.limits-cell .limits-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

.limits-cell .limits-ref {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-accent);
  margin-top: calc(var(--space) * 1);
}

/* ------------------------------------------------------------------ */
/* Legal pages styling                                                */
/* ------------------------------------------------------------------ */
.legal-page h1 {
  margin-bottom: calc(var(--space) * 2);
}

.legal-page .last-updated {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: calc(var(--space) * 6);
}

.legal-page h2 {
  font-size: 1.125rem;
  margin-top: calc(var(--space) * 6);
  margin-bottom: calc(var(--space) * 3);
}

.legal-page p,
.legal-page li {
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: calc(var(--space) * 3);
}

.legal-page ul,
.legal-page ol {
  padding-left: calc(var(--space) * 6);
  margin-bottom: calc(var(--space) * 4);
}

.legal-page .placeholder-notice {
  background: var(--color-accent-lighter);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius);
  padding: calc(var(--space) * 4);
  font-size: 0.8125rem;
  margin-bottom: calc(var(--space) * 6);
}

/* ------------------------------------------------------------------ */
/* Motion — brand spec: no entrance animations, no scroll-triggered   */
/* fades, no parallax. Allowed: button bg transition, results panel   */
/* fade-in. New: motion that means something — count-up, node pulse.  */
/* ------------------------------------------------------------------ */

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
}

/* Pause-motion control */
.motion-control {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-text-muted);
  cursor: pointer;
  border: none;
  background: none;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.motion-control:hover {
  color: var(--color-primary);
}

/* ------------------------------------------------------------------ */
/* Pricing card (single card per brand spec)                          */
/* ------------------------------------------------------------------ */
.pricing-card {
  background: var(--color-surface);
  border: 2px solid var(--color-border-strong);
  border-radius: var(--radius);
  padding: calc(var(--space) * 8);
  max-width: 480px;
}

.pricing-card .price {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: calc(var(--space) * 2);
  letter-spacing: -0.02em;
}

.pricing-card .price-sub {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: calc(var(--space) * 4);
}

.pricing-card .includes {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: calc(var(--space) * 3);
}

.pricing-card .includes-list {
  list-style: none;
  padding: 0;
  margin-bottom: calc(var(--space) * 6);
}

.pricing-card .includes-list li {
  font-size: 0.875rem;
  padding: calc(var(--space) * 2) 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  gap: calc(var(--space) * 2);
}

.pricing-card .includes-list li:last-child {
  border-bottom: none;
}

.pricing-card .includes-list li::before {
  content: '—';
  color: var(--color-accent);
  font-family: var(--font-mono);
}

.pricing-card .not-avail {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: calc(var(--space) * 4);
  padding-top: calc(var(--space) * 4);
  border-top: 1px solid var(--color-border);
}

/* ------------------------------------------------------------------ */
/* Responsive                                                         */
/* ------------------------------------------------------------------ */
@media (max-width: 720px) {
  .tool-layout {
    grid-template-columns: 1fr;
  }

  .site-header .container {
    flex-wrap: wrap;
    gap: calc(var(--space) * 3);
  }

  .header-right {
    width: 100%;
    justify-content: space-between;
  }

  .hero {
    padding: calc(var(--space) * 8) 0 calc(var(--space) * 4);
  }

  .param-row {
    grid-template-columns: 1fr 1fr;
  }

  .limits-grid {
    grid-template-columns: 1fr;
  }

  .pricing-card {
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.5rem;
  }

  .header-right nav {
    gap: calc(var(--space) * 2);
  }

  .container {
    padding: 0 calc(var(--space) * 3);
  }
}