/* ============================================================
   CommsCrisis — Brand stylesheet
   Tokens derived from assets/brand.md (already decided, not advisory)
   ============================================================ */

/* --- CSS Custom Properties (brand tokens) --- */
:root {
  /* Typography */
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Source Sans 3', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;

  /* Palette */
  --color-primary: #2250a0;
  --color-primary-hover: #1a3d7a;
  --color-accent: #d45d38;
  --color-success: #2d7d46;
  --color-warning: #b8860b;
  --color-danger: #c0392b;
  --color-bg: #fafaf8;
  --color-surface: #ffffff;
  --color-text: #1a1a1a;
  --color-text-muted: #6b6b6b;
  --color-border: #d4d4d4;
  --color-border-light: #e8e8e8;

  /* Radius & spacing (brand tokens) */
  --radius: 2px;
  --space: 4px;

  /* Computed spacing helpers */
  --space-1: calc(var(--space) * 1);  /*  4px */
  --space-2: calc(var(--space) * 2);  /*  8px */
  --space-3: calc(var(--space) * 3);  /* 12px */
  --space-4: calc(var(--space) * 4);  /* 16px */
  --space-5: calc(var(--space) * 5);  /* 20px */
  --space-6: calc(var(--space) * 6);  /* 24px */
  --space-8: calc(var(--space) * 8);  /* 32px */
}

/* Fonts loaded via <link> in HTML <head> (better performance than @import) */

/* Fallback: if fonts fail, use system stack; the brand names are still correct. */

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

/* --- Base --- */
html {
  font-size: 100%; /* 16px base */
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --- Shared nav (used on every page) --- */
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding: var(--space-3) var(--space-6);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.site-nav a {
  text-decoration: none;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
}

.site-nav a:hover {
  color: var(--color-primary);
}

.site-nav .logo-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  color: var(--color-primary);
  margin-right: auto;
}

.site-nav .logo-link:hover {
  color: var(--color-primary);
}

.site-nav .nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.site-nav .nav-cta {
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-1) var(--space-3);
  border-radius: 0;
  font-weight: 600;
  font-size: 13px;
  transition: background 100ms;
}

.site-nav .nav-cta:hover {
  background: var(--color-primary-hover);
  color: #fff;
}

/* --- Page container --- */
.page {
  max-width: 960px;
  margin: 0 auto;
  padding: var(--space-6) var(--space-6) var(--space-8);
}

.page-wide {
  max-width: 1100px;
}

/* --- Headings --- */
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-text);
}

h1 {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

h2 {
  font-size: 20px;
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

h3 {
  font-size: 16px;
  margin-top: var(--space-6);
  margin-bottom: var(--space-2);
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  padding: var(--space-2) var(--space-4);
  border: none;
  border-radius: 0;
  cursor: pointer;
  transition: background 100ms;
  line-height: 1.3;
  text-decoration: none;
}

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

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

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

.btn-accent:hover {
  background: #b94e2d;
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
}

.btn-sm {
  font-size: 12px;
  padding: var(--space-1) var(--space-2);
}

/* --- Cards & surfaces --- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0;
  padding: var(--space-4);
}

/* --- Horizontal rule --- */
hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-6) 0;
}

/* --- Footer --- */
.site-footer {
  text-align: center;
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-border-light);
  font-family: var(--font-body);
  font-size: 11px;
  color: var(--color-text-muted);
}

/* === HERO LAYOUT === */

.hero {
  display: flex;
  gap: var(--space-8);
  align-items: center;
  margin-bottom: var(--space-8);
}

.hero-text {
  flex: 0 0 42%;
  max-width: 42%;
}

.hero-text h1 {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: var(--space-2);
  letter-spacing: -0.01em;
}

.hero-subtitle {
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.hero-visual {
  flex: 1;
  min-width: 0;
}

.hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  /* No border, no shadow, no rounded corners — brand stance is dense/stark */
}

@media (max-width: 720px) {
  .hero {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
  }

  .hero-text {
    flex: none;
    max-width: none;
  }

  .hero-visual {
    margin-top: 0;
  }
}

/* === FLOW FIGURE (inline SVG product diagram) === */

.flow-figure {
  margin: var(--space-8) auto;
  max-width: 540px;
}

.flow-diagram-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 500 / 260;
}

.flow-diagram-wrap svg {
  display: block;
  width: 100%;
  height: 100%;
}

.flow-label {
  position: absolute;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.2;
  pointer-events: none;
  white-space: nowrap;
}

/* Positioning based on the 500×260 SVG coordinate space */
.label-input {
  /* Above the input box: centered at x=82 (~16.4%), y=12 (~4.6%) */
  left: 16.4%;
  top: 4.6%;
  transform: translateX(-50%);
  color: var(--color-text-muted);
}

.label-process {
  /* Below the processing circle: cx=222 (44.4%), cy=148 (~56.9%) */
  left: 44.4%;
  top: 56.9%;
  transform: translateX(-50%);
  text-align: center;
  max-width: 120px;
  white-space: normal;
}

.label-out-1 {
  /* Inside top output box: centered at x=347 (69.4%), y=47 (~18%) */
  left: 69.4%;
  top: 18%;
  transform: translateX(-50%);
}

.label-out-2 {
  /* Inside row-2 output: x=347 (69.4%), y=97 (~37.3%) */
  left: 69.4%;
  top: 37.3%;
  transform: translateX(-50%);
}

.label-out-3 {
  /* Inside row-3 output: x=347 (69.4%), y=147 (~56.5%) */
  left: 69.4%;
  top: 56.5%;
  transform: translateX(-50%);
}

.label-out-4 {
  /* Inside bottom output: x=347 (69.4%), y=197 (~75.8%) */
  left: 69.4%;
  top: 75.8%;
  transform: translateX(-50%);
}

@media (max-width: 480px) {
  .flow-label {
    font-size: 9px;
  }
  .label-process {
    max-width: 80px;
  }
}

/* === HOME PAGE SPECIFIC === */

/* === APP PAGE SPECIFIC === */
.section-claim {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border-light);
}

.section-claim h2 {
  margin-top: 0;
}

.section-claim p {
  margin-bottom: var(--space-3);
  max-width: 680px;
}

.section-claim ul {
  list-style: none;
  padding: 0;
}

.section-claim li {
  padding: var(--space-1) 0;
  padding-left: var(--space-4);
  position: relative;
}

.section-claim li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-primary);
}

/* Limits box */
.limits-box {
  background: var(--color-surface);
  border: 1px solid var(--color-warning);
  border-radius: 0;
  padding: var(--space-4);
  margin: var(--space-4) 0;
  font-size: 14px;
}

.limits-box strong {
  color: var(--color-warning);
}

/* === APP PAGE SPECIFIC === */

.app-header {
  margin-bottom: var(--space-4);
}

.app-header h1 {
  font-size: 24px;
  font-weight: 600;
}

.app-header .subtitle {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-text-muted);
}

/* Fact entry zone */
.entry-zone {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0;
  padding: var(--space-4);
  margin-bottom: 0;
}

.entry-zone h2 {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  margin: 0 0 var(--space-3) 0;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.form-group label {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
  font-family: var(--font-body);
  font-size: 14px;
  padding: var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  outline: none;
  transition: border-color 100ms;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
}

.form-group textarea {
  resize: vertical;
  min-height: 56px;
  font-family: var(--font-mono);
  font-size: 13px;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-actions {
  grid-column: 1 / -1;
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  padding-top: var(--space-2);
}

/* Divider */
.zone-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-3) 0;
}

/* Draft zone */
.draft-zone-title {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.draft-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.draft-panel {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

.draft-panel.active {
  border-left: 2px solid var(--color-primary);
}

.draft-panel.sev1 {
  border-left: 2px solid var(--color-danger);
}

.draft-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-3);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border-light);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
}

.draft-panel-body {
  padding: var(--space-3);
  flex: 1;
  overflow-y: auto;
  max-height: 260px;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
}

.draft-panel-body.empty {
  font-family: var(--font-body);
  color: var(--color-text-muted);
  font-style: italic;
  font-size: 13px;
}

.copy-btn {
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 0;
  padding: 2px var(--space-2);
  font-family: var(--font-body);
  font-size: 11px;
  cursor: pointer;
  color: var(--color-text-muted);
  transition: all 100ms;
}

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

.copy-btn.copied {
  border-color: var(--color-success);
  color: var(--color-success);
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: var(--space-8);
  color: var(--color-text-muted);
  font-style: italic;
  font-size: 14px;
}

/* App page note */
.app-note {
  font-family: var(--font-body);
  font-size: 11px;
  color: var(--color-text-muted);
  margin-top: var(--space-3);
  text-align: center;
}

/* === PRICING PAGE === */

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin: var(--space-6) 0;
}

.pricing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0;
  padding: var(--space-6);
}

.pricing-card.featured {
  border-color: var(--color-primary);
  position: relative;
}

.pricing-card.featured::before {
  content: 'Recommended';
  position: absolute;
  top: -1px;
  right: var(--space-4);
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  padding: 2px var(--space-2);
  border-radius: 0;
}

.pricing-card h3 {
  font-family: var(--font-display);
  font-size: 18px;
  margin: 0 0 var(--space-1) 0;
}

.pricing-card .price {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-1);
}

.pricing-card .price-sub {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.pricing-card ul {
  list-style: none;
  padding: 0;
  margin-bottom: var(--space-4);
}

.pricing-card li {
  padding: var(--space-1) 0;
  padding-left: var(--space-4);
  position: relative;
  font-size: 14px;
}

.pricing-card li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-primary);
}

.pricing-card li.unavailable {
  color: var(--color-text-muted);
}

.pricing-card li.unavailable::before {
  background: var(--color-border);
}

/* Mock checkout */
.checkout-form {
  max-width: 480px;
  margin: var(--space-6) auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0;
  padding: var(--space-6);
}

.checkout-form .demo-badge {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  padding: 2px var(--space-2);
  border-radius: 0;
  margin-bottom: var(--space-3);
}

.checkout-form .form-row {
  margin-bottom: var(--space-3);
}

.checkout-form label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: var(--space-1);
}

.checkout-form input {
  width: 100%;
  font-family: var(--font-body);
  font-size: 14px;
  padding: var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  outline: none;
}

.checkout-form input:focus {
  border-color: var(--color-primary);
}

.checkout-form .form-note {
  font-size: 11px;
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}

.success-state {
  display: none;
  text-align: center;
  padding: var(--space-8);
}

.success-state.show {
  display: block;
}

.success-state .check-icon {
  color: var(--color-success);
  font-size: 48px;
  margin-bottom: var(--space-3);
}

/* === PRIVACY & TERMS === */
.legal-page h1 {
  margin-bottom: var(--space-4);
}

.legal-page h2 {
  margin-top: var(--space-6);
  font-size: 17px;
}

.legal-page p {
  margin-bottom: var(--space-3);
  max-width: 680px;
}

.legal-page .disclaimer {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0;
  padding: var(--space-4);
  font-size: 14px;
  margin: var(--space-4) 0;
}

/* === RESPONSIVE === */
@media (max-width: 720px) {
  .site-nav {
    flex-wrap: wrap;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
  }

  .site-nav .nav-links {
    gap: var(--space-2);
  }

  .page {
    padding: var(--space-4) var(--space-3) var(--space-6);
  }

  h1 {
    font-size: 22px;
  }

  .hero h1 {
    font-size: 24px;
  }

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

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

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

  .pricing-card.featured {
    order: -1;
  }
}

/* === SAVE / HISTORY === */
.save-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-4);
  flex-wrap: wrap;
}

.save-row .btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.save-row .btn:disabled:hover {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.save-row-note {
  font-family: var(--font-body);
  font-size: 11px;
  color: var(--color-text-muted);
}

/* History section */
.history-section {
  margin-top: var(--space-4);
}

.history-header {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.history-title {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.history-empty {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--color-text-muted);
  font-style: italic;
  padding: var(--space-3) 0;
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--color-border-light);
  border: 1px solid var(--color-border-light);
  border-radius: 0;
}

.history-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  font-family: var(--font-body);
  font-size: 13px;
}

.history-item-meta {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  min-width: 0;
  flex: 1;
}

.history-item-summary {
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.history-item-time {
  font-size: 11px;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.history-item-actions {
  display: flex;
  gap: var(--space-1);
  flex-shrink: 0;
}

.history-item-actions .btn {
  font-size: 11px;
  padding: 2px var(--space-2);
}

@media (max-width: 640px) {
  .history-item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }

  .history-item-meta {
    flex-direction: column;
    gap: var(--space-1);
  }
}