/* ============================================
   VeriSift — Marketing Site Styles
   Classified intelligence meets modern SaaS
   ============================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Instrument+Sans:wght@400;500;600;700&family=DM+Sans:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

/* --- CSS Custom Properties --- */
:root {
  /* Dark Foundation */
  --bg-primary: #0B1221;
  --bg-elevated: #131D2F;
  --bg-subtle: #1A2740;
  --bg-input: #0F1A2E;

  /* Gold Accent */
  --accent-primary: #C9A227;
  --accent-light: #E8D48B;
  --accent-muted: #3D3112;
  --accent-dim: #7A6B2D;

  /* Emerald Trust */
  --success: #2A9D6E;
  --success-dark: #1B6B4A;

  /* Status */
  --danger: #D44040;
  --warning: #D97706;
  --info: #3B82F6;

  /* Text */
  --text-primary: #F0ECE4;
  --text-secondary: #8B95A5;
  --text-tertiary: #5A6478;
  --text-dark: #111827;
  --text-dark-secondary: #4B5563;

  /* Paper */
  --bg-paper: #F0ECE4;
  --bg-paper-darker: #E5DFD3;
  --bg-paper-border: #D4CEC2;

  /* Fonts */
  --font-heading: 'Instrument Sans', system-ui, -apple-system, sans-serif;
  --font-body: 'DM Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;
  --space-32: 128px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.text-hero {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
}

.text-h1 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
}

.text-h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 600;
}

.text-h3 {
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  font-weight: 600;
}

.text-h4 {
  font-size: 1.25rem;
  font-weight: 600;
}

.text-body-lg {
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  line-height: 1.7;
}

.text-body-sm {
  font-size: 0.875rem;
}

.text-data {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.5;
}

.text-label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* --- Overline --- */
.overline {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-primary);
  margin-bottom: var(--space-5);
}

.overline::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--accent-primary);
  margin-right: 10px;
  vertical-align: middle;
}

/* --- Layout --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

@media (min-width: 768px) {
  .container { padding: 0 var(--space-8); }
}

/* --- Sections --- */
.section {
  position: relative;
  padding: var(--space-16) 0;
}

@media (min-width: 1024px) {
  .section { padding: var(--space-24) 0; }
}

/* Full-bleed top border on every section (except first) */
.section + .section::before,
.section + .section--cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: -50vw;
  width: 200vw;
  height: 1px;
  background: var(--bg-subtle);
  pointer-events: none;
}

.section--paper + .section::before {
  background: var(--bg-subtle);
}

.section--paper::before {
  background: var(--bg-paper-border) !important;
}

.section--dark {
  background: var(--bg-primary);
  color: var(--text-primary);
}

.section--paper {
  background: var(--bg-paper);
  color: var(--text-dark);
}

.section--paper .overline::before {
  background: var(--accent-dim);
}

.section--paper .overline {
  color: var(--accent-dim);
}

.section--paper .text-secondary {
  color: var(--text-dark-secondary);
}

.section--cta {
  background: var(--bg-primary);
  text-align: center;
  padding: var(--space-20) 0;
}

@media (min-width: 1024px) {
  .section--cta { padding: var(--space-32) 0; }
}

.section-header {
  max-width: 720px;
  margin-bottom: var(--space-12);
}

.section-header.centered {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-header p {
  margin-top: var(--space-5);
  color: var(--text-secondary);
}

.section--paper .section-header p {
  color: var(--text-dark-secondary);
}

/* --- Structural Grid ---
   Vertical border lines on the container (Greptile-style),
   full-bleed horizontal rules between sections,
   subtle dot texture on dark sections for depth. */

/* Grid frame wrapper — purely for grouping, no fixed lines */
.grid-frame {
  position: relative;
}

/* Vertical border lines — applied to .container within each section.
   Lines adapt color per section type (dark vs paper). */
.section .container,
.hero .container,
.footer .container {
  border-left: 1px solid var(--bg-subtle);
  border-right: 1px solid var(--bg-subtle);
}

.section--paper .container {
  border-left-color: var(--bg-paper-border);
  border-right-color: var(--bg-paper-border);
}

/* Bump horizontal padding slightly so content has breathing room from borders */
@media (min-width: 768px) {
  .section .container,
  .hero .container,
  .footer .container {
    padding-left: var(--space-10);
    padding-right: var(--space-10);
  }
}

@media (min-width: 1024px) {
  .section .container,
  .hero .container,
  .footer .container {
    padding-left: var(--space-16);
    padding-right: var(--space-16);
  }
}

/* --- Subtle grid dot texture on dark sections --- */
.section--dark,
.section--cta,
.hero {
  position: relative;
}

.section--dark::after,
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(26, 39, 64, 0.4) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
  z-index: 0;
}

.section--dark > .container,
.hero > .container {
  position: relative;
  z-index: 1;
}

/* grid-bg class adds a slightly denser texture on hero only */
.grid-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(26, 39, 64, 0.5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(26, 39, 64, 0.5) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom,
    transparent 0%,
    rgba(0,0,0,0.6) 20%,
    rgba(0,0,0,0.4) 60%,
    transparent 100%
  );
  -webkit-mask-image: linear-gradient(to bottom,
    transparent 0%,
    rgba(0,0,0,0.6) 20%,
    rgba(0,0,0,0.4) 60%,
    transparent 100%
  );
  pointer-events: none;
  z-index: 0;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(11, 18, 33, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--bg-subtle);
  transition: background 200ms ease;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  border-left: 1px solid var(--bg-subtle);
  border-right: 1px solid var(--bg-subtle);
}

@media (min-width: 768px) {
  .nav-inner { padding: 0 var(--space-10); }
}

@media (min-width: 1024px) {
  .nav-inner { padding: 0 var(--space-16); }
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-logo .logo-mark {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-logo .logo-mark svg {
  width: 24px;
  height: 24px;
}

.nav-links {
  display: none;
  align-items: center;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .nav-links { display: flex; }
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 150ms ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

.nav-cta {
  display: none;
}

@media (min-width: 768px) {
  .nav-cta { display: block; }
}

/* Mobile menu */
.nav-mobile-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
}

@media (min-width: 768px) {
  .nav-mobile-toggle { display: none; }
}

.nav-mobile-toggle svg {
  width: 24px;
  height: 24px;
}

.nav-mobile {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--bg-subtle);
  padding: var(--space-6);
  z-index: 99;
}

.nav-mobile.open {
  display: block;
}

.nav-mobile a {
  display: block;
  padding: var(--space-3) 0;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-secondary);
  transition: color 150ms ease;
}

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

.nav-mobile .btn {
  margin-top: var(--space-4);
  width: 100%;
  text-align: center;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 13px 28px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 150ms ease;
  white-space: nowrap;
}

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

.btn--primary:hover {
  background: var(--accent-light);
  box-shadow: 0 0 24px rgba(201, 162, 39, 0.25);
}

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

.btn--secondary:hover {
  background: var(--accent-muted);
}

.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 13px 16px;
}

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

.btn--sm {
  font-size: 0.85rem;
  padding: 9px 18px;
}

/* --- Cards --- */
.card {
  background: var(--bg-elevated);
  border: 1px solid var(--bg-subtle);
  border-radius: 12px;
  padding: var(--space-8);
  transition: all 200ms ease;
}

.card:hover {
  border-color: rgba(201, 162, 39, 0.15);
  box-shadow: 0 0 30px rgba(201, 162, 39, 0.04);
  transform: translateY(-2px);
}

.card--paper {
  background: #fff;
  border-color: var(--bg-paper-border);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.card--paper:hover {
  border-color: var(--bg-paper-border);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.09);
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--accent-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--accent-primary);
}

.card-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--accent-primary);
  stroke-width: 1.5;
  fill: none;
}

.card--paper .card-icon {
  background: rgba(201, 162, 39, 0.1);
}

.card h3 {
  margin-bottom: var(--space-3);
}

.card p {
  color: var(--text-secondary);
  line-height: 1.65;
}

.card--paper p {
  color: var(--text-dark-secondary);
}

/* Corner marks — crop mark decoration */
.card--marked {
  position: relative;
}

.card--marked::before,
.card--marked::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  pointer-events: none;
}

.card--marked::before {
  top: 10px;
  left: 10px;
  border-top: 1px solid var(--accent-dim);
  border-left: 1px solid var(--accent-dim);
}

.card--marked::after {
  bottom: 10px;
  right: 10px;
  border-bottom: 1px solid var(--accent-dim);
  border-right: 1px solid var(--accent-dim);
}

/* --- Grid Layouts --- */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); gap: var(--space-8); }
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); gap: var(--space-8); }
}

@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.grid-2x3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .grid-2x3 { grid-template-columns: repeat(2, 1fr); gap: var(--space-8); }
}

@media (min-width: 1024px) {
  .grid-2x3 { grid-template-columns: repeat(3, 1fr); }
}

/* --- Hero --- */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding-top: var(--space-32);
  padding-bottom: var(--space-16);
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 50% at 70% 15%, rgba(201, 162, 39, 0.06) 0%, transparent 100%),
    radial-gradient(ellipse 50% 80% at 10% 90%, rgba(13, 22, 40, 0.9) 0%, transparent 100%),
    linear-gradient(175deg, rgba(19, 29, 47, 0.5) 0%, transparent 35%),
    var(--bg-primary);
}

@media (min-width: 1024px) {
  .hero { padding-top: var(--space-32); padding-bottom: var(--space-24); }
}

.hero-content {
  max-width: 740px;
}

.hero-content .overline {
  margin-bottom: var(--space-6);
}

.hero h1 {
  margin-bottom: var(--space-6);
}

.hero h1 .accent {
  color: var(--accent-primary);
}

.hero-sub {
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 600px;
  margin-bottom: var(--space-10);
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  align-items: center;
}

/* Hero glow */
.hero-glow {
  position: absolute;
  top: -10%;
  right: -10%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(201, 162, 39, 0.12) 0%, rgba(201, 162, 39, 0.04) 35%, transparent 65%);
  pointer-events: none;
  z-index: 0;
}

/* Mini hero for inner pages */
.hero--mini {
  min-height: auto;
  padding-top: calc(64px + var(--space-16));
  padding-bottom: var(--space-12);
}

@media (min-width: 1024px) {
  .hero--mini {
    padding-top: calc(64px + var(--space-24));
    padding-bottom: var(--space-16);
  }
}

.hero--mini .hero-content {
  max-width: 640px;
}

/* --- Steps --- */
.steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.step {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  align-items: start;
}

@media (min-width: 768px) {
  .step {
    grid-template-columns: 80px 1fr;
    gap: var(--space-8);
  }
}

.step-number {
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 500;
  color: var(--accent-muted);
  line-height: 1;
}

@media (min-width: 768px) {
  .step-number {
    text-align: right;
    padding-top: 4px;
  }
}

.step-content h3 {
  margin-bottom: var(--space-3);
  color: var(--text-primary);
}

.step-content p {
  color: var(--text-secondary);
  max-width: 560px;
}

/* Connector line between steps */
.step-connector {
  display: none;
}

@media (min-width: 768px) {
  .step-connector {
    display: block;
    width: 1px;
    height: var(--space-10);
    margin-left: 72px;
    border-left: 1px dashed var(--accent-dim);
  }
}

/* --- Comparison Table --- */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  overflow-x: auto;
}

.comparison-table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: 12px;
  border: 1px solid var(--bg-paper-border);
}

.section--dark .comparison-table-wrapper {
  border-color: var(--bg-subtle);
}

.comparison-table th,
.comparison-table td {
  padding: var(--space-4) var(--space-5);
  text-align: left;
  border-bottom: 1px solid var(--bg-paper-border);
}

.section--dark .comparison-table th,
.section--dark .comparison-table td {
  border-bottom-color: var(--bg-subtle);
}

.comparison-table th {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  background: var(--bg-paper-darker);
  color: var(--text-dark-secondary);
}

.section--dark .comparison-table th {
  background: var(--bg-elevated);
  color: var(--text-secondary);
}

.comparison-table th:last-child {
  color: var(--accent-primary);
}

.section--paper .comparison-table th:last-child {
  color: var(--accent-dim);
}

.comparison-table td {
  color: var(--text-dark);
}

.section--dark .comparison-table td {
  color: var(--text-primary);
}

.comparison-table td:first-child {
  font-weight: 500;
  white-space: nowrap;
}

.comparison-table td:last-child {
  font-weight: 500;
}

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

.comparison-table .highlight-col {
  background: rgba(201, 162, 39, 0.08);
}

.section--paper .comparison-table .highlight-col {
  background: rgba(201, 162, 39, 0.10);
}

/* --- Data Block (mono-font comparison) --- */
.data-block {
  background: var(--bg-elevated);
  border: 1px solid var(--bg-subtle);
  border-radius: 12px;
  padding: var(--space-8);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 560px;
  overflow-x: auto;
}

.data-block .data-section-label {
  color: var(--text-tertiary);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-2);
  display: block;
}

.data-block .data-highlight {
  color: var(--accent-light);
}

.data-block .data-dim {
  color: var(--text-tertiary);
}

.data-block .data-success {
  color: var(--success);
}

.data-block-divider {
  border: none;
  border-top: 1px solid var(--bg-subtle);
  margin: var(--space-5) 0;
}

/* --- FAQ --- */
.faq-list {
  max-width: 720px;
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--bg-subtle);
  border-radius: 12px;
  overflow: hidden;
}

.faq-item {
  background: var(--bg-elevated);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  cursor: pointer;
  user-select: none;
  transition: background 150ms ease;
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 1rem;
  color: var(--text-primary);
}

.faq-question:hover {
  background: var(--bg-subtle);
}

.faq-chevron {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--text-tertiary);
  transition: transform 200ms ease;
}

.faq-item.open .faq-chevron {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 300ms ease, padding 200ms ease;
}

.faq-item.open .faq-answer {
  max-height: 400px;
}

.faq-answer-inner {
  padding: 0 var(--space-6) var(--space-6);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* --- Pricing Cards --- */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  max-width: 820px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
}

.pricing-card {
  background: var(--bg-elevated);
  border: 1px solid var(--bg-subtle);
  border-radius: 16px;
  padding: var(--space-10);
  display: flex;
  flex-direction: column;
}

.pricing-card--featured {
  border-color: var(--accent-primary);
  box-shadow: 0 0 40px rgba(201, 162, 39, 0.08);
  position: relative;
}

.pricing-card--featured::before {
  content: 'RECOMMENDED';
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-primary);
  color: var(--bg-primary);
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  padding: 4px 14px;
  border-radius: 20px;
}

.pricing-price {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: var(--space-2) 0;
}

.pricing-subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: var(--space-6);
}

.pricing-features {
  flex: 1;
  margin-bottom: var(--space-8);
}

.pricing-features li {
  padding: var(--space-2) 0;
  color: var(--text-secondary);
  font-size: 0.92rem;
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
}

.pricing-features li::before {
  content: '';
  flex-shrink: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent-dim);
  margin-top: 8px;
}

.pricing-features .cost-line {
  font-family: var(--font-mono);
  color: var(--accent-light);
  font-size: 0.85rem;
}

.pricing-note {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  margin-top: var(--space-3);
}

/* --- Use Case Result Tables --- */
.result-table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: 12px;
  border: 1px solid var(--bg-subtle);
  margin-top: var(--space-6);
}

.section--paper .result-table-wrapper {
  border-color: var(--bg-paper-border);
}

.result-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.result-table th {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: var(--space-3) var(--space-5);
  background: var(--bg-elevated);
  color: var(--text-tertiary);
  text-align: left;
  border-bottom: 1px solid var(--bg-subtle);
}

.section--paper .result-table th {
  background: var(--bg-paper-darker);
  color: var(--text-dark-secondary);
  border-bottom-color: var(--bg-paper-border);
}

.result-table td {
  padding: var(--space-3) var(--space-5);
  border-bottom: 1px solid rgba(26, 39, 64, 0.4);
  vertical-align: top;
}

.section--paper .result-table td {
  border-bottom-color: var(--bg-paper-border);
  color: var(--text-dark);
}

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

.result-table td:first-child {
  font-weight: 500;
  white-space: nowrap;
  color: var(--text-primary);
}

.section--paper .result-table td:first-child {
  color: var(--text-dark);
}

.result-table .source-cell {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-dim);
}

.section--paper .result-table .source-cell {
  color: var(--accent-dim);
}

.result-table .badge-active {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--success);
  font-weight: 500;
}

.result-table .badge-active::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
}

/* --- Use Case Section Layout --- */
.use-case-intro {
  max-width: 680px;
  margin-bottom: var(--space-8);
}

.use-case-intro h2 {
  margin-bottom: var(--space-5);
}

.use-case-intro .problem-text {
  color: var(--text-secondary);
  line-height: 1.7;
}

.section--paper .use-case-intro .problem-text {
  color: var(--text-dark-secondary);
}

.use-case-result {
  margin-top: var(--space-8);
  padding: var(--space-6);
  background: rgba(42, 157, 110, 0.05);
  border: 1px solid rgba(42, 157, 110, 0.15);
  border-radius: 10px;
}

.section--paper .use-case-result {
  background: rgba(42, 157, 110, 0.06);
  border-color: rgba(42, 157, 110, 0.15);
}

.use-case-result p {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--success);
}

/* --- Niche Cards --- */
.niche-card {
  background: var(--bg-elevated);
  border: 1px solid var(--bg-subtle);
  border-radius: 10px;
  padding: var(--space-6);
}

.niche-card h4 {
  font-size: 1rem;
  margin-bottom: var(--space-2);
  color: var(--text-primary);
}

.niche-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- Dossier Mock (Product Visual) --- */
.dossier-mock {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--bg-subtle);
  box-shadow:
    0 0 0 1px rgba(201, 162, 39, 0.08),
    0 20px 60px rgba(0, 0, 0, 0.4);
  margin-top: var(--space-10);
}

.dossier-mock-header {
  background: var(--bg-elevated);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--bg-subtle);
}

.dossier-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--bg-subtle);
}

.dossier-dot:nth-child(1) { background: #D44040; }
.dossier-dot:nth-child(2) { background: #D97706; }
.dossier-dot:nth-child(3) { background: #2A9D6E; }

.dossier-mock-body {
  background: var(--bg-primary);
  padding: var(--space-6);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.9;
  color: var(--text-secondary);
  min-height: 220px;
}

.dossier-mock-body .row {
  display: grid;
  grid-template-columns: 1fr 1fr 100px 90px;
  gap: var(--space-4);
  padding: 6px 0;
  border-bottom: 1px solid rgba(26, 39, 64, 0.3);
}

@media (max-width: 640px) {
  .dossier-mock-body .row {
    grid-template-columns: 1fr 1fr;
  }
  .dossier-mock-body .row > :nth-child(3),
  .dossier-mock-body .row > :nth-child(4) {
    display: none;
  }
}

.dossier-mock-body .row.header {
  color: var(--text-tertiary);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom-color: var(--bg-subtle);
}

.dossier-mock-body .status-active {
  color: var(--success);
}

.dossier-mock-body .status-closed {
  color: var(--danger);
}

.dossier-mock-body .status-misclassified {
  color: var(--text-tertiary);
}

.dossier-mock-body .confidence-high {
  color: var(--success);
}

.dossier-mock-body .confidence-medium {
  color: var(--warning);
}

/* --- Industry cards --- */
.industry-card {
  background: var(--bg-elevated);
  border: 1px solid var(--bg-subtle);
  border-radius: 12px;
  padding: var(--space-6) var(--space-8);
  transition: all 200ms ease;
}

.industry-card:hover {
  border-color: rgba(201, 162, 39, 0.15);
  transform: translateY(-2px);
}

.industry-card h3 {
  font-size: 1.1rem;
  margin-bottom: var(--space-2);
}

.industry-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- Footer --- */
.footer {
  background: var(--bg-primary);
  padding: var(--space-12) 0 var(--space-8);
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: -50vw;
  width: 200vw;
  height: 1px;
  background: var(--bg-subtle);
  pointer-events: none;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .footer-inner {
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: var(--space-16);
  }
}

.footer-brand p {
  color: var(--text-tertiary);
  font-size: 0.9rem;
  margin-top: var(--space-3);
  max-width: 280px;
}

.footer-links h4 {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-tertiary);
  margin-bottom: var(--space-4);
}

.footer-links a {
  display: block;
  padding: 4px 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color 150ms ease;
}

.footer-links a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  margin-top: var(--space-10);
  padding-top: var(--space-6);
  border-top: 1px solid var(--bg-subtle);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  font-size: 0.8rem;
  color: var(--text-tertiary);
}

.footer-legal {
  display: flex;
  gap: var(--space-5);
}

.footer-legal a,
.footer-powered a {
  color: var(--text-tertiary);
  transition: color 150ms ease;
}

.footer-legal a:hover,
.footer-powered a:hover {
  color: var(--text-secondary);
}

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* --- Gold Glow Pulse on Hero CTA --- */
@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 20px rgba(201, 162, 39, 0.2); }
  50% { box-shadow: 0 0 45px rgba(201, 162, 39, 0.4); }
}

.btn--glow {
  animation: glow-pulse 3s ease-in-out infinite;
}

/* --- Text Helpers --- */
.text-secondary { color: var(--text-secondary); }
.text-accent { color: var(--accent-primary); }
.text-success { color: var(--success); }

.text-center { text-align: center; }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-10 { margin-top: var(--space-10); }
.mt-12 { margin-top: var(--space-12); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.max-w-prose { max-width: 680px; }

/* --- Divider --- */
.divider {
  border: none;
  height: 1px;
  background: var(--bg-subtle);
  margin: var(--space-3) 0;
}

.section--paper .divider {
  background: var(--bg-paper-border);
}

/* (section separators now handled by full-bleed ::before rules on .section) */

/* --- Closing text after cards --- */
.section-closing {
  margin-top: var(--space-10);
  max-width: 600px;
  color: var(--text-secondary);
  font-style: italic;
}

.section--paper .section-closing {
  color: var(--text-dark-secondary);
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-subtle);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
}

/* --- Hero vignette (darken edges for depth) --- */
.hero::before {
  z-index: 0;
}

.hero-vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 40% 45%, transparent 0%, rgba(11, 18, 33, 0.5) 100%);
  pointer-events: none;
  z-index: 0;
}

/* --- Dossier mock row stagger animation --- */
@keyframes row-slide-in {
  from {
    opacity: 0;
    transform: translateX(-12px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.dossier-mock.in-view .row:not(.header) {
  animation: row-slide-in 0.4s ease forwards;
  opacity: 0;
}

.dossier-mock.in-view .row:nth-child(2) { animation-delay: 0.5s; }
.dossier-mock.in-view .row:nth-child(3) { animation-delay: 0.65s; }
.dossier-mock.in-view .row:nth-child(4) { animation-delay: 0.8s; }
.dossier-mock.in-view .row:nth-child(5) { animation-delay: 0.95s; }
.dossier-mock.in-view .row:nth-child(6) { animation-delay: 1.1s; }
.dossier-mock.in-view .row:nth-child(7) { animation-delay: 1.25s; }