/* ============================================================
   Semestern — Design System & Component Styles
   ============================================================ */

/* --- Custom Properties --- */
:root {
  --bg:      #F9F8F6;
  --surface: #FFFFFF;
  --ink:     #0F1F3D;
  --ink2:    #4A5568;
  --ink3:    #9A9894;
  --teal:    #00B4A6;
  --teal2:   #009E91;
  --tl:      #E6F7F6;
  --border:  #E8E6E1;
  --success: #10B981;
  --r:       12px;
  --serif:   'DM Serif Display', Georgia, serif;
  --sans:    'DM Sans', system-ui, sans-serif;
  --mono:    'JetBrains Mono', monospace;
}

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

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

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink2);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

/* --- Typography Scale --- */
h1, .h1 {
  font-family: var(--serif);
  font-size: clamp(34px, 4.2vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink);
}

h2, .h2 {
  font-family: var(--serif);
  font-size: clamp(26px, 3.2vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ink);
}

h3, .h3 {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.body-lg {
  font-size: 17px;
  font-weight: 350;
  line-height: 1.7;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 14px;
  display: block;
}

.eyebrow-dark {
  color: rgba(255,255,255,0.4);
}

.stat-num {
  font-family: var(--serif);
  font-size: 36px;
  color: var(--teal);
  line-height: 1;
}

.mono-caption {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink3);
}

/* --- Layout Utilities --- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 48px;
}

.section {
  padding: 96px 48px;
}

.section-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.section--dark {
  background: var(--ink);
}

.section--dark h2,
.section--dark h3,
.section--dark .h2 {
  color: #fff;
}

.section--dark p,
.section--dark li {
  color: rgba(255,255,255,0.65);
}

.section--light { background: var(--bg); }
.section--white { background: var(--surface); }

/* --- Scroll Animations --- */
.fade-up {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Navigation --- */
#main-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 68px;
  background: rgba(249,248,246,0.93);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: border-color 0.2s ease, background 0.2s ease;
  border-bottom: 1px solid transparent;
}

#main-nav.scrolled {
  border-bottom-color: var(--border);
  background: rgba(249,248,246,0.97);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 48px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
}

.nav-logo-text {
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  flex: 1;
  justify-content: center;
}

.nav-links a {
  font-size: 14px;
  font-weight: 400;
  color: var(--ink2);
  transition: color 0.15s;
}

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

.nav-cta {
  background: var(--ink);
  color: #fff !important;
  padding: 9px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  transition: opacity 0.15s;
  flex-shrink: 0;
}

.nav-cta:hover { opacity: 0.85; }

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: all 0.25s;
}

.nav-mobile-panel {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(249,248,246,0.98);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  z-index: 99;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
}

.nav-mobile-panel.open {
  display: flex;
  opacity: 1;
  pointer-events: all;
}

.nav-mobile-panel a {
  font-size: 22px;
  font-weight: 500;
  color: var(--ink);
}

.nav-mobile-panel .nav-cta {
  font-size: 16px;
  padding: 13px 32px;
}

/* --- Footer --- */
#main-footer {
  background: var(--ink);
  padding: 64px 48px 32px;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 64px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 32px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 300px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-logo-text {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
}

.footer-tagline {
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  line-height: 1.6;
}

.footer-cols {
  display: flex;
  gap: 64px;
}

.footer-col h4 {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,0.55);
  margin-bottom: 10px;
  transition: color 0.15s;
}

.footer-col a:hover { color: #fff; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-copyright {
  font-size: 13px;
  color: rgba(255,255,255,0.35);
}

.footer-legal {
  display: flex;
  gap: 24px;
}

.footer-legal a {
  font-size: 13px;
  color: rgba(255,255,255,0.35);
  transition: color 0.15s;
}

.footer-legal a:hover { color: rgba(255,255,255,0.7); }

/* --- Hero Section --- */
.hero {
  padding: 96px 48px;
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-eyebrow-pill {
  display: inline-flex;
  align-items: center;
  background: var(--tl);
  color: var(--teal2);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-radius: 100px;
  padding: 5px 13px;
  margin-bottom: 20px;
}

.hero h1 { margin-bottom: 20px; }

.hero-sub {
  font-size: 17px;
  font-weight: 350;
  line-height: 1.7;
  color: var(--ink2);
  margin-bottom: 32px;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  background: var(--ink);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  padding: 13px 24px;
  border-radius: 9px;
  transition: opacity 0.15s;
  border: none;
  cursor: pointer;
}

.btn-primary:hover { opacity: 0.85; }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  background: transparent;
  color: var(--ink);
  font-size: 14px;
  font-weight: 500;
  padding: 12px 24px;
  border-radius: 9px;
  border: 1.5px solid var(--border);
  transition: border-color 0.15s, color 0.15s;
  cursor: pointer;
}

.btn-secondary:hover {
  border-color: var(--ink3);
  color: var(--ink);
}

.btn-teal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--teal);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  padding: 13px 24px;
  border-radius: 9px;
  transition: background 0.15s;
  border: none;
  cursor: pointer;
}

.btn-teal:hover { background: var(--teal2); }

/* --- Calendar Heatmap --- */
.heatmap-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 26px;
  box-shadow: 0 4px 28px rgba(0,0,0,0.07);
}

.heatmap-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink3);
  margin-bottom: 16px;
}

.heatmap-dow {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  margin-bottom: 6px;
}

.heatmap-dow span {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--ink3);
  text-align: center;
  text-transform: uppercase;
}

.heatmap-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.heatmap-grid .day {
  aspect-ratio: 1;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-family: var(--mono);
  color: var(--ink3);
}

.heatmap-grid .day.n  { background: #F4F3F0; }
.heatmap-grid .day.lo { background: #C8EDE9; color: var(--teal2); }
.heatmap-grid .day.md { background: #7DD6CF; color: #fff; }
.heatmap-grid .day.hi { background: #00B4A6; color: #fff; }
.heatmap-grid .day.empty { background: transparent; }

.heatmap-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 16px;
}

.heatmap-stat {
  background: var(--bg);
  border-radius: 8px;
  padding: 10px 12px;
}

.heatmap-stat-val {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1;
  margin-bottom: 4px;
}

.heatmap-stat-lbl {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink3);
}

/* --- Sector Pills Band --- */
.pill-band {
  padding: 20px 48px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  border-top: 1px solid var(--border);
}

.pill-band-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.pill-band-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink3);
  white-space: nowrap;
}

.pill-band-pill {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 6px 14px;
  font-size: 13px;
  color: var(--ink2);
}

/* --- Stat Bar --- */
.stat-bar {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 40px 48px;
}

.stat-bar-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-around;
  gap: 24px;
  flex-wrap: wrap;
}

.stat-bar-item {
  text-align: center;
}

.stat-bar-num {
  font-family: var(--serif);
  font-size: 38px;
  color: var(--teal);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-bar-lbl {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink3);
}

/* --- Problem Cards (dark) --- */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.problem-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--r);
  padding: 26px;
}

.problem-card-icon {
  font-size: 24px;
  margin-bottom: 14px;
}

.problem-card h3 {
  color: #fff;
  margin-bottom: 10px;
  font-size: 15px;
}

.problem-card p {
  font-size: 14px;
  line-height: 1.65;
  color: rgba(255,255,255,0.6);
}

/* --- Data Section --- */
.data-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.data-list {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.data-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  color: var(--ink2);
}

.data-list li::before {
  content: '→';
  color: var(--teal);
  font-weight: 600;
  flex-shrink: 0;
  margin-top: 1px;
}

.data-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.data-stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 22px;
}

.data-stat-card .num {
  font-family: var(--serif);
  font-size: 32px;
  color: var(--teal);
  line-height: 1;
  margin-bottom: 8px;
}

.data-stat-card .lbl {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink3);
}

.data-stat-card .desc {
  font-size: 13px;
  color: var(--ink2);
  margin-top: 6px;
}

/* --- Products Section --- */
.filter-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.filter-tab {
  padding: 7px 16px;
  border-radius: 100px;
  border: 1.5px solid var(--border);
  background: transparent;
  font-family: var(--sans);
  font-size: 13px;
  color: var(--ink2);
  cursor: pointer;
  transition: all 0.15s;
}

.filter-tab:hover {
  border-color: var(--ink3);
  color: var(--ink);
}

.filter-tab.active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.product-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 26px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.product-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
}

.product-tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: 4px;
  padding: 3px 8px;
  margin-bottom: 14px;
}

.tag-api    { background: #EEF9F8; color: var(--teal2); }
.tag-hist   { background: #FFF3E0; color: #E65100; }
.tag-pop    { background: #F3E8FF; color: #7C3AED; }

.product-card h3 {
  margin-bottom: 10px;
  font-size: 15px;
}

.product-card p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink2);
  margin-bottom: 14px;
}

.product-formats {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink3);
}

/* --- Sector Cards (dark) --- */
.sector-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.sector-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--r);
  padding: 26px;
}

.sector-card h3 {
  color: #fff;
  margin-bottom: 10px;
  font-size: 15px;
}

.sector-card p {
  font-size: 14px;
  line-height: 1.65;
  color: rgba(255,255,255,0.6);
}

/* --- UK Section --- */
.uk-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.uk-flag-label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.bar-chart-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 4px 28px rgba(0,0,0,0.07);
}

.bar-chart-title {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink3);
  margin-bottom: 20px;
}

.bar-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.bar-row:last-child { margin-bottom: 0; }

.bar-name {
  font-size: 12px;
  color: var(--ink2);
  width: 130px;
  flex-shrink: 0;
}

.bar-track {
  flex: 1;
  height: 6px;
  background: var(--bg);
  border-radius: 4px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  background: var(--teal);
  border-radius: 4px;
  transition: width 0.8s ease;
}

.bar-pct {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink3);
  width: 36px;
  text-align: right;
  flex-shrink: 0;
}

/* --- How It Works --- */
.how-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 48px;
}

.how-step-num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--teal);
  margin-bottom: 12px;
}

.how-rule {
  width: 36px;
  height: 2px;
  background: var(--teal);
  border-radius: 1px;
  margin-bottom: 16px;
}

.how-step h3 { margin-bottom: 10px; }

.how-step p {
  font-size: 14px;
  color: var(--ink2);
  line-height: 1.65;
}

/* --- Pricing --- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 48px;
  align-items: start;
}

.pricing-card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  position: relative;
}

.pricing-card--featured {
  border-color: var(--teal);
  background: #f0fefd;
}

.pricing-card--dark {
  background: var(--ink);
  border-color: transparent;
}

.pricing-card--dark h3,
.pricing-card--dark .price-amount,
.pricing-card--dark .price-tagline {
  color: #fff;
}

.pricing-card--dark .price-period,
.pricing-card--dark .feature-item {
  color: rgba(255,255,255,0.6);
}

.pricing-card--dark .feature-item.has { color: rgba(255,255,255,0.85); }

.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--teal);
  color: #fff;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 100px;
  white-space: nowrap;
}

.price-tier {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 12px;
}

.pricing-card--dark .price-tier { color: rgba(255,255,255,0.4); }

.price-amount {
  font-family: var(--serif);
  font-size: 36px;
  color: var(--ink);
  line-height: 1;
}

.price-period {
  font-size: 13px;
  color: var(--ink3);
  margin-bottom: 8px;
}

.price-tagline {
  font-size: 14px;
  color: var(--ink2);
  margin-bottom: 24px;
  min-height: 40px;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13px;
  color: var(--ink2);
  line-height: 1.5;
}

.feature-item .tick {
  color: var(--success);
  flex-shrink: 0;
  font-size: 14px;
  margin-top: 1px;
}

.feature-item .cross {
  color: var(--ink3);
  flex-shrink: 0;
  font-size: 14px;
  margin-top: 1px;
}

.pricing-cta {
  display: block;
  width: 100%;
  text-align: center;
  padding: 12px;
  border-radius: 9px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.15s;
}

.pricing-cta--outline {
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--ink);
}

.pricing-cta--outline:hover {
  border-color: var(--ink);
}

.pricing-cta--teal {
  background: var(--teal);
  color: #fff;
}

.pricing-cta--teal:hover { background: var(--teal2); }

.pricing-cta--dark {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.15);
}

.pricing-cta--dark:hover { background: rgba(255,255,255,0.15); }

.pricing-note {
  text-align: center;
  font-size: 13px;
  color: var(--ink3);
  margin-top: 24px;
}

/* --- CTA Strip --- */
.cta-strip {
  background: var(--teal);
  padding: 80px 48px;
  text-align: center;
}

.cta-strip h2 {
  color: #fff;
  margin-bottom: 14px;
}

.cta-strip p {
  color: rgba(255,255,255,0.8);
  font-size: 16px;
  margin-bottom: 32px;
}

.cta-strip .btn-white {
  display: inline-flex;
  align-items: center;
  background: #fff;
  color: var(--ink);
  font-size: 15px;
  font-weight: 500;
  padding: 14px 28px;
  border-radius: 9px;
  transition: opacity 0.15s;
}

.cta-strip .btn-white:hover { opacity: 0.9; }

/* --- Contact Cards (dark) --- */
.contact-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: 680px;
  margin: 40px auto 0;
}

.contact-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--r);
  padding: 26px;
}

.contact-card-icon {
  font-size: 24px;
  margin-bottom: 12px;
}

.contact-card h3 {
  color: #fff;
  margin-bottom: 10px;
}

.contact-card p {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  line-height: 1.65;
  margin-bottom: 14px;
}

.contact-card a {
  color: #6BCB96;
  font-size: 14px;
  font-weight: 500;
  transition: opacity 0.15s;
}

.contact-card a:hover { opacity: 0.8; }

/* --- Contact Form --- */
.contact-form-wrap {
  max-width: 640px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-family: var(--sans);
  font-size: 14px;
  color: var(--ink);
  background: var(--surface);
  outline: none;
  transition: border-color 0.15s;
}

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

.form-group textarea { resize: vertical; min-height: 100px; }

.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--ink2);
  cursor: pointer;
  font-weight: 400;
}

.form-submit {
  width: 100%;
  padding: 14px;
  background: var(--teal);
  color: #fff;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 500;
  border: none;
  border-radius: 9px;
  cursor: pointer;
  transition: background 0.15s;
}

.form-submit:hover { background: var(--teal2); }

.form-alt {
  text-align: center;
  margin-top: 20px;
  font-size: 13px;
  color: var(--ink3);
}

.form-alt a { color: var(--teal); }

.form-thankyou {
  display: none;
  text-align: center;
  padding: 40px;
}

.form-thankyou h3 {
  font-size: 22px;
  font-family: var(--serif);
  color: var(--ink);
  margin-bottom: 12px;
}

.form-thankyou p {
  font-size: 15px;
  color: var(--ink2);
}

/* --- Dark Hero --- */
.hero-dark {
  background: var(--ink);
  padding: 96px 48px;
  text-align: center;
}

.hero-dark h1 { color: #fff; margin-bottom: 16px; }
.hero-dark p {
  color: rgba(255,255,255,0.65);
  font-size: 17px;
  max-width: 600px;
  margin: 0 auto;
}

/* --- Table Styles --- */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.data-table th {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink3);
  text-align: left;
  padding: 10px 16px;
  border-bottom: 2px solid var(--border);
}

.data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--ink2);
  vertical-align: top;
}

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

.data-table tr:hover td { background: var(--bg); }

/* --- Code Block --- */
.code-block {
  background: #0d1b2e;
  border-radius: 12px;
  padding: 28px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.7;
}

.code-block .tok-comment { color: rgba(255,255,255,0.35); }
.code-block .tok-key  { color: #7DD6CF; }
.code-block .tok-str  { color: #86EFAC; }
.code-block .tok-num  { color: #FCD34D; }
.code-block .tok-punct { color: rgba(255,255,255,0.4); }
.code-block .tok-url  { color: #93C5FD; }

/* --- Nation Stat Row --- */
.nation-stat-row {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.nation-stat {
  text-align: center;
}

.nation-stat .n {
  font-family: var(--serif);
  font-size: 32px;
  color: var(--teal);
  line-height: 1;
}

.nation-stat .l {
  font-size: 13px;
  color: var(--ink2);
  margin-top: 4px;
}

/* --- Comparison Table --- */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.comparison-table th {
  background: var(--ink);
  color: #fff;
  padding: 14px 16px;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
}

.comparison-table th:first-child {
  text-align: left;
  background: var(--ink);
  border-radius: 0;
}

.comparison-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  text-align: center;
  color: var(--ink2);
}

.comparison-table td:first-child {
  text-align: left;
  font-weight: 500;
  color: var(--ink);
}

.comparison-table tr:last-child td { border-bottom: none; }
.comparison-table tr:nth-child(even) td { background: var(--bg); }

.comparison-table .check { color: var(--success); font-size: 16px; }
.comparison-table .cross { color: var(--ink3); font-size: 16px; }

/* --- FAQ --- */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}

.faq-item:last-child { border-bottom: none; }

.faq-q {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
}

.faq-a {
  font-size: 14px;
  color: var(--ink2);
  line-height: 1.65;
}

/* --- Use Case Section --- */
.use-case-section {
  padding: 80px 48px;
}

.use-case-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.use-case-section.alt { flex-direction: row-reverse; }

.use-case-key-list {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.use-case-key-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 14px;
  color: var(--ink2);
}

.use-case-key-list li::before {
  content: '→';
  color: var(--teal);
  font-weight: 600;
  flex-shrink: 0;
}

.use-case-section--dark .use-case-key-list li { color: rgba(255,255,255,0.65); }
.use-case-section--dark .use-case-key-list li::before { color: var(--teal); }

.use-case-badge {
  display: inline-block;
  background: var(--tl);
  color: var(--teal2);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 100px;
  margin-bottom: 14px;
}

.use-case-section--dark .use-case-badge {
  background: rgba(0,180,166,0.2);
  color: var(--teal);
}

/* --- Quality Grid (dark) --- */
.quality-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 40px;
}

.quality-card {
  background: var(--surface);
  border-radius: var(--r);
  padding: 24px;
}

.quality-card h3 { margin-bottom: 8px; }
.quality-card p { font-size: 14px; color: var(--ink2); }

/* --- Process Steps --- */
.process-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 40px;
}

.process-step {
  position: relative;
  padding-left: 52px;
}

.process-step-num {
  position: absolute;
  left: 0;
  top: 0;
  width: 36px;
  height: 36px;
  background: var(--tl);
  color: var(--teal);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
}

.process-step h3 { margin-bottom: 8px; }

.process-step p {
  font-size: 14px;
  color: var(--ink2);
  line-height: 1.65;
}

/* --- Historical Use Tiles --- */
.use-tile-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 32px;
}

.use-tile {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
}

.use-tile h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}

.use-tile p {
  font-size: 13px;
  color: var(--ink2);
  line-height: 1.6;
}

/* --- UK SVG Map --- */
.uk-map-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.map-legend {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.map-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: rgba(255,255,255,0.65);
}

.map-swatch {
  width: 12px;
  height: 12px;
  border-radius: 3px;
}

/* --- Section Header --- */
.section-header {
  max-width: 600px;
  margin-bottom: 48px;
}

.section-header p {
  margin-top: 14px;
  font-size: 16px;
  color: var(--ink2);
  line-height: 1.7;
}

.section-header--dark p { color: rgba(255,255,255,0.65); }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .hero { gap: 40px; }
}

@media (max-width: 768px) {
  .container, .section { padding-left: 24px; padding-right: 24px; }
  .hero { grid-template-columns: 1fr; padding: 64px 24px; }
  .hero-right { display: none; }
  .problem-grid, .sector-grid, .products-grid { grid-template-columns: 1fr; }
  .data-grid, .uk-grid { grid-template-columns: 1fr; }
  .how-grid, .pricing-grid { grid-template-columns: 1fr; }
  .contact-cards, .form-row { grid-template-columns: 1fr; }
  .use-case-inner { grid-template-columns: 1fr; }
  .stat-bar { padding: 32px 24px; }
  .stat-bar-inner { gap: 32px; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .pill-band { padding: 16px 24px; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-cols { gap: 32px; }
  .nation-stat-row { gap: 24px; }
  .process-steps, .use-tile-grid, .quality-grid { grid-template-columns: 1fr; }
  .nav-inner { padding: 0 24px; }
  .hero-dark { padding: 64px 24px; }
  .cta-strip { padding: 60px 24px; }
  #main-footer { padding: 48px 24px 24px; }
  .comparison-table { font-size: 12px; }
  .comparison-table th, .comparison-table td { padding: 8px; }
}

/* ============================================================
   New pricing model — archive and discount components
   ============================================================ */

.archive-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: #fff;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 100px;
  white-space: nowrap;
}

.archive-discount-box {
  background: var(--tl);
  border-radius: 8px;
  padding: 12px 14px;
  margin-top: 16px;
}

.archive-discount-box p {
  font-size: 12px;
  color: var(--teal2);
  font-weight: 500;
  line-height: 1.5;
}

.archive-discount-box .discount-examples {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--teal2);
  margin-top: 4px;
  letter-spacing: 0.5px;
}

.pcard.dark .archive-discount-box {
  background: rgba(255,255,255,0.08);
}

.pcard.dark .archive-discount-box p,
.pcard.dark .archive-discount-box .discount-examples {
  color: rgba(255,255,255,0.7);
}

.discount-callout {
  background: var(--tl);
  border-left: 3px solid var(--teal);
  border-radius: 8px;
  padding: 16px 20px;
  margin-top: 24px;
}

.discount-callout p {
  font-size: 14px;
  color: var(--ink2);
  line-height: 1.6;
}

.discount-callout .discount-prices {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--teal2);
  letter-spacing: 0.5px;
  margin-top: 6px;
}

.price-sublabel {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--teal);
  margin-top: 2px;
  margin-bottom: 10px;
}

.pcard.dark .price-sublabel {
  color: rgba(0,180,166,0.8);
}

.archive-price-note {
  background: #FFF8E6;
  border: 1px solid #F0D070;
  border-radius: 8px;
  padding: 14px 18px;
  margin-bottom: 36px;
  font-size: 13px;
  color: #7A5C00;
  line-height: 1.6;
}

.archive-price-note strong {
  font-weight: 600;
}

/* ── ANSWERS SECTION (index.html) ── */
.answers-sec { background: var(--surface); }

.answers-group-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--ink3);
  margin-bottom: 16px;
}
.answers-group-label.teal { color: var(--teal); }

.answers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 0;
}

.answer-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  transition: box-shadow 0.2s, transform 0.2s;
  position: relative;
}
.answer-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.07);
  transform: translateY(-2px);
}
.answer-card.answers-level { border-left: 3px solid var(--teal); }
.answer-card.archive-level { background: var(--surface); opacity: 0.9; }

.answer-card-q {
  font-family: var(--serif);
  font-size: 17px;
  color: var(--ink);
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}
.answer-card-body {
  font-size: 13px;
  color: var(--ink2);
  line-height: 1.65;
  margin-bottom: 14px;
}
.answer-card-endpoint {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--teal);
  letter-spacing: 0.3px;
}

.answer-archive-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  background: var(--ink);
  color: #fff;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 4px;
}

.answers-section-rule {
  border: none;
  border-top: 1px solid var(--border);
  margin: 40px 0;
}

.answers-closing-note {
  font-size: 13px;
  color: var(--ink3);
  text-align: center;
  margin-top: 40px;
  line-height: 1.6;
}

/* ── TIER DISTINCTION CALLOUT (pricing.html) ── */
.tier-distinction-callout {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 20px;
  margin: 24px 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  text-align: center;
}
.tier-distinction-when,
.tier-distinction-how {
  font-family: var(--serif);
  font-size: 22px;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.tier-distinction-when em,
.tier-distinction-how em { font-style: italic; color: var(--teal); }
.tier-distinction-sep { color: var(--border); font-size: 22px; }

/* ── IMPACT EXPLAINER BLOCK (pricing.html) ── */
.impact-explainer {
  background: var(--tl);
  border-radius: 8px;
  padding: 14px 16px;
  margin-top: 16px;
}
.impact-explainer-intro {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--teal2);
  margin-bottom: 10px;
}
.impact-explainer-list { list-style: none; }
.impact-explainer-list li {
  font-size: 12px;
  color: var(--ink2);
  padding: 5px 0;
  border-bottom: 1px solid rgba(0,180,166,0.12);
  line-height: 1.5;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.impact-explainer-list li:last-child { border-bottom: none; }
.iep { font-family: var(--mono); font-size: 11px; color: var(--teal); letter-spacing: 0.3px; }
.impact-explainer-link { display: inline-block; margin-top: 10px; font-size: 12px; font-weight: 500; color: var(--teal2); }

/* ── RESPONSIVE: ANSWERS SECTION ── */
@media (max-width: 960px) { .answers-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) {
  .answers-grid { grid-template-columns: 1fr; }
  .tier-distinction-callout { flex-direction: column; gap: 8px; }
}