:root {
  --ink: #0a1733;
  --ink-2: #13224a;
  --ink-3: #1e3163;
  --paper: #f4f1ea;
  --paper-2: #ebe6d9;
  --gold: #b8893a;
  --gold-deep: #8a6424;
  --eu-yellow: #FFCC00;
  --rule: rgba(10, 23, 51, 0.12);
  --rule-strong: rgba(10, 23, 51, 0.35);
  --serif: 'Fraunces', serif;
  --sans: 'IBM Plex Sans', sans-serif;
  --mono: 'IBM Plex Mono', monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(10, 23, 51, 0.035) 1px, transparent 0);
  background-size: 24px 24px;
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 1;
}

/* Official strip */
.official-strip {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 8px 0;
}
.official-strip .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.stars { color: var(--eu-yellow); }
.status-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: #4ade80;
  display: inline-block;
  margin-right: 6px;
  box-shadow: 0 0 8px #4ade80;
}

/* Nav */
nav {
  background: rgba(244, 241, 234, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--rule);
  padding: 18px 0;
}
nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  transition: color 0.15s ease;
}
.logo:hover { color: var(--gold-deep); }
.logo-mark {
  width: 28px; height: 28px;
  background: var(--ink);
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 2px;
  padding: 4px;
}
.logo-mark span { background: var(--paper); }
.logo-mark span:nth-child(4) { background: var(--gold); }
.nav-back {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  text-decoration: none;
  text-transform: uppercase;
}
.nav-back:hover { color: var(--ink); }

/* Progress bar */
.progress-bar {
  padding: 24px 0 0;
}
.progress-bar .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.progress-step {
  padding: 16px 0;
  border-top: 2px solid var(--rule);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-2);
  position: relative;
  transition: all 0.3s;
}
.progress-step.active {
  border-top-color: var(--ink);
  color: var(--ink);
  font-weight: 600;
}
.progress-step.done {
  border-top-color: var(--gold);
  color: var(--gold-deep);
}
.progress-step .num {
  font-family: var(--mono);
  margin-right: 8px;
  color: inherit;
}

/* Header */
.selector-header {
  padding: 64px 0 48px;
}
.header-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold-deep);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.header-label::before {
  content: '';
  width: 32px; height: 1px;
  background: var(--gold-deep);
}
.selector-header h1 {
  font-family: var(--serif);
  font-size: clamp(40px, 5vw, 64px);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.02;
  margin-bottom: 20px;
  max-width: 900px;
}
.selector-header h1 em {
  font-style: italic;
  color: var(--gold-deep);
}
.selector-header p {
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 680px;
}

/* Notice callout */
.notice {
  margin: 16px 0 0;
  padding: 16px 20px;
  background: rgba(184, 137, 58, 0.08);
  border-left: 3px solid var(--gold);
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 680px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.notice .icon {
  font-family: var(--serif);
  font-style: italic;
  font-size: 22px;
  line-height: 1;
  color: var(--gold-deep);
  flex-shrink: 0;
  margin-top: -2px;
}
.notice strong { color: var(--ink); font-weight: 600; }

/* Sector selection grid */
.selector-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-bottom: 40px;
}
.sector-option {
  background: #fdfbf5;
  border: 1px solid var(--rule);
  padding: 28px;
  cursor: pointer;
  transition: all 0.25s ease;
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 320px;
}
.sector-option::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--card-accent, var(--ink));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.sector-option:hover {
  border-color: var(--card-accent, var(--ink));
  background: #fefcf6;
}
.sector-option:hover::before {
  transform: scaleX(1);
}
.sector-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.sector-option.selected {
  border-color: var(--card-accent, var(--ink));
  background: linear-gradient(to bottom right, #fdfbf5, #f4eddd);
  box-shadow: 0 8px 30px rgba(10, 23, 51, 0.08);
}
.sector-option.selected::before {
  transform: scaleX(1);
  height: 5px;
}
.sector-option.selected .select-indicator {
  background: var(--card-accent, var(--ink));
  border-color: var(--card-accent, var(--ink));
}
.sector-option.selected .select-indicator::after {
  opacity: 1;
  transform: scale(1);
}

.sector-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}
.sector-icon {
  width: 44px; height: 44px;
  background: var(--card-accent, var(--ink));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}
.sector-icon svg {
  width: 24px; height: 24px;
}
.select-indicator {
  width: 22px; height: 22px;
  border-radius: 50%;
  border: 2px solid var(--rule-strong);
  background: transparent;
  position: relative;
  transition: all 0.2s;
  flex-shrink: 0;
}
.select-indicator::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 8px; height: 8px;
  background: white;
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0);
  opacity: 0;
  transition: all 0.2s;
}

.sector-code {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--ink-2);
  margin-bottom: 6px;
}
.sector-option h3 {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin-bottom: 10px;
}
.sector-option .reg {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-2);
  margin-bottom: 16px;
}
.sector-option p {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--ink-2);
  flex-grow: 1;
  margin-bottom: 18px;
}
.sector-meta {
  display: flex;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--rule);
  font-size: 12px;
}
.sector-meta .label {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.sector-meta .value {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 13px;
  color: var(--ink);
}

/* Accents */
.card-battery { --card-accent: #2d5a3f; }
.card-construction { --card-accent: #8a6424; }
.card-textile { --card-accent: #7a2e4d; }
.card-electronics { --card-accent: #1e3a8a; }
.card-tyre { --card-accent: #1a1a1a; }

/* Footer action bar */
.action-bar {
  position: sticky;
  bottom: 0;
  background: rgba(244, 241, 234, 0.96);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--rule);
  padding: 20px 0;
  z-index: 10;
}
.action-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}
.selected-summary {
  font-size: 14px;
  color: var(--ink-2);
  min-height: 20px;
}
.selected-summary strong {
  color: var(--ink);
  font-family: var(--serif);
  font-weight: 600;
  font-size: 16px;
}
.selected-summary .reg-code {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--gold-deep);
  margin-left: 8px;
}
.action-buttons {
  display: flex;
  gap: 12px;
  align-items: center;
}
.btn-primary {
  background: var(--ink);
  color: var(--paper);
  padding: 14px 28px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  border: 1px solid var(--ink);
  cursor: pointer;
  font-family: var(--sans);
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.btn-primary:not(:disabled):hover {
  background: var(--ink-3);
  gap: 14px;
}
.btn-primary:disabled {
  background: var(--rule-strong);
  border-color: var(--rule-strong);
  color: rgba(244, 241, 234, 0.7);
  cursor: not-allowed;
}
.btn-ghost {
  color: var(--ink);
  padding: 14px 22px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid var(--rule-strong);
  background: transparent;
  cursor: pointer;
  font-family: var(--sans);
  transition: all 0.2s;
}
.btn-ghost:hover { border-color: var(--ink); }

/* Footnote */
.footnote {
  padding: 40px 0 100px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-2);
  letter-spacing: 0.04em;
  text-align: center;
  border-top: 1px solid var(--rule);
  margin-top: 40px;
}
.footnote a { color: var(--gold-deep); text-decoration: none; }

@media (max-width: 1024px) {
  .selector-grid { grid-template-columns: repeat(2, 1fr); }
  .progress-bar .container { grid-template-columns: repeat(4, 1fr); gap: 8px; }
  .progress-step { font-size: 9px; }
}
@media (max-width: 640px) {
  .container { padding: 0 20px; }
  .selector-header { padding: 40px 0 32px; }
  .selector-grid { grid-template-columns: 1fr; }
  .action-bar .container { flex-direction: column; align-items: stretch; }
  .action-buttons { width: 100%; }
  .btn-primary { flex: 1; justify-content: center; }
  .progress-step .label-full { display: none; }
}