:root {
  color-scheme: light;

  /* Colors — WKZ Atlas */
  --primary:      #2563EB;
  --primary-soft: #DBEAFE;
  --secondary:    #475569;
  --tertiary:     #0F172A;
  --surface:      #F5F7FB;
  --panel:        #FFFFFF;
  --neutral:      #D9E2EF;
  --accent-soft:  #DBEAFE;
  --success:      #16A34A;
  --success-soft: #ECFDF5;
  --warning:      #D97706;
  --warning-soft: #FFFBEB;
  --danger:       #DC2626;
  --danger-soft:  #FEF2F2;

  /* Pastel accents */
  --pastel-blue:      #E8EDF5;
  --pastel-lavender:  #EDEAF5;
  --pastel-peach:     #F5EDEA;
  --pastel-mint:      #EAF5ED;

  /* Typography */
  --font-display: "Inter", system-ui, sans-serif;
  --font-body:    "Inter", system-ui, sans-serif;
  --font-mono:    "JetBrains Mono", "SF Mono", "Fira Code", monospace;

  /* Geometry */
  --radius-sm:  10px;
  --radius-md:  14px;
  --radius-lg:  18px;
  --radius-pill: 999px;
  --border: 1px solid var(--neutral);

  /* Elevation — DESIGN.md Level 0–4 */
  --elevation-0: none;
  --elevation-1: 0 1px 2px rgba(15,23,42,.04);
  --elevation-2: 0 8px 24px rgba(15,23,42,.08);
  --elevation-3: 0 16px 40px rgba(37,99,235,.10);
  --elevation-4: 0 24px 64px rgba(15,23,42,.14);

  /* Motion */
  --duration-fast:  120ms;
  --duration-base:  180ms;
  --duration-slow:  240ms;
  --easing: cubic-bezier(0.2, 0.8, 0.2, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--tertiary);
  background: var(--surface);
}

.shell {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0.85rem;
}

.panel {
  background: var(--panel);
  border: var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--elevation-2);
}

.hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
  padding: 1rem;
  margin-bottom: 1rem;
  background: var(--pastel-blue);
  box-shadow: var(--elevation-3);
  overflow: hidden;
}

.hero-copy {
  max-width: 34rem;
}

.hero-visual {
  display: none;
}

.hero-img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 360px;
  object-fit: contain;
  object-position: bottom center;
}

.eyebrow {
  margin: 0 0 0.45rem;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--secondary);
}

.hero h1,
.panel h2 {
  margin: 0;
  font-family: var(--font-display);
  letter-spacing: -0.035em;
}

.hero h1 {
  max-width: 11ch;
  font-size: clamp(2rem, 8.4vw, 3.2rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.lede {
  max-width: 34ch;
  margin: 0.85rem 0 0;
  font-size: 0.97rem;
  line-height: 1.58;
  color: var(--secondary);
}

.hero-points,
.success-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.hero-points {
  margin-top: 1rem;
}

.info-panel {
  background: var(--pastel-lavender);
}

.step-panel {
  background: var(--pastel-blue);
}

.notice {
  margin-bottom: 1rem;
  padding: 1rem 1.1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--neutral);
}

.notice-error {
  color: var(--danger);
  background: var(--danger-soft);
  border-color: var(--danger);
}

.notice-warning {
  color: var(--warning);
  background: var(--warning-soft);
  border-color: var(--warning);
}

.grid-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
  margin-bottom: 1rem;
}

.step-panel,
.info-panel,
.form-panel,
.success-card {
  padding: 1rem;
}

.step-head {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.step-no {
  display: inline-grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: var(--pastel-peach);
  color: var(--primary);
  font-weight: 800;
  flex: 0 0 auto;
}

.stack-lg,
.stack-xl {
  display: grid;
}

.stack-lg {
  gap: 1rem;
}

.stack-xl {
  gap: 1.35rem;
}

.field-grid {
  display: grid;
  gap: 0.85rem;
}

.field-hint {
  margin: -0.35rem 0 0;
  padding: 0.95rem 1rem;
  border: 1px solid var(--neutral);
  border-radius: var(--radius-sm);
  background: var(--pastel-blue);
  color: var(--secondary);
  font-size: 0.92rem;
}

.field-hint p {
  margin: 0;
}

.field-hint p + p,
.field-hint ul + p,
.field-hint p + ul {
  margin-top: 0.55rem;
}

.field-hint ul {
  margin: 0;
  padding-left: 1.1rem;
}

.field-hint code {
  padding: 0.1rem 0.35rem;
  border-radius: 0.45rem;
  background: var(--primary-soft);
  color: var(--primary);
}

.payment-methods {
  display: grid;
  gap: 0.85rem;
}

.payment-option,
.confirm-check {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.9rem;
  border: 1px solid var(--neutral);
  border-radius: var(--radius-sm);
  background: var(--panel);
  transition: background var(--duration-fast) var(--easing);
}

.payment-option:hover,
.confirm-check:hover {
  background: var(--pastel-peach);
}

.payment-option input,
.confirm-check input {
  width: 1.1rem;
  min-height: auto;
  margin-top: 0.2rem;
  padding: 0;
}

.payment-option span,
.confirm-check span {
  display: grid;
  gap: 0.2rem;
}

.payment-option small {
  color: var(--secondary);
}

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

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

.three-up {
  grid-template-columns: 1fr;
}

.two-up {
  grid-template-columns: 1fr;
}

.span-2 {
  grid-column: auto;
}

label {
  display: grid;
  gap: 0.45rem;
  font-size: 0.92rem;
  font-weight: 700;
}

input,
select,
button,
textarea {
  font: inherit;
}

input,
select {
  width: 100%;
  min-height: 3rem;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--neutral);
  border-radius: var(--radius-sm);
  background: var(--panel);
  color: var(--tertiary);
  transition:
    border-color var(--duration-base) var(--easing),
    box-shadow var(--duration-base) var(--easing),
    transform var(--duration-base) var(--easing);
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-soft);
}

fieldset {
  margin: 0;
  padding: 0;
  border: 0;
}

legend {
  margin-bottom: 0.8rem;
  font-size: 0.98rem;
  font-weight: 800;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.85rem 1.15rem;
  border: 0;
  border-radius: var(--radius-pill);
  font-weight: 800;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition:
    transform var(--duration-base) var(--easing),
    box-shadow var(--duration-base) var(--easing),
    background var(--duration-base) var(--easing);
}

.button:hover {
  transform: translateY(-1px);
}

.button:disabled {
  cursor: wait;
  opacity: 0.7;
  transform: none;
}

.button-primary {
  color: #fff;
  background: var(--primary);
  box-shadow: var(--elevation-3);
}

.button-wide,
.button-strong {
  width: 100%;
}

.availability-result,
.form-panel {
  display: none;
}

.availability-result.is-visible,
.form-panel.is-visible {
  display: block;
}

.search-results {
  display: grid;
  gap: 0.8rem;
  margin-top: 0.9rem;
}

.search-results.is-hidden {
  display: none;
}

.search-result-list {
  display: grid;
  gap: 0.75rem;
}

.search-result-summary {
  margin: 0.65rem 0 0;
  color: var(--secondary);
  font-size: 0.92rem;
}

.search-result-item {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  gap: 0.8rem;
  padding: 0.9rem;
  border: 1px solid var(--neutral);
  border-radius: var(--radius-sm);
  background: var(--panel);
  transition: background var(--duration-fast) var(--easing);
}

.search-result-item:hover {
  background: var(--pastel-blue);
}

.search-result-copy {
  display: grid;
  gap: 0.25rem;
}

.search-result-copy strong {
  font-size: 1.02rem;
  letter-spacing: -0.03em;
}

.search-result-copy span {
  color: var(--secondary);
  font-size: 0.92rem;
}

.button-secondary {
  color: var(--tertiary);
  background: #fff;
  border: 1px solid var(--neutral);
  box-shadow: var(--elevation-2);
}

.result-card,
.selected-plate,
.submit-bar {
  border: var(--border);
  border-radius: var(--radius-sm);
  background: var(--panel);
}

.result-card {
  padding: 0.95rem;
}

.result-ok {
  background: var(--pastel-mint);
  border-color: var(--success);
}

.result-error {
  background: var(--danger-soft);
  border-color: var(--danger);
}

.result-label,
.selected-plate span {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.result-card strong,
.selected-plate strong,
.success-card h2 {
  display: block;
  margin-top: 0.45rem;
  font-size: clamp(1.4rem, 3vw, 2rem);
  letter-spacing: -0.04em;
}

.result-card p,
.info-note,
.submit-bar p,
.success-card p {
  margin: 0.65rem 0 0;
  color: var(--secondary);
}

.timeline {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: timeline;
}

.timeline li {
  position: relative;
  padding: 0 0 0.9rem 2.2rem;
  color: var(--secondary);
  counter-increment: timeline;
}

.timeline li::before {
  content: counter(timeline);
  position: absolute;
  left: 0;
  top: -0.05rem;
  display: grid;
  place-items: center;
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 50%;
  background: var(--pastel-lavender);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 800;
}

.selected-plate,
.submit-bar {
  padding: 0.95rem;
}

.selected-plate {
  background: var(--pastel-lavender);
}

.submit-bar {
  display: grid;
  gap: 0.9rem;
  background: var(--pastel-peach);
}

.success-card {
  display: grid;
  gap: 1rem;
  margin-bottom: 1rem;
  background: var(--pastel-mint);
  border-color: var(--success);
}

.success-eyebrow {
  color: var(--success);
}

.payment-summary-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  margin-bottom: 1rem;
}

.payment-box,
.summary-card {
  padding: 0.95rem;
  border: 1px solid var(--neutral);
  border-radius: var(--radius-sm);
  background: var(--panel);
}

.payment-box:first-child {
  background: var(--pastel-blue);
}

.payment-total-box {
  background: var(--pastel-lavender);
}

.checkout-copy {
  margin-bottom: 1rem;
  color: var(--secondary);
}

.summary-card h3 {
  margin: 0 0 0.9rem;
  letter-spacing: -0.02em;
}

.summary-list {
  display: grid;
  gap: 0.7rem;
  margin: 0;
}

.summary-list div {
  display: grid;
  gap: 0.25rem;
}

.summary-list dt {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--secondary);
}

.summary-list dd {
  margin: 0;
}

.sticky-cta {
  position: fixed;
  left: 0.85rem;
  right: 0.85rem;
  bottom: calc(0.85rem + env(safe-area-inset-bottom, 0px));
  z-index: 30;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.9rem;
  align-items: center;
  padding: 0.85rem 0.9rem;
  border: 1px solid var(--neutral);
  border-radius: var(--radius-md);
  background: var(--tertiary);
  box-shadow: var(--elevation-4);
  backdrop-filter: blur(16px);
}

.sticky-cta[hidden] {
  display: none;
}

.sticky-cta-copy {
  display: grid;
  gap: 0.2rem;
  min-width: 0;
}

.sticky-cta-label {
  color: var(--secondary);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.sticky-cta-title {
  color: #fff;
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.sticky-cta-button {
  min-height: 2.85rem;
  width: auto;
  padding-inline: 1rem;
  box-shadow: none;
}

body.has-sticky-cta {
  padding-bottom: 6.5rem;
}

@media (min-width: 720px) {
  .shell {
    padding: 1rem;
  }

  .hero {
    padding: 1.2rem;
  }

  .plate-grid,
  .filter-grid,
  .two-up,
  .payment-summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .search-result-item {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .sticky-cta {
    left: 1rem;
    right: 1rem;
  }
}

@media (min-width: 980px) {
  .hero,
  .grid-layout {
    gap: 1rem;
  }

  .hero {
    grid-template-columns: minmax(0, 1.5fr) minmax(260px, 0.8fr);
    padding: clamp(1.2rem, 2vw, 2rem);
  }

  .hero-visual {
    display: flex;
    align-items: flex-end;
    justify-content: center;
  }

  .hero-img {
    max-height: 400px;
    object-fit: contain;
    object-position: bottom center;
  }

  .grid-layout {
    grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.9fr);
  }

  .shell {
    padding: clamp(1rem, 3vw, 2rem);
  }

  .plate-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr) minmax(0, 0.8fr);
  }

  .three-up {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .span-2 {
    grid-column: span 2;
  }

  .hero h1 {
    max-width: 12ch;
    font-size: clamp(2.2rem, 4.8vw, 4rem);
  }

  .step-panel,
  .info-panel,
  .form-panel,
  .success-card {
    padding: clamp(1.1rem, 2vw, 1.6rem);
  }

  .sticky-cta {
    display: none;
  }

  body.has-sticky-cta {
    padding-bottom: 0;
  }
}