*, *::before, *::after {
  box-sizing: border-box;
}

:root {
  --ink: #0F172A;
  --ink-muted: #475569;
  --surface: #FFFFFF;
  --surface-alt: #F8FAFC;
  --navy: #0B1727;
  --navy-soft: #17253B;
  --accent: #EA580C;
  --accent-dark: #C2410C;
  --accent-tint: #FFF7ED;
  --border: #CBD5E1;
  --border-strong: #64748B;
  --error: #B91C1C;
  --error-bg: #FEF2F2;
  --ok: #15803D;
  --ok-bg: #F0FDF4;
  --radius: 10px;
}

html {
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
  color: var(--ink);
  background: var(--surface-alt);
  scroll-padding-top: 5rem;
}

body {
  margin: 0;
}

.skip-link {
  position: absolute;
  inset-block-start: -100px;
  inset-inline-start: 1rem;
  z-index: 100;
  background: var(--navy);
  color: #FFFFFF;
  padding: 0.75rem 1rem;
  border-radius: 6px;
  font-weight: 700;
  text-decoration: none;
}

.skip-link:focus {
  inset-block-start: 1rem;
}

:where(a, button, input, select, textarea, summary, [tabindex]):focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.container {
  width: min(1040px, 100% - 2rem);
  margin-inline: auto;
}

/* Header */
.site-header {
  background: var(--navy);
  color: #FFFFFF;
  border-block-end: 3px solid var(--accent);
  padding-block: 0.9rem;
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem;
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  background: var(--accent);
  color: #FFFFFF;
  border-radius: 8px;
  flex-shrink: 0;
}

.brand-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.brand-sub {
  margin: 0;
  font-size: 0.8125rem;
  color: #CBD5E1;
}

.header-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.mode-nav {
  display: inline-flex;
  background: var(--navy-soft);
  border: 1px solid #334155;
  border-radius: 8px;
  padding: 3px;
  gap: 3px;
}

.mode-btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: #E2E8F0;
  font: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.55rem 0.9rem;
  min-block-size: 44px;
  border-radius: 6px;
  cursor: pointer;
}

.mode-btn[aria-pressed="true"] {
  background: var(--accent);
  color: #FFFFFF;
}

.header-call {
  display: inline-flex;
  align-items: center;
  min-block-size: 44px;
  padding: 0.55rem 1rem;
  background: #FFFFFF;
  color: var(--navy);
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  border-radius: 8px;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, #152338 100%);
  color: #FFFFFF;
  padding-block: 2.5rem;
  border-block-end: 1px solid #1E293B;
}

.eyebrow-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-block-end: 1rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.7rem;
  border-radius: 6px;
  font-size: 0.8125rem;
  font-weight: 700;
  background: #1E293B;
  color: #FDBA74;
  border: 1px solid #334155;
}

.pill-rating {
  background: var(--accent-tint);
  color: #9A3412;
  border-color: #FDBA74;
}

.hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.65rem, 3.6vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.hero-lead {
  margin: 0 0 1.5rem;
  max-width: 62ch;
  color: #E2E8F0;
  font-size: 1.0625rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Cards & Sections */
.section {
  padding-block: 2rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.05);
}

.card-accent {
  border-top: 4px solid var(--accent);
}

.card h2, .card h3 {
  margin-block-start: 0;
  color: var(--navy);
}

.list-clean {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.list-item {
  padding: 0.8rem 0.95rem;
  background: var(--surface-alt);
  border-inline-start: 3px solid var(--accent);
  border-radius: 6px;
  font-size: 0.95rem;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 0.75rem 0 0;
}

.chip-item {
  background: #1E293B;
  color: #FFFFFF;
  border: 1px solid #334155;
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 600;
}

/* Buttons */
.btn-primary, .btn-secondary {
  appearance: none;
  font: inherit;
  font-size: 1rem;
  font-weight: 700;
  min-block-size: 48px;
  padding: 0.7rem 1.25rem;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
}

.btn-primary {
  background: var(--accent-dark);
  color: #FFFFFF;
  border: 1px solid var(--accent-dark);
}

.btn-primary:hover {
  background: #9A3412;
}

.btn-secondary {
  background: #FFFFFF;
  color: var(--navy);
  border: 1.5px solid var(--border-strong);
}

.btn-secondary:hover {
  background: #F1F5F9;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-block-start: 1.25rem;
}

/* Accessible Form Controls (MWG Compliance) */
.form-stack {
  max-width: 580px;
}

.field {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.25rem;
  margin-block-end: 1.35rem;
}

.field label {
  font-weight: 700;
  color: var(--navy);
  display: inline-block;
  padding: 4px 0;
}

.req-star {
  color: var(--error);
  font-weight: 800;
}

.hint {
  display: block;
  color: var(--ink-muted);
  font-size: 0.875rem;
  margin-block-end: 0.2rem;
}

input[type="text"],
input[type="tel"],
textarea {
  font: inherit;
  font-size: max(1rem, 1em);
  line-height: 1.4;
  padding: 0.7rem 0.85rem;
  min-block-size: 48px;
  width: 100%;
  color: var(--ink);
  background: #FFFFFF;
  border: 1.5px solid var(--border-strong);
  border-radius: 8px;
}

.error-msg {
  display: none;
  color: var(--error);
  font-size: 0.9rem;
  font-weight: 600;
  margin-block-start: 0.3rem;
}

.error-badge {
  display: inline-grid;
  place-items: center;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: var(--error);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 800;
  margin-inline-end: 0.35rem;
}

:is(:user-invalid, .user-invalid-fallback) {
  border-color: var(--error);
  background-color: var(--error-bg);
}

:is(:user-invalid, .user-invalid-fallback) + .error-msg {
  display: block;
}

:is(:user-valid, .user-valid-fallback) {
  border-color: var(--ok);
}

fieldset.choice-group {
  border: 0;
  padding: 0;
  margin: 0 0 1.35rem;
}

fieldset.choice-group legend {
  font-weight: 700;
  color: var(--navy);
  margin-block-end: 0.65rem;
  padding: 0;
}

.choice-list {
  display: grid;
  gap: 0.55rem;
}

.choice-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.75rem 0.9rem;
  min-block-size: 48px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  background: #FFFFFF;
  cursor: pointer;
}

.choice-row:has(input:checked) {
  border-color: var(--accent-dark);
  background: var(--accent-tint);
}

.choice-row input[type="radio"],
.choice-row input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--accent-dark);
  margin: 0;
  flex-shrink: 0;
}

.choice-row label {
  flex: 1;
  font-weight: 600;
  cursor: pointer;
}

/* Progress Tracker */
.progress-tracker {
  list-style: none;
  padding: 0;
  margin: 0 0 1.35rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

.progress-step {
  padding: 0.55rem 0.7rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 700;
  border: 1px solid var(--border);
  background: var(--surface-alt);
  color: var(--ink-muted);
}

.progress-step.is-done {
  background: var(--ok-bg);
  border-color: #86EFAC;
  color: var(--ok);
}

.progress-step[aria-current="step"] {
  background: var(--navy);
  border-color: var(--navy);
  color: #FFFFFF;
}

/* Result & Snippet */
.result-banner {
  margin-block-start: 1.25rem;
  padding: 1.15rem 1.25rem;
  background: var(--ok-bg);
  border: 1.5px solid #86EFAC;
  border-radius: 8px;
  color: #14532D;
}

.snippet-box {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.15rem;
  white-space: pre-wrap;
  font-family: inherit;
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--ink);
}

.status-note {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--ok);
  margin-inline-start: 0.5rem;
}

.step-error {
  margin-block-start: 0.65rem;
  color: var(--error);
  font-weight: 700;
  font-size: 0.92rem;
}

.site-footer {
  margin-block-start: 2.5rem;
  padding-block: 1.5rem;
  border-block-start: 1px solid var(--border);
  background: #FFFFFF;
  font-size: 0.875rem;
  color: var(--ink-muted);
}

@media (pointer: coarse) {
  input[type="text"],
  input[type="tel"],
  textarea,
  .btn-primary,
  .btn-secondary,
  .choice-row {
    min-block-size: 52px;
  }
}