/* VIP Auto Center design system.
   One place for colour, type, spacing, radius and shadow. Every page links this file;
   nothing sets a one-off value inline. */

:root {
  /* Colour */
  --color-bg: #0a0a0a;
  --color-surface: #151515;
  --color-surface-2: #1f1f1f;
  --color-border: #2a2a2a;
  --color-control-border: #6b7280;   /* field boundaries at 3.5:1 on the field colour (WCAG 1.4.11) */
  --color-text: #f3f4f6;
  --color-text-muted: #a3a9b4;     /* 7.6:1 on the surface colour */
  --color-brand: #c8102e;
  --color-brand-hover: #a50d26;
  --color-brand-text: #e8324f;     /* the brand red as text on dark surfaces: 4.5:1 (the fill red is 3.2:1) */
  --color-accent: #d4af37;
  --color-danger: #ff8a80;
  --color-focus: #d4af37;

  /* Type: one family, two roles. Body text at 16px, headings heavy and tight. */
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.5rem;
  --text-5xl: 3rem;
  --leading-tight: 1.15;
  --leading-body: 1.6;
  --measure: 65ch;

  /* Spacing on an 8px grid (4px half-step) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 999px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);

  --container: 1200px;
  --header-height: 72px;
  --duration: 150ms;
  --easing: ease;
  --transition: var(--duration) var(--easing);
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
/* In-page links land below the sticky header rather than under it. */
[id] { scroll-margin-top: calc(var(--header-height) + var(--space-4)); }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-text);
  background: var(--color-bg);
}
h1, h2, h3, h4 { line-height: var(--leading-tight); margin: 0 0 var(--space-4); font-weight: 800; letter-spacing: -0.01em; }
h1 { font-size: var(--text-4xl); font-weight: 900; text-transform: uppercase; letter-spacing: -0.02em; }
h2 { font-size: var(--text-3xl); font-weight: 900; text-transform: uppercase; }
h3 { font-size: var(--text-xl); }
p, ul, ol { margin: 0 0 var(--space-4); }
p:last-child { margin-bottom: 0; }
a { color: var(--color-accent); }
img, svg { display: block; max-width: 100%; }
button { font: inherit; }
:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; }
::placeholder { color: var(--color-text-muted); opacity: 1; }
.accent { color: var(--color-brand-text); }
.muted { color: var(--color-text-muted); }
.prose { max-width: var(--measure); }
.prose p, .prose li { color: #d1d5db; font-size: var(--text-lg); }
.center { text-align: center; }
.center .prose { margin-left: auto; margin-right: auto; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; top: -100px; left: var(--space-4); z-index: 3000;
  background: var(--color-accent); color: var(--color-bg); font-weight: 700;
  padding: var(--space-3) var(--space-4); border-radius: var(--radius-md); text-decoration: none;
}
.skip-link:focus { top: var(--space-4); }

/* Icons: one set (Lucide), one stroke width, sized by the surrounding text. */
.icon { width: 1.25em; height: 1.25em; flex: none; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.icon-lg { width: 2.5rem; height: 2.5rem; }
.icon-brand { fill: currentColor; stroke: none; }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--space-5); }
.section { padding: var(--space-8) 0; }
.section-title { text-align: center; margin-bottom: var(--space-3); font-size: clamp(1.5rem, 7vw, var(--text-3xl)); overflow-wrap: anywhere; }
.section-lead { text-align: center; color: var(--color-text-muted); font-size: var(--text-lg); max-width: var(--measure); margin: 0 auto var(--space-7); }
.grid { display: grid; gap: var(--space-5); grid-template-columns: 1fr; }
@media (min-width: 720px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } .grid-4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); } }

/* ---------- Header and navigation ---------- */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: var(--color-bg); border-bottom: 1px solid var(--color-border);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); min-height: var(--header-height); }
.brand { font-size: clamp(1rem, 4.5vw, var(--text-xl)); font-weight: 900; font-style: italic; letter-spacing: 0.04em; color: var(--color-accent); text-decoration: none; white-space: nowrap; }
.brand span { color: var(--color-brand-text); }
.nav-toggle {
  display: none; align-items: center; gap: var(--space-2);
  background: none; border: 1px solid var(--color-border); color: var(--color-text);
  padding: var(--space-2) var(--space-3); border-radius: var(--radius-md); cursor: pointer; font-weight: 600;
}
.nav-list { display: flex; align-items: center; gap: var(--space-5); list-style: none; margin: 0; padding: 0; }
.nav-list a { display: inline-flex; align-items: center; min-height: 44px; padding: var(--space-2) 0; color: var(--color-text); text-decoration: none; font-weight: 600; font-size: var(--text-sm); }
.nav-list a:hover { color: var(--color-brand-text); text-decoration: underline; }
.nav-list a.btn:hover { text-decoration: none; }
@media (max-width: 767px) {
  .nav-toggle { display: inline-flex; }
  .nav-list {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--color-surface); border-bottom: 1px solid var(--color-border);
  }
  .nav-list.is-open { display: flex; }
  .nav-list li { border-top: 1px solid var(--color-border); }
  .nav-list a { display: block; padding: var(--space-4) var(--space-5); font-size: var(--text-base); }
  .nav-list .btn { margin: var(--space-4) var(--space-5); }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  min-height: 48px; padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md); border: 2px solid transparent;
  font-weight: 700; font-size: var(--text-base); text-transform: uppercase; letter-spacing: 0.03em;
  text-decoration: none; cursor: pointer; white-space: nowrap;
  transition: background-color var(--transition), border-color var(--transition), color var(--transition);
}
.btn-primary { background: var(--color-brand); border-color: var(--color-brand); color: #fff; }
.btn-primary:hover { background: var(--color-brand-hover); border-color: var(--color-brand-hover); color: #fff; }
.btn-secondary { background: transparent; border-color: var(--color-text); color: var(--color-text); }
.btn-secondary:hover { background: var(--color-text); color: var(--color-bg); }
.btn-outline { background: transparent; border-color: var(--color-brand); color: var(--color-text); }
.btn-outline:hover { background: var(--color-brand); color: #fff; }
.btn-block { width: 100%; }
.btn-sm { min-height: 40px; padding: var(--space-2) var(--space-4); font-size: var(--text-sm); }
.btn[disabled] { border-color: var(--color-border); color: var(--color-text-muted); background: transparent; cursor: not-allowed; }

/* ---------- Hero ---------- */
.hero { position: relative; isolation: isolate; padding: var(--space-8) 0 var(--space-9); text-align: center; border-bottom: 2px solid var(--color-brand); overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: -1; width: 100%; height: 100%; object-fit: cover; opacity: 0.22; }
.hero-logo { width: 100%; max-width: 350px; height: auto; margin: 0 auto var(--space-6); }
.hero h1 { color: #fff; font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl)); }
.hero .lead { font-size: var(--text-xl); color: #d1d5db; max-width: 48ch; margin: 0 auto var(--space-6); }
.hero-actions { display: flex; gap: var(--space-4); flex-wrap: wrap; justify-content: center; }

/* ---------- Cards ---------- */
.card {
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-5); text-align: center; display: flex; flex-direction: column;
}
.card h3 { color: #fff; margin-bottom: var(--space-3); }
.card p { color: var(--color-text-muted); flex-grow: 1; margin-bottom: var(--space-5); }
.card .icon-lg { color: var(--color-accent); margin: 0 auto var(--space-4); }
.trust-grid { margin-top: calc(-1 * var(--space-7)); position: relative; z-index: 1; }
.badge {
  display: inline-block; align-self: center; margin-bottom: var(--space-4);
  padding: var(--space-1) var(--space-3); border-radius: var(--radius-full);
  font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em;
  background: var(--color-surface-2); color: var(--color-accent); border: 1px solid var(--color-border);
}
.badge-live { background: var(--color-brand); color: #fff; border-color: var(--color-brand); }

/* ---------- Feature panel (installations) ---------- */
.panel {
  background: var(--color-surface); border: 1px solid var(--color-border); border-top: 4px solid var(--color-brand);
  border-radius: var(--radius-lg); padding: var(--space-7) var(--space-5); text-align: center; max-width: 900px; margin: 0 auto;
}
@media (max-width: 480px) { .panel { padding: var(--space-6) var(--space-4); } .hero-actions .btn { width: 100%; } }
.panel .lead { font-size: var(--text-lg); color: #d1d5db; max-width: var(--measure); margin: 0 auto var(--space-5); }
.checklist { list-style: none; padding: 0; max-width: 600px; margin: 0 auto var(--space-6); text-align: left; }
.checklist li { display: flex; gap: var(--space-3); align-items: flex-start; color: var(--color-text-muted); font-size: var(--text-lg); margin-bottom: var(--space-2); }
.checklist .icon { color: var(--color-brand-text); margin-top: 0.3em; }

/* ---------- FAQ accordion ---------- */
.faq { display: flex; flex-direction: column; gap: var(--space-3); max-width: 900px; margin: 0 auto; }
.faq-item { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); overflow: hidden; }
.faq-item h3 { margin: 0; font-size: var(--text-lg); }
.faq-question {
  width: 100%; display: flex; justify-content: space-between; align-items: center; gap: var(--space-4);
  padding: var(--space-5); background: none; border: 0; color: #fff; text-align: left; font-weight: 700; cursor: pointer;
}
.faq-question:focus-visible { outline-offset: -3px; }
.faq-question .icon { color: var(--color-brand-text); transition: transform var(--transition); }
.faq-question[aria-expanded="true"] .icon { transform: rotate(180deg); }
.faq-answer { display: none; padding: 0 var(--space-5) var(--space-5); color: var(--color-text-muted); border-top: 1px solid var(--color-border); padding-top: var(--space-4); background: var(--color-surface-2); }
.faq-item.is-open .faq-answer { display: block; }

/* ---------- Footer ---------- */
.site-footer { background: #050505; border-top: 1px solid var(--color-border); padding: var(--space-8) 0 var(--space-6); text-align: center; }
.site-footer .brand { display: inline-block; font-size: var(--text-2xl); margin-bottom: var(--space-3); }
.site-footer p { color: var(--color-text-muted); }
.social { display: flex; justify-content: center; gap: var(--space-4); list-style: none; padding: 0; margin: var(--space-5) 0; }
.social a {
  display: inline-flex; align-items: center; justify-content: center; width: 48px; height: 48px;
  border-radius: var(--radius-full); background: var(--color-surface-2); color: #fff;
  transition: background-color var(--transition);
}
.social a:hover { background: var(--color-brand); }
.footer-email { display: inline-block; padding: var(--space-3) 0; color: var(--color-text); font-weight: 700; font-size: var(--text-lg); text-decoration: none; overflow-wrap: anywhere; }
.footer-legal { border-top: 1px solid var(--color-border); margin-top: var(--space-6); padding-top: var(--space-5); font-size: var(--text-sm); color: var(--color-text-muted); }
.footer-legal small { display: block; margin-top: var(--space-2); font-size: 0.8rem; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-2) var(--space-4); list-style: none; padding: 0; margin: var(--space-4) 0 0; }
.footer-links a { color: var(--color-text); }

/* ---------- Dialog ---------- */
.dialog-backdrop {
  position: fixed; inset: 0; z-index: 2000; padding: var(--space-5);
  display: flex; align-items: center; justify-content: center;
  background: rgba(0, 0, 0, 0.8);
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity var(--duration) var(--easing), visibility 0s linear var(--duration);
}
.dialog-backdrop.is-open { opacity: 1; visibility: visible; pointer-events: auto; transition: opacity var(--transition), visibility 0s; }
.dialog {
  position: relative; width: 100%; max-width: 550px; max-height: 90vh; overflow-y: auto;
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  padding: var(--space-6); box-shadow: var(--shadow-md);
}
.dialog h2 { font-size: var(--text-2xl); margin-bottom: var(--space-2); padding-right: var(--space-8); }
.dialog .lead { color: var(--color-text-muted); margin-bottom: var(--space-5); }
.dialog-close {
  position: absolute; top: var(--space-2); right: var(--space-2); width: 44px; height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
  background: none; border: 0; color: var(--color-text-muted); cursor: pointer; border-radius: var(--radius-md);
}
.dialog-close:hover { color: #fff; }

/* ---------- Forms ---------- */
.field { margin-bottom: var(--space-5); text-align: left; }
.field label { display: block; font-weight: 600; font-size: var(--text-sm); text-transform: uppercase; letter-spacing: 0.04em; color: #d1d5db; margin-bottom: var(--space-2); }
.field input, .field textarea, .field select {
  width: 100%; padding: var(--space-3) var(--space-4); font: inherit; color: #fff;
  background: var(--color-surface-2); border: 1px solid var(--color-control-border); border-radius: var(--radius-md);
}
.field input:focus, .field textarea:focus { border-color: var(--color-brand); }
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] { border-color: var(--color-danger); }
.error-text { color: var(--color-danger); font-size: var(--text-sm); margin: var(--space-2) 0 0; }
.error-text:empty { display: none; }
.form-status { margin-top: var(--space-4); text-align: center; font-size: var(--text-sm); }
.form-status:empty { display: none; }
.form-note { text-align: center; font-size: var(--text-sm); color: var(--color-text-muted); margin-top: var(--space-4); }

/* ---------- Secondary pages ---------- */
.page { padding: var(--space-8) 0; }
.page .prose { margin: 0 auto; }
.page h1 { font-size: var(--text-3xl); }
.page h2 { font-size: var(--text-xl); text-transform: none; margin-top: var(--space-7); }
.page .updated { color: var(--color-text-muted); font-size: var(--text-sm); }

/* ---------- Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}