/* ============================================================
   Baytik Canada — Vancouver Arrival Hub
   Shared stylesheet for /arrival/* pages
   ============================================================
   Layered on top of /css/main.css (global nav + footer styling).
   Each page also appends its own scoped section below.
   ============================================================ */

/* ── DESIGN TOKENS (brief A3) ─────────────────────────────── */
:root {
  /* Colors */
  --arr-marine: #1B4B6B;
  --arr-marine-dark: #143850;
  --arr-marine-light: #2A6494;
  --arr-copper: #C4956A;
  --arr-copper-dark: #8E663F;
  --arr-ink: #1A1A1A;
  --arr-ink-soft: #3A3A3A;
  --arr-paper: #FAFAF7;
  --arr-mist: #E8E5DD;
  --arr-mist-soft: #F2F0EA;
  --arr-alert: #8C3F26;
  --arr-alert-soft: #FBEFE8;
  --arr-verified: #2D5A3D;
  --arr-verified-soft: #E8F0EA;

  /* Typography */
  --arr-display: 'Cormorant Garamond', Georgia, serif;
  --arr-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Type scale */
  --arr-h1: clamp(2.5rem, 5vw, 4.5rem);
  --arr-h2: clamp(1.75rem, 3vw, 2.5rem);
  --arr-h3: 1.375rem;
  --arr-body-lg: 1.125rem;
  --arr-body-size: 1rem;
  --arr-small: 0.875rem;

  /* Spacing scale (8px base) */
  --arr-space-1: 0.5rem;
  --arr-space-2: 1rem;
  --arr-space-3: 1.5rem;
  --arr-space-4: 2rem;
  --arr-space-6: 3rem;
  --arr-space-8: 4rem;
  --arr-space-12: 6rem;

  /* Layout */
  --arr-max-width: 1200px;
  --arr-reading-width: 680px;
  --arr-gutter: clamp(1rem, 4vw, 3rem);

  /* Misc */
  --arr-radius: 8px;
  --arr-radius-lg: 16px;
  --arr-shadow-sm: 0 2px 8px rgba(7, 27, 40, 0.08);
  --arr-shadow-md: 0 8px 24px rgba(7, 27, 40, 0.10);
  --arr-transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── RESET / BASE ─────────────────────────────────────────── */
.arrival-page,
.arrival-page * {
  box-sizing: border-box;
}

.arrival-page {
  background: var(--arr-paper);
  color: var(--arr-ink);
  font-family: var(--arr-body);
  font-size: var(--arr-body-size);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.arrival-page h1,
.arrival-page h2,
.arrival-page h3,
.arrival-page h4 {
  font-family: var(--arr-display);
  color: var(--arr-marine);
  font-weight: 500;
  line-height: 1.15;
  margin: 0 0 var(--arr-space-3);
}

.arrival-page h1 { font-size: var(--arr-h1); letter-spacing: -0.01em; }
.arrival-page h2 { font-size: var(--arr-h2); letter-spacing: -0.005em; }
.arrival-page h3 { font-size: var(--arr-h3); }
.arrival-page h4 { font-size: 1.125rem; font-weight: 600; }

.arrival-page p {
  margin: 0 0 var(--arr-space-3);
  color: var(--arr-ink);
}

.arrival-page p.lead {
  font-size: var(--arr-body-lg);
  color: var(--arr-ink-soft);
  line-height: 1.55;
}

.arrival-page a {
  color: var(--arr-marine);
  text-decoration: underline;
  text-decoration-color: rgba(27, 75, 107, 0.3);
  text-underline-offset: 3px;
  transition: var(--arr-transition);
}

.arrival-page a:hover {
  color: var(--arr-copper-dark);
  text-decoration-color: var(--arr-copper);
}

.arrival-page button {
  font-family: var(--arr-body);
  cursor: pointer;
  border: none;
  background: none;
}

.arrival-page ul,
.arrival-page ol {
  margin: 0 0 var(--arr-space-3);
  padding-left: 1.4rem;
  color: var(--arr-ink);
}

.arrival-page li {
  margin-bottom: var(--arr-space-1);
  line-height: 1.6;
}

.arrival-page strong {
  color: var(--arr-marine);
  font-weight: 600;
}

.arrival-page small,
.arrival-page .small {
  font-size: var(--arr-small);
  color: var(--arr-ink-soft);
}

/* ── LAYOUT CONTAINERS ────────────────────────────────────── */
.arrival-container {
  max-width: var(--arr-max-width);
  margin: 0 auto;
  padding: 0 var(--arr-gutter);
}

.arrival-prose {
  max-width: var(--arr-reading-width);
}

/* ── SUB-NAV ──────────────────────────────────────────────── */
.arrival-subnav {
  position: sticky;
  top: 70px; /* below global nav (existing nav is ~70px) */
  z-index: 50;
  background: var(--arr-paper);
  border-bottom: 1px solid var(--arr-mist);
  box-shadow: 0 1px 0 rgba(7, 27, 40, 0.04);
}

.arrival-subnav-inner {
  max-width: var(--arr-max-width);
  margin: 0 auto;
  padding: 0 var(--arr-gutter);
  display: flex;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.arrival-subnav-inner::-webkit-scrollbar { display: none; }

.arrival-subnav a {
  display: inline-block;
  padding: 0.95rem 1.1rem;
  font-family: var(--arr-body);
  font-size: 0.9rem;
  color: var(--arr-marine);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: var(--arr-transition);
  letter-spacing: 0.01em;
}

.arrival-subnav a:hover {
  border-bottom-color: var(--arr-marine);
  color: var(--arr-marine);
}

.arrival-subnav a[aria-current="page"] {
  background: var(--arr-marine);
  color: var(--arr-paper);
  border-bottom-color: var(--arr-marine);
}

.arrival-subnav a[aria-current="page"]:hover {
  background: var(--arr-marine-dark);
  color: var(--arr-paper);
}

@media (max-width: 768px) {
  .arrival-subnav { top: 60px; }
  .arrival-subnav a { padding: 0.85rem 0.9rem; font-size: 0.85rem; }
}

/* ── HERO PATTERN ─────────────────────────────────────────── */
.arrival-hero {
  padding: var(--arr-space-12) 0 var(--arr-space-8);
  background: var(--arr-paper);
}

.arrival-hero-inner {
  max-width: var(--arr-max-width);
  margin: 0 auto;
  padding: 0 var(--arr-gutter);
}

.hero-eyebrow {
  display: inline-block;
  font-family: var(--arr-body);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--arr-copper-dark);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: var(--arr-space-3);
}

.hero-h1 {
  font-family: var(--arr-display);
  font-size: var(--arr-h1);
  color: var(--arr-marine);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.015em;
  max-width: 18ch;
  margin: 0 0 var(--arr-space-4);
}

.hero-lead {
  font-family: var(--arr-body);
  font-size: var(--arr-body-lg);
  line-height: 1.55;
  color: var(--arr-ink-soft);
  max-width: 60ch;
  margin: 0;
}

.hero-actions {
  margin-top: var(--arr-space-6);
  display: flex;
  gap: var(--arr-space-2);
  flex-wrap: wrap;
}

/* ── BUTTONS ──────────────────────────────────────────────── */
.arr-btn {
  display: inline-block;
  padding: 0.95rem 1.7rem;
  border-radius: var(--arr-radius);
  font-family: var(--arr-body);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: var(--arr-transition);
  cursor: pointer;
  border: 1.5px solid transparent;
  line-height: 1.2;
}

.arr-btn-primary {
  background: var(--arr-marine);
  color: var(--arr-paper);
  border-color: var(--arr-marine);
}

.arr-btn-primary:hover {
  background: var(--arr-marine-dark);
  border-color: var(--arr-marine-dark);
  color: var(--arr-paper);
  text-decoration: none;
}

.arr-btn-secondary {
  background: transparent;
  color: var(--arr-copper-dark);
  border-color: var(--arr-copper);
}

.arr-btn-secondary:hover {
  background: var(--arr-copper-dark);
  color: var(--arr-paper);
  text-decoration: none;
}

/* ── SECTION SPACING ──────────────────────────────────────── */
.arrival-section {
  padding: var(--arr-space-8) 0;
}

.arrival-section + .arrival-section {
  border-top: 1px solid var(--arr-mist);
}

.arrival-section-eyebrow {
  display: inline-block;
  font-family: var(--arr-body);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--arr-copper-dark);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: var(--arr-space-2);
}

/* ── CARDS ────────────────────────────────────────────────── */
.arr-card {
  background: var(--arr-mist-soft);
  border: 1px solid var(--arr-mist);
  border-radius: var(--arr-radius-lg);
  padding: var(--arr-space-4);
  transition: var(--arr-transition);
}

/* ── FOCUS STATES (a11y) ──────────────────────────────────── */
.arrival-page a:focus-visible,
.arrival-page button:focus-visible,
.arrival-page input:focus-visible,
.arrival-page textarea:focus-visible,
.arrival-page select:focus-visible {
  outline: 2px solid var(--arr-marine);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ── SR-ONLY ──────────────────────────────────────────────── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Skip-to-content link: visually hidden until focused. */
.sr-only-focusable {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.sr-only-focusable:focus,
.sr-only-focusable:focus-visible {
  position: fixed;
  top: 0.5rem;
  left: 0.5rem;
  width: auto;
  height: auto;
  padding: 0.6rem 1.1rem;
  margin: 0;
  overflow: visible;
  clip: auto;
  background: var(--arr-marine);
  color: var(--arr-paper);
  border-radius: 4px;
  z-index: 1000;
  text-decoration: none;
  font-weight: 500;
  outline: 2px solid var(--arr-paper);
  outline-offset: 2px;
}

/* ── PREFERS-REDUCED-MOTION ──────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0ms !important;
    scroll-behavior: auto !important;
  }
}

/* ── PRINT BASE ───────────────────────────────────────────── */
@media print {
  @page { margin: 1.5cm; }

  .arrival-page {
    background: white;
    color: black;
    font-size: 11pt;
    line-height: 1.5;
  }

  .nav,
  .arrival-subnav,
  .footer,
  .whatsapp-float,
  .chatbot-toggle,
  .arr-btn,
  .hero-actions,
  .no-print {
    display: none !important;
  }

  .arrival-hero {
    padding: 0 0 1cm;
  }

  .arrival-page h1,
  .arrival-page h2,
  .arrival-page h3 {
    color: black;
    page-break-after: avoid;
  }

  .arrival-page a {
    color: black;
    text-decoration: underline;
  }

  .arr-card {
    background: white;
    border: 1px solid #ccc;
    page-break-inside: avoid;
  }
}

/* ============================================================
   PAGE-SPECIFIC STYLES
   Each page-drafting agent appends its own block below,
   namespaced (e.g. .timeline-*, .fraud-*) to avoid collision.
   ============================================================ */