/* ════════════════════════════════════════════════════════════
   BBC DESIGN SYSTEM v6.0 — SHARED STYLESHEET
   Modern. Classy. Still homey.
   Apple/Linear-tier polish. GSAP-choreographed scroll.
   bbc-styles-v6.css

   Usage on every page:
   <link rel="stylesheet" href="bbc-styles-v6.css" />

   Page-specific styles stay in each HTML file's <style> block.
   This file holds: tokens, reset, typography, layout, motion utilities,
   buttons, header, footer (with socials), shared section helpers,
   prefers-reduced-motion guard.
════════════════════════════════════════════════════════════ */

:root {
  --deep-blue:   #1F3557;
  --mid-blue:    #4B6FA5;
  --warm-blue:   #6D8FC7;
  --light-blue:  #A8C0DC;
  --pale-blue:   #DDE8F2;

  --bg-primary:  #F5F1EA;
  --bg-section:  #EDE8DF;
  --bg-card:     #FDFAF6;
  --bg-card-alt: #FAF6EF;
  --bg-dark:     #1C2E47;
  --bg-footer:   #172540;

  --neutral-100: #E8E2D6;
  --neutral-200: #D5CEC3;
  --neutral-300: #B8B1A6;
  --neutral-400: #9A9490;

  --text-ink:    #2A3040;
  --text-body:   #4E5666;
  --text-muted:  #888FA0;
  --text-warm:   #F5F1EA;

  --gold:        #B8923E;
  --gold-pale:   #E6CFA0;
  --gold-warm:   #D4A84B;
  --sage:        #4E9E74;

  --font-display:'Playfair Display', Georgia, serif;
  --font-body:   'Lora', Georgia, serif;
  --font-ui:     'DM Sans', system-ui, sans-serif;

  --max-width:   1240px;
  --max-narrow:  920px;
  --radius-sm:   10px;
  --radius:      18px;
  --radius-lg:   26px;
  --radius-xl:   36px;

  --shadow-xs:   0 1px 3px rgba(85,60,35,0.04), 0 1px 8px rgba(85,60,35,0.04);
  --shadow-sm:   0 2px 8px rgba(85,60,35,0.06), 0 4px 20px rgba(85,60,35,0.06);
  --shadow-md:   0 6px 18px rgba(85,60,35,0.08), 0 12px 40px rgba(85,60,35,0.09);
  --shadow-lg:   0 12px 32px rgba(85,60,35,0.10), 0 24px 64px rgba(85,60,35,0.12);
  --shadow-xl:   0 20px 50px rgba(85,60,35,0.13), 0 40px 96px rgba(85,60,35,0.15);
  --glow-gold:   0 0 32px rgba(184,146,62,0.18);
  --glow-warm:   0 8px 32px rgba(184,146,62,0.22);

  --border-card: 1px solid rgba(85,60,35,0.08);
  --border-warm: 1px solid rgba(85,60,35,0.12);
  --border-dark: 1px solid rgba(255,255,255,0.07);
  --border-glass:1px solid rgba(255,255,255,0.10);

  --s1: 0.5rem;  --s2: 1rem;   --s3: 1.5rem;
  --s4: 2.5rem;  --s5: 4rem;   --s6: 6rem;  --s7: 9rem;  --s8: 12rem;

  --ease-out-soft:   cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-expo:   cubic-bezier(0.19, 1, 0.22, 1);
  --ease-spring:     cubic-bezier(0.34, 1.56, 0.64, 1);
  --dur-fast:        180ms;
  --dur-base:        340ms;
  --dur-slow:        620ms;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--text-ink);
  background: var(--bg-primary);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  min-height: 100dvh;
}

body::after {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='400' height='400'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='400' height='400' filter='url(%23n)' opacity='0.022'/%3E%3C/svg%3E");
  pointer-events: none; z-index: 9998; mix-blend-mode: multiply;
}

.scroll-progress {
  position: fixed; top: 0; left: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--gold), var(--gold-warm));
  z-index: 9999;
  transition: width 100ms linear;
  box-shadow: 0 0 8px rgba(184,146,62,0.35);
}

/* TYPOGRAPHY */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.15;
  color: var(--deep-blue);
  letter-spacing: -0.012em;
}
h1 { font-size: clamp(2.4rem, 5.2vw, 4.2rem); line-height: 1.07; font-weight: 700; letter-spacing: -0.025em; }
h2 { font-size: clamp(1.85rem, 3.4vw, 2.85rem); line-height: 1.18; font-weight: 600; letter-spacing: -0.018em; }
h3 { font-size: clamp(1.05rem, 1.6vw, 1.3rem); font-weight: 600; letter-spacing: -0.01em; }
h4 { font-size: 0.95rem; font-family: var(--font-ui); font-weight: 700; letter-spacing: -0.005em; }

p { font-family: var(--font-body); font-size: 1.02rem; line-height: 1.78; color: var(--text-body); }
p.lead { font-size: 1.12rem; line-height: 1.78; color: var(--text-ink); }
a { text-decoration: none; color: inherit; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 0.7rem;
  font-family: var(--font-ui); font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--warm-blue); margin-bottom: var(--s2);
}
.eyebrow::before { content: ''; width: 22px; height: 1px; background: currentColor; opacity: 0.55; }
.eyebrow--gold { color: var(--gold); }
.eyebrow--pale { color: rgba(245,241,234,0.55); }

/* LAYOUT */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--s4); }
.container--narrow { max-width: var(--max-narrow); margin: 0 auto; padding: 0 var(--s4); }
.section        { padding: var(--s7) 0; position: relative; }
.section--tight { padding: var(--s5) 0; }
.section--warm  { background: var(--bg-section); }
.section--white { background: var(--bg-card); }
.section--dark  { background: var(--bg-dark); }
.section--cream { background: var(--bg-primary); }
.text-center    { text-align: center; }

.divider-bar {
  width: 56px; height: 2px;
  background: linear-gradient(90deg, var(--gold), var(--warm-blue));
  border-radius: 2px; margin: var(--s3) auto; opacity: 0.85;
}
.divider-bar--left { margin-left: 0; margin-right: auto; }

/* MOTION UTILITIES (initial state — JS animates to final) */
.reveal      { opacity: 0; transform: translate3d(0, 36px, 0); }
.reveal-soft { opacity: 0; transform: translate3d(0, 16px, 0); }
.reveal-fade { opacity: 0; }
.reveal-scale{ opacity: 0; transform: scale(0.96); }
.stagger-group > .stagger-item { opacity: 0; transform: translate3d(0, 24px, 0); }

/* BUTTONS */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.95rem 2.05rem;
  border-radius: 100px;
  font-family: var(--font-ui); font-size: 0.88rem; font-weight: 600;
  letter-spacing: 0.01em; cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out-soft),
              box-shadow var(--dur-fast) var(--ease-out-soft),
              background var(--dur-fast) var(--ease-out-soft),
              color var(--dur-fast) var(--ease-out-soft),
              border-color var(--dur-fast) var(--ease-out-soft);
  border: 1.5px solid transparent;
  white-space: nowrap;
  position: relative;
  will-change: transform;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); transition-duration: 80ms; }

.btn-primary { background: var(--deep-blue); color: var(--text-warm); }
.btn-primary:hover { background: #243f64; box-shadow: 0 14px 36px rgba(31,53,87,0.32); }

.btn-outline { background: transparent; color: var(--deep-blue); border-color: rgba(75,111,165,0.45); }
.btn-outline:hover { background: var(--deep-blue); color: var(--text-warm); border-color: var(--deep-blue); box-shadow: 0 14px 36px rgba(31,53,87,0.22); }

.btn-ghost { background: transparent; color: var(--text-warm); border-color: rgba(245,241,234,0.30); }
.btn-ghost:hover { background: rgba(245,241,234,0.08); border-color: rgba(245,241,234,0.6); }

.header__cta .btn-ghost,
.header__cta .btn-outline { color: var(--deep-blue); border-color: rgba(31,53,87,0.22); }
.header__cta .btn-ghost:hover,
.header__cta .btn-outline:hover { background: rgba(31,53,87,0.06); border-color: rgba(31,53,87,0.4); color: var(--deep-blue); }

.btn-gold {
  background: linear-gradient(135deg, var(--gold), var(--gold-warm));
  color: #fff; font-weight: 700;
  box-shadow: 0 4px 14px rgba(184,146,62,0.28);
}
.btn-gold:hover { box-shadow: 0 16px 40px rgba(184,146,62,0.42), var(--glow-gold); filter: brightness(1.04); }

.btn-warm-outline { background: transparent; color: var(--text-warm); border-color: rgba(245,241,234,0.30); }
.btn-warm-outline:hover { background: rgba(245,241,234,0.08); border-color: rgba(245,241,234,0.6); }

.btn-sm { padding: 0.66rem 1.4rem; font-size: 0.8rem; }

/* HEADER */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  background: rgba(245,241,234,0.78);
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  border-bottom: 1px solid rgba(85,60,35,0.06);
  transition: box-shadow var(--dur-base) var(--ease-out-soft),
              background var(--dur-base) var(--ease-out-soft),
              border-color var(--dur-base) var(--ease-out-soft);
}
.site-header.scrolled {
  background: rgba(245,241,234,0.92);
  box-shadow: 0 1px 0 rgba(85,60,35,0.06), 0 6px 24px rgba(85,60,35,0.06);
  border-bottom-color: rgba(85,60,35,0.10);
}
.header__inner {
  max-width: var(--max-width); margin: 0 auto; padding: 0 var(--s4);
  height: 72px; display: flex; align-items: center;
  justify-content: space-between; gap: var(--s3);
}
.header__logo { display: flex; align-items: center; gap: 0.65rem; }
.header__logo img { transition: transform var(--dur-base) var(--ease-out-soft); }
.header__logo:hover img { transform: scale(1.04); }
.header__logo-name {
  font-family: var(--font-display); font-size: 1.08rem; font-weight: 700;
  color: var(--deep-blue); line-height: 1; letter-spacing: -0.015em;
  white-space: nowrap;
}
.header__nav { display: flex; align-items: center; gap: 1.4rem; list-style: none; flex-wrap: nowrap; }
.header__nav li { white-space: nowrap; }
.header__nav a {
  font-family: var(--font-ui); font-size: 0.81rem; font-weight: 500;
  color: var(--text-body);
  transition: color var(--dur-fast) var(--ease-out-soft);
  position: relative; padding: 4px 0;
  white-space: nowrap;
}
.header__nav a::after {
  content: ''; position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 1.5px;
  background: var(--gold);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur-base) var(--ease-out-soft);
}
.header__nav a:hover { color: var(--deep-blue); }
.header__nav a:hover::after,
.header__nav a.active::after { transform: scaleX(1); }
.header__nav a.active { color: var(--deep-blue); font-weight: 600; }
.header__cta { display: flex; align-items: center; gap: 0.9rem; flex-shrink: 0; }

.hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; background: none; border: none; padding: 10px;
  min-width: 44px; min-height: 44px;
  justify-content: center; align-items: center;
}
.hamburger span {
  display: block; width: 22px; height: 2px;
  background: var(--text-ink); border-radius: 2px;
  transition: transform var(--dur-base) var(--ease-out-soft),
              opacity var(--dur-fast) var(--ease-out-soft);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none; flex-direction: column;
  background: var(--bg-card); border-top: var(--border-warm);
  padding: 1rem var(--s4) calc(1.5rem + env(safe-area-inset-bottom));
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-family: var(--font-ui); font-size: 0.95rem; font-weight: 500;
  color: var(--text-body); padding: 0.85rem 0;
  border-bottom: var(--border-card);
  transition: color var(--dur-fast) var(--ease-out-soft), padding-left var(--dur-fast) var(--ease-out-soft);
  min-height: 44px; display: flex; align-items: center;
}
.mobile-menu a:hover { color: var(--deep-blue); padding-left: 6px; }
.mobile-menu a:last-of-type { border-bottom: none; }
.mobile-menu .mobile-cta { margin-top: 1rem; justify-content: center; }

@media (max-width: 1024px) {
  .header__nav { display: none; }
  .hamburger { display: flex; }
}
@media (max-width: 768px) {
  .header__cta .btn-gold,
  .header__cta .btn-outline { display: none; }
}

/* FOOTER — supports both .footer and .site-footer naming */
.footer, .site-footer {
  background: var(--bg-footer);
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: var(--s6) 0 var(--s4);
  padding-bottom: calc(var(--s4) + env(safe-area-inset-bottom));
}
.footer__grid {
  max-width: var(--max-width); margin: 0 auto; padding: 0 var(--s4);
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--s5); margin-bottom: var(--s5);
}
@media (max-width: 900px) { .footer__grid { grid-template-columns: 1fr 1fr; gap: var(--s4); } }
@media (max-width: 540px) { .footer__grid { grid-template-columns: 1fr; gap: var(--s3); } }

.footer__brand-name {
  font-family: var(--font-display); font-size: 1.15rem; font-weight: 700;
  color: rgba(245,241,234,0.9); margin-bottom: 0.4rem;
  letter-spacing: -0.015em;
}
.footer__brand-sub {
  font-family: var(--font-ui); font-size: 0.6rem; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--warm-blue); opacity: 0.75; margin-bottom: 1rem;
}
.footer__brand-copy {
  font-family: var(--font-body); font-size: 0.88rem;
  line-height: 1.78; color: rgba(245,241,234,0.48);
  margin-bottom: 1.5rem;
}

/* SOCIAL STRIP (top of every footer) */
.footer-social-strip {
  max-width: var(--max-width);
  margin: 0 auto var(--s4);
  padding: 1.4rem var(--s4);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.2rem; flex-wrap: wrap;
}
.footer-social-strip__label {
  font-family: var(--font-ui); font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: rgba(245,241,234,0.5);
}
@media (max-width: 600px) {
  .footer-social-strip { justify-content: center; }
  .footer-social-strip__label { width: 100%; text-align: center; }
}

/* SOCIAL ICONS (footer) */
.footer__socials {
  display: flex; align-items: center; gap: 0.6rem;
  margin-top: 0;
}
.footer__social {
  width: 38px; height: 38px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: rgba(245,241,234,0.06);
  border: 1px solid rgba(245,241,234,0.10);
  color: rgba(245,241,234,0.65);
  transition: background var(--dur-fast) var(--ease-out-soft),
              border-color var(--dur-fast) var(--ease-out-soft),
              color var(--dur-fast) var(--ease-out-soft),
              transform var(--dur-fast) var(--ease-out-soft);
}
.footer__social:hover {
  background: rgba(184,146,62,0.18);
  border-color: rgba(184,146,62,0.45);
  color: var(--gold-pale);
  transform: translateY(-2px);
}
.footer__social svg { width: 18px; height: 18px; display: block; fill: currentColor; }

.footer__col-label {
  font-family: var(--font-ui); font-size: 0.66rem; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: rgba(245,241,234,0.4); margin-bottom: 1.1rem;
}
.footer__links { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
.footer__links a {
  font-family: var(--font-ui); font-size: 0.86rem;
  color: rgba(245,241,234,0.52);
  transition: color var(--dur-fast) var(--ease-out-soft), padding-left var(--dur-fast) var(--ease-out-soft);
}
.footer__links a:hover { color: rgba(245,241,234,0.9); padding-left: 4px; }

.footer__bottom {
  max-width: var(--max-width); margin: 0 auto; padding: var(--s3) var(--s4) 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap;
}
.footer__copyright {
  font-family: var(--font-ui); font-size: 0.74rem; color: rgba(245,241,234,0.3);
}

/* SHARED CARD PATTERNS (reusable across pages) */
.card-warm {
  background: var(--bg-card); border: var(--border-card);
  border-radius: var(--radius-lg); padding: 1.85rem 1.7rem;
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--dur-base) var(--ease-out-soft),
              transform var(--dur-base) var(--ease-out-soft),
              border-color var(--dur-base) var(--ease-out-soft);
  position: relative; overflow: hidden;
}
.card-warm::before {
  content: ''; position: absolute;
  top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--warm-blue));
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur-base) var(--ease-out-soft);
}
.card-warm:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-5px);
  border-color: rgba(184,146,62,0.18);
}
.card-warm:hover::before { transform: scaleX(1); }

.card-dark {
  background: linear-gradient(180deg, rgba(245,230,200,0.045) 0%, rgba(245,230,200,0.02) 100%);
  border: 1px solid rgba(245,230,200,0.09);
  border-radius: var(--radius);
  padding: 1.85rem 1.7rem;
  transition: background var(--dur-base) var(--ease-out-soft),
              border-color var(--dur-base) var(--ease-out-soft),
              transform var(--dur-base) var(--ease-out-soft);
}
.card-dark:hover {
  background: linear-gradient(180deg, rgba(245,230,200,0.09) 0%, rgba(245,230,200,0.04) 100%);
  border-color: rgba(245,230,200,0.16);
  transform: translateY(-4px);
}

/* REDUCED MOTION */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal, .reveal-soft, .reveal-fade, .reveal-scale,
  .stagger-group > .stagger-item {
    opacity: 1 !important;
    transform: none !important;
  }
}