/* ============================================================
   UK FAST SERVICES LTD — BASE CSS
   Design: Light liquid glass — brand navy #1B2A44 & gold #C9A227
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600&display=swap');

/* ── Variables ──────────────────────────────────────────── */
:root {
  /* Background & surfaces */
  --col-bg:           #F5F6FA;
  --col-surface:      rgba(255, 255, 255, 0.60);
  --col-surface-2:    rgba(255, 255, 255, 0.80);
  --col-surface-solid: #FFFFFF;

  /* Borders */
  --col-border:       rgba(27, 42, 68, 0.08);
  --col-border-glass: rgba(255, 255, 255, 0.70);

  /* Brand colours */
  --col-navy:         #1B2A44;
  --col-navy-light:   #2D4A6E;
  --col-gold:         #C9A227;
  --col-gold-light:   #E0B93A;
  --col-gold-dim:     rgba(201, 162, 39, 0.12);
  --col-gold-border:  rgba(201, 162, 39, 0.25);

  /* Text */
  --col-white:        #FFFFFF;
  --col-off-white:    #F5F6FA;
  --col-text:         #1B2A44;
  --col-muted:        #64748B;
  --col-muted-2:      #94A3B8;

  /* Typography */
  --font-display: 'Plus Jakarta Sans', sans-serif;
  --font-body:    'Inter', sans-serif;

  /* Sizing */
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  32px;

  /* Spacing */
  --space-xs:   0.5rem;
  --space-sm:   1rem;
  --space-md:   2rem;
  --space-lg:   4rem;
  --space-xl:   7rem;

  /* Transitions */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur:  0.35s;

  /* Shadows */
  --shadow-gold: 0 0 40px rgba(201, 162, 39, 0.20);
  --shadow-card: 0 8px 32px rgba(27, 42, 68, 0.08);
  --shadow-glass: 0 4px 24px rgba(27, 42, 68, 0.06);

  /* Glass recipe shorthand */
  --glass-bg:     rgba(255, 255, 255, 0.60);
  --glass-blur:   blur(24px) saturate(160%);
  --glass-border: 1px solid rgba(255, 255, 255, 0.70);
}

/* ── Reset ──────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--col-bg);
  background-image:
    radial-gradient(ellipse 70% 50% at 80% 10%, rgba(201, 162, 39, 0.07) 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 15% 60%, rgba(27, 42, 68, 0.04) 0%, transparent 55%),
    radial-gradient(ellipse 45% 35% at 50% 100%, rgba(201, 162, 39, 0.04) 0%, transparent 60%),
    linear-gradient(160deg, #EEF1F8 0%, #F5F6FA 55%, #F0F3FA 100%);
  background-attachment: fixed;
  color: var(--col-text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ── Typography ─────────────────────────────────────────── */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  color: var(--col-navy);
}

h1 { font-size: clamp(2.4rem, 6vw, 4.5rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 4vw, 3rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.7rem); }
h4 { font-size: 1.1rem; font-weight: 600; }

p { color: var(--col-muted); font-size: 1rem; line-height: 1.8; }

.label {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--col-gold);
}

/* ── Layout ─────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section      { padding: var(--space-xl) 0; }
.section--sm  { padding: var(--space-lg) 0; }

/* ── Buttons ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: var(--radius-xl);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  transition: all var(--dur) var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--col-gold);
  color: var(--col-navy);
}
.btn-primary:hover {
  background: var(--col-gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(201, 162, 39, 0.35);
}

.btn-outline {
  border: 1.5px solid var(--col-navy);
  color: var(--col-navy);
  background: rgba(27, 42, 68, 0.04);
}
.btn-outline:hover {
  border-color: var(--col-gold);
  color: var(--col-gold);
  background: var(--col-gold-dim);
}

.btn-ghost {
  color: var(--col-gold);
  padding: 0.85rem 0;
}
.btn-ghost::after {
  content: '→';
  transition: transform var(--dur) var(--ease);
}
.btn-ghost:hover::after { transform: translateX(4px); }

/* ── Cards (Glass morphism) ─────────────────────────────── */
.card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  box-shadow: var(--shadow-card);
  transition: border-color var(--dur) var(--ease),
              transform var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}

.card:hover {
  border-color: var(--col-gold-border);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card), var(--shadow-gold);
}

/* ── Gold divider ───────────────────────────────────────── */
.gold-line {
  width: 3rem;
  height: 2px;
  background: var(--col-gold);
  margin-bottom: var(--space-sm);
}

/* ── Section heading ────────────────────────────────────── */
.section-head {
  margin-bottom: var(--space-lg);
}
.section-head p {
  max-width: 540px;
  margin-top: var(--space-xs);
}

/* ── Subtle noise overlay ───────────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
  opacity: 0.012;
  pointer-events: none;
  z-index: 9999;
}

/* ── Scroll reveal ──────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ── Responsive helpers ─────────────────────────────────── */
@media (max-width: 1024px) {
  :root {
    --space-xl: 4.5rem;
    --space-lg: 3rem;
  }
}

@media (max-width: 768px) {
  :root {
    --space-xl: 3.5rem;
    --space-lg: 2.5rem;
  }
}