:root {
  --colour-primary: #1B4F8A;
  --colour-primary-dark: #123A66;
  --colour-accent: #C48B4A;
  --colour-bg: #F7F5F0;
  --colour-surface: #FFFFFF;
  --colour-text: #1F2328;
  --colour-muted: #5A6270;
  --colour-border: #E3DFD7;
  --radius-card: 14px;
  --radius-pill: 999px;
  --shadow-card: 0 1px 3px rgba(0,0,0,.08);
  --font-heading: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-body: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --step-0: clamp(1rem, .95rem + .25vw, 1.0625rem);
  --step-1: clamp(1.25rem, 1.15rem + .5vw, 1.5rem);
  --step-2: clamp(1.5rem, 1.3rem + 1vw, 2rem);
  --step-3: clamp(1.875rem, 1.5rem + 1.5vw, 2.5rem);
  --space-xs: .5rem;
  --space-s: .75rem;
  --space-m: 1.25rem;
  --space-l: 2rem;
  --space-xl: clamp(2.5rem, 2rem + 2vw, 4rem);
  --container: 72rem;
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; }
body { font-family: var(--font-body); font-size: var(--step-0); line-height: 1.6; color: var(--colour-text); background: var(--colour-bg); }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3 { font-family: var(--font-heading); line-height: 1.15; color: var(--colour-text); }
h1 { font-size: var(--step-3); }
h2 { font-size: var(--step-2); }
h3 { font-size: var(--step-1); }
a { color: var(--colour-primary); text-underline-offset: 2px; }
a:hover { color: var(--colour-primary-dark); }
:focus-visible { outline: 3px solid var(--colour-accent); outline-offset: 2px; border-radius: 4px; }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--space-m); }
.stack > * + * { margin-block-start: var(--space-m); }
.stack-l > * + * { margin-block-start: var(--space-l); }
.section { padding-block: var(--space-xl); }
.section--surface { background: var(--colour-surface); }

/* SLIM HEADER */
.site-header { background: var(--colour-surface); border-bottom: 1px solid var(--colour-border); padding-block: var(--space-s); }
.header-inner { display: flex; flex-direction: column; align-items: center; gap: var(--space-s); text-align: center; }
@media (min-width: 900px) {
  .header-inner { flex-direction: row; justify-content: space-between; text-align: left; }
}
.brand-link { font-weight: 800; font-size: 1.125rem; color: var(--colour-primary); text-decoration: none; white-space: nowrap; }
.header-nav ul { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-s) var(--space-m); list-style: none; padding: 0; margin: 0; }
.header-nav a { font-size: 0.9375rem; font-weight: 500; text-decoration: none; color: var(--colour-text); }
.header-nav a:hover { color: var(--colour-primary); }
.btn--header { min-height: 36px; padding: .4rem 1rem; font-size: .875rem; }

/* BUTTONS */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-xs); min-height: 44px; padding: .75rem 1.5rem; border: 0; border-radius: var(--radius-pill); font-family: var(--font-heading); font-weight: 700; font-size: .9375rem; text-decoration: none; cursor: pointer; transition: background .15s ease; }
.btn--primary { background: var(--colour-primary); color: #fff; }
.btn--primary:hover { background: var(--colour-primary-dark); color: #fff; }
.btn--accent { background: var(--colour-accent); color: #fff; }
.btn--ghost { background: transparent; color: var(--colour-primary); box-shadow: inset 0 0 0 2px var(--colour-primary); }

/* CARDS & GRID */
.card { background: var(--colour-surface); border-radius: var(--radius-card); box-shadow: var(--shadow-card); padding: var(--space-m); }
.grid { display: grid; gap: var(--space-m); grid-template-columns: 1fr; }
@media (min-width: 640px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
}

/* HERO IMAGE ONLY - no cropping, full width, natural height */
.hero { position: relative; padding: 0; margin: 0; line-height: 0; background: #000; }
.hero img { width: 100%; height: auto; max-height: none; object-fit: contain; display: block; }

/* GALLERY */
.gallery { display: grid; gap: var(--space-m); grid-template-columns: 1fr 1fr; }
.gallery figure { margin: 0; }
.gallery img { border-radius: var(--radius-card); box-shadow: var(--shadow-card); }
.gallery figcaption { margin-block-start: var(--space-xs); font-size: .875rem; color: var(--colour-muted); }

/* FORMS */
.form { display: grid; gap: var(--space-m); max-width: 32rem; }
.field { display: grid; gap: var(--space-xs); }
.field label { font-weight: 600; font-size: .9375rem; }
.field input, .field textarea, .field select { font: inherit; min-height: 44px; padding: .625rem .75rem; border: 1px solid var(--colour-border); border-radius: 10px; background: var(--colour-surface); color: var(--colour-text); }
.field textarea { min-height: 8rem; resize: vertical; }

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; } }

/* SPLIT LAYOUT FOR INTRO + GALLERY */
.split-layout {
  display: flex;
  flex-direction: column;
  gap: var(--space-l);
  margin-block: var(--space-l);
}
@media (min-width: 900px) {
  .split-layout {
    flex-direction: row;
    align-items: center;
  }
  .split-text {
    flex: 1;
  }
  .split-gallery {
    flex: 1;
    grid-template-columns: 1fr; /* Stack vertically on the right */
    gap: var(--space-m);
  }
}
.split-gallery {
  display: grid;
  gap: var(--space-m);
}
.split-gallery figure {
  margin: 0;
}
.split-gallery img {
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  width: 100%;
  object-fit: cover;
}

/* GALLERY OVERRIDES */
.gallery {
  display: grid;
  gap: var(--space-m);
}
.gallery figure {
  margin: 0;
}
.gallery img {
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  width: 100%;
  object-fit: cover;
  aspect-ratio: 16/9;
}

/* STICKY HEADER */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--colour-surface);
  box-shadow: 0 2px 4px rgba(0,0,0,0.05); /* Slight shadow to separate from content when scrolling */
}