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

/* ── Design tokens ── */
:root {
  --bg-cream:      #f9f7f2;
  --bg-dark:       #1b2d2e;
  --teal:          #00959c;
  --teal-dark:     #007a80;
  --gold:          #e6b222;
  --gold-dark:     #c99b1a;
  --text-dark:     #1b2d2e;
  --text-sub:      #5a7475;
  --text-light:    #ededf0;
  --text-light-sub:rgba(237,237,240,0.65);
  --border-light:  rgba(27,45,46,0.09);
  --border-dark:   rgba(255,255,255,0.09);
  --card-light:    #f0ece0;
  --card-dark:     rgba(255,255,255,0.06);

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

  --r-pill:  32px;
  --r-card:  12px;
  --r-sm:     8px;

  --h-nav: 72px;
  --max-w: 1100px;
  --pad-x: 32px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  background-color: var(--bg-cream);
  color: var(--text-dark);
  transition: background-color 0.5s cubic-bezier(0,0,0.6,1), color 0.5s cubic-bezier(0,0,0.6,1);
}
body.dark {
  background-color: var(--bg-dark);
  color: var(--text-light);
}

/* ── Scroll reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.65s cubic-bezier(0,0,0.2,1), transform 0.65s cubic-bezier(0,0,0.2,1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.d1 { transition-delay: 0.08s; }
.d2 { transition-delay: 0.16s; }
.d3 { transition-delay: 0.24s; }
.d4 { transition-delay: 0.32s; }

/* ── Nav ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  height: var(--h-nav);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--pad-x);
  background: transparent;
  transition: background-color 0.5s cubic-bezier(0,0,0.6,1), border-color 0.5s cubic-bezier(0,0,0.6,1);
  border-bottom: 1px solid transparent;
}
nav.scrolled {
  background: var(--bg-cream);
  border-color: var(--border-light);
}
body.dark nav.scrolled {
  background: var(--bg-dark);
  border-color: rgba(255,255,255,0.08);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
.nav-logo-mark { height: 36px; width: auto; }

.nav-logo-wordmark {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 1.2rem;
  letter-spacing: 0.06em;
  text-transform: lowercase;
  line-height: 1;
  color: #000;
  transition: color 0.5s cubic-bezier(0,0,0.6,1);
}
.nav-logo-wordmark span { color: #000; transition: color 0.5s cubic-bezier(0,0,0.6,1); }
body.dark .nav-logo-wordmark { color: var(--text-light); }
body.dark .nav-logo-wordmark span { color: var(--text-light); }

/* ── Buttons ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--teal);
  color: #fff;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 15px;
  line-height: 1;
  padding: 0 22px;
  height: 40px;
  border-radius: var(--r-pill);
  text-decoration: none;
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.3s cubic-bezier(0,0,0.2,1);
}
.btn-primary:hover { background: var(--teal-dark); }
.btn-primary:focus-visible { outline: 2px solid var(--teal); outline-offset: 4px; }
.btn-primary:disabled { opacity: 0.55; cursor: not-allowed; }

.btn-hero { height: 52px; padding: 0 30px; font-size: 17px; }

/* ── Layout ── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

section { position: relative; padding: 80px 0; }
section + section { border-top: none; }

/* ── Section typography ── */
.section-label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 16px;
  color: var(--teal);
}
body.dark .section-label { color: var(--gold); }

.section-headline {
  font-family: var(--font-display);
  font-size: clamp(30px, 3.5vw, 42px);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: 0.01em;
  margin-bottom: 16px;
}

.section-sub {
  font-size: 18px;
  font-weight: 300;
  line-height: 1.65;
  max-width: 560px;
  color: var(--text-sub);
}
body.dark .section-sub { color: var(--text-light-sub); }
.section-sub--wide { max-width: none; }

/* ── Footer ── */
footer {
  background: var(--bg-dark);
  border-top: 1px solid rgba(255,255,255,0.07);
  padding: 40px 32px;
  text-align: center;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-decoration: none;
  margin-bottom: 16px;
}
.footer-logo-mark { height: 28px; width: auto; opacity: 0.7; }
.footer-logo-wordmark {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 1.1rem;
  letter-spacing: 0.06em;
  text-transform: lowercase;
  color: rgba(255,255,255,0.85);
}
.footer-logo-wordmark span { color: rgba(255,255,255,0.85); }

.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.footer-links a {
  font-size: 12px;
  color: rgba(255,255,255,0.38);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-links a:hover { color: rgba(255,255,255,0.7); }

.footer-copy {
  font-size: 11px;
  color: rgba(255,255,255,0.22);
  line-height: 1.7;
}

/* ── Base responsive ── */
@media (max-width: 720px) {
  :root { --pad-x: 20px; }
  section { padding: 60px 0; }
}