/* Theoria — mosaic studio site
   Palette: charcoal ground, limewash text, tessera red + brass accents */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700&family=Inter:wght@400;500;600&display=swap');

:root {
  --ground: #1c1b1a;
  --ground-raised: #242220;
  --limewash: #ede7da;
  --limewash-dim: #b9b2a3;
  --tessera-red: #a8352e;
  --brass: #b08d57;
  --line: #3a3733;
  --max: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ground);
  color: var(--limewash);
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .display {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--limewash);
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--brass);
  outline-offset: 3px;
}

img { max-width: 100%; display: block; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- Header / Nav ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(28, 27, 26, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
}

.wordmark {
  font-family: 'Fraunces', serif;
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.wordmark span { color: var(--tessera-red); }

.site-nav {
  display: flex;
  gap: 36px;
}

.site-nav a {
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--limewash-dim);
  padding-bottom: 4px;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--limewash);
  border-color: var(--tessera-red);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--limewash);
  font-size: 1.6rem;
  cursor: pointer;
}

/* ---------- Tessera divider (signature element) ---------- */

.tessera-divider {
  display: flex;
  justify-content: center;
  gap: 6px;
  padding: 56px 0;
}

.tessera-divider span {
  width: 9px;
  height: 9px;
  display: inline-block;
  transform: rotate(var(--r, 0deg));
}

.tessera-divider span:nth-child(1) { background: var(--tessera-red); --r: -6deg; }
.tessera-divider span:nth-child(2) { background: var(--brass); --r: 4deg; height: 12px; margin-top: -2px; }
.tessera-divider span:nth-child(3) { background: var(--limewash-dim); --r: -3deg; }
.tessera-divider span:nth-child(4) { background: var(--tessera-red); --r: 8deg; height: 7px; }
.tessera-divider span:nth-child(5) { background: var(--brass); --r: -5deg; }

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  padding: 40px 0 56px;
  margin-top: 80px;
}

.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.site-footer p {
  margin: 0;
  color: var(--limewash-dim);
  font-size: 0.85rem;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--limewash-dim);
  transition: color 0.2s;
}

.footer-links a:hover { color: var(--brass); }

/* ---------- Buttons ---------- */

.btn {
  display: inline-block;
  padding: 14px 30px;
  border: 1px solid var(--brass);
  color: var(--limewash);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: background 0.2s, color 0.2s;
}

.btn:hover {
  background: var(--brass);
  color: var(--ground);
}

.btn-solid {
  background: var(--tessera-red);
  border-color: var(--tessera-red);
}

.btn-solid:hover {
  background: var(--limewash);
  border-color: var(--limewash);
  color: var(--ground);
}

/* ---------- Utility ---------- */

.eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brass);
  margin-bottom: 14px;
  display: block;
}

.lede {
  color: var(--limewash-dim);
  font-size: 1.1rem;
  max-width: 560px;
}

@media (max-width: 760px) {
  .site-nav { display: none; }
  .nav-toggle { display: block; }
  .site-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 78px;
    left: 0;
    right: 0;
    background: var(--ground-raised);
    padding: 24px 32px;
    gap: 20px;
    border-bottom: 1px solid var(--line);
  }
  .wrap { padding: 0 20px; }
  .site-footer .wrap { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}