/* ==========================================================
   The Dendra Project — base layout
   Structural CSS only. Colors/fonts come from themes.css via
   custom properties, so this file should not need to change
   when a new theme is added.
   ========================================================== */

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background 0.2s ease, color 0.2s ease;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

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

.site-header {
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1.25rem 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
}
.brand:hover { text-decoration: none; }

.brand__mark {
  font-size: 1.75rem;
  color: var(--accent);
}

.brand__text {
  display: flex;
  flex-direction: column;
}

.brand__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.02em;
}

.brand__tagline {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.theme-switcher {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.theme-switcher__label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.theme-switcher select {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.4rem 0.6rem;
  font-family: var(--font-body);
}

/* ---------- Hero ---------- */

.hero {
  padding: 3rem 1.5rem 2rem;
  text-align: center;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  margin-bottom: 0.75rem;
}

.hero__lede {
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto;
  font-size: 1.05rem;
}

/* ---------- Cards ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding: 1rem 1.5rem 4rem;
}

@media (max-width: 900px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .cards { grid-template-columns: 1fr; }
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.5rem;
  box-shadow: var(--card-shadow);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--card-shadow-hover);
}

.card__status {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.card__title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin: 0 0 0.6rem;
}

.card__summary {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin: 0 0 1.25rem;
}

.card__footer {
  margin-top: auto;
}

.card__link {
  font-weight: 600;
  color: var(--accent);
}

/* ---------- Project detail pages ---------- */

.project-detail {
  padding: 3rem 1.5rem 4rem;
}

.project-detail .wrap {
  max-width: 760px;
}

.project-detail h1 {
  font-family: var(--font-heading);
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.project-detail .kicker {
  color: var(--text-muted);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1.5rem;
  display: block;
}

.project-detail p {
  margin-bottom: 1.1rem;
}

.project-detail .back-link {
  display: inline-block;
  margin-top: 2rem;
  font-weight: 600;
}

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

.site-footer {
  margin-top: auto;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.site-footer__inner {
  padding: 1.5rem;
  text-align: center;
}

.site-footer__fine-print {
  margin-top: 0.25rem;
  opacity: 0.7;
}