/* ==========================================================================
   site.css — root picker, language portals, institutional pages, and the
   shared .site-header/.breadcrumbs used by all of them. Reuses the same
   color/spacing language as proyecto-a/proyecto-b (bone background, warm
   accent) so the whole domain feels like one product family.
   ========================================================================== */

:root,
:root[data-theme="light"] {
  --bg-base: #faf9f6;
  --bg-gradient: linear-gradient(160deg, #faf9f6 0%, #f3efe6 100%);
  --ink: #2a2620;
  --ink-soft: #6b6357;
  --accent: #a8763e;
  --accent-ink: #ffffff;
  --card-bg: #ffffff;
  --card-shadow: 0 20px 60px -20px rgba(42, 38, 32, 0.2);
  --border: #e4e0d6;
  --hover-tint: #fbf3e9;
}

:root[data-theme="dark"] {
  --bg-base: #121212;
  --bg-gradient: #121212;
  --ink: #e0e0e0;
  --ink-soft: #a3a3a3;
  --accent: #d9a15c;
  --accent-ink: #121212;
  --card-bg: #1a1a1a;
  --card-shadow: none;
  --border: #2b2b2b;
  --hover-tint: #241f1a;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg-base: #121212;
    --bg-gradient: #121212;
    --ink: #e0e0e0;
    --ink-soft: #a3a3a3;
    --accent: #d9a15c;
    --accent-ink: #121212;
    --card-bg: #1a1a1a;
    --card-shadow: none;
    --border: #2b2b2b;
    --hover-tint: #241f1a;
  }
}

:root {
  --radius: 18px;
  --font-serif: "Lora", Georgia, "Times New Roman", serif;
  --font-sans: "Inter", system-ui, -apple-system, Segoe UI, sans-serif;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--bg-gradient);
  color: var(--ink);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.icon {
  width: 1.05em;
  height: 1.05em;
  flex-shrink: 0;
}

/* ---------- Shared header (portal / institutional / archive-free pages) ---------- */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 760px;
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem 1.5rem 0;
}

.site-header__brand {
  font-weight: 700;
  font-size: 1rem;
  color: var(--ink);
  text-decoration: none;
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.site-header__lang {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px dashed var(--border);
  padding-bottom: 2px;
}

.site-header__lang:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.icon-btn {
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--ink);
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: background-color 0.2s ease, transform 0.15s ease, border-color 0.15s ease;
}

.icon-btn:hover {
  transform: scale(1.05);
  border-color: var(--accent);
  color: var(--accent);
}

.breadcrumbs {
  max-width: 760px;
  width: 100%;
  margin: 1.5rem auto -0.5rem;
  padding: 0 1.5rem;
  font-size: 0.75rem;
  color: var(--ink-soft);
  box-sizing: border-box;
}

.breadcrumbs a {
  color: var(--ink-soft);
  text-decoration: none;
}

.breadcrumbs a:hover {
  color: var(--accent);
}

.breadcrumbs__sep {
  margin: 0 0.4em;
  color: var(--border);
}

.footer {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  padding: 2rem 1.5rem;
}

.footer__donate {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink-soft);
  text-decoration: none;
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  transition: color 0.15s ease, border-color 0.15s ease, background-color 0.15s ease;
}

.footer__donate:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ---------- Root language picker ---------- */

.picker {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  padding: 1.5rem;
  text-align: center;
}

.picker__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 5vw, 2.2rem);
}

.picker__options {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.picker__option {
  padding: 0.9rem 2rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  transition: border-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.picker__option:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

/* ---------- Language portal ---------- */

.portal {
  flex: 1;
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 1.5rem;
  text-align: center;
}

.portal__title {
  margin: 0 0 0.5rem;
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 5vw, 2.4rem);
}

.portal__tagline {
  margin: 0 0 2.5rem;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

.portal-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin: 0 0 2.5rem;
  text-align: left;
}

.portal-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.75rem;
  border-radius: var(--radius);
  background: var(--card-bg);
  box-shadow: var(--card-shadow);
  color: var(--ink);
  text-decoration: none;
  transition: transform 0.15s ease;
}

:root[data-theme="dark"] .portal-card {
  border: 1px solid var(--border);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .portal-card {
    border: 1px solid var(--border);
  }
}

.portal-card:hover {
  transform: translateY(-2px);
}

.portal-card .icon {
  width: 1.6em;
  height: 1.6em;
  color: var(--accent);
}

.portal-card__title {
  margin: 0;
  font-size: 1.15rem;
}

.portal-card__description {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.5;
}

.portal-card__cta {
  margin-top: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
}

.portal__links {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  justify-content: center;
  margin: 0 0 2rem;
}

.portal__links a {
  color: var(--ink-soft);
  font-size: 0.85rem;
  text-decoration: none;
}

.portal__links a:hover {
  color: var(--accent);
}

/* ---------- Institutional pages ---------- */

.institutional {
  flex: 1;
  width: 100%;
  max-width: 680px;
  margin: 0 auto;
  padding: 1.5rem;
}

.institutional__title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 4vw, 2rem);
  margin: 0.5rem 0 1.5rem;
}

.institutional__content {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--ink);
}

.institutional__content h2 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  margin: 2rem 0 0.75rem;
}

.institutional__content p {
  margin: 0 0 1rem;
}

.institutional__content ul {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
}

.institutional__content a {
  color: var(--accent);
}