/* Fraguío — sitio estático. Estética mínima, de papel cálido. */

@font-face {
  font-family: 'iA Writer Quattro';
  src: url('fonts/iAWriterQuattroS-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #f5f4f0;
  --fg: #2a2a2a;
  --fg-dim: #8f8d87;
  --fg-faint: #c9c7c1;
  --rule: #e3e1db;
  --accent: #a8534e;
  --err: #c97a7a;
  --sel: rgba(42, 42, 42, 0.1);

  --font: 'iA Writer Quattro', 'IBM Plex Sans', system-ui, sans-serif;
  --size: clamp(16px, 2.4vw, 17px);
  --line-height: 1.7;
  --measure: 46rem;
  --ease: 140ms ease;
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --ease: 0s;
  }
}

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

::selection {
  background: var(--sel);
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-size: var(--size);
  line-height: var(--line-height);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition:
    background-color var(--ease),
    color var(--ease);
}

/* Contenedor principal */
.container {
  max-width: var(--measure);
  margin: 0 auto;
  padding-inline: clamp(20px, 5vw, 48px);
  padding-block: clamp(3rem, 8vw, 5.5rem);
}

/* Cabecera */
.header {
  text-align: center;
  margin-bottom: clamp(2.5rem, 6vw, 4rem);
}

.site-subtitle {
  font-size: 0.7rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--fg-dim);
  margin-bottom: 0.9rem;
}

.site-title {
  font-size: clamp(1.7rem, 6vw, 2.3rem);
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 1.1;
  cursor: pointer;
  user-select: none;
  transition: opacity var(--ease);
}

@media (hover: hover) {
  .site-title:hover {
    opacity: 0.7;
  }
}

/* Filtro de autores */
.author-filter {
  margin-top: 1.3rem;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
}

.author-link {
  text-decoration: none;
  padding: 0 0.15rem;
  filter: grayscale(1);
  opacity: 0.4;
  transition:
    filter var(--ease),
    opacity var(--ease);
}

@media (hover: hover) {
  .author-link:hover {
    opacity: 0.75;
  }
}

.author-link.is-active,
.author-filter:not(:has(.is-active)) .author-link {
  filter: none;
  opacity: 1;
}

/* Entradas del feed */
.posts-feed {
  display: flex;
  flex-direction: column;
}

.post-item {
  padding-bottom: clamp(2rem, 5vw, 3rem);
  margin-bottom: clamp(2rem, 5vw, 3rem);
  border-bottom: 1px solid var(--rule);
}

.post-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.post-title {
  display: block;
  font-size: clamp(1.15rem, 3.6vw, 1.35rem);
  font-weight: 400;
  line-height: 1.3;
  color: var(--fg);
  text-decoration: none;
  letter-spacing: 0.005em;
  transition: color var(--ease);
}

@media (hover: hover) {
  .post-title:hover {
    color: var(--accent);
  }
}

/* Meta */
.post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin-top: 0.55rem;
  margin-bottom: 1.1rem;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-dim);
}

.post-author {
  letter-spacing: 0;
}

.post-stars {
  letter-spacing: 0.05em;
}

.stars-on {
  color: var(--accent);
}

.stars-off {
  color: var(--fg-faint);
}

/* Contenido */
.post-content {
  margin-top: 1.1rem;
}

.post-content p {
  margin: 0 0 1rem;
}

.post-content p:last-child {
  margin-bottom: 0;
}

.post-content ol,
.post-content ul {
  margin: 0 0 1rem 1.4em;
}

.post-content li {
  margin-bottom: 0.4rem;
}

.post-content a {
  color: var(--fg);
  text-decoration: underline;
  text-decoration-color: var(--fg-faint);
  text-underline-offset: 0.18em;
  transition: text-decoration-color var(--ease);
}

.post-content a:hover {
  text-decoration-color: var(--accent);
}

.more-link {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent) !important;
  text-decoration: none !important;
  white-space: nowrap;
}

.more-link:hover {
  text-decoration: underline !important;
}

/* Página individual de post */
.post-detail .post-title {
  font-size: clamp(1.4rem, 4.4vw, 1.8rem);
  cursor: default;
}

.post-detail .post-meta {
  margin-bottom: 2rem;
}

/* Loading */
.loading {
  text-align: center;
  padding: 2rem 0;
  color: var(--fg-dim);
  letter-spacing: 0.2em;
}

/* Navegación */
.nav-link {
  display: inline-block;
  margin-bottom: 2.5rem;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--fg-dim);
  transition: color var(--ease);
}

@media (hover: hover) {
  .nav-link:hover {
    color: var(--fg);
  }
}

/* Mensajes de error */
.error-message {
  padding: 1rem;
  border: 1px solid var(--rule);
  border-left: 2px solid var(--err);
  color: var(--err);
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 600px) {
  .post-meta {
    letter-spacing: 0.08em;
  }
}

/* Impresión */
@media print {
  .container {
    max-width: none;
    padding: 0;
  }

  .post-item {
    break-inside: avoid;
    margin-bottom: 2rem;
    border-bottom: 1px solid #ccc;
  }
}