/* ============================================================
   Francisco José Mañas Álvarez — web personal
   Hoja de estilos compartida por todas las páginas del sitio.
   ============================================================ */

:root {
  --color-bg: #f7f8fa;
  --color-surface: #ffffff;
  --color-text: #1c2530;
  --color-text-muted: #4d5866;
  --color-border: #e2e6eb;

  --color-primary: #003d79;      /* unedblue, tomado del material de los cursos */
  --color-primary-dark: #002850;
  --color-accent: #03473a;       /* unedgreen */
  --color-accent-light: #e7f0ee;

  --color-link: var(--color-primary);
  --color-link-hover: var(--color-primary-dark);

  --shadow-soft: 0 1px 3px rgba(20, 30, 45, 0.08), 0 8px 24px rgba(20, 30, 45, 0.06);
  --radius: 14px;
  --max-width: 980px;

  --font-body: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-heading: "Georgia", "Times New Roman", serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #10151c;
    --color-surface: #171f29;
    --color-text: #e7ebf0;
    --color-text-muted: #a7b1bd;
    --color-border: #2a3543;

    --color-primary: #5ba0e0;
    --color-primary-dark: #8ec1ee;
    --color-accent: #4fb3a0;
    --color-accent-light: #16241f;

    --color-link: var(--color-primary);
    --color-link-hover: var(--color-primary-dark);

    --shadow-soft: 0 1px 3px rgba(0, 0, 0, 0.35), 0 8px 24px rgba(0, 0, 0, 0.3);
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

h1, h2, h3 {
  font-family: var(--font-heading);
  line-height: 1.25;
  color: var(--color-text);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---------- Cabecera / navegación ---------- */

.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.9rem;
  padding-bottom: 0.9rem;
  flex-wrap: wrap;
}

.site-brand {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text);
}
.site-brand:hover { text-decoration: none; color: var(--color-primary); }

.nav-wrap {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.site-nav {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.3rem 0;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom-color: var(--color-primary);
}

/* ---------- Selector de idioma ---------- */

.lang-switch {
  display: flex;
  align-items: center;
  padding-left: 1.15rem;
  border-left: 1px solid var(--color-border);
}

.lang-switch a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--color-text-muted);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
}

.lang-switch a:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-accent-light);
  text-decoration: none;
}

/* ---------- Secciones genéricas ---------- */

main { padding: 3rem 0 4rem; }

.section {
  margin-bottom: 3.5rem;
}

.section-title {
  font-size: 1.6rem;
  margin-bottom: 1.25rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 1.75rem;
}

.card + .card { margin-top: 1.25rem; }

/* ---------- Hero (portada) ---------- */

.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2.5rem;
  align-items: center;
  padding: 2rem 0 1rem;
}

.hero h1 {
  font-size: 2.2rem;
  margin: 0 0 0.5rem;
}

.hero .role {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  margin: 0 0 1.25rem;
}

.hero .tagline {
  font-size: 1.05rem;
  color: var(--color-text);
  max-width: 50ch;
  text-align: justify;
  text-justify: inter-word;
}

.hero-photo {
  width: 100%;
  aspect-ratio: 4 / 3.4;
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--color-border);
}

.hero-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 42% 22%;
}

@media (max-width: 720px) {
  .hero {
    grid-template-columns: 1fr;
  }
  .hero-photo { max-width: 320px; margin: 0 auto; }
}

/* ---------- Botones / enlaces destacados ---------- */

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.92rem;
  border: 1px solid var(--color-primary);
}

.btn:hover { text-decoration: none; }

.btn-primary {
  background: var(--color-primary);
  color: #ffffff;
}
.btn-primary:hover { background: var(--color-primary-dark); color: #fff; }

.btn-ghost {
  background: transparent;
  color: var(--color-primary);
}
.btn-ghost:hover { background: var(--color-accent-light); }

/* ---------- Listas de líneas de trabajo / enlaces ---------- */

.tag-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.tag-list li {
  background: var(--color-accent-light);
  color: var(--color-accent);
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  font-size: 0.88rem;
  font-weight: 600;
}

.link-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.link-list a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
}

/* ---------- Tarjetas de curso ---------- */

.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.course-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.course-card h3 { margin: 0; font-size: 1.15rem; }

.status-badge {
  display: inline-block;
  width: fit-content;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
}

.status-disponible {
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.status-proximamente {
  background: var(--color-border);
  color: var(--color-text-muted);
}

.course-card p { margin: 0; color: var(--color-text-muted); font-size: 0.95rem; }

/* ---------- Tabla de temario ---------- */

.temario {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  font-size: 0.95rem;
}

.temario th, .temario td {
  text-align: left;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
}

.temario th {
  color: var(--color-text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ---------- Pie de página ---------- */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 1.75rem 0;
  color: var(--color-text-muted);
  font-size: 0.88rem;
}

.site-footer .container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.breadcrumb {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-primary); }

.note {
  border-left: 3px solid var(--color-accent);
  background: var(--color-accent-light);
  padding: 0.9rem 1.1rem;
  border-radius: 0 8px 8px 0;
  font-size: 0.92rem;
  color: var(--color-text);
}

/* ---------- Tabla de contenidos de página (Investigación, Docencia…) ---------- */

.toc {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.25rem 0 2.5rem;
}

.toc a {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-accent-light);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
}

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

/* ---------- Entradas tipo CV (formación, experiencia, proyectos…) ---------- */

.entry { margin-bottom: 1.1rem; }
.entry:last-child { margin-bottom: 0; }
.entry-title { font-weight: 700; }
.entry-meta { color: var(--color-text-muted); font-size: 0.92rem; }

.pub-group { margin-top: 1.25rem; }
.pub-group h3 { font-size: 1.05rem; margin-bottom: 0.5rem; }

/* ---------- Publicaciones con imagen (portada / graphical abstract) ---------- */

.pub-card {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1.25rem;
  align-items: start;
}

.pub-card .pub-thumb {
  width: 140px;
  max-width: 140px;
  height: auto;
  border-radius: 10px;
  border: 1px dashed var(--color-border);
  background: var(--color-accent-light);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.72rem;
  text-align: center;
  padding: 0.5rem;
}

.pub-card .pub-thumb img { display: block; width: 100%; height: auto; }

.pub-card .pub-title { font-weight: 700; margin-bottom: 0.2rem; }
.pub-card .pub-meta { color: var(--color-text-muted); font-size: 0.9rem; margin-bottom: 0.3rem; }

@media (max-width: 560px) {
  .pub-card { grid-template-columns: 1fr; }
  .pub-card .pub-thumb { width: 100%; height: 160px; }
}

/* ---------- Tarjetas genéricas en cuadrícula (Docencia, PFG/TFM…) ---------- */

.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.item-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.item-card h3 { margin: 0; font-size: 1.05rem; }
.item-card p { margin: 0; color: var(--color-text-muted); font-size: 0.92rem; }