/* ============================================================
   Estética «GitHub» (sistema de diseño Primer): plana, neutra,
   tipografías de sistema, acentos azul y verde. Sin assets externos.
   ============================================================ */
:root {
  color-scheme: dark;
  --radius: 6px;
  --font-display: system-ui, -apple-system, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif;
  --font-sans: system-ui, -apple-system, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --space: 2.5rem;

  /* Paleta OSCURA (GitHub dark: #0d1117) */
  --bg: #0d1117;
  --surface: #161b22;
  --bar-bg: #161b22;
  --bar-fg: #f0f6fc;
  --bar-accent: #58a6ff;
  --surface-soft: rgba(13, 17, 23, 0.85);
  --text: #f0f6fc;
  --text-muted: #9198a1;
  --accent: #2f81f7;
  --accent-hover: #1f6feb;
  --accent-soft: rgba(56, 139, 253, 0.15);
  --accent-glow: transparent;
  --accent2: #3fb950;
  --accent2-soft: rgba(63, 185, 80, 0.15);
  --accent2-glow: transparent;
  --border: #30363d;
  --border-bar: #7c8094;
  --shadow: none;
  --text-glow: none;
  --btn-bg: #21262d;
  --btn-bg-hover: #30363d;
  --btn-text: #ffffff;
}

/* Modo claro (GitHub light), solo con el conmutador manual */
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #ffffff;
  --surface: #ffffff;
  --bar-bg: #161b22;
  --bar-fg: #f0f6fc;
  --bar-accent: #58a6ff;
  --surface-soft: rgba(255, 255, 255, 0.85);
  --text: #1f2328;
  --text-muted: #59636e;
  --accent: #0969da;
  --accent-hover: #0860ca;
  --accent-soft: #ddf4ff;
  --accent-glow: transparent;
  --accent2: #1a7f37;
  --accent2-soft: rgba(26, 127, 55, 0.12);
  --accent2-glow: transparent;
  --border: #d0d7de;
  --border-bar: #7c8094;
  --shadow: none;
  --text-glow: none;
  --btn-bg: #f6f8fa;
  --btn-bg-hover: #eef1f4;
  --btn-text: #ffffff;
}

/* Sin JS: seguir al sistema (misma paleta clara) */
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    color-scheme: light;
    --bg: #ffffff;
    --surface: #ffffff;
    --surface-soft: rgba(255, 255, 255, 0.85);
    --text: #1f2328;
    --text-muted: #59636e;
    --accent: #0969da;
    --accent-hover: #0860ca;
    --accent-soft: #ddf4ff;
    --accent-glow: transparent;
    --accent2: #1a7f37;
    --accent2-soft: rgba(26, 127, 55, 0.12);
    --accent2-glow: transparent;
    --border: #d0d7de;
  --border-bar: #7c8094;
    --shadow: none;
    --text-glow: none;
    --btn-bg: #f6f8fa;
    --btn-bg-hover: #eef1f4;
    --btn-text: #ffffff;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--accent);
  color: #ffffff;
}

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

a:hover {
  text-decoration: underline;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #ffffff;
  padding: 0.6rem 1rem;
  border-radius: 0 0 6px 0;
  z-index: 10;
}

.skip-link:focus {
  left: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  background: var(--bar-bg);
  color: var(--bar-fg);
  border-bottom: 1px solid var(--border-bar);
}

.nav {
  max-width: 960px;
  margin: 0 auto;
  padding: 0.75rem var(--space);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--bar-fg);
  font-weight: 600;
  font-size: 1rem;
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  /* El SVG usa stroke currentColor, que en un <img> resuelve a negro; la
     barra superior es siempre oscura (ambos temas), así que lo invertimos. */
  filter: invert(1);
}

.nav-links {
  display: flex;
  gap: 1.4rem;
  list-style: none;
  margin: 0 0 0 auto;
  padding: 0;
}

.nav-links a {
  color: var(--bar-fg);
  font-weight: 400;
  font-size: 0.9rem;
}

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

/* Conmutador manual de tema (comportamiento sin cambios) */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 1px solid var(--border-bar);
  border-radius: 6px;
  background: transparent;
  color: var(--bar-fg);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--bar-accent);
  border-color: var(--bar-fg);
}

.theme-toggle svg {
  width: 16px;
  height: 16px;
}

.theme-toggle .icon-moon {
  display: none;
}

.theme-toggle[aria-pressed="true"] .icon-moon {
  display: block;
}

.theme-toggle[aria-pressed="true"] .icon-sun {
  display: none;
}

main {
  flex: 1;
}

.hero {
  max-width: 960px;
  margin: 0 auto;
  padding: clamp(3rem, 10vw, 6rem) var(--space) 2.5rem;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}

.hero-copy {
  text-align: left;
}

.hero-figure {
  margin: 0;
}

.hero-photo {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
  border: 1px solid var(--border);
}

/* Título a ancho completo sobre la columna doble (evita el salto de línea) */
.hero h1 {
  margin: 0 0 1.4rem;
}

h1 {
  margin: 1.4rem 0 0.4rem;
  font-weight: 600;
  font-size: clamp(2rem, 6vw, 2.8rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.nick {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0 0 0.6rem;
}

.nick a {
  color: var(--text-muted);
}

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

.tagline {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  letter-spacing: 0.02em;
  margin: 0 0 1.2rem;
}

.bio {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 56ch;
  margin: 0 0 1.8rem;
}

#dlab .bio,
#acerca-de-mi .bio,
#monitorizacion .bio,
#acerca-de-ti-lead {
  max-width: none;
}

.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: flex-start;
}

.btn {
  display: inline-block;
  padding: 0.55rem 1.2rem;
  border-radius: 6px;
  font-weight: 500;
  font-size: 0.95rem;
  line-height: 1.5;
  border: 1px solid var(--border);
  background: var(--btn-bg);
  color: var(--text);
  transition: background 0.15s ease, border-color 0.15s ease;
}

button.btn {
  line-height: 1.5;
  cursor: pointer;
}

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

.btn-secondary:hover {
  background: var(--btn-bg-hover);
  border-color: var(--text-muted);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.section {
  max-width: 960px;
  margin: 0 auto;
  padding: 2.5rem var(--space);
}

.section h2 {
  font-weight: 600;
  font-size: clamp(1.25rem, 3.5vw, 1.5rem);
  margin: 0 0 1.4rem;
  letter-spacing: 0.01em;
}

/* Bloques hermanos dentro de una sección: mismo ritmo vertical que la cabecera de sección */
.section > div + div {
  margin-top: 2.5rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.4rem;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.card-icon {
  width: 32px;
  height: 32px;
  color: var(--accent);
  margin-bottom: 0.9rem;
}

.card h3 {
  font-weight: 600;
  font-size: 1.05rem;
  margin: 0 0 0.9rem;
}

.card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin: 0 0 1rem;
}

.card .card-config-title {
  margin: 0 0 0.3rem;
}

.card .card-config {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.card .card-config li {
  padding: 0.12rem 0;
}

.card .card-config strong {
  color: var(--text);
  font-weight: 600;
  margin-right: 0.35rem;
}

.card a {
  color: var(--accent);
  font-weight: 500;
  font-size: 0.92rem;
  word-break: break-word;
}

.card a:hover {
  text-decoration: underline;
}

.card details {
  border-top: 1px solid var(--border);
  margin-top: 0.4rem;
  padding-top: 0.7rem;
}

.card details summary {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  padding: 0.3rem 0;
  border-radius: 6px;
}

.card details summary:hover {
  color: var(--accent);
  text-decoration: underline;
}

.card details[open] summary {
  color: var(--accent);
}

/* Gráficas embebidas de Grafana (public dashboard del cluster) */
.grafana-embed {
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.grafana-embed iframe {
  display: block;
  width: 100%;
  height: 1050px;
  aspect-ratio: 24 / 14;
  border: 0;
}

.pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.pills li {
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--border);
}

.contact {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.contact a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text);
  font-weight: 500;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.55rem 1.1rem;
  transition: transform 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.contact a:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

.site-footer {
  text-align: center;
  color: var(--bar-fg);
  border-top: 1px solid var(--border-bar);
  background: var(--bar-bg);
  padding: 1.6rem var(--space) 1.4rem;
  font-size: 0.9rem;
}

.site-footer p a {
  color: var(--bar-accent);
}

.site-footer .contact {
  justify-content: center;
  margin: 0 0 1.2rem;
}

.site-footer .muted {
  margin: 0.35rem 0 0;
  font-size: 0.82rem;
  opacity: 0.75;
}

@media (max-width: 760px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    text-align: center;
  }

  .hero-copy .cta {
    justify-content: center;
  }

  .hero-copy .bio {
    margin-left: auto;
    margin-right: auto;
  }
}

@media (max-width: 560px) {
  :root {
    --space: 1.25rem;
  }

  .nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
  }

  .nav-links {
    gap: 1rem;
  }

  .contact {
    flex-direction: column;
    align-items: stretch;
  }

  .contact a {
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}