/* Datacost Blog — hoja de estilos */
:root {
  --brand: #0d9488;
  --brand-dark: #0f766e;
  --brand-soft: #ccfbf1;
  --ink: #0f172a;
  --ink-soft: #475569;
  --ink-faint: #94a3b8;
  --bg: #ffffff;
  --bg-soft: #f8fafc;
  --border: #e2e8f0;
  --danger: #dc2626;
  --radius: 10px;
  --max-width: 1040px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ── Cabecera ─────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 60px;
}

.brand {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.brand:hover { text-decoration: none; }
.brand-dot { color: var(--brand); margin: 0 0.1em; }
.brand-sub { color: var(--brand-dark); font-weight: 600; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-weight: 500;
}
.site-nav a { color: var(--ink-soft); }
.site-nav a:hover { color: var(--ink); text-decoration: none; }

/* ── Botones ──────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--ink);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.btn:hover { background: var(--bg-soft); text-decoration: none; }

.btn-primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff !important;
}
.btn-primary:hover { background: var(--brand-dark); border-color: var(--brand-dark); }

.btn-danger {
  color: var(--danger);
  border-color: #fecaca;
}
.btn-danger:hover { background: #fef2f2; }

/* ── Hero ─────────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, #f0fdfa 0%, #ecfdf5 55%, #f8fafc 100%);
  border-bottom: 1px solid var(--border);
  padding: 3.5rem 0 3rem;
  margin-bottom: 2.5rem;
}
.hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(2rem, 5vw, 2.9rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
}
.hero-tagline {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 44rem;
}
.hero-sub { margin: 0; color: var(--ink-faint); }

/* ── Listado de artículos ─────────────────────────── */
.filter-notice {
  background: var(--brand-soft);
  border-radius: var(--radius);
  padding: 0.6rem 1rem;
  margin-bottom: 1.5rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 1.25rem;
  padding-bottom: 3rem;
}

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: box-shadow 0.15s, transform 0.15s;
}
.card:hover {
  box-shadow: 0 6px 24px rgba(15, 23, 42, 0.08);
  transform: translateY(-2px);
}

.card-meta { margin: 0; font-size: 0.85rem; color: var(--ink-faint); }
.card-title { margin: 0; font-size: 1.2rem; line-height: 1.35; letter-spacing: -0.01em; }
.card-title a { color: var(--ink); }
.card-title a:hover { color: var(--brand-dark); text-decoration: none; }
.card-desc { margin: 0; color: var(--ink-soft); font-size: 0.95rem; flex-grow: 1; }

.tags { margin: 0.25rem 0 0; display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tag {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand-dark);
}
.tag:hover { text-decoration: none; background: #99f6e4; }

.empty { text-align: center; color: var(--ink-faint); padding: 4rem 0; }

/* ── Artículo ─────────────────────────────────────── */
.post { max-width: 46rem; padding-top: 2.5rem; padding-bottom: 3rem; }

.breadcrumb { margin: 0 0 1.5rem; font-size: 0.9rem; }

.post-header h1 {
  margin: 0 0 0.6rem;
  font-size: clamp(1.7rem, 4.5vw, 2.4rem);
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.post-meta { margin: 0 0 0.6rem; color: var(--ink-faint); font-size: 0.92rem; }
.badge-draft {
  background: #fef3c7;
  color: #92400e;
  font-weight: 600;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  font-size: 0.8rem;
}

.prose { margin-top: 2rem; font-size: 1.05rem; }
.prose h2 { margin: 2.2rem 0 0.8rem; font-size: 1.45rem; letter-spacing: -0.01em; }
.prose h3 { margin: 1.8rem 0 0.6rem; font-size: 1.2rem; }
.prose p { margin: 0 0 1.1rem; }
.prose img { max-width: 100%; border-radius: var(--radius); }
.prose ul, .prose ol { padding-left: 1.4rem; margin: 0 0 1.1rem; }
.prose li { margin-bottom: 0.35rem; }
.prose blockquote {
  margin: 1.5rem 0;
  padding: 0.2rem 1.2rem;
  border-left: 4px solid var(--brand);
  background: var(--bg-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--ink-soft);
}
.prose code {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 0.1rem 0.35rem;
  font-size: 0.9em;
}
.prose pre {
  background: #0f172a;
  color: #e2e8f0;
  padding: 1rem 1.2rem;
  border-radius: var(--radius);
  overflow-x: auto;
}
.prose pre code { background: none; border: none; padding: 0; color: inherit; }
.prose table { border-collapse: collapse; width: 100%; margin: 1.5rem 0; display: block; overflow-x: auto; }
.prose th, .prose td { border: 1px solid var(--border); padding: 0.5rem 0.8rem; text-align: left; }
.prose th { background: var(--bg-soft); }
.prose hr { border: none; border-top: 1px solid var(--border); margin: 2.5rem 0; }

.cta-box {
  margin-top: 3rem;
  padding: 1.8rem;
  border-radius: var(--radius);
  background: linear-gradient(135deg, #f0fdfa, #ecfdf5);
  border: 1px solid #99f6e4;
}
.cta-box h2 { margin: 0 0 0.5rem; font-size: 1.3rem; }
.cta-box p { margin: 0 0 1.2rem; color: var(--ink-soft); }

/* ── Panel de administración ──────────────────────── */
.admin { max-width: 46rem; padding-top: 2.5rem; padding-bottom: 3rem; }
.admin h1 { margin: 0 0 0.4rem; letter-spacing: -0.02em; }
.admin-intro { color: var(--ink-soft); margin: 0 0 2rem; }

.admin-block {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
  margin-bottom: 1.5rem;
  background: var(--bg);
}
.admin-block h2 { margin: 0 0 1rem; font-size: 1.15rem; }

.field-row { display: flex; gap: 0.6rem; margin-bottom: 0.6rem; }
.field-row input {
  flex: 1;
  padding: 0.5rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.95rem;
}

textarea {
  width: 100%;
  padding: 0.8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9rem;
  margin-bottom: 0.8rem;
  resize: vertical;
}

input:focus, textarea:focus { outline: 2px solid var(--brand-soft); border-color: var(--brand); }

.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  color: var(--ink-soft);
  margin-bottom: 0.8rem;
  transition: border-color 0.15s, background 0.15s;
}
.dropzone.dragging { border-color: var(--brand); background: var(--brand-soft); }
.dropzone p { margin: 0 0 0.8rem; }

.check { display: block; font-size: 0.9rem; color: var(--ink-soft); margin-bottom: 0.8rem; }

.hint { color: var(--ink-faint); font-size: 0.9rem; margin: 0.4rem 0 0; }

.log { max-height: 180px; overflow-y: auto; }
.log p { margin: 0.3rem 0; font-size: 0.9rem; }
.log-ok { color: #047857; }
.log-error { color: var(--danger); }

.post-list { display: flex; flex-direction: column; gap: 0.6rem; }
.post-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.7rem 1rem;
}
.post-row-info a { font-weight: 600; color: var(--ink); }
.post-row-info a:hover { color: var(--brand-dark); }
.post-row-info p { margin: 0.1rem 0 0; font-size: 0.85rem; color: var(--ink-faint); }

/* ── Pie ──────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
  padding: 2rem 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
}
.footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem; }
.footer-inner p { margin: 0; }

@media (max-width: 640px) {
  .site-nav { gap: 0.8rem; font-size: 0.9rem; }
  .hero { padding: 2.5rem 0 2rem; }
  .footer-inner { flex-direction: column; }
  .post-row { flex-direction: column; align-items: flex-start; }
}