/* ============================================================
   Design system white-label — monocromo (negro/blanco/grises).
   El acento (--accent) llega desde base.html vía settings de marca;
   por defecto es casi-negro. Sin JS externo ni frameworks.
   Clases del contrato (las páginas SOLO usan estas):
   .btn .btn-primary .btn-ghost .btn-danger .btn-sm · .card ·
   .table · .badge .badge-ok .badge-warn .badge-ko .badge-muted ·
   .form-grid .field-error · .hero · .steps · .qr-box ·
   .section .section-title · .grid-2 · .notice · .page-header · .muted ·
   .kpis .kpi .kpi-label .kpi-value .kpi-hint · .panel-nav
   ============================================================ */

:root {
  --accent: #111111;              /* fallback; base.html lo sobreescribe */
  --fondo: #fafafa;
  --superficie: #ffffff;
  --tinta: #0a0a0a;
  --tinta-2: #404040;
  --tinta-suave: #6f6f6f;
  --tinta-tenue: #8f8f8f;
  --borde: #e4e4e4;
  --borde-fuerte: #cfcfcf;
  --gris-hover: #f4f4f4;
  --radio: 10px;
  --sombra: 0 1px 2px rgb(0 0 0 / 0.04);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  background: var(--fondo);
  color: var(--tinta);
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { line-height: 1.2; letter-spacing: -0.015em; }
a {
  color: var(--tinta);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: var(--borde-fuerte);
}
a:hover { text-decoration-color: var(--tinta); }
img { max-width: 100%; height: auto; }
code {
  font-size: 0.85em;
  background: var(--gris-hover);
  border: 1px solid var(--borde);
  border-radius: 5px;
  padding: 0.05rem 0.35rem;
}

:focus-visible { outline: 2px solid var(--tinta); outline-offset: 2px; }

/* ── Layout ──────────────────────────────────────────────── */

.container {
  width: min(960px, 94%);
  margin: 2rem auto;
  flex: 1;
}
.container-wide { width: min(1120px, 96%); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.75rem 1.2rem;
  background: rgb(255 255 255 / 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--borde);
}
.site-header .wordmark {
  color: var(--tinta);
  text-decoration: none;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}
.site-nav { display: flex; gap: 0.4rem; }
.site-nav a {
  color: var(--tinta-2);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.88rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
}
.site-nav a:hover { background: var(--gris-hover); color: var(--tinta); }

.site-footer {
  text-align: center;
  padding: 1.4rem 1.2rem;
  border-top: 1px solid var(--borde);
  color: var(--tinta-suave);
  font-size: 0.83rem;
}
.site-footer a { color: var(--tinta-suave); }
.site-footer a:hover { color: var(--tinta); }

/* ── Botones ─────────────────────────────────────────────── */

.btn {
  display: inline-block;
  margin: 0.25rem 0.3rem 0.25rem 0;
  padding: 0.55rem 1.1rem;
  border-radius: 8px;
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 120ms ease, border-color 120ms ease, color 120ms ease;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #000; }
.btn-ghost {
  background: var(--superficie);
  color: var(--tinta);
  border-color: var(--borde-fuerte);
}
.btn-ghost:hover { background: var(--gris-hover); border-color: var(--tinta-tenue); }
/* Destructivo en monocromo: discreto en reposo, se “compromete” al pasar. */
.btn-danger {
  background: var(--superficie);
  color: var(--tinta-suave);
  border-color: var(--borde-fuerte);
}
.btn-danger:hover { background: var(--tinta); border-color: var(--tinta); color: #fff; }
.btn-sm { padding: 0.3rem 0.7rem; font-size: 0.82rem; }

/* ── Card ────────────────────────────────────────────────── */

.card {
  background: var(--superficie);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  padding: 1.4rem;
  margin-bottom: 1.3rem;
  box-shadow: var(--sombra);
}
.card h3 { font-size: 0.98rem; margin-bottom: 0.8rem; color: var(--tinta); }

/* ── KPIs (dashboard del panel) ──────────────────────────── */

.kpis {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.8rem;
  margin-bottom: 1.6rem;
}
.kpi {
  background: var(--superficie);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  padding: 0.85rem 1rem;
  box-shadow: var(--sombra);
}
.kpi-label {
  font-size: 0.66rem;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--tinta-suave);
}
.kpi-value {
  font-size: 1.55rem;
  font-weight: 750;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  margin-top: 0.1rem;
}
.kpi-hint { font-size: 0.74rem; color: var(--tinta-tenue); }

/* ── Sub-navegación del panel (tabs pegajosas) ───────────── */

.panel-nav {
  position: sticky;
  top: 3.4rem;
  z-index: 9;
  display: flex;
  gap: 0.2rem;
  width: max-content;
  max-width: 100%;
  overflow-x: auto;
  background: var(--superficie);
  border: 1px solid var(--borde);
  border-radius: 999px;
  padding: 0.28rem;
  margin-bottom: 1.6rem;
  box-shadow: var(--sombra);
}
.panel-nav a {
  padding: 0.32rem 0.85rem;
  border-radius: 999px;
  text-decoration: none;
  color: var(--tinta-2);
  font-weight: 600;
  font-size: 0.84rem;
  white-space: nowrap;
}
.panel-nav a:hover { background: var(--tinta); color: #fff; }

/* ── Tabla ───────────────────────────────────────────────── */

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  background: var(--superficie);
}
.table th, .table td {
  text-align: left;
  padding: 0.55rem 0.7rem;
  border-bottom: 1px solid var(--borde);
  vertical-align: top;
}
.table thead th {
  font-size: 0.68rem;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--tinta-suave);
  border-bottom: 1px solid var(--borde-fuerte);
  white-space: nowrap;
}
.table tbody tr:last-child td { border-bottom: none; }
.table tbody tr:hover { background: var(--fondo); }
.table-wrap { overflow-x: auto; }

/* ── Badges de estado (monocromo: relleno > tono > contorno) ── */

.badge {
  display: inline-block;
  padding: 0.08rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--borde);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.02em;
  white-space: nowrap;
  background: var(--gris-hover);
  color: var(--tinta-2);
}
.badge-ok { background: var(--tinta); border-color: var(--tinta); color: #fff; }
.badge-warn { background: var(--gris-hover); border-color: var(--borde-fuerte); color: var(--tinta); }
.badge-ko { background: var(--superficie); border: 1.5px solid var(--tinta); color: var(--tinta); font-weight: 750; }
.badge-muted { background: var(--fondo); border-color: var(--borde); color: var(--tinta-tenue); }

/* ── Formularios ─────────────────────────────────────────── */

.form-grid { display: grid; gap: 0.9rem; }
.form-grid label {
  display: block;
  font-weight: 600;
  font-size: 0.88rem;
}
.form-grid input,
.form-grid select,
.form-grid textarea {
  display: block;
  width: 100%;
  margin-top: 0.3rem;
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--borde-fuerte);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  background: var(--superficie);
  color: var(--tinta);
}
.form-grid input::placeholder { color: var(--tinta-tenue); }
.form-grid input:focus,
.form-grid select:focus,
.form-grid textarea:focus {
  outline: 2px solid var(--tinta);
  outline-offset: 1px;
  border-color: var(--tinta);
}
.form-grid .btn { justify-self: start; margin-top: 0.2rem; }
.field-error {
  color: var(--tinta);
  font-size: 0.85rem;
  font-weight: 700;
}
.field-error::before { content: "⚠ "; }

/* ── Hero ────────────────────────────────────────────────── */

.hero {
  text-align: center;
  padding: 3rem 1rem 2.2rem;
  margin-bottom: 1.6rem;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: -0.03em;
  margin-bottom: 0.6rem;
}
.hero p {
  color: var(--tinta-suave);
  font-size: 1.08rem;
  max-width: 42rem;
  margin: 0 auto 1.3rem;
}

/* ── Pasos numerados ─────────────────────────────────────── */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  list-style: none;
  counter-reset: paso;
}
.steps li {
  counter-increment: paso;
  background: var(--superficie);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  padding: 1.2rem;
  box-shadow: var(--sombra);
  font-size: 0.95rem;
}
.steps li::before {
  content: counter(paso);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.9rem;
  height: 1.9rem;
  margin-bottom: 0.7rem;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
}

/* ── QR ──────────────────────────────────────────────────── */

.qr-box {
  text-align: center;
  padding: 1.5rem;
  background: var(--superficie);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  box-shadow: var(--sombra);
  margin-bottom: 1.3rem;
}
.qr-box h3 { margin-bottom: 0.9rem; font-size: 0.98rem; }
.qr-box img {
  display: block;
  margin: 0 auto 1rem;
  border: 8px solid #fff;
  outline: 1px solid var(--borde);
  border-radius: 8px;
}

/* ── Secciones ───────────────────────────────────────────── */

.section { margin-bottom: 2.4rem; scroll-margin-top: 7.5rem; }
.section-title {
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  padding-bottom: 0.45rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--borde-fuerte);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.3rem;
  align-items: start;
}

.notice {
  background: var(--superficie);
  border: 1px solid var(--borde);
  border-left: 3px solid var(--tinta);
  border-radius: var(--radio);
  padding: 0.9rem 1.1rem;
  margin-bottom: 1.4rem;
  font-size: 0.95rem;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.3rem;
}
.page-header h1 { font-size: 1.45rem; }

.muted { color: var(--tinta-suave); font-size: 0.88rem; }

/* ── Páginas legales (aviso legal, devoluciones, envíos) ──── */

.legal h2 { font-size: 1.05rem; margin-bottom: 0.9rem; }
.legal p { margin-bottom: 0.9rem; }
.legal p:last-child { margin-bottom: 0; }
.legal a { color: var(--tinta); }
.legal dl {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.35rem 1.2rem;
  margin-bottom: 0.9rem;
}
.legal dt { font-weight: 650; }
.legal dd { margin: 0; }

/* ── Varios ──────────────────────────────────────────────── */

pre {
  background: var(--gris-hover);
  border: 1px solid var(--borde);
  border-radius: 8px;
  padding: 0.8rem 1rem;
  overflow-x: auto;
  font-size: 0.85rem;
}

.ok { color: var(--tinta); font-weight: 650; }
.ko { color: var(--tinta); font-weight: 750; }
.actions { white-space: nowrap; }
.actions form { display: inline-block; }

/* ── Impresión (páginas de QR imprimibles) ───────────────── */

@media print {
  .site-header, .site-footer, .site-nav, .panel-nav, nav, .btn, .steps, .hero p, .kpis,
  .no-print {
    display: none !important;
  }
  body { background: #fff; }
  .card, .qr-box { border: none; box-shadow: none; }
}

/* ── Móvil ───────────────────────────────────────────────── */

@media (max-width: 720px) {
  .container { margin: 1.2rem auto; }
  .steps { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .page-header { flex-direction: column; align-items: flex-start; }
  .table { display: block; overflow-x: auto; }
  .kpis { grid-template-columns: repeat(2, 1fr); }
  .legal dl { grid-template-columns: 1fr; gap: 0.15rem; }
  .legal dt { margin-top: 0.5rem; }
}

/* ── Centro de ayuda (/ayuda): prosa generada desde markdown ────── */
.prose h1 { font-size: 1.5rem; margin-bottom: 0.9rem; }
.prose h2 { font-size: 1.05rem; margin: 1.4rem 0 0.7rem; }
.prose h3 { font-size: 0.95rem; margin: 1.1rem 0 0.5rem; }
.prose p { margin-bottom: 0.9rem; color: var(--tinta-suave); }
.prose ul, .prose ol { margin: 0 0 0.9rem 1.3rem; color: var(--tinta-suave); }
.prose li { margin-bottom: 0.35rem; }
.prose a { color: var(--tinta); }
.prose pre {
  background: var(--fondo);
  border: 1px solid var(--borde);
  border-radius: 8px;
  padding: 0.8rem 1rem;
  margin-bottom: 0.9rem;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.5;
}
.prose blockquote {
  border-left: 3px solid var(--borde-fuerte);
  padding: 0.2rem 0 0.2rem 0.9rem;
  margin-bottom: 0.9rem;
  color: var(--tinta-suave);
}
.prose blockquote p:last-child { margin-bottom: 0; }
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 0.9rem;
  font-size: 0.88rem;
  display: block;
  overflow-x: auto;
}
.prose th, .prose td {
  text-align: left;
  padding: 0.5rem 0.7rem;
  border-bottom: 1px solid var(--borde);
  color: var(--tinta-suave);
}
.prose thead th { color: var(--tinta); font-weight: 650; border-bottom: 1.5px solid var(--borde-fuerte); }