/* ============================================================
   base.css — reset, tipografía, botones, formularios, utilidades
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: clamp(1rem, .96rem + .2vw, 1.0625rem);
  line-height: 1.6;
  color: var(--color-ink);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img, svg, picture { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--color-primary); text-underline-offset: 3px; }
a:hover { color: var(--color-primary-hover); }

h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.15; font-weight: 600; letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 1.4rem + 3vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 1.2rem + 1.5vw, 2.25rem); }
h3 { font-size: clamp(1.2rem, 1.1rem + .6vw, 1.5rem); }
p + p { margin-top: var(--space-3); }
.muted { color: var(--color-muted); }

/* Foco visible y movimiento reducido */
:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}

/* ── Utilidades ── */
.container { width: min(100% - 2 * var(--space-4), var(--container)); margin-inline: auto; }
.stack > * + * { margin-top: var(--space-4); }
.row { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.hidden { display: none !important; }
.section { padding-block: var(--space-7); }
@media (min-width: 768px) { .section { padding-block: var(--space-8); } }

/* ── Botones ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  min-height: var(--tap); padding: 0 var(--space-5);
  border: 1.5px solid transparent; border-radius: 999px;
  font-weight: 600; text-decoration: none; cursor: pointer;
  background: var(--color-surface); color: var(--color-ink); border-color: var(--color-line);
  transition: background .15s, border-color .15s, transform .1s;
}
.btn:hover { border-color: var(--color-ink); color: var(--color-ink); }
.btn:active { transform: translateY(1px); }
.btn[disabled], .btn[aria-disabled="true"] { opacity: .55; cursor: not-allowed; }
.btn-primary { background: var(--color-primary); border-color: var(--color-primary); color: var(--color-primary-ink); }
.btn-primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); color: var(--color-primary-ink); }
.btn-ghost { background: transparent; border-color: transparent; }
.btn-ghost:hover { background: var(--color-line); border-color: transparent; }
.btn-whatsapp { background: var(--color-whatsapp); border-color: var(--color-whatsapp); color: var(--color-primary-ink); }
.btn-whatsapp:hover { background: var(--color-whatsapp-hover); border-color: var(--color-whatsapp-hover); color: var(--color-primary-ink); }
.btn-danger { background: var(--color-danger); border-color: var(--color-danger); color: var(--color-primary-ink); }
.btn-danger:hover { background: var(--color-danger); border-color: var(--color-ink); color: var(--color-primary-ink); }
.btn-sm { min-height: 36px; padding: 0 var(--space-4); font-size: .9rem; }
@media (pointer: coarse) { .btn-sm { min-height: var(--tap); } }
.btn-lg { min-height: 52px; padding: 0 var(--space-6); font-size: 1.05rem; }
.btn-block { width: 100%; }
.btn.is-loading { position: relative; color: transparent; pointer-events: none; }
.btn.is-loading::after {
  content: ""; position: absolute; width: 18px; height: 18px; border-radius: 50%;
  border: 2.5px solid var(--color-primary-ink); border-right-color: transparent; animation: spin .7s linear infinite;
}
.btn-ghost.is-loading::after { border-color: var(--color-ink); border-right-color: transparent; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Formularios ── */
.field { display: flex; flex-direction: column; gap: var(--space-1); }
.field > label, .label { font-weight: 600; font-size: .92rem; }
.input, .select, .textarea {
  width: 100%; min-height: var(--tap); padding: var(--space-2) var(--space-3);
  background: var(--color-surface); border: 1.5px solid var(--color-line); border-radius: var(--radius-sm);
}
.textarea { min-height: 96px; resize: vertical; }
.input:hover, .select:hover, .textarea:hover { border-color: var(--color-muted); }
.input:focus-visible, .select:focus-visible, .textarea:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 0; border-color: var(--color-accent); }
.field-hint { font-size: .85rem; color: var(--color-muted); }
.field-error { font-size: .85rem; color: var(--color-danger); font-weight: 500; }
.field.has-error .input, .field.has-error .select, .field.has-error .textarea { border-color: var(--color-danger); }
.check { display: flex; align-items: center; gap: var(--space-2); min-height: var(--tap); cursor: pointer; }
.check input { width: 22px; height: 22px; accent-color: var(--color-primary); flex: none; }
.form-error { padding: var(--space-3); border-radius: var(--radius-sm); border: 1px solid var(--color-danger); color: var(--color-danger); background: var(--color-surface); font-weight: 500; }
.form-ok { padding: var(--space-3); border-radius: var(--radius-sm); border: 1px solid var(--color-accent); color: var(--color-accent); background: var(--color-surface); font-weight: 500; }

/* ── Tablas (en móvil cada fila pasa a tarjeta si la tabla lleva .table-cards) ── */
.table-wrap { overflow-x: auto; border: 1px solid var(--color-line); border-radius: var(--radius); background: var(--color-surface); }
.table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.table th, .table td { padding: var(--space-3) var(--space-4); text-align: left; border-bottom: 1px solid var(--color-line); vertical-align: middle; }
.table th { font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; color: var(--color-muted); background: var(--color-bg); white-space: nowrap; }
.table tr:last-child td { border-bottom: 0; }
.table .num { text-align: right; font-variant-numeric: tabular-nums; }

/* ── Badges y chips ── */
.badge { display: inline-flex; align-items: center; padding: 2px 10px; border-radius: 999px; font-size: .78rem; font-weight: 600; background: var(--color-line); color: var(--color-ink); white-space: nowrap; }
.badge-ok      { background: color-mix(in srgb, var(--color-accent) 16%, var(--color-surface)); color: var(--color-accent); }
.badge-warn    { background: color-mix(in srgb, var(--color-warning) 16%, var(--color-surface)); color: var(--color-warning); }
.badge-danger  { background: color-mix(in srgb, var(--color-danger) 14%, var(--color-surface)); color: var(--color-danger); }
.badge-primary { background: color-mix(in srgb, var(--color-primary) 14%, var(--color-surface)); color: var(--color-primary-hover); }

.chips { display: flex; gap: var(--space-2); overflow-x: auto; padding-bottom: var(--space-2); scrollbar-width: thin; }
.chip {
  flex: none; display: inline-flex; align-items: center; gap: var(--space-1); min-height: var(--tap); padding: 0 var(--space-4);
  border: 1.5px solid var(--color-line); border-radius: 999px; background: var(--color-surface);
  font-weight: 500; cursor: pointer; white-space: nowrap;
}
.chip:hover { border-color: var(--color-ink); }
.chip[aria-pressed="true"], .chip.is-active { background: var(--color-ink); color: var(--color-bg); border-color: var(--color-ink); }
.chip[disabled], .chip.is-disabled { opacity: .5; cursor: not-allowed; text-decoration: line-through; }

/* ── Skeleton (carga) ── */
.skeleton { background: linear-gradient(90deg, var(--color-line) 25%, var(--color-bg) 50%, var(--color-line) 75%); background-size: 200% 100%; animation: shimmer 1.4s infinite; border-radius: var(--radius-sm); }
@keyframes shimmer { to { background-position: -200% 0; } }

/* ── Estados vacíos / error ── */
.empty { text-align: center; padding: var(--space-7) var(--space-4); color: var(--color-muted); }
.empty .emoji { font-size: 2.5rem; display: block; margin-bottom: var(--space-3); }