/* Base común de los demos de acmarlon.dev
   Tipografía, componentes y accesibilidad según el Manual de Marca v1.0.
   Requiere tokens.css. Breakpoints: ≤520 móvil · ≤980 tablet · >980 escritorio. */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ma-paper);
  color: var(--ma-ink);
  font: 400 16px/1.7 var(--ma-font-body);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  min-height: 100dvh;
}
img, svg, canvas { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: var(--ma-blue-text); text-underline-offset: 3px; }
::selection { background: var(--ma-blue); color: #fff; }
[hidden] { display: none !important; }

h1, h2, h3, h4 {
  font-family: var(--ma-font-display);
  color: var(--ma-ink);
  text-wrap: balance;
  margin: 0;
}
h1 { font-weight: 800; font-size: clamp(32px, 5vw, 56px); line-height: 1.05; letter-spacing: -.03em; }
h2 { font-weight: 700; font-size: clamp(26px, 3.4vw, 40px); line-height: 1.15; letter-spacing: -.02em; }
h3 { font-weight: 600; font-size: 21px; line-height: 1.3; letter-spacing: -.01em; }
h4 { font-weight: 600; font-size: 16px; line-height: 1.35; letter-spacing: -.01em; }
p { margin: 0; text-wrap: pretty; }

.lead { font-size: 17.5px; line-height: 1.6; color: var(--ma-ink-3); }
.small { font-size: 14px; line-height: 1.55; }
.muted { color: var(--ma-ink-3); }
.eyebrow {
  font-family: var(--ma-font-mono); font-weight: 500; font-size: 13px;
  color: var(--ma-blue-text); letter-spacing: .01em;
}
.label {
  font-family: var(--ma-font-mono); font-weight: 500; font-size: 10.5px;
  text-transform: uppercase; letter-spacing: .07em; color: var(--ma-ink-4);
}
.metric {
  font-family: var(--ma-font-display); font-weight: 800; letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
}
.mono { font-family: var(--ma-font-mono); font-variant-numeric: tabular-nums; }
.grad-text {
  background: var(--ma-grad); -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
code, kbd {
  font-family: var(--ma-font-mono); font-size: .88em;
  background: var(--ma-fill); border: 1px solid var(--ma-line);
  border-radius: var(--ma-r-xs); padding: .05em .4em;
}
kbd { box-shadow: inset 0 -1px 0 var(--ma-line-strong); }

.container { width: 100%; max-width: var(--ma-container); margin: 0 auto; padding: 0 32px; }
@media (max-width: 980px) { .container { padding: 0 20px; } }
@media (max-width: 520px) { .container { padding: 0 16px; } }

/* ---------- Accesibilidad ---------- */
:focus-visible { outline: 2px solid var(--ma-blue); outline-offset: 3px; border-radius: 4px; }
.skip-link {
  position: absolute; left: 16px; top: -100px; z-index: 1000;
  background: var(--ma-blue); color: #fff; padding: 10px 16px;
  border-radius: var(--ma-r-sm); font-weight: 600; text-decoration: none;
}
.skip-link:focus { top: 12px; }
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- Iconos (Lucide, trazo 1.75) ---------- */
.icon {
  width: 20px; height: 20px; flex: none;
  fill: none; stroke: currentColor; stroke-width: 1.75;
  stroke-linecap: round; stroke-linejoin: round;
}
.icon-sm { width: 16px; height: 16px; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 10px 18px;
  border-radius: var(--ma-r-md); border: 1px solid transparent;
  font-weight: 600; font-size: 15px; line-height: 1.2; text-decoration: none;
  transition: background var(--ma-fast) var(--ma-ease), color var(--ma-fast) var(--ma-ease),
              border-color var(--ma-fast) var(--ma-ease), transform var(--ma-fast) var(--ma-ease),
              box-shadow var(--ma-fast) var(--ma-ease);
  white-space: nowrap;
}
.btn:disabled, .btn[aria-disabled="true"] { opacity: .45; cursor: not-allowed; transform: none !important; }
.btn-primary { background: var(--ma-blue); color: #fff; box-shadow: var(--ma-glow); padding: 12px 24px; font-size: 15.5px; }
.btn-primary:hover:not(:disabled) { background: var(--ma-blue-hover); transform: translateY(-2px); }
.btn-secondary { background: var(--ma-surface); color: var(--ma-ink); border-color: var(--ma-line-strong); }
.btn-secondary:hover:not(:disabled) { border-color: var(--ma-blue); color: var(--ma-blue-text); }
.btn-tinted { background: rgba(29,78,216,.08); color: var(--ma-blue-text); }
.btn-tinted:hover:not(:disabled) { background: rgba(29,78,216,.14); }
.btn-ghost { background: transparent; color: var(--ma-ink-2); }
.btn-ghost:hover:not(:disabled) { background: var(--ma-fill); color: var(--ma-ink); }
.btn-sm { min-height: 36px; padding: 6px 12px; font-size: 13.5px; border-radius: var(--ma-r-sm); }
.btn-icon { width: 44px; height: 44px; padding: 0; }
.btn-icon.btn-sm { width: 36px; height: 36px; }
.btn[aria-pressed="true"], .btn.is-active {
  background: rgba(29,78,216,.12); color: var(--ma-blue-text); border-color: rgba(29,78,216,.35);
}
@media (pointer: coarse) { .btn-sm, .btn-icon.btn-sm { min-height: 44px; min-width: 44px; } }

/* ---------- Formularios ---------- */
.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field > .field-label, .field-label {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  font-size: 13px; font-weight: 600; color: var(--ma-ink-2);
}
.field-hint { font-size: 12.5px; color: var(--ma-ink-4); line-height: 1.45; }
.field-error { font-size: 12.5px; color: var(--ma-error-text); line-height: 1.45; }
.input, .select, .textarea {
  width: 100%; min-height: 40px;
  background: var(--ma-surface-2); color: var(--ma-ink);
  border: 1.5px solid var(--ma-line-strong); border-radius: var(--ma-r-sm);
  padding: 8px 12px; font-size: 14.5px;
  transition: border-color var(--ma-fast), background var(--ma-fast);
}
.input:focus, .select:focus, .textarea:focus { border-color: var(--ma-blue); background: var(--ma-surface); outline: none; box-shadow: 0 0 0 3px rgba(29,78,216,.18); }
.input[aria-invalid="true"] { border-color: var(--ma-error); }
.select { appearance: none; padding-right: 34px;
  background-image: linear-gradient(45deg, transparent 50%, var(--ma-ink-3) 50%), linear-gradient(135deg, var(--ma-ink-3) 50%, transparent 50%);
  background-position: calc(100% - 17px) 50%, calc(100% - 12px) 50%;
  background-size: 5px 5px; background-repeat: no-repeat; }
.textarea { min-height: 96px; resize: vertical; font-family: var(--ma-font-mono); font-size: 13px; }
@media (max-width: 520px) { .input, .select, .textarea { font-size: 16px; } }
input[type="color"].input { padding: 3px; height: 40px; width: 52px; cursor: pointer; }

/* Rango */
input[type="range"] { width: 100%; accent-color: var(--ma-blue); min-height: 28px; cursor: pointer; }

/* Interruptor */
.switch { display: flex; align-items: center; justify-content: space-between; gap: 12px; font-size: 14px; color: var(--ma-ink-2); cursor: pointer; min-height: 36px; }
.switch input { appearance: none; width: 38px; height: 22px; border-radius: 999px; background: var(--ma-line-strong); position: relative; flex: none; cursor: pointer; transition: background var(--ma-fast); margin: 0; }
.switch input::after { content: ""; position: absolute; top: 3px; left: 3px; width: 16px; height: 16px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(15,23,42,.3); transition: transform var(--ma-fast) var(--ma-ease); }
.switch input:checked { background: var(--ma-blue); }
.switch input:checked::after { transform: translateX(16px); }

/* Control segmentado (grupo de radios) */
.segmented { display: flex; flex-wrap: wrap; gap: 4px; background: var(--ma-fill); border: 1px solid var(--ma-line); border-radius: var(--ma-r-md); padding: 3px; }
.segmented label { flex: 1 1 auto; position: relative; }
.segmented input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.segmented span { display: flex; align-items: center; justify-content: center; gap: 6px; min-height: 34px; padding: 4px 10px; border-radius: 8px; font-size: 13px; font-weight: 500; color: var(--ma-ink-3); text-align: center; white-space: nowrap; }
.segmented input:checked + span { background: var(--ma-surface); color: var(--ma-ink); box-shadow: 0 1px 3px rgba(15,23,42,.12); font-weight: 600; }
.segmented input:focus-visible + span { outline: 2px solid var(--ma-blue); outline-offset: 1px; }

/* ---------- Tarjetas, chips, insignias ---------- */
.card { background: var(--ma-surface); border: 1px solid var(--ma-line); border-radius: var(--ma-r-xl); box-shadow: var(--ma-e1); }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: var(--ma-r-pill); background: var(--ma-fill); border: 1px solid var(--ma-line); font-family: var(--ma-font-mono); font-size: 11.5px; color: var(--ma-ink-3); }
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: var(--ma-r-pill); font-size: 12.5px; font-weight: 600; line-height: 1.5; }
.badge-info { background: rgba(29,78,216,.1); color: var(--ma-blue-text); }
.badge-success { background: rgba(22,163,74,.12); color: var(--ma-success-text); }
.badge-warning { background: rgba(217,119,6,.12); color: var(--ma-warning-text); }
.badge-error { background: rgba(220,38,38,.12); color: var(--ma-error-text); }
.badge-neutral { background: var(--ma-fill); color: var(--ma-ink-3); }

/* ---------- Diálogo modal ---------- */
.dialog-backdrop { position: fixed; inset: 0; z-index: 200; background: var(--ma-overlay); backdrop-filter: blur(6px); display: flex; align-items: flex-start; justify-content: center; padding: 32px 16px; overflow-y: auto; animation: ma-fade var(--ma-fast) var(--ma-ease); }
.dialog { position: relative; width: 100%; max-width: 560px; margin: auto; background: var(--ma-surface); border-radius: var(--ma-r-2xl); overflow: hidden; box-shadow: var(--ma-e3); animation: ma-pop 220ms var(--ma-ease); }
.dialog-head { position: relative; overflow: hidden; background: var(--ma-grad-deep); color: #fff; padding: 28px 32px 24px; }
.dialog-head::after { content: ""; position: absolute; top: -60px; right: -30px; width: 240px; height: 240px; background: radial-gradient(circle, rgba(13,148,136,.5), transparent 70%); pointer-events: none; }
.dialog-head h2 { color: #fff; font-size: clamp(22px, 3vw, 28px); position: relative; z-index: 1; }
.dialog-head .eyebrow { color: var(--ma-teal-light); position: relative; z-index: 1; }
.dialog-head p { color: rgba(255,255,255,.86); font-size: 15px; line-height: 1.55; margin-top: 8px; position: relative; z-index: 1; }
.dialog-close { position: absolute; top: 16px; right: 16px; z-index: 2; width: 40px; height: 40px; border-radius: 10px; border: 1px solid rgba(255,255,255,.3); background: rgba(255,255,255,.14); color: #fff; display: flex; align-items: center; justify-content: center; }
.dialog-close:hover { background: rgba(255,255,255,.26); }
.dialog-body { padding: 24px 32px 28px; }
@media (max-width: 520px) { .dialog-head { padding: 26px 22px 22px; } .dialog-body { padding: 22px; } }
@keyframes ma-fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes ma-pop { from { opacity: 0; transform: translateY(12px) scale(.98); } to { opacity: 1; transform: none; } }

/* ---------- Popover informativo (ⓘ) ---------- */
.info-btn { display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; border-radius: 50%; border: 0; background: transparent; color: var(--ma-ink-4); padding: 0; position: relative; }
.info-btn::before { content: ""; position: absolute; inset: -10px; } /* área táctil ≥44px */
.info-btn:hover, .info-btn[aria-expanded="true"] { color: var(--ma-blue-text); }
.popover { position: fixed; z-index: 300; max-width: min(320px, calc(100vw - 32px)); background: var(--ma-ink); color: #F8FAFC; border-radius: var(--ma-r-md); padding: 12px 14px; font-size: 13.5px; line-height: 1.55; box-shadow: var(--ma-e2); animation: ma-fade 150ms ease; }
[data-theme="dark"] .popover { background: #F1F5F9; color: #0F172A; }
.popover strong { display: block; font-family: var(--ma-font-display); font-weight: 600; margin-bottom: 4px; }

/* ---------- Toast ---------- */
.toast-region { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); z-index: 400; display: flex; flex-direction: column; gap: 8px; align-items: center; pointer-events: none; width: max-content; max-width: calc(100vw - 32px); }
.toast { background: var(--ma-ink); color: #F8FAFC; padding: 10px 16px; border-radius: var(--ma-r-md); font-size: 14px; box-shadow: var(--ma-e2); animation: ma-pop 220ms var(--ma-ease); display: flex; align-items: center; gap: 8px; }
[data-theme="dark"] .toast { background: #F1F5F9; color: #0F172A; }

/* ---------- Shell: cabecera común de demos ---------- */
.ma-header { position: sticky; top: 0; z-index: 100; padding: 10px 16px; }
.ma-header-bar {
  max-width: 1440px; margin: 0 auto;
  display: flex; align-items: center; gap: 14px;
  background: var(--ma-glass); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--ma-line); border-radius: 16px; box-shadow: 0 8px 30px rgba(15,23,42,.06);
  padding: 8px 10px 8px 12px; min-height: 60px;
}
.ma-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ma-ink); flex: none; border-radius: 10px; }
.ma-mono { width: 34px; height: 34px; border-radius: 22%; background: var(--ma-grad); display: flex; align-items: center; justify-content: center; font-family: var(--ma-font-display); font-weight: 700; font-size: 13px; color: #fff; letter-spacing: .5px; flex: none; }
.ma-brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.ma-brand-name { font-family: var(--ma-font-display); font-weight: 600; font-size: 15px; letter-spacing: -.01em; }
.ma-brand-sub { font-family: var(--ma-font-mono); font-size: 11px; color: var(--ma-ink-4); }
.ma-sep { width: 1px; height: 28px; background: var(--ma-line); flex: none; }
.ma-demo-title { flex: 0 1 auto; font-family: var(--ma-font-display); font-weight: 600; font-size: 15px; letter-spacing: -.01em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.ma-nav { display: flex; gap: 2px; margin-left: auto; }
.ma-nav a { display: inline-flex; align-items: center; gap: 7px; min-height: 40px; padding: 6px 12px; border-radius: 10px; text-decoration: none; color: var(--ma-ink-3); font-size: 14px; font-weight: 500; }
.ma-nav a:hover { background: var(--ma-fill); color: var(--ma-ink); }
.ma-nav a[aria-current="page"] { color: var(--ma-blue-text); background: rgba(29,78,216,.08); font-weight: 600; }
.ma-actions { display: flex; align-items: center; gap: 4px; flex: none; }
.ma-lang { font-family: var(--ma-font-mono); font-size: 12px; font-weight: 500; letter-spacing: .5px; min-width: 44px; }
@media (max-width: 980px) {
  .ma-header-bar { flex-wrap: wrap; row-gap: 6px; }
  .ma-nav { order: 10; width: 100%; margin-left: 0; justify-content: space-between; border-top: 1px solid var(--ma-line); padding-top: 6px; }
  .ma-nav a { flex: 1; justify-content: center; }
  .ma-actions { margin-left: auto; }
}
@media (max-width: 520px) {
  .ma-header { padding: 8px; }
  .ma-header-bar { padding: 6px 6px 6px 8px; gap: 8px; }
  .ma-demo-title { flex: 1 1 0; font-size: 14px; }
  .ma-actions { margin-left: 0; }
  .ma-actions .btn-icon.btn-sm { width: 40px; min-width: 40px; height: 40px; }
  .ma-brand-text, .ma-sep { display: none; }
  .ma-nav a { font-size: 13px; padding: 6px 6px; gap: 5px; }
  .ma-nav a .icon { width: 18px; height: 18px; }
}

.ma-footer { border-top: 1px solid var(--ma-line); padding: 28px 0 36px; margin-top: 48px; color: var(--ma-ink-3); font-size: 14px; }
.ma-footer-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; }
.ma-footer .by { font-family: var(--ma-font-mono); font-size: 11px; color: var(--ma-ink-4); }

/* ---------- Movimiento reducido ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}

/* Anclas y desplazamientos bajo la cabecera fija (manual: scroll-margin-top) */
[id], h1, h2, h3, .widget, .panel-section { scroll-margin-top: calc(var(--ma-header-h, 80px) + 16px); }