/* ==========================================================================
   RifaYa — hoja base: tokens, reset y primitivas compartidas.
   La carga index.html (página pública) y también admin.html, que añade
   encima su propia hoja /css/admin.css con las piezas exclusivas del panel.
   Mobile-first real: correcto desde 320 px, sin scroll horizontal.
   Sin librerías, sin CDNs, sin build.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Tokens de diseño (paleta clara por defecto)
   -------------------------------------------------------------------------- */
:root {
  /* Superficies y texto */
  --bg: #eef1f7;
  --surface: #ffffff;
  --surface-2: #f6f8fc;
  --text: #131a24;
  --muted: #4f5b6c;
  --border: #dae0ea;
  --border-strong: #bcc6d5;

  /* Acento (selección) */
  --accent: #4a4bd6;
  --accent-strong: #3b3cbd;
  --accent-on: #ffffff;
  --accent-soft: #e8e8fc;

  /* Verde (pagado / WhatsApp / confirmar) */
  --ok: #12854a;
  --ok-strong: #0d6d3c;
  --ok-on: #ffffff;
  --ok-soft: #d7f3e2;
  --ok-border: #7fd3a6;
  --ok-text: #0a5730;

  /* Ocupado / reservado */
  --taken: #e3e7ee;
  --taken-border: #c6cedb;
  --taken-text: #4f5966;

  /* Peligro */
  --danger: #bf2626;
  --danger-soft: #fceaea;
  --danger-border: #f0bcbc;

  /* Efectos (nuevos en v2) */
  --ring: rgba(74, 75, 214, 0.28);
  --glow-a: rgba(74, 75, 214, 0.16);
  --glow-b: rgba(18, 133, 74, 0.12);
  --bar-bg: rgba(255, 255, 255, 0.9);

  /* Formas y profundidad */
  --r-lg: 18px;
  --r: 13px;
  --r-sm: 9px;
  --shadow-sm: 0 1px 2px rgba(19, 26, 36, 0.06);
  --shadow: 0 2px 4px rgba(19, 26, 36, 0.05), 0 10px 26px rgba(19, 26, 36, 0.07);
  --shadow-bar: 0 -8px 28px rgba(19, 26, 36, 0.14);

  /* Métricas */
  --pad: clamp(10px, 3vw, 22px);
  --maxw: 640px;
  --tap: 44px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c1016;
    --surface: #161c25;
    --surface-2: #1d2531;
    --text: #e7edf6;
    --muted: #9dabbd;
    --border: #2a3341;
    --border-strong: #3a4657;

    --accent: #8686f8;
    --accent-strong: #9b9bff;
    --accent-on: #11131f;
    --accent-soft: #232449;

    --ok: #2fb567;
    --ok-strong: #43c97a;
    --ok-on: #06210f;
    --ok-soft: #123425;
    --ok-border: #2f7049;
    --ok-text: #82e5ad;

    --taken: #1e2631;
    --taken-border: #303b49;
    --taken-text: #8a97a8;

    --danger: #ff7b7b;
    --danger-soft: #351e1f;
    --danger-border: #5a3132;

    --ring: rgba(134, 134, 248, 0.42);
    --glow-a: rgba(134, 134, 248, 0.16);
    --glow-b: rgba(47, 181, 103, 0.12);
    --bar-bg: rgba(22, 28, 37, 0.92);

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow: 0 2px 4px rgba(0, 0, 0, 0.35), 0 10px 26px rgba(0, 0, 0, 0.45);
    --shadow-bar: 0 -8px 28px rgba(0, 0, 0, 0.55);
  }
}

/* --------------------------------------------------------------------------
   2. Reset mínimo
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
p,
ul,
figure {
  margin: 0;
}

ul {
  padding: 0;
  list-style: none;
}

img {
  max-width: 100%;
}

button,
input {
  font: inherit;
  color: inherit;
}

[hidden] {
  display: none !important;
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* --------------------------------------------------------------------------
   3. Estructura de página (primitivas compartidas)
   -------------------------------------------------------------------------- */
.page {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.page--bar {
  /* espacio de reserva por la barra fija; app.js lo ajusta al alto real */
  padding-bottom: 260px;
}

.section {
  margin-top: 22px;
}

.section__title {
  margin: 0 0 10px;
  font-size: 0.98rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--text);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
  padding: clamp(12px, 3.5vw, 18px);
}

/* --------------------------------------------------------------------------
   4. Cabecera de la página pública
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(22px, 7vw, 40px) var(--pad) clamp(16px, 5vw, 26px);
  text-align: center;
}

.hero::before {
  content: "";
  position: absolute;
  inset: -40% -20% auto -20%;
  height: 190%;
  z-index: -1;
  background:
    radial-gradient(58% 46% at 22% 12%, var(--glow-a), transparent 70%),
    radial-gradient(52% 44% at 84% 4%, var(--glow-b), transparent 72%);
  pointer-events: none;
}

.hero__inner {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.hero__eyebrow {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.hero__title {
  font-size: clamp(1.7rem, 8vw, 2.5rem);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.025em;
  overflow-wrap: break-word;
  max-width: 100%;
}

.hero__prize {
  display: inline-flex;
  align-items: baseline;
  justify-content: center;
  gap: 8px;
  max-width: 100%;
  font-size: clamp(1.02rem, 4.4vw, 1.2rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--accent);
  overflow-wrap: break-word;
}

.hero__prize-icon {
  flex: 0 0 auto;
  font-size: 1.1em;
}

.hero__tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  max-width: 100%;
}

.hero__hint {
  margin-top: 2px;
  font-size: 0.88rem;
  line-height: 1.45;
  color: var(--muted);
  max-width: 34ch;
  overflow-wrap: break-word;
}

/* Etiquetas informativas de la cabecera (lotería y precio por boleta) */
.tag {
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
  max-width: 100%;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  font-size: 0.84rem;
  line-height: 1.3;
  overflow-wrap: anywhere;
}

.tag__label {
  color: var(--muted);
  font-weight: 600;
}

.tag__value {
  font-weight: 800;
  color: var(--text);
}

.tag--precio {
  background: var(--ok-soft);
  border-color: var(--ok-border);
}

.tag--precio .tag__value {
  color: var(--ok-text);
  font-variant-numeric: tabular-nums;
}

.tag--precio .tag__label {
  color: var(--ok-text);
  opacity: 0.85;
}

/* --------------------------------------------------------------------------
   5. Tarjeta del grid: encabezado, progreso, números y leyenda
   -------------------------------------------------------------------------- */
.grid-card {
  padding: clamp(10px, 3vw, 16px);
}

.grid-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 2px 12px;
  margin-bottom: 8px;
}

.grid-head .section__title {
  margin: 0;
}

.grid-head__count {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.progress {
  height: 6px;
  margin-bottom: 12px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  overflow: hidden;
}

.progress__bar {
  display: block;
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--ok));
  transition: width 0.35s ease;
}

.grid {
  display: grid;
  grid-template-columns: repeat(10, minmax(0, 1fr));
  gap: clamp(3px, 1vw, 6px);
}

.cell {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  width: 100%;
  min-width: 0;
  padding: 0;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-sm);
  background: var(--surface-2);
  color: var(--text);
  font-size: clamp(10px, 3.1vw, 15px);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: transform 0.12s ease, background-color 0.15s ease, border-color 0.15s ease,
    box-shadow 0.15s ease, color 0.15s ease;
}

.cell:hover:not(:disabled) {
  border-color: var(--accent);
}

.cell:active:not(:disabled) {
  transform: scale(0.9);
}

.cell:focus-visible {
  position: relative;
  z-index: 2;
}

.cell--sel {
  position: relative;
  z-index: 1;
  background: var(--accent);
  border-color: var(--accent-strong);
  color: var(--accent-on);
  box-shadow: 0 0 0 3px var(--ring);
  transform: scale(1.04);
}

.cell--sel:active:not(:disabled) {
  transform: scale(0.95);
}

.cell--reservado {
  background: var(--taken);
  border-color: var(--taken-border);
  color: var(--taken-text);
  text-decoration: line-through;
}

.cell--pagado {
  background: var(--ok-soft);
  border-color: var(--ok-border);
  color: var(--ok-text);
}

.cell:disabled {
  cursor: not-allowed;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  justify-content: center;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.legend__item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  white-space: nowrap;
}

.swatch {
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
  border-radius: 5px;
  border: 1px solid var(--border-strong);
}

.swatch--libre {
  background: var(--surface-2);
  border-color: var(--border-strong);
}

.swatch--sel {
  background: var(--accent);
  border-color: var(--accent-strong);
}

.swatch--reservado {
  background: var(--taken);
  border-color: var(--taken-border);
}

.swatch--pagado {
  background: var(--ok-soft);
  border-color: var(--ok-border);
}

/* --------------------------------------------------------------------------
   6. Barra inferior fija (página pública)
   -------------------------------------------------------------------------- */
.bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 20;
  background: var(--surface);
  border-top: 1px solid var(--border);
  box-shadow: var(--shadow-bar);
  padding: 12px var(--pad) calc(12px + env(safe-area-inset-bottom));
}

@supports (backdrop-filter: blur(2px)) or (-webkit-backdrop-filter: blur(2px)) {
  .bar {
    background: var(--bar-bg);
    -webkit-backdrop-filter: blur(14px) saturate(1.4);
    backdrop-filter: blur(14px) saturate(1.4);
  }
}

.bar__inner {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.bar__resumen {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.bar__summary {
  font-size: 0.94rem;
  font-weight: 700;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  overflow-wrap: break-word;
}

.bar__summary--vacio {
  font-weight: 500;
  color: var(--muted);
}

.bar__total {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 8px;
  padding: 9px 12px;
  border-radius: var(--r);
  background: var(--ok-soft);
  border: 1px solid var(--ok-border);
  color: var(--ok-text);
  font-variant-numeric: tabular-nums;
}

.bar__total-calc {
  font-size: 0.84rem;
  font-weight: 600;
  overflow-wrap: anywhere;
}

.bar__total-eq {
  margin-left: auto;
  font-size: 0.9rem;
  font-weight: 700;
  opacity: 0.75;
}

.bar__total-monto {
  font-size: clamp(1.15rem, 5.5vw, 1.4rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.bar__fields {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(128px, 1fr));
  gap: 8px;
}

/* --------------------------------------------------------------------------
   7. Formularios (primitivas compartidas)
   -------------------------------------------------------------------------- */
.form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.label {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.input {
  width: 100%;
  min-width: 0;
  min-height: var(--tap);
  padding: 10px 12px;
  font-size: 16px; /* evita el zoom automático de iOS */
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: var(--r);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.input::placeholder {
  color: var(--muted);
  opacity: 0.75;
}

.input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--ring);
}

.input:focus-visible {
  outline: none;
}

.help {
  font-size: 0.8rem;
  line-height: 1.45;
  color: var(--muted);
}

.msg {
  font-size: 0.86rem;
  font-weight: 700;
  border-radius: var(--r);
  padding: 9px 12px;
  border: 1px solid transparent;
  overflow-wrap: break-word;
}

.msg--ok {
  background: var(--ok-soft);
  border-color: var(--ok-border);
  color: var(--ok-text);
}

.msg--err {
  background: var(--danger-soft);
  border-color: var(--danger-border);
  color: var(--danger);
}

/* --------------------------------------------------------------------------
   8. Botones (primitivas compartidas)
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: var(--tap);
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: var(--r);
  background: var(--surface-2);
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: transform 0.12s ease, background-color 0.15s ease, box-shadow 0.15s ease,
    opacity 0.15s ease;
}

.btn:active:not(:disabled) {
  transform: scale(0.98);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn--block {
  width: 100%;
}

.btn--sm {
  min-height: 38px;
  padding: 7px 12px;
  font-size: 0.85rem;
}

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

.btn--wa {
  background: var(--ok);
  border-color: var(--ok-strong);
  color: var(--ok-on);
  font-size: 1.02rem;
  min-height: 52px;
  box-shadow: 0 6px 18px rgba(18, 133, 74, 0.28);
}

.btn--wa:disabled {
  box-shadow: none;
}

.btn--ghost {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--text);
}

.btn--danger {
  background: var(--danger-soft);
  border-color: var(--danger-border);
  color: var(--danger);
}

/* --------------------------------------------------------------------------
   9. Toast accesible (primitiva compartida)
   -------------------------------------------------------------------------- */
.toast {
  position: fixed;
  top: calc(10px + env(safe-area-inset-top));
  left: 50%;
  transform: translateX(-50%);
  z-index: 60;
  width: min(calc(100vw - 20px), 460px);
  padding: 11px 14px;
  border-radius: var(--r);
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow);
  font-size: 0.9rem;
  font-weight: 700;
  text-align: center;
  overflow-wrap: break-word;
  animation: toast-in 0.22s ease-out;
}

.toast--ok {
  background: var(--ok-soft);
  border-color: var(--ok-border);
  color: var(--ok-text);
}

.toast--error {
  background: var(--danger-soft);
  border-color: var(--danger-border);
  color: var(--danger);
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translate(-50%, -14px);
  }
  to {
    opacity: 1;
    transform: translate(-50%, 0);
  }
}

/* --------------------------------------------------------------------------
   10. Enlaces, chips, insignias y vacíos (primitivas compartidas)
   -------------------------------------------------------------------------- */
.link {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
  overflow-wrap: anywhere;
}

.link:hover,
.link:focus-visible {
  text-decoration: underline;
}

.link--wa {
  color: var(--ok);
}

.chips {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  padding: 3px 7px;
  border-radius: 8px;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  font-size: 0.82rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.chip--pagado {
  background: var(--ok-soft);
  border-color: var(--ok-border);
  color: var(--ok-text);
}

.badge {
  flex: 0 0 auto;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border: 1px solid transparent;
  white-space: nowrap;
}

.badge--pagado {
  background: var(--ok-soft);
  border-color: var(--ok-border);
  color: var(--ok-text);
}

.badge--reservado {
  background: var(--taken);
  border-color: var(--taken-border);
  color: var(--taken-text);
}

.empty {
  padding: 20px 14px;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
  background: var(--surface);
  border: 1px dashed var(--border-strong);
  border-radius: var(--r-lg);
}

.footer {
  padding: 22px var(--pad) calc(22px + env(safe-area-inset-bottom));
  text-align: center;
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--muted);
}

/* --------------------------------------------------------------------------
   11. Preferencias de accesibilidad
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .cell--sel,
  .cell:active:not(:disabled),
  .btn:active:not(:disabled) {
    transform: none;
  }
}