/* ==========================================================================
   CosteSoftware — calculadora de tokens/API de IA (ES/EN)
   Hoja propia de la página; reutiliza los tokens de styles.css (claro y oscuro
   los gobierna el propio sitio con prefers-color-scheme). No define marca nueva:
   mismos colores, radios, eyebrow, botones y la "ficha de decisión" navy de la portada.
   Alcance: todo bajo .tokens-page / .tokens-* ; los ids y clases del HTML no cambian.
   ========================================================================== */

.tokens-page {
  --tk-on-accent: #ffffff;
  --tk-danger: #b42318;
  --tk-danger-bg: #fef3f2;
  --tk-ease: cubic-bezier(0.23, 1, 0.32, 1);
  --tk-ink-muted: #b9c8da;      /* mismo gris azulado que .decision-sheet dt / .footer-brand p */
  --tk-ink-line: rgb(255 255 255 / 16%);
  background-color: var(--surface);
  background-image:
    radial-gradient(circle at 92% 0, rgb(72 209 176 / 12%), transparent 20rem),
    linear-gradient(180deg, var(--surface-subtle) 0, var(--surface) 26rem);
  background-repeat: no-repeat;
}

/* Superficies del navegador tematizadas con la paleta (selección, cursor, controles nativos) */
.tokens-page ::selection { background: color-mix(in srgb, var(--accent) 30%, transparent); }
.tokens-page input { caret-color: var(--accent); accent-color: var(--accent); }
.tokens-page .tokens-summary ::selection { background: rgb(255 255 255 / 28%); }

/* ---------- Estructura de la página ---------- */
.tokens-page .tokens-main { padding-block: clamp(2rem, 5vw, 3.5rem) clamp(3rem, 6vw, 4.5rem); }

.tokens-intro { max-width: 46rem; margin-bottom: clamp(1.5rem, 3vw, 2.5rem); }
.tokens-intro .eyebrow { margin-bottom: 0.75rem; }
.tokens-intro h1 {
  max-width: 24ch;
  margin: 0 0 1rem;
  font-size: clamp(2rem, 3.6vw, 2.75rem);
  line-height: 1.12;
}
.tokens-intro > p:last-child {
  max-width: 40rem;
  margin: 0;
  color: var(--text-muted);
  font-size: clamp(1.0625rem, 1.5vw, 1.2rem);
  line-height: 1.6;
}

.tokens-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 1.5rem;
  align-items: start;
}

/* ---------- Paneles ---------- */
.tokens-panel {
  min-width: 0;
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);   /* 16 px: dentro del rango de tarjetas y igual que .review-card */
  background: var(--surface);
}
.tokens-panel h2 {
  margin: 0 0 0.5rem;
  font-size: 1.375rem;
  line-height: 1.25;
  letter-spacing: -0.01em;
}
.tokens-panel > p { margin: 0; color: var(--text-muted); }

/* ---------- Formulario ---------- */
.tokens-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem 1rem;
  margin-block: 1.5rem 1rem;
}
/* Las tarifas forman un segundo grupo: separación sutil, sin añadir marcado */
.tokens-field:nth-child(n + 5) { padding-top: 1.5rem; border-top: 1px solid var(--line); }

.tokens-field label,
.tokens-page #token-form > label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 650;
  line-height: 1.35;
}
.tokens-page #token-form > label { margin-top: 1.5rem; }

.tokens-page input {
  width: 100%;
  min-width: 0;
  min-height: 3rem;
  padding: 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text);
  background: var(--surface);
  font: inherit;
  font-variant-numeric: tabular-nums;
  transition: border-color 150ms var(--tk-ease), box-shadow 150ms var(--tk-ease);
}
.tokens-page input:focus-visible,
.tokens-page button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}
.tokens-page input:focus-visible { border-color: var(--accent); }
.tokens-page input[aria-invalid="true"] {
  border-color: var(--tk-danger);
  background: var(--tk-danger-bg);
  box-shadow: inset 0 0 0 1px var(--tk-danger);   /* refuerzo sin cambiar el tamaño de la caja */
}

.tokens-help {
  display: block;
  margin-block: 0.5rem 0;
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.45;
}
.tokens-error {
  display: block;
  min-height: 1.5rem;
  padding-top: 0.25rem;
  color: var(--tk-danger);
  font-size: 0.875rem;
  font-weight: 650;
  line-height: 1.4;
}

/* ---------- Acciones ---------- */
.tokens-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.5rem; }
.tokens-page button {
  min-height: 3rem;
  padding: 0.75rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text);
  background: var(--surface);
  font: inherit;
  font-weight: 750;
  line-height: 1.2;
  cursor: pointer;
  transition: background-color 150ms var(--tk-ease), border-color 150ms var(--tk-ease), color 150ms var(--tk-ease), transform 120ms var(--tk-ease);
}
.tokens-page button.tokens-primary {
  border-color: var(--accent);
  color: var(--tk-on-accent);
  background: var(--accent);
  box-shadow: 0 0.65rem 1.5rem rgb(29 93 215 / 20%);
}
.tokens-page button[type="reset"] { border-color: transparent; color: var(--text-muted); background: transparent; }
.tokens-page button:not(:disabled):active { transform: scale(0.97); }
.tokens-page button:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }

/* ---------- Avisos del formulario ---------- */
.tokens-note {
  margin: 1rem 0 0;
  padding: 0.75rem 1rem;
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
  border-radius: var(--radius-sm);
  color: var(--text);
  background: var(--accent-soft);
  font-size: 0.9375rem;
}
/* Estado de la región aria-live: visible como resumen junto al botón (en móvil el resultado queda debajo) */
.tokens-page #form-status:not(:empty) {
  margin: 1rem 0 0;
  padding: 0.75rem 1rem;
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
  border-radius: var(--radius-sm);
  color: var(--text);
  background: var(--accent-soft);
  font-weight: 650;
}
.tokens-page #form-status:empty { margin: 0; }

/* ---------- Resultado: misma ficha navy de la portada (.decision-sheet) ---------- */
.tokens-summary {
  position: relative;
  overflow: hidden;
  border-color: transparent;     /* elevación declarada una sola vez: sombra (el formulario usa solo borde) */
  color: #ffffff;
  background: var(--surface-strong);
  box-shadow: var(--shadow);
}
.tokens-summary::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgb(255 255 255 / 5%) 1px, transparent 1px), linear-gradient(90deg, rgb(255 255 255 / 5%) 1px, transparent 1px);
  background-size: 2rem 2rem;
  mask-image: linear-gradient(to bottom, black, transparent 65%);
  pointer-events: none;
}
.tokens-summary > * { position: relative; }
.tokens-summary h2,
.tokens-summary h3,
.tokens-summary strong { color: #ffffff; }
.tokens-summary h3 { margin: 0 0 0.5rem; font-size: 1.125rem; }
.tokens-summary p,
.tokens-summary .tokens-help { color: var(--tk-ink-muted); }
.tokens-summary #result-empty p { margin: 0; }

.tokens-summary .tokens-label {
  margin: 1.5rem 0 0;
  color: var(--signal-bright);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
.tokens-summary .tokens-total {
  margin: 0.25rem 0 0.5rem;
  color: #ffffff;
  font-size: clamp(2rem, 5vw, 2.75rem);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}
.tokens-summary #result-values > p:not(.tokens-help):not(.tokens-total):not(.tokens-note) { margin: 0 0 1.5rem; }
.tokens-summary #result-example,
.tokens-summary #result-context { margin: 0 0 0.75rem; }
.tokens-summary .tokens-note {
  border-color: rgb(255 255 255 / 22%);
  color: #ffffff;
  background: rgb(255 255 255 / 8%);
}
.tokens-breakdown { margin: 0 0 1rem; }
.tokens-breakdown > div { padding: 1rem 0; border-top: 1px solid var(--tk-ink-line); }
.tokens-breakdown dt { color: var(--tk-ink-muted); font-size: 0.875rem; font-weight: 650; }
.tokens-breakdown dd { margin: 0.25rem 0 0; overflow-wrap: anywhere; font-variant-numeric: tabular-nums; }
.tokens-boundary { margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid var(--tk-ink-line); }
.tokens-page #scenario-label:empty { display: none; }

/* Entrada discreta del resultado (mejora progresiva; sin efecto si el navegador no la soporta) */
#result-values { transition: opacity 180ms var(--tk-ease), transform 180ms var(--tk-ease); }
@starting-style { #result-values { opacity: 0; transform: translateY(6px); } }

/* ---------- Método y enlaces ---------- */
.tokens-method { max-width: 47.5rem; margin-top: 3.5rem; }
.tokens-method h2 { margin: 0 0 1rem; font-size: 1.5rem; line-height: 1.25; }
.tokens-method h3 { margin: 1.5rem 0 0.5rem; font-size: 1.125rem; }
.tokens-method p { max-width: 68ch; margin: 0 0 1rem; color: var(--text-muted); }
.tokens-method + .tokens-method { margin-top: 2.5rem; padding-top: 2rem; border-top: 1px solid var(--line); }

.tokens-page [hidden] { display: none !important; }

/* Pie: los textos con color en línea de la plantilla quedaban ilegibles sobre el fondo navy */
.tokens-page .site-footer p { color: var(--tk-ink-muted); }

/* ---------- Hover solo en dispositivos con puntero ---------- */
@media (hover: hover) {
  .tokens-page input:not(:focus-visible):not([aria-invalid="true"]):hover { border-color: var(--accent); }
  .tokens-page button:not(:disabled):hover { border-color: var(--accent); background: var(--surface-subtle); }
  .tokens-page button.tokens-primary:not(:disabled):hover { background: var(--accent-hover); border-color: var(--accent-hover); }
  .tokens-page button[type="reset"]:not(:disabled):hover { border-color: transparent; color: var(--text); }
}

/* ---------- Oscuro: solo lo que esta página añade; los tokens base los cambia styles.css ---------- */
@media (prefers-color-scheme: dark) {
  .tokens-page {
    --tk-on-accent: #08111d;
    --tk-danger: #ffb4a9;
    --tk-danger-bg: color-mix(in srgb, #ffb4a9 12%, var(--surface));
  }
  .tokens-page button.tokens-primary { box-shadow: none; }
}

/* ---------- Una sola línea por botón en pantallas anchas (en móvil pueden envolver para no desbordar) ---------- */
@media (min-width: 561px) {
  .tokens-page button { white-space: nowrap; }
}

/* ---------- Pantallas estrechas ---------- */
@media (max-width: 900px) {
  .tokens-workspace { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .tokens-fields { grid-template-columns: 1fr; gap: 1rem; }
  .tokens-field:nth-child(n + 5) { padding-top: 0; border-top: 0; }
  .tokens-field:nth-child(5) { padding-top: 1.5rem; border-top: 1px solid var(--line); }
  .tokens-actions > .tokens-primary { flex: 1 1 100%; }
  .tokens-actions > button:not(.tokens-primary) { flex: 1 1 0; }
}

/* ---------- Accesibilidad ---------- */
@media (prefers-reduced-motion: reduce) {
  .tokens-page input,
  .tokens-page button,
  #result-values { transition: none; }
  .tokens-page button:not(:disabled):active { transform: none; }
}
@media (forced-colors: active) {
  .tokens-panel, .tokens-summary { border: 1px solid CanvasText; }
  .tokens-page input[aria-invalid="true"] { outline: 2px solid Mark; }
}