@import url("tokens.css");

/* ---------- Reset ligero ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { font-size: 18px; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-width: 360px;
  font-family: var(--tla-font);
  font-size: var(--tla-text-md);
  line-height: var(--tla-leading);
  color: var(--tla-ink);
  background: var(--tla-bg);
}

h1, h2, h3 { line-height: 1.2; margin: 0 0 var(--tla-space-3); }
h1 { font-size: var(--tla-text-2xl); }
h2 { font-size: var(--tla-text-xl); }
h3 { font-size: var(--tla-text-lg); }
p { margin: 0 0 var(--tla-space-3); }
img, svg { max-width: 100%; }
a { color: var(--tla-primary); text-underline-offset: 0.2em; }
a:hover { color: var(--tla-primary-hover); }

:focus-visible {
  outline: 3px solid var(--tla-focus);
  outline-offset: 2px;
  border-radius: var(--tla-radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- Utilidades ---------- */
.tla-visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.tla-muted { color: var(--tla-ink-muted); }
.tla-stack > * + * { margin-top: var(--tla-space-4); }
.tla-row { display: flex; flex-wrap: wrap; gap: var(--tla-space-3); align-items: center; }
.tla-row--between { justify-content: space-between; }
.tla-center { text-align: center; }
.tla-grid { display: grid; gap: var(--tla-space-4); grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr)); }

/* ---------- Botones ---------- */
.tla-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--tla-space-2);
  min-height: var(--tla-touch); min-width: var(--tla-touch);
  padding: var(--tla-space-2) var(--tla-space-5);
  font: inherit; font-weight: 700; text-decoration: none; cursor: pointer;
  color: var(--tla-on-primary); background: var(--tla-primary);
  border: 2px solid var(--tla-primary); border-radius: var(--tla-radius-pill);
  box-shadow: var(--tla-shadow-sm);
  transition: background var(--tla-transition), transform var(--tla-transition);
}
.tla-btn:hover { background: var(--tla-primary-hover); border-color: var(--tla-primary-hover); color: var(--tla-on-primary); }
.tla-btn:active { transform: translateY(1px); }
.tla-btn:disabled, .tla-btn[aria-disabled="true"] { opacity: 0.55; cursor: not-allowed; box-shadow: none; transform: none; }
.tla-btn--secondary { color: var(--tla-primary); background: var(--tla-surface); }
.tla-btn--secondary:hover { color: var(--tla-primary-hover); background: var(--tla-primary-soft); }
.tla-btn--ghost { color: var(--tla-primary); background: transparent; border-color: transparent; box-shadow: none; }
.tla-btn--ghost:hover { color: var(--tla-primary-hover); background: var(--tla-primary-soft); border-color: transparent; }
.tla-btn--big { font-size: var(--tla-text-lg); padding: var(--tla-space-3) var(--tla-space-6); }

/* ---------- Tarjetas ---------- */
.tla-card {
  background: var(--tla-surface); border: 1px solid var(--tla-border);
  border-radius: var(--tla-radius-lg); box-shadow: var(--tla-shadow-sm);
  padding: var(--tla-space-5);
}
.tla-card--link { display: block; color: inherit; text-decoration: none; transition: box-shadow var(--tla-transition), transform var(--tla-transition); }
.tla-card--link:hover { color: inherit; box-shadow: var(--tla-shadow); transform: translateY(-2px); }
.tla-card__title { font-size: var(--tla-text-lg); margin-bottom: var(--tla-space-2); }
.tla-badge {
  display: inline-block; padding: 0 var(--tla-space-3); border-radius: var(--tla-radius-pill);
  font-size: var(--tla-text-sm); font-weight: 700; color: var(--tla-primary); background: var(--tla-primary-soft);
}

/* ---------- Formularios ---------- */
.tla-field { display: flex; flex-direction: column; gap: var(--tla-space-1); }
.tla-label { font-weight: 700; }
.tla-input {
  min-height: var(--tla-touch); padding: var(--tla-space-2) var(--tla-space-3);
  font: inherit; color: var(--tla-ink); background: var(--tla-surface);
  border: 2px solid var(--tla-border); border-radius: var(--tla-radius-sm);
}
.tla-input:focus-visible { border-color: var(--tla-focus); }

/* ---------- Cabecera y estructura de página ---------- */
.app-header {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--tla-space-3);
  padding: var(--tla-space-3) var(--tla-space-4);
  color: var(--tla-on-primary); background: var(--tla-primary);
}
.app-header a { color: var(--tla-on-primary); text-decoration: none; font-weight: 800; font-size: var(--tla-text-lg); }
.app-header__learner { font-weight: 600; }
.app-main { max-width: var(--tla-content-width); margin: 0 auto; padding: var(--tla-space-4); }
.tla-page-head { margin-bottom: var(--tla-space-5); }
.tla-waiting { padding: var(--tla-space-6); text-align: center; color: var(--tla-ink-muted); }

/* ---------- Aviso de reconexión ---------- */
.tla-reconnect {
  display: none; position: fixed; inset: auto 0 0 0; z-index: 100;
  padding: var(--tla-space-4); text-align: center;
  color: var(--tla-hint-ink); background: var(--tla-hint-bg); border-top: 4px solid var(--tla-hint-line);
}
.tla-reconnect.components-reconnect-show,
.tla-reconnect.components-reconnect-failed,
.tla-reconnect.components-reconnect-rejected,
.tla-reconnect.components-reconnect-resume-failed,
.tla-reconnect.components-reconnect-paused,
.tla-reconnect.components-reconnect-retrying { display: block; }
.tla-reconnect__msg { display: none; margin: 0; }
.tla-reconnect.components-reconnect-show .tla-reconnect__msg--lost,
.tla-reconnect.components-reconnect-retrying .tla-reconnect__msg--lost,
.tla-reconnect.components-reconnect-paused .tla-reconnect__msg--lost { display: block; }
.tla-reconnect.components-reconnect-failed .tla-reconnect__msg--failed,
.tla-reconnect.components-reconnect-resume-failed .tla-reconnect__msg--failed,
.tla-reconnect.components-reconnect-rejected .tla-reconnect__msg--failed { display: block; }
.tla-reconnect__msg--failed .tla-btn { display: block; margin: var(--tla-space-3) auto 0; }

/* ---------- Catálogo ---------- */
.tla-group { margin-bottom: var(--tla-space-6); }
.tla-group__title { color: var(--tla-ink-muted); font-size: var(--tla-text-lg); }

/* ---------- Camino de etapas ---------- */
.tla-path { list-style: none; margin: 0; padding: 0; }
.tla-stage { position: relative; margin-left: var(--tla-space-5); padding-left: var(--tla-space-5); padding-bottom: var(--tla-space-5); border-left: 4px solid var(--tla-border); }
.tla-stage:last-child { border-left-color: transparent; padding-bottom: 0; }
.tla-stage__marker {
  position: absolute; left: -1.5rem; top: 0; width: 2.75rem; height: 2.75rem;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; border-radius: 50%; color: var(--tla-ink); background: var(--tla-surface-alt); border: 3px solid var(--tla-border);
}
.tla-stage--open .tla-stage__marker { color: var(--tla-on-primary); background: var(--tla-primary); border-color: var(--tla-primary); }
.tla-stage--mastered .tla-stage__marker { color: var(--tla-success-ink); background: var(--tla-success-bg); border-color: var(--tla-success-line); }
.tla-stage--locked .tla-card { background: var(--tla-surface-alt); }
.tla-stage__state { font-weight: 700; }
.tla-stars { color: var(--tla-accent-ink); letter-spacing: 0.1em; }
.tla-types { list-style: none; margin: var(--tla-space-3) 0 0; padding: 0; display: grid; gap: var(--tla-space-2); }
.tla-types__item { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--tla-space-2); }

/* ---------- Marco del ejercicio ---------- */
.tla-frame__header {
  display: flex; flex-wrap: wrap; align-items: center; gap: var(--tla-space-3) var(--tla-space-5);
  margin-bottom: var(--tla-space-4);
}
.tla-frame__where { flex: 1 1 12rem; }
.tla-frame__stage { font-weight: 800; }
.tla-frame__level { color: var(--tla-ink-muted); }
.tla-frame__practice { color: var(--tla-hint-ink); background: var(--tla-hint-bg); border-radius: var(--tla-radius); padding: 0 var(--tla-space-2); font-weight: 700; }
.tla-frame__body { display: grid; gap: var(--tla-space-4); grid-template-columns: minmax(0, 1fr) 20rem; align-items: start; }
.tla-frame__screen { min-width: 0; }
@media (max-width: 52rem) {
  .tla-frame__body { grid-template-columns: minmax(0, 1fr); }
}

/* Racha */
.tla-streak { display: inline-flex; align-items: center; gap: var(--tla-space-2); }
.tla-streak__dots { display: inline-flex; gap: var(--tla-space-1); }
.tla-streak__dot { width: 1.1rem; height: 1.1rem; border-radius: 50%; border: 3px solid var(--tla-accent); background: transparent; }
.tla-streak__dot--on { background: var(--tla-accent); }
.tla-streak__text { font-size: var(--tla-text-sm); font-weight: 700; color: var(--tla-accent-ink); }

/* Aviso de acierto, error o pista */
.tla-feedback {
  display: flex; gap: var(--tla-space-3); align-items: flex-start;
  padding: var(--tla-space-3) var(--tla-space-4); border-radius: var(--tla-radius);
  border: 2px solid var(--tla-hint-line); color: var(--tla-hint-ink); background: var(--tla-hint-bg);
}
.tla-feedback--success { color: var(--tla-success-ink); background: var(--tla-success-bg); border-color: var(--tla-success-line); }
.tla-feedback--error { color: var(--tla-error-ink); background: var(--tla-error-bg); border-color: var(--tla-error-line); }
.tla-feedback__icon {
  flex: none; width: 2rem; height: 2rem; display: flex; align-items: center; justify-content: center;
  font-weight: 800; color: #fff; border-radius: 50%; background: var(--tla-hint-line);
}
.tla-feedback--success .tla-feedback__icon { background: var(--tla-success-line); }
.tla-feedback--error .tla-feedback__icon { background: var(--tla-error-line); }
.tla-feedback__label { display: block; font-weight: 800; }
.tla-feedback__body > :last-child { margin-bottom: 0; }
.tla-feedback-zone { margin-top: var(--tla-space-4); display: grid; gap: var(--tla-space-3); }

/* Coach */
.tla-coach { padding: var(--tla-space-4); }
.tla-coach__head { display: flex; align-items: center; gap: var(--tla-space-3); margin-bottom: var(--tla-space-3); }
.tla-coach__avatar { flex: none; width: 3rem; height: 3rem; }
.tla-coach__name { font-weight: 800; font-size: var(--tla-text-lg); }
.tla-coach__ai { margin-top: var(--tla-space-3); padding: var(--tla-space-3); border-radius: var(--tla-radius); background: var(--tla-surface-alt); }
.tla-coach__actions { display: grid; gap: var(--tla-space-2); margin-top: var(--tla-space-3); }
.tla-coach__wait { color: var(--tla-ink-muted); font-size: var(--tla-text-sm); }
.tla-coach__form { display: grid; gap: var(--tla-space-2); margin-top: var(--tla-space-3); }

/* Teclado numérico */
.tla-pad { display: grid; gap: var(--tla-space-2); width: 100%; max-width: 20rem; margin: 0 auto; }
.tla-pad__display {
  min-height: 4rem; display: flex; align-items: center; justify-content: flex-end; padding: 0 var(--tla-space-4);
  font-family: var(--tla-font-mono); font-size: var(--tla-text-2xl); font-weight: 700;
  background: var(--tla-surface); border: 2px solid var(--tla-border); border-radius: var(--tla-radius);
}
.tla-pad__keys { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--tla-space-2); }
.tla-pad__key {
  min-height: 3.5rem; font: inherit; font-size: var(--tla-text-xl); font-weight: 800; cursor: pointer;
  color: var(--tla-ink); background: var(--tla-surface); border: 2px solid var(--tla-border); border-radius: var(--tla-radius);
  box-shadow: 0 2px 0 var(--tla-border);
}
.tla-pad__key:hover { background: var(--tla-primary-soft); }
.tla-pad__key:active { transform: translateY(2px); box-shadow: none; }
.tla-pad__key:disabled { opacity: 0.5; cursor: not-allowed; }
.tla-pad__key--ok { color: var(--tla-on-primary); background: var(--tla-primary); border-color: var(--tla-primary); box-shadow: 0 2px 0 var(--tla-primary-hover); }
.tla-pad__key--ok:hover { background: var(--tla-primary-hover); }

/* Chuleta lateral */
.tla-drawer-backdrop { position: fixed; inset: 0; z-index: 40; background: rgba(31, 36, 51, 0.45); }
.tla-drawer {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 50;
  width: min(var(--tla-drawer-width), 100vw); overflow-y: auto;
  padding: var(--tla-space-4); background: var(--tla-surface); box-shadow: var(--tla-shadow-lg);
  animation: tla-slide-in 180ms ease-out;
}
.tla-drawer__head { display: flex; align-items: center; justify-content: space-between; gap: var(--tla-space-3); margin-bottom: var(--tla-space-3); }
.tla-drawer__head h2 { margin: 0; }
@keyframes tla-slide-in { from { transform: translateX(2rem); opacity: 0; } to { transform: none; opacity: 1; } }

/* Chuleta (contenido y página completa) */
.tla-cheat h3 { margin-top: var(--tla-space-4); }
.tla-cheat section { padding: var(--tla-space-3) 0; border-top: 1px solid var(--tla-border); }

/* Mini app de ejemplo */
.tla-sum { display: grid; gap: var(--tla-space-4); justify-items: center; padding: var(--tla-space-5); }
.tla-sum__statement { margin: 0; font-size: var(--tla-text-big); font-weight: 800; }

/* ---------- Impresión (chuleta) ---------- */
@media print {
  body { background: #fff; font-size: 12pt; }
  .app-header, .tla-reconnect, .tla-noprint { display: none !important; }
  .app-main { max-width: none; padding: 0; }
  .tla-card { box-shadow: none; border: 1px solid #999; break-inside: avoid; }
  a { color: inherit; text-decoration: none; }
}

/* «No soy {nombre}» en la cabecera: sobre el color primario hereda el color de la cabecera. */
.app-header button.switch-open { color: var(--tla-on-primary); font-size: var(--tla-text-md); }