/* ============================================================
   ux-phase3.css - Estilos Fase 3: Dark Mode transitions,
   Breadcrumbs, Form Validator, Command Palette, Scroll-top,
   Loading bar, Page transitions, Keyboard help
   ============================================================ */

/* ═══════ DARK MODE TRANSITION ═══════ */
.theme-transition,
.theme-transition *,
.theme-transition *::before,
.theme-transition *::after {
  transition: background-color .35s ease,
              color .35s ease,
              border-color .35s ease,
              box-shadow .35s ease !important;
}

/* Toggle de tema en navbar */
.theme-toggle {
  background: none; border: none; cursor: pointer;
  color: var(--brand-text-muted); font-size: 1rem;
  padding: 6px; border-radius: 8px; display: flex;
  align-items: center; justify-content: center;
  width: 36px; height: 36px;
  transition: all .15s;
}
.theme-toggle:hover { background: var(--brand-border); color: var(--brand-text); }
[data-theme="dark"] .theme-toggle:hover { background: rgba(255,255,255,.1); }

/* Dark mode overrides extras */
[data-theme="dark"] .skeleton { background: #2d3740; }
[data-theme="dark"] .btn-demo { background: #1a2028; border-color: #2d3740; }
[data-theme="dark"] .btn-demo:hover { border-color: var(--brand-accent); background: rgba(147,193,31,.08); }
[data-theme="dark"] .btn-outline { border-color: #2d3740; color: #e4e8ec; }
[data-theme="dark"] .btn-outline:hover { border-color: var(--brand-accent); color: var(--brand-accent); }
[data-theme="dark"] .mhub__hero { border-color: #2d3740; }
[data-theme="dark"] .mhub__card { background: #1a2028; border-color: #2d3740; }
[data-theme="dark"] .mhub__card:hover { background: #1f2830; border-color: var(--brand-accent); }
[data-theme="dark"] .com-kpi { background: #1a2028; border-color: #2d3740; }
[data-theme="dark"] .badge { opacity: .9; }
[data-theme="dark"] .com-searchbox input,
[data-theme="dark"] .com-search-input { background: #0f1419; border-color: #2d3740; color: #e4e8ec; }
[data-theme="dark"] .com-search-input::placeholder { color: #6b7a88; }
[data-theme="dark"] .ped-tab { color: #8899a6; }
[data-theme="dark"] .ped-tab.active,
[data-theme="dark"] .ped-tab--active { color: var(--brand-accent); }
[data-theme="dark"] .mobile-toggle { color: #e4e8ec; }
[data-theme="dark"] .scroll-top-btn { background: #1a2028; border-color: #2d3740; color: #e4e8ec; }

/* Dark: Filterbar & Action buttons */
[data-theme="dark"] .com-filterbar { border-color: #2d3740; }
[data-theme="dark"] .com-action-btn { color: #e4e8ec; }
[data-theme="dark"] .com-action-btn--primary { background: var(--brand-accent); color: #084734; }
[data-theme="dark"] .com-empty { color: #6b7a88; }

/* Dark: Config module modals */
[data-theme="dark"] .cfg-modal-overlay { background: rgba(0,0,0,.7); }
[data-theme="dark"] .cfg-modal { background: #1a2028; border-color: #2d3740; }
[data-theme="dark"] .cfg-modal__head { border-color: #2d3740; color: #e4e8ec; }
[data-theme="dark"] .cfg-modal__foot { border-color: #2d3740; }
[data-theme="dark"] .cfg-role-chip { opacity: .9; }
[data-theme="dark"] .cfg-btn-icon { color: #8899a6; }
[data-theme="dark"] .cfg-btn-icon:hover { color: var(--brand-accent); }
[data-theme="dark"] .cfg-btn-icon--danger:hover { color: var(--brand-error); }

/* Dark: Pedidos / Compras shared */
[data-theme="dark"] .com-chip { opacity: .9; }
[data-theme="dark"] .com-badge { opacity: .9; }
[data-theme="dark"] .com-tbl-wrap { border-color: #2d3740; }
[data-theme="dark"] .ped-form-grid .panel { background: #1a2028; border-color: #2d3740; }
[data-theme="dark"] .ped-cli-card { background: #0f1419; border-color: #2d3740; }
[data-theme="dark"] .ped-prio-btn { background: #0f1419; border-color: #2d3740; color: #8899a6; }
[data-theme="dark"] .ped-prio-btn--active { border-color: var(--brand-accent); color: var(--brand-accent); }
[data-theme="dark"] .ped-summary { background: #1a2028; border-color: #2d3740; }
[data-theme="dark"] .com-dropdown { background: #1a2028; border-color: #2d3740; }
[data-theme="dark"] .com-dropdown-item:hover { background: #0f1419; }

/* Dark: Devoluciones / Recepciones */
[data-theme="dark"] .dev-timeline-item { border-color: #2d3740; }
[data-theme="dark"] .dev-detalle-panel { background: #1a2028; border-color: #2d3740; }

/* Dark: Toast overrides para mejor legibilidad */
[data-theme="dark"] #toast-container > div {
  box-shadow: 0 4px 16px rgba(0,0,0,.4) !important;
}

/* Dark: Logistica cards */
[data-theme="dark"] .log-card { background: #1a2028; border-color: #2d3740; }
[data-theme="dark"] .log-card:hover { border-color: var(--brand-accent); }
[data-theme="dark"] .log-timeline { border-color: #2d3740; }
[data-theme="dark"] .log-timeline-item { background: #1a2028; border-color: #2d3740; }

/* Dark: PrintEngine overlays */
[data-theme="dark"] .pe-modal { background: #1a2028; color: #e4e8ec; }
[data-theme="dark"] .pe-header { border-color: #2d3740; }

/* Dark: Toma fisica */
[data-theme="dark"] .toma-section { background: #1a2028; border-color: #2d3740; }
[data-theme="dark"] .toma-item { border-color: #2d3740; }

/* Dark: Cartera */
[data-theme="dark"] .car-ficha { background: #1a2028; border-color: #2d3740; }
[data-theme="dark"] .car-timeline-item { border-color: #2d3740; }

/* Dark: Bottom nav (bodega) */
[data-theme="dark"] .bottom-nav { background: #1a2028; border-color: #2d3740; }
[data-theme="dark"] .bottom-nav-item { color: #6b7a88; }
[data-theme="dark"] .bottom-nav-item.active { color: var(--brand-accent); }

/* ═══════ BREADCRUMBS ═══════ */
.breadcrumb {
  padding: 0 0 12px 0;
}
.breadcrumb__list {
  display: flex; align-items: center; gap: 0;
  list-style: none; flex-wrap: wrap;
  font-size: .78rem;
}
.breadcrumb__item {
  display: inline-flex; align-items: center;
}
.breadcrumb__link {
  color: var(--brand-text-muted); cursor: pointer;
  text-decoration: none; transition: color .15s;
  padding: 2px 0;
}
.breadcrumb__link:hover { color: var(--brand-accent); }
.breadcrumb__sep {
  font-size: .55rem; color: var(--brand-text-muted);
  margin: 0 6px; opacity: .5;
}
.breadcrumb__item--active span {
  color: var(--brand-text); font-weight: 600;
}

/* ═══════ FORM VALIDATOR ═══════ */
.fv-error {
  border-color: var(--brand-error) !important;
  box-shadow: 0 0 0 2px rgba(220,38,38,.12) !important;
}
.fv-valid {
  border-color: var(--brand-success) !important;
  box-shadow: 0 0 0 2px rgba(22,163,74,.1) !important;
}
.fv-msg {
  font-size: .75rem; color: var(--brand-error);
  margin-top: 4px; display: flex;
  align-items: center; gap: 4px;
  animation: fv-slide .2s ease;
}
.fv-msg::before {
  content: '\f06a'; font-family: 'Font Awesome 6 Free';
  font-weight: 900; font-size: .7rem;
}
@keyframes fv-slide {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ═══════ COMMAND PALETTE (Ctrl+K) ═══════ */
.cmd-overlay {
  position: fixed; inset: 0; z-index: 10001;
  background: rgba(0,0,0,.5); backdrop-filter: blur(4px);
  display: flex; align-items: flex-start; justify-content: center;
  padding-top: min(20vh, 140px);
  opacity: 0; transition: opacity .15s ease;
  pointer-events: none;
}
.cmd-overlay--open { opacity: 1; pointer-events: auto; }
.cmd-box {
  background: var(--brand-surface); border-radius: 14px;
  width: 90%; max-width: 540px;
  box-shadow: 0 24px 80px rgba(0,0,0,.3);
  border: 1px solid var(--brand-border);
  overflow: hidden;
  transform: scale(.96) translateY(-8px);
  transition: transform .2s ease;
}
.cmd-overlay--open .cmd-box { transform: scale(1) translateY(0); }
.cmd-header {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 16px; border-bottom: 1px solid var(--brand-border);
}
.cmd-icon { color: var(--brand-text-muted); font-size: .9rem; }
.cmd-input {
  flex: 1; border: none; background: none; outline: none;
  font-size: .95rem; font-family: var(--font-family);
  color: var(--brand-text);
}
.cmd-input::placeholder { color: var(--brand-text-muted); }
.cmd-esc {
  font-size: .65rem; padding: 2px 6px; border-radius: 4px;
  background: var(--brand-border); color: var(--brand-text-muted);
  font-family: var(--font-family);
}
.cmd-results {
  max-height: 340px; overflow-y: auto;
  padding: 6px;
}
.cmd-result {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 8px; cursor: pointer;
  text-decoration: none; color: var(--brand-text);
  transition: background .1s;
}
.cmd-result:hover, .cmd-result--active {
  background: var(--brand-bg);
}
.cmd-result--active {
  background: rgba(147,193,31,.12);
}
.cmd-result-icon {
  width: 18px; text-align: center;
  color: var(--brand-text-muted); font-size: .85rem;
}
.cmd-result-label { flex: 1; font-size: .88rem; }
.cmd-result-type {
  font-size: .65rem; color: var(--brand-text-muted);
  text-transform: uppercase; letter-spacing: .3px;
}
.cmd-empty {
  padding: 32px 16px; text-align: center;
  color: var(--brand-text-muted); font-size: .88rem;
}
.cmd-footer {
  display: flex; gap: 16px; padding: 8px 16px;
  border-top: 1px solid var(--brand-border);
  font-size: .7rem; color: var(--brand-text-muted);
}
.cmd-footer kbd {
  font-size: .6rem; padding: 1px 4px; border-radius: 3px;
  background: var(--brand-border); font-family: var(--font-family);
  margin-right: 2px;
}

/* ═══════ SCROLL TO TOP ═══════ */
.scroll-top-btn {
  position: fixed; bottom: 24px; right: 24px; z-index: 100;
  width: 42px; height: 42px; border-radius: 50%;
  background: var(--brand-surface); color: var(--brand-text);
  border: 1px solid var(--brand-border);
  box-shadow: 0 4px 16px rgba(0,0,0,.12);
  cursor: pointer; display: flex;
  align-items: center; justify-content: center;
  font-size: .9rem;
  opacity: 0; transform: translateY(16px);
  pointer-events: none;
  transition: all .25s ease;
}
.scroll-top-btn--visible {
  opacity: 1; transform: translateY(0);
  pointer-events: auto;
}
.scroll-top-btn:hover {
  background: var(--brand-accent);
  color: var(--brand-primary);
  border-color: var(--brand-accent);
}

/* Ajustar si hay bottom-nav en bodega */
.bodega-mode .scroll-top-btn { bottom: 80px; }

/* ═══════ LOADING BAR ═══════ */
.loading-bar {
  position: fixed; top: 0; left: 0; right: 0;
  height: 3px; z-index: 10002;
  pointer-events: none; opacity: 0;
  transition: opacity .2s;
}
.loading-bar--active { opacity: 1; }
.loading-bar__fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--brand-accent), var(--brand-highlight));
  border-radius: 0 2px 2px 0;
  box-shadow: 0 0 8px rgba(147,193,31,.4);
}

/* ═══════ PAGE TRANSITION ═══════ */
.page-enter {
  animation: page-fade-in .25s ease;
}
@keyframes page-fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ═══════ KEYBOARD HELP ═══════ */
.kb-help-grid {
  display: flex; flex-direction: column; gap: 6px;
  max-height: 320px; overflow-y: auto;
}
.kb-help-row {
  display: flex; align-items: center; gap: 12px;
  padding: 6px 0;
}
.kb-key {
  min-width: 80px; padding: 3px 8px; border-radius: 5px;
  background: var(--brand-bg); border: 1px solid var(--brand-border);
  font-size: .75rem; font-family: var(--font-family);
  font-weight: 600; text-align: center;
  color: var(--brand-text);
}
.kb-desc {
  font-size: .82rem; color: var(--brand-text-muted);
}

/* ═══════ KEYBOARD NAVIGATION (a11y) ═══════ */
.keyboard-nav *:focus-visible {
  outline: 2px solid var(--brand-accent);
  outline-offset: 2px;
  border-radius: 4px;
}
.keyboard-nav .nav-item:focus-visible,
.keyboard-nav .module-tab:focus-visible {
  outline-offset: -2px;
}

/* ═══════ MOBILE ADJUSTMENTS ═══════ */
@media (max-width: 768px) {
  .cmd-box { width: 95%; max-width: none; margin: 0 8px; }
  .cmd-footer { display: none; }
  .breadcrumb__list { font-size: .72rem; }
  .scroll-top-btn { width: 38px; height: 38px; bottom: 16px; right: 16px; }
  .kb-help-grid { max-height: 240px; }
}