/* ============================================================
   TECNID — Panel de administración
   Paleta: grafito + naranja de seguridad (guiño a la ferretería
   industrial), datos tabulares en IBM Plex Mono para que cantidades
   y SKUs se lean como lo que son — números de inventario, no texto.
   ============================================================ */

:root {
  --grafito-950: #14181c;
  --grafito-900: #1b2026;
  --grafito-800: #262c33;
  --grafito-700: #363e46;
  --grafito-400: #8b939c;
  --hueso-100: #f6f5f2;
  --hueso-50: #fbfaf8;
  --borde: #e4e1da;

  --naranja: #ff5b1f;
  --naranja-oscuro: #d94714;
  --verde: #2e9e5b;
  --verde-bg: #e8f5ec;
  --amarillo: #d99a1a;
  --amarillo-bg: #fbf1dc;
  --rojo: #d64545;
  --rojo-bg: #fbeaea;

  --font-display: "Space Grotesk", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--hueso-100);
  color: var(--grafito-950);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

/* ---------- Login ---------- */

.login-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background:
    linear-gradient(180deg, var(--grafito-950) 0%, var(--grafito-900) 100%);
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--hueso-50);
  border-radius: 4px;
  padding: 40px 32px 32px;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.5);
  border-top: 4px solid var(--naranja);
}

.login-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.02em;
  margin: 0 0 2px;
}

.login-brand span { color: var(--naranja); }

.login-sub {
  font-size: 13px;
  color: var(--grafito-400);
  margin: 0 0 28px;
}

.field {
  margin-bottom: 16px;
}

.field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--grafito-700);
  margin-bottom: 6px;
}

.field input {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--borde);
  border-radius: 3px;
  font-family: var(--font-body);
  font-size: 14px;
  background: #fff;
}

.field input:focus {
  outline: none;
  border-color: var(--naranja);
  box-shadow: 0 0 0 3px rgba(255, 91, 31, 0.15);
}

.btn-primary {
  width: 100%;
  padding: 12px;
  background: var(--grafito-950);
  color: #fff;
  border: none;
  border-radius: 3px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.15s ease;
  margin-top: 6px;
}

.btn-primary:hover { background: var(--naranja-oscuro); }
.btn-primary:disabled { opacity: 0.6; cursor: default; }

.login-error {
  min-height: 18px;
  font-size: 13px;
  color: var(--rojo);
  margin: 0 0 12px;
}

/* ---------- Layout del panel ---------- */

.panel-shell {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 100vh;
}

.panel-sidebar {
  background: var(--grafito-950);
  color: var(--hueso-100);
  padding: 24px 0;
  display: flex;
  flex-direction: column;
}

.sidebar-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  padding: 0 24px 24px;
  border-bottom: 1px solid var(--grafito-800);
  margin-bottom: 12px;
}

.sidebar-brand span { color: var(--naranja); }

.sidebar-nav {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 24px;
  font-size: 14px;
  color: var(--grafito-400);
  text-decoration: none;
  border-left: 3px solid transparent;
}

.sidebar-link.active {
  color: #fff;
  background: var(--grafito-900);
  border-left-color: var(--naranja);
}

.sidebar-footer {
  padding: 16px 24px 0;
  border-top: 1px solid var(--grafito-800);
  margin-top: 12px;
}

.sidebar-user {
  font-size: 13px;
  color: var(--hueso-100);
  margin-bottom: 10px;
}

.sidebar-user small {
  display: block;
  color: var(--grafito-400);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-top: 2px;
}

.btn-logout {
  width: 100%;
  background: transparent;
  border: 1px solid var(--grafito-700);
  color: var(--hueso-100);
  padding: 8px;
  border-radius: 3px;
  font-size: 13px;
  cursor: pointer;
}

.btn-logout:hover { border-color: var(--naranja); color: var(--naranja); }

.panel-main {
  padding: 32px 36px 60px;
}

.panel-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 22px;
  flex-wrap: wrap;
  gap: 12px;
}

.panel-header h1 {
  font-family: var(--font-display);
  font-size: 24px;
  margin: 0;
}

.panel-toolbar {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.search-input {
  flex: 1 1 220px;
  min-width: 0;
  padding: 10px 14px;
  border: 1px solid var(--borde);
  border-radius: 3px;
  font-family: var(--font-body);
  font-size: 14px;
  background: #fff;
}

.panel-toolbar .btn-primary {
  width: auto;
  flex: 0 0 auto;
  margin-top: 0;
  white-space: nowrap;
}

.search-input:focus { outline: none; border-color: var(--naranja); }

/* ---------- Tabla de stock ---------- */

.stock-table-wrap {
  background: #fff;
  border: 1px solid var(--borde);
  border-radius: 4px;
  overflow: hidden;
}

table.stock-table {
  width: 100%;
  border-collapse: collapse;
}

.stock-table thead th {
  text-align: left;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--grafito-400);
  padding: 12px 16px;
  border-bottom: 1px solid var(--borde);
  background: var(--hueso-50);
}

.stock-table tbody td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--borde);
  font-size: 14px;
  vertical-align: middle;
}

.stock-table tbody tr:last-child td { border-bottom: none; }
.stock-table tbody tr:hover { background: var(--hueso-50); }

.celda-sku {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--grafito-700);
}

.celda-numero {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.badge::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
}

.badge-normal { background: var(--verde-bg); color: var(--verde); }
.badge-normal::before { background: var(--verde); }

.badge-bajo { background: var(--amarillo-bg); color: var(--amarillo); }
.badge-bajo::before { background: var(--amarillo); }

.badge-agotado { background: var(--rojo-bg); color: var(--rojo); }
.badge-agotado::before { background: var(--rojo); }

.btn-ajustar {
  background: none;
  border: 1px solid var(--borde);
  padding: 6px 12px;
  border-radius: 3px;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  color: var(--grafito-950);
}

.btn-ajustar:hover { border-color: var(--naranja); color: var(--naranja); }

.estado-vacio, .estado-carga {
  padding: 60px 20px;
  text-align: center;
  color: var(--grafito-400);
  font-size: 14px;
}

/* ---------- Modal de movimiento ---------- */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(20, 24, 28, 0.55);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 50;
  padding: 20px;
  overflow-y: auto;
}

.modal-overlay.abierto { display: flex; }

.modal-card {
  background: #fff;
  width: 100%;
  max-width: 380px;
  max-height: calc(100dvh - 40px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: 4px;
  padding: 24px;
  border-top: 4px solid var(--naranja);
  margin: auto;
}

.campo-fila {
  display: flex;
  gap: 8px;
}

.campo-fila select {
  flex: 1;
  min-width: 0;
}

.modal-card h2 {
  font-family: var(--font-display);
  font-size: 18px;
  margin: 0 0 4px;
}

.modal-card .modal-sub {
  font-size: 13px;
  color: var(--grafito-400);
  margin: 0 0 18px;
  font-family: var(--font-mono);
}

.field-row {
  display: flex;
  gap: 10px;
}

.field select,
.field textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--borde);
  border-radius: 3px;
  font-family: var(--font-body);
  font-size: 14px;
  background: #fff;
}

.field textarea {
  resize: vertical;
  min-height: 64px;
}

.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--naranja);
  box-shadow: 0 0 0 3px rgba(255, 91, 31, 0.15);
}

/* Fila que contiene solo un checkbox: no debe heredar el estilo
   de label en mayúsculas usado para los labels de campo normales. */
.field label:has(input[type="checkbox"]) {
  display: flex;
  align-items: center;
  gap: 8px;
  text-transform: none;
  letter-spacing: normal;
  font-size: 14px;
  font-weight: 500;
  color: var(--grafito-950);
  margin-bottom: 0;
  cursor: pointer;
}

.field input[type="checkbox"] {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  accent-color: var(--naranja);
}

.modal-actions {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.btn-secondary {
  flex: 1;
  padding: 11px;
  background: #fff;
  border: 1px solid var(--borde);
  border-radius: 3px;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
}

.modal-actions .btn-primary { flex: 1; margin-top: 0; }

.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--grafito-950);
  color: #fff;
  padding: 12px 18px;
  border-radius: 3px;
  font-size: 13px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  pointer-events: none;
  z-index: 60;
}

.toast.visible { opacity: 1; transform: translateY(0); }
.toast.error { background: var(--rojo); }

/* ---------- Barra de superadmin (selector de cuenta) ---------- */

.superadmin-bar {
  display: none;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  background: var(--naranja);
  color: #fff;
  padding: 10px 20px;
  font-size: 13px;
  font-weight: 600;
  position: sticky;
  top: 0;
  z-index: 40;
}

.superadmin-bar.visible { display: flex; }

.superadmin-bar .etiqueta {
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 11px;
  background: rgba(0, 0, 0, 0.18);
  padding: 3px 8px;
  border-radius: 3px;
}

.superadmin-bar select {
  padding: 6px 10px;
  border-radius: 3px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  background: rgba(0, 0, 0, 0.18);
  color: #fff;
  font-weight: 600;
  font-family: var(--font-body);
  font-size: 13px;
}

.superadmin-bar select:focus { outline: 2px solid rgba(255, 255, 255, 0.7); }
.superadmin-bar select option { color: var(--grafito-950); }

@media (max-width: 900px) {
  .panel-main { padding: 28px 24px 48px; }
}

@media (max-width: 720px) {
  .panel-shell { grid-template-columns: 1fr; }

  .panel-sidebar {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    overflow-x: auto;
    padding: 12px 16px;
  }
  .sidebar-brand { border: none; padding: 0 16px 0 0; margin: 0; flex: 0 0 auto; }
  .sidebar-nav { flex-direction: row; flex: 0 0 auto; }
  .sidebar-link {
    padding: 8px 12px;
    border-left: none;
    border-bottom: 3px solid transparent;
    white-space: nowrap;
  }
  .sidebar-link.active { border-left-color: transparent; border-bottom-color: var(--naranja); }

  /* En vez de ocultar el logout (dejaba al usuario sin forma de
     cerrar sesión en mobile), lo comprimimos a un botón chico
     al final de la barra y ocultamos solo los datos de usuario. */
  .sidebar-footer {
    padding: 0;
    border-top: none;
    margin-top: 0;
    margin-left: 12px;
    flex: 0 0 auto;
  }
  .sidebar-user { display: none; }
  .btn-logout { width: auto; padding: 8px 12px; white-space: nowrap; }

  .panel-main { padding: 20px 16px 48px; }

  .panel-header { align-items: flex-start; }
  .panel-header h1 { font-size: 20px; }

  .panel-toolbar { flex-direction: column; align-items: stretch; }
  .panel-toolbar .search-input,
  .panel-toolbar select.search-input,
  .panel-toolbar .btn-primary { width: 100%; }

  .stock-table-wrap { overflow-x: auto; }
  .stock-table { min-width: 620px; }

  .modal-card { padding: 20px; max-width: 100%; }
  .modal-actions { flex-direction: column-reverse; }
}

@media (max-width: 480px) {
  .stock-table thead th,
  .stock-table tbody td { padding: 10px 12px; font-size: 13px; }
  .celda-sku, .celda-numero { font-size: 12px; }
  .modal-card { padding: 16px; }
  .modal-overlay { padding: 12px; }

  /* Los inputs con menos de 16px disparan el auto-zoom de iOS al
     enfocarlos, lo cual se siente como que "el panel se rompe". */
  .field input,
  .field select,
  .field textarea,
  .search-input { font-size: 16px; }
}