/* ============================================================
   ESTILOS GENERALES - Gestión de Requerimientos
   Inspirado en la identidad visual de Bitrix24
   ============================================================ */

:root {
  --b24-azul: #1b6bd6;
  --b24-azul-oscuro: #144d9e;
  --b24-azul-claro: #e8f1fc;
  --b24-fondo: #f3f4f6;
  --b24-borde: #e1e3e9;
  --b24-texto: #2c3e50;
  --b24-texto-secundario: #7c8694;
  --b24-verde: #4caf50;
  --b24-verde-oscuro: #3d8b40;
  --b24-amarillo: #ffc107;
  --b24-naranja: #fd7e14;
  --b24-rojo: #dc3545;
  --b24-morado: #6f42c1;
  --b24-cian: #17a2b8;
  --b24-gris: #a4a4a4;
  --sidebar-ancho: 240px;
  --topbar-alto: 56px;
}

* { box-sizing: border-box; }

body {
  background: var(--b24-fondo);
  color: var(--b24-texto);
  font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, Arial, sans-serif;
  font-size: 14px;
  margin: 0;
}

a { text-decoration: none; }

/* ---------- TOPBAR ---------- */
.b24-topbar {
  height: var(--topbar-alto);
  background: #fff;
  border-bottom: 1px solid var(--b24-borde);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
}

.b24-topbar .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 16px;
  color: var(--b24-azul-oscuro);
}

.b24-topbar .brand .logo-box {
  width: 32px; height: 32px;
  background: var(--b24-azul);
  border-radius: 7px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 15px;
}

.b24-topbar .usuario-box {
  display: flex;
  align-items: center;
  gap: 12px;
}

.b24-topbar .usuario-box .avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--b24-azul-claro);
  color: var(--b24-azul-oscuro);
  display: flex; align-items: center; justify-content: center;
  font-weight: 600;
  font-size: 13px;
}

.b24-topbar .rol-badge {
  font-size: 11px;
  background: var(--b24-azul-claro);
  color: var(--b24-azul-oscuro);
  padding: 2px 9px;
  border-radius: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .3px;
}

/* ---------- SIDEBAR ---------- */
.b24-sidebar {
  position: fixed;
  top: var(--topbar-alto);
  left: 0;
  bottom: 0;
  width: var(--sidebar-ancho);
  background: #fff;
  border-right: 1px solid var(--b24-borde);
  padding: 16px 10px;
  overflow-y: auto;
}

.b24-sidebar .nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--b24-texto);
  font-size: 13.5px;
  font-weight: 500;
  margin-bottom: 2px;
  transition: background .15s, color .15s;
}

.b24-sidebar .nav-link i { width: 18px; text-align: center; color: var(--b24-texto-secundario); }

.b24-sidebar .nav-link:hover {
  background: var(--b24-fondo);
}

.b24-sidebar .nav-link.active {
  background: var(--b24-azul-claro);
  color: var(--b24-azul-oscuro);
}

.b24-sidebar .nav-link.active i { color: var(--b24-azul-oscuro); }

.b24-sidebar .nav-section-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--b24-texto-secundario);
  padding: 14px 12px 6px;
  font-weight: 600;
}

/* ---------- CONTENIDO PRINCIPAL ---------- */
.b24-main {
  margin-left: var(--sidebar-ancho);
  margin-top: var(--topbar-alto);
  padding: 24px 28px;
  min-height: calc(100vh - var(--topbar-alto));
}

.b24-page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.b24-page-header h1 {
  font-size: 20px;
  font-weight: 600;
  margin: 0;
  color: var(--b24-texto);
}

.b24-page-header .subtitulo {
  font-size: 13px;
  color: var(--b24-texto-secundario);
  margin-top: 2px;
}

/* ---------- BOTONES ---------- */
.btn-b24-verde {
  background: var(--b24-verde);
  border: none;
  color: #fff;
  font-weight: 600;
  font-size: 13.5px;
  padding: 9px 18px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: background .15s;
  box-shadow: 0 1px 2px rgba(0,0,0,.08);
}
.btn-b24-verde:hover { background: var(--b24-verde-oscuro); color: #fff; }

.btn-b24-azul {
  background: var(--b24-azul);
  border: none;
  color: #fff;
  font-weight: 600;
  font-size: 13.5px;
  padding: 9px 18px;
  border-radius: 8px;
}
.btn-b24-azul:hover { background: var(--b24-azul-oscuro); color: #fff; }

.btn-b24-outline {
  background: #fff;
  border: 1px solid var(--b24-borde);
  color: var(--b24-texto);
  font-weight: 500;
  font-size: 13.5px;
  padding: 8px 16px;
  border-radius: 8px;
}
.btn-b24-outline:hover { background: var(--b24-fondo); }

/* ---------- TARJETAS / TABLA ---------- */
.b24-card {
  background: #fff;
  border-radius: 10px;
  border: 1px solid var(--b24-borde);
  box-shadow: 0 1px 2px rgba(0,0,0,.03);
}

.b24-table {
  width: 100%;
  border-collapse: collapse;
}

.b24-table thead th {
  background: #fafbfc;
  color: var(--b24-texto-secundario);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .4px;
  font-weight: 600;
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--b24-borde);
}

.b24-table tbody td {
  padding: 13px 16px;
  border-bottom: 1px solid #f0f1f3;
  font-size: 13.5px;
  vertical-align: middle;
}

.b24-table tbody tr:hover { background: #fafbfd; cursor: pointer; }
.b24-table tbody tr:last-child td { border-bottom: none; }

.b24-codigo-pedido {
  font-weight: 600;
  color: var(--b24-azul);
}

/* ---------- BADGES DE ESTADO ---------- */
.estado-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
  color: #fff;
  white-space: nowrap;
}

.estado-badge .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: rgba(255,255,255,.85);
}

/* ---------- MODALES / PANEL DE GESTIÓN ---------- */
.modal-b24 .modal-content {
  border-radius: 12px;
  border: none;
}

.modal-b24 .modal-header {
  border-bottom: 1px solid var(--b24-borde);
  padding: 18px 24px;
}

.modal-b24 .modal-title {
  font-size: 16px;
  font-weight: 600;
}

.modal-b24 .modal-body {
  padding: 22px 24px;
}

.modal-b24 .modal-footer {
  border-top: 1px solid var(--b24-borde);
  padding: 14px 24px;
}

.form-label-b24 {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--b24-texto-secundario);
  text-transform: uppercase;
  letter-spacing: .3px;
  margin-bottom: 5px;
}

.form-control, .form-select {
  border: 1px solid var(--b24-borde);
  border-radius: 7px;
  font-size: 13.5px;
  padding: 8px 12px;
}

.form-control:focus, .form-select:focus {
  border-color: var(--b24-azul);
  box-shadow: 0 0 0 3px var(--b24-azul-claro);
}

/* ---------- TABLA DE ITEMS (dentro del detalle del pedido) ---------- */
.tabla-items th {
  font-size: 11px;
  text-transform: uppercase;
  color: var(--b24-texto-secundario);
  font-weight: 600;
  padding: 8px 10px;
  border-bottom: 1px solid var(--b24-borde);
}
.tabla-items td { padding: 6px 10px; vertical-align: middle; }

.tipo-articulo-badge {
  font-size: 10.5px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 5px;
}
.tipo-stock { background: #e8f7ed; color: var(--b24-verde-oscuro); }
.tipo-pedido { background: #fff4e5; color: var(--b24-naranja); }

/* ---------- TIMELINE DE HISTORIAL ---------- */
.timeline-b24 { list-style: none; padding: 0; margin: 0; }
.timeline-b24 li {
  position: relative;
  padding: 0 0 18px 26px;
  border-left: 2px solid var(--b24-borde);
  margin-left: 6px;
}
.timeline-b24 li:last-child { border-left-color: transparent; padding-bottom: 0; }
.timeline-b24 li::before {
  content: '';
  position: absolute;
  left: -7px; top: 2px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--b24-azul);
  border: 2px solid #fff;
  box-shadow: 0 0 0 2px var(--b24-azul);
}
.timeline-b24 .tl-usuario { font-weight: 600; font-size: 13px; }
.timeline-b24 .tl-fecha { font-size: 11.5px; color: var(--b24-texto-secundario); }
.timeline-b24 .tl-comentario { font-size: 13px; color: var(--b24-texto); margin-top: 3px; }

/* ---------- LOGIN ---------- */
.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1b6bd6 0%, #144d9e 100%);
}

.login-card {
  background: #fff;
  border-radius: 14px;
  padding: 40px 38px;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 20px 60px rgba(0,0,0,.25);
}

.login-card .logo-box {
  width: 52px; height: 52px;
  background: var(--b24-azul);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 22px;
  margin: 0 auto 16px;
}

/* ---------- UTILES ---------- */
.text-muted-b24 { color: var(--b24-texto-secundario); }
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--b24-texto-secundario);
}
.empty-state i { font-size: 42px; color: var(--b24-borde); margin-bottom: 14px; display: block; }

@media (max-width: 900px) {
  .b24-sidebar { display: none; }
  .b24-main { margin-left: 0; }
}