/* ==========================================================================
   FARMEX WEB ADMIN — Clinical Dark Slate / Emerald Modern Design System
   Compatible con Móvil (PWA/Responsive) y Pantallas de Escritorio
   ========================================================================== */

:root {
  --bg-body: #0b1120;
  --bg-sidebar: #0f172a;
  --bg-card: #1e293b;
  --bg-card-hover: #24344d;
  --bg-input: #0f172a;
  --border-color: #334155;
  --border-focus: #10b981;
  
  --emerald-500: #10b981;
  --emerald-600: #059669;
  --emerald-400: #34d399;
  --emerald-glow: rgba(16, 185, 129, 0.2);
  
  --sky-500: #0ea5e9;
  --amber-500: #f59e0b;
  --rose-500: #f43f5e;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.25);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
  
  --font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-body);
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* --------------------------------------------------------------------------
   LAYOUT PRINCIPAL: SIDEBAR + MAIN CONTENT
   -------------------------------------------------------------------------- */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  transition: transform 0.3s ease;
}

.sidebar-header {
  padding: 24px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border-color);
}

.brand-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--emerald-600), var(--emerald-400));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  box-shadow: 0 0 15px var(--emerald-glow);
}

.brand-info h1 {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: #fff;
}

.brand-info span {
  font-size: 11px;
  font-weight: 600;
  color: var(--emerald-400);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.sidebar-nav {
  padding: 20px 12px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
  transition: all 0.2s ease;
}

.nav-link:hover {
  background-color: rgba(255, 255, 255, 0.05);
  color: #fff;
}

.nav-link.active {
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--emerald-400);
  border-left: 3px solid var(--emerald-500);
}

.nav-link i {
  font-size: 18px;
  width: 20px;
  text-align: center;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border-color);
}

.btn-logout {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px;
  background: rgba(244, 63, 94, 0.1);
  color: var(--rose-500);
  border: 1px solid rgba(244, 63, 94, 0.2);
  border-radius: 8px;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-logout:hover {
  background: rgba(244, 63, 94, 0.2);
  color: #fff;
}

/* Main Content Area */
.main-wrapper {
  flex: 1;
  margin-left: 260px;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* Topbar */
.topbar {
  height: 64px;
  background-color: var(--bg-sidebar);
  border-bottom: 1px solid var(--border-color);
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 90;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-size: 22px;
  cursor: pointer;
}

.page-title {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.cloud-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  color: var(--emerald-400);
}

.cloud-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--emerald-500);
  box-shadow: 0 0 8px var(--emerald-400);
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
}

.user-avatar {
  width: 32px;
  height: 32px;
  background-color: var(--emerald-600);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
}

/* Page Content */
.content-body {
  padding: 28px;
  flex: 1;
}

/* --------------------------------------------------------------------------
   TARJETAS Y KPIS
   -------------------------------------------------------------------------- */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.kpi-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 18px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, border-color 0.2s;
}

.kpi-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.15);
}

.kpi-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.kpi-icon.emerald {
  background: rgba(16, 185, 129, 0.15);
  color: var(--emerald-400);
}

.kpi-icon.sky {
  background: rgba(14, 165, 233, 0.15);
  color: var(--sky-500);
}

.kpi-icon.amber {
  background: rgba(245, 158, 11, 0.15);
  color: var(--amber-500);
}

.kpi-icon.rose {
  background: rgba(244, 63, 94, 0.15);
  color: var(--rose-500);
}

.kpi-data h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.kpi-data .kpi-value {
  font-size: 24px;
  font-weight: 700;
  color: #fff;
}

.kpi-data .kpi-sub {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 2px;
}

/* --------------------------------------------------------------------------
   TABLAS Y PANELES
   -------------------------------------------------------------------------- */
.panel {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-bottom: 28px;
}

.panel-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.panel-header h3 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
}

.search-box {
  position: relative;
  min-width: 260px;
}

.search-box input {
  width: 100%;
  padding: 9px 14px 9px 36px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: #fff;
  font-size: 13px;
  outline: none;
  transition: border-color 0.2s;
}

.search-box input:focus {
  border-color: var(--border-focus);
}

.search-box i {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
  font-size: 14px;
}

.table-responsive {
  overflow-x: auto;
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13px;
}

table.data-table th {
  padding: 12px 18px;
  background-color: rgba(15, 23, 42, 0.6);
  color: var(--text-muted);
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

table.data-table td {
  padding: 14px 18px;
  border-bottom: 1px solid rgba(51, 65, 85, 0.5);
  color: var(--text-main);
  white-space: nowrap;
}

table.data-table tr:hover {
  background-color: rgba(255, 255, 255, 0.02);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.badge.success {
  background: rgba(16, 185, 129, 0.15);
  color: var(--emerald-400);
}

.badge.danger {
  background: rgba(244, 63, 94, 0.15);
  color: var(--rose-500);
}

.badge.warning {
  background: rgba(245, 158, 11, 0.15);
  color: var(--amber-500);
}

.badge.info {
  background: rgba(14, 165, 233, 0.15);
  color: var(--sky-500);
}

/* Botones de Acción */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--emerald-600);
  color: #fff;
}

.btn-primary:hover {
  background-color: var(--emerald-500);
  box-shadow: 0 0 12px var(--emerald-glow);
}

.btn-sm {
  padding: 6px 10px;
  font-size: 12px;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-main);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   MODAL FLOTANTE (Para Edición de Precios / Stock)
   -------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 16px;
}

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

.modal-content {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  width: 100%;
  max-width: 520px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: modalIn 0.2s ease-out;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

.modal-header {
  padding: 18px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 20px;
  cursor: pointer;
}

.modal-body {
  padding: 20px;
  max-height: 70vh;
  overflow-y: auto;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 10px 12px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: #fff;
  font-size: 14px;
  outline: none;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--border-focus);
}

.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.modal-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

/* --------------------------------------------------------------------------
   LOGIN ESPECÍFICO
   -------------------------------------------------------------------------- */
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
  background: radial-gradient(circle at 50% 20%, rgba(16, 185, 129, 0.08), transparent 50%), var(--bg-body);
}

.login-card {
  width: 100%;
  max-width: 420px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 36px 30px;
  box-shadow: var(--shadow-lg);
}

.login-brand {
  text-align: center;
  margin-bottom: 28px;
}

.login-brand .brand-icon {
  margin: 0 auto 14px;
  width: 52px;
  height: 52px;
  font-size: 26px;
}

.login-brand h2 {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
}

.login-brand p {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* --------------------------------------------------------------------------
   RESPONSIVE DESIGN (MÓVIL / TABLET)
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.8);
  }

  .main-wrapper {
    margin-left: 0;
  }

  .mobile-menu-btn {
    display: block;
  }

  .topbar {
    padding: 0 16px;
  }

  .content-body {
    padding: 16px;
  }

  .kpi-grid {
    grid-template-columns: 1fr;
  }
}