/* ============================================
   NEXORA - Panel Administrativo
   Sistema Integral de Gestión de Plomería
   Estilos CSS Admin Dashboard
   ============================================ */

/* ========== Variables CSS Admin ========== */
:root {
    --admin-primary: #1e40af;
    --admin-primary-dark: #1e3a8a;
    --admin-secondary: #0891b2;
    --admin-success: #10b981;
    --admin-warning: #f59e0b;
    --admin-danger: #ef4444;
    --admin-info: #3b82f6;
    
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 70px;
    --header-height: 65px;
    
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-dark: #111827;
    --bg-sidebar: #1f2937;
    
    --border-color: #e5e7eb;
    --border-radius: 12px;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    overflow-x: hidden;
}

/* ========== Layout Principal ========== */
.admin-wrapper {
    display: flex;
    min-height: 100vh;
}

/* ========== Sidebar ========== */
.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, var(--bg-sidebar) 0%, var(--bg-dark) 100%);
    color: white;
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    transition: var(--transition);
    z-index: 1000;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
}

.sidebar-header {
    padding: 1.5rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: white;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.3rem;
}

.sidebar-brand i {
    font-size: 1.8rem;
    color: var(--admin-info);
}

.sidebar.collapsed .brand-text {
    display: none;
}

.sidebar-toggle {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    width: 35px;
    height: 35px;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.sidebar-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* ========== Navegación Sidebar ========== */
.sidebar-nav {
    padding: 1rem 0;
}

.nav-section-title {
    padding: 1rem 1.5rem 0.5rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: rgba(255, 255, 255, 0.5);
    font-weight: 600;
}

.sidebar.collapsed .nav-section-title {
    display: none;
}

.nav-item {
    margin: 0.25rem 0.75rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    border-radius: 8px;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.nav-link.active {
    background: linear-gradient(135deg, var(--admin-primary) 0%, var(--admin-info) 100%);
    color: white;
}

.nav-link i {
    font-size: 1.25rem;
    width: 24px;
    text-align: center;
}

.sidebar.collapsed .nav-link span {
    display: none;
}

.nav-badge {
    margin-left: auto;
    background: var(--admin-danger);
    color: white;
    font-size: 0.7rem;
    padding: 0.2rem 0.5rem;
    border-radius: 50px;
    font-weight: 600;
}

.sidebar.collapsed .nav-badge {
    position: absolute;
    right: 5px;
    top: 5px;
}

/* ========== Main Content ========== */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: var(--transition);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.sidebar.collapsed ~ .main-content {
    margin-left: var(--sidebar-collapsed-width);
}

/* ========== Header ========== */
.admin-header {
    background: white;
    height: var(--header-height);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 999;
    display: flex;
    align-items: center;
    padding: 0 2rem;
    justify-content: space-between;
}

.header-search {
    flex: 1;
    max-width: 500px;
}

.header-search input {
    width: 100%;
    padding: 0.6rem 1rem 0.6rem 2.5rem;
    border: 2px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.95rem;
    transition: var(--transition);
}

.header-search input:focus {
    outline: none;
    border-color: var(--admin-primary);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.header-search i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-icon-btn {
    position: relative;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: none;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.header-icon-btn:hover {
    background: var(--admin-primary);
    color: white;
}

.header-icon-btn .badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--admin-danger);
    color: white;
    font-size: 0.65rem;
    padding: 0.2rem 0.4rem;
    border-radius: 50px;
    font-weight: 600;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    background: var(--bg-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.user-menu:hover {
    background: var(--admin-primary);
    color: white;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--admin-primary) 0%, var(--admin-info) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
}

.user-info h6 {
    margin: 0;
    font-size: 0.9rem;
    font-weight: 600;
}

.user-info p {
    margin: 0;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* ========== Content Area ========== */
.content-area {
    flex: 1;
    padding: 2rem;
}

.page-header {
    margin-bottom: 2rem;
}

.page-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.page-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.page-breadcrumb i {
    font-size: 0.75rem;
}

/* ========== Dashboard Cards ========== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
}

.stat-icon.primary {
    background: linear-gradient(135deg, var(--admin-primary) 0%, var(--admin-info) 100%);
}

.stat-icon.success {
    background: linear-gradient(135deg, var(--admin-success) 0%, #059669 100%);
}

.stat-icon.warning {
    background: linear-gradient(135deg, var(--admin-warning) 0%, #d97706 100%);
}

.stat-icon.danger {
    background: linear-gradient(135deg, var(--admin-danger) 0%, #dc2626 100%);
}

.stat-content {
    flex: 1;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-change {
    font-size: 0.8rem;
    margin-top: 0.25rem;
}

.stat-change.positive {
    color: var(--admin-success);
}

.stat-change.negative {
    color: var(--admin-danger);
}

/* ========== Cards ========== */
.card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    margin-bottom: 1.5rem;
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-body {
    padding: 1.5rem;
}

/* ========== Tables ========== */
.table-container {
    overflow-x: auto;
}

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

.data-table thead {
    background: var(--bg-secondary);
}

.data-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--border-color);
}

.data-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.data-table tbody tr {
    transition: var(--transition);
}

.data-table tbody tr:hover {
    background: var(--bg-secondary);
}

/* ========== Badges ========== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.4rem 0.8rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-primary {
    background: rgba(30, 64, 175, 0.1);
    color: var(--admin-primary);
}

.badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--admin-success);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--admin-warning);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--admin-danger);
}

.badge-info {
    background: rgba(59, 130, 246, 0.1);
    color: var(--admin-info);
}

/* ========== Buttons ========== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--admin-primary) 0%, var(--admin-info) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-success {
    background: var(--admin-success);
    color: white;
}

.btn-danger {
    background: var(--admin-danger);
    color: white;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--admin-primary);
    color: var(--admin-primary);
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
}

/* ========== Forms ========== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--admin-primary);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M10.293 3.293L6 7.586 1.707 3.293A1 1 0 00.293 4.707l5 5a1 1 0 001.414 0l5-5a1 1 0 10-1.414-1.414z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 3rem;
}

/* ========== Modal ========== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

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

.modal {
    background: white;
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 1.3rem;
    font-weight: 700;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
}

/* ========== Action Buttons ========== */
.action-btn {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.action-btn.edit {
    background: rgba(59, 130, 246, 0.1);
    color: var(--admin-info);
}

.action-btn.edit:hover {
    background: var(--admin-info);
    color: white;
}

.action-btn.delete {
    background: rgba(239, 68, 68, 0.1);
    color: var(--admin-danger);
}

.action-btn.delete:hover {
    background: var(--admin-danger);
    color: white;
}

.action-btn.view {
    background: rgba(16, 185, 129, 0.1);
    color: var(--admin-success);
}

.action-btn.view:hover {
    background: var(--admin-success);
    color: white;
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .sidebar.collapsed ~ .main-content {
        margin-left: 0;
    }
}

@media (max-width: 768px) {
    .admin-header {
        padding: 0 1rem;
    }
    
    .header-search {
        display: none;
    }
    
    .content-area {
        padding: 1rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .user-info {
        display: none;
    }
}

/* ========== Scrollbar ========== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--text-light);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* ========== Utilities ========== */
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

.text-center { text-align: center; }
.text-right { text-align: right; }

.d-flex { display: flex; }
.align-items-center { align-items: center; }
.justify-content-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }

.w-100 { width: 100%; }