/* ===================================================================
   AMIU Administration - Professional Admin Dashboard Styles
   ================================================================= */

/* ========== GLOBAL VARIABLES ========== */
:root {
    --amiu-primary: #008E4B;
    --amiu-secondary: #004995;
    --amiu-success: #23C02E;
    --amiu-info: #9BD8FE;
    --amiu-warning: #F8B86C;
    --amiu-danger: #F95741;
    --amiu-light: #F8F9FA;
    --amiu-dark: #535353;
    --amiu-gray-100: #F8F9FA;
    --amiu-gray-200: #E9ECEF;
    --amiu-gray-300: #DEE2E6;
    --amiu-gray-400: #CED4DA;
    --amiu-gray-500: #ADB5BD;
    --amiu-gray-600: #6C757D;
    --amiu-gray-700: #495057;
    --amiu-gray-800: #343A40;
    --amiu-gray-900: #212529;
    
    /* Layout dimensions */
    --sidebar-width: 280px;
    --sidebar-collapsed-width: 70px;
    --topbar-height: 70px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.1);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.3s ease;
}

/* ========== RESET & BASE ========== */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--amiu-gray-100);
    color: var(--amiu-gray-900);
    line-height: 1.6;
}

/* ========== LOGIN LAYOUT ========== */
.login-container {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--amiu-primary) 0%, var(--amiu-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
    overflow: hidden;
}

.login-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
}

.login-card {
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    padding: 0;
    width: 100%;
    max-width: 420px;
    position: relative;
    z-index: 1;
    border: none;
    overflow: hidden;
}

.login-header {
    background: linear-gradient(135deg, var(--amiu-primary), var(--amiu-secondary));
    color: white;
    padding: 2rem;
    text-align: center;
    border-radius: 0;
    border: none;
}

.login-header .logo-container {
    margin-bottom: 1rem;
}

.login-header .logo-container img {
    height: 48px;
    filter: brightness(0) invert(1);
}

.login-header h3 {
    margin: 0;
    font-weight: 600;
    font-size: 1.5rem;
}

.login-body {
    padding: 2.5rem 2rem;
}

.login-form .field {
    margin-bottom: 1.5rem;
}

.login-form .form-label {
    font-weight: 600;
    color: var(--amiu-gray-700);
    margin-bottom: 0.5rem;
    display: block;
}

.login-form .form-control {
    border: 2px solid var(--amiu-gray-300);
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 1rem;
    transition: var(--transition-fast);
    width: 100%;
}

.login-form .form-control:focus {
    border-color: var(--amiu-primary);
    box-shadow: 0 0 0 3px rgba(0, 142, 75, 0.1);
    outline: none;
}

.login-btn {
    background: linear-gradient(135deg, var(--amiu-primary), var(--amiu-secondary));
    border: none;
    border-radius: 8px;
    color: white;
    font-weight: 600;
    padding: 14px 20px;
    font-size: 1rem;
    transition: var(--transition-fast);
    width: 100%;
    margin-top: 1rem;
}

.login-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.login-links {
    margin-top: 1.5rem;
    text-align: center;
}

.login-links a {
    color: var(--amiu-primary);
    text-decoration: none;
    font-weight: 500;
}

.login-links a:hover {
    text-decoration: underline;
}

/* ========== ADMIN LAYOUT ========== */
.admin-layout {
    display: flex;
    min-height: 100vh;
    background-color: var(--amiu-gray-100);
}

/* ========== SIDEBAR ========== */
.admin-sidebar {
    width: var(--sidebar-width);
    background: white;
    box-shadow: var(--shadow-md);
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    z-index: 1000;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    transform: translateX(0);
}

.admin-sidebar.collapsed {
    transform: translateX(-100%);
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--amiu-gray-200);
    display: flex;
    align-items: center;
    min-height: var(--topbar-height);
    transition: var(--transition-smooth);
}

.sidebar-header .logo {
    height: 36px;
    transition: var(--transition-smooth);
}

.sidebar-header .brand-text {
    margin-left: 12px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--amiu-gray-900);
    transition: var(--transition-smooth);
    white-space: nowrap;
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 1rem 0;
}

.sidebar-nav {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sidebar-nav-item {
    margin: 0;
}

.sidebar-nav-link {
    display: flex;
    align-items: center;
    padding: 12px 1.5rem;
    color: var(--amiu-gray-700);
    text-decoration: none;
    transition: var(--transition-fast);
    border-left: 3px solid transparent;
    font-weight: 500;
    white-space: nowrap;
}

.sidebar-nav-link:hover {
    background-color: var(--amiu-gray-100);
    color: var(--amiu-primary);
    border-left-color: var(--amiu-primary);
}

.sidebar-nav-link.active {
    background-color: rgba(0, 142, 75, 0.1);
    color: var(--amiu-primary);
    border-left-color: var(--amiu-primary);
}

.sidebar-nav-icon {
    width: 20px;
    margin-right: 12px;
    text-align: center;
    transition: var(--transition-smooth);
}

.sidebar-nav-text {
    transition: var(--transition-smooth);
}

/* ========== MAIN CONTENT AREA ========== */
.admin-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.admin-sidebar.collapsed + .admin-main {
    margin-left: 0;
}

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

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

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--amiu-gray-600);
    font-size: 1.25rem;
    padding: 8px;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition-fast);
    margin-right: 1rem;
    min-width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-toggle:hover {
    background-color: var(--amiu-gray-100);
    color: var(--amiu-primary);
    transform: scale(1.05);
}

.page-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--amiu-gray-900);
    margin: 0;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-dropdown {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-fast);
    color: var(--amiu-gray-700);
}

.user-dropdown:hover {
    background-color: var(--amiu-gray-100);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--amiu-primary), var(--amiu-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
}

/* ========== CONTENT AREA ========== */
.admin-content {
    flex: 1;
    padding: 2rem;
    background-color: var(--amiu-gray-100);
}

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

.content-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--amiu-gray-900);
    margin: 0 0 0.5rem 0;
}

.content-subtitle {
    color: var(--amiu-gray-600);
    margin: 0;
}

/* ========== CARDS ========== */
.admin-card {
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--amiu-gray-200);
    margin-bottom: 1.5rem;
    overflow: hidden;
    transition: var(--transition-fast);
}

.admin-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.admin-card-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--amiu-gray-200);
    background-color: var(--amiu-gray-50);
}

.admin-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--amiu-gray-900);
    margin: 0;
}

.admin-card-body {
    padding: 1.5rem;
}

/* ========== NAVIGATION ENHANCEMENTS ========== */
.sidebar-section {
    margin: 1.5rem 0;
}

.sidebar-section-title {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--amiu-gray-500);
    padding: 0 1.5rem;
    margin-bottom: 0.5rem;
}

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

/* ========== RESPONSIVE DESIGN ========== */
@media (max-width: 768px) {
    .admin-sidebar {
        transform: translateX(-100%);
    }
    
    .admin-sidebar.mobile-open {
        transform: translateX(0);
        z-index: 1001;
    }
    
    .admin-main {
        margin-left: 0;
    }
    
    .mobile-overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 1000;
        display: none;
    }
    
    .mobile-overlay.active {
        display: block;
    }
    
    .sidebar-toggle {
        display: block;
    }
}

/* ========== DASHBOARD WIDGETS ========== */
.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: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--amiu-gray-200);
    transition: var(--transition-fast);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.stat-icon.primary {
    background: rgba(0, 142, 75, 0.1);
    color: var(--amiu-primary);
}

.stat-icon.secondary {
    background: rgba(0, 73, 149, 0.1);
    color: var(--amiu-secondary);
}

.stat-icon.success {
    background: rgba(35, 192, 46, 0.1);
    color: var(--amiu-success);
}

.stat-icon.warning {
    background: rgba(248, 184, 108, 0.1);
    color: var(--amiu-warning);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--amiu-gray-900);
    margin: 0 0 0.25rem 0;
}

.stat-label {
    color: var(--amiu-gray-600);
    font-weight: 500;
    margin: 0;
}

/* ========== ENHANCED FORM STYLES ========== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    font-weight: 600;
    color: var(--amiu-gray-700);
    margin-bottom: 0.5rem;
    display: block;
}

.form-control-enhanced {
    border: 2px solid var(--amiu-gray-300);
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 1rem;
    transition: var(--transition-fast);
    width: 100%;
    background-color: white;
}

.form-control-enhanced:focus {
    border-color: var(--amiu-primary);
    box-shadow: 0 0 0 3px rgba(0, 142, 75, 0.1);
    outline: none;
}

.btn-primary-enhanced {
    background: linear-gradient(135deg, var(--amiu-primary), var(--amiu-secondary));
    border: none;
    border-radius: 8px;
    color: white;
    font-weight: 600;
    padding: 12px 24px;
    font-size: 1rem;
    transition: var(--transition-fast);
    cursor: pointer;
}

.btn-primary-enhanced:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* ========== UTILITY CLASSES ========== */
.text-primary { color: var(--amiu-primary) !important; }
.text-secondary { color: var(--amiu-secondary) !important; }
.bg-primary { background-color: var(--amiu-primary) !important; }
.bg-secondary { background-color: var(--amiu-secondary) !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 0.5rem !important; }
.mb-2 { margin-bottom: 1rem !important; }
.mb-3 { margin-bottom: 1.5rem !important; }
.mb-4 { margin-bottom: 2rem !important; }

.fade-in {
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ========== BLAZORISE OVERRIDES ========== */
.b-bar-vertical {
    box-shadow: var(--shadow-md) !important;
}

.b-bar-item .b-bar-link {
    border-radius: 0 !important;
    transition: var(--transition-fast) !important;
}

.b-bar-item .b-bar-link:hover {
    background-color: rgba(0, 142, 75, 0.1) !important;
}

/* ========== LOADING STATES ========== */
.loading-spinner {
    border: 3px solid var(--amiu-gray-300);
    border-top: 3px solid var(--amiu-primary);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
    margin-right: 8px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ========== ALERTS & NOTIFICATIONS ========== */
.alert-modern {
    border: none;
    border-radius: 8px;
    padding: 1rem 1.25rem;
    border-left: 4px solid;
    margin-bottom: 1rem;
}

.alert-modern.alert-danger {
    background-color: rgba(249, 87, 65, 0.1);
    border-left-color: var(--amiu-danger);
    color: var(--amiu-danger);
}

.alert-modern.alert-success {
    background-color: rgba(35, 192, 46, 0.1);
    border-left-color: var(--amiu-success);
    color: var(--amiu-success);
}

/* ========== BREADCRUMBS ========== */
.breadcrumb-modern {
    background: none;
    padding: 0;
    margin: 0 0 1rem 0;
}

.breadcrumb-modern .breadcrumb-item {
    color: var(--amiu-gray-600);
    font-weight: 500;
}

.breadcrumb-modern .breadcrumb-item.active {
    color: var(--amiu-primary);
}

/* ========== DATA GRID ENHANCEMENTS ========== */
.b-datagrid {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--amiu-gray-200);
}

.b-datagrid-header {
    background-color: var(--amiu-gray-50);
    font-weight: 600;
}

.b-datagrid-row:hover {
    background-color: rgba(0, 142, 75, 0.05);
}