/**
 * Admin CSS - Admin Panel Styles
 * Dar Al Faraana Contracting - Attendance System
 */

/* Import Tailwind CSS */
@import url('https://cdn.jsdelivr.net/npm/tailwindcss@2.2.19/dist/tailwind.min.css');

/* Custom Variables */
:root {
    --admin-primary: #1e40af;
    --admin-primary-dark: #1e3a8a;
    --admin-secondary: #059669;
    --admin-accent: #7c3aed;
    --admin-danger: #dc2626;
    --admin-warning: #d97706;
    --admin-success: #16a34a;
    --admin-info: #0ea5e9;
    --admin-gray-50: #f8fafc;
    --admin-gray-100: #f1f5f9;
    --admin-gray-200: #e2e8f0;
    --admin-gray-300: #cbd5e1;
    --admin-gray-400: #94a3b8;
    --admin-gray-500: #64748b;
    --admin-gray-600: #475569;
    --admin-gray-700: #334155;
    --admin-gray-800: #1e293b;
    --admin-gray-900: #0f172a;
    --admin-sidebar-width: 280px;
    --admin-header-height: 70px;
    --admin-border-radius: 0.5rem;
    --admin-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --admin-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --admin-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --admin-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --admin-transition: all 0.3s ease;
}

/* Global Admin Styles */
.admin-body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--admin-gray-50);
    color: var(--admin-gray-700);
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

/* Admin Layout */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

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

.admin-sidebar.collapsed {
    width: 70px;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.sidebar-logo {
    width: 50px;
    height: 50px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: var(--admin-primary);
    font-weight: bold;
    font-size: 1.5rem;
}

.sidebar-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.sidebar-subtitle {
    font-size: 0.8rem;
    opacity: 0.8;
}

/* Navigation */
.admin-nav {
    padding: 1rem 0;
}

.nav-section {
    margin-bottom: 2rem;
}

.nav-section-title {
    padding: 0 1.5rem 0.5rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.7;
    font-weight: 600;
}

.nav-item {
    display: block;
    padding: 0.75rem 1.5rem;
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: var(--admin-transition);
    position: relative;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
}

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

.nav-item.active {
    background: rgba(255, 255, 255, 0.15);
    color: white;
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: white;
}

.nav-icon {
    width: 20px;
    height: 20px;
    margin-right: 0.75rem;
    display: inline-block;
    text-align: center;
}

.nav-text {
    display: inline-block;
    transition: var(--admin-transition);
}

.nav-badge {
    background: var(--admin-danger);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: 10px;
    min-width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
}

.admin-sidebar.collapsed .nav-text,
.admin-sidebar.collapsed .sidebar-title,
.admin-sidebar.collapsed .sidebar-subtitle,
.admin-sidebar.collapsed .nav-section-title {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

.admin-sidebar.collapsed .nav-badge {
    right: 0.5rem;
    font-size: 0.7rem;
    min-width: 16px;
    height: 16px;
    padding: 0.1rem 0.3rem;
}

/* Main Content */
.admin-main {
    flex: 1;
    margin-left: var(--admin-sidebar-width);
    transition: var(--admin-transition);
}

.admin-sidebar.collapsed + .admin-main {
    margin-left: 70px;
}

/* Header */
.admin-header {
    height: var(--admin-header-height);
    background: white;
    border-bottom: 1px solid var(--admin-gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--admin-shadow-sm);
}

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

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--admin-gray-600);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--admin-border-radius);
    transition: var(--admin-transition);
}

.sidebar-toggle:hover {
    background: var(--admin-gray-100);
    color: var(--admin-gray-800);
}

.page-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--admin-gray-800);
    margin: 0;
}

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

.header-time {
    font-size: 0.9rem;
    color: var(--admin-gray-600);
    font-family: 'Monaco', 'Menlo', monospace;
}

.admin-user {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    border-radius: var(--admin-border-radius);
    transition: var(--admin-transition);
    cursor: pointer;
}

.admin-user:hover {
    background: var(--admin-gray-100);
}

.user-avatar {
    width: 35px;
    height: 35px;
    background: var(--admin-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--admin-gray-800);
}

.user-role {
    font-size: 0.75rem;
    color: var(--admin-gray-500);
}

/* Content Area */
.admin-content {
    padding: 2rem;
    min-height: calc(100vh - var(--admin-header-height));
}

/* Cards */
.admin-card {
    background: white;
    border-radius: var(--admin-border-radius);
    box-shadow: var(--admin-shadow);
    border: 1px solid var(--admin-gray-200);
    overflow: hidden;
}

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

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--admin-gray-800);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-subtitle {
    font-size: 0.9rem;
    color: var(--admin-gray-600);
    margin-top: 0.25rem;
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    padding: 1rem 1.5rem;
    background: var(--admin-gray-50);
    border-top: 1px solid var(--admin-gray-200);
}

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

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--admin-border-radius);
    box-shadow: var(--admin-shadow);
    border: 1px solid var(--admin-gray-200);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--stat-color, var(--admin-primary));
}

.stat-card.success::before { background: var(--admin-success); }
.stat-card.warning::before { background: var(--admin-warning); }
.stat-card.danger::before { background: var(--admin-danger); }
.stat-card.info::before { background: var(--admin-info); }

.stat-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.stat-title {
    font-size: 0.9rem;
    color: var(--admin-gray-600);
    font-weight: 500;
    margin: 0;
}

.stat-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--admin-border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--stat-bg, rgba(30, 64, 175, 0.1));
    color: var(--stat-color, var(--admin-primary));
    font-size: 1.2rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--admin-gray-800);
    margin-bottom: 0.5rem;
}

.stat-change {
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

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

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

/* Tables */
.admin-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

.admin-table th {
    background: var(--admin-gray-50);
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--admin-gray-700);
    border-bottom: 2px solid var(--admin-gray-200);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.admin-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--admin-gray-200);
    color: var(--admin-gray-700);
}

.admin-table tr:hover {
    background: var(--admin-gray-50);
}

.table-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

/* Buttons */
.admin-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: var(--admin-border-radius);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--admin-transition);
    text-decoration: none;
    text-align: center;
    white-space: nowrap;
}

.admin-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--admin-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--admin-shadow-md);
}

.btn-secondary {
    background: var(--admin-gray-600);
    color: white;
}

.btn-secondary:hover:not(:disabled) {
    background: var(--admin-gray-700);
}

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

.btn-success:hover:not(:disabled) {
    background: #15803d;
}

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

.btn-danger:hover:not(:disabled) {
    background: #b91c1c;
}

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

.btn-warning:hover:not(:disabled) {
    background: #c2410c;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--admin-gray-300);
    color: var(--admin-gray-700);
}

.btn-outline:hover:not(:disabled) {
    background: var(--admin-gray-100);
    border-color: var(--admin-gray-400);
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
}

/* Forms */
.admin-form {
    max-width: 600px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--admin-gray-700);
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--admin-gray-300);
    border-radius: var(--admin-border-radius);
    font-size: 0.9rem;
    transition: var(--admin-transition);
    background: white;
}

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

.form-control.error {
    border-color: var(--admin-danger);
}

.form-error {
    color: var(--admin-danger);
    font-size: 0.8rem;
    margin-top: 0.25rem;
}

.form-help {
    color: var(--admin-gray-500);
    font-size: 0.8rem;
    margin-top: 0.25rem;
}

/* Select */
.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 2.5rem;
}

/* Modals */
.admin-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    animation: fadeIn 0.3s ease;
}

.admin-modal.show {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: var(--admin-border-radius);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--admin-shadow-lg);
    animation: slideIn 0.3s ease;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--admin-gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--admin-gray-800);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--admin-gray-500);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: var(--admin-border-radius);
    transition: var(--admin-transition);
}

.modal-close:hover {
    background: var(--admin-gray-100);
    color: var(--admin-gray-700);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--admin-gray-200);
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

/* Alerts */
.admin-alert {
    padding: 1rem 1.5rem;
    border-radius: var(--admin-border-radius);
    margin-bottom: 1.5rem;
    border: 1px solid;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.alert-success {
    background: #f0fdf4;
    color: #166534;
    border-color: #bbf7d0;
}

.alert-error {
    background: #fef2f2;
    color: #991b1b;
    border-color: #fecaca;
}

.alert-warning {
    background: #fffbeb;
    color: #92400e;
    border-color: #fed7aa;
}

.alert-info {
    background: #eff6ff;
    color: #1e40af;
    border-color: #dbeafe;
}

.alert-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.alert-message {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Calendar */
.admin-calendar {
    background: white;
    border-radius: var(--admin-border-radius);
    overflow: hidden;
    box-shadow: var(--admin-shadow);
}

.calendar-header {
    background: var(--admin-primary);
    color: white;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.calendar-nav {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--admin-border-radius);
    transition: var(--admin-transition);
}

.calendar-nav:hover {
    background: rgba(255, 255, 255, 0.1);
}

.calendar-title {
    font-size: 1.2rem;
    font-weight: 600;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
}

.calendar-day-header {
    padding: 1rem;
    text-align: center;
    font-weight: 600;
    background: var(--admin-gray-50);
    border-bottom: 1px solid var(--admin-gray-200);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.calendar-day {
    min-height: 100px;
    padding: 0.5rem;
    border-bottom: 1px solid var(--admin-gray-200);
    border-right: 1px solid var(--admin-gray-200);
    position: relative;
}

.calendar-day:nth-child(7n) {
    border-right: none;
}

.calendar-day.other-month {
    background: var(--admin-gray-50);
    color: var(--admin-gray-400);
}

.calendar-day.today {
    background: rgba(30, 64, 175, 0.1);
}

.day-number {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.day-events {
    font-size: 0.75rem;
}

.day-event {
    background: var(--admin-primary);
    color: white;
    padding: 0.125rem 0.25rem;
    border-radius: 0.25rem;
    margin-bottom: 0.25rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.day-event.present {
    background: var(--admin-success);
}

.day-event.absent {
    background: var(--admin-danger);
}

.day-event.leave {
    background: var(--admin-warning);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .admin-sidebar {
        transform: translateX(-100%);
    }
    
    .admin-sidebar.show {
        transform: translateX(0);
    }
    
    .admin-main {
        margin-left: 0;
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

@media (max-width: 768px) {
    .admin-content {
        padding: 1rem;
    }
    
    .admin-header {
        padding: 0 1rem;
    }
    
    .page-title {
        font-size: 1.25rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .admin-table {
        font-size: 0.8rem;
    }
    
    .admin-table th,
    .admin-table td {
        padding: 0.5rem;
    }
    
    .table-actions {
        flex-direction: column;
        gap: 0.25rem;
    }
    
    .modal-content {
        margin: 1rem;
        width: calc(100% - 2rem);
    }
}

@media (max-width: 480px) {
    .admin-sidebar {
        width: 100%;
    }
    
    .card-header,
    .card-body,
    .card-footer {
        padding: 1rem;
    }
    
    .admin-btn {
        font-size: 0.8rem;
        padding: 0.375rem 0.75rem;
    }
    
    .calendar-day {
        min-height: 80px;
        padding: 0.25rem;
    }
    
    .nav-text {
        flex: 1;
        font-size: 0.9rem;
    }
}

/* Loading States */
.loading {
    opacity: 0.6;
}

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: currentColor;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Print Styles */
@media print {
    .admin-sidebar,
    .admin-header,
    .table-actions,
    .admin-btn {
        display: none !important;
    }
    
    .admin-main {
        margin-left: 0;
    }
    
    .admin-content {
        padding: 0;
    }
    
    .admin-card {
        box-shadow: none;
        border: 1px solid #000;
    }
}