/* =============================================
   OMEGA HRM - Design System
   Premium Dark Theme with Glassmorphism
   ============================================= */

/* -- Google Fonts Import -- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Cairo:wght@300;400;500;600;700&display=swap');

/* -- CSS Variables -- */
:root {
    --bg-primary: #0f1117;
    --bg-secondary: #1a1d27;
    --bg-card: #1e2130;
    --bg-card-hover: #252840;
    --bg-glass: rgba(30, 33, 48, 0.8);
    --bg-input: #151722;

    --border-color: rgba(255, 255, 255, 0.06);
    --border-active: rgba(99, 102, 241, 0.5);

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --accent-primary: #6366f1;
    --accent-primary-hover: #818cf8;
    --accent-gradient: linear-gradient(135deg, #6366f1, #8b5cf6);
    --accent-glow: rgba(99, 102, 241, 0.3);

    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.1);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.1);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.1);
    --info: #3b82f6;
    --info-bg: rgba(59, 130, 246, 0.1);

    --sidebar-width: 260px;
    --header-height: 64px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.15);

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* -- Reset & Base -- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 14px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Cairo', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--accent-primary-hover);
}

/* -- Auth Pages -- */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.auth-wrapper::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: var(--accent-gradient);
    border-radius: 50%;
    filter: blur(150px);
    opacity: 0.15;
    top: -200px;
    right: -200px;
    animation: float 8s ease-in-out infinite;
}

.auth-wrapper::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #8b5cf6, #ec4899);
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.1;
    bottom: -150px;
    left: -150px;
    animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

.auth-card {
    width: 100%;
    max-width: 440px;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 48px 40px;
    position: relative;
    z-index: 1;
    box-shadow: var(--shadow-lg);
}

.auth-logo {
    text-align: center;
    margin-bottom: 32px;
}

.auth-logo h1 {
    font-size: 28px;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-logo p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-top: 8px;
}

/* -- Form Elements -- */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
    outline: none;
}

.form-control:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-control::placeholder {
    color: var(--text-muted);
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6,9 12,15 18,9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.form-check input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-primary);
    cursor: pointer;
}

.form-check label {
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 13px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* -- Buttons -- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--accent-glow);
    color: white;
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

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

.btn-danger:hover {
    background: #dc2626;
    transform: translateY(-1px);
    color: white;
}

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

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.btn-icon:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.btn-block {
    width: 100%;
}

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

/* -- Sidebar -- */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 100;
    transition: var(--transition);
}

.sidebar-brand {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 24px;
    border-bottom: 1px solid var(--border-color);
    gap: 12px;
}

.sidebar-brand .brand-icon {
    width: 36px;
    height: 36px;
    background: var(--accent-gradient);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 800;
    color: white;
}

.sidebar-brand h2 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
}

.sidebar-brand span {
    font-size: 11px;
    color: var(--text-muted);
    display: block;
    margin-top: 1px;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: 24px;
}

.nav-section-title {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0 12px;
    margin-bottom: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    margin-bottom: 2px;
    position: relative;
    cursor: pointer;
}

.nav-item:hover {
    background: rgba(99, 102, 241, 0.08);
    color: var(--text-primary);
}

.nav-item.active {
    background: rgba(99, 102, 241, 0.12);
    color: var(--accent-primary-hover);
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    width: 3px;
    height: 24px;
    background: var(--accent-primary);
    border-radius: 0 4px 4px 0;
}

.nav-item .nav-icon {
    font-size: 18px;
    width: 24px;
    text-align: center;
    flex-shrink: 0;
}

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

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px;
    border-radius: var(--radius-sm);
    background: var(--bg-card);
}

.sidebar-user .user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    color: white;
    flex-shrink: 0;
}

.sidebar-user .user-info {
    flex: 1;
    min-width: 0;
}

.sidebar-user .user-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user .user-role {
    font-size: 11px;
    color: var(--text-muted);
}

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

/* -- Header -- */
.header {
    height: var(--header-height);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    position: sticky;
    top: 0;
    z-index: 50;
}

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

.header-left h1 {
    font-size: 20px;
    font-weight: 700;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* -- Page Content -- */
.page-content {
    padding: 32px;
}

/* -- Stats Cards -- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-gradient);
    opacity: 0;
    transition: var(--transition);
}

.stat-card:hover {
    border-color: var(--border-active);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-card .stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 16px;
}

.stat-card .stat-icon.purple { background: rgba(99, 102, 241, 0.12); color: #818cf8; }
.stat-card .stat-icon.green { background: var(--success-bg); color: var(--success); }
.stat-card .stat-icon.blue { background: var(--info-bg); color: var(--info); }
.stat-card .stat-icon.orange { background: var(--warning-bg); color: var(--warning); }

.stat-card .stat-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
}

.stat-card .stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* -- Card -- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.card-header h2 {
    font-size: 16px;
    font-weight: 600;
}

.card-body {
    padding: 24px;
}

.card-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
}

/* -- Table -- */
.table-wrapper {
    overflow-x: auto;
}

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

thead th {
    padding: 14px 16px;
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

tbody td {
    padding: 14px 16px;
    font-size: 14px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

tbody tr {
    transition: var(--transition);
}

tbody tr:hover {
    background: rgba(99, 102, 241, 0.04);
}

tbody tr:last-child td {
    border-bottom: none;
}

/* -- Badge -- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success { background: var(--success-bg); color: var(--success); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-info { background: var(--info-bg); color: var(--info); }
.badge-purple { background: rgba(99, 102, 241, 0.12); color: #818cf8; }

/* -- Alerts -- */
.alert {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: slideDown 0.3s ease;
}

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

.alert-success { background: var(--success-bg); color: var(--success); border: 1px solid rgba(16, 185, 129, 0.2); }
.alert-danger { background: var(--danger-bg); color: var(--danger); border: 1px solid rgba(239, 68, 68, 0.2); }
.alert-warning { background: var(--warning-bg); color: var(--warning); border: 1px solid rgba(245, 158, 11, 0.2); }

/* -- Pagination -- */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 16px 0;
}

.pagination a, .pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 8px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    border: 1px solid transparent;
}

.pagination a:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.pagination .active span {
    background: var(--accent-primary);
    color: white;
}

.pagination .disabled span {
    color: var(--text-muted);
    cursor: not-allowed;
}

/* -- Empty State -- */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}

.empty-state .empty-icon {
    font-size: 56px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 18px;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.empty-state p {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 24px;
}

/* -- Activity List -- */
.activity-list {
    list-style: none;
}

.activity-item {
    display: flex;
    gap: 14px;
    padding: 14px 0;
    border-bottom: 1px solid var(--border-color);
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-primary);
    margin-top: 7px;
    flex-shrink: 0;
}

.activity-content {
    flex: 1;
}

.activity-content strong {
    color: var(--text-primary);
}

.activity-content p {
    font-size: 13px;
    color: var(--text-secondary);
}

.activity-time {
    font-size: 12px;
    color: var(--text-muted);
}

/* -- Filter Bar -- */
.filter-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.search-input {
    position: relative;
    flex: 1;
    min-width: 200px;
}

.search-input input {
    width: 100%;
    padding: 10px 16px 10px 40px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: var(--transition);
}

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

.search-input::before {
    content: '🔍';
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 14px;
}

/* -- Responsive -- */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

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

    .page-content {
        padding: 20px;
    }

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

    .form-row {
        grid-template-columns: 1fr;
    }

    .auth-card {
        margin: 20px;
        padding: 32px 24px;
    }
}

/* -- Scrollbar -- */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 3px;
}

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

/* -- Error List -- */
.error-list {
    list-style: none;
    padding: 0;
}

.error-list li {
    font-size: 13px;
    color: var(--danger);
    margin-bottom: 4px;
}

/* -- User Avatar Inline -- */
.user-inline {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-inline .avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
}

.user-inline .name {
    font-weight: 500;
    color: var(--text-primary);
}

.user-inline .email {
    font-size: 12px;
    color: var(--text-muted);
}

/* -- Actions -- */
.actions {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* -- Page Header -- */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.page-header h1 {
    font-size: 24px;
    font-weight: 700;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* -- Permission Grid -- */
.permission-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.permission-module {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 16px;
}

.permission-module h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-primary-hover);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}

.permission-item {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.permission-item input[type="checkbox"] {
    accent-color: var(--accent-primary);
}

/* -- Toolbar -- */
.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

/* -- Logout form in sidebar -- */
.logout-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 14px;
    font-family: inherit;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    width: 100%;
    transition: var(--transition);
}

.logout-btn:hover {
    background: var(--danger-bg);
    color: var(--danger);
}