@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/icon?family=Material+Icons+Round');

:root {
    --bg-color: #f4f5f9;
    --sidebar-bg: #ffffff;
    --sidebar-hover: #f1f3f9;
    --sidebar-active-border: #667eea;
    --card-bg: #ffffff;
    --card-hover: #fcfdfd;
    --primary: #667eea;
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --success: #00c853;
    --warning: #e65100;
    --danger: #d50000;
    --info: #00b0ff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border: rgba(0, 0, 0, 0.08);
    --input-bg: #f8fafc;
    --input-border: rgba(0, 0, 0, 0.12);
    --input-focus: #667eea;
    
    --sidebar-width: 260px;
    --topbar-height: 64px;
    --border-radius-card: 16px;
    --border-radius-input: 10px;
    --border-radius-pill: 50px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.5;
}

a {
    color: inherit;
    text-decoration: none;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-color);
}
::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: var(--border-radius-pill);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

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

.sidebar-logo {
    height: var(--topbar-height);
    display: flex;
    align-items: center;
    padding: 0 24px;
    border-bottom: 1px solid var(--border);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
    gap: 10px;
}

.sidebar-logo span.icon {
    background: var(--primary-gradient);
    color: #fff;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 10px rgba(102, 126, 234, 0.4);
}

.sidebar-menu {
    list-style: none;
    padding: 20px 0;
    flex: 1;
    overflow-y: auto;
}

.sidebar-item {
    margin: 4px 16px;
}

.sidebar-link {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    border-radius: var(--border-radius-input);
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
    gap: 12px;
}

.sidebar-link:hover {
    background-color: var(--sidebar-hover);
    color: var(--text-primary);
}

.sidebar-item.active .sidebar-link {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.15), rgba(118, 75, 162, 0.15));
    color: var(--text-primary);
    border-left: 3px solid var(--sidebar-active-border);
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.sidebar-link span.material-icons-round {
    font-size: 1.25rem;
}

/* Layout Page Structure */
.layout-wrapper {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

/* Top bar */
.topbar {
    height: var(--topbar-height);
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
    position: sticky;
    top: 0;
    z-index: 99;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
}

.page-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.notification-bell {
    position: relative;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
}

.notification-bell:hover {
    color: var(--text-primary);
}

.notification-badge {
    position: absolute;
    top: -2px;
    right: -2px;
    width: 8px;
    height: 8px;
    background-color: var(--danger);
    border-radius: 50%;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: #fff;
    box-shadow: var(--shadow);
}

.user-name {
    font-size: 0.9rem;
    font-weight: 500;
}

/* Content Area */
.main-content {
    padding: 30px;
    flex: 1;
}

/* Cards */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-card);
    padding: 24px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-2px);
    border-color: rgba(102, 126, 234, 0.2);
}

/* Stat Grid */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-card);
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
    border-color: rgba(0, 0, 0, 0.1);
}

.stat-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

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

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}

.stat-icon.primary { background: var(--primary-gradient); }
.stat-icon.success { background: linear-gradient(135deg, #00e676 0%, #00b0ff 100%); }
.stat-icon.danger { background: linear-gradient(135deg, #ff5252 0%, #ff7b00 100%); }
.stat-icon.warning { background: linear-gradient(135deg, #ffab00 0%, #ff5252 100%); }
.stat-icon.info { background: linear-gradient(135deg, #00b0ff 0%, #00e676 100%); }

/* Status Dot with Pulse Animation */
.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 0.9rem;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    position: relative;
}

.dot.online {
    background-color: var(--success);
}

.dot.online::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    border-radius: 50%;
    border: 2px solid var(--success);
    animation: pulse 1.5s infinite;
}

.dot.offline {
    background-color: var(--danger);
}

.dot.busy {
    background-color: var(--warning);
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(1.8); opacity: 0; }
}

/* Tables styling */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    border-radius: var(--border-radius-card);
    border: 1px solid var(--border);
    margin-top: 20px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    background-color: var(--card-bg);
}

.data-table th {
    background-color: #f1f5f9;
    color: var(--text-secondary);
    padding: 16px 24px;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
}

.data-table td {
    padding: 16px 24px;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
    vertical-align: middle;
}

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

.data-table tbody tr:hover {
    background-color: rgba(0, 0, 0, 0.01);
}

.data-table tbody tr:nth-child(even) {
    background-color: #f8fafc;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: var(--border-radius-pill);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-success { background-color: rgba(0, 230, 118, 0.12); color: var(--success); }
.badge-warning { background-color: rgba(255, 171, 0, 0.12); color: var(--warning); }
.badge-danger { background-color: rgba(255, 82, 82, 0.12); color: var(--danger); }
.badge-info { background-color: rgba(0, 176, 255, 0.12); color: var(--info); }
.badge-primary { background-color: rgba(102, 126, 234, 0.12); color: var(--primary); }
.badge-secondary { background-color: rgba(90, 97, 119, 0.12); color: var(--text-secondary); }

/* Progress bar */
.progress-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
}

.progress-bar-bg {
    flex: 1;
    height: 6px;
    background-color: #e2e8f0;
    border-radius: var(--border-radius-pill);
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: var(--border-radius-pill);
    transition: width 0.5s ease-out;
}

.progress-text {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    min-width: 35px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--border-radius-input);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.btn-primary {
    background: var(--primary-gradient);
    color: #fff;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
    opacity: 0.95;
}

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

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

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

.btn-outline:hover {
    background-color: var(--sidebar-hover);
    color: var(--text-primary);
    border-color: var(--text-muted);
}

.btn:active {
    transform: scale(0.98);
}

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

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
}

.form-control {
    width: 100%;
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--border-radius-input);
    padding: 12px 16px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--input-focus);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

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

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%238892b0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 18px;
    padding-right: 48px;
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.modal.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-card);
    width: 100%;
    max-width: 500px;
    padding: 30px;
    box-shadow: var(--shadow);
    transform: translateY(-20px);
    transition: var(--transition);
}

.modal.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

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

.close-modal {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
}

.close-modal:hover {
    color: var(--text-primary);
}

/* Filter controls bar */
.filter-bar {
    display: flex;
    gap: 15px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

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

.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    pointer-events: none;
}

.search-wrapper .form-control {
    padding-left: 44px;
}

.filter-select {
    width: 180px;
}

/* CSS Bar Chart for analytics */
.chart-container {
    height: 250px;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    padding-top: 20px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 10px;
}

.chart-bar-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    height: 100%;
    justify-content: flex-end;
    gap: 10px;
}

.chart-bar {
    width: 60%;
    max-width: 40px;
    border-top-left-radius: 6px;
    border-top-right-radius: 6px;
    background: var(--primary-gradient);
    min-height: 4px;
    position: relative;
    transition: height 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.chart-bar:hover {
    filter: brightness(1.2);
}

.chart-tooltip {
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--bg-color);
    border: 1px solid var(--border);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
}

.chart-bar:hover .chart-tooltip {
    opacity: 1;
}

.chart-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Toast System */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-left: 4px solid var(--primary);
    border-radius: 8px;
    padding: 16px 24px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 280px;
    color: var(--text-primary);
    transform: translateX(120%);
    animation: slideInRight 0.3s forwards cubic-bezier(0.4, 0, 0.2, 1);
}

.toast.success { border-left-color: var(--success); }
.toast.danger { border-left-color: var(--danger); }
.toast.warning { border-left-color: var(--warning); }
.toast.info { border-left-color: var(--info); }

@keyframes slideInRight {
    to { transform: translateX(0); }
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
}

.page-link {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
}

.page-link:hover, .page-link.active {
    background: var(--primary-gradient);
    color: #fff;
    border-color: transparent;
}

/* Login Page Custom Styles */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at 10% 20%, #f4f5f9 0%, #e2e8f0 100%);
    padding: 20px;
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.08);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-logo {
    width: 60px;
    height: 60px;
    background: var(--primary-gradient);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    color: #fff;
    font-size: 2rem;
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.4);
}

.login-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.login-subtitle {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.form-input-icon {
    position: relative;
}

.form-input-icon span.material-icons-round {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.form-input-icon .form-control {
    padding-left: 44px;
}

/* Tabs for Employee department filter */
.tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
}

.tab {
    padding: 8px 16px;
    border-radius: var(--border-radius-pill);
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.tab:hover, .tab.active {
    background: var(--primary-gradient);
    color: #fff;
    border-color: transparent;
}

/* Responsive Utilities */
@media (max-width: 991px) {
    :root {
        --sidebar-width: 0px;
    }
    
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
        width: 260px;
    }
    
    .layout-wrapper {
        margin-left: 0;
    }
    
    .menu-toggle {
        display: block;
    }
}