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

:root {
    --sidebar-bg: #1e3a5f;
    --sidebar-active: #2d5a8a;
    --sidebar-text: #ffffff;
    --main-bg: #f5f5f5;
    --header-bg: #e8e8e8;
    --text-primary: #333333;
    --text-secondary: #666666;
    --border-color: #e0e0e0;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    --purple: #8b5cf6;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--main-bg);
    color: var(--text-primary);
    line-height: 1.6;
}

.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 18px;
    font-weight: 600;
}

.logo svg {
    width: 28px;
    height: 28px;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: var(--sidebar-text);
    text-decoration: none;
    transition: background-color 0.2s;
    font-size: 15px;
}

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

.nav-item.active {
    background-color: var(--sidebar-active);
}

.nav-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.sidebar-section {
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.section-title {
    padding: 8px 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.7;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.user-info svg {
    width: 32px;
    height: 32px;
    padding: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.user-name {
    font-weight: 500;
    font-size: 14px;
}

.user-email {
    font-size: 12px;
    opacity: 0.8;
}

.logout-form {
    width: 100%;
}

.btn-logout {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px;
    background-color: var(--danger);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: background-color 0.2s;
}

.btn-logout:hover {
    background-color: #dc2626;
}

/* Main Content */
.main-content {
    margin-left: 260px;
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-header {
    background-color: var(--header-bg);
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-color);
}

.header-date {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
    text-transform: capitalize;
}

.content-wrapper {
    flex: 1;
    padding: 24px;
}

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

.page-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

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

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background-color: #2563eb;
}

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

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

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

/* Cards */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.card {
    background: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.card-title {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

.card-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-icon.blue {
    background-color: #dbeafe;
    color: #3b82f6;
}

.card-icon.orange {
    background-color: #fed7aa;
    color: #f97316;
}

.card-icon.green {
    background-color: #d1fae5;
    color: #10b981;
}

.card-icon.purple {
    background-color: #e9d5ff;
    color: #8b5cf6;
}

.card-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.card-value.green {
    color: var(--success);
}

.card-value.purple {
    color: var(--purple);
}

/* Table */
.table-container {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

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

.table thead {
    background-color: #f9fafb;
}

.table th {
    padding: 12px 16px;
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
}

.table tbody tr:hover {
    background-color: #f9fafb;
}

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

.form-label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--info);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    background-color: white;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    background: white;
    border-radius: 8px;
}

.empty-state-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    opacity: 0.3;
}

.empty-state-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

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

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 20px;
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #10b981;
}

.alert-error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #ef4444;
}

.alert ul {
    margin: 0;
    padding-left: 20px;
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: 8px;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.btn-icon {
    padding: 8px;
    width: 32px;
    height: 32px;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s;
    }

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

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

/* Utilities */
.text-right {
    text-align: right;
}

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

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }

.text-muted {
    color: var(--text-secondary);
}

.font-bold {
    font-weight: 700;
}