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

:root {
    --primary-color: #00A3C4;
    --primary-hover: #008BA3;
    --primary-light: rgba(0, 163, 196, 0.08);
    --success-color: #10B981;
    --warning-color: #F59E0B;
    --error-color: #EF4444;
    --text-primary: #0F172A;
    --text-secondary: #64748B;
    --text-muted: #94A3B8;
    --bg-color: #F8FAFC;
    --bg-surface: #FFFFFF;
    --border-color: #E2E8F0;
    --border-light: #F1F5F9;
    --hover-bg: #F1F5F9;
    --sidebar-width: 240px;
    --sidebar-collapsed: 64px;
    --topnav-height: 64px;
    --border-radius: 10px;
    --border-radius-sm: 6px;
    --border-radius-lg: 16px;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    margin-left: var(--sidebar-width);
    transition: margin-left var(--transition-normal);
}

.sidebar.collapsed ~ .main-content {
    margin-left: var(--sidebar-collapsed);
}

.page-container {
    flex: 1;
    padding: 28px 32px;
    max-width: 1500px;
    margin: 0 auto;
    width: 100%;
    overflow-y: auto;
}

.card {
    background: var(--bg-surface);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    padding: 24px;
    transition: all var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border-light);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.2px;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 9px 18px;
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
    gap: 6px;
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    box-shadow: 0 2px 4px rgba(0, 163, 196, 0.2);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    box-shadow: 0 4px 8px rgba(0, 163, 196, 0.25);
    transform: translateY(-0.5px);
}

.btn-primary:active {
    transform: translateY(0);
}

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

.btn-secondary:hover {
    background-color: #E2E8F0;
}

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

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

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

.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    gap: 4px;
}

.badge-success {
    background-color: rgba(16, 185, 129, 0.08);
    color: var(--success-color);
}

.badge-warning {
    background-color: rgba(245, 158, 11, 0.08);
    color: var(--warning-color);
}

.badge-error {
    background-color: rgba(239, 68, 68, 0.08);
    color: var(--error-color);
}

.badge-info {
    background-color: rgba(0, 163, 196, 0.08);
    color: var(--primary-color);
}

.progress-bar {
    height: 6px;
    background-color: var(--border-light);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.progress-fill.success {
    background-color: var(--success-color);
}

.progress-fill.warning {
    background-color: var(--warning-color);
}

.progress-fill.error {
    background-color: var(--error-color);
}

.progress-fill.info {
    background-color: var(--primary-color);
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.grid-5 {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.grid-7-3 {
    display: grid;
    grid-template-columns: 7fr 3fr;
    gap: 28px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
}

.breadcrumb-item {
    font-size: 14px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.breadcrumb-item:hover {
    color: var(--primary-color);
}

.breadcrumb-item.active {
    color: var(--text-primary);
    font-weight: 600;
    cursor: default;
}

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

.page-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.page-subtitle {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 28px;
}

.section {
    margin-bottom: 28px;
}

input, select, textarea {
    font-family: inherit;
    font-size: 14px;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

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

.table th, .table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

.table th {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table td {
    font-size: 14px;
    color: var(--text-primary);
}

.table tr:hover td {
    background-color: var(--hover-bg);
}

@media (max-width: 1024px) {
    .main-content {
        margin-left: var(--sidebar-collapsed);
    }
    .grid-4, .grid-5 {
        grid-template-columns: repeat(2, 1fr);
    }
    .grid-7-3 {
        grid-template-columns: 1fr;
    }
    .page-container {
        padding: 20px;
    }
}

@media (max-width: 768px) {
    .main-content {
        margin-left: 0;
    }
    .grid-2, .grid-3, .grid-4, .grid-5 {
        grid-template-columns: 1fr;
    }
    .page-container {
        padding: 16px;
    }
    .page-title {
        font-size: 24px;
    }
}