:root {
    --bg-main: #f5f7fa;
    --text-main: #111111;
    --text-muted: #666666;
    --text-light: #999999;
    --border-color: #eaeaea;
    --border-color-hover: #d0d0d0;
    --bg-surface: #ffffff;
    --bg-surface-hover: #f9f9f9;
    --bg-input: #ffffff;
    --color-primary: #0051c3;
    --color-success: #007a5a;
    --color-warning: #e3a008;
    --color-danger: #e02424;
    --color-neutral: #9ca3af;
    --sidebar-width: 260px;
    --topbar-height: 56px;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-main);
    color: var(--text-main);
    -webkit-font-smoothing: antialiased;
    line-height: 1.5;
    overflow: hidden; 
}

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

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

.main-body {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Topbar */
.topbar {
    height: var(--topbar-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-surface);
    z-index: 10;
}

.topbar-left, .topbar-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.account-name {
    font-size: 14px;
    font-weight: 600;
}

.topbar-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    background: none;
    border: none;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-main);
    cursor: pointer;
    padding: 6px 8px;
    border-radius: 6px;
}
.topbar-btn:hover {
    background-color: var(--bg-surface-hover);
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    border-right: 1px solid var(--border-color);
    background-color: var(--bg-surface);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.sidebar-search {
    display: flex;
    align-items: center;
    margin: 16px;
    padding: 0 12px;
    height: 36px;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    transition: all 0.2s;
}
.sidebar-search:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 1px var(--color-primary);
}

.sidebar-search input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 13px;
    margin: 0 8px;
    background: transparent;
}
.sidebar-search .search-icon {
    color: var(--text-light);
}
.shortcut {
    font-size: 11px;
    color: var(--text-muted);
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    padding: 2px 4px;
    border-radius: 4px;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    padding: 0 8px 24px 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: 2px;
}

.nav-item:hover {
    background-color: var(--bg-surface-hover);
    color: var(--text-main);
}

.nav-item.active {
    background-color: #f0f5ff;
    color: var(--color-primary);
}

.nav-section-title {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-light);
    letter-spacing: 0.5px;
    padding: 16px 12px 8px 12px;
}

/* Main Content */
.main-content {
    flex: 1;
    overflow-y: auto;
    background-color: var(--bg-main);
}

.dashboard {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px 32px 64px 32px;
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 32px;
}

.page-title {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-main);
    margin-bottom: 8px;
}

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

.btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
}
.btn-primary:hover {
    background-color: #0044a3;
}

.btn-outline {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    color: var(--text-main);
}
.btn-outline:hover {
    background-color: var(--bg-surface-hover);
    border-color: var(--border-color-hover);
}

/* KPI Grid */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 32px;
}

.kpi-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
    transition: transform 0.2s, box-shadow 0.2s;
}

.kpi-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.kpi-card.highlight {
    border: 2px solid var(--color-success);
    background: linear-gradient(180deg, #ffffff 0%, #f0fdf4 100%);
}

.kpi-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.kpi-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.kpi-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.kpi-icon.blue { background: #e1effe; color: #1a56db; }
.kpi-icon.green { background: #def7ec; color: #03543f; }
.kpi-icon.orange { background: #fdf6b2; color: #9b1c1c; }
.kpi-icon.red { background: #fde8e8; color: #9b1c1c; }

.kpi-value {
    font-size: 36px;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 8px;
    color: var(--text-main);
}

.kpi-trend {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    font-weight: 500;
}

.kpi-trend.up { color: var(--color-success); }
.kpi-trend.down { color: var(--color-danger); }
.kpi-trend.neutral { color: var(--text-muted); }
.kpi-trend.success { color: var(--color-success); font-weight: 600; }

/* Table Section */
.table-section {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

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

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

.header-controls {
    display: flex;
    gap: 12px;
}

.table-search {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    height: 36px;
}
.table-search input {
    border: none;
    outline: none;
    font-size: 13px;
    background: transparent;
}
.table-search svg { color: var(--text-light); }

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

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.data-table th, .data-table td {
    padding: 16px 24px;
    font-size: 14px;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--bg-surface-hover);
}

.data-table tbody tr {
    transition: background-color 0.2s;
}
.data-table tbody tr:hover {
    background-color: var(--bg-surface-hover);
}

.font-medium { font-weight: 500; }
.text-right { text-align: right; }

.highlight-col {
    background: #f0fdf4;
    color: #03543f;
}
.highlight-val {
    font-weight: 700;
    color: var(--color-success);
    background: rgba(222, 247, 236, 0.3);
}
.highlight-val.error {
    color: var(--color-warning);
}

/* Progress Bar */
.progress-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
}

.progress-bar {
    flex: 1;
    height: 8px;
    background-color: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    min-width: 100px;
}

.progress-fill {
    height: 100%;
    border-radius: 4px;
}

.fill-success { background-color: var(--color-success); }
.fill-warning { background-color: var(--color-warning); }
.fill-primary { background-color: var(--color-primary); }
.fill-neutral { background-color: var(--color-neutral); }

.progress-text {
    font-size: 13px;
    font-weight: 500;
    width: 32px;
}

/* Badges */
.badge {
    display: inline-flex;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success { background: #def7ec; color: #03543f; }
.badge-warning { background: #fdf6b2; color: #9b1c1c; }
.badge-primary { background: #e1effe; color: #1a56db; }
.badge-neutral { background: #f3f4f6; color: #4b5563; }

@media (max-width: 1024px) {
    .kpi-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .app-layout { flex-direction: column; }
    .sidebar { display: none; }
    .kpi-grid { grid-template-columns: 1fr; }
    .page-header { flex-direction: column; align-items: flex-start; gap: 16px; }
}