:root {
    --primary: #2563eb;
    --secondary: #64748b;
    --accent: #f59e0b;
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --text-main: #1e293b;
    --border: #e2e8f0;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    margin: 0;
    line-height: 1.5;
}

.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--border);
}

.tab {
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    font-weight: 600;
    color: var(--secondary);
    transition: all 0.2s;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
}

.tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.search-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    background: #f1f5f9;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

input,
button {
    padding: 0.625rem 1rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.875rem;
}

button {
    background: var(--primary);
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s;
}

button:hover {
    opacity: 0.9;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

th,
td {
    text-align: left;
    padding: 0.75rem;
    border-bottom: 1px solid var(--border);
}

th {
    background: #f8fafc;
    font-weight: 600;
}

tr:hover {
    background: #f1f5f9;
    cursor: pointer;
}

.table-container {
    max-height: 220px;
    /* Approximately 5 rows */
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: 8px;
    position: relative;
}

/* Sticky Header */
thead th {
    position: sticky;
    top: 0;
    z-index: 10;
    background: #f8fafc;
    box-shadow: 0 1px 0 var(--border);
    /* Visual bottom border */
}

tr.active-row {
    background-color: #dbeafe !important;
    border-left: 4px solid var(--primary);
}

.section-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary);
}

.hidden {
    display: none;
}

.text-right {
    text-align: right !important;
}