@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

body {
    margin: 0;
    min-height: 100vh;
    background: var(--background);
    color: var(--foreground);
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
}

.app-header {
    background: var(--header-bg);
    color: var(--header-text);
    padding: 14px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.app-header h1 {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 600;
}

.panel {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}

.label {
    display: block;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--muted-foreground);
    margin: 10px 0 4px;
}

.input {
    width: 100%;
    box-sizing: border-box;
    border: 1px solid var(--input);
    border-radius: calc(var(--radius) - 2px);
    padding: 8px 10px;
    font: inherit;
    font-size: 0.85rem;
    color: var(--foreground);
    background: var(--background);
}

.input:focus {
    outline: 2px solid var(--ring);
    outline-offset: 0;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--primary);
    color: var(--primary-foreground);
    border: none;
    border-radius: calc(var(--radius) - 2px);
    padding: 8px 16px;
    font: inherit;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
}

.btn:hover {
    background: var(--primary-hover);
}

.btn:disabled {
    opacity: 0.5;
    cursor: default;
}

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

.btn-secondary:hover {
    background: var(--accent-soft);
}

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

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

.btn-sm {
    padding: 4px 10px;
    font-size: 0.78rem;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.data-table th {
    background: var(--table-header-bg);
    text-align: left;
    padding: 9px 12px;
    font-weight: 600;
}

.data-table td {
    border-top: 1px solid var(--border);
    padding: 9px 12px;
}

.data-table tr.selectable {
    cursor: pointer;
}

.data-table tr.selectable:hover {
    background: var(--accent-soft);
}

.data-table tr.selected {
    background: var(--accent-soft);
}

.error-text {
    color: var(--destructive);
    font-size: 0.82rem;
    margin-top: 10px;
}

.success-text {
    color: var(--success);
    font-size: 0.82rem;
    margin-top: 10px;
}

.section-title {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--muted-foreground);
    margin: 22px 0 4px;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--border);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 16px;
}

@media (max-width: 720px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
}