:root {
    --primary: #2563eb;
    --secondary: #059669;
    --danger: #dc2626;
    --bg: #f8fafc;
    --card: #ffffff;
    --text: #0f172a;
    --muted: #64748b;
}

body {
    font-family: -apple-system, sans-serif;
    background-color: var(--bg);
    margin: 0; padding: 0;
    display: flex; flex-direction: column; align-items: center;
}

.main-menu { width: 100%; max-width: 550px; display: flex; gap: 10px; padding: 15px; box-sizing: border-box; }
.menu-btn { flex: 1; padding: 12px; border: none; background: #e2e8f0; color: var(--muted); border-radius: 12px; font-weight: 700; cursor: pointer; }
.menu-btn.active { background: var(--text); color: white; }

.calculator-card { background: var(--card); width: 100%; max-width: 550px; padding: 24px; box-sizing: border-box; border-radius: 24px 24px 0 0; min-height: 100vh; }
.page { display: none; }
.page.active { display: block; }

.tabs { display: flex; background: #f1f5f9; padding: 4px; border-radius: 12px; margin-bottom: 20px; }
.tab-btn { flex: 1; padding: 10px; border: none; background: transparent; color: var(--muted); border-radius: 8px; font-weight: 600; cursor: pointer; }
.tab-btn.active { background: white; color: var(--primary); }

.input-group { margin-bottom: 15px; }
label { display: block; font-size: 11px; font-weight: 700; color: var(--muted); text-transform: uppercase; margin-bottom: 5px; }
input, select { width: 100%; padding: 12px; border: 1px solid #e2e8f0; border-radius: 10px; font-size: 16px; box-sizing: border-box; }
.flex-row { display: flex; gap: 10px; }

.asset-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.add-asset-btn { background: var(--text); color: white; border: none; padding: 10px 20px; border-radius: 10px; font-weight: 700; cursor: pointer; }

.asset-card { background: #f8fafc; border: 1px solid #e2e8f0; padding: 16px; border-radius: 16px; margin-bottom: 16px; }
.asset-card-footer { margin-top: 15px; display: flex; justify-content: flex-end; }
.remove-btn { background: #fee2e2; color: var(--danger); border: none; padding: 8px 16px; border-radius: 8px; font-size: 12px; font-weight: 700; cursor: pointer; }

.highlight { background: #f0fdf4; padding: 15px; border-radius: 12px; border: 1px solid #bbf7d0; margin: 20px 0; }
.loan-stats { display: flex; gap: 10px; margin: 20px 0; }
.stat-box { flex: 1; text-align: center; background: #f8fafc; padding: 15px; border-radius: 12px; border: 1px solid #e2e8f0; }
.green { color: var(--secondary); }

.result-summary { text-align: center; padding: 24px; background: #eff6ff; border-radius: 16px; margin: 24px 0; }
.result-summary p { font-size: 32px; font-weight: 800; margin: 0; color: var(--primary); }

.chart-container { height: 320px; margin-bottom: 24px; }
.table-wrapper { overflow-x: auto; border: 1px solid #e2e8f0; border-radius: 12px; background: white; }
table { width: 100%; border-collapse: collapse; font-size: 11px; }
th, td { padding: 12px; text-align: left; border-bottom: 1px solid #f1f5f9; white-space: nowrap; }