.mode-tabs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.5rem; margin-bottom: 0.85rem; }
.mode-tab { display: flex; align-items: center; justify-content: center; padding: 0.7rem 0.35rem; background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-md); color: var(--color-text-muted); font-size: 0.78rem; font-weight: 600; cursor: pointer; transition: border-color .15s, background .15s; text-align: center; }
.mode-tab.active { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.mode-desc { font-size: 0.85rem; color: var(--color-text-muted); margin: 0 0 1.5rem; line-height: 1.45; }
#calculation-formula-breakdown { white-space: pre-line; }
.calc-calc-btn { width: 100%; padding: 0.9rem; margin-top: 1.25rem; }
.tax-year-badge { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; color: var(--color-primary); background: rgba(79,110,247,0.1); padding: 0.25rem 0.6rem; border-radius: var(--radius-sm); }
.dollar-bar-track { display: flex; height: 2rem; border-radius: var(--radius-md); overflow: hidden; margin-bottom: 0.75rem; }
.dollar-bar-seg { min-width: 2px; transition: width .2s; }
.dollar-bar-legend { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.35rem 1rem; font-size: 0.8rem; color: var(--color-text-muted); }
.dollar-bar-item { display: flex; align-items: center; gap: 0.35rem; }
.dollar-bar-dot { width: 0.55rem; height: 0.55rem; border-radius: 50%; flex-shrink: 0; }
.amort-table th { font-size: 0.72rem; text-transform: uppercase; color: var(--color-text-muted); font-weight: 700; padding: 0.5rem 0.4rem; border-bottom: 2px solid var(--color-border); }
.amort-table td { padding: 0.45rem 0.4rem; border-bottom: 1px solid var(--color-border); color: var(--color-secondary); }
.compare-offer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 640px) { .mode-tabs { grid-template-columns: repeat(2, 1fr); } .dollar-bar-legend { grid-template-columns: 1fr; } .compare-offer-grid { grid-template-columns: 1fr; } }