:root {
    --card-bg: #ffffff;
    --muted-600: #6b7280;
    --accent: #18a999;
    --primary: #2f9d63;
    --danger: #d64545;
    --soft-bg: #f6fbf7;
}

.calc-hero {
    padding: 1.2rem 0;
    border-bottom: 1px solid rgba(15, 23, 36, 0.04);
}

.calc-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1rem
}

.grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem
}

.card {
    background: var(--card-bg);
    padding: 1rem;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(15, 23, 36, 0.06)
}

h1,
h2,
h3 {
    color: var(--primary)
}

label {
    display: block;
    font-weight: 700;
    margin-bottom: .25rem
}

.form-row {
    display: flex;
    gap: .6rem;
    flex-wrap: wrap;
    align-items: center;
    margin-bottom: .6rem
}

input[type="number"],
input[type="text"],
select {
    padding: .55rem .6rem;
    border-radius: 8px;
    border: 1px solid rgba(15, 23, 36, 0.08);
    width: 100%;
}

.small {
    font-size: .9rem;
    color: var(--muted-600)
}

.btn-row {
    display: flex;
    gap: .6rem;
    flex-wrap: wrap;
    margin-top: .6rem
}

.btn-ghost {
    background: transparent;
    border: 1px solid rgba(15, 23, 36, 0.06);
    padding: .55rem .7rem;
    border-radius: 8px
}

.btn-primary {
    background: var(--primary);
    color: white;
    padding: .6rem .9rem;
    border-radius: 10px;
    border: none;
    font-weight: 700
}

.muted {
    color: var(--muted-600)
}

.expenses-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: .6rem
}

.expenses-table th,
.expenses-table td {
    padding: .45rem .5rem;
    border: 1px solid rgba(15, 23, 36, 0.06);
    text-align: left
}

.stack {
    display: flex;
    flex-direction: column;
    gap: .6rem
}

.result-block {
    display: flex;
    flex-direction: column;
    gap: .35rem;
    padding: .8rem;
    border-radius: 8px;
    background: linear-gradient(180deg, #fbfff9, #ffffff)
}

.result-value {
    font-weight: 800;
    font-size: 1.2rem;
    color: var(--primary)
}

.error {
    color: var(--danger);
    font-weight: 700
}

/* Proportion bars */
.bars {
    display: flex;
    flex-direction: column;
    gap: .5rem
}

.bar-row {
    display: flex;
    align-items: center;
    gap: .6rem
}

.bar-label {
    width: 120px;
    font-size: .95rem
}

.bar-visual {
    flex: 1;
    height: 14px;
    background: #f1f5f9;
    border-radius: 8px;
    overflow: hidden;
    position: relative
}

.bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 8px 0 0 8px
}

.bar-percent {
    width: 58px;
    text-align: right;
    font-weight: 700
}

/* Responsive */
@media(min-width:980px) {
    .grid {
        grid-template-columns: 1fr 420px
    }

    .form-row input[type="number"] {
        width: auto;
        min-width: 120px
    }
}

/* Tiny helpers */
.muted-block {
    background: #fbfffb;
    padding: .6rem;
    border-radius: 8px;
    border: 1px solid rgba(47, 157, 99, 0.06)
}

.cta-link {
    display: inline-block;
    margin-top: .6rem
}

.visually-hidden {
    position: absolute;
    left: -9999px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden
}