@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,wght@0,500;0,600;1,500;1,600&family=Inter:wght@400;500;600;700&display=swap');

:root {
    --calc-bg: #FBF9F4;
    --calc-ink: #14231D;
    --calc-ink-soft: #4B5750;
    --calc-pine: #163832;
    --calc-leaf: #3C8B6E;
    --calc-leaf-soft: #E4F0EA;
    --calc-gold: #C89B3C;
    --calc-gold-soft: #FBF3E2;
    --calc-line: #E4E1D8;
    --calc-radius: 18px;
}

.calc-card {
    width: 100%;
    max-width: 620px;
    margin: 40px auto;
    box-sizing: border-box;
    background: var(--calc-bg);
    border: 1px solid var(--calc-line);
    border-radius: var(--calc-radius);
    padding: 40px 36px 36px;
    font-family: 'Inter', sans-serif;
    color: var(--calc-ink);
}

.calc-card * { box-sizing: border-box; }

.calc-card .eyebrow {
    font-size: 12px;
    letter-spacing: 0.12em;
    font-weight: 600;
    color: var(--calc-leaf);
    text-transform: uppercase;
    margin-bottom: 10px;
}

.calc-card .calc-title {
    font-family: 'Fraunces', serif;
    font-weight: 500;
    font-size: 30px;
    line-height: 1.2;
    color: var(--calc-pine);
    margin: 0 0 28px;
    max-width: 480px;
}

.calc-card .calc-title em {
    font-style: italic;
    color: var(--calc-leaf);
}

.calc-card .controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 32px;
}

.calc-card .field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.calc-card .field.full { grid-column: 1 / -1; }

.calc-card .field-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--calc-ink-soft);
    display: flex;
    justify-content: space-between;
}

.calc-card .field-label span.val {
    color: var(--calc-pine);
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.calc-card .amount-input {
    display: flex;
    align-items: center;
    border: 1.5px solid var(--calc-line);
    border-radius: 10px;
    background: #fff;
    overflow: hidden;
    transition: border-color 0.15s ease;
}

.calc-card .amount-input:focus-within {
    border-color: var(--calc-leaf);
}

.calc-card .amount-input span {
    padding: 0 0 0 14px;
    font-weight: 600;
    color: var(--calc-ink-soft);
}

.calc-card .amount-input input[type="number"] {
    border: none;
    outline: none;
    padding: 12px 14px;
    font-size: 16px;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    width: 100%;
    background: transparent;
    color: var(--calc-ink);
}

.calc-card .toggle-group {
    display: flex;
    border: 1.5px solid var(--calc-line);
    border-radius: 10px;
    overflow: hidden;
    background: #fff;
}

.calc-card .toggle-group button {
    flex: 1;
    border: none;
    background: transparent;
    padding: 12px 10px;
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    font-weight: 600;
    color: var(--calc-ink-soft);
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}

.calc-card .toggle-group button.active {
    background: var(--calc-leaf);
    color: #fff;
}

.calc-card .toggle-group button:focus-visible,
.calc-card input:focus-visible,
.calc-card .cta:focus-visible {
    outline: 2px solid var(--calc-leaf);
    outline-offset: 2px;
}

.calc-card input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 4px;
    background: var(--calc-line);
    outline: none;
}

.calc-card input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--calc-leaf);
    cursor: pointer;
    border: 3px solid #fff;
    box-shadow: 0 0 0 1px var(--calc-leaf);
}

.calc-card input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--calc-leaf);
    cursor: pointer;
    border: 3px solid #fff;
    box-shadow: 0 0 0 1px var(--calc-leaf);
}

.calc-card .visual {
    display: flex;
    justify-content: center;
    margin: 8px 0 28px;
}

.calc-card .ring-wrap {
    position: relative;
    width: 220px;
    height: 220px;
}

.calc-card .ring-wrap svg { width: 100%; height: 100%; overflow: visible; }

.calc-card .member-dot {
    fill: #fff;
    stroke: var(--calc-leaf);
    stroke-width: 2;
}

.calc-card .member-dot.you {
    fill: var(--calc-gold);
    stroke: var(--calc-gold);
}

.calc-card .pot-circle {
    fill: var(--calc-leaf-soft);
    stroke: var(--calc-leaf);
    stroke-width: 1.5;
}

.calc-card .pot-icon {
    font-size: 26px;
}

.calc-card .coin {
    fill: var(--calc-gold);
    opacity: 0;
}

@keyframes travel {
    0% { opacity: 0; }
    8% { opacity: 1; }
    85% { opacity: 1; }
    100% { opacity: 0; }
}

.calc-card .results {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 28px;
}

.calc-card .result-block {
    background: #fff;
    border: 1.5px solid var(--calc-line);
    border-radius: 14px;
    padding: 18px 18px 16px;
}

.calc-card .result-block.highlight {
    background: var(--calc-gold-soft);
    border-color: var(--calc-gold);
}

.calc-card .result-label {
    font-size: 12.5px;
    color: var(--calc-ink-soft);
    font-weight: 500;
    line-height: 1.4;
    margin-bottom: 8px;
}

.calc-card .result-value {
    font-family: 'Fraunces', serif;
    font-weight: 600;
    font-size: 26px;
    color: var(--calc-pine);
    font-variant-numeric: tabular-nums;
}

.calc-card .result-block.highlight .result-value { color: var(--calc-gold); }

.calc-card .note {
    font-size: 13px;
    color: var(--calc-ink-soft);
    line-height: 1.5;
    margin: -10px 0 26px;
}

.calc-card .note strong { color: var(--calc-pine); }

.calc-card .cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    background: var(--calc-pine);
    color: #fff;
    border: none;
    border-radius: 12px;
    padding: 16px;
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.1s ease;
}

.calc-card .cta:hover { background: var(--calc-leaf); }
.calc-card .cta:active { transform: scale(0.99); }

@media (max-width: 480px) {
    .calc-card { padding: 28px 20px 26px; margin: 24px auto; }
    .calc-card .calc-title { font-size: 24px; }
    .calc-card .controls { grid-template-columns: 1fr; }
    .calc-card .results { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
    .calc-card .coin { animation: none !important; opacity: 0.6; }
}