body { background-color: var(--canvas); color: var(--ink);
}

.main-content {
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

h1 {
    font-family: 'Crimson Pro', serif;
    font-size: 2.5rem;
    font-weight: 700; color: var(--info-strong);
    margin-bottom: 1rem;
    text-align: center;
}

.subtitle {
    text-align: center; color: var(--ink-60);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.calculator-card { background-color: var(--surface); border-radius: var(--r-sm);
    padding: 2.5rem; box-shadow: none;
    margin-bottom: 2rem;
}

.info-box { background-color: var(--canvas); border-left: 4px solid var(--keyline);
    padding: 1.5rem;
    margin-bottom: 2rem;
    border-radius: var(--r-sm);
}

.info-box p { color: var(--ink-70);
    margin-bottom: 0.5rem;
}

.info-box p:last-child {
    margin-bottom: 0;
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem; color: var(--ink);
    font-weight: 500;
    font-size: 0.95rem;
}

.optional-label { color: var(--ink-60);
    font-size: 0.85rem;
    font-weight: 400;
    margin-left: 0.5rem;
}

input {
    width: 100%;
    padding: 0.75rem; background-color: var(--canvas); border: 2px solid var(--rule); border-radius: var(--r-sm); color: var(--ink);
    font-size: 1rem;
    font-family: 'Work Sans', sans-serif;
    transition: border-color 0.3s ease;
}

input:focus {
    outline: none; border-color: var(--keyline);
}

input::placeholder { color: var(--ink-60);
}

.calculate-btn {
    width: 100%;
    padding: 1rem; background-color: var(--ink);
    color: white;
    border: none; border-radius: var(--r-sm);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease;
    font-family: 'Work Sans', sans-serif;
    margin-top: 1rem;
}

.calculate-btn:hover { background-color: var(--ink-strong);
}

.results {
    display: none;
    margin-top: 2rem;
    padding-top: 2rem; border-top: 2px solid var(--rule);
}

.results.show {
    display: block;
}

.result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem; background-color: var(--canvas); border-radius: var(--r-sm);
    margin-bottom: 0.75rem;
}

.result-label { color: var(--ink-60);
    font-size: 0.95rem;
}

.result-value {
    font-size: 1.3rem;
    font-weight: 600; color: var(--ink);
}

.result-row.loss .result-value {
    color: var(--negative);
}

.result-row.win .result-value {
    color: var(--positive);
}

.result-row.net { background-color: var(--surface); border: 2px solid var(--keyline);
    padding: 1.25rem;
    margin-top: 1rem;
}

.result-row.net .result-label { color: var(--ink);
    font-size: 1.1rem;
    font-weight: 600;
}

.result-row.net .result-value {
    font-size: 1.6rem; color: var(--info-strong);
}

.result-row.net.positive .result-value {
    color: var(--positive);
}

.result-row.net.negative .result-value {
    color: var(--negative);
}

@media (max-width: 640px) {
    h1 {
        font-size: 2rem;
    }

    .calculator-card {
        padding: 1.5rem;
    }

    .result-value {
        font-size: 1.1rem;
    }

    .result-row.net .result-value {
        font-size: 1.4rem;
    }
}

/* Reward type toggle */
.reward-toggle { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; margin-bottom: 1.25rem; }
.reward-btn {
    padding: 0.7rem 0.5rem; border-radius: var(--r-sm); border: 2px solid var(--rule); background: var(--canvas); color: var(--ink-60);
    font-family: 'Work Sans', sans-serif;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    line-height: 1.3;
}
.reward-btn:hover { border-color: var(--keyline); color: var(--info-strong); }
.reward-btn.active { background: var(--ink); border-color: var(--keyline); color: var(--surface); }
.reward-btn span { display: block; font-size: 0.7rem; font-weight: 400; opacity: 0.85; margin-top: 0.15rem; }
.chip-note { background: var(--canvas);
    border-left: 3px solid var(--caution-deep);
    border-radius: var(--r-sm);
    padding: 0.7rem 0.9rem;
    font-size: 0.85rem; color: var(--ink-60);
    line-height: 1.55;
    margin: -0.4rem 0 1.25rem;
}
.chip-note strong { color: var(--caution-deep); }
.chip-note.warn { border-left-color: var(--caution-deep); }