/* Calculation Section */
.calc-section {
    margin-bottom: 30px;
}

.calc-section-box {
    background-color: var(--abstract-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 20px;
    transition: all 0.3s ease;
}

/* Input Grid */
.input-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.input-group label {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-color);
}

.std-input {
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: 'EB Garamond', 'Times New Roman', Times, serif;
    font-size: 16px;
    background-color: var(--paper-bg);
    color: var(--text-color);
    transition: all 0.3s ease;
}

.std-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(26, 24, 22, 0.1);
}

[data-theme="dark"] .std-input:focus {
    box-shadow: 0 0 0 2px rgba(228, 230, 224, 0.2);
}

/* Action Section */
.action-section {
    margin: 30px 0;
}

.action-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.btn-calculate,
.btn-reset {
    padding: 12px 32px;
    border-radius: 4px;
    cursor: pointer;
    font-family: 'EB Garamond', 'Times New Roman', Times, serif;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-calculate {
    background-color: var(--text-color);
    color: var(--paper-bg);
    border: 2px solid var(--text-color);
}

.btn-calculate:hover {
    opacity: 0.85;
    transform: translateY(-1px);
}

.btn-reset {
    background-color: var(--paper-bg);
    color: var(--text-color);
    border: 2px solid var(--border-color);
}

.btn-reset:hover {
    background-color: var(--abstract-bg);
}

.results-section h2 {
    font-size: 20px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 6px;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 30px;
}

.result-card {
    background-color: var(--abstract-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.result-card:hover {
    border-color: var(--accent-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.result-label {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
    color: var(--text-color);
    opacity: 0.8;
}

.result-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 8px;
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 8px;
}

.result-unit {
    font-size: 14px;
    font-weight: 400;
    opacity: 0.7;
}

/* Attribution Section */
.attribution-section {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--light-border);
}

.attribution-box {
    background-color: var(--notice-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 16px 20px;
    font-size: 13px;
    text-align: center;
    font-style: italic;
}

.attribution-box b {
    font-weight: 600;
    font-style: normal;
}

/* Responsive */
@media (max-width: 768px) {
    body {
        padding: 30px 20px;
    }

    .input-grid {
        grid-template-columns: 1fr;
    }

    .results-grid {
        grid-template-columns: 1fr;
    }

    .action-buttons {
        flex-direction: column;
    }

    .btn-calculate,
    .btn-reset {
        width: 100%;
    }

    .result-value {
        font-size: 24px;
    }
}

/* Print styles */
@media print {
    .theme-toggle,
    .action-section {
        display: none;
    }

    .calc-section-box,
    .result-card,
    .attribution-box {
        border: 1px solid #000;
        background-color: #fff;
    }

    .results-section {
        border-top: 2px solid #000;
    }
}