@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700&display=swap');

:root {
    --primary-color: #333333;
    --accent-orange: #f3a05b;
    --accent-red: #a0281e;
    --bg-light: #ffffff;
    --bg-input: #f8f8f8;
    --border-color: #e2e8f0;
    --text-main: #333333;
    --text-muted: #666666;
    --radius: 4px;
}

.bs-calculator-container {
    font-family: 'Montserrat', sans-serif;
    color: var(--text-main);
    max-width: 900px;
    margin: 2rem auto;
    background: var(--bg-light);
    padding: 2.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.bs-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.bs-subtitle {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 2rem;
}

.bs-info-box {
    background: #f8fafc;
    border-left: 4px solid var(--primary-color);
    padding: 1rem 1.5rem;
    margin-bottom: 2rem;
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--primary-color);
}

.bs-section {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #f1f5f9;
}

.bs-section:last-of-type {
    border-bottom: none;
}

.bs-label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--primary-color);
    font-size: 0.9rem;
    text-transform: uppercase;
}

/* Input Fields */
.bs-input-group {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.bs-input-wrapper {
    flex: 1;
    min-width: 200px;
}

.bs-number-input {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    padding: 0.85rem;
    border-radius: var(--radius);
    color: var(--text-main);
    font-size: 1rem;
    transition: all 0.2s ease;
}

.bs-number-input:focus {
    outline: none;
    border-color: var(--accent-orange);
    background: #fff;
}

/* Stone Selection Grid */
.bs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 0.75rem;
}

.bs-card {
    background: #fff;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

.bs-card:hover {
    border-color: var(--accent-orange);
}

.bs-card.active {
    border-color: var(--primary-color);
    background: var(--bg-input);
}

.bs-card-title {
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
}

/* Color Selection */
.bs-colors {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.bs-color-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: #fff;
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius);
    border: 2px solid var(--border-color);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.85rem;
    font-weight: 500;
}

.bs-color-option:hover {
    border-color: var(--accent-orange);
}

.bs-color-option.active {
    border-color: var(--primary-color);
    background: var(--bg-input);
}

.bs-color-circle {
    width: 14px;
    height: 14px;
    border-radius: 2px;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

/* Summary Box */
.bs-summary {
    background: var(--bg-input);
    border-radius: var(--radius);
    padding: 2rem;
    margin-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.bs-total-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
}

.bs-total-price {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.bs-disclaimer {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 1.5rem;
    line-height: 1.4;
}

.bs-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 1rem 2.5rem;
    border-radius: var(--radius);
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s ease;
    letter-spacing: 1px;
}

.bs-btn:hover {
    background: #000;
    transform: translateY(-1px);
}

@media (max-width: 600px) {
    .bs-calculator-container {
        padding: 1.5rem;
        margin: 0;
        border: none;
        box-shadow: none;
    }
    .bs-summary {
        flex-direction: column;
        text-align: center;
    }
    .bs-total-price {
        font-size: 1.75rem;
    }
}