/* Advanced Bra Size Calculator UK - Styles */
.bsc-wrapper {
    --bsc-primary: #e91e63;
    --bsc-primary-dark: #c2185b;
    --bsc-bg: #ffffff;
    --bsc-surface: #fdf2f8;
    --bsc-border: #fce7f3;
    --bsc-text: #1f2937;
    --bsc-muted: #6b7280;
    --bsc-radius: 12px;
    --bsc-shadow: 0 4px 20px rgba(233, 30, 99, 0.08);

    max-width: 680px;
    margin: 0 auto;
    padding: 24px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
    color: var(--bsc-text);
    line-height: 1.5;
    background: var(--bsc-bg);
    border-radius: var(--bsc-radius);
    box-shadow: var(--bsc-shadow);
}

.bsc-title {
    font-size: 1.75rem;
    font-weight: 700;
    text-align: center;
    margin: 0 0 8px;
    color: var(--bsc-text);
}

.bsc-intro {
    text-align: center;
    color: var(--bsc-muted);
    font-size: 0.95rem;
    margin-bottom: 24px;
}

/* Unit Toggle */
.bsc-unit-toggle {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 28px;
}

.bsc-unit-btn {
    padding: 8px 24px;
    border: 2px solid var(--bsc-border);
    background: #fff;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--bsc-muted);
}

.bsc-unit-btn:hover {
    border-color: var(--bsc-primary);
    color: var(--bsc-primary);
}

.bsc-unit-btn.active {
    background: var(--bsc-primary);
    border-color: var(--bsc-primary);
    color: #fff;
}

/* Sections */
.bsc-section {
    margin-bottom: 28px;
    padding: 20px;
    background: var(--bsc-surface);
    border-radius: var(--bsc-radius);
    border: 1px solid var(--bsc-border);
}

.bsc-section-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0 0 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.bsc-step {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--bsc-primary);
    color: #fff;
    border-radius: 50%;
    font-size: 0.85rem;
    font-weight: 700;
}

.bsc-optional {
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--bsc-muted);
}

.bsc-help {
    font-size: 0.875rem;
    color: var(--bsc-muted);
    margin: 0 0 16px;
}

/* Fields */
.bsc-field {
    margin-bottom: 16px;
}

.bsc-field:last-child {
    margin-bottom: 0;
}

.bsc-field label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 6px;
}

.bsc-input-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.bsc-input-group input {
    flex: 1;
    padding: 12px 14px;
    border: 2px solid var(--bsc-border);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s;
    background: #fff;
}

.bsc-input-group input:focus {
    outline: none;
    border-color: var(--bsc-primary);
    box-shadow: 0 0 0 3px rgba(233, 30, 99, 0.15);
}

.bsc-unit-label {
    font-size: 0.9rem;
    color: var(--bsc-muted);
    min-width: 50px;
}

.bsc-hint {
    display: block;
    font-size: 0.8rem;
    color: var(--bsc-muted);
    margin-top: 4px;
}

/* Shape selection */
.bsc-shapes {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 10px;
}

.bsc-shape-option {
    cursor: pointer;
}

.bsc-shape-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.bsc-shape-card {
    display: block;
    padding: 14px;
    background: #fff;
    border: 2px solid var(--bsc-border);
    border-radius: 10px;
    transition: all 0.2s ease;
    height: 100%;
}

.bsc-shape-card strong {
    display: block;
    font-size: 0.95rem;
    margin-bottom: 4px;
}

.bsc-shape-card small {
    font-size: 0.78rem;
    color: var(--bsc-muted);
    line-height: 1.35;
}

.bsc-shape-option input:checked + .bsc-shape-card,
.bsc-shape-option:hover .bsc-shape-card {
    border-color: var(--bsc-primary);
    background: #fff5f8;
}

.bsc-shape-option input:focus-visible + .bsc-shape-card {
    box-shadow: 0 0 0 3px rgba(233, 30, 99, 0.25);
}

/* Button */
.bsc-btn-primary {
    display: block;
    width: 100%;
    padding: 16px 24px;
    background: var(--bsc-primary);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.2s, transform 0.15s;
    margin-bottom: 24px;
}

.bsc-btn-primary:hover {
    background: var(--bsc-primary-dark);
}

.bsc-btn-primary:active {
    transform: scale(0.98);
}

.bsc-btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Results */
.bsc-results {
    animation: bsc-fade-in 0.4s ease;
}

@keyframes bsc-fade-in {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.bsc-result-card {
    background: var(--bsc-surface);
    border: 1px solid var(--bsc-border);
    border-radius: var(--bsc-radius);
    padding: 20px;
    margin-bottom: 16px;
}

.bsc-result-card h3 {
    margin: 0 0 12px;
    font-size: 1.05rem;
    font-weight: 600;
}

.bsc-primary-result {
    background: linear-gradient(135deg, #fdf2f8 0%, #fce7f3 100%);
    border-color: #f9a8d4;
    text-align: center;
}

.bsc-size-display {
    font-size: 2.75rem;
    font-weight: 800;
    color: var(--bsc-primary);
    letter-spacing: -0.02em;
    margin: 8px 0;
}

.bsc-note {
    font-size: 0.85rem;
    color: var(--bsc-muted);
    margin: 0;
}

/* Sister sizes */
.bsc-sister-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 8px;
}

.bsc-sister-item {
    background: #fff;
    border: 2px solid var(--bsc-border);
    border-radius: 8px;
    padding: 10px 16px;
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--bsc-text);
}

.bsc-sister-item span {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--bsc-muted);
    margin-top: 2px;
}

/* Table */
.bsc-table-wrap {
    overflow-x: auto;
}

.bsc-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.bsc-table th,
.bsc-table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--bsc-border);
}

.bsc-table th {
    font-weight: 600;
    color: var(--bsc-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.bsc-table tbody tr:last-child td {
    border-bottom: none;
}

/* Styles list */
#bsc-styles-list {
    margin: 0;
    padding-left: 20px;
}

#bsc-styles-list li {
    margin-bottom: 6px;
}

/* Fit checklist */
.bsc-fit-checklist ul {
    margin: 0;
    padding-left: 20px;
    font-size: 0.9rem;
}

.bsc-fit-checklist li {
    margin-bottom: 6px;
}

/* Privacy */
.bsc-privacy {
    text-align: center;
    font-size: 0.8rem;
    color: var(--bsc-muted);
    margin: 16px 0 0;
}

/* Error state */
.bsc-error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #b91c1c;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 520px) {
    .bsc-wrapper {
        padding: 16px;
    }

    .bsc-title {
        font-size: 1.4rem;
    }

    .bsc-shapes {
        grid-template-columns: 1fr;
    }

    .bsc-size-display {
        font-size: 2.25rem;
    }
}