/* Form styles */
.calculator-step {
    padding: 32px;
}

.calculator-step h2 {
    font-size: 1.5rem;
    margin-bottom: 24px;
    color: var(--text);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 0.9375rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    background: var(--surface);
    transition: border-color var(--transition);
    min-height: 48px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(43, 122, 75, 0.1);
}

.form-group input[aria-invalid="true"],
.form-group select[aria-invalid="true"],
.form-group textarea[aria-invalid="true"] {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.error-message {
    color: var(--danger);
    font-size: 0.875rem;
    margin-top: 4px;
    font-weight: 500;
}

.radio-card-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.radio-card {
    display: block;
    position: relative;
}

.radio-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
    z-index: 2;
}

.radio-card-label {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
    font-weight: 500;
}

.radio-card input[type="radio"]:checked + .radio-card-label {
    border-color: var(--primary);
    background: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(43, 122, 75, 0.1);
}

.radio-card input[type="radio"]:focus-visible + .radio-card-label {
    outline: 3px solid var(--primary);
    outline-offset: 2px;
}

.radio-card-label svg {
    flex-shrink: 0;
}

.unit-toggle {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.unit-toggle button {
    padding: 8px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface);
    font-weight: 500;
    transition: all var(--transition);
}

.unit-toggle button.active {
    border-color: var(--primary);
    background: var(--primary-light);
    color: var(--primary);
}

.height-inputs {
    display: flex;
    gap: 12px;
}

.height-inputs .form-group {
    flex: 1;
}

.progress-indicator {
    display: flex;
    gap: 8px;
    padding: 16px 32px;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}

.progress-step {
    flex: 1;
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
}

.progress-step.active {
    background: var(--primary);
}

.progress-step.completed {
    background: var(--success);
}

.calculator-nav {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 24px 32px;
    border-top: 1px solid var(--border);
    background: var(--surface);
    flex-wrap: wrap;
}

.calculator-nav .btn {
    min-width: 120px;
}

.btn-back {
    background: transparent;
    color: var(--muted);
    border: 2px solid var(--border);
}

.btn-back:hover,
.btn-back:focus-visible {
    background: var(--border);
    color: var(--text);
}

.btn-calculate {
    background: var(--primary);
    color: #fff;
    border: 2px solid var(--primary);
}

.btn-calculate:hover,
.btn-calculate:focus-visible {
    background: var(--primary-dark);
}

.btn-reset {
    background: transparent;
    color: var(--danger);
    border: 2px solid var(--danger);
}

.btn-reset:hover,
.btn-reset:focus-visible {
    background: rgba(239, 68, 68, 0.1);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}