/* ========================================
   FORM STYLES
   ======================================== */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    font-size: var(--font-size-base);
    font-family: var(--font-family-base);
    color: var(--color-text-primary);
    background-color: var(--color-bg-white);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-control:disabled {
    background-color: var(--color-bg-light);
    cursor: not-allowed;
}

.form-control.error {
    border-color: var(--color-error);
}

.form-error {
    display: block;
    margin-top: 4px;
    font-size: var(--font-size-sm);
    color: var(--color-error);
}

.form-help {
    display: block;
    margin-top: 4px;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* Select */
select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23333' d='M10.293 3.293L6 7.586 1.707 3.293A1 1 0 00.293 4.707l5 5a1 1 0 001.414 0l5-5a1 1 0 10-1.414-1.414z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.form-check-input {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.form-check-label {
    cursor: pointer;
    user-select: none;
}

/* Radio Group */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.radio-option {
    display: flex;
    align-items: center;
    padding: 16px;
    background-color: var(--color-bg-light);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.radio-option:hover {
    background-color: var(--color-bg-white);
    border-color: var(--color-primary);
}

.radio-option input[type="radio"] {
    margin-right: 12px;
}

.radio-option.selected {
    background-color: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-text-white);
}

/* ========================================
   MULTI-STEP FORM
   ======================================== */
.multi-step-form {
    max-width: 800px;
    margin: 0 auto;
}

.form-steps {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
    position: relative;
}

.form-steps::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--color-border);
    z-index: 0;
}

.form-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    position: relative;
    z-index: 1;
}

.step-circle {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-bg-white);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
}

.form-step.active .step-circle {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text-white);
}

.form-step.completed .step-circle {
    background-color: var(--color-success);
    border-color: var(--color-success);
    color: var(--color-text-white);
}

.step-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-align: center;
}

.form-step.active .step-label {
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
}

.form-content {
    background-color: var(--color-bg-white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.form-section {
    display: none;
}

.form-section.active {
    display: block;
    animation: fadeIn 0.3s ease-in;
}

.form-section-title {
    font-size: var(--font-size-2xl);
    margin-bottom: 24px;
}

.form-actions {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 32px;
}

.btn-prev,
.btn-next {
    padding: 12px 32px;
}

/* ========================================
   COMPARISON RESULTS
   ======================================== */
.comparison-results {
    margin-top: 40px;
}

.result-card {
    background-color: var(--color-bg-white);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 20px;
    transition: all var(--transition-base);
}

.result-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--color-border-light);
}

.result-logo {
    max-width: 150px;
    height: auto;
}

.result-price {
    text-align: right;
}

.price-amount {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
}

.price-period {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.result-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: var(--font-size-sm);
}

.feature-icon {
    width: 20px;
    height: 20px;
    color: var(--color-success);
}

.result-actions {
    display: flex;
    gap: 12px;
}

.btn-details {
    flex: 1;
}

.btn-select {
    flex: 2;
}

/* ========================================
   LOADING STATES
   ======================================== */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--color-border);
    border-radius: var(--radius-full);
    border-top-color: var(--color-primary);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.form-loading {
    display: none;
    text-align: center;
    padding: 40px;
}

.form-loading.active {
    display: block;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    border: 4px solid var(--color-border);
    border-radius: var(--radius-full);
    border-top-color: var(--color-primary);
    animation: spin 1s linear infinite;
}

.loading-text {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
}

/* ========================================
   RESPONSIVE FORMS
   ======================================== */
@media (max-width: 768px) {
    .form-content {
        padding: 24px;
    }

    .form-steps {
        flex-wrap: wrap;
        gap: 16px;
    }

    .form-steps::before {
        display: none;
    }

    .result-header {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .result-price {
        text-align: center;
    }

    .result-features {
        grid-template-columns: 1fr;
    }

    .result-actions {
        flex-direction: column;
    }

    .form-actions {
        flex-direction: column-reverse;
    }

    .btn-prev,
    .btn-next {
        width: 100%;
    }
}