/* ============================================
   Modal Styles - Модальные окна
   ============================================ */

/* Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    padding: var(--spacing-2);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Modal Container */
.modal {
    position: relative;
    background-color: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    max-width: 480px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(20px);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

/* Modal Header */
.modal__header {
    padding: var(--spacing-3) var(--spacing-4);
    border-bottom: 1px solid var(--color-border);
    position: relative;
}

.modal__title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin: 0;
}

.modal__subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-top: var(--spacing-1);
}

.modal__close {
    position: absolute;
    top: var(--spacing-3);
    right: var(--spacing-3);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.modal__close:hover {
    background-color: var(--color-bg-light);
    color: var(--color-text-primary);
}

.modal__close svg {
    width: 20px;
    height: 20px;
}

/* Modal Body */
.modal__body {
    padding: var(--spacing-3) var(--spacing-4);
    min-height: 400px;
}

/* Tabs for Login/Register */
.auth-tabs {
    display: flex;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-4);
}

.auth-tab {
    flex: 1;
    padding: var(--spacing-2);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.auth-tab:hover {
    color: var(--color-primary);
}

.auth-tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* Forms */
.auth-form {
    display: none;
    animation: fadeIn 0.3s ease;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-group {
    margin-bottom: var(--spacing-2-5);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-1);
}

.form-label--required::after {
    content: '*';
    color: var(--color-error);
    margin-left: 4px;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    transition: all var(--transition-fast);
    background-color: white;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 91, 255, 0.1);
}

.form-input::placeholder {
    color: var(--color-text-light);
}

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

.form-error {
    display: none;
    font-size: var(--font-size-xs);
    color: var(--color-error);
    margin-top: var(--spacing-1);
}

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

/* Checkbox */
.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-1-5);
    margin-bottom: var(--spacing-3);
}

.form-checkbox input[type="checkbox"] {
    margin-top: 2px;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.form-checkbox label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    cursor: pointer;
    line-height: 1.5;
}

.form-checkbox label a {
    color: var(--color-primary);
    text-decoration: none;
}

.form-checkbox label a:hover {
    text-decoration: underline;
}

/* Submit Button */
.form-submit {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--color-primary), #0051d5);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 12px rgba(0, 91, 255, 0.2);
}

.form-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(0, 91, 255, 0.3);
}

.form-submit:active {
    transform: translateY(0);
}

.form-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Divider */
.auth-divider {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    margin: var(--spacing-4) 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background-color: var(--color-border);
}

/* Social Auth */
.social-auth {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: 12px;
    background-color: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.social-btn:hover {
    background-color: var(--color-bg-light);
    border-color: var(--color-primary);
}

.social-btn svg {
    width: 20px;
    height: 20px;
}

/* Password Input Wrapper */
.password-input-wrapper {
    position: relative;
}

.password-input-wrapper .form-input {
    padding-right: 44px;
}

.password-toggle {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast);
    border-radius: var(--radius-sm);
}

.password-toggle:hover {
    color: var(--color-primary);
    background-color: var(--color-bg-light);
}

.password-toggle svg {
    width: 20px;
    height: 20px;
}

/* Forgot Password Link */
.forgot-password {
    text-align: right;
    margin-top: var(--spacing-1);
}

.forgot-password a {
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.forgot-password a:hover {
    text-decoration: underline;
}

/* Role Selection */
.role-selection {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.role-option {
    cursor: pointer;
}

.role-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.role-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-2-5);
    padding: var(--spacing-2-5);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: white;
    transition: all var(--transition-fast);
}

.role-option:hover .role-card {
    border-color: var(--color-primary);
    background-color: rgba(0, 91, 255, 0.02);
}

.role-option input[type="radio"]:checked + .role-card {
    border-color: var(--color-primary);
    background-color: rgba(0, 91, 255, 0.05);
    box-shadow: 0 0 0 3px rgba(0, 91, 255, 0.1);
}

.role-icon {
    width: 40px;
    height: 40px;
    padding: 8px;
    background-color: rgba(0, 91, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    flex-shrink: 0;
}

.role-option input[type="radio"]:checked + .role-card .role-icon {
    background-color: var(--color-primary);
    color: white;
}

.role-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.role-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

.role-description {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* Seller Type Selection */
.seller-fields {
    animation: fadeIn 0.3s ease;
}

.seller-type-selection {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1-5);
}

.seller-type-option {
    cursor: pointer;
}

.seller-type-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.seller-type-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: 12px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: white;
    transition: all var(--transition-fast);
}

.seller-type-option:hover .seller-type-card {
    border-color: var(--color-primary);
    background-color: rgba(0, 91, 255, 0.02);
}

.seller-type-option input[type="radio"]:checked + .seller-type-card {
    border-color: var(--color-primary);
    background-color: rgba(0, 91, 255, 0.05);
    box-shadow: 0 0 0 3px rgba(0, 91, 255, 0.1);
}

.seller-type-icon {
    width: 32px;
    height: 32px;
    padding: 6px;
    background-color: rgba(0, 91, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    flex-shrink: 0;
}

.seller-type-option input[type="radio"]:checked + .seller-type-card .seller-type-icon {
    background-color: var(--color-primary);
    color: white;
}

.seller-type-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.seller-type-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

.seller-type-description {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

/* Responsive */
@media (max-width: 480px) {
    .modal {
        max-width: 100%;
        border-radius: var(--radius-lg);
    }

    .modal__header {
        padding: var(--spacing-3);
    }

    .modal__body {
        padding: var(--spacing-3);
    }

    .modal__title {
        font-size: var(--font-size-xl);
    }

    .role-card {
        padding: var(--spacing-2);
        gap: var(--spacing-2);
    }

    .role-icon {
        width: 36px;
        height: 36px;
    }
}