:root {
    --color-main: #2c3e50;
    --color-accent: #3498db;
    --color-secondary: #74b9ff;
    --color-light: #ecf0f1;
    --color-dark: #34495e;
    --color-text: #2c3e50;
    --color-white: #ffffff;
    --color-gray: #7f8c8d;
    --color-purple: #667eea;
    --color-purple-dark: #764ba2;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    background: #f5f5f5;
    min-height: 100vh;
}

.auto-width-card {
    width: fit-content;
}

/* анимации для карточек товаров */
.product-card {
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-5px);
}

/* стили для прогресс-баров */
.progress {
    height: 8px;
}

/* стили для модального окна */
.modal::backdrop {
    background: rgba(0, 0, 0, 0.6);
    animation: fadeIn 0.3s ease;
}

.modal {
    border: none;
    border-radius: 12px;
    padding: 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s ease;
    max-width: 500px;
    width: 90vw;
    max-height: 90vh;
    overflow-y: auto;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    margin: 0;
}

#contactModal {
    border: none; 
    border-radius: 16px;
    padding: 0; 
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3); 
    max-width: 600px;
    width: 95vw;
    overflow: hidden;
}

.modal-header {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
    padding: 1.5rem;
    margin: 0;
}

.modal-header h2 {
    margin: 0;
    color: white;
    font-size: 1.5rem;
}

.modal-content {
    padding: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #2c3e50;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e9ecef;
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    box-sizing: border-box;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s ease;
    font-weight: 600;
}

.btn-primary {
    background: linear-gradient(#667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #f8f9fa;
    color: #2c3e50;
    border: 2px solid #e9ecef;
}

.btn-secondary:hover {
    background: #e9ecef;
}

.required {
    color: #e74c3c;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* темная тема */
[data-theme="dark"] {
    --color-white: #2c3e50;
    --color-text: #f8f9fa;
    --color-light: #34495e;
    --color-main: #f8f9fa;
    --color-dark: #1a252f;
    --color-gray: #e9ecef;
    
    background: #1a252f;
    color: #f8f9fa;
}

[data-theme="dark"] body {
    color: #f8f9fa;
}

[data-theme="dark"] .text-dark {
    color: #f8f9fa !important;
}

[data-theme="dark"] .text-muted {
    color: #e9ecef !important;
}

[data-theme="dark"] .text-primary {
    color: #a8d8ff !important;
}

[data-theme="dark"] .text-secondary {
    color: #e9ecef !important;
}

/* карточки */
[data-theme="dark"] .card {
    background-color: #34495e;
    border-color: #2c3e50;
    color: #f8f9fa;
}

[data-theme="dark"] .card-body {
    color: #f8f9fa;
}

[data-theme="dark"] .card-text {
    color: #f8f9fa;
}

[data-theme="dark"] .card-title {
    color: #f8f9fa;
}

[data-theme="dark"] .card-header {
    background-color: #2c3e50 !important;
    color: #f8f9fa;
    border-bottom-color: #34495e;
}

/* хэдер */
[data-theme="dark"] .bg-light {
    background-color: #2c3e50 !important;
}

[data-theme="dark"] .bg-light.text-dark {
    color: #f8f9fa !important;
}

/* навигация */
[data-theme="dark"] .navbar-dark {
    background-color: #1a252f !important;
}

[data-theme="dark"] .navbar-dark .navbar-nav .nav-link {
    color: #f8f9fa;
}

[data-theme="dark"] .navbar-dark .navbar-nav .nav-link.active {
    color: #ffffff;
    background-color: rgba(248, 249, 250, 0.2);
}

/* футер */
[data-theme="dark"] .bg-secondary {
    background-color: #495057 !important;
}

[data-theme="dark"] .bg-secondary.text-white {
    color: #f8f9fa !important;
}

/* кнопки */
[data-theme="dark"] .btn-dark {
    background-color: #e9ecef !important;
    border-color: #e9ecef !important;
    color: #2c3e50 !important;
}

[data-theme="dark"] .btn-primary {
    background: linear-gradient(#8ba6f0 0%, #9d7ac2 100%) !important;
    color: #1a252f !important;
}

/* бейджи */
[data-theme="dark"] .badge {
    color: #1a252f;
}

/* прогресс-бары */
[data-theme="dark"] .progress {
    background-color: #2c3e50;
}

/* модальное окно */
[data-theme="dark"] .modal-header {
    background: linear-gradient(135deg, #1a252f 0%, #2c3e50 100%);
}

[data-theme="dark"] .form-group label {
    color: #f8f9fa;
}

[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group select,
[data-theme="dark"] .form-group textarea {
    background-color: #34495e;
    border-color: #495057;
    color: #f8f9fa;
}

[data-theme="dark"] .form-group input:focus,
[data-theme="dark"] .form-group select:focus,
[data-theme="dark"] .form-group textarea:focus {
    border-color: #a8d8ff;
}

[data-theme="dark"] .btn-secondary {
    background: #34495e;
    color: #f8f9fa;
    border-color: #2c3e50;
}

[data-theme="dark"] .btn-secondary:hover {
    background: #2c3e50;
}

[data-theme="dark"] #contactModal {
    background-color: #374151; 
    color: #f3f4f6;
}

[data-theme="dark"] .modal-content {
    background-color: #4b5563; 
    color: #f3f4f6; 
}

[data-theme="dark"] .modal-header {
    background: linear-gradient(135deg, #1f2937 0%, #374151 100%);
    color: #f3f4f6;
    border-bottom: 1px solid #6b7280;
}

[data-theme="dark"] .form-group label {
    color: #f3f4f6;
    font-weight: 600;
}

[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group select,
[data-theme="dark"] .form-group textarea {
    background-color: #6b7280; 
    border-color: #9ca3af;
    color: #f3f4f6; 
}

[data-theme="dark"] .form-group input:focus,
[data-theme="dark"] .form-group select:focus,
[data-theme="dark"] .form-group textarea:focus {
    background-color: #6b7280;
    border-color: #93c5fd;
    color: #f3f4f6;
    box-shadow: 0 0 0 0.2rem rgba(147, 197, 253, 0.25);
}

[data-theme="dark"] .form-group input::placeholder,
[data-theme="dark"] .form-group textarea::placeholder {
    color: #d1d5db;
    opacity: 0.7;
}

[data-theme="dark"] .required {
    color: #f87171;
}

[data-theme="dark"] .btn-secondary {
    background-color: #6b7280;
    border-color: #6b7280;
    color: #f3f4f6;
}

[data-theme="dark"] .btn-secondary:hover {
    background-color: #4b5563;
    border-color: #4b5563;
    color: #f3f4f6;
}

/* адаптивность */
@media (max-width: 768px) {
    .auto-width-card {
        width: 100% !important;
    }
}

@media (max-width: 600px) {
    .modal {
        margin: 1rem;
        width: calc(100vw - 2rem);
    }

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

    .btn {
        width: 100%;
    }
}