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

/* Основные переменные */
:root {
    --primary-color: #2563eb;
    --secondary-color: #7c3aed;
    --accent-color: #059669;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-card: #ffffff;
    
    --border-color: #e5e7eb;
    --border-radius: 12px;
    --border-radius-small: 8px;
    
    --shadow-small: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-large: 0 10px 15px rgba(0, 0, 0, 0.1);
    
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 30px;
    
    --transition: all 0.3s ease;
}

/* Базовые стили */
body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: white;
    background: #111111;
    min-height: 100vh;
}

a{
    /*color: #003de1;*/
    color: inherit;
    text-decoration: none;
    cursor: pointer;
}

.container {
    /*max-width: 1500px;*/
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Шапка и навигация */
.header {
    background: #202938;
    box-shadow: var(--shadow-medium);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
}

.logo h2 {
    color: var(--primary-color);
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-small);
    transition: var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    background: rgba(37, 99, 235, 0.1);
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
    left: 0;
}

/* Мобильное меню */
.menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.menu-toggle span {
    width: 24px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition);
    border-radius: 2px;
}

/* Основной контент */
.main {
    padding: var(--spacing-2xl) 0;
}

/* Секция приветствия */
.hero {
    text-align: center;
    padding: var(--spacing-2xl) 0;
    margin-bottom: var(--spacing-2xl);
}

.hero-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-btn {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
    transform: translateY(0);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.hero-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
}

/* Секции */
.section {
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: white;
    margin-bottom: var(--spacing-xl);
    text-align: center;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

/* Формы */
.forms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
}

.form-card {
    background: #202938;
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-large);
    border: 1px solid #384152;
    transition: var(--transition);
}

.form-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 25px rgba(0, 0, 0, 0.1);
}

.form-card h3 {
    color: white;
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.input-group label {
    font-weight: 500;
    color: white;
    font-size: var(--font-size-sm);
}

.input-group input,
.input-group select,
.input-group textarea {
    color: white;
    padding: var(--spacing-md);
    border: 2px solid #384152;
    border-radius: var(--border-radius-small);
    font-size: var(--font-size-base);
    transition: var(--transition);
    background: #202938;
}

.input-group input:focus,
.input-group select:focus,
.input-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.input-group input:hover,
.input-group select:hover,
.input-group textarea:hover {
    border-color: var(--primary-color);
}

.checkbox-group,
.radio-group {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    margin: var(--spacing-md) 0;
}

.radio-group {
    flex-direction: column;
    align-items: flex-start;
}

.radio-group p {
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    padding: var(--spacing-xs);
}

/* Кнопки */
.btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius-small);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #1d4ed8, #6d28d9);
    transform: translateY(-1px);
    box-shadow: var(--shadow-medium);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-color);
}

.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-success:hover {
    background: #059669;
}

.button-group {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
    margin-top: var(--spacing-md);
}

.btn-icon {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: var(--border-radius-small);
    cursor: pointer;
    transition: var(--transition);
    /*display: flex;*/
    align-items: center;
    justify-content: center;
    margin: 0 var(--spacing-xs);
}

.btn-edit {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary-color);
}

.btn-edit:hover {
    background: rgba(59, 130, 246, 0.2);
}

.btn-delete {
    background: rgb(255 226 226 / 10%);
    color: #ffffff;
}

.btn-delete:hover {
    background: rgba(239, 68, 68, 0.2);
}

/* Данные */
.data-grid {
    display: grid;
    gap: var(--spacing-xl);
}

.data-card {
    background: #202938;
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-large);
    border: 1px solid #384152;
}

.data-card h3 {
    color: white;
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-xl);
    font-weight: 600;
}

/* Таблица */
.table-container {
    overflow-x: auto;
    border-radius: var(--border-radius-small);
    border: 1px solid #384152;
}

.table {
    width: 100%;
    border-collapse: collapse;
    background: #202938;
}

table tbody{background: #202938;}

.table th,
.table td {
    padding: 16px 10px;
    text-align: left;
    border-bottom: 1px solid #384152;
}

.table th {
    background: #384152;
    font-weight: 600;
    color: white;
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table tr:hover {
    background: rgba(37, 99, 235, 0.05);
}

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

/* Бейджи и статусы */
.badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
}

.badge-secondary {
    background: rgba(124, 58, 237, 0.1);
    color: var(--secondary-color);
}

.badge-tertiary {
    background: rgba(156, 163, 175, 0.2);
    color: var(--text-secondary);
}

.status {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.status-active {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.status-inactive {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
}

/* Списки */
.list-section {
    margin-bottom: var(--spacing-xl);
}

.list-section:last-child {
    margin-bottom: 0;
}

.list-section h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.task-list {
    list-style: none;
}

.task-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-small);
    transition: var(--transition);
    cursor: pointer;
}

.task-item:hover {
    background: rgba(37, 99, 235, 0.05);
}

.task-item.completed .task-text {
    text-decoration: line-through;
    color: var(--text-light);
}

.task-checkbox {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    transition: var(--transition);
}

.task-item.completed .task-checkbox {
    background: var(--success-color);
    border-color: var(--success-color);
    color: white;
}

.task-text {
    flex: 1;
    font-weight: 500;
}

.task-priority {
    padding: 2px var(--spacing-sm);
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.priority-high {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
}

.priority-medium {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.priority-low {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.tech-list {
    padding-left: var(--spacing-lg);
}

.tech-list li {
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    position: relative;
}

.tech-list li::marker {
    color: var(--primary-color);
    font-weight: 700;
}

/* О проекте */
.about-content {
    display: grid;
    gap: var(--spacing-xl);
}

.about-text {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
    border: 1px solid var(--border-color);
}

.about-text p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    line-height: 1.7;
}

.about-text p:last-child {
    margin-bottom: 0;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.feature-item {
    background: var(--bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: var(--transition);
}

.feature-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-large);
}

.feature-item h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-lg);
}

.feature-item p {
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Подвал */
.footer {
    background: var(--text-primary);
    color: white;
    text-align: center;
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-2xl);
}

.footer p {
    font-size: var(--font-size-lg);
    font-weight: 500;
}

/* Анимации */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-card,
.data-card,
.feature-item {
    animation: fadeInUp 0.6s ease-out;
}

/* Range input стили */
input[type="range"] {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: var(--border-color);
    outline: none;
    margin: var(--spacing-sm) 0;
}

input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    box-shadow: var(--shadow-small);
}

input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    border: none;
    box-shadow: var(--shadow-small);
}

/* Checkbox и radio стили */
input[type="checkbox"],
input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color);
    cursor: pointer;
}

/* Select multiple стили */
select[multiple] {
    min-height: 120px;
}

select[multiple] option:checked {
    background: var(--primary-color);
}

/* Адаптивность */
@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .nav.active {
        display: block;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        box-shadow: var(--shadow-large);
    }
    
    .nav.active .nav-list {
        flex-direction: column;
        padding: var(--spacing-md);
    }
    
    .forms-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: var(--font-size-2xl);
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .button-group {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .table-container {
        font-size: var(--font-size-sm);
    }
    
    .table th,
    .table td {
        padding: var(--spacing-sm);
    }
    
    .hero {
        padding: var(--spacing-lg) 0;
    }
    
    .form-card,
    .data-card {
        padding: var(--spacing-lg);
    }
}

/* Дополнительные hover эффекты */
.task-item:hover .task-checkbox {
    border-color: var(--primary-color);
    background: rgba(37, 99, 235, 0.1);
}

/*.table tr:hover .btn-icon {
    opacity: 1;
    transform: scale(1.1);
}*/

.btn-icon {
    opacity: 0.7;
    transition: var(--transition);
}

/* Плавная прокрутка */
html {
    scroll-behavior: smooth;
}

/* Улучшенные focus стили для доступности */
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}