/* CSS переменные для тем */

/* Светлая тема (по умолчанию) */
:root {
    --primary-color: #007bff;
    --primary-hover: #0056b3;
    --bg-color: #ffffff;
    --header-bg: #ffffff;
    --card-bg: #ffffff;
    --input-bg: #ffffff;
    --footer-bg: #f8f9fa;
    --text-color: #333333;
    --text-secondary: #666666;
    --border-color: #e0e0e0;
    --hover-bg: #f8f9fa;
    --hero-bg: #f8f9fa;
    --hero-bg-secondary: #e9ecef;
    --success-color: #28a745;
    --error-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
}

/* Темная тема */
[data-theme="dark"] {
    --primary-color: #00d4ff;
    --primary-hover: #00b8e6;
    --bg-color: #0a0a0a;
    --header-bg: #1a1a1a;
    --card-bg: #1a1a1a;
    --input-bg: #2a2a2a;
    --footer-bg: #1a1a1a;
    --text-color: #ffffff;
    --text-secondary: #cccccc;
    --border-color: #333333;
    --hover-bg: #2a2a2a;
    --hero-bg: #1a1a1a;
    --hero-bg-secondary: #2a2a2a;
    --success-color: #28a745;
    --error-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
}

/* Дополнительные стили для темной темы */
[data-theme="dark"] .auth-card {
    background-color: #1a1a1a;
    border: 1px solid #333333;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] .auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 12px;
    padding: 2px;
    background: linear-gradient(45deg, #00d4ff, #0099cc);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    pointer-events: none;
}

[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group textarea {
    background-color: #2a2a2a;
    border-color: #333333;
    color: #ffffff;
}

[data-theme="dark"] .form-group input:focus,
[data-theme="dark"] .form-group textarea:focus {
    border-color: #00d4ff;
    box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.2);
}

[data-theme="dark"] .btn-primary {
    background: linear-gradient(45deg, #00d4ff, #0099cc);
    border: none;
}

[data-theme="dark"] .btn-primary:hover {
    background: linear-gradient(45deg, #00b8e6, #0088b3);
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.3);
}

[data-theme="dark"] .btn-secondary {
    border-color: #00d4ff;
    color: #00d4ff;
}

[data-theme="dark"] .btn-secondary:hover {
    background-color: #00d4ff;
    color: #000000;
}

[data-theme="dark"] .error-message {
    background-color: rgba(220, 53, 69, 0.1);
    border: 1px solid rgba(220, 53, 69, 0.3);
    color: #ff6b6b;
}

[data-theme="dark"] .success-message {
    background-color: rgba(40, 167, 69, 0.1);
    border: 1px solid rgba(40, 167, 69, 0.3);
    color: #51cf66;
}

/* Стили для карточек в темной теме */
[data-theme="dark"] .about-card,
[data-theme="dark"] .service-card {
    background-color: #1a1a1a;
    border: 1px solid #333333;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] .about-card:hover,
[data-theme="dark"] .service-card:hover {
    border-color: #00d4ff;
    box-shadow: 0 8px 32px rgba(0, 212, 255, 0.2);
}

/* Стили для навигации в темной теме */
[data-theme="dark"] .nav-link {
    color: #ffffff;
}

[data-theme="dark"] .nav-link:hover {
    color: #00d4ff;
}

/* Стили для футера в темной теме */
[data-theme="dark"] .footer {
    background-color: #1a1a1a;
    border-top: 1px solid #333333;
}

[data-theme="dark"] .footer-section a {
    color: #cccccc;
}

[data-theme="dark"] .footer-section a:hover {
    color: #00d4ff;
}

/* Стили для форм в темной теме */
[data-theme="dark"] .contact-form input,
[data-theme="dark"] .contact-form textarea {
    background-color: #2a2a2a;
    border-color: #333333;
    color: #ffffff;
}

[data-theme="dark"] .contact-form input:focus,
[data-theme="dark"] .contact-form textarea:focus {
    border-color: #00d4ff;
    box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.2);
}

/* Анимации для переключения тем */
* {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* Специальные эффекты для темной темы */
[data-theme="dark"] .hero {
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
    position: relative;
}

[data-theme="dark"] .hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 80%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(0, 153, 204, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

[data-theme="dark"] .hero-content {
    position: relative;
    z-index: 1;
}

/* Стили для кнопки переключения темы */
.theme-toggle {
    position: relative;
    overflow: hidden;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    background-color: var(--hover-bg);
    transform: scale(1.1);
}

[data-theme="dark"] .theme-toggle i {
    color: #00d4ff;
}

[data-theme="dark"] .theme-toggle:hover {
    background-color: rgba(0, 212, 255, 0.1);
}

/* Стили для сообщений */
.error-message,
.success-message {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.error-message {
    background-color: rgba(220, 53, 69, 0.1);
    border: 1px solid rgba(220, 53, 69, 0.3);
    color: #dc3545;
}

.success-message {
    background-color: rgba(40, 167, 69, 0.1);
    border: 1px solid rgba(40, 167, 69, 0.3);
    color: #28a745;
    text-align: center;
    flex-direction: column;
    gap: 1rem;
}

.success-message i {
    font-size: 3rem;
    color: #28a745;
}

/* Стили для ссылок */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--primary-hover);
}

/* Стили для выделения текста */
::selection {
    background-color: var(--primary-color);
    color: white;
}

[data-theme="dark"] ::selection {
    background-color: #00d4ff;
    color: #000000;
}

/* Стили для кнопки success в светлой теме */
[data-theme="light"] .btn-success {
    background-color: #28a745;
    color: white;
    border: 2px solid #28a745;
}

[data-theme="light"] .btn-success:hover {
    background-color: #218838;
    border-color: #218838;
    color: white;
}

/* Стили для кнопки success в темной теме */
[data-theme="dark"] .btn-success {
    background-color: #28a745;
    color: white;
    border: 2px solid #28a745;
}

[data-theme="dark"] .btn-success:hover {
    background-color: #218838;
    border-color: #218838;
    color: white;
}