:root {
    --primary: #2c3e50;
    --secondary: #3a7bd5;
    --accent: #00d2ff;
    --dark: #2c2c2c;
    --light: #f8f9fa;
    --success: #3CB371;
    --warning: #FFA500;
    --danger: #FF4500;
    --text: #333;
    --text-light: #777;
    --white: #ffffff;
    --shadow: 0 4px 12px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Roboto', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background-color: var(--light);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Шапка */
.main-header {
    background-color: var(--dark);
    color: var(--white);
    padding: 25px 0;
    text-align: center;
    box-shadow: var(--shadow);
    position: relative;
}

.logo {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
    margin-bottom: 10px;
}

.logo:hover {
    color: var(--accent);
}

.tagline {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.8);
    margin-top: 10px;
}

/* Навигация */
.main-nav {
    background-color: var(--primary);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.main-nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
    gap: 30px;
    flex-wrap: wrap;
    margin: 0;
    padding: 0;
}

.main-nav a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    padding: 8px 15px;
    border-radius: 4px;
    transition: var(--transition);
    font-size: 1.05rem;
}

.main-nav a:hover, 
.main-nav a.active {
    background-color: var(--accent);
    color: var(--dark);
}

/* Вторая навигация */
.secondary-nav {
    background-color: var(--secondary);
    padding: 12px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.secondary-nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
    gap: 15px;
    flex-wrap: wrap;
    margin: 0;
    padding: 0;
}

.secondary-nav a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    padding: 8px 15px;
    border-radius: 4px;
    transition: var(--transition);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.secondary-nav a:hover {
    background-color: rgba(255,255,255,0.2);
}

.secondary-nav a.active {
    background-color: rgba(0,0,0,0.2);
}

.secondary-nav i {
    font-size: 1rem;
}

/* hero-секция */
.hero-section {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    animation: fadeInDown 1s ease;
}

.hero-text {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 30px;
    animation: fadeIn 1.5s ease;
}

/* Кнопки */
.cta-button {
    display: inline-block;
    background-color: var(--accent);
    color: var(--white);
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(0, 210, 255, 0.3);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 210, 255, 0.4);
    background-color: #00b8e6;
}

.cta-button.secondary {
    background-color: var(--text-light);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    margin-top: 15px;
}

.cta-button.secondary:hover {
    background-color: var(--text);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* Основное содержимое */
.main-content {
    flex: 1;
    padding: 40px 0;
}

/* Секции */
.section-title {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2rem;
    color: var(--primary);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, var(--accent), var(--secondary));
    margin: 15px auto 0;
}

/* Карточки услуг */
.trade-section {
    margin-bottom: 60px;
}

.trade-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.trade-card {
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 30px;
    transition: var(--transition);
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
}

.trade-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.trade-icon {
    font-size: 3rem;
    color: var(--accent);
    margin-bottom: 20px;
}

.trade-card h3 {
    margin-bottom: 15px;
    color: var(--secondary);
}

.trade-card p {
    margin-bottom: 20px;
    color: var(--text-light);
}

.external-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--secondary);
    text-decoration: none;
    margin-top: 15px;
    transition: var(--transition);
    font-size: 0.9rem;
}

.external-link:hover {
    color: var(--primary);
    text-decoration: underline;
}

/* Форма */
.contact-form {
    background-color: var(--white);
    padding: 40px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    max-width: 800px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 210, 255, 0.2);
}
/* <!-- Футер --> */
.main-footer {
    background-color: var(--dark);
    color: var(--white);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--white);
    position: relative;
    padding-bottom: 10px;
}

.footer-col h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 50px;
    height: 2px;
    background-color: var(--accent);
}

.contact-list,
.social-list,
.nav-list {
    list-style: none;
}

.contact-list li,
.social-list li,
.nav-list li {
    margin-bottom: 12px;
}

.contact-list a,
.social-list a,
.nav-list a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.contact-list a:hover,
.social-list a:hover,
.nav-list a:hover {
    color: var(--accent);
}

.contact-list i,
.social-list i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
    color: var(--accent);
}

.footer-bottom {
    text-align: center;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

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

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Адаптивность */
@media (max-width: 768px) {
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .hero-text {
        font-size: 1rem;
    }
    
    .main-nav ul {
        gap: 10px;
    }
    
    .secondary-nav ul {
        gap: 8px;
    }
    
    .secondary-nav a {
        padding: 6px 10px;
        font-size: 0.85rem;
    }
    
    .trade-cards {
        grid-template-columns: 1fr;
    }
    
    .contact-section {
        padding: 25px;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .cta-button.secondary {
        margin-top: 0;
    }
}

@media (max-width: 480px) {
    .main-nav ul {
        flex-direction: column;
        align-items: center;
        gap: 5px;
    }
    
    .secondary-nav ul {
        flex-direction: column;
        align-items: center;
    }
    
    .trade-card {
        padding: 20px;
    }
    
    .contact-section {
        padding: 20px 15px;
    }
}