/* Echo Run - Основные стили */

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

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    color: #ffffff;
    min-height: 100vh;
    line-height: 1.6;
}

.wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.header {
    text-align: center;
    margin-bottom: 40px;
}

.title {
    font-size: 4rem;
    font-weight: bold;
    color: #4a90e2;
    text-shadow: 0 0 20px rgba(74, 144, 226, 0.5);
    margin-bottom: 10px;
}

.subtitle {
    font-size: 1.2rem;
    color: #a0a0a0;
    margin-bottom: 30px;
}

.menu {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(45deg, #4a90e2, #357abd);
    color: white;
    box-shadow: 0 4px 15px rgba(74, 144, 226, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.main {
    flex: 1;
}

.about {
    background: rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.about h2 {
    color: #4a90e2;
    margin-bottom: 20px;
    font-size: 2rem;
}

.about p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    color: #e0e0e0;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.feature {
    background: rgba(255, 255, 255, 0.05);
    padding: 20px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.feature h3 {
    color: #4a90e2;
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.feature p {
    color: #c0c0c0;
    font-size: 0.95rem;
}

.footer {
    text-align: center;
    margin-top: 40px;
    padding: 20px;
    color: #a0a0a0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Модальные окна */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
}

.modal-content {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    margin: 5% auto;
    padding: 30px;
    border-radius: 15px;
    width: 90%;
    max-width: 600px;
    border: 1px solid rgba(74, 144, 226, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
}

.close:hover {
    color: #4a90e2;
}

.modal h2 {
    color: #4a90e2;
    margin-bottom: 20px;
}

.help-content h3 {
    color: #4a90e2;
    margin: 20px 0 10px 0;
}

.help-content ul {
    margin-left: 20px;
    margin-bottom: 15px;
}

.help-content li {
    margin-bottom: 5px;
    color: #e0e0e0;
}

/* Адаптивность */
@media (max-width: 768px) {
    .title {
        font-size: 2.5rem;
    }
    
    .menu {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 200px;
    }
    
    .features {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        margin: 10% auto;
        width: 95%;
        padding: 20px;
    }
}