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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* ===== Анимированный фон ===== */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    overflow: hidden;
}

.background-animation .circle {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.15) 0%, rgba(118, 75, 162, 0.05) 100%);
    animation: float 20s infinite ease-in-out;
}

.background-animation .circle:nth-child(1) {
    width: 600px;
    height: 600px;
    top: -200px;
    left: -200px;
    animation-delay: 0s;
}

.background-animation .circle:nth-child(2) {
    width: 400px;
    height: 400px;
    bottom: -100px;
    right: -100px;
    animation-delay: -5s;
}

.background-animation .circle:nth-child(3) {
    width: 300px;
    height: 300px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(30px, -30px) scale(1.1);
    }
    50% {
        transform: translate(-20px, 20px) scale(0.9);
    }
    75% {
        transform: translate(20px, 30px) scale(1.05);
    }
}

/* ===== Контейнер ===== */
.site-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 1200px;
    padding: 2rem;
    text-align: center;
}

/* ===== Логотип ===== */
.logo {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
    color: #667eea;
    font-size: 2.5rem;
    font-weight: 900;
    text-decoration: none;
    letter-spacing: -1px;
}

.logo i {
    font-size: 3rem;
}

.logo span {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ===== Заголовок ===== */
.main-title {
    font-size: 4.5rem;
    font-weight: 900;
    color: #fff;
    margin-bottom: 1rem;
    letter-spacing: -2px;
    line-height: 1.1;
}

.main-title .highlight {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ===== Подзаголовок ===== */
.subtitle {
    font-size: 1.3rem;
    color: rgba(255,255,255,0.6);
    max-width: 600px;
    margin: 0 auto 2.5rem;
    line-height: 1.6;
    font-weight: 300;
}

/* ===== Кнопки ===== */
.buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.btn {
    padding: 0.9rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.6);
}

.btn-secondary {
    background: rgba(255,255,255,0.1);
    color: #fff;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-3px);
}

/* ===== Особенности ===== */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    max-width: 800px;
    margin: 0 auto;
}

.feature-item {
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 16px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.feature-item:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-5px);
}

.feature-item i {
    font-size: 2rem;
    color: #667eea;
    margin-bottom: 0.5rem;
}

.feature-item h4 {
    color: #fff;
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.feature-item p {
    color: rgba(255,255,255,0.4);
    font-size: 0.8rem;
    margin: 0;
}

/* ===== Автор ===== */
.footer-text {
    margin-top: 3rem;
    color: rgba(255,255,255,0.2);
    font-size: 0.85rem;
}

/* ===== Адаптивность ===== */
@media (max-width: 768px) {
    .main-title {
        font-size: 2.8rem;
    }
    
    .subtitle {
        font-size: 1rem;
        padding: 0 1rem;
    }
    
    .buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .logo {
        font-size: 2rem;
    }
    
    .features {
        grid-template-columns: 1fr;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .main-title {
        font-size: 2.2rem;
    }
    
    .site-container {
        padding: 1rem;
    }
}