* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Cascadia code";
}

:root {
    --bg-dark: #1c1b22;    
    --bg-darker: #111111;
    --bg-light: #dfd4ed;
    --primary-color: #1c1b22;
    --text-primary: #f0f0f0;
    --text-secondary: #b0b0c0;
    --border-color: #373643;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
}

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

.btn {
    display: inline-block;
    background: var(--bg-light);
    color: #13071d;
    padding: 14px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    border: none;
    cursor: pointer;
    font-size: 16px;
    transition: background 0.3s ease;
}

.btn:hover {
    background: var(--primary-color);
    color: var(--bg-light);
}

.btn-outline {
    
    border: none;
    color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--bg-light);
}

section {
    padding: 60px 0;
}

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

.section-title h2 {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 15px;
    font-weight: 700;
}

.section-title p {
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.1rem;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    backdrop-filter: blur(100px);
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-dark);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo i {
    margin-right: 10px;
    color: var(--primary-color);
}

.mobile-menu-btn {
    display: block;
    background: var(--primary-color);
    border-radius: 10px;
    border-width: 3px;
    border-color: var(--bg-light);
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    transition: background 0.3s ease;
    z-index: 1001;
}

.mobile-menu-btn span {
    display: block;
    width: 26px;        /* Ширина полосок (меньше кнопки) */
    height: 3px;        /* Толщина полосок */
    background: var(--bg-light);  /* Цвет полосок */      /* Центрируем по горизонтали */ /* Центрируем по горизонтали */
}
.mobile-menu-btn span:nth-child(1) {
    top: 4px;
    flex:auto;
    margin:4px;
}

.mobile-menu-btn span:nth-child(2) {
    top: 14px;
    flex:auto;
    margin:4px;
    margin-top: 5px;
}

.mobile-menu-btn span:nth-child(3) {
    top: 24px;
    flex:auto;
    margin:4px;
    margin-top: 5px;
}

nav {
    position: fixed;
    top: 70px;
    right: 0;
    width: 80%;
    max-width: 300px;
    height: calc(100vh - 70px);
    background: var(--bg-dark);
    border-left: 1px solid var(--border-color);
    transform: translateX(100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    overflow-y: auto;
}

nav.active {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
}

nav ul {
    display: flex;
    flex-direction: column;
    list-style: none;
    padding: 20px;
}

nav ul li {
    margin: 0;
    border-bottom: 1px solid var(--border-color);
}

nav ul li:last-child {
    border-bottom: none;
}

nav ul li a {
    display: block;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    padding: 15px 0;
    transition: color 0.3s ease;
}

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

.hero {
    height: 1vh;
    min-height: 700px;
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: 70px;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
    opacity: 0.4;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(30deg, rgba(191, 142, 255, 0.358), transparent);
    z-index: -1;
}

.hero-content {
    max-width: 100%;
    z-index: 2;
    padding: 0 20px;
}

.hero-content h1 {
    font-size: 2.3rem;
    margin-bottom: 20px;
    line-height: 1.2;
    font-weight: 700;
}

.hero-content p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    color: var(--text-secondary);
}

.hero-btns {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.slider-section {
    background-color: var(--bg-dark);
    padding: 60px 0;
}

.slider-container {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.slider {
    display: flex;
    transition: transform 0.3s ease;
}

.slide {
    min-width: 100%;
    position: relative;
}

.slide img {
    height: 300px;
    object-fit: cover;
    display: block;
    border-radius: 6px;
    width: 100%;
}

.slide-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, var(--bg-dark), transparent);
    padding: 18px;
}

.slide-caption {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.slide-caption h3 {
    font-size: 1.5rem;
    color: white;
    font-weight: 600;
}

.slider-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 35px;
    padding: 0 20px;
}

.slider-btn {
    top: 60%;
    transform: translateY(-50%);
    background-color: var(--bg-dark);
    border: 2px solid var(--border-color);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

.slider-btn svg{
    width: 20px;
    height: 20px;
    fill: var(--border-color)
}

.slider-btn:hover {
    box-shadow: 0 0px 13px var(--border-color);
}

.slider-dots {
    display: flex;
    justify-content: center;
    gap: 12px;
    position: absolute;
    bottom: 20px;
    left: 0;
    width: 100%;
    z-index: 3;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active {
    background: var(--primary-color);
    transform: scale(1.3);
    box-shadow: 0 0 8px var(--bg-light);
}

.dot:hover {
    background: rgba(255, 255, 255, 0.7);
}

.contact-section {
    background: var(--bg-dark);
    border-top: 1px solid var(--border-color);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}

.contact-info h3 {
    font-size: 1.8rem;
    color: white;
    margin-bottom: 20px;
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 20px;
}

.contact-item i {
    width: 45px;
    height: 45px;
    background: var(--bg-light);
    color: var(--primary-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    flex-shrink: 0;
}

.contact-form {
    background: var(--bg-dark);
    padding: 25px 20px;
    border-radius: 12px;
    border: 2px solid var(--border-color);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: 14px;
    background: var(--bg-dark);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    color: var(--text-primary);
}

.form-control:focus {
    border-color: var(--primary-color);
    outline: none;
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

.form-message {
    display: none;
    padding: 15px;
    border-radius: 8px;
    margin-top: 20px;
    text-align: center;
    font-weight: 500;
}

.success-message {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.error-message {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

footer {
    background: var(--bg-darker);
    color: white;
    padding: 50px 0 25px;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-bottom: 40px;
}

.footer-logo {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 15px;
    display: block;
    color: white;
    text-decoration: none;
}

.footer-logo i {
    color: var(--primary-color);
    margin-right: 10px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}



body.menu-open {
    overflow: hidden;
}

.advantages-section {
    background: var(--bg-dark);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.advantages-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.advantages-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-bottom: 60px;
    position: relative;
    z-index: 2;
}

.advantage-card {
    background: var(--bg-dark);
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid var(--bg-light);
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0px 10px var(--bg-light);
}

.advantage-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.advantage-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 1rem;
}

.advantages-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    position: relative;
    z-index: 2;
    padding: 40px;
    background: var(--bg-dark);
    border-radius: 16px;
    backdrop-filter: blur(15px);
    border: 2px solid var(--border-color);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(45deg, var(--primary-color), #9a81d049);
    margin-bottom: 10px;
    line-height: 1;
    border: 2px solid var(--border-color);
    border-radius: 10px;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

@media (min-width: 768px) {
    section {
        padding: 80px 0;
    }
    
    .section-title h2 {
        font-size: 2.3rem;
    }
    
    .hero-content h1 {
        font-size: 2.8rem;
    }
    
    .hero-btns {
        flex-direction: row;
    }
    
    .slide img {
        height: 400px;
    }
    
    .contact-form {
        padding: 35px 30px;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .mobile-menu-btn {
        display: none;
    }
    
    nav {
        position: static;
        width: auto;
        max-width: none;
        height: auto;
        background: transparent;
        border: none;
        transform: none;
        opacity: 1;
        visibility: visible;
        box-shadow: none;
        overflow: visible;
    }
    
    nav ul {
        flex-direction: row;
        padding: 0;
    }
    
    nav ul li {
        margin-left: 25px;
        border-bottom: none;
    }
    
    nav ul li a {
        padding: 0;
    }
}

@media (min-width: 992px) {
    .section-title h2 {
        font-size: 2.5rem;
    }
    
    .hero-content h1 {
        font-size: 3.2rem;
    }
    
    .slide img {
        height: 500px;
    }
    
    .contact-container {
        grid-template-columns: 1fr 1fr;
        gap: 50px;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr 1fr;
    }
    
    nav ul li {
        margin-left: 30px;
    }

    .advantages-grid{
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
}