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

:root {
    --black: #000000;
    --dark-gray: #0a0a0a;
    --gray: #1a1a1a;
    --light-gray: #2a2a2a;
    --white: #ffffff;
    --off-white: #f5f5f5;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--black);
    color: var(--white);
    line-height: 1.6;
}

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

/* Навигация */
.navbar {
    background: var(--black);
    border-bottom: 1px solid var(--light-gray);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 2px;
}

.logo-img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.logo-icon {
    font-size: 24px;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    color: var(--off-white);
    text-decoration: none;
    transition: all 0.3s;
    font-size: 14px;
    letter-spacing: 1px;
}

.nav-links a:hover {
    color: var(--white);
}

.btn-outline {
    padding: 10px 24px !important;
    border: 1px solid var(--white) !important;
    border-radius: 0 !important;
    color: var(--white) !important;
}

.btn-outline:hover {
    background: var(--white) !important;
    color: var(--black) !important;
}

.btn-primary {
    padding: 10px 24px !important;
    background: var(--white) !important;
    color: var(--black) !important;
    border-radius: 0 !important;
    font-weight: 600 !important;
}

.btn-primary:hover {
    background: var(--off-white) !important;
}

/* Главный экран */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(45deg, transparent 48%, var(--light-gray) 49%, var(--light-gray) 51%, transparent 52%),
        linear-gradient(-45deg, transparent 48%, var(--light-gray) 49%, var(--light-gray) 51%, transparent 52%);
    background-size: 40px 40px;
    opacity: 0.1;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    padding: 100px 0;
}

.hero-logo {
    width: 120px;
    height: 120px;
    object-fit: contain;
    margin: 0 auto 32px;
    display: block;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    border: 1px solid var(--white);
    font-size: 12px;
    letter-spacing: 2px;
    margin-bottom: 32px;
}

.hero-title {
    font-size: 96px;
    font-weight: 900;
    letter-spacing: 8px;
    margin-bottom: 24px;
    line-height: 1;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--off-white);
    margin-bottom: 48px;
    letter-spacing: 2px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.btn-large {
    padding: 20px 48px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    display: inline-block;
    letter-spacing: 2px;
    border: 2px solid var(--white);
}

.btn-large.btn-primary {
    background: var(--white);
    color: var(--black);
}

.btn-large.btn-primary:hover {
    background: var(--black);
    color: var(--white);
}

.btn-large.btn-outline {
    background: transparent;
    color: var(--white);
}

.btn-large.btn-outline:hover {
    background: var(--white);
    color: var(--black);
}

/* Секции */
section {
    padding: 120px 0;
}

.section-title {
    font-size: 48px;
    font-weight: 900;
    text-align: center;
    margin-bottom: 80px;
    letter-spacing: 4px;
}

/* Возможности */
.features {
    background: var(--dark-gray);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--light-gray);
}

.feature-card {
    background: var(--black);
    padding: 48px 32px;
    text-align: center;
    transition: all 0.3s;
}

.feature-card:hover {
    background: var(--dark-gray);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 24px;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.feature-card p {
    color: var(--off-white);
    font-size: 14px;
}

/* Скачать */
.download {
    background: var(--black);
}

.download-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    padding: 60px;
    border: 1px solid var(--light-gray);
    margin-bottom: 80px;
}

.download-info h3 {
    font-size: 32px;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.download-info p {
    color: var(--off-white);
    margin-bottom: 32px;
}

.download-features {
    list-style: none;
}

.download-features li {
    padding: 12px 0;
    border-bottom: 1px solid var(--light-gray);
    font-size: 14px;
}

.download-action {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    padding: 24px 48px;
    background: var(--white);
    color: var(--black);
    text-decoration: none;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 2px;
    transition: all 0.3s;
    margin-bottom: 16px;
}

.btn-download:hover {
    background: var(--off-white);
    transform: translateY(-4px);
}

.download-icon {
    font-size: 24px;
}

.download-note {
    color: var(--off-white);
    font-size: 12px;
}

.install-steps h3 {
    font-size: 24px;
    margin-bottom: 40px;
    text-align: center;
    letter-spacing: 2px;
}

.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--light-gray);
}

.step {
    background: var(--dark-gray);
    padding: 40px 24px;
    text-align: center;
}

.step-number {
    width: 48px;
    height: 48px;
    border: 2px solid var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 24px;
    font-weight: 700;
}

.step-content h4 {
    font-size: 16px;
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.step-content p {
    color: var(--off-white);
    font-size: 13px;
}

/* FAQ */
.faq {
    background: var(--dark-gray);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    padding: 32px;
    border: 1px solid var(--light-gray);
    margin-bottom: 1px;
    transition: all 0.3s;
}

.faq-item:hover {
    background: var(--black);
}

.faq-item h3 {
    font-size: 18px;
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.faq-item p {
    color: var(--off-white);
    font-size: 14px;
}

/* Футер */
.footer {
    background: var(--black);
    padding: 80px 0 40px;
    border-top: 1px solid var(--light-gray);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-section h4 {
    margin-bottom: 24px;
    font-size: 14px;
    letter-spacing: 2px;
}

.footer-section a {
    display: block;
    color: var(--off-white);
    text-decoration: none;
    margin-bottom: 12px;
    font-size: 14px;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: var(--white);
}

.footer-section p {
    color: var(--off-white);
    margin-top: 16px;
    font-size: 14px;
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid var(--light-gray);
    color: var(--off-white);
    font-size: 12px;
    letter-spacing: 1px;
}

/* Адаптивность */
@media (max-width: 768px) {
    .hero-title {
        font-size: 48px;
        letter-spacing: 4px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .download-card {
        grid-template-columns: 1fr;
    }

    .steps {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .nav-links {
        display: none;
    }
}