:root {
    --bg: #050505;
    --accent: #00f2ff;
    --purple: #7000ff;
    --text: #e0e0e0;
    --glass: rgba(255, 255, 255, 0.05);
}

* { box-sizing: border-box; }

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Inter', sans-serif;
    margin: 0;
    line-height: 1.6;
}

header {
    padding: 20px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    width: 100%;
    z-index: 1000;
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(15px);
}

.logo { font-weight: bold; font-size: 1.5rem; letter-spacing: 2px; }
.logo span { color: var(--accent); }

nav ul { display: flex; list-style: none; gap: 30px; }
nav a { color: white; text-decoration: none; font-size: 0.9rem; transition: 0.3s; }

.hero {
    padding-top: 50px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 0 10%;
}

.badge {
    background: var(--glass);
    padding: 5px 15px;
    border-radius: 20px;
    border: 1px solid var(--accent);
    font-size: 0.8rem;
    margin-bottom: 20px;
    color: var(--accent);
}

h1 { font-size: 5rem; margin: 0; font-weight: 700; letter-spacing: -2px; }
.hero-subtext { max-width: 600px; font-size: 1.2rem; opacity: 0.7; margin: 20px 0; }

.gradient-text {
    background: linear-gradient(90deg, var(--accent), var(--purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Кнопки */
.btn-primary { background: var(--accent); color: #000; padding: 12px 30px; border-radius: 8px; font-weight: bold; text-decoration: none; }
.btn-secondary { border: 1px solid #444; color: white; padding: 12px 30px; border-radius: 8px; text-decoration: none; transition: 0.3s; }
.btn-secondary:hover { background: white; color: black; }

/* Слайдер */
.slider-container {
    height: 600px;
    width: 90%;
    margin: 100px auto;
    border-radius: 30px;
    overflow: hidden;
    position: relative;
}

.slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: 1.5s ease-in-out;
    display: flex;
    align-items: flex-end;
    padding: 60px;
}

.slide.active { opacity: 1; }

.slide-content { max-width: 500px; }
.slide-content h3 { font-size: 2rem; margin-bottom: 10px; color: var(--accent); }

/* Секция деталей */
.details { padding: 100px 10%; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }

.card {
    background: var(--glass);
    padding: 30px;
    border-radius: 20px;
    margin-bottom: 20px;
    border: 1px solid rgba(255,255,255,0.1);
}

@media (max-width: 768px) {
    h1 { font-size: 3rem; }
    .grid { grid-template-columns: 1fr; }
}

.technology-section {
    padding: 120px 5%;
    background: linear-gradient(180deg, #050505 0%, #0a0a0f 100%);
}

.tech-header {
    text-align: center;
    margin-bottom: 80px;
}

.label {
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 4px;
    font-size: 0.8rem;
    display: block;
    margin-bottom: 15px;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.tech-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 40px;
    border-radius: 24px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.tech-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--accent);
    transform: translateY(-10px);
}

.tech-card.active {
    border-color: var(--purple);
    box-shadow: 0 20px 40px rgba(112, 0, 255, 0.1);
}

.card-icon {
    font-size: 3rem;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.05);
    position: absolute;
    top: 20px;
    right: 20px;
}

.tech-card h3 {
    font-size: 1.4rem;
    margin-bottom: 20px;
    color: #fff;
}

.tech-card p {
    font-size: 0.95rem;
    color: #a0a0a0;
    line-height: 1.7;
}

.tech-footer-text {
    margin-top: 60px;
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.6;
    font-style: italic;
}