:root {
    --bg-dark: #0f141c;
    --bg-card: #161f2e;
    --accent-blue: #00bfff;
    --accent-glow: rgba(0, 191, 255, 0.4);
    --text-main: #f0f4f8;
    --text-muted: #94a3b8;
    --border-color: rgba(0, 191, 255, 0.2);
    --font-tech: 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-main: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-dark);
    color: var(--text-main);
    background-image: 
        radial-gradient(circle at 50% 20%, rgba(0, 191, 255, 0.08) 0%, transparent 40%),
        linear-gradient(to bottom, #0b0f17, #131b26);
    background-attachment: fixed;
    overflow-x: hidden;
    min-height: 100vh;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 8%;
    border-bottom: 1px solid var(--border-color);
    background: rgba(15, 20, 28, 0.85);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-img {
    width: 42px;
    height: 42px;
    object-fit: contain;
    filter: drop-shadow(0 0 8px rgba(0, 191, 255, 0.4));
}

.logo {
    font-family: var(--font-tech);
    font-size: 26px;
    font-weight: 900;
    letter-spacing: 2px;
    color: var(--text-main);
}

.logo span {
    color: var(--accent-blue);
    text-shadow: 0 0 12px var(--accent-glow);
}

.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 120px 20px 80px;
    max-width: 950px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(0, 191, 255, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 24px;
    box-shadow: 0 0 15px rgba(0, 191, 255, 0.15);
}

.hero h1 {
    font-family: var(--font-tech);
    font-size: clamp(32px, 4.5vw, 58px);
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: 1px;
}

.hero h1 span {
    color: var(--accent-blue);
    text-shadow: 0 0 20px var(--accent-glow);
}

.hero p {
    font-size: 18px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 40px;
    max-width: 700px;
}

.features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    padding: 60px 8% 120px;
    max-width: 1100px;
    margin: 0 auto;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 36px 32px;
    position: relative;
    transition: transform 0.3s ease, border-color 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: rgba(0, 191, 255, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--accent-blue);
    font-family: var(--font-tech);
    font-weight: bold;
}

.feature-card h3 {
    font-family: var(--font-tech);
    font-size: 18px;
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.6;
}

footer {
    text-align: center;
    padding: 40px;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 13px;
    background: var(--bg-dark);
}

@media (max-width: 768px) {
    .features {
        grid-template-columns: 1fr;
    }
    .hero {
        padding: 80px 20px 40px;
    }
}