* {
    box-sizing: border-box;
}

:root {
    --background: #0b161c;
    --surface: #13242c;
    --surface-light: #1b323c;
    --text: #f4f7f8;
    --text-muted: #a9bbc3;
    --accent: #4caf82;
    --accent-hover: #62c797;
    --border: rgba(255, 255, 255, 0.1);
}

body {
    margin: 0;
    background:
        radial-gradient(circle at top, #173542 0, #0b161c 45%);
    color: var(--text);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.6;
}

.container {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    border-bottom: 1px solid var(--border);
    background: rgba(11, 22, 28, 0.92);
    backdrop-filter: blur(12px);
}

.site-header .container {
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

.logo {
    color: var(--text);
    font-size: 20px;
    font-weight: 700;
    text-decoration: none;
}

.main-navigation {
    display: flex;
    align-items: center;
    gap: 24px;
}

.main-navigation a {
    color: var(--text-muted);
    text-decoration: none;
}

.main-navigation a:hover {
    color: var(--text);
}

.main-content {
    padding: 50px 0;
}

.hero {
    min-height: 500px;
    display: flex;
    align-items: center;
    padding: 70px;
    border: 1px solid var(--border);
    border-radius: 24px;
    background:
        linear-gradient(
            90deg,
            rgba(7, 18, 24, 0.96),
            rgba(7, 18, 24, 0.45)
        ),
        url("../images/hero.jpg") center / cover;
}

.hero > div {
    max-width: 680px;
}

.hero h1 {
    margin: 10px 0 18px;
    font-size: clamp(40px, 6vw, 72px);
    line-height: 1.05;
}

.hero p {
    max-width: 600px;
    color: var(--text-muted);
    font-size: 19px;
}

.eyebrow {
    color: var(--accent);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.button {
    display: inline-flex;
    margin-top: 20px;
    padding: 13px 22px;
    border-radius: 10px;
    background: var(--accent);
    color: #07130e;
    font-weight: 700;
    text-decoration: none;
}

.button:hover {
    background: var(--accent-hover);
}

@media (max-width: 760px) {
    .site-header .container {
        padding: 14px 0;
        align-items: flex-start;
        flex-direction: column;
    }

    .main-navigation {
        width: 100%;
        gap: 14px;
        overflow-x: auto;
    }

    .hero {
        min-height: 420px;
        padding: 32px 24px;
    }
}