:root {
    --black: #000000;
    --white: #ffffff;
    --soft-white: #f6f6f6;
    --gray: #b3b3b3;
    --dark-gray: #6b6b6b;

    --blue-dark: #00385e;
    --blue-mid: #005d9e;
    --blue-bright: #0084e0;

    --max-width: 1120px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "Jost", system-ui, sans-serif;
    background:
            radial-gradient(circle at top, rgba(0, 132, 224, 0.22), transparent 34rem),
            linear-gradient(180deg, #08111c 0%, #000000 78%);
    color: var(--soft-white);
    min-height: 100vh;
}

a {
    color: inherit;
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 20;

    display: flex;
    align-items: center;
    justify-content: space-between;

    padding: 1.25rem clamp(1.25rem, 4vw, 3rem);
    backdrop-filter: blur(18px);
    background: rgba(0, 0, 0, 0.48);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.brand img {
    height: 34px;
    display: block;
}

.language-nav {
    display: flex;
    gap: 0.85rem;
    font-size: 0.85rem;
    letter-spacing: 0.08em;
}

.language-nav a {
    text-decoration: none;
    color: var(--gray);
}

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

.hero {
    position: relative;
    min-height: 100vh;
    display: grid;
    place-items: center;
    overflow: hidden;
    padding: 8rem 1.5rem 5rem;
}

.hero::before,
.hero::after {
    content: "";
    position: absolute;
    width: 70vw;
    height: 70vw;
    border-radius: 50%;
    border: 2px solid rgba(0, 132, 224, 0.32);
    pointer-events: none;
}

.hero::before {
    top: -36vw;
    left: -22vw;
}

.hero::after {
    right: -38vw;
    bottom: -38vw;
}

.hero-bg-lines {
    position: absolute;
    inset: 0;
    opacity: 0.28;
    background:
            linear-gradient(115deg, transparent 0 42%, rgba(0, 132, 224, 0.55) 42% 44%, transparent 44%),
            linear-gradient(105deg, transparent 0 50%, rgba(255, 255, 255, 0.62) 50% 51.2%, transparent 51.2%),
            linear-gradient(172deg, transparent 0 53%, rgba(255, 255, 255, 0.44) 53% 53.6%, transparent 53.6%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 860px;
    text-align: center;
}

.hero-logo {
    width: clamp(92px, 12vw, 145px);
    margin-bottom: 2rem;
    filter: drop-shadow(0 0 28px rgba(0, 132, 224, 0.32));
}

h1 {
    margin: 0;
    font-size: clamp(2.7rem, 4vw, 6.8rem);
    line-height: 1;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.18em;
}

.tagline {
    margin: 1.6rem 0 0;
    font-size: clamp(1.35rem, 3.4vw, 2.5rem);
    line-height: 1.25;
    font-weight: 300;
    color: var(--soft-white);
}

.hero-description {
    max-width: 680px;
    margin: 1.6rem auto 0;
    font-size: clamp(1rem, 1.8vw, 1.2rem);
    line-height: 1.75;
    color: var(--gray);
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    margin-top: 2.5rem;
    padding: 0.9rem 2.2rem;

    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 999px;

    background: linear-gradient(135deg, var(--blue-mid), var(--blue-bright));
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    letter-spacing: 0.04em;

    box-shadow: 0 0 30px rgba(0, 132, 224, 0.28);
    transition: transform 180ms ease, box-shadow 180ms ease;
}

.button:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 42px rgba(0, 132, 224, 0.42);
}

.capabilities {
    width: min(var(--max-width), calc(100% - 2rem));
    margin: 0 auto;
    padding: 5rem 0 7rem;

    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;

    background: linear-gradient(
            90deg,
            transparent,
            rgba(255, 255, 255, 0.1),
            transparent
    );
}

.capability-card {
    padding: 2.5rem;
    text-align: center;
    background: rgba(0, 0, 0, 0.52);
    backdrop-filter: blur(18px);
}

.capability-icon {
    font-size: 2.2rem;
    color: var(--blue-bright);
    margin-bottom: 1rem;
}

.capability-card h2 {
    margin: 0;
    font-size: 1.55rem;
    font-weight: 500;
    letter-spacing: 0.04em;
}

.capability-card p {
    margin: 1rem auto 0;
    max-width: 280px;
    color: var(--gray);
    line-height: 1.7;
}

.site-footer {
    padding: 3rem 1.5rem;
    text-align: center;
    color: var(--gray);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.site-footer a {
    color: var(--soft-white);
    text-decoration: none;
}

.site-footer a:hover {
    color: var(--blue-bright);
}

.footer-note {
    margin-top: 0.75rem;
    font-size: 0.9rem;
    color: var(--dark-gray);
}

@media (max-width: 820px) {
    .site-header {
        position: absolute;
        flex-direction: column;
        gap: 1rem;
    }

    .brand img {
        height: 30px;
    }

    h1 {
        letter-spacing: 0.11em;
    }

    .capabilities {
        grid-template-columns: 1fr;
        background: transparent;
        gap: 1rem;
    }

    .capability-card {
        border: 1px solid rgba(255, 255, 255, 0.1);
    }
}