:root {
    color-scheme: dark light;
    --bg: #070b16;
    --bg-elevated: rgba(17, 22, 36, 0.85);
    --bg-panel: rgba(11, 17, 28, 0.92);
    --fg: #f7f9ff;
    --fg-muted: rgba(247, 249, 255, 0.65);
    --accent: #4da9ff;
    --accent-strong: #63f2ff;
    --border: rgba(255, 255, 255, 0.08);
    --shadow: 0 32px 70px rgba(4, 6, 14, 0.42);
    --radius-lg: 28px;
    --radius-md: 18px;
    --font-sans: "Segoe UI", "Inter", "Roboto", "Helvetica Neue", Arial, sans-serif;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    background:
        radial-gradient(circle at 12% 18%, rgba(60, 90, 255, 0.18), transparent 45%),
        radial-gradient(circle at 85% 8%, rgba(63, 250, 255, 0.14), transparent 40%),
        radial-gradient(circle at 30% 78%, rgba(130, 80, 255, 0.12), transparent 45%),
        linear-gradient(180deg, #05070f 0%, #060912 100%);
    color: var(--fg);
    min-height: 100vh;
}

a {
    color: inherit;
    text-decoration: none;
}

a:hover,
a:focus-visible {
    text-decoration: underline;
}

.layout {
    width: min(1080px, 92vw);
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(18px);
    background: rgba(7, 9, 18, 0.65);
    border-bottom: 1px solid var(--border);
}

.site-header .layout {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
    padding: 1.2rem 0;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    text-decoration: none;
}

.brand__mark {
    display: inline-grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border-radius: 14px;
    background: linear-gradient(135deg, #4da9ff, #63f2ff);
    color: #050812;
    font-weight: 700;
    font-size: 1.3rem;
}

.brand__text {
    display: inline-flex;
    flex-direction: column;
    gap: 0.2rem;
    color: var(--fg);
    font-size: 0.92rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.brand__text strong {
    font-size: 1.05rem;
    letter-spacing: 0.06em;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 1.4rem;
    font-size: 0.95rem;
}

.site-nav .cta {
    padding: 0.55rem 1.2rem;
    border-radius: 999px;
    border: 1px solid rgba(77, 169, 255, 0.4);
    background: rgba(77, 169, 255, 0.1);
    transition: background 0.2s ease, color 0.2s ease;
}

.site-nav .cta:hover {
    background: rgba(77, 169, 255, 0.28);
    text-decoration: none;
}

.nav-toggle {
    display: none;
    width: 46px;
    height: 46px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(9, 12, 20, 0.8);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    gap: 6px;
    flex-direction: column;
    padding: 10px;
}

.nav-toggle__bar {
    width: 100%;
    height: 2px;
    background: var(--fg);
    transition: transform 0.2s ease, opacity 0.2s ease;
}

@media (max-width: 880px) {
    .nav-toggle {
        display: inline-flex;
    }

    .site-nav {
        position: absolute;
        inset: calc(100% + 8px) 4vw auto;
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
        background: var(--bg-panel);
        padding: 1.2rem 1.4rem;
        border-radius: var(--radius-md);
        border: 1px solid var(--border);
        box-shadow: var(--shadow);
        opacity: 0;
        pointer-events: none;
        transform: translateY(-10px);
        transition: opacity 0.2s ease, transform 0.2s ease;
    }

    .site-header.is-nav-open .site-nav {
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0);
    }

    .site-header.is-nav-open .nav-toggle__bar:nth-child(1) {
        transform: translateY(6px) rotate(45deg);
    }
    .site-header.is-nav-open .nav-toggle__bar:nth-child(2) {
        opacity: 0;
    }
    .site-header.is-nav-open .nav-toggle__bar:nth-child(3) {
        transform: translateY(-6px) rotate(-45deg);
    }
}

.hero {
    padding: clamp(4rem, 6vw, 6rem) 0;
}

.hero__layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: clamp(2rem, 4vw, 3rem);
    align-items: start;
}

.hero__content {
    background: var(--bg-panel);
    border-radius: var(--radius-lg);
    padding: clamp(2rem, 3vw, 3rem);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.hero__eyebrow {
    font-size: 0.82rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--fg-muted);
    margin: 0 0 1.4rem;
}

.hero h1 {
    font-size: clamp(2.1rem, 4.4vw, 3.3rem);
    margin: 0 0 1.2rem;
}

.hero__lead {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--fg-muted);
    margin: 0 0 2rem;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.8rem 1.4rem;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border 0.2s ease;
}

.button--primary {
    background: linear-gradient(135deg, #4da9ff, #63f2ff);
    color: #050812;
    box-shadow: 0 20px 36px rgba(77, 169, 255, 0.35);
}

.button--primary:hover,
.button--primary:focus-visible {
    transform: translateY(-2px);
}

.button--ghost {
    border-color: rgba(255, 255, 255, 0.18);
    background: transparent;
    color: var(--fg);
}

.button--ghost:hover,
.button--ghost:focus-visible {
    border-color: rgba(77, 169, 255, 0.6);
    transform: translateY(-2px);
}

.hero__aside {
    display: grid;
    gap: 1.4rem;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
}

.stats div {
    background: rgba(14, 20, 34, 0.75);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    padding: 1.1rem;
    text-align: center;
    box-shadow: 0 18px 44px rgba(6, 9, 18, 0.45);
}

.stats__figure {
    margin: 0;
    font-size: 2rem;
    font-weight: 700;
}

.stats__label {
    margin: 0;
    font-size: 0.82rem;
    color: var(--fg-muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.hero__aside-copy {
    margin: 0;
    padding: 1.4rem 1.6rem;
    border-radius: var(--radius-md);
    background: rgba(11, 17, 28, 0.65);
    border: 1px solid var(--border);
    color: var(--fg-muted);
    line-height: 1.6;
}

.section-header {
    text-align: center;
    margin-bottom: clamp(2rem, 3vw, 3rem);
}

.section-header__eyebrow {
    margin: 0 0 0.8rem;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--fg-muted);
}

.section-header h2 {
    margin: 0;
    font-size: clamp(1.9rem, 3.4vw, 2.6rem);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: clamp(1.5rem, 2.6vw, 2.2rem);
}

.feature-card {
    background: rgba(11, 17, 28, 0.8);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    padding: 1.8rem;
    display: grid;
    gap: 1rem;
    box-shadow: var(--shadow);
    transition: transform 0.2s ease, border 0.2s ease;
}

.feature-card:hover,
.feature-card:focus-within {
    transform: translateY(-4px);
    border-color: rgba(77, 169, 255, 0.4);
}

.feature-card__icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(77, 169, 255, 0.18);
    display: grid;
    place-items: center;
    font-weight: 700;
    color: var(--accent-strong);
}

.feature-card h3 {
    margin: 0;
    font-size: 1.35rem;
}

.feature-card p {
    margin: 0;
    color: var(--fg-muted);
    line-height: 1.6;
}

.feature-card__link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-weight: 600;
    color: var(--accent-strong);
}

.feature-card__link span {
    font-size: 1.2rem;
}

.spotlight {
    padding: clamp(3.5rem, 5vw, 5rem) 0;
}

.spotlight__layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: clamp(2rem, 3vw, 3rem);
    align-items: center;
    background: rgba(9, 13, 24, 0.78);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    padding: clamp(2rem, 3vw, 3rem);
}

.spotlight__eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.82rem;
    color: var(--fg-muted);
    margin: 0 0 1rem;
}

.spotlight__content h2 {
    margin: 0 0 1.1rem;
    font-size: clamp(1.9rem, 3.2vw, 2.5rem);
}

.spotlight__content p {
    color: var(--fg-muted);
    line-height: 1.65;
}

.spotlight__list {
    margin: 1.4rem 0 2rem;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 0.6rem;
    color: var(--fg-muted);
}

.spotlight__list li {
    position: relative;
    padding-left: 1.4rem;
}

.spotlight__list li::before {
    content: "-";
    position: absolute;
    left: 0;
    color: var(--accent-strong);
}

.spotlight__media {
    display: grid;
    gap: 1.2rem;
    justify-items: center;
}

.spotlight__card {
    background: rgba(7, 12, 22, 0.9);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    padding: 1.6rem 1.8rem;
    width: min(280px, 100%);
    box-shadow: var(--shadow);
}

.spotlight__card-title {
    margin: 0 0 0.8rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--fg-muted);
}

.spotlight__card ul {
    margin: 0;
    padding-left: 1.2rem;
    color: var(--fg-muted);
    line-height: 1.6;
}

.spotlight__badge {
    padding: 0.5rem 1.4rem;
    border-radius: 999px;
    border: 1px solid rgba(99, 242, 255, 0.6);
    color: var(--accent-strong);
    background: rgba(77, 169, 255, 0.12);
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.cta-block {
    padding: clamp(3rem, 5vw, 4.5rem) 0;
}

.cta-block__layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    align-items: center;
    background: rgba(9, 14, 26, 0.8);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    padding: clamp(2rem, 3vw, 3rem);
    box-shadow: var(--shadow);
}

.cta-block__eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.82rem;
    color: var(--fg-muted);
    margin: 0 0 0.6rem;
}

.cta-block h2 {
    margin: 0 0 1rem;
    font-size: clamp(1.8rem, 3vw, 2.2rem);
}

.cta-block p {
    margin: 0;
    color: var(--fg-muted);
    line-height: 1.6;
}

.site-footer {
    padding: 3rem 0 3.5rem;
    background: rgba(5, 8, 15, 0.95);
    border-top: 1px solid var(--border);
}

.site-footer__layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    color: var(--fg-muted);
    align-items: start;
}

.footer-nav {
    display: grid;
    gap: 0.6rem;
}

.footer-nav a {
    color: inherit;
}

.site-footer__copyright {
    margin: 0;
    font-size: 0.85rem;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}