:root {
    color-scheme: dark;
    --bg: #05070d;
    --bg-soft: #080d16;
    --panel: rgba(12, 18, 31, 0.78);
    --panel-strong: rgba(15, 23, 42, 0.94);
    --panel-border: rgba(96, 165, 250, 0.18);
    --text: #eef6ff;
    --muted: #9fb1c7;
    --blue: #2f81ff;
    --cyan: #22d3ee;
    --green: #3ef7a5;
    --violet: #8b5cf6;
    --danger-dark: #101827;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background:
        linear-gradient(rgba(34, 211, 238, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(34, 211, 238, 0.035) 1px, transparent 1px),
        radial-gradient(circle at 18% 18%, rgba(47, 129, 255, 0.16), transparent 32rem),
        radial-gradient(circle at 84% 12%, rgba(62, 247, 165, 0.09), transparent 28rem),
        var(--bg);
    background-size: 48px 48px, 48px 48px, auto, auto, auto;
    color: var(--text);
}

body.nav-open {
    overflow: hidden;
}

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

button,
input,
select,
textarea {
    font: inherit;
}

.shell {
    width: min(1160px, calc(100% - 32px));
    margin: 0 auto;
}

.site-header {
    position: fixed;
    z-index: 20;
    top: 0;
    left: 50%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: min(1160px, calc(100% - 24px));
    min-height: 68px;
    margin-top: 12px;
    padding: 0 14px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    background: rgba(5, 7, 13, 0.76);
    backdrop-filter: blur(18px);
    transform: translateX(-50%);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
}

.brand__mark {
    display: inline-grid;
    width: 36px;
    height: 36px;
    place-items: center;
    border: 1px solid rgba(34, 211, 238, 0.34);
    border-radius: 8px;
    color: var(--cyan);
    background: rgba(34, 211, 238, 0.08);
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.site-nav a {
    padding: 10px 12px;
    border-radius: 8px;
    color: var(--muted);
    font-size: 0.92rem;
    transition: color 160ms ease, background 160ms ease;
}

.site-nav a:hover {
    color: var(--text);
    background: rgba(255, 255, 255, 0.05);
}

.nav-toggle {
    display: none;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    padding: 9px 12px;
}

.hero {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    min-height: 100vh;
}

.hero::before,
.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero::before {
    z-index: -1;
    background:
        linear-gradient(90deg, rgba(5, 7, 13, 0.94) 0%, rgba(5, 7, 13, 0.78) 34%, rgba(5, 7, 13, 0.44) 64%, rgba(5, 7, 13, 0.78) 100%),
        linear-gradient(180deg, rgba(5, 7, 13, 0.58), rgba(5, 7, 13, 0.9));
}

.hero::after {
    z-index: -1;
    background:
        linear-gradient(115deg, transparent 0%, transparent 42%, rgba(34, 211, 238, 0.14) 49%, transparent 58%, transparent 100%),
        linear-gradient(rgba(34, 211, 238, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(34, 211, 238, 0.04) 1px, transparent 1px);
    background-size: 240% 100%, 48px 48px, 48px 48px;
    animation: heroSweep 6.5s ease-in-out infinite;
    mix-blend-mode: screen;
    opacity: 0.72;
}

.hero__bg {
    position: absolute;
    z-index: -2;
    inset: -24px;
    background-image: url("../img/hero-datacenter.png");
    background-position: center;
    background-size: cover;
    transform: scale(1.03);
    filter: saturate(0.98) contrast(1.06) brightness(0.78);
}

.hero__inner {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 116px 0 72px;
}

.hero__content {
    max-width: 820px;
}

.eyebrow {
    width: fit-content;
    margin: 0 0 18px;
    padding: 8px 12px;
    border: 1px solid rgba(34, 211, 238, 0.28);
    border-radius: 999px;
    color: var(--cyan);
    background: rgba(34, 211, 238, 0.06);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1 {
    max-width: 780px;
    margin-bottom: 0;
    font-size: clamp(2.45rem, 5.7vw, 5.2rem);
    line-height: 0.98;
    letter-spacing: 0;
}

h2 {
    max-width: 820px;
    margin-bottom: 0;
    font-size: clamp(2rem, 4vw, 3.45rem);
    line-height: 1.04;
    letter-spacing: 0;
}

h3 {
    margin-bottom: 10px;
    font-size: 1.05rem;
    line-height: 1.25;
}

p {
    color: var(--muted);
    line-height: 1.72;
}

.hero__lead {
    max-width: 690px;
    margin: 24px 0 0;
    font-size: 1.08rem;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 34px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 18px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    font-weight: 800;
    cursor: pointer;
    transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button:hover {
    transform: translateY(-2px);
}

.button--primary {
    border-color: rgba(47, 129, 255, 0.5);
    background: linear-gradient(135deg, var(--blue), var(--cyan));
    color: #06111f;
}

.button--ghost {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
}

.metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    max-width: 620px;
    margin: 38px 0 0;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.035);
}

.metrics div {
    padding: 16px;
}

.metrics div + div {
    border-left: 1px solid rgba(255, 255, 255, 0.08);
}

.metrics dt {
    color: var(--green);
    font-size: 1.35rem;
    font-weight: 900;
}

.metrics dd {
    margin: 4px 0 0;
    color: var(--muted);
    font-size: 0.84rem;
}

code {
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.section {
    padding: 96px 0;
}

.section__header {
    max-width: 860px;
    margin-bottom: 34px;
}

.section__header p:not(.eyebrow) {
    max-width: 700px;
    margin: 18px 0 0;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.service-card,
.project-card,
.infra-panel,
.contact-form {
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    background: var(--panel);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.24);
    backdrop-filter: blur(16px);
}

.service-card {
    min-height: 228px;
    padding: 20px;
    transition: transform 180ms ease, border-color 180ms ease;
}

.service-card:hover {
    transform: translateY(-4px);
    border-color: rgba(34, 211, 238, 0.36);
}

.icon-badge {
    display: inline-grid;
    width: 42px;
    height: 42px;
    place-items: center;
    margin-bottom: 22px;
    border: 1px solid rgba(47, 129, 255, 0.24);
    border-radius: 8px;
    color: var(--cyan);
    background: rgba(47, 129, 255, 0.08);
    font-size: 0.78rem;
    font-weight: 900;
}

.section--split {
    background: linear-gradient(180deg, rgba(8, 13, 22, 0.62), rgba(8, 13, 22, 0.16));
}

.split {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
    gap: 44px;
}

.solution-list {
    display: grid;
    gap: 12px;
}

.solution-row {
    display: grid;
    grid-template-columns: 18px 1fr;
    gap: 16px;
    padding: 16px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.035);
}

.solution-row > span {
    width: 10px;
    height: 10px;
    margin-top: 7px;
    border-radius: 999px;
    background: var(--green);
    box-shadow: 0 0 26px rgba(62, 247, 165, 0.44);
}

.solution-row h3,
.solution-row p,
.infra-grid h3,
.infra-grid p {
    margin-bottom: 0;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.project-card {
    overflow: hidden;
}

.project-card__top {
    padding: 22px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    background: linear-gradient(145deg, rgba(47, 129, 255, 0.1), rgba(139, 92, 246, 0.08));
}

.project-card__top span {
    display: inline-block;
    margin-bottom: 18px;
    color: var(--green);
    font-size: 0.76rem;
    font-weight: 900;
}

.project-card dl {
    display: grid;
    gap: 16px;
    margin: 0;
    padding: 22px;
}

.project-card dt {
    color: var(--cyan);
    font-size: 0.78rem;
    font-weight: 900;
    text-transform: uppercase;
}

.project-card dd {
    margin: 5px 0 0;
    color: var(--muted);
    line-height: 1.62;
}

.infra-panel {
    padding: 34px;
    background:
        linear-gradient(135deg, rgba(47, 129, 255, 0.12), rgba(62, 247, 165, 0.05)),
        var(--panel-strong);
}

.infra-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.infra-grid article {
    min-height: 142px;
    padding: 18px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.14);
}

.stack-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.stack-cloud span {
    display: inline-flex;
    align-items: center;
    min-height: 42px;
    padding: 0 14px;
    border: 1px solid rgba(34, 211, 238, 0.2);
    border-radius: 8px;
    background: rgba(34, 211, 238, 0.055);
    color: #dffbff;
    font-weight: 750;
}

.contact-section {
    padding-bottom: 72px;
    background: linear-gradient(180deg, transparent, rgba(47, 129, 255, 0.06));
}

.contact-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.92fr) minmax(320px, 1.08fr);
    gap: 42px;
    align-items: start;
}

.contact-form {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    padding: 22px;
}

.contact-form label {
    display: grid;
    gap: 8px;
    color: var(--text);
    font-weight: 800;
}

.contact-form label:nth-last-of-type(1) {
    grid-column: 1 / -1;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    background: rgba(3, 7, 18, 0.72);
    color: var(--text);
    outline: none;
    padding: 12px;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    border-color: rgba(34, 211, 238, 0.55);
}

.contact-form button {
    grid-column: 1 / -1;
    width: fit-content;
}

.site-footer {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    justify-content: space-between;
    padding: 28px 0 40px;
    color: var(--muted);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 520ms ease, transform 520ms ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes heroSweep {
    0%, 36% {
        background-position: -160% 0, 0 0, 0 0;
    }
    70%, 100% {
        background-position: 160% 0, 0 0, 0 0;
    }
}

@media (max-width: 980px) {
    .split,
    .contact-layout {
        grid-template-columns: 1fr;
    }

    .card-grid,
    .infra-grid,
    .project-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 760px) {
    .nav-toggle {
        display: inline-flex;
    }

    .site-nav {
        position: fixed;
        top: 76px;
        right: 12px;
        left: 12px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 12px;
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: 8px;
        background: rgba(5, 7, 13, 0.96);
    }

    body.nav-open .site-nav {
        display: flex;
    }

    .site-nav a {
        padding: 13px;
    }

    .hero__inner {
        padding-top: 116px;
    }

    .metrics,
    .contact-form {
        grid-template-columns: 1fr;
    }

    .metrics div + div {
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        border-left: 0;
    }

}

@media (max-width: 560px) {
    .shell {
        width: min(100% - 24px, 1160px);
    }

    .site-header {
        width: calc(100% - 18px);
    }

    h1 {
        font-size: 2.42rem;
    }

    h2 {
        font-size: 2rem;
    }

    .hero__actions .button,
    .contact-form button,
    .section__header .button {
        width: 100%;
    }

    .card-grid,
    .infra-grid,
    .project-grid {
        grid-template-columns: 1fr;
    }

    .section {
        padding: 72px 0;
    }
}