:root {
    --bg: #071018;
    --panel: #0e1a24;
    --panel2: #111d29;
    --line: rgba(125, 211, 252, 0.22);
    --text: #f8fafc;
    --muted: #a8b6c7;
    --teal: #2dd4bf;
    --blue: #38bdf8;
    --green: #22c55e;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: "Segoe UI", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
}

.topbar {
    height: 72px;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(3, 7, 18, 0.95);
    border-bottom: 1px solid var(--line);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-box {
    width: 36px;
    height: 36px;
    border: 2px solid var(--teal);
    color: var(--teal);
    display: grid;
    place-items: center;
    border-radius: 10px;
}

.logo-wrap h3 {
    font-size: 19px;
}

.logo-wrap span {
    color: var(--muted);
    font-size: 11px;
}

nav a {
    color: white;
    text-decoration: none;
    margin: 0 15px;
    font-size: 14px;
}

.report-btn {
    background: var(--teal);
    color: #031018;
    padding: 13px 22px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: bold;
}

.hero {
    min-height: 520px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-bottom: 1px solid var(--line);
    background:
            linear-gradient(90deg, rgba(7,16,24,0.96) 0%, rgba(7,16,24,0.68) 48%, rgba(7,16,24,0.9) 100%),
            radial-gradient(circle at 68% 45%, rgba(45,212,191,0.24), transparent 22%),
            url("https://images.unsplash.com/photo-1558494949-ef010cbdcc31?auto=format&fit=crop&w=1800&q=80");
    background-size: cover;
    background-position: center;
}

.hero-left {
    padding: 95px 55px;
}

.label {
    color: var(--teal);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 1px;
    margin-bottom: 18px;
}

.hero h1 {
    font-size: 48px;
    line-height: 1.12;
    margin-bottom: 22px;
}

.hero h1 span {
    color: var(--teal);
}

.hero-desc {
    color: white;
    font-size: 18px;
    max-width: 640px;
    line-height: 1.7;
    margin-bottom: 28px;
}

.quick-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    max-width: 620px;
    margin-bottom: 30px;
}

.quick-cards div {
    padding: 16px;
    border: 1px solid var(--line);
    background: rgba(14, 26, 36, 0.75);
}

.quick-cards b {
    display: block;
    font-size: 13px;
    margin-bottom: 6px;
}

.quick-cards span {
    color: var(--muted);
    font-size: 12px;
}

.btn {
    display: inline-block;
    padding: 15px 26px;
    border-radius: 6px;
    text-decoration: none;
    margin-right: 12px;
    font-weight: bold;
}

.primary {
    background: var(--teal);
    color: #061018;
}

.secondary {
    border: 1px solid var(--line);
    color: white;
}

.hero-visual {
    display: grid;
    place-items: center;
}

.shield {
    width: 260px;
    height: 260px;
    display: grid;
    place-items: center;
    font-size: 110px;
    border: 2px solid var(--teal);
    clip-path: polygon(50% 0%, 92% 18%, 82% 75%, 50% 100%, 18% 75%, 8% 18%);
    background: rgba(45, 212, 191, 0.08);
    box-shadow: 0 0 70px rgba(45, 212, 191, 0.35);
}

.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-bottom: 1px solid var(--line);
}

.panel {
    padding: 42px;
    min-height: 360px;
    border-right: 1px solid var(--line);
    background:
            radial-gradient(circle at 70% 30%, rgba(45,212,191,0.08), transparent 30%),
            var(--bg);
}

.panel h2,
.features-section h2 {
    font-size: 30px;
    margin-bottom: 15px;
}

.panel p {
    color: var(--muted);
    line-height: 1.7;
    margin-bottom: 15px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    margin-top: 30px;
    gap: 20px;
}

.stats strong {
    color: var(--teal);
    font-size: 26px;
    display: block;
}

.stats span {
    color: white;
    font-size: 12px;
}

.diagram {
    text-align: center;
    margin-top: 18px;
}

.node {
    display: inline-block;
    border: 1px solid var(--line);
    background: var(--panel2);
    padding: 12px 18px;
    border-radius: 8px;
    font-weight: bold;
    font-size: 13px;
}

.node small {
    color: var(--muted);
}

.line {
    height: 25px;
    width: 1px;
    background: var(--line);
    margin: 7px auto;
}

.branch {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-top: 25px;
}

.branch div {
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel2);
    font-size: 12px;
}

.features-section {
    padding: 34px 24px 46px;
    border-bottom: 1px solid var(--line);
    background: #08141d;
}

.center {
    text-align: center;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 14px;
    margin-top: 24px;
}

.feature-card {
    padding: 24px 16px;
    background: var(--panel2);
    border: 1px solid var(--line);
    border-radius: 8px;
    text-align: center;
    min-height: 175px;
}

.feature-card {
    font-size: 32px;
}

.feature-card h3 {
    font-size: 14px;
    margin: 14px 0 10px;
}

.feature-card p {
    color: var(--muted);
    font-size: 12px;
    line-height: 1.6;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 24px;
}

.team-card {
    text-align: center;
    background: var(--panel2);
    border: 1px solid var(--line);
    padding: 28px 20px;
    border-radius: 10px;
}

.avatar {
    width: 82px;
    height: 82px;
    border-radius: 50%;
    margin: 0 auto 18px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--teal), var(--green));
    color: #031018;
    font-size: 28px;
    font-weight: 900;
}

.team-card h3 {
    margin-bottom: 8px;
}

.team-card p {
    color: white;
    margin-bottom: 10px;
}

.team-card small {
    color: var(--muted);
    line-height: 1.6;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-top: 24px;
}

.gallery-grid div {
    height: 100px;
    border-radius: 8px;
    border: 1px solid var(--line);
    background:
            linear-gradient(rgba(14,26,36,0.8), rgba(14,26,36,0.8)),
            repeating-linear-gradient(45deg, rgba(45,212,191,0.18) 0 8px, transparent 8px 16px);
    display: grid;
    place-items: center;
    font-size: 13px;
}

.downloads-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 14px;
    margin-top: 20px;
}

.downloads-grid a {
    color: white;
    text-decoration: none;
    text-align: center;
    padding: 18px 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel2);
}

.downloads-grid b,
.downloads-grid span {
    display: block;
}

.downloads-grid span {
    color: var(--muted);
    font-size: 12px;
    margin-top: 8px;
}

.contact-panel form {
    display: grid;
    gap: 10px;
    margin-top: 18px;
}

input,
textarea {
    width: 100%;
    background: var(--panel2);
    border: 1px solid var(--line);
    padding: 14px;
    color: white;
    border-radius: 6px;
}

textarea {
    height: 100px;
}

button {
    background: var(--teal);
    color: #031018;
    border: none;
    padding: 14px;
    border-radius: 6px;
    font-weight: bold;
}

footer {
    padding: 24px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #030712;
    color: var(--muted);
}

.feature-card:hover,
.team-card:hover,
.gallery-grid div:hover,
.downloads-grid a:hover {
    transform: translateY(-5px);
    transition: 0.25s ease;
    border-color: var(--teal);
    box-shadow: 0 0 25px rgba(45, 212, 191, 0.18);
}

@media (max-width: 1100px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .two-col,
    .hero {
        grid-template-columns: 1fr;
    }

    .quick-cards,
    .branch,
    .stats,
    .team-grid,
    .gallery-grid,
    .downloads-grid {
        grid-template-columns: 1fr;
    }

    nav {
        display: none;
    }

    .hero-left {
        padding: 60px 28px;
    }

    .hero h1 {
        font-size: 38px;
    }

    footer {
        flex-direction: column;
        gap: 15px;
    }
}
.architecture-image-box {
    margin-top: 24px;
    width: 100%;
    min-height: 260px;
    border-radius: 12px;
    border: 1px solid var(--line);
    background: rgba(14, 26, 36, 0.65);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.architecture-image-box img {
    width: 100%;
    height: auto;
    display: block;
}