* {
    box-sizing: border-box;
}

:root {
    --bg: #050914;
    --bg-soft: #0c1324;
    --panel: rgba(12, 19, 36, 0.82);
    --panel-2: rgba(255, 255, 255, 0.05);
    --line: rgba(150, 210, 255, 0.16);
    --text: #e8f3ff;
    --muted: #b5c7df;
    --accent: #78d8ff;
    --accent-2: #2ca3ff;
    --accent-3: #7b8cff;
    --shadow: 0 20px 70px rgba(0, 0, 0, 0.45);
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background:
        radial-gradient(circle at top, rgba(30, 80, 150, 0.20), transparent 35%),
        linear-gradient(180deg, #040811 0%, #07101d 50%, #040811 100%);
    color: var(--text);
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: none;
    opacity: 0.95;
}

img {
    max-width: 100%;
    display: block;
}

.container {
    width: min(1240px, calc(100% - 32px));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(14px);
    background: rgba(4, 8, 17, 0.82);
    border-bottom: 1px solid rgba(120, 216, 255, 0.10);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    min-height: 98px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    text-decoration: none;
}

.brand:hover {
    opacity: 1;
}

.brand-logo {
    height: 78px;
    width: auto;
    display: block;
    filter: drop-shadow(0 0 12px rgba(120, 216, 255, 0.18));
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
}

.main-nav a {
    color: #d9ecff;
    font-size: 0.98rem;
}

.site-main {
    min-height: 70vh;
}

.hero-home {
    position: relative;
    min-height: 86vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background:
        linear-gradient(180deg, rgba(3, 8, 18, 0.55), rgba(3, 8, 18, 0.85)),
        url('/assets/img/vlb-hero.jpg') center top / cover no-repeat;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 20%, rgba(120, 216, 255, 0.18), transparent 24%),
        radial-gradient(circle at 80% 15%, rgba(120, 216, 255, 0.12), transparent 18%),
        linear-gradient(180deg, rgba(3, 8, 18, 0.20) 0%, rgba(3, 8, 18, 0.55) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    width: min(920px, calc(100% - 32px));
    text-align: center;
    padding: 70px 0;
}

.hero-badge,
.eyebrow {
    display: inline-block;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(8, 18, 35, 0.58);
    border: 1px solid rgba(120, 216, 255, 0.24);
    color: #bce8ff;
    font-size: 0.9rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 18px;
}

.hero-content h1 {
    margin: 0;
    font-size: clamp(2.7rem, 7vw, 5.4rem);
    line-height: 1.02;
    text-shadow:
        0 0 10px rgba(120, 216, 255, 0.35),
        0 0 25px rgba(120, 216, 255, 0.25),
        0 0 50px rgba(120, 216, 255, 0.15);
}

.hero-text {
    max-width: 760px;
    margin: 22px auto 0;
    font-size: 1.18rem;
    line-height: 1.7;
    color: var(--muted);
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
}

.hero-actions,
.cta-actions {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 30px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 170px;
    padding: 14px 22px;
    border-radius: 12px;
    font-weight: bold;
    letter-spacing: 0.02em;
    transition: all 0.25s ease;
}

.btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 30px rgba(120, 216, 255, 0.25);
}

.btn-primary {
    color: #04111f;
    background: linear-gradient(135deg, #8ce6ff, #49b9ff);
    box-shadow: 0 10px 24px rgba(73, 185, 255, 0.24);
}

.btn-secondary {
    color: #fff;
    background: linear-gradient(135deg, rgba(31, 92, 160, 0.95), rgba(63, 126, 255, 0.90));
    box-shadow: 0 10px 24px rgba(63, 126, 255, 0.16);
}

.btn-ghost {
    color: #dff5ff;
    border: 1px solid rgba(120, 216, 255, 0.35);
    background: rgba(9, 18, 34, 0.48);
}

.section {
    padding: 78px 0;
}

.section-heading {
    max-width: 820px;
    margin: 0 auto 34px;
    text-align: center;
}

.section-heading h2,
.highlight-text h2,
.cta-box h2 {
    margin: 12px 0 16px;
    font-size: clamp(2rem, 4.4vw, 3rem);
    line-height: 1.12;
}

.section-heading p,
.highlight-text p,
.cta-box p {
    color: var(--muted);
    line-height: 1.75;
    font-size: 1.06rem;
}

.intro-section {
    background: linear-gradient(180deg, rgba(5, 9, 20, 0.96), rgba(9, 16, 31, 0.98));
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(255px, 1fr));
    gap: 20px;
}

.feature-card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 20px;
    padding: 24px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(8px);
}

.feature-card h3 {
    margin-top: 0;
    margin-bottom: 12px;
    font-size: 1.25rem;
}

.feature-card p {
    color: var(--muted);
    line-height: 1.7;
    margin-bottom: 18px;
}

.card-link {
    display: inline-flex;
    font-weight: bold;
}

.highlight-section {
    background:
        radial-gradient(circle at top right, rgba(64, 114, 255, 0.12), transparent 24%),
        linear-gradient(180deg, #09101d 0%, #060b14 100%);
}

.highlight-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 28px;
    align-items: center;
}

.highlight-panel {
    display: flex;
    justify-content: center;
}

.mini-panel {
    width: 100%;
    background: linear-gradient(180deg, rgba(12, 19, 36, 0.95), rgba(7, 13, 24, 0.95));
    border: 1px solid rgba(120, 216, 255, 0.18);
    border-radius: 22px;
    padding: 28px;
    box-shadow: var(--shadow);
}

.mini-panel h3 {
    margin-top: 0;
    margin-bottom: 16px;
    font-size: 1.3rem;
}

.mini-panel ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mini-panel li {
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.mini-panel li:last-child {
    border-bottom: none;
}

.cta-section {
    background: linear-gradient(180deg, #050914 0%, #04070f 100%);
    padding-top: 40px;
    padding-bottom: 90px;
}

.cta-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    background: linear-gradient(135deg, rgba(10, 21, 40, 0.96), rgba(18, 37, 74, 0.96));
    border: 1px solid rgba(120, 216, 255, 0.18);
    border-radius: 26px;
    padding: 34px;
    box-shadow: var(--shadow);
}

.site-footer {
    border-top: 1px solid rgba(120, 216, 255, 0.10);
    background: #04070f;
}

.footer-inner {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 28px;
    padding: 44px 0 30px;
}

.footer-brand {
    display: flex;
    gap: 20px;
    align-items: center;
}

.footer-logo {
    width: 130px;
    max-width: 100%;
    filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.45));
}

.footer-brand h3 {
    margin: 0 0 10px;
    font-size: 1.35rem;
}

.footer-brand p {
    margin: 0;
    color: var(--muted);
    line-height: 1.7;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.footer-links h4 {
    margin-top: 0;
    margin-bottom: 14px;
    font-size: 1rem;
    color: #fff;
}

.footer-links ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-bottom {
    border-top: 1px solid rgba(120, 216, 255, 0.08);
    padding: 16px 0 22px;
    text-align: center;
    color: #93a5be;
    font-size: 0.95rem;
}

@media (max-width: 980px) {
    .header-inner,
    .cta-box,
    .footer-inner,
    .highlight-grid {
        grid-template-columns: 1fr;
        display: grid;
    }

    .header-inner {
        gap: 14px;
    }

    .main-nav {
        justify-content: flex-start;
    }

    .cta-box {
        text-align: center;
    }

    .footer-links {
        grid-template-columns: 1fr 1fr;
    }

    .footer-brand {
        align-items: flex-start;
    }
}

@media (max-width: 700px) {
    .site-header {
        position: static;
    }

    .header-inner {
        padding: 14px 0;
    }

    .brand {
        width: 100%;
        justify-content: center;
    }

    .brand-logo {
        height: 64px;
    }

    .main-nav {
        width: 100%;
        justify-content: center;
        gap: 12px;
    }

    .hero-home {
        min-height: 78vh;
        background-position: center top;
    }

    .section {
        padding: 58px 0;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .footer-brand {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }
}