:root {
    --color-bg: #040714;
    --color-panel: rgba(8, 14, 34, 0.92);
    --color-frame: rgba(255, 255, 255, 0.08);
    --color-primary: #a472ff;
    --color-accent: #48d7ff;
    --color-text: #f5f7ff;
    --color-muted: #9db0d8;
    --font-base: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: var(--font-base);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
}

.nebula {
    position: fixed;
    inset: 0;
    z-index: -1;
    background: radial-gradient(circle at 10% 20%, rgba(164, 114, 255, 0.25), transparent 55%),
        radial-gradient(circle at 80% 10%, rgba(72, 215, 255, 0.2), transparent 45%),
        radial-gradient(circle at 60% 70%, rgba(72, 215, 255, 0.25), transparent 50%),
        #040714;
}

.top-bar {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 5vw;
    background: rgba(4, 7, 20, 0.9);
    border-bottom: 1px solid var(--color-frame);
    backdrop-filter: blur(16px);
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.logo img {
    height: 48px;
    width: auto;
    display: block;
}

footer .logo img {
    height: 56px;
}

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

.nav-toggle {
    display: none;
    background: transparent;
    border: 1px solid var(--color-frame);
    color: var(--color-text);
    padding: 0.4rem 0.9rem;
    border-radius: 0.75rem;
}

.nav-list {
    list-style: none;
    display: flex;
    gap: 1.6rem;
    margin: 0;
    padding: 0;
}

.nav-list a {
    color: var(--color-muted);
    text-decoration: none;
    font-weight: 500;
}

.nav-list a:hover,
.nav-list a:focus {
    color: var(--color-text);
}

.hero {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.4rem;
    padding: 4rem 5vw 3rem;
}

.hero-content h1 {
    font-size: clamp(2.6rem, 5vw, 3.8rem);
    margin-bottom: 1rem;
}

.hero p {
    color: var(--color-muted);
}

.eyebrow {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    color: var(--color-accent);
}

.hero-actions {
    margin-top: 2rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.hero-panel {
    border: 1px solid var(--color-frame);
    border-radius: 1.25rem;
    padding: 1.8rem;
    background: var(--color-panel);
    display: grid;
    gap: 0.8rem;
}

.hero-panel blockquote {
    margin: 0;
    font-size: 1.05rem;
    line-height: 1.5;
}

.hero-panel blockquote p {
    margin: 0 0 1rem;
    color: var(--color-text);
}

.hero-panel blockquote p:last-child {
    margin-bottom: 0;
}

.hero-panel .stat-label:last-of-type {
    margin-top: -0.3rem;
    text-transform: none;
    letter-spacing: 0.04em;
}

.stat-label {
    text-transform: uppercase;
    font-size: 0.78rem;
    letter-spacing: 0.2em;
    color: var(--color-muted);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
}

.section {
    padding: 4.5rem 5vw;
}

.section-heading {
    max-width: 60ch;
    margin-bottom: 3rem;
}

.cards-grid,
.platform-grid,
.resource-grid,
.industries-grid,
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.8rem;
}

.card,
.platform-grid article,
.resource-grid article,
.industries-grid article,
.contact-grid article {
    border: 1px solid var(--color-frame);
    border-radius: 1.25rem;
    padding: 2rem;
    background: var(--color-panel);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.card:hover,
.platform-grid article:hover,
.resource-grid article:hover,
.industries-grid article:hover,
.contact-grid article:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 255, 255, 0.35);
    box-shadow: 0 25px 70px rgba(4, 7, 20, 0.65);
}

.card ul,
.card p {
    color: var(--color-muted);
}

.card ul {
    margin: 1rem 0 1.5rem;
    padding-left: 1.2rem;
}

.label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    color: var(--color-accent);
}

.card-actions {
    margin-top: auto;
}

.btn-link {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 600;
}

.btn-link:hover,
.btn-link:focus {
    text-decoration: underline;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.9rem 2rem;
    border-radius: 999px;
    border: none;
    cursor: pointer;
    font-weight: 600;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(130deg, var(--color-primary), var(--color-accent));
    color: #040714;
}

.btn-secondary {
    border: 1px solid var(--color-frame);
    color: var(--color-text);
    background: transparent;
}

.footer {
    border-top: 1px solid var(--color-frame);
    padding: 3rem 5vw;
    background: rgba(4, 7, 20, 0.95);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
}

.footer a {
    color: var(--color-muted);
    text-decoration: none;
}

.footer-meta p {
    margin: 0.3rem 0;
    color: var(--color-muted);
}

@media (max-width: 800px) {
    .nav-toggle {
        display: inline-flex;
        align-items: center;
        gap: 0.4rem;
    }

    .nav-list {
        position: absolute;
        top: 140%;
        right: 5vw;
        flex-direction: column;
        gap: 0;
        border: 1px solid var(--color-frame);
        border-radius: 1rem;
        background: var(--color-panel);
        padding: 0.6rem 0;
        opacity: 0;
        pointer-events: none;
        transform: translateY(-10px);
        transition: opacity 0.2s ease, transform 0.2s ease;
    }

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

    .nav-list li {
        padding: 0.6rem 1.2rem;
    }
}