:root {
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-card: #1a1f35;
    --bg-card-hover: #222845;
    --text-primary: #f0f4ff;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-blue: #155cde;
    --accent-cyan: #2eb5f0;
    --accent-teal: #40daf2;
    --gradient-start: #155cde;
    --gradient-end: #2eb5f0;
    --border-subtle: rgba(148, 163, 184, 0.1);
    --warning-bg: rgba(46, 181, 240, 0.08);
}

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

html {
    font-size: 16px;
}

body {
    min-height: 100vh;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    letter-spacing: 0.2px;
}

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

a:hover {
    color: var(--accent-teal);
}

code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.95em;
}

.bg-grid {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(148, 163, 184, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148, 163, 184, 0.03) 1px, transparent 1px);
    background-size: 64px 64px;
    pointer-events: none;
    z-index: 0;
}

.bg-glow {
    position: fixed;
    width: 560px;
    height: 560px;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.12;
    pointer-events: none;
    z-index: 0;
}

.bg-glow-1 {
    top: -180px;
    left: -120px;
    background: var(--accent-blue);
}

.bg-glow-2 {
    top: 30%;
    right: -220px;
    background: var(--accent-teal);
}

.bg-glow-3 {
    bottom: -220px;
    left: 25%;
    background: var(--accent-cyan);
}

.container {
    position: relative;
    z-index: 1;
    width: min(1120px, calc(100% - 48px));
    margin: 0 auto;
}

nav {
    position: sticky;
    top: 0;
    z-index: 20;
    padding: 16px 0;
    background: rgba(10, 14, 26, 0.88);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
}

nav .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.nav-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--text-primary);
    font-weight: 700;
    letter-spacing: 0.8px;
}

.nav-brand img {
    width: 36px;
    height: 36px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 20px;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.92rem;
    font-weight: 500;
}

.nav-links a:hover {
    color: var(--text-primary);
}

.nav-cta {
    padding: 10px 18px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white !important;
    box-shadow: 0 4px 24px rgba(21, 92, 222, 0.25);
}

main {
    padding: 56px 0 72px;
}

.hero-shell {
    display: grid;
    gap: 24px;
}

.hero-card,
.panel,
.registry-link {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 24px;
}

.hero-card {
    padding: 40px;
    overflow: hidden;
    position: relative;
}

.hero-card::before {
    content: '';
    position: absolute;
    inset: 0 0 auto 0;
    height: 4px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(46, 181, 240, 0.1);
    border: 1px solid rgba(46, 181, 240, 0.18);
    color: var(--accent-cyan);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent-teal);
}

.hero-card h1 {
    margin-top: 20px;
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
    font-size: clamp(2.1rem, 5vw, 4rem);
    line-height: 1.08;
    font-weight: 800;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue), var(--accent-teal));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-summary {
    margin-top: 18px;
    max-width: 760px;
    color: var(--text-secondary);
    font-size: 1.06rem;
}

.code-banner {
    margin-top: 28px;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 16px;
    background: rgba(10, 14, 26, 0.55);
    border: 1px solid rgba(46, 181, 240, 0.16);
    font-family: 'JetBrains Mono', monospace;
    font-size: 1rem;
}

.hero-actions {
    margin-top: 28px;
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    border-radius: 14px;
    border: 1px solid var(--border-subtle);
    font-weight: 600;
    transition: transform 0.2s, border-color 0.2s, background 0.2s;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    border: none;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
}

.btn-secondary {
    background: rgba(17, 24, 39, 0.7);
    color: var(--text-primary);
}

.btn-secondary:hover {
    border-color: rgba(46, 181, 240, 0.2);
    color: var(--text-primary);
}

.meta-grid,
.panel-grid,
.registry-grid {
    display: grid;
    gap: 20px;
}

.meta-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.meta-card {
    padding: 22px 24px;
    background: rgba(17, 24, 39, 0.7);
    border: 1px solid var(--border-subtle);
    border-radius: 18px;
}

.meta-card .label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-muted);
    font-size: 0.78rem;
    letter-spacing: 1.2px;
    text-transform: uppercase;
}

.meta-card strong {
    display: block;
    font-size: 1.05rem;
}

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

.panel {
    padding: 28px;
}

.panel h2 {
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
    font-size: 1.35rem;
    margin-bottom: 14px;
}

.panel p {
    color: var(--text-secondary);
}

.panel ul,
.panel ol {
    margin-left: 20px;
    color: var(--text-secondary);
}

.panel li + li {
    margin-top: 10px;
}

.panel li strong,
.panel p strong {
    color: var(--text-primary);
}

.panel-callout {
    margin-top: 18px;
    padding: 14px 16px;
    border-radius: 14px;
    background: var(--warning-bg);
    border: 1px solid rgba(46, 181, 240, 0.12);
}

.overview-copy {
    max-width: 760px;
}

.overview-copy p {
    margin-top: 18px;
    color: var(--text-secondary);
    font-size: 1.04rem;
}

.registry-grid {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.registry-link {
    display: block;
    padding: 24px;
    transition: transform 0.2s, border-color 0.2s, background 0.2s;
}

.registry-link:hover {
    transform: translateY(-3px);
    border-color: rgba(46, 181, 240, 0.2);
    background: var(--bg-card-hover);
}

.registry-code {
    display: inline-block;
    margin-bottom: 12px;
    padding: 5px 10px;
    border-radius: 999px;
    background: rgba(46, 181, 240, 0.1);
    color: var(--accent-cyan);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
}

.registry-link h3 {
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.registry-link p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.registry-link .registry-symbol {
    margin-top: 14px;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
}

footer {
    padding: 0 0 56px;
}

footer .container {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    color: var(--text-muted);
    font-size: 0.88rem;
}

footer a {
    color: var(--text-secondary);
}

@media (max-width: 900px) {
    .meta-grid,
    .panel-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 720px) {
    nav .container,
    footer .container {
        flex-direction: column;
        align-items: flex-start;
    }

    .nav-links {
        flex-wrap: wrap;
    }

    main {
        padding-top: 32px;
    }

    .hero-card,
    .panel {
        padding: 24px;
    }

    .container {
        width: min(1120px, calc(100% - 32px));
    }
}