/* Global tokens */
:root {
    --bg-gradient-start: #0b0f1b;
    --bg-gradient-end: #16213a;
    --accent: #4d9ef8;
    --accent-soft: rgba(77, 158, 248, 0.12);
    --accent-strong: #61f2d1;
    --surface: rgba(18, 24, 39, 0.72);
    --surface-elevated: rgba(24, 32, 54, 0.88);
    --text-primary: #f4f7ff;
    --text-secondary: rgba(244, 247, 255, 0.72);
    --border: rgba(255, 255, 255, 0.06);
    --shadow: 0 18px 45px rgba(5, 8, 18, 0.45);
    --radius-xl: 28px;
    --radius-lg: 20px;
    --radius-md: 16px;
    --radius-sm: 12px;
    --section-padding: clamp(4rem, 6vw, 6rem);
    --max-width: min(1200px, 92vw);
}

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

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Space Grotesk", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text-primary);
    background: radial-gradient(circle at top left, #1b2a4a 0%, var(--bg-gradient-start) 35%, var(--bg-gradient-end) 100%);
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background: radial-gradient(circle at 10% 20%, rgba(77, 158, 248, 0.18), transparent 35%),
        radial-gradient(circle at 90% 10%, rgba(97, 242, 209, 0.12), transparent 45%),
        radial-gradient(circle at 50% 90%, rgba(140, 107, 255, 0.16), transparent 45%);
    z-index: -3;
    animation: pulse 16s ease-in-out infinite;
}

.noise-layer {
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160' fill='none'%3E%3Cfilter id='n' x='0' y='0' width='160' height='160'%3C/filter%3E%3Cg filter='url(%23n)'%3E%3Cpath fill='rgba(255,255,255,0.03)' d='M0 0h160v160H0z'/%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.35;
    mix-blend-mode: soft-light;
    z-index: -2;
}

.orb {
    position: fixed;
    width: 38rem;
    height: 38rem;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.6;
    z-index: -1;
    animation: drift 40s ease-in-out infinite;
}

.orb-1 {
    top: -12rem;
    left: -10rem;
    background: #4d9ef8;
}

.orb-2 {
    top: 60%;
    right: -14rem;
    background: #61f2d1;
    animation-delay: -12s;
}

.orb-3 {
    top: 20%;
    right: 20%;
    background: #886bff;
    animation-delay: -22s;
}

.site-header {
    position: relative;
    padding: 2.5rem 0 0;
}

.nav {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem clamp(1.5rem, 4vw, 3rem);
    margin: 0 auto;
    width: min(1120px, 92vw);
    backdrop-filter: blur(18px);
    background: linear-gradient(135deg, rgba(11, 15, 27, 0.88), rgba(22, 33, 58, 0.42));
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
    transition: transform 0.5s ease, background 0.5s ease;
}

.nav.scrolled {
    background: linear-gradient(135deg, rgba(14, 21, 38, 0.95), rgba(13, 24, 46, 0.85));
}

.logo {
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: 0.04em;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: color 0.3s ease, transform 0.3s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
    color: var(--accent);
    transform: translateY(-2px);
}

.nav-links a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -0.55rem;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0;
    transform: scaleX(0.5);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.nav-links a[data-active="true"] {
    color: var(--accent);
}

.nav-links a[data-active="true"]::after {
    opacity: 1;
    transform: scaleX(1);
}

.hero {
    display: grid;
    gap: 3rem;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    align-items: center;
    padding: var(--section-padding) clamp(1.5rem, 4vw, 3rem) clamp(4rem, 7vw, 6rem);
    width: min(1120px, 90vw);
    margin: 0 auto;
}

.hero-content h1 {
    font-size: clamp(2.6rem, 6vw, 3.8rem);
    line-height: 1.05;
    margin: 0.75rem 0 1rem;
    letter-spacing: -0.02em;
}

.hero-content p {
    margin: 0 0 1.75rem;
    color: var(--text-secondary);
    max-width: 32rem;
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.32em;
    font-size: 0.75rem;
    color: rgba(244, 247, 255, 0.54);
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.6rem;
    border-radius: 999px;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-decoration: none;
    transition: transform 0.35s ease, box-shadow 0.35s ease, background 0.35s ease, color 0.35s ease;
    border: 1px solid transparent;
}

.btn.primary {
    background: linear-gradient(135deg, var(--accent), #86b9ff);
    color: #050c1a;
    box-shadow: 0 22px 45px rgba(77, 158, 248, 0.4);
}

.btn.secondary {
    background: transparent;
    border-color: rgba(97, 242, 209, 0.6);
    color: var(--accent-strong);
}

.btn:hover,
.btn:focus-visible {
    transform: translateY(-3px);
    box-shadow: 0 28px 58px rgba(77, 158, 248, 0.45);
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding: 0;
    margin: 0;
    list-style: none;
}

.hero-badges li {
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    background: rgba(77, 158, 248, 0.1);
    border: 1px solid rgba(77, 158, 248, 0.25);
    font-size: 0.82rem;
    color: rgba(244, 247, 255, 0.7);
    backdrop-filter: blur(10px);
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.grid-card {
    width: min(360px, 85vw);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    background: linear-gradient(165deg, rgba(19, 30, 52, 0.9), rgba(10, 16, 31, 0.8));
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
    transform-style: preserve-3d;
    animation: float 8s ease-in-out infinite;
}

.grid-header,
.grid-footer {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, max-content));
    align-items: center;
    gap: 0.75rem;
    font-size: 0.85rem;
    color: rgba(244, 247, 255, 0.7);
}

.grid-header {
    margin-bottom: 1.25rem;
}

.grid-footer {
    margin-top: 1.25rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 1rem;
}

.grid-disclaimer {
    margin: 0.75rem 0 0;
    font-size: 0.72rem;
    color: rgba(244, 247, 255, 0.55);
    text-align: center;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-strong), #86ffdf);
    box-shadow: 0 0 12px rgba(97, 242, 209, 0.7);
}

.grid-body {
    display: grid;
    gap: 0.75rem;
    font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
    font-size: 0.85rem;
}

.scan-row {
    display: grid;
    grid-template-columns: 1.6fr 0.8fr 0.8fr;
    align-items: center;
    padding: 0.65rem;
    border-radius: var(--radius-sm);
    background: rgba(8, 12, 24, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.scan-row.pending {
    border-style: dashed;
    border-color: rgba(255, 255, 255, 0.12);
    color: rgba(244, 247, 255, 0.45);
}

.scan-row.offline {
    opacity: 0.55;
}

.scan-ping {
    justify-self: end;
}

.scan-ping.good {
    color: #61f2d1;
}

.scan-ping.great {
    color: #b6f27b;
}

.scan-ping.avg {
    color: #ffd166;
}

.scan-version {
    justify-self: end;
    background: rgba(97, 242, 209, 0.12);
    border-radius: 999px;
    padding: 0.25rem 0.6rem;
    color: rgba(206, 244, 232, 0.82);
}

.metric-label {
    color: rgba(244, 247, 255, 0.58);
}

.metric-value {
    font-weight: 600;
}

.metric-value.healthy {
    color: var(--accent-strong);
}

.section {
    padding: var(--section-padding) 0;
}

.section-heading {
    width: var(--max-width);
    margin: 0 auto clamp(3rem, 6vw, 4rem);
}

.section-heading h2 {
    font-size: clamp(2.1rem, 4.5vw, 3rem);
    margin: 0.6rem 0 0.8rem;
}

.section-heading p {
    margin: 0;
    color: var(--text-secondary);
    max-width: 45ch;
    line-height: 1.6;
}

.feature-grid {
    width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.8rem;
}

.feature-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.9rem 1.8rem;
    position: relative;
    overflow: hidden;
    transition: transform 0.45s ease, border 0.45s ease, box-shadow 0.45s ease, background 0.45s ease;
    backdrop-filter: blur(16px);
}

.feature-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top right, rgba(77, 158, 248, 0.22), transparent 55%);
    opacity: 0;
    transition: opacity 0.45s ease;
}

.feature-card:hover,
.feature-card:focus-within {
    transform: translateY(-8px);
    border-color: rgba(77, 158, 248, 0.45);
    box-shadow: 0 25px 45px rgba(9, 16, 34, 0.45);
}

.feature-card:hover::after,
.feature-card:focus-within::after {
    opacity: 1;
}

.feature-icon {
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    border-radius: 16px;
    margin-bottom: 1rem;
    background: rgba(77, 158, 248, 0.12);
    border: 1px solid rgba(77, 158, 248, 0.2);
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    fill: var(--accent);
}

.feature-card h3 {
    margin: 0 0 0.6rem;
    font-size: 1.2rem;
}

.feature-card p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.55;
}

.split {
    background: rgba(11, 16, 30, 0.6);
}

.architecture-timeline {
    width: var(--max-width);
    margin: 0 auto;
    position: relative;
    padding-left: clamp(1rem, 3vw, 2rem);
    border-left: 1px dashed rgba(255, 255, 255, 0.12);
    display: grid;
    gap: 2.5rem;
}

.timeline-item {
    position: relative;
    padding-left: 1.4rem;
}

.timeline-dot {
    position: absolute;
    top: 0.45rem;
    left: -1.65rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid rgba(97, 242, 209, 0.5);
    background: linear-gradient(135deg, rgba(97, 242, 209, 0.9), rgba(77, 158, 248, 0.65));
    box-shadow: 0 0 14px rgba(97, 242, 209, 0.65);
}

.timeline-item h3 {
    margin: 0 0 0.4rem;
}

.timeline-item p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.6;
}

.quick-start .qs-content {
    width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2.2rem;
}

.qs-steps ol {
    margin: 0;
    padding-left: 1.4rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.qs-code pre {
    margin: 0;
    padding: 1.6rem;
    background: rgba(7, 12, 22, 0.72);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow);
    overflow-x: auto;
}

.qs-code code {
    color: rgba(214, 239, 255, 0.92);
    font-size: 0.9rem;
    line-height: 1.7;
    display: block;
}

.qs-footer {
    width: var(--max-width);
    margin: clamp(2.8rem, 6vw, 4rem) auto 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.6rem;
}

.qs-card {
    background: rgba(13, 18, 32, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: 1.6rem 1.5rem;
    color: var(--text-secondary);
    line-height: 1.65;
    transition: transform 0.4s ease, border 0.4s ease;
}

.qs-card:hover,
.qs-card:focus-within {
    transform: translateY(-6px);
    border-color: rgba(77, 158, 248, 0.42);
}

.metrics {
    padding: clamp(3.5rem, 5vw, 5rem) 0;
}

.metric-grid {
    width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.6rem;
}

.metric-card {
    background: var(--surface-elevated);
    border-radius: var(--radius-lg);
    padding: 1.8rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    text-align: center;
    box-shadow: var(--shadow);
}

.metric-number {
    display: block;
    font-size: clamp(2.2rem, 5vw, 3.2rem);
    font-weight: 700;
    margin-bottom: 0.6rem;
    color: var(--accent-strong);
}

.metric-label {
    display: block;
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--text-secondary);
}

.ethics-grid {
    width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.ethics-card {
    background: rgba(11, 18, 34, 0.8);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 1.8rem 1.6rem;
    color: var(--text-secondary);
    line-height: 1.65;
    transition: transform 0.35s ease, border 0.35s ease;
}

.ethics-card:hover,
.ethics-card:focus-within {
    transform: translateY(-5px);
    border-color: rgba(97, 242, 209, 0.42);
}

.site-footer {
    padding: 3rem 0;
    background: rgba(4, 8, 16, 0.68);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(16px);
}

.footer-content {
    width: var(--max-width);
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 1.6rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.footer-links a {
    color: rgba(244, 247, 255, 0.75);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover,
.footer-links a:focus-visible {
    color: var(--accent);
}

.section-note {
    margin: 1.6rem auto 0;
    width: min(760px, 90vw);
    font-size: 0.85rem;
    color: rgba(244, 247, 255, 0.6);
    text-align: center;
}

.page-hero {
    width: min(960px, 92vw);
    margin: 0 auto;
    padding: clamp(3.5rem, 6vw, 5rem) clamp(1.5rem, 4vw, 3rem) clamp(2.5rem, 5vw, 3.5rem);
    text-align: center;
}

.page-hero h1 {
    margin: 0.8rem 0 1rem;
    font-size: clamp(2.4rem, 5vw, 3.4rem);
    letter-spacing: -0.01em;
}

.page-hero p {
    margin: 0 auto;
    max-width: 44rem;
    color: var(--text-secondary);
}

.page-hero .hero-actions {
    justify-content: center;
}

.content-grid {
    width: var(--max-width);
    margin: 0 auto;
    display: grid;
    gap: 1.75rem;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.content-card {
    background: rgba(12, 17, 31, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 1.8rem 1.9rem;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.content-card h3 {
    margin: 0;
    font-size: 1.3rem;
}

.content-card p {
    margin: 0;
    color: var(--text-secondary);
}

.content-card ul {
    margin: 0;
    padding-left: 1.1rem;
    color: var(--text-secondary);
}

.content-card li + li {
    margin-top: 0.45rem;
}

.content-card li strong {
    color: var(--text-primary);
}

.content-card code {
    font-size: 0.85rem;
    background: rgba(77, 158, 248, 0.15);
    padding: 0.2rem 0.45rem;
    border-radius: 8px;
}

.content-card pre {
    margin: 0;
    padding: 1.1rem 1.4rem;
    background: rgba(7, 12, 22, 0.72);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow);
    font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
    font-size: 0.85rem;
    overflow-x: auto;
}

.link-grid {
    width: var(--max-width);
    margin: 0 auto;
    display: grid;
    gap: 1.65rem;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.link-card {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    padding: 1.9rem;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(77, 158, 248, 0.18);
    background: rgba(14, 22, 38, 0.78);
    text-decoration: none;
    color: var(--text-primary);
    box-shadow: var(--shadow);
    transition: transform 0.35s ease, border 0.35s ease, box-shadow 0.35s ease;
}

.link-card:hover,
.link-card:focus-visible {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: 0 25px 55px rgba(77, 158, 248, 0.35);
}

.link-card strong {
    font-size: 1.2rem;
}

.link-card p {
    margin: 0;
    color: var(--text-secondary);
}

.link-label {
    margin-top: auto;
    font-size: 0.85rem;
    color: var(--accent);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.link-label::after {
    content: "->";
    font-size: 0.75rem;
}

.fact-grid {
    width: var(--max-width);
    margin: 2.5rem auto 0;
    display: grid;
    gap: 1.2rem;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.fact-card {
    padding: 1.35rem 1.5rem;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(10, 16, 30, 0.72);
    color: var(--text-secondary);
    box-shadow: var(--shadow);
    font-size: 0.92rem;
}

.fact-card strong {
    display: block;
    margin-bottom: 0.4rem;
    color: var(--text-primary);
    font-size: 1rem;
}

/* Reveal effect */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.9s cubic-bezier(0.19, 1, 0.22, 1), transform 0.9s cubic-bezier(0.19, 1, 0.22, 1);
}

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

/* Keyframes */
@keyframes pulse {
    0%,
    100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.03);
    }
}

@keyframes drift {
    0%,
    100% {
        transform: translate3d(0, 0, 0) scale(1);
    }
    50% {
        transform: translate3d(12px, -30px, 0) scale(1.05);
    }
}

@keyframes float {
    0%,
    100% {
        transform: translate3d(0, 0, 0) rotateX(0deg);
    }
    50% {
        transform: translate3d(0, -14px, 0) rotateX(2deg);
    }
}

/* Responsive tweaks */
@media (max-width: 768px) {
    .nav {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero {
        padding-top: clamp(3.5rem, 7vw, 4.5rem);
    }

    .hero-actions {
        justify-content: center;
    }

    .grid-card {
        animation: float 10s ease-in-out infinite;
    }

    .architecture-timeline {
        padding-left: 1.4rem;
    }

    .timeline-dot {
        left: -1.4rem;
    }
}

@media (max-width: 520px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content p {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-badges {
        justify-content: center;
    }

    .grid-card {
        width: 100%;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .metric-grid,
    .ethics-grid,
    .qs-footer,
    .content-grid,
    .link-grid,
    .fact-grid {
        grid-template-columns: 1fr;
    }
}