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

:root {
    --bg: #010102;
    --bg-card: #060610;
    --border: #111118;
    --text: #e8e8ec;
    --text-dim: #6b6b78;
    --white: #ffffff;
    --glow: rgba(255, 255, 255, 0.08);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Topbar */
.topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 40px;
    background: rgba(5, 5, 8, 0.7);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.topbar-text {
    font-size: 13px;
    color: var(--text-dim);
    letter-spacing: 0.5px;
}

.topbar-text strong {
    color: var(--white);
    font-weight: 600;
}

.topbar-links {
    display: flex;
    gap: 24px;
}

.topbar-link {
    font-size: 13px;
    color: var(--text-dim);
    text-decoration: none;
    transition: color 0.2s;
    letter-spacing: 0.3px;
}

.topbar-link:hover {
    color: var(--white);
}

/* Hero */
.hero {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 120px 24px 80px;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-dim);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 32px;
    background: var(--glow);
}

.hero-title {
    font-size: clamp(48px, 10vw, 96px);
    font-weight: 900;
    letter-spacing: -2px;
    line-height: 1;
    margin-bottom: 24px;
}

.shine {
    background: linear-gradient(
        135deg,
        #ffffff 0%,
        #ffffff 40%,
        #888888 50%,
        #ffffff 60%,
        #ffffff 100%
    );
    background-size: 200% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shineShift 4s ease-in-out infinite;
    filter: drop-shadow(0 0 40px rgba(255,255,255,0.1));
}

@keyframes shineShift {
    0%, 100% {
        background-position: 200% center;
    }
    50% {
        background-position: 0% center;
    }
}

.hero-description {
    max-width: 540px;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-dim);
    margin-bottom: 48px;
}

/* Buttons */
.actions {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
    flex-wrap: wrap;
    justify-content: center;
}

.actions-secondary {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
    font-family: inherit;
}

.btn-primary {
    background: var(--white);
    color: var(--bg);
}

.btn-primary:hover {
    background: #e0e0e0;
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(255,255,255,0.15);
}

.btn-secondary {
    background: #1a1a22;
    color: var(--white);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: #222230;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--text-dim);
    border: 1px solid var(--border);
    padding: 10px 20px;
    border-radius: 10px;
    font-size: 13px;
}

.btn-outline:hover {
    color: var(--white);
    border-color: #333;
    background: var(--glow);
}

/* Quick Install */
.quick-install {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
    padding: 0 24px 80px;
}

.quick-install-inner {
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg-card);
    overflow: hidden;
}

.quick-install-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    font-size: 12px;
    font-weight: 500;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.quick-install-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 16px;
}

.quick-install-row code {
    flex: 1;
    font-family: 'SF Mono', 'Consolas', monospace;
    font-size: 13px;
    color: var(--text);
    overflow-x: auto;
    white-space: nowrap;
}

.copy-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: transparent;
    color: var(--text-dim);
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
}

.copy-btn:hover {
    color: var(--white);
    border-color: #333;
    background: var(--glow);
}

.copy-btn.copied {
    color: #4ade80;
    border-color: #4ade80;
}

/* System Requirements */
.sysreq {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
    padding: 0 24px 120px;
}

.sysreq-inner h2 {
    font-size: 22px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
}

.sysreq-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.sysreq-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 16px 20px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg-card);
}

.sysreq-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sysreq-value {
    font-size: 14px;
    font-weight: 500;
    color: var(--white);
}

/* Showcase */
.showcase {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 24px 100px;
}

.showcase-inner {
    display: flex;
    align-items: center;
    gap: 40px;
}

.showcase-text {
    flex: 0 0 220px;
}

.showcase-text h2 {
    font-size: 22px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 10px;
}

.showcase-text p {
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-dim);
    margin-bottom: 20px;
}

.showcase-image {
    flex: 1;
    min-width: 0;
}

.showcase-image img {
    width: 105%;
    height: auto;
    border-radius: 0;
    display: block;
    margin-left: auto;
}

/* Features */
.features {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 24px 120px;
}

.features-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.features-header h2 {
    font-size: 22px;
    font-weight: 700;
    color: var(--white);
}

.whats-new-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-dim);
    text-decoration: none;
    transition: all 0.2s;
}

.whats-new-link:hover {
    border-color: #333;
    color: var(--white);
    background: var(--glow);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.feature-card {
    padding: 32px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--bg-card);
    transition: border-color 0.3s, background 0.3s;
}

.feature-card:hover {
    border-color: #2a2a35;
    background: #0f0f15;
}

.feature-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    margin-bottom: 20px;
    color: var(--white);
}

.feature-card h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--white);
}

.feature-card p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-dim);
}

/* Footer */
.footer {
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--border);
    padding: 60px 24px 24px;
}

.footer-inner {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand {
    max-width: 260px;
}

.footer-logo {
    font-size: 18px;
    font-weight: 800;
    color: var(--white);
    display: block;
    margin-bottom: 8px;
}

.footer-brand p {
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-dim);
}

.footer-links {
    display: flex;
    gap: 48px;
}

.footer-col h4 {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.footer-col a {
    display: block;
    font-size: 13px;
    color: #555;
    text-decoration: none;
    padding: 4px 0;
    transition: color 0.2s;
}

.footer-col a:hover {
    color: var(--white);
}

.footer-bottom {
    max-width: 900px;
    margin: 0 auto;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-bottom p {
    font-size: 12px;
    color: #333;
}

/* Stats Bar */
.stats-bar {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
    padding: 0 24px 80px;
}

.stats-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    padding: 28px 40px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--bg-card);
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.stat-number {
    font-size: 28px;
    font-weight: 800;
    color: var(--white);
    letter-spacing: -1px;
    font-variant-numeric: tabular-nums;
}

.stat-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-divider {
    width: 1px;
    height: 36px;
    background: var(--border);
}

/* Responsive */
@media (max-width: 640px) {
    .topbar {
        padding: 14px 20px;
    }

    .topbar-links {
        gap: 16px;
    }

    .hero {
        padding: 100px 20px 60px;
    }

    .hero-title {
        letter-spacing: -1px;
    }

    .hero-description {
        font-size: 15px;
    }

    .actions {
        flex-direction: column;
        width: 100%;
        max-width: 320px;
    }

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

    .actions-secondary {
        flex-direction: column;
        width: 100%;
        max-width: 320px;
    }

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

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

    .stats-inner {
        flex-direction: column;
        gap: 20px;
        padding: 24px;
    }

    .stat-divider {
        width: 40px;
        height: 1px;
    }

    .stat-number {
        font-size: 24px;
    }

    .features-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

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

    .showcase-inner {
        flex-direction: column;
        padding: 32px;
        gap: 32px;
    }

    .footer-inner {
        flex-direction: column;
        gap: 32px;
    }

    .footer-brand {
        max-width: 100%;
    }

    .footer-links {
        flex-wrap: wrap;
        gap: 32px;
    }
}

/* Lightbox */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    cursor: pointer;
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox img {
    max-width: 90vw;
    max-height: 90vh;
    border-radius: 0;
    box-shadow: 0 20px 80px rgba(0, 0, 0, 0.5);
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.lightbox.active img {
    transform: scale(1);
}

/* 404 Page */
.page-404 {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 24px;
    text-align: center;
}

.page-404-code {
    font-size: clamp(80px, 20vw, 160px);
    font-weight: 900;
    letter-spacing: -4px;
    background: linear-gradient(135deg, #ffffff 0%, #444 50%, #ffffff 100%);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shineShift 4s ease-in-out infinite;
    line-height: 1;
    margin-bottom: 16px;
}

.page-404-text {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-dim);
    margin-bottom: 32px;
}

.page-404 .btn {
    margin: 4px;
}