/* Base */

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    background: radial-gradient(circle at top, #222842 0, #050711 55%, #02030a 100%);
    color: #f5f5f5;
    -webkit-font-smoothing: antialiased;
}

main {
    padding-top: 72px; 
}

/* Navigation */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    backdrop-filter: blur(14px);
    background: linear-gradient(to bottom, rgba(3, 5, 15, 0.92), rgba(3, 5, 15, 0.75));
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-inner {
    max-width: 960px;
    margin: 0 auto;
    padding: 10px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-logo {
    width: 28px;
    height: 28px;
    border-radius: 999px;
}

.nav-brand {
    font-size: 14px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    opacity: 0.88;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 13px;
}

.nav-links a {
    text-decoration: none;
    color: #dcdcdc;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 11px;
}

.nav-links a:hover {
    opacity: 1;
}

/* Hero */

.hero {
    min-height: calc(100vh - 72px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 16px 40px;
}

.hero-card {
    max-width: 420px;
    width: 100%;
    text-align: center;
    padding: 32px 28px 30px;
    border-radius: 22px;
    background: radial-gradient(circle at top, rgba(255, 255, 255, 0.06), rgba(3, 5, 15, 0.9));
    box-shadow:
        0 28px 80px rgba(0, 0, 0, 0.8),
        0 0 0 1px rgba(255, 255, 255, 0.02);
    opacity: 0;
    transform: translateY(10px);
    animation: heroFadeIn 0.8s ease-out forwards;
}

.logo {
    width: 120px;
    height: 120px;
    border-radius: 20px;
    margin-bottom: 20px;
}

h1 {
    margin: 0 0 10px;
    font-size: 18px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.tagline {
    margin: 0 0 22px;
    font-size: 13px;
    line-height: 1.7;
    opacity: 0.85;
}

/* Button */

.btn {
    display: inline-block;
    padding: 11px 26px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.35);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    background: rgba(255, 255, 255, 0.95);
    color: #050816;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.6);
    transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.7);
    background: #ffffff;
}

/* Sections */

.section {
    max-width: 760px;
    margin: 0 auto;
    padding: 36px 20px 8px;
}

.section-small {
    padding-bottom: 24px;
}

.section h2 {
    margin: 0 0 12px;
    font-size: 16px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.section-subtitle {
    margin: 0 0 12px;
    opacity: 0.9;
    font-size: 13px;
    line-height: 1.7;
}

.points {
    margin: 0 0 16px 18px;
    padding: 0;
    font-size: 13px;
    line-height: 1.7;
}

.points li {
    margin-bottom: 4px;
}

.section-note {
    margin: 0;
    opacity: 0.78;
    font-size: 12px;
    line-height: 1.6;
}

.roadmap-list {
    margin: 0 0 6px 18px;
    padding: 0;
    font-size: 13px;
    line-height: 1.7;
}

.roadmap-list li {
    margin-bottom: 6px;
}

.link-inline {
    color: #e0e0ff;
    text-decoration: none;
}

.link-inline:hover {
    text-decoration: underline;
}

/* Footer */

.footer {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 12px 20px 18px;
    font-size: 11px;
    opacity: 0.78;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 6px;
    max-width: 960px;
    margin: 0 auto;
}

/* Responsive */
.pillars {
    padding-top: 8px;
    padding-bottom: 8px;
}

.pillars-grid {
    margin-top: 14px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.pillar-card {
    padding: 14px 14px 16px;
    border-radius: 14px;
    background: radial-gradient(circle at top left,
        rgba(255, 255, 255, 0.06),
        rgba(3, 5, 15, 0.96));
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.7);
    font-size: 12px;
    line-height: 1.6;
    opacity: 0.92;
}

.pillar-card h3 {
    margin: 0 0 6px;
    font-size: 13px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
@keyframes heroFadeIn {
    from {
        opacity: 0;
        transform: translateY(18px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@media (max-width: 720px) {
    .pillars-grid {
        grid-template-columns: 1fr;
    }
    .nav-inner {
        padding-inline: 14px;
        gap: 8px;
    }

    .nav-links {
        gap: 8px;
        font-size: 10px;
    }

    .hero-card {
        padding: 26px 20px 26px;
    }

    .logo {
        width: 104px;
        height: 104px;
    }

    .tagline {
        font-size: 12px;
    }

    .section {
        padding-inline: 18px;
    }

    .footer {
        flex-direction: column;
        align-items: flex-start;
        padding-inline: 18px;
    }
}