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

:root {
    --bg: #070d12;
    --bg-layer: #0e171f;
    --bg-card: #121f2a;
    --border: #223240;
    --text: #eaf4f8;
    --muted: #9ab0bc;
    --accent: #53e7cf;
    --accent-strong: #70f0db;
    --ring: rgba(83, 231, 207, 0.45);
    --shadow: 0 12px 36px rgba(0, 0, 0, 0.28);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: Inter, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background:
        radial-gradient(circle at 20% -10%, rgba(83, 231, 207, 0.15), transparent 32%),
        radial-gradient(circle at 100% 10%, rgba(88, 153, 255, 0.12), transparent 35%),
        var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.skip-link {
    position: absolute;
    left: 12px;
    top: -40px;
    background: var(--accent);
    color: #001811;
    padding: 8px 12px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    z-index: 10;
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 12px;
}

.container {
    width: min(1040px, 100% - 48px);
    margin: 0 auto;
}

.hero,
section {
    border-bottom: 1px solid var(--border);
}

.hero {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items: center;
    padding: 88px 0 72px;
}

.status {
    display: inline-block;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    background: rgba(83, 231, 207, 0.12);
    border: 1px solid rgba(83, 231, 207, 0.32);
    border-radius: 999px;
    padding: 6px 12px;
    margin-bottom: 22px;
}

h1 {
    font-size: clamp(36px, 6vw, 58px);
    line-height: 1.08;
    letter-spacing: -0.03em;
    margin-bottom: 18px;
}

h2 {
    font-size: clamp(26px, 3vw, 32px);
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

h3 {
    font-size: 18px;
    line-height: 1.3;
    margin-bottom: 8px;
}

.tagline {
    font-size: clamp(18px, 2.1vw, 22px);
    color: var(--muted);
    max-width: 56ch;
    margin-bottom: 30px;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 18px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid transparent;
    transition: transform 0.2s ease, background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

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

.btn-primary {
    color: #052018;
    background-color: var(--accent);
    border-color: var(--accent);
}

.btn-primary:hover {
    background-color: var(--accent-strong);
    border-color: var(--accent-strong);
}

.btn-ghost {
    color: var(--text);
    background: transparent;
    border-color: var(--border);
}

.btn-ghost:hover {
    border-color: var(--muted);
}

.btn:focus-visible,
.footer a:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px var(--ring);
}

.hero-stats {
    display: grid;
    gap: 12px;
}

.stat-card {
    background: linear-gradient(165deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01));
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 18px;
    box-shadow: var(--shadow);
}

.stat-label {
    display: block;
    font-size: 12px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 6px;
}

.stat-card strong {
    font-size: 18px;
}

section {
    padding: 64px 0;
}

.about p,
.cta p {
    color: var(--muted);
    max-width: 70ch;
}

.about .note {
    margin-top: 18px;
    border-left: 3px solid var(--border);
    padding-left: 14px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 24px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 18px;
    transition: border-color 0.2s ease, transform 0.2s ease;
}

.card:hover {
    border-color: rgba(83, 231, 207, 0.35);
    transform: translateY(-2px);
}

.card p {
    font-size: 15px;
    color: var(--muted);
}

.roadmap ul {
    list-style: none;
    margin-top: 18px;
}

.roadmap li {
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    color: var(--muted);
}

.roadmap li:first-child {
    border-top: 1px solid var(--border);
}

.roadmap li::before {
    content: "•";
    color: var(--accent);
    margin-right: 10px;
}

.cta {
    display: grid;
    gap: 18px;
}

.footer {
    padding: 36px 0 58px;
    text-align: center;
    color: var(--muted);
    font-size: 14px;
    border-bottom: none;
}

.footer a {
    color: var(--muted);
    text-decoration: none;
    border-bottom: 1px solid var(--border);
    padding-bottom: 2px;
    transition: color 0.2s ease, border-color 0.2s ease;
}

.footer a:hover {
    color: var(--accent);
    border-color: var(--accent);
}

@media (max-width: 900px) {
    .hero {
        grid-template-columns: 1fr;
        padding-top: 72px;
    }

    .hero-stats {
        grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    }
}

@media (max-width: 640px) {
    .container {
        width: min(1040px, 100% - 32px);
    }

    section {
        padding: 52px 0;
    }

    .hero {
        padding: 56px 0 48px;
        gap: 28px;
    }

    .btn {
        width: 100%;
    }
}

.home-link {
    margin: 0 0 16px;
    font-size: 0.9rem;
}

.home-link a {
    color: inherit;
    opacity: 0.75;
    text-decoration: none;
}

.home-link a:hover,
.home-link a:focus-visible {
    opacity: 1;
    text-decoration: underline;
}