:root {
    --bg: #061615;
    --bg-2: #0a201e;
    --surface: rgba(255, 255, 255, 0.055);
    --surface-strong: rgba(255, 255, 255, 0.08);
    --border: rgba(255, 255, 255, 0.12);
    --text: #f2f5f3;
    --muted: #aab8b4;
    --accent: #2dd4bf;
    --accent-soft: rgba(45, 212, 191, 0.12);
    --max-width: 900px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    background:
        radial-gradient(circle at 15% 0%, rgba(45, 212, 191, 0.10), transparent 32rem),
        radial-gradient(circle at 90% 20%, rgba(45, 212, 191, 0.06), transparent 28rem),
        linear-gradient(145deg, var(--bg), var(--bg-2));
    color: var(--text);
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.75;
    min-height: 100vh;
}

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

a:hover {
    text-decoration: underline;
}

.container {
    width: min(calc(100% - 40px), var(--max-width));
    margin: 0 auto;
    padding: 70px 0 90px;
}

.header {
    margin-bottom: 42px;
    padding: 42px;
    border: 1px solid var(--border);
    border-radius: 24px;
    background: linear-gradient(145deg,
            rgba(255, 255, 255, 0.075),
            rgba(255, 255, 255, 0.025));
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.24);
}

.eyebrow {
    display: inline-block;
    margin-bottom: 14px;
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

h1 {
    margin: 0 0 14px;
    font-size: clamp(2.2rem, 6vw, 4rem);
    line-height: 1.05;
    letter-spacing: -0.04em;
}

.subtitle {
    margin: 0;
    max-width: 720px;
    color: var(--muted);
    font-size: 1.05rem;
}

.updated {
    display: inline-block;
    margin-top: 22px;
    padding: 8px 13px;
    border: 1px solid rgba(45, 212, 191, 0.22);
    border-radius: 999px;
    background: var(--accent-soft);
    color: #c8fff7;
    font-size: 0.85rem;
}

.notice {
    margin: 30px 0 42px;
    padding: 22px 24px;
    border-left: 3px solid var(--accent);
    border-radius: 0 14px 14px 0;
    background: var(--accent-soft);
    color: #d9f7f2;
}

section {
    margin: 0 0 38px;
    padding: 30px 32px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.035);
}

h2 {
    margin: 0 0 15px;
    font-size: 1.45rem;
    line-height: 1.25;
    letter-spacing: -0.02em;
}

h3 {
    margin: 24px 0 8px;
    font-size: 1.05rem;
}

p {
    margin: 0 0 14px;
    color: #d7dfdc;
}

p:last-child {
    margin-bottom: 0;
}

ul {
    margin: 12px 0 0;
    padding-left: 24px;
    color: #d7dfdc;
}

li {
    margin: 8px 0;
}

strong {
    color: #ffffff;
}

.footer {
    padding: 30px 0 0;
    color: var(--muted);
    text-align: center;
    font-size: 0.9rem;
}

.footer strong {
    color: var(--text);
}

@media (max-width: 640px) {
    .container {
        width: min(calc(100% - 24px), var(--max-width));
        padding-top: 28px;
        padding-bottom: 50px;
    }

    .header {
        padding: 28px 22px;
        border-radius: 20px;
    }

    section {
        padding: 24px 21px;
        border-radius: 17px;
    }

    h1 {
        font-size: 2.35rem;
    }
}