:root {
    --primary: #245b8f;
    --primary-dark: #1c476f;
    --text: #333333;
    --muted: #667085;
    --bg: #eef3f8;
    --card: #ffffff;
    --line: #d8e1ea;
    --note-bg: #f1f6fb;
    --warn-bg: #fff6df;
    --shadow: 0 10px 30px rgba(22, 39, 58, 0.1);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Arial, "Helvetica Neue", sans-serif;
    line-height: 1.65;
    color: var(--text);
    background:
        radial-gradient(circle at top, rgba(36, 91, 143, 0.12), transparent 32%),
        linear-gradient(180deg, #f6f9fc 0%, var(--bg) 100%);
}

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

a:hover {
    text-decoration: underline;
}

.hero {
    padding: 1.25rem 1rem 2.25rem;
    color: #ffffff;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

.topnav,
.hero__content,
.layout,
.footer {
    width: min(980px, calc(100% - 2rem));
    margin: 0 auto;
}

.topnav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
    justify-content: center;
}

.topnav a {
    color: #ecf4fb;
    font-size: 0.95rem;
}

.hero__content {
    margin-top: 1.5rem;
    text-align: center;
}

.eyebrow {
    margin: 0;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: #d8e8f7;
}

h1,
h2,
h3 {
    color: var(--primary);
}

h1 {
    margin: 0.35rem 0 0;
    color: #ffffff;
    font-size: clamp(2rem, 5vw, 3.25rem);
    line-height: 1.1;
}

h2 {
    margin: 0 0 1rem;
    padding-bottom: 0.45rem;
    border-bottom: 1px solid var(--line);
}

h3 {
    margin: 1.5rem 0 0.5rem;
}

p,
li {
    margin: 0.85rem 0;
}

ul {
    padding-left: 1.2rem;
}

.news-date {
    margin: 0.65rem 0 0;
    color: #dce9f7;
}

.intro {
    max-width: 760px;
    margin: 0.85rem auto 0;
    color: #edf6ff;
}

.layout {
    margin-top: -1.2rem;
    margin-bottom: 2rem;
    padding: 2rem;
    border-radius: 18px;
    background: var(--card);
    box-shadow: var(--shadow);
}

.layout section + section {
    margin-top: 2.5rem;
}

.toc {
    padding: 1rem 1.25rem;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #f8fbfe;
}

.toc ul {
    margin-bottom: 0;
}

.note,
.warn,
.legal {
    padding: 1rem 1.1rem;
    border-left: 4px solid var(--primary);
    border-radius: 10px;
}

.note {
    background: var(--note-bg);
}

.warn {
    border-left-color: #d4a000;
    background: var(--warn-bg);
}

.legal {
    border-left-color: #64748b;
    background: #f8fafc;
}

.footer {
    padding: 0 0 2rem;
    text-align: center;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1rem;
    justify-content: center;
    margin-bottom: 0.75rem;
}

.muted {
    color: var(--muted);
}

@media (max-width: 700px) {
    .hero {
        padding-bottom: 1.75rem;
    }

    .topnav,
    .hero__content,
    .layout,
    .footer {
        width: min(100% - 1rem, 980px);
    }

    .layout {
        padding: 1.2rem;
        border-radius: 14px;
    }

    .topnav {
        gap: 0.5rem 0.75rem;
    }

    .topnav a {
        font-size: 0.9rem;
    }
}