:root {
    --bg-main: #060B14;
    --bg-panel: #0B1220;
    --bg-elevated: #101A2B;
    --border-subtle: #22324A;
    --text-main: #F4F7FB;
    --text-secondary: #AAB7C8;
    --text-muted: #718096;
    --blue-main: #1D9BFF;
    --blue-accent: #58B7FF;
    --blue-hover: #0F5EA8;
    --yellow-accent: #FFD43B;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg-main);
    color: var(--text-main);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
    line-height: 1.65;
}

.page {
    width: min(900px, calc(100% - 32px));
    margin: 0 auto;
    padding: 48px 0;
}

.hero,
.content-panel {
    background: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    box-shadow: 0 18px 42px rgba(0, 0, 0, 0.28);
}

.hero {
    padding: 34px;
}

.content-panel {
    margin-top: 22px;
    padding: 30px 34px;
}

.page-title {
    margin: 0;
    color: var(--text-main);
    font-size: clamp(2rem, 5vw, 3.25rem);
    line-height: 1.05;
    letter-spacing: 0;
}

.page-title::after {
    content: "";
    display: block;
    height: 2px;
    margin-top: 14px;
    width: 100%;
    background: linear-gradient(
        90deg,
        transparent 0%,
        #1D9BFF 22%,
        #58B7FF 48%,
        #FFD43B 72%,
        transparent 100%
    );
    opacity: 0.95;
}

.tagline,
.updated {
    color: var(--text-muted);
}

.tagline {
    margin: 18px 0 0;
    max-width: 680px;
}

.updated {
    margin-top: 0;
    font-size: 0.95rem;
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 22px;
}

.site-nav a,
.link-list a {
    color: var(--blue-main);
    text-decoration: none;
    transition: color 140ms ease, border-color 140ms ease, background-color 140ms ease;
}

.site-nav a {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
    padding: 8px 13px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    font-weight: 700;
}

.site-nav a:hover,
.site-nav a:focus-visible {
    color: var(--text-main);
    background: var(--blue-hover);
    border-color: var(--blue-accent);
}

a {
    color: var(--blue-main);
}

a:hover,
a:focus-visible {
    color: var(--blue-accent);
}

h2 {
    margin: 30px 0 10px;
    color: var(--text-main);
    font-size: 1.25rem;
    line-height: 1.25;
}

p {
    color: var(--text-secondary);
}

.content-panel p:last-child {
    margin-bottom: 0;
}

.link-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 14px;
    margin: 24px 0 0;
    padding: 0;
    list-style: none;
}

.link-list a {
    display: block;
    min-height: 76px;
    padding: 18px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    font-weight: 700;
}

.link-list a:hover,
.link-list a:focus-visible {
    color: var(--text-main);
    border-color: var(--blue-accent);
    background: #0C2038;
}

.accent {
    color: var(--yellow-accent);
}

@media (max-width: 640px) {
    .page {
        width: min(100% - 22px, 900px);
        padding: 24px 0;
    }

    .hero,
    .content-panel {
        padding: 22px;
        border-radius: 10px;
    }

    .site-nav a {
        width: 100%;
        justify-content: center;
    }
}