:root {
    --bg: #0d0d0d;
    --surface: #171717;
    --surface-2: #202020;
    --accent: #e50914;
    --accent-hover: #bd0710;
    --text: #ffffff;
    --muted: #b4b4b4;
    --line: #2d2d2d;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background:
        radial-gradient(circle at 85% 5%, rgba(229, 9, 20, 0.16), transparent 28rem),
        var(--bg);
    color: var(--text);
    font-family: "Outfit", sans-serif;
    line-height: 1.7;
}

a { color: inherit; }

.site-header {
    width: min(1080px, calc(100% - 40px));
    margin: 0 auto;
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    font-size: 23px;
    font-weight: 800;
    text-decoration: none;
}

.brand span { color: var(--accent); }

.site-header nav { display: flex; gap: 22px; }
.site-header nav a { color: var(--muted); text-decoration: none; font-weight: 600; }
.site-header nav a:hover { color: var(--text); }

main {
    width: min(920px, calc(100% - 40px));
    margin: 54px auto 100px;
}

.eyebrow {
    color: #ff5962;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

h1 {
    max-width: 850px;
    margin: 12px 0 20px;
    font-size: clamp(38px, 7vw, 66px);
    line-height: 1.03;
    letter-spacing: -0.04em;
}

.lead { max-width: 760px; color: var(--muted); font-size: 20px; }

.hero-card, .content-card, .guide-card {
    border: 1px solid var(--line);
    background: linear-gradient(160deg, rgba(255,255,255,0.055), rgba(255,255,255,0.02));
    border-radius: 18px;
}

.hero-card { padding: 32px; margin: 34px 0; }
.hero-card img { width: 100%; border-radius: 12px; display: block; }

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }

.button {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 13px 20px;
    border-radius: 9px;
    background: var(--accent);
    color: #fff;
    font-weight: 800;
    text-decoration: none;
}

.button:hover { background: var(--accent-hover); }
.button.secondary { background: var(--surface-2); border: 1px solid var(--line); }

.content-card { padding: 30px; margin: 22px 0; }
.content-card h2 { margin-top: 0; font-size: 28px; }
.content-card h3 { margin-bottom: 6px; }
.content-card p, .content-card li { color: #d0d0d0; }
.content-card li + li { margin-top: 8px; }

.guide-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 30px;
}

.guide-card { padding: 24px; text-decoration: none; transition: transform 0.2s, border-color 0.2s; }
.guide-card:hover { transform: translateY(-4px); border-color: rgba(229, 9, 20, 0.7); }
.guide-card strong { display: block; font-size: 20px; margin-bottom: 8px; }
.guide-card span { color: var(--muted); }

.notice {
    padding: 16px 18px;
    border-left: 3px solid var(--accent);
    background: rgba(229, 9, 20, 0.08);
    border-radius: 10px;
    color: #dedede;
}

footer {
    width: min(920px, calc(100% - 40px));
    margin: 0 auto;
    padding: 30px 0 50px;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: 14px;
}

@media (max-width: 720px) {
    .site-header nav a:first-child { display: none; }
    main { margin-top: 28px; }
    .lead { font-size: 17px; }
    .guide-grid { grid-template-columns: 1fr; }
    .hero-card, .content-card { padding: 22px; }
    .button { width: 100%; }
}