*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
:root {
    --white: #fff;
    --white-60: rgba(255,255,255,0.6);
    --white-45: rgba(255,255,255,0.45);
    --white-12: rgba(255,255,255,0.12);
    --white-08: rgba(255,255,255,0.08);
    --white-05: rgba(255,255,255,0.05);
}
body {
    font-family: 'Instrument Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background: #000;
    color: var(--white);
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}
nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 10;
    height: 56px;
    padding: 0 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(0,0,0,0.62);
    border-bottom: 1px solid var(--white-08);
    backdrop-filter: blur(34px);
    -webkit-backdrop-filter: blur(34px);
}
.nav-left { display: flex; align-items: center; gap: 10px; color: var(--white); text-decoration: none; }
.nav-left img { width: 22px; height: 22px; border-radius: 5px; }
.nav-left span { font-size: 14px; font-weight: 600; }
.nav-right { display: flex; gap: 28px; list-style: none; }
.nav-right a {
    color: var(--white-45);
    text-decoration: none;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.nav-right a:hover { color: var(--white); }
.guide-hero {
    min-height: 74vh;
    display: grid;
    place-items: center;
    padding: 130px 24px 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.guide-hero::before {
    content: "";
    position: absolute;
    width: min(700px, 92vw);
    height: min(700px, 92vw);
    border-radius: 999px;
    background: radial-gradient(circle, rgba(255,255,255,0.09), rgba(255,255,255,0.02) 45%, transparent 72%);
    top: 18%;
    left: 50%;
    transform: translateX(-50%);
    pointer-events: none;
}
.hero-inner { position: relative; max-width: 820px; }
.eyebrow {
    font-family: 'Space Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--white-45);
    margin-bottom: 24px;
}
h1 {
    font-size: clamp(2.45rem, 7vw, 5rem);
    line-height: 0.96;
    letter-spacing: -0.055em;
    margin-bottom: 24px;
}
.hero-sub {
    max-width: 610px;
    margin: 0 auto 36px;
    color: var(--white-60);
    font-size: clamp(1rem, 2vw, 1.22rem);
}
.cta-row { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    padding: 0 28px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.2s ease, background 0.2s ease;
}
.button-primary { background: #fff; color: #000; }
.button-secondary { color: #fff; border: 1px solid var(--white-12); background: rgba(255,255,255,0.04); }
.button:hover { transform: translateY(-1px); }
main { max-width: 1040px; margin: 0 auto; padding: 0 48px 120px; }
.guide-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 64px;
    align-items: start;
}
article {
    border-top: 1px solid var(--white-08);
    padding-top: 56px;
}
article h2 {
    font-size: clamp(1.45rem, 3vw, 2rem);
    line-height: 1.1;
    letter-spacing: -0.035em;
    margin: 52px 0 18px;
}
article h2:first-child { margin-top: 0; }
article p, article li {
    color: var(--white-60);
    font-size: 16px;
    margin-bottom: 16px;
}
article strong { color: var(--white); font-weight: 700; }
article ul { padding-left: 22px; margin-bottom: 28px; }
.callout {
    margin: 36px 0;
    padding: 28px;
    border-radius: 22px;
    background: linear-gradient(135deg, rgba(255,255,255,0.09), rgba(255,255,255,0.035));
    border: 1px solid var(--white-12);
    box-shadow: 0 0 40px rgba(255,255,255,0.04);
}
.callout p { margin: 0; color: var(--white); font-weight: 650; font-size: 18px; letter-spacing: -0.02em; }
.steps { display: grid; gap: 14px; margin: 26px 0 38px; }
.step {
    display: grid;
    grid-template-columns: 34px 1fr;
    gap: 16px;
    padding: 20px;
    border-radius: 18px;
    background: var(--white-05);
    border: 1px solid var(--white-08);
}
.step-num {
    width: 34px; height: 34px;
    display: grid; place-items: center;
    border-radius: 50%;
    background: #fff;
    color: #000;
    font-weight: 800;
    font-size: 13px;
}
.step h3 { font-size: 16px; margin-bottom: 4px; letter-spacing: -0.01em; }
.step p { margin: 0; font-size: 14px; color: var(--white-45); }
.side-card {
    position: sticky;
    top: 88px;
    padding: 22px;
    border-radius: 24px;
    background: rgba(255,255,255,0.055);
    border: 1px solid var(--white-12);
}
.side-card img {
    display: block;
    width: 100%;
    max-width: 210px;
    margin: 0 auto 18px;
    border-radius: 22px;
}
.side-card h2 {
    font-size: 20px;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 10px;
}
.side-card p { color: var(--white-45); font-size: 14px; margin-bottom: 18px; }
.side-card .button { width: 100%; }
.faq { margin-top: 56px; border-top: 1px solid var(--white-08); padding-top: 44px; }
.faq-item { padding: 24px 0; border-bottom: 1px solid var(--white-08); }
.faq-item h3 { font-size: 17px; margin-bottom: 8px; letter-spacing: -0.015em; }
.faq-item p { margin: 0; font-size: 15px; }
.related-guides {
    margin-top: 56px;
    padding-top: 44px;
    border-top: 1px solid var(--white-08);
}
.related-guides h2 { margin-top: 0; }
.related-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}
.related-card {
    display: block;
    padding: 18px;
    border-radius: 18px;
    background: var(--white-05);
    border: 1px solid var(--white-08);
    color: var(--white);
    text-decoration: none;
}
.related-card strong {
    display: block;
    margin-bottom: 6px;
    font-size: 15px;
    letter-spacing: -0.01em;
}
.related-card span {
    display: block;
    color: var(--white-45);
    font-size: 13px;
    line-height: 1.45;
}
.related-card:hover { border-color: var(--white-12); background: rgba(255,255,255,0.075); }
footer {
    border-top: 1px solid var(--white-08);
    max-width: 1040px;
    margin: 0 auto;
    padding: 38px 48px 56px;
    display: flex;
    justify-content: space-between;
    gap: 24px;
    color: var(--white-45);
    font-family: 'Space Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.05em;
}
footer a { color: var(--white-45); text-decoration: none; }
footer a:hover { color: #fff; }
@media (max-width: 860px) {
    nav { padding: 0 22px; }
    .nav-right { display: none; }
    main { padding: 0 24px 92px; }
    .guide-layout { grid-template-columns: 1fr; gap: 42px; }
    .related-grid { grid-template-columns: 1fr; }
    .side-card { position: static; }
    footer { padding: 32px 24px 48px; flex-direction: column; }
}