:root {
    --bg: #ffffff;
    --bg-soft: #fafafa;
    --text: #1a1a1a;
    --text-muted: #5a5a5a;
    --rule: #e5e5e5;
    --accent: #8a6a2b;
    --max: 720px;
}

*, *::before, *::after { box-sizing: border-box; }

html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    padding: 2.5rem 1.5rem 4rem;
}

.wrap {
    max-width: var(--max);
    margin: 0 auto;
}

header.site {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 3rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--rule);
}

header.site a {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text);
    text-decoration: none;
}

header.site img {
    width: 28px;
    height: auto;
}

header.site span {
    font-weight: 600;
    letter-spacing: 0.02em;
}

header.site nav {
    margin-left: auto;
    font-size: 0.92rem;
}

header.site nav a {
    color: var(--text-muted);
    text-decoration: none;
    margin-left: 1rem;
}

header.site nav a:hover { color: var(--text); }

h1 {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1.2;
    margin: 0 0 0.5rem;
}

h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 2.25rem 0 0.5rem;
    letter-spacing: -0.005em;
}

h3 {
    font-size: 1rem;
    font-weight: 600;
    margin: 1.5rem 0 0.25rem;
}

p { margin: 0 0 1rem; }

.lead {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

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

ul { padding-left: 1.25rem; margin: 0 0 1rem; }
li { margin-bottom: 0.35rem; }

hr {
    border: 0;
    border-top: 1px solid var(--rule);
    margin: 2.5rem 0;
}

code {
    font: 0.9em/1 ui-monospace, "SF Mono", Menlo, monospace;
    background: var(--bg-soft);
    padding: 0.1em 0.35em;
    border-radius: 3px;
}

.hero {
    text-align: center;
    padding: 1rem 0 1.5rem;
}

.hero img {
    width: 160px;
    height: auto;
    border-radius: 28px;
    box-shadow: 0 6px 18px rgba(0,0,0,0.08);
    margin-bottom: 1.25rem;
}

.hero h1 { margin-bottom: 0.25rem; }

.hero .tagline {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 1.5rem;
}

.zentric-mark {
    width: 96px;
    height: auto;
    display: block;
    margin: 0 auto 1rem;
}

.center { text-align: center; }

.muted { color: var(--text-muted); }
.small { font-size: 0.9rem; }

footer {
    margin-top: 4rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--rule);
    color: var(--text-muted);
    font-size: 0.85rem;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}

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

footer a:hover { color: var(--text); }

@media (max-width: 480px) {
    body { padding: 1.5rem 1rem 3rem; }
    h1 { font-size: 1.6rem; }
    .hero img { width: 128px; }
}