:root {
    color-scheme: light;
    --ink: #1c1915;
    --muted: #5e574e;
    --paper: #f4f0e7;
    --card: #fffdf8;
    --line: #e3d9c8;
    --accent: #0f6e56;
    --accent-ink: #ffffff;
    --danger: #8d2d2d;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Segoe UI", sans-serif;
    color: var(--ink);
    background: var(--paper);
}

a { color: var(--accent); }

.top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 18px 24px;
    border-bottom: 1px solid var(--line);
}

.brand {
    color: var(--ink);
    font-weight: 700;
    text-decoration: none;
}

nav {
    display: flex;
    align-items: center;
    gap: 14px;
}

nav form { margin: 0; }

button, .button {
    display: inline-block;
    border: 0;
    border-radius: 8px;
    background: var(--accent);
    color: var(--accent-ink);
    text-decoration: none;
    padding: 10px 14px;
    font: inherit;
    cursor: pointer;
}

nav button, nav .button { padding: 8px 12px; }

main {
    width: min(880px, calc(100% - 32px));
    margin: 32px auto 64px;
}

.hero, .panel {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 28px;
}

.wide { overflow-x: auto; }

.eyebrow {
    margin: 0 0 8px;
    color: var(--accent);
    font-size: 0.85rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

h1 { margin: 0 0 12px; font-size: 2rem; }

.lede, .note { color: var(--muted); }

.stack { display: grid; gap: 14px; margin-top: 18px; }

label { display: grid; gap: 6px; font-weight: 600; }

input {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 10px 12px;
    font: inherit;
    background: #fff;
}

.subdomain-row { display: flex; align-items: center; gap: 8px; font-weight: 500; }

.hint { color: var(--muted); font-weight: 500; }
.hint.ok { color: var(--accent); }
.error { color: var(--danger); font-weight: 600; }

.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin: 20px 0; }
.facts div { border: 1px solid var(--line); border-radius: 10px; padding: 12px; }
dt { color: var(--muted); font-size: 0.85rem; }
dd { margin: 4px 0 0; font-weight: 700; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }

.steps { margin: 20px 0 0; padding: 0; list-style: none; }
.steps li { padding: 10px 0; color: var(--muted); border-bottom: 1px solid var(--line); }
.steps li.done { color: var(--accent); font-weight: 700; }

body.erp { display: grid; grid-template-columns: 230px 1fr; }
body.erp main { width: min(880px, calc(100% - 48px)); margin: 28px; }
.side { padding: 22px 16px; background: var(--card); border-right: 1px solid var(--line); }
.side .brand { display: block; margin-bottom: 8px; }
.side-company { margin: 0 0 18px; color: var(--muted); }
.side-nav { display: grid; gap: 4px; }
.side-nav a { display: block; padding: 8px 10px; border-radius: 8px; color: var(--ink); text-decoration: none; }
.side-nav a.active { background: #e7f3ef; color: var(--accent); font-weight: 700; }

@media (max-width: 700px) {
    .top { align-items: flex-start; flex-direction: column; }
    h1 { font-size: 1.6rem; }
    .subdomain-row { flex-direction: column; align-items: stretch; }
    body.erp { grid-template-columns: 1fr; }
    body.erp main { margin: 20px auto 48px; }
}