:root {
  --ink: #1a1713;
  --paper: #f3efe6;
  --card: #fffaf1;
  --line: #d8d0c2;
  --muted: #6a6256;
  --accent: #b3472d;
  --accent-dark: #8d3421;
  --ok: #2f6b4f;
  --warn: #9a6b12;
  --shadow: 0 18px 40px rgba(48, 36, 18, 0.08);
  --serif: Georgia, "Times New Roman", serif;
  --sans: system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--serif); }
a { color: var(--accent-dark); }
img { max-width: 100%; }
button, input, select, textarea { font: inherit; }

.skip { position: absolute; left: -999px; }
.skip:focus { left: 1rem; top: 1rem; background: #fff; padding: .5rem; }

.topbar, .guest-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.4rem;
  border-bottom: 1px solid var(--line);
  background: var(--card);
}
.brand { text-decoration: none; color: inherit; font-weight: 700; letter-spacing: .04em; }
.brand small { display: block; font-family: var(--sans); font-weight: 500; color: var(--muted); letter-spacing: .12em; font-size: .68rem; text-transform: uppercase; }
.nav-links, .user-meta { display: flex; gap: .9rem; align-items: center; flex-wrap: wrap; font-family: var(--sans); font-size: .92rem; }
.nav-links a { color: inherit; text-decoration: none; }
.nav-links a[aria-current="page"] { border-bottom: 2px solid var(--accent); }

.wrap { width: min(1100px, calc(100% - 2rem)); margin: 0 auto; padding: 2rem 0 4rem; }
.wrap-wide { width: min(1280px, calc(100% - 1.5rem)); margin: 0 auto; padding: 1.2rem 0 3rem; }

.hero-home { display: grid; gap: 2rem; padding: 3rem 1.4rem 4rem; }
@media (min-width: 900px) {
  .hero-home { grid-template-columns: 1.1fr .9fr; align-items: center; width: min(1100px, 100%); margin: 0 auto; }
}
.eyebrow { font-family: var(--sans); text-transform: uppercase; letter-spacing: .16em; font-size: .72rem; color: var(--accent); }
h1, h2, h3 { line-height: 1.15; }
h1 { font-size: clamp(2.2rem, 5vw, 4.2rem); margin: .3rem 0 1rem; }
.lede { font-size: 1.2rem; color: var(--muted); max-width: 38rem; }
.panel {
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 1.2rem 1.3rem;
}
.panel.rules li { margin-bottom: .4rem; }

.grid-2 { display: grid; gap: 1rem; }
@media (min-width: 800px) { .grid-2 { grid-template-columns: 1fr 1fr; } }
.grid-3 { display: grid; gap: 1rem; }
@media (min-width: 900px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 1.1rem 1.15rem;
  box-shadow: var(--shadow);
}
.muted { color: var(--muted); }
.stat { font-size: 2rem; font-weight: 700; }

.btn, button.btn, input.btn {
  display: inline-block;
  border: 0;
  background: var(--ink);
  color: #fff;
  text-decoration: none;
  padding: .7rem 1rem;
  cursor: pointer;
  font-family: var(--sans);
}
.btn.secondary { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn.danger { background: var(--accent-dark); }
.btn[disabled] { opacity: .55; cursor: wait; }
.linkish { background: none; border: 0; color: var(--accent-dark); padding: 0; cursor: pointer; font-family: var(--sans); }

.auth-card { width: min(460px, calc(100% - 2rem)); margin: 3rem auto; background: var(--card); border: 1px solid var(--line); padding: 1.6rem; box-shadow: var(--shadow); }
label { display: block; font-family: var(--sans); font-size: .86rem; margin: .8rem 0 .3rem; }
input[type="text"], input[type="email"], input[type="password"], input[type="number"], select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  padding: .7rem .75rem;
}
textarea { min-height: 8rem; resize: vertical; }
.errors, .flash { font-family: var(--sans); padding: .7rem .8rem; margin: .8rem 0; }
.errors { background: #f8e4de; color: #6d2616; }
.flash { background: #e5f0e8; color: #244d38; }
.checks { display: grid; gap: .4rem; margin: .6rem 0 1rem; font-family: var(--sans); }

.editor-shell { display: grid; gap: 1rem; }
@media (min-width: 1100px) {
  .editor-shell { grid-template-columns: 340px 1fr; align-items: start; }
}
.preview-frame {
  width: 100%;
  min-height: 70vh;
  border: 1px solid var(--line);
  background: #fff;
}
.tabs { display: flex; gap: .4rem; margin: .6rem 0; font-family: var(--sans); }
.tabs button { border: 1px solid var(--line); background: #fff; padding: .4rem .7rem; cursor: pointer; }
.tabs button.active { background: var(--ink); color: #fff; }
.code { min-height: 16rem; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .85rem; }
.hidden { display: none; }
.table { width: 100%; border-collapse: collapse; font-family: var(--sans); font-size: .92rem; }
.table th, .table td { border-bottom: 1px solid var(--line); text-align: left; padding: .55rem .3rem; vertical-align: top; }
.badge { display: inline-block; padding: .15rem .45rem; border: 1px solid var(--line); font-family: var(--sans); font-size: .75rem; }
.badge.ok { color: var(--ok); }
.badge.warn { color: var(--warn); }
.badge.bad { color: var(--accent-dark); }
.inline-form { display: inline; }
.stack-actions { display: flex; gap: .6rem; flex-wrap: wrap; align-items: center; }
.page-head { display: flex; justify-content: space-between; gap: 1rem; align-items: end; flex-wrap: wrap; margin-bottom: 1.2rem; }
.note { font-family: var(--sans); font-size: .88rem; color: var(--muted); }
footer.site { border-top: 1px solid var(--line); padding: 1.2rem 1.4rem 2rem; color: var(--muted); font-family: var(--sans); font-size: .85rem; }