:root {
  --cream: #f7f2ea;
  --cream-deep: #efe7da;
  --card: #ffffff;
  --ink: #2a241f;
  --muted: #6f655b;
  --rust: #a8472a;
  --rust-dark: #853620;
  --line: #e6ddcd;
  --chip: #f1e6dc;
  --shadow: 0 1px 2px rgba(42, 36, 31, .06), 0 8px 24px rgba(42, 36, 31, .06);
  --serif: Georgia, "Iowan Old Style", "Times New Roman", serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--rust-dark); }

.container { width: 100%; max-width: 860px; margin: 0 auto; padding: 0 22px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(247, 242, 234, .85);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.brand {
  font-family: var(--serif); font-size: 1.25rem; font-weight: 700;
  color: var(--ink); text-decoration: none; letter-spacing: .2px;
}
.brand span { color: var(--rust); }
.nav { display: flex; align-items: center; gap: 18px; }
.nav a { color: var(--muted); text-decoration: none; font-size: .94rem; }
.nav a:hover { color: var(--ink); }
.nav .who { color: var(--muted); font-size: .9rem; }
.nav .btn, .nav .btn:hover { color: #fff; }

/* Buttons */
.btn {
  display: inline-block; border: 0; cursor: pointer;
  background: var(--rust); color: #fff;
  font: inherit; font-size: .92rem; font-weight: 600;
  padding: 8px 16px; border-radius: 8px; text-decoration: none;
}
.btn:hover { background: var(--rust-dark); color: #fff; }
.btn-ghost {
  background: transparent; color: var(--ink);
  border: 1px solid var(--line); padding: 7px 15px;
}
.btn-ghost:hover { background: var(--cream-deep); color: var(--ink); }

/* Hero */
.hero { padding: 46px 0 26px; }
.hero h1 { font-family: var(--serif); font-size: 2.3rem; line-height: 1.15; margin: 0 0 10px; }
.hero p { color: var(--muted); font-size: 1.06rem; max-width: 60ch; margin: 0; }

/* Notice strip */
.notice {
  background: #fff; border: 1px solid var(--line); border-left: 3px solid var(--rust);
  border-radius: 8px; padding: 12px 16px; margin: 0 0 26px;
  color: var(--muted); font-size: .94rem;
}
.notice a { font-weight: 600; }

/* Card grid */
.card-grid { display: grid; gap: 16px; padding-bottom: 56px; }
.card {
  display: block; background: var(--card); border: 1px solid var(--line);
  border-radius: 12px; padding: 20px 22px; text-decoration: none; color: var(--ink);
  box-shadow: var(--shadow); transition: transform .12s ease, box-shadow .12s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: 0 2px 4px rgba(42,36,31,.08), 0 14px 34px rgba(42,36,31,.10); }
.card h3 { font-family: var(--serif); font-size: 1.28rem; margin: 8px 0 8px; }
.card p { color: var(--muted); margin: 0; font-size: .97rem; }

/* Geo chip */
.chip {
  display: inline-block; background: var(--chip); color: var(--rust-dark);
  font-size: .76rem; font-weight: 600; letter-spacing: .3px; text-transform: uppercase;
  padding: 4px 10px; border-radius: 999px;
}

/* Article (detail) */
.article { padding: 30px 0 10px; }
.backlink { color: var(--muted); text-decoration: none; font-size: .92rem; }
.article h1 { font-family: var(--serif); font-size: 2rem; line-height: 1.2; margin: 14px 0 10px; }
.article .body { font-size: 1.06rem; margin-top: 18px; }
.meta-row { display: flex; align-items: center; gap: 12px; }

/* Discussion */
.discussion { border-top: 1px solid var(--line); margin-top: 36px; padding: 26px 0 60px; }
.discussion h2 { font-family: var(--serif); font-size: 1.4rem; margin: 0 0 16px; }
.comment {
  background: #fff; border: 1px solid var(--line); border-radius: 10px;
  padding: 14px 16px; margin-bottom: 12px;
}
.comment .who { color: var(--muted); font-size: .84rem; margin-top: 6px; }
.muted { color: var(--muted); }

/* Footer */
.site-footer { border-top: 1px solid var(--line); color: var(--muted); font-size: .86rem; }
.site-footer .container { padding-top: 22px; padding-bottom: 30px; }

/* Flash messages */
.messages { margin: 18px 0 0; display: grid; gap: 8px; }
.msg { padding: 11px 15px; border-radius: 8px; font-size: .92rem; border: 1px solid var(--line); }
.msg-success { background: #eef6ec; border-color: #cfe6c8; color: #2f6b2a; }
.msg-error { background: #fbecea; border-color: #f0cfc9; color: #9a2a1c; }

/* Forms */
.field { margin-bottom: 16px; display: flex; flex-direction: column; }
.field label { font-size: .85rem; font-weight: 600; color: var(--ink); margin-bottom: 6px; }
.field input, .field select, textarea {
  font: inherit; padding: 10px 12px; color: var(--ink);
  border: 1px solid var(--line); border-radius: 8px; background: #fdfbf7; width: 100%;
}
.field input:focus, textarea:focus {
  outline: none; border-color: var(--rust); box-shadow: 0 0 0 3px rgba(168, 71, 42, .12);
}
.field input[type="checkbox"] { width: auto; align-self: flex-start; }
.help, small.help { color: var(--muted); font-size: .8rem; margin-top: 5px; }
.help ul { margin: 6px 0 0; padding-left: 18px; }
.field-error, .form-errors { color: #9a2a1c; font-size: .85rem; margin-top: 6px; }
.form-errors { margin-bottom: 14px; }

/* Auth card */
.auth-card {
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  box-shadow: var(--shadow); max-width: 440px; margin: 48px auto; padding: 30px 30px 34px;
}
.auth-card h1 { font-family: var(--serif); font-size: 1.7rem; margin: 0 0 6px; }
.auth-card form { margin-top: 20px; }
.auth-card .btn { width: 100%; text-align: center; padding: 11px; margin-top: 6px; }
.auth-card .forgot { display: inline-block; margin-top: 14px; font-size: .85rem; }
.btn-social {
  width: 100%; text-align: center; background: #fff; color: var(--ink);
  border: 1px solid var(--line); padding: 11px; font-weight: 600; margin-top: 16px;
}
.btn-social:hover { background: var(--cream-deep); color: var(--ink); }
.or-divider {
  display: flex; align-items: center; text-align: center;
  color: var(--muted); font-size: .8rem; margin: 16px 0;
}
.or-divider::before, .or-divider::after { content: ""; flex: 1; border-top: 1px solid var(--line); }
.or-divider span { padding: 0 12px; }
.fineprint { font-size: .82rem; margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--line); }

/* Comment form */
.comment-form { margin: 0 0 22px; }
.comment-form textarea { margin-bottom: 10px; }
.comment.pending { border-style: dashed; opacity: .9; }
.comment.pending .who { color: var(--rust-dark); }

/* AI summary stub box */
.summary-box {
  background: #fbf7f0; border: 1px solid var(--line); border-left: 3px solid #7aa35a;
  border-radius: 10px; padding: 14px 18px; margin: 22px 0 4px; font-size: .96rem;
}
.summary-label {
  font-size: .7rem; font-weight: 700; letter-spacing: .5px; text-transform: uppercase;
  color: var(--muted); margin-bottom: 6px;
}
.decide-note {
  background: #fff; border: 1px solid var(--line); border-radius: 10px;
  padding: 12px 16px; margin-top: 20px; color: var(--muted); font-size: .92rem;
}

/* Detail layout with docs sidebar */
.detail-layout { display: flex; gap: 30px; align-items: flex-start; }
.detail-main { flex: 1; min-width: 0; }
.detail-aside { width: 244px; flex-shrink: 0; position: sticky; top: 84px; }
.aside-title { font-family: var(--serif); font-size: 1.1rem; margin: 30px 0 12px; }
.doc-form { display: grid; gap: 8px; margin-bottom: 18px; }
.doc-form .btn { justify-self: start; padding: 7px 14px; font-size: .85rem; }
.doc-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.doc-list li { font-size: .92rem; }
.doc-list a { word-break: break-word; }
.votes.horizontal { flex-direction: row; align-items: center; gap: 6px; min-width: 0; }
.meta-row .votes { margin-left: auto; }
@media (max-width: 760px) {
  .detail-layout { flex-direction: column; }
  .detail-aside { width: 100%; position: static; }
}

/* Threaded comments */
.comment-row { display: flex; gap: 12px; align-items: flex-start; }
.comment-main { flex: 1; min-width: 0; }
.votes { display: flex; flex-direction: column; align-items: center; min-width: 30px; user-select: none; }
.vote-btn {
  background: none; border: 0; cursor: pointer; font-size: .8rem; line-height: 1;
  padding: 2px 4px; color: var(--muted);
}
.vote-btn.up:hover, .vote-btn.up.active { color: #3f7d3a; }
.vote-btn.down:hover, .vote-btn.down.active { color: var(--rust); }
.vote-btn.disabled { cursor: default; opacity: .45; }
.votes .score { font-size: .82rem; font-weight: 700; color: var(--ink); margin: 1px 0; }
.handle { color: var(--muted); font-size: .8rem; font-weight: 400; }
.comment-meta { display: flex; align-items: center; gap: 14px; margin-top: 6px; }
.comment-children {
  margin-top: 12px; margin-left: 16px; padding-left: 14px;
  border-left: 2px solid var(--line); display: grid; gap: 12px;
}
.comment .reply, .comment .edit { font-size: .82rem; }
.comment .reply > summary, .comment .edit > summary {
  cursor: pointer; color: var(--rust-dark); font-weight: 600; list-style: none; user-select: none;
}
.comment .reply > summary::-webkit-details-marker,
.comment .edit > summary::-webkit-details-marker { display: none; }
.edited { color: var(--muted); font-size: .78rem; font-weight: 400; }
.reply-form { margin-top: 10px; }
.reply-form textarea { margin-bottom: 8px; }
.reply-form .btn { padding: 6px 14px; font-size: .85rem; }

/* Seed -> Tree growth bar */
.growth { margin-top: 14px; }
.growth-track {
  position: relative; height: 8px; background: var(--cream-deep);
  border-radius: 999px; overflow: hidden;
}
.growth-fill {
  position: absolute; left: 0; top: 0; bottom: 0;
  background: linear-gradient(90deg, #c9b393 0%, #9bb56a 55%, #3f7d3a 100%);
  border-radius: 999px;
}
.growth-labels {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-top: 6px; font-size: .72rem; letter-spacing: .4px;
  text-transform: uppercase; color: var(--muted);
}
.growth-stage { color: var(--rust-dark); font-weight: 700; }
.growth.lg .growth-track { height: 11px; }
.growth.lg .growth-labels { font-size: .8rem; }