/* EconomicalHost Knowledge Base */
:root {
  --kb-green: #15803d;
  --kb-green-deep: #0f6b2f;
  --kb-ink: #14241a;
  --kb-muted: #5c6f63;
  --kb-bg: #f7faf8;
  --kb-border: #dfe8e2;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--kb-bg);
  color: var(--kb-ink);
  line-height: 1.65;
}

a { color: var(--kb-green); }
a:hover { color: var(--kb-green-deep); }

.kb-header {
  background: #fff;
  border-bottom: 1px solid var(--kb-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.kb-header-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.kb-brand {
  font-weight: 800;
  font-size: 17px;
  text-decoration: none;
  color: var(--kb-ink);
  letter-spacing: -0.01em;
}

.kb-brand b { color: var(--kb-green); }

.kb-nav { display: flex; gap: 6px; }

.kb-nav a {
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  padding: 7px 13px;
  border-radius: 8px;
  color: #3c5246;
}

.kb-nav a:hover { background: #edf6f0; color: var(--kb-green); }

.kb-wrap {
  max-width: 820px;
  margin: 0 auto;
  padding: 36px 20px 64px;
}

.kb-wrap-wide { max-width: 1080px; }

.kb-crumb {
  font-size: 13px;
  color: var(--kb-muted);
  margin-bottom: 18px;
}

.kb-crumb a { color: var(--kb-muted); text-decoration: none; }
.kb-crumb a:hover { color: var(--kb-green); }

.kb-cat-badge {
  display: inline-block;
  background: #e7f3eb;
  color: var(--kb-green);
  font-size: 12px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 99px;
  letter-spacing: 0.03em;
  margin-bottom: 12px;
}

h1 {
  font-size: 30px;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}

.kb-lead { font-size: 17px; color: #33473a; margin: 0 0 26px; }

article h2 { font-size: 21px; margin: 34px 0 12px; letter-spacing: -0.01em; }

ol.kb-steps {
  margin: 0;
  padding-left: 0;
  list-style: none;
  counter-reset: step;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

ol.kb-steps > li {
  counter-increment: step;
  background: #fff;
  border: 1px solid var(--kb-border);
  border-radius: 12px;
  padding: 14px 18px 14px 56px;
  position: relative;
}

ol.kb-steps > li::before {
  content: counter(step);
  position: absolute;
  left: 16px;
  top: 14px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--kb-green);
  color: #fff;
  font-weight: 700;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.kb-tip {
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: 12px;
  padding: 16px 20px;
  margin-top: 26px;
}

.kb-tip h2, .kb-tip h3 { margin: 0 0 8px; font-size: 16px; }

.kb-tip ul { margin: 0; padding-left: 20px; }

table.kb-settings {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border: 1px solid var(--kb-border);
  border-radius: 12px;
  overflow: hidden;
  font-size: 14.5px;
  margin: 10px 0;
}

table.kb-settings th, table.kb-settings td {
  padding: 9px 14px;
  border-bottom: 1px solid var(--kb-border);
  text-align: left;
}

table.kb-settings th { background: #eef6f0; font-size: 13px; }

table.kb-settings tr:last-child td { border-bottom: none; }

.kb-related {
  margin-top: 40px;
  border-top: 1px solid var(--kb-border);
  padding-top: 22px;
}

.kb-related ul { margin: 0; padding-left: 20px; display: flex; flex-direction: column; gap: 7px; }

.kb-footer {
  border-top: 1px solid var(--kb-border);
  background: #fff;
  text-align: center;
  font-size: 13px;
  color: var(--kb-muted);
  padding: 22px 20px;
}

/* index */
.kb-search {
  width: 100%;
  font-size: 16px;
  padding: 13px 18px;
  border: 1.5px solid var(--kb-border);
  border-radius: 12px;
  margin: 6px 0 10px;
}

.kb-search:focus { outline: none; border-color: var(--kb-green); }

.kb-cat-section h2 {
  font-size: 19px;
  margin: 34px 0 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid #dcebe1;
}

.kb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 14px;
}

.kb-card {
  background: #fff;
  border: 1px solid var(--kb-border);
  border-radius: 12px;
  padding: 16px 18px;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.kb-card:hover { border-color: var(--kb-green); box-shadow: 0 4px 16px -8px rgba(21, 128, 61, 0.25); color: inherit; }

.kb-card h3 { margin: 0 0 6px; font-size: 15.5px; color: var(--kb-green); }

.kb-card p { margin: 0; font-size: 13.5px; color: var(--kb-muted); }

/* FAQ */
details.kb-faq {
  background: #fff;
  border: 1px solid var(--kb-border);
  border-radius: 12px;
  padding: 0;
  margin-bottom: 10px;
}

details.kb-faq summary {
  cursor: pointer;
  font-weight: 600;
  padding: 15px 18px;
  list-style: none;
  position: relative;
  padding-right: 40px;
}

details.kb-faq summary::after {
  content: "▾";
  position: absolute;
  right: 18px;
  color: var(--kb-green);
  transition: transform 0.15s;
}

details.kb-faq[open] summary::after { transform: rotate(180deg); }

details.kb-faq .kb-faq-body { padding: 0 18px 16px; color: #33473a; }

@media (max-width: 640px) {
  h1 { font-size: 24px; }
  .kb-nav a { padding: 6px 9px; font-size: 13px; }
}