:root {
  --navy: #1b3a5b;
  --teal: #157a8c;
  --teal-light: #e8f4f6;
  --ink: #24313d;
  --muted: #5b6b7a;
  --line: #d8e0e6;
  --warn-bg: #fdf3e4;
  --warn-border: #e0a94e;
  --danger-bg: #fbeaea;
  --danger-border: #c0504d;
  --bg: #f7f9fa;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
}
header.site {
  background: var(--navy);
  color: #fff;
  padding: 1rem 1.25rem 0.6rem;
}
header.site h1 { margin: 0 0 0.1rem; font-size: 1.35rem; }
header.site .sub { color: #b9cddd; font-size: 0.85rem; }
nav.main {
  background: var(--navy);
  padding: 0.4rem 1rem 0.7rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  position: sticky;
  top: 0;
  z-index: 5;
  box-shadow: 0 1px 4px rgba(0,0,0,0.25);
}
nav.main a {
  color: #dce8f2;
  text-decoration: none;
  padding: 0.3rem 0.65rem;
  border-radius: 5px;
  font-size: 0.9rem;
}
nav.main a:hover { background: rgba(255,255,255,0.12); }
nav.main a.active { background: var(--teal); color: #fff; }
nav.sub {
  background: var(--teal-light);
  border-bottom: 1px solid var(--line);
  padding: 0.35rem 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem;
}
nav.sub a {
  color: var(--navy);
  text-decoration: none;
  padding: 0.2rem 0.6rem;
  border-radius: 5px;
  font-size: 0.85rem;
}
nav.sub a:hover { background: rgba(21,122,140,0.12); }
nav.sub a.active { background: var(--navy); color: #fff; }
@media (max-width: 640px) {
  nav.sub { overflow-x: auto; flex-wrap: nowrap; }
  nav.sub a { white-space: nowrap; }
}
main {
  max-width: 880px;
  margin: 1.25rem auto 3rem;
  padding: 0 1.1rem;
}
h2 { color: var(--navy); border-bottom: 2px solid var(--teal); padding-bottom: 0.25rem; margin-top: 2rem; }
h3 { color: var(--teal); margin-top: 1.4rem; }
h2:first-child { margin-top: 0.5rem; }
a { color: var(--teal); }
table {
  border-collapse: collapse;
  width: 100%;
  margin: 0.8rem 0;
  font-size: 0.92rem;
  background: #fff;
}
th, td { border: 1px solid var(--line); padding: 0.45rem 0.6rem; text-align: left; vertical-align: top; }
th { background: var(--teal-light); color: var(--navy); }
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.9rem 1.1rem;
  margin: 0.9rem 0;
}
.callout {
  border-left: 4px solid var(--teal);
  background: var(--teal-light);
  padding: 0.7rem 1rem;
  border-radius: 0 6px 6px 0;
  margin: 0.9rem 0;
}
.warn {
  border-left: 4px solid var(--warn-border);
  background: var(--warn-bg);
  padding: 0.7rem 1rem;
  border-radius: 0 6px 6px 0;
  margin: 0.9rem 0;
}
.danger {
  border-left: 4px solid var(--danger-border);
  background: var(--danger-bg);
  padding: 0.7rem 1rem;
  border-radius: 0 6px 6px 0;
  margin: 0.9rem 0;
}
.danger strong:first-child, .warn strong:first-child { display: block; margin-bottom: 0.2rem; }
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.9rem;
  margin: 1rem 0;
}
.grid .card { margin: 0; }
.grid .card h3 { margin-top: 0.1rem; }
.grid .card p { font-size: 0.92rem; color: var(--muted); }
code, .dot {
  background: #eef2f5;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.05rem 0.35rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.86em;
}
pre {
  background: #f0f4f7;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.8rem 1rem;
  overflow-x: auto;
  font-size: 0.85rem;
}
footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
  padding: 1.5rem 1rem 2.5rem;
  border-top: 1px solid var(--line);
  margin-top: 2rem;
}
.pill {
  display: inline-block;
  background: var(--teal);
  color: #fff;
  font-size: 0.75rem;
  border-radius: 999px;
  padding: 0.1rem 0.6rem;
  margin-left: 0.4rem;
  vertical-align: middle;
}
ul { padding-left: 1.3rem; }
li { margin: 0.2rem 0; }
.src { color: var(--muted); font-size: 0.8rem; font-style: italic; }
@media (max-width: 640px) {
  nav.main { overflow-x: auto; flex-wrap: nowrap; }
  nav.main a { white-space: nowrap; }
}

/* ---- app chrome: user bar, login, editor ---- */
.site-row { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; }
.userbar { display: flex; gap: 0.4rem; align-items: center; white-space: nowrap; padding-top: 0.2rem; }
.ub {
  color: #dce8f2; text-decoration: none; font-size: 0.85rem;
  padding: 0.25rem 0.7rem; border: 1px solid rgba(255,255,255,0.25); border-radius: 5px;
  cursor: pointer; background: transparent;
}
.ub:hover { background: rgba(255,255,255,0.12); }
.ub-primary { background: var(--teal); border-color: var(--teal); color: #fff; }
.ub-primary:hover { background: #116878; }
.ub-upload { display: inline; margin: 0; }

.btn {
  display: inline-block; padding: 0.4rem 1.1rem; border-radius: 6px; font-size: 0.95rem;
  border: 1px solid var(--line); background: #fff; color: var(--ink);
  text-decoration: none; cursor: pointer;
}
.btn-primary { background: var(--teal); border-color: var(--teal); color: #fff; }
.btn-primary:hover { background: #116878; }

.editbar {
  display: flex; justify-content: space-between; align-items: center;
  background: var(--teal-light); border: 1px solid var(--line); border-radius: 8px;
  padding: 0.6rem 1rem; margin: 0.5rem 0 1rem;
}
.sun-editor { border-radius: 8px; border-color: var(--line) !important; }
.sun-editor .se-wrapper .se-wrapper-inner { min-height: 400px; }

.login-body {
  display: flex; align-items: center; justify-content: center; min-height: 100vh;
  background: linear-gradient(160deg, var(--navy) 0%, #10263d 100%);
  margin: 0;
}
.login-card {
  background: #fff; border-radius: 12px; padding: 2.2rem 2.5rem; width: 320px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.35); text-align: center;
}
.login-card h1 { color: var(--navy); margin: 0 0 0.1rem; font-size: 1.4rem; }
.login-card .sub { color: var(--muted); margin-bottom: 1.4rem; }
.login-card input {
  width: 100%; box-sizing: border-box; padding: 0.6rem 0.8rem; font-size: 1rem;
  border: 1px solid var(--line); border-radius: 6px; margin-bottom: 0.8rem;
}
.login-card .btn { width: 100%; }
.login-error { color: #c0504d; font-size: 0.9rem; margin-bottom: 0.8rem; }

/* ---- search, new page, history ---- */
.searchform { display: inline; margin: 0; }
.searchform input {
  padding: 0.28rem 0.7rem; border-radius: 5px; border: 1px solid rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.12); color: #fff; font-size: 0.85rem; width: 150px;
}
.searchform input::placeholder { color: #b9cddd; }
mark { background: #ffe9a8; padding: 0 2px; border-radius: 2px; }
.searchhit h3 { margin-top: 0.2rem; }
.snippet { color: var(--muted); font-size: 0.92rem; margin: 0.3rem 0; }
.histbtns { white-space: nowrap; }
.histbtns .btn { padding: 0.15rem 0.6rem; font-size: 0.85rem; }
.newform { max-width: 420px; background: #fff; border: 1px solid var(--line);
  border-radius: 8px; padding: 1.2rem 1.4rem; }
.newform label { display: block; margin-bottom: 1rem; color: var(--navy); font-weight: 600; }
.newform input, .newform select {
  width: 100%; box-sizing: border-box; padding: 0.5rem 0.7rem; font-size: 1rem;
  border: 1px solid var(--line); border-radius: 6px; margin-top: 0.3rem; font-weight: normal;
}