/* ── reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── base ── */
body {
  font-family: 'Courier New', monospace;
  background: #faf9f6;
  color: #1a1a1a;
  padding: 40px 32px;
  max-width: 900px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ── nav ── */
nav {
  display: flex;
  gap: 24px;
  margin-bottom: 36px;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  flex-wrap: wrap;
}
nav a {
  color: #888;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color 0.15s, border-color 0.15s;
}
nav a:hover, nav a.active {
  color: #1a1a1a;
  border-bottom-color: #1a1a1a;
}

/* ── header ── */
header {
  border-bottom: 3px solid #1a1a1a;
  padding-bottom: 14px;
  margin-bottom: 28px;
}
header h1 {
  font-size: 1.5rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
header p {
  font-size: 0.78rem;
  color: #555;
  margin-top: 4px;
}

/* ── section label ── */
.section-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: bold;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border: 1.5px solid #1a1a1a;
  padding: 2px 8px;
  margin: 28px 0 10px;
}

/* ── tables ── */
table { width: 100%; border-collapse: collapse; }
th {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: left;
  padding: 6px 10px;
  border-bottom: 2px solid #1a1a1a;
  color: #444;
}
td {
  padding: 7px 10px;
  font-size: 0.82rem;
  border-bottom: 1px solid #ddd;
  vertical-align: middle;
}
tr:hover td { background: #f0ede8; }

td.num   { color: #999; width: 32px; }
td.pid   { width: 110px; }
td.pid a { color: #1a1a1a; text-decoration: none; border-bottom: 1px dashed #999; }
td.pid a:hover { border-bottom-color: #1a1a1a; }
td.tag   { color: #666; font-size: 0.75rem; }
td.rating { font-weight: bold; }
td.done input[type=checkbox] { width: 15px; height: 15px; cursor: pointer; accent-color: #1a1a1a; }

/* rating colours */
.r800  { color: #2a7a2a; }
.r900  { color: #b06000; }
.r1000 { color: #c0001a; }

/* division badge */
.div-badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: bold;
  letter-spacing: 0.08em;
  padding: 1px 6px;
  border-radius: 2px;
  text-transform: uppercase;
}
.div4 { background: #e6f4ea; color: #2a7a2a; }
.div3 { background: #fff3e0; color: #b06000; }

/* solved row strikethrough */
tr.done-row td             { opacity: 0.42; text-decoration: line-through; text-decoration-color: #bbb; }
tr.done-row td.done        { text-decoration: none; opacity: 1; }

/* ── footer ── */
footer {
  margin-top: 40px;
  font-size: 0.7rem;
  color: #aaa;
  border-top: 1px solid #ddd;
  padding-top: 12px;
  letter-spacing: 0.05em;
}
footer #solved-count { font-weight: bold; color: #1a1a1a; }
footer .foot-btn {
  cursor: pointer;
  border-bottom: 1px dashed #bbb;
  transition: color 0.15s, border-color 0.15s;
}
footer .foot-btn.copy:hover  { color: #2a7a2a; border-bottom-color: #2a7a2a; }
footer .foot-btn.reset:hover { color: #c0001a; border-bottom-color: #c0001a; }

/* ── prose (conduct page) ── */
.prose h2 {
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 32px 0 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid #ddd;
}
.prose p  { font-size: 0.84rem; color: #333; margin-bottom: 10px; }
.prose ul { padding-left: 18px; margin-bottom: 10px; }
.prose li { font-size: 0.84rem; color: #333; margin-bottom: 5px; }
.prose .rule-num {
  display: inline-block;
  width: 22px;
  color: #aaa;
  font-size: 0.75rem;
}
.prose blockquote {
  border-left: 3px solid #ddd;
  padding-left: 14px;
  color: #666;
  font-size: 0.82rem;
  margin: 14px 0;
}

/* ── tracker ── */
.handle-bar {
  display: flex;
  gap: 10px;
  margin: 20px 0;
  align-items: center;
  flex-wrap: wrap;
}
.handle-bar input {
  font-family: 'Courier New', monospace;
  font-size: 0.85rem;
  border: 1.5px solid #ccc;
  padding: 6px 10px;
  background: #fff;
  outline: none;
  width: 220px;
  transition: border-color 0.15s;
}
.handle-bar input:focus { border-color: #1a1a1a; }
.handle-bar button {
  font-family: 'Courier New', monospace;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: #1a1a1a;
  color: #faf9f6;
  border: none;
  padding: 7px 16px;
  cursor: pointer;
  transition: background 0.15s;
}
.handle-bar button:hover { background: #333; }
#tracker-status {
  font-size: 0.78rem;
  color: #888;
  margin-bottom: 16px;
  min-height: 18px;
}
td.solved-ext { color: #2a7a2a; font-weight: bold; font-size: 0.75rem; }
td.unsolved-ext { color: #ccc; font-size: 0.75rem; }
.stat-bar {
  display: flex;
  gap: 24px;
  margin: 16px 0 24px;
  flex-wrap: wrap;
}
.stat-box {
  border: 1.5px solid #ddd;
  padding: 10px 18px;
  font-size: 0.78rem;
}
.stat-box strong { display: block; font-size: 1.3rem; color: #1a1a1a; }
.stat-box span   { color: #888; letter-spacing: 0.06em; text-transform: uppercase; }