:root {
  --primary: #0F6E5C;
  --primary-light: #E0EDE9;
  --text: #1a1a1a;
  --text-secondary: #555;
  --border: #e0e0e0;
  --bg: #f8faf9;
  --card: #ffffff;
  --sidebar-width: 240px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

/* ── Header ── */
.site-header {
  background: var(--primary);
  color: #fff;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 4px rgba(0,0,0,0.15);
}
.site-header a { color: #fff; text-decoration: none; }
.site-header .logo { font-size: 17px; font-weight: 700; }
.site-header .back { font-size: 13px; opacity: 0.85; }
.site-header .back:hover { opacity: 1; }

/* ── Layout ── */
.page-wrap {
  display: flex;
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 16px;
  gap: 32px;
}

/* ── Sidebar ── */
.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
}
.sidebar-section { margin-bottom: 24px; }
.sidebar-section h3 {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  padding: 0 8px 6px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}
.sidebar a {
  display: block;
  padding: 6px 8px;
  border-radius: 5px;
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
}
.sidebar a:hover { background: var(--primary-light); color: var(--primary); }
.sidebar a.active { background: var(--primary-light); color: var(--primary); font-weight: 600; }

/* ── Content ── */
.content {
  flex: 1;
  min-width: 0;
  background: var(--card);
  border-radius: 8px;
  border: 1px solid var(--border);
  padding: 40px 48px;
}

.content h1 {
  font-size: 26px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}
.content .subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.content h2 {
  font-size: 17px;
  font-weight: 700;
  margin: 32px 0 12px;
  color: var(--text);
}
.content h3 {
  font-size: 15px;
  font-weight: 600;
  margin: 24px 0 8px;
}
.content p { margin-bottom: 14px; }
.content ul, .content ol {
  margin: 0 0 14px 24px;
}
.content li { margin-bottom: 6px; }

/* ── Table ── */
.content table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 24px;
  font-size: 14px;
}
.content th {
  text-align: left;
  padding: 8px 12px;
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
  border: 1px solid var(--border);
}
.content td {
  padding: 8px 12px;
  border: 1px solid var(--border);
  vertical-align: top;
}
.content tr:nth-child(even) td { background: #fafafa; }

/* ── Steps ── */
.steps { counter-reset: step; list-style: none; margin-left: 0; }
.steps li {
  counter-increment: step;
  display: flex;
  gap: 14px;
  margin-bottom: 14px;
  align-items: flex-start;
}
.steps li::before {
  content: counter(step);
  background: var(--primary);
  color: #fff;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ── Tip box ── */
.tip {
  background: var(--primary-light);
  border-left: 4px solid var(--primary);
  padding: 12px 16px;
  border-radius: 0 6px 6px 0;
  margin: 16px 0;
  font-size: 14px;
}
.tip strong { color: var(--primary); }

/* ── Index cards ── */
.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 24px;
}
.topic-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.topic-card:hover {
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(15,110,92,0.12);
}
.topic-card .icon { font-size: 28px; margin-bottom: 10px; }
.topic-card h3 { font-size: 15px; font-weight: 600; margin-bottom: 6px; }
.topic-card p { font-size: 13px; color: var(--text-secondary); margin: 0; }

/* ── Screenshot mockup ── */
.screenshot {
  background: #f0f0f0;
  border: 1px solid #ccc;
  border-radius: 8px;
  overflow: hidden;
  margin: 20px 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 13px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
}
.screenshot .sc-bar {
  background: #0F6E5C;
  color: #fff;
  padding: 7px 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.screenshot .sc-body {
  background: #fff;
  padding: 12px 14px;
  display: flex;
  gap: 10px;
}
.screenshot .sc-tree {
  width: 160px;
  flex-shrink: 0;
  border-right: 1px solid #e0e0e0;
  padding-right: 10px;
}
.screenshot .sc-tree-item {
  padding: 4px 6px;
  border-radius: 4px;
  cursor: default;
  color: #333;
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 5px;
}
.screenshot .sc-tree-item.selected {
  background: #E0EDE9;
  color: #0F6E5C;
  font-weight: 600;
}
.screenshot .sc-tree-item.indent { padding-left: 22px; }
.screenshot .sc-tree-item.indent2 { padding-left: 38px; }
.screenshot .sc-detail { flex: 1; }
.screenshot .sc-field {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font-size: 12px;
}
.screenshot .sc-field label { color: #888; width: 100px; flex-shrink: 0; }
.screenshot .sc-input {
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 3px 7px;
  background: #fafafa;
  color: #222;
  flex: 1;
  font-size: 12px;
}
.screenshot .sc-ribbon {
  border-bottom: 1px solid #e0e0e0;
  display: flex;
  gap: 0;
  padding: 0 8px;
  margin-bottom: 10px;
}
.screenshot .sc-tab {
  padding: 6px 12px;
  font-size: 12px;
  color: #777;
  cursor: default;
}
.screenshot .sc-tab.active {
  color: #0F6E5C;
  font-weight: 700;
  border-bottom: 2px solid #0F6E5C;
}
.screenshot .sc-row {
  display: flex;
  align-items: center;
  padding: 5px 6px;
  border-bottom: 1px solid #f0f0f0;
  font-size: 12px;
  gap: 8px;
}
.screenshot .sc-row:last-child { border-bottom: none; }
.screenshot .sc-row .sc-amt { margin-left: auto; font-weight: 600; }
.screenshot .sc-row .sc-amt.red { color: #c62828; }
.screenshot .sc-row .sc-amt.green { color: #2e7d32; }
.screenshot .sc-kpi {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.screenshot .sc-kpi-cell {
  background: #f8faf9;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 8px 14px;
  text-align: center;
  flex: 1;
  min-width: 80px;
}
.screenshot .sc-kpi-cell .val { font-size: 16px; font-weight: 700; color: #0F6E5C; }
.screenshot .sc-kpi-cell .lbl { font-size: 10px; color: #888; margin-top: 2px; }
.screenshot .sc-btn {
  display: inline-block;
  background: #0F6E5C;
  color: #fff;
  border-radius: 4px;
  padding: 4px 10px;
  font-size: 12px;
  margin-right: 6px;
}
.screenshot .sc-btn.outline {
  background: #fff;
  color: #0F6E5C;
  border: 1px solid #0F6E5C;
}
.screenshot .sc-section-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #888;
  margin: 10px 0 6px;
}
.screenshot .sc-badge {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
}
.screenshot .sc-badge.overdue { background: #fdecea; color: #c62828; }
.screenshot .sc-badge.current { background: #e8f5e9; color: #2e7d32; }
.screenshot .sc-badge.vacant  { background: #fff3e0; color: #e65100; }

/* ── Responsive ── */
@media (max-width: 700px) {
  .page-wrap { flex-direction: column; padding: 16px; }
  .sidebar { width: 100%; }
  .content { padding: 24px 20px; }
}