:root {
  --bg-color: #f5f5f0;
  --text-color: #1a1a1a;
  --border-color: #1a1a1a;
  --muted-color: #666666;
  --accent: #f97316;
  --accent-green: #22c55e;
  --accent-blue: #3b82f6;
  --accent-red: #ef4444;
  --accent-purple: #8b5cf6;
  --accent-pink: #ec4899;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: 'JetBrains Mono', monospace;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.5;
}

#app { min-height: 100vh; display: flex; flex-direction: column; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #fff;
  border-bottom: 2px solid var(--border-color);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.layout { display: flex; flex: 1; }

.sidebar {
  width: 220px;
  background: #fff;
  border-right: 2px solid var(--border-color);
  padding: 16px 0;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 53px;
  bottom: 0;
  left: 0;
  overflow-y: auto;
  transition: transform 0.2s;
}

.nav-link {
  display: block;
  padding: 10px 20px;
  font-size: 12px;
  font-weight: 800;
  text-decoration: none;
  color: var(--text-color);
  border-left: 4px solid transparent;
}

.nav-link:hover { background: rgba(0,0,0,0.04); }
.nav-link.active { background: rgba(0,0,0,0.06); border-left-color: var(--accent); }

.main {
  flex: 1;
  margin-left: 220px;
  padding: 24px;
  max-width: calc(100% - 220px);
}

.pixel-border { border: 3px solid var(--border-color); }
.pixel-shadow { box-shadow: 6px 6px 0px rgba(0,0,0,0.25); }
.pixel-hover:hover { transform: translate(-2px, -2px); box-shadow: 8px 6px 0px rgba(0,0,0,0.35); }

.card {
  background: #fff;
  border: 3px solid var(--border-color);
  box-shadow: 6px 6px 0px rgba(0,0,0,0.25);
  padding: 20px;
  margin-bottom: 20px;
}

.card-title {
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.section-tag {
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  padding: 3px 10px;
  border: 2px solid var(--border-color);
  display: inline-block;
  margin-bottom: 12px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

th, td {
  border: 2px solid var(--border-color);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}

th { background: #f0f0f0; font-weight: 800; font-size: 11px; text-transform: uppercase; letter-spacing: 1px; }
td { font-weight: 600; }
tr:nth-child(even) td { background: #fafafa; }

.btn {
  font-size: 11px;
  font-weight: 800;
  padding: 6px 14px;
  border: 2px solid var(--border-color);
  background: var(--border-color);
  color: #fff;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.btn:hover { opacity: 0.9; }
.btn-secondary { background: #fff; color: var(--text-color); }
.btn-danger { background: #fff; color: var(--accent-red); border-color: var(--accent-red); }
.btn-sm { padding: 3px 8px; font-size: 10px; }

.add-btn { margin-bottom: 12px; }

.form-field { margin-bottom: 12px; }
.form-field label { display: block; font-size: 10px; font-weight: 800; margin-bottom: 4px; text-transform: uppercase; letter-spacing: 1px; }
.form-field input, .form-field select, .form-field textarea {
  width: 100%; padding: 8px; font-size: 13px; font-weight: 700;
  border: 2px solid var(--border-color); background: #fff; font-family: inherit;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { outline: none; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }

.save-btn { width: 100%; padding: 10px; font-size: 12px; font-weight: 800; border: 2px solid var(--border-color); background: var(--accent); color: #fff; cursor: pointer; }
.save-btn:hover { opacity: 0.9; }
.cancel-btn { width: 100%; padding: 10px; font-size: 12px; font-weight: 800; border: 2px solid var(--border-color); background: #fff; cursor: pointer; margin-top: 8px; }

.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); display: none; align-items: center; justify-content: center; z-index: 100; padding: 1rem; }
.modal-overlay.active { display: flex; }
.modal-box { background: var(--bg-color); width: 100%; max-width: 900px; max-height: 90vh; overflow-y: auto; padding: 1.5rem; position: relative; }

.empty-state { text-align: center; padding: 40px 20px; color: var(--muted-color); font-size: 12px; font-weight: 600; }
.hidden { display: none !important; }

.timeline { position: relative; padding-left: 36px; }
.timeline::before { content: ''; position: absolute; left: 11px; top: 8px; bottom: 8px; width: 3px; background: var(--border-color); }
.timeline-item { position: relative; margin-bottom: 24px; }
.timeline-badge { position: absolute; left: -36px; top: 0; width: 28px; height: 28px; border-radius: 50%; background: #fff; border: 2px solid var(--border-color); display: flex; align-items: center; justify-content: center; font-size: 14px; }
.timeline-content { background: #fff; border: 2px solid var(--border-color); padding: 12px; }
.timeline-meta { display: flex; gap: 8px; align-items: center; margin-bottom: 6px; flex-wrap: wrap; }
.timeline-date { font-size: 11px; font-weight: 800; color: var(--muted-color); }
.timeline-category { font-size: 10px; font-weight: 800; padding: 2px 8px; border: 2px solid var(--border-color); background: var(--bg-color); }
.timeline-title { font-size: 14px; font-weight: 800; margin-bottom: 4px; }
.timeline-desc { font-size: 12px; color: var(--muted-color); font-weight: 600; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin-bottom: 20px; }
.stat-card { background: #fff; border: 3px solid var(--border-color); padding: 16px; text-align: center; box-shadow: 6px 6px 0px rgba(0,0,0,0.25); }
.stat-value { font-size: 1.5rem; font-weight: 800; }
.stat-label { font-size: 10px; font-weight: 700; color: var(--muted-color); margin-top: 4px; }

.tab-bar { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.tab-btn { font-size: 11px; font-weight: 800; padding: 8px 16px; border: 2px solid var(--border-color); background: #fff; cursor: pointer; }
.tab-btn.active { background: var(--border-color); color: #fff; }
.tab-content { display: none; }
.tab-content.active { display: block; }

@media (max-width: 768px) {
  .sidebar { width: 220px; top: 53px; border-right: 2px solid var(--border-color); border-bottom: none; transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main { margin-left: 0; max-width: 100%; padding: 16px; }
  .pixel-border { border-width: 2px; }
  .pixel-shadow { box-shadow: 3px 3px 0px rgba(0,0,0,0.2); }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
}

.tab-content table { margin-top: 8px; }
.tab-content .section-tag { margin-top: 8px; }