:root {
  --bg: #0d1117;
  --surface: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --text-secondary: #8b949e;
  --accent: #f0b429;
  --green: #3fb950;
  --red: #f85149;
  --blue: #58a6ff;
  --yellow: #f0b429;
}

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

body {
  font-family: 'IBM Plex Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Topbar */
.topbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0 1.25rem;
  height: 48px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  flex-shrink: 0;
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  min-width: 90px;
}

.brand-icon { font-size: 1.1rem; }

.stats-bar {
  flex: 1;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.btn-icon {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  width: 28px;
  height: 28px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s, border-color 0.15s;
}

.btn-icon:hover { color: var(--accent); border-color: var(--accent); }

/* Layout */
.layout {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  width: 180px;
  border-right: 1px solid var(--border);
  padding: 1rem 0.75rem;
  overflow-y: auto;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.filter-section { display: flex; flex-direction: column; gap: 0.35rem; }

.filter-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.68rem;
  color: var(--text-secondary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.2rem;
}

.filter-check {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  color: var(--text);
  cursor: pointer;
  padding: 0.1rem 0;
}

.filter-check input[type="checkbox"],
.filter-check input[type="radio"] {
  accent-color: var(--accent);
  cursor: pointer;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
  cursor: pointer;
}

.search-input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.3rem 0.5rem;
  color: var(--text);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8rem;
  outline: none;
  transition: border-color 0.15s;
}

.search-input:focus { border-color: var(--accent); }

/* Main */
.main {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.opportunity-list { flex: 1; }

.loading {
  padding: 2rem;
  color: var(--text-secondary);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.85rem;
}

/* Opportunity rows */
.opp-row {
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.1s;
}

.opp-row:hover { background: var(--surface); }
.opp-row.expanded { background: var(--surface); }

.opp-summary {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 1.25rem;
}

.score-badge {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.68rem;
  font-weight: 500;
  flex-shrink: 0;
}

.score-low    { background: rgba(248, 81, 73, 0.2);  color: var(--red); }
.score-mid    { background: rgba(240, 180, 41, 0.2); color: var(--yellow); }
.score-high   { background: rgba(63, 185, 80, 0.2);  color: var(--green); }

.opp-main { flex: 1; min-width: 0; }

.opp-title {
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text);
}

.opp-meta {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  color: var(--text-secondary);
  margin-top: 0.15rem;
}

.opp-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.2rem;
  flex-shrink: 0;
}

.opp-date {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  color: var(--text-secondary);
}

.status-chip {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.65rem;
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.status-new       { background: rgba(88, 166, 255, 0.15); color: var(--blue); }
.status-watching  { background: rgba(63, 185, 80, 0.15);  color: var(--green); }
.status-bidding   { background: rgba(63, 185, 80, 0.25);  color: var(--green); }
.status-reviewed  { background: rgba(240, 180, 41, 0.15); color: var(--yellow); }
.status-passed    { background: rgba(139, 148, 158, 0.15); color: var(--text-secondary); }
.status-rejected  { background: rgba(248, 81, 73, 0.15);  color: var(--red); }

/* Expanded detail */
.opp-detail {
  padding: 0 1.25rem 1rem 1.25rem;
  border-top: 1px solid var(--border);
}

.opp-description {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-height: 120px;
  overflow-y: auto;
  margin-bottom: 0.75rem;
  padding-right: 0.5rem;
}

.opp-description::-webkit-scrollbar { width: 4px; }
.opp-description::-webkit-scrollbar-track { background: var(--bg); }
.opp-description::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.opp-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.status-btn {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: none;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.status-btn:hover { border-color: var(--accent); color: var(--accent); }
.status-btn.active-new       { border-color: var(--blue);  color: var(--blue); }
.status-btn.active-watching  { border-color: var(--green); color: var(--green); }
.status-btn.active-bidding   { border-color: var(--green); color: var(--green); }
.status-btn.active-reviewed  { border-color: var(--yellow); color: var(--yellow); }
.status-btn.active-passed    { border-color: var(--text-secondary); color: var(--text-secondary); }
.status-btn.active-rejected  { border-color: var(--red); color: var(--red); }

.ext-link {
  margin-left: auto;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  color: var(--accent);
  text-decoration: none;
  padding: 0.25rem 0.6rem;
  border: 1px solid rgba(240, 180, 41, 0.3);
  border-radius: 4px;
  transition: background 0.15s;
}

.ext-link:hover { background: rgba(240, 180, 41, 0.1); }

.notes-field {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.5rem 0.6rem;
  color: var(--text);
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.8rem;
  resize: vertical;
  min-height: 56px;
  outline: none;
  transition: border-color 0.15s;
}

.notes-field:focus { border-color: var(--accent); }
.notes-field::placeholder { color: var(--text-secondary); }

/* Pagination */
.pagination {
  display: flex;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border-top: 1px solid var(--border);
  align-items: center;
  flex-shrink: 0;
}

.page-btn {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  padding: 0.25rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: none;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s;
}

.page-btn:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.page-btn:disabled { opacity: 0.4; cursor: default; }
.page-btn.active { border-color: var(--accent); color: var(--accent); }

.page-info {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-left: auto;
}

/* Keywords modal */
.btn-text {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  cursor: pointer;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  transition: color 0.15s, border-color 0.15s;
}
.btn-text:hover { color: var(--accent); border-color: var(--accent); }

.kw-modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.kw-modal.hidden { display: none; }

.kw-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  width: min(820px, 94vw);
  max-height: 82vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.kw-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.kw-title {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.kw-body {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex: 1;
}

.kw-columns {
  display: flex;
  gap: 0;
  flex: 1;
  overflow: hidden;
}

.kw-col {
  flex: 1;
  padding: 1rem;
  overflow-y: auto;
  border-right: 1px solid var(--border);
}
.kw-col:last-child { border-right: none; }

.kw-list { display: flex; flex-direction: column; gap: 0.3rem; }

.kw-rule {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.4rem;
  border-radius: 4px;
  border: 1px solid transparent;
  transition: border-color 0.1s, background 0.1s;
}
.kw-rule:hover { background: var(--bg); border-color: var(--border); }

.kw-rule-keyword {
  flex: 1;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8rem;
  color: var(--text);
}

.kw-rule-weight {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  min-width: 36px;
  text-align: right;
}
.kw-rule-weight.pos { color: var(--green); }
.kw-rule-weight.neg { color: var(--red); }

.kw-del {
  background: none;
  border: none;
  color: var(--border);
  cursor: pointer;
  font-size: 0.85rem;
  padding: 0 0.2rem;
  line-height: 1;
  transition: color 0.15s;
}
.kw-del:hover { color: var(--red); }

.kw-add-form {
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.kw-add-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}

.kw-add-btn {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--accent);
  border-radius: 4px;
  background: none;
  color: var(--accent);
  cursor: pointer;
  transition: background 0.15s;
}
.kw-add-btn:hover { background: rgba(240, 180, 41, 0.1); }

.kw-error {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  color: var(--red);
  margin-top: 0.4rem;
}
.kw-error.hidden { display: none; }

/* Scrollbars */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }