:root {
  --bg: #0f1117;
  --bg-card: #181a20;
  --bg-raised: #1e2028;
  --bg-input: #23252e;
  --border: #2a2d38;
  --border-focus: #5b8af5;
  --text: #e4e6eb;
  --text-dim: #8b8f9a;
  --text-muted: #5c5f6a;
  --accent: #5b8af5;
  --accent-hover: #7aa2ff;
  --green: #34d399;
  --red: #f87171;
  --orange: #fbbf24;
  --purple: #a78bfa;
  --cyan: #22d3ee;
  --severity-critical: #ef4444;
  --severity-high: #f97316;
  --severity-medium: #eab308;
  --severity-low: #6b7280;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 2px 8px rgba(0,0,0,0.3);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* Layout */
.app-header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.app-header .logo {
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.5px;
}

.app-header .logo span {
  color: var(--text-dim);
  font-weight: 400;
  font-size: 13px;
  margin-left: 8px;
}

.app-header nav {
  display: flex;
  gap: 4px;
  margin-left: auto;
}

.app-header nav a {
  padding: 6px 12px;
  border-radius: var(--radius);
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 500;
  transition: all 0.15s;
}

.app-header nav a:hover,
.app-header nav a.active {
  color: var(--text);
  background: var(--bg-raised);
}

.app-header nav .nav-sep {
  color: var(--border);
  padding: 6px 4px;
  font-size: 13px;
  user-select: none;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 24px 0;
  font-size: 13px;
  color: var(--text-dim);
}

.breadcrumb a { color: var(--text-dim); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { opacity: 0.4; }

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.card-header h2 {
  font-size: 16px;
  font-weight: 600;
}

.card-header h3 {
  font-size: 14px;
  font-weight: 600;
}

/* Stat cards */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
}

.stat-card .label {
  font-size: 12px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.stat-card .value {
  font-size: 28px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.stat-card .sub {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Grid layouts */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
}

@media (max-width: 900px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

/* Tables */
.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th {
  text-align: left;
  padding: 10px 12px;
  font-weight: 600;
  color: var(--text-dim);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

tr:hover td { background: var(--bg-raised); }

td.mono {
  font-family: var(--mono);
  font-size: 12px;
}

td.truncate {
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Status badges */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.badge-success { background: rgba(52,211,153,0.15); color: var(--green); }
.badge-warning { background: rgba(251,191,36,0.15); color: var(--orange); }
.badge-error { background: rgba(248,113,113,0.15); color: var(--red); }
.badge-info { background: rgba(91,138,245,0.15); color: var(--accent); }

.badge-critical { background: rgba(239,68,68,0.15); color: var(--severity-critical); }
.badge-high { background: rgba(249,115,22,0.15); color: var(--severity-high); }
.badge-medium { background: rgba(234,179,8,0.15); color: var(--severity-medium); }
.badge-low { background: rgba(107,114,128,0.15); color: var(--severity-low); }
.badge-apache { background: rgba(52,211,153,0.15); color: var(--green); }
.badge-modsec { background: rgba(167,139,250,0.15); color: var(--purple); }

/* Status code coloring */
.status-2xx { color: var(--green); }
.status-3xx { color: var(--cyan); }
.status-4xx { color: var(--orange); }
.status-5xx { color: var(--red); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-raised);
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  font-family: var(--font);
}

.btn:hover { background: var(--bg-input); border-color: var(--text-muted); }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

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

.btn-danger {
  background: rgba(248,113,113,0.1);
  border-color: rgba(248,113,113,0.3);
  color: var(--red);
}

.btn-danger:hover { background: rgba(248,113,113,0.2); }

/* Live log rows */
.live-row-danger { background: rgba(248,113,113,0.1); }
.live-row-danger td { color: var(--red); }
.live-row-warn { background: rgba(251,191,36,0.06); }
.live-row-warn td { color: var(--orange); }

/* Agent/live badges */
.badge-syslog { background: rgba(52,211,153,0.15); color: var(--green); }
.badge-journald { background: rgba(91,138,245,0.15); color: var(--accent); }
.badge-eventlog { background: rgba(167,139,250,0.15); color: var(--purple); }
.badge-iis { background: rgba(251,191,36,0.15); color: var(--orange); }
.badge-nginx { background: rgba(52,211,153,0.15); color: var(--green); }

.btn-sm { padding: 4px 10px; font-size: 12px; }

.btn-group { display: flex; gap: 8px; }

/* Inputs */
input, textarea, select {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 12px;
  color: var(--text);
  font-size: 13px;
  font-family: var(--font);
  width: 100%;
  transition: border-color 0.15s;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--border-focus);
}

textarea { resize: vertical; min-height: 80px; }

textarea.paste-zone {
  font-family: var(--mono);
  font-size: 12px;
  min-height: 200px;
  line-height: 1.5;
}

label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-dim);
  margin-bottom: 4px;
}

.form-group { margin-bottom: 12px; }

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  min-width: 400px;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal h2 { font-size: 18px; margin-bottom: 16px; }

/* File upload zone */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text-dim);
}

.upload-zone:hover,
.upload-zone.dragover {
  border-color: var(--accent);
  background: rgba(91,138,245,0.05);
  color: var(--accent);
}

.upload-zone .icon { font-size: 36px; margin-bottom: 8px; }
.upload-zone .hint { font-size: 12px; margin-top: 4px; }

/* Progress */
.progress-bar {
  height: 4px;
  background: var(--bg-input);
  border-radius: 2px;
  overflow: hidden;
}

.progress-bar .fill {
  height: 100%;
  background: var(--accent);
  transition: width 0.3s;
}

/* Tabs */
.tabs {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}

.tab {
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-dim);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all 0.15s;
}

.tab:hover { color: var(--text); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
  font-size: 13px;
}

.pagination .info { color: var(--text-dim); }

/* Country flag emoji helper */
.country { font-size: 12px; }

/* Loading */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  color: var(--text-dim);
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin-right: 10px;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Empty state */
.empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-dim);
}

.empty .icon { font-size: 48px; margin-bottom: 12px; opacity: 0.5; }
.empty h3 { font-size: 16px; margin-bottom: 4px; color: var(--text); }

/* Markdown rendering in AI analysis */
.markdown h1 { font-size: 20px; font-weight: 700; margin: 20px 0 8px; }
.markdown h2 { font-size: 16px; font-weight: 700; margin: 16px 0 8px; }
.markdown h3 { font-size: 14px; font-weight: 600; margin: 12px 0 6px; }
.markdown p { margin-bottom: 8px; }
.markdown ul, .markdown ol { margin: 8px 0 8px 20px; }
.markdown li { margin-bottom: 4px; }
.markdown code {
  background: var(--bg-input);
  padding: 1px 5px;
  border-radius: 3px;
  font-family: var(--mono);
  font-size: 12px;
}
.markdown pre {
  background: var(--bg-input);
  padding: 12px;
  border-radius: var(--radius);
  overflow-x: auto;
  margin: 8px 0;
}
.markdown pre code { padding: 0; background: none; }
.markdown strong { font-weight: 600; }
.markdown blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 12px;
  color: var(--text-dim);
  margin: 8px 0;
}

/* Chat interface */
.chat-messages {
  max-height: 400px;
  overflow-y: auto;
  margin-bottom: 12px;
}

.chat-msg {
  padding: 10px 14px;
  margin-bottom: 8px;
  border-radius: var(--radius);
}

.chat-msg.user {
  background: var(--bg-input);
  margin-left: 40px;
}

.chat-msg.assistant {
  background: rgba(91,138,245,0.08);
  border: 1px solid rgba(91,138,245,0.15);
}

.chat-msg .role {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-dim);
  margin-bottom: 4px;
  text-transform: uppercase;
}

.chat-input {
  display: flex;
  gap: 8px;
}

.chat-input input { flex: 1; }

/* Project cards grid */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  cursor: pointer;
  transition: all 0.2s;
}

.project-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.project-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.project-card .desc {
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.project-card .meta {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: var(--text-muted);
}

.project-card .meta span { display: flex; align-items: center; gap: 4px; }

/* Filters bar */
.filters {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
  align-items: center;
}

.filters input, .filters select {
  width: auto;
  min-width: 140px;
}

/* Highlight row */
tr.suspicious td { background: rgba(248,113,113,0.06); }

/* Scrollable */
.scroll-y { overflow-y: auto; max-height: 500px; }

/* Country code to flag */
.flag { margin-right: 4px; }

/* Charts */
.chart-container {
  position: relative;
  height: 280px;
}

/* Environment tags */
.env-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 6px;
}

.env-tag {
  display: inline-block;
  padding: 1px 7px;
  border-radius: 3px;
  font-size: 10px;
  font-weight: 600;
  background: rgba(91,138,245,0.12);
  color: var(--accent);
  letter-spacing: 0.3px;
}

/* Tag picker in modals */
.tag-picker {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 4px;
}

.tag-picker .tag-group h4 {
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

.tag-picker label.tag-option {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 400;
  color: var(--text);
  cursor: pointer;
  margin-bottom: 3px;
}

.tag-picker label.tag-option input[type="checkbox"] {
  width: 14px;
  min-width: 14px;
  height: 14px;
  accent-color: var(--accent);
}

/* Noise severity badge */
.badge-noise {
  background: rgba(107,114,128,0.08);
  color: var(--text-muted);
}

/* Noise section for suspicious activity */
.noise-section {
  opacity: 0.55;
  transition: opacity 0.2s;
}

.noise-section:hover {
  opacity: 0.85;
}

.noise-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 16px;
}

.noise-toggle:hover {
  color: var(--text);
  border-color: var(--text-muted);
}

.noise-toggle .arrow {
  transition: transform 0.2s;
  font-size: 10px;
}

.noise-toggle.open .arrow {
  transform: rotate(90deg);
}

/* Diagnose Chat */
.diagnose-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 16px;
  min-height: calc(100vh - 120px);
}

.diagnose-sidebar {
  height: fit-content;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
  position: sticky;
  top: 72px;
}

.diagnose-chat-item {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.15s;
  position: relative;
}

.diagnose-chat-item:hover { background: var(--bg-raised); }
.diagnose-chat-item.active { background: rgba(91,138,245,0.1); border-left: 3px solid var(--accent); }

.diagnose-chat-title {
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding-right: 24px;
}

.diagnose-chat-meta {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

.diagnose-chat-del {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 2px 6px;
  font-size: 10px;
  opacity: 0;
  transition: opacity 0.15s;
}

.diagnose-chat-item:hover .diagnose-chat-del { opacity: 1; }

.diagnose-chat-card {
  display: flex;
  flex-direction: column;
  min-height: calc(100vh - 120px);
}

.diagnose-messages {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
  max-height: calc(100vh - 260px);
}

.diagnose-msg {
  padding: 12px 16px;
  margin: 6px 0;
  border-radius: var(--radius);
  font-size: 13px;
  line-height: 1.6;
}

.diagnose-msg.user {
  background: var(--bg-input);
  margin-left: 60px;
}

.diagnose-msg.assistant {
  background: rgba(91,138,245,0.06);
  border: 1px solid rgba(91,138,245,0.12);
}

.diagnose-msg-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.diagnose-msg-role {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.diagnose-pdf-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  font-size: 11px;
  color: var(--text-muted);
  border-color: transparent;
  background: transparent;
  opacity: 0;
  transition: all 0.15s;
}

.diagnose-msg:hover .diagnose-pdf-btn { opacity: 1; }
.diagnose-pdf-btn:hover { color: var(--accent); border-color: var(--accent); background: rgba(91,138,245,0.08); }

.diagnose-input-row {
  display: flex;
  gap: 8px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.diagnose-input-row input {
  flex: 1;
  padding: 10px 14px;
  font-size: 14px;
}

.diagnose-status {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  font-size: 12px;
  color: var(--accent);
  background: rgba(91,138,245,0.06);
  border-radius: var(--radius);
  margin-bottom: 8px;
}

.diagnose-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
  justify-content: center;
}

.diagnose-suggest {
  font-size: 12px;
  color: var(--text-dim);
  white-space: nowrap;
}

.diagnose-suggest:hover { color: var(--accent); border-color: var(--accent); }

/* Tool progress chips */
.diagnose-tool-progress {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 8px;
}

.diagnose-tool-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 11px;
  font-family: var(--mono);
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text-dim);
}

.diagnose-tool-chip.running {
  border-color: var(--accent);
  color: var(--accent);
  animation: toolPulse 1.5s ease-in-out infinite;
}

.diagnose-tool-chip.done {
  border-color: var(--green);
  color: var(--green);
}

.diagnose-tool-icon { font-size: 12px; }

.diagnose-tool-params {
  color: var(--text-muted);
  font-size: 10px;
}

.diagnose-tool-result {
  color: var(--text-dim);
  font-size: 10px;
  margin-left: 4px;
}

.diagnose-tools-used {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  align-items: center;
  margin-bottom: 8px;
}

.diagnose-tools-label {
  font-size: 10px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.diagnose-tool-badge {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 10px;
  font-family: var(--mono);
  background: rgba(52,211,153,0.1);
  color: var(--green);
  border: 1px solid rgba(52,211,153,0.2);
}

@keyframes toolPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

/* Responsive */
/* Toast notification */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: #1a1b26;
  color: #c0caf5;
  border: 1px solid #7aa2f7;
  padding: 10px 20px;
  border-radius: 6px;
  font-size: 13px;
  z-index: 10000;
  opacity: 0;
  transition: opacity 0.3s, transform 0.3s;
  pointer-events: none;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@media (max-width: 768px) {
  .container { padding: 12px; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .project-grid { grid-template-columns: 1fr; }
  .tag-picker { grid-template-columns: 1fr; }
  .diagnose-layout { grid-template-columns: 1fr; }
  .diagnose-sidebar { position: static; max-height: 200px; }
  .diagnose-msg.user { margin-left: 20px; }
}