:root {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #1c2128;
  --bg-hover: #22272e;
  --border: #30363d;
  --border-light: #3d444d;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #656d76;
  --accent: #3fb950;
  --accent-dim: #238636;
  --error: #f85149;
  --error-bg: rgba(248, 81, 73, 0.1);
  --warning: #d29922;
  --warning-bg: rgba(210, 153, 34, 0.1);
  --info: #58a6ff;
  --info-bg: rgba(88, 166, 255, 0.1);
  --debug: #8b949e;
  --debug-bg: rgba(139, 148, 158, 0.08);
  --critical: #f47067;
  --critical-bg: rgba(244, 112, 103, 0.15);
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --radius: 8px;
  --radius-sm: 4px;
}

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

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  overflow-x: hidden;
}

/* Header */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.5px;
}

.logo span { color: var(--text-secondary); font-weight: 400; }

.connection-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-secondary);
  padding: 4px 10px;
  border-radius: 12px;
  background: var(--bg-tertiary);
}

.connection-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s infinite;
}

.connection-dot.disconnected {
  background: var(--error);
  animation: none;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Filters */
.filters {
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
}

.filter-select,
.filter-input {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 5px 8px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color 0.15s;
}

.filter-select:focus,
.filter-input:focus {
  border-color: var(--accent);
}

.filter-select { cursor: pointer; min-width: 120px; text-overflow: ellipsis; overflow: hidden; white-space: nowrap; }

/* Searchable select */
.searchable-select {
  position: relative;
}

.ss-input {
  cursor: pointer !important;
  padding-right: 24px !important;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%238b949e'/%3E%3C/svg%3E") !important;
  background-repeat: no-repeat !important;
  background-position: right 8px center !important;
}

.ss-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 100%;
  max-height: 280px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  margin-top: 2px;
  z-index: 200;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
  display: flex;
  flex-direction: column;
}

.ss-search {
  background: var(--bg-tertiary);
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
  padding: 6px 10px;
  font-size: 12px;
  outline: none;
  font-family: var(--font-sans);
}

.ss-options {
  overflow-y: auto;
  max-height: 240px;
}

.ss-option {
  padding: 6px 10px;
  font-size: 12px;
  cursor: pointer;
  color: var(--text-primary);
  white-space: nowrap;
}

.ss-option:hover { background: var(--bg-hover); }
.ss-option.active { background: var(--accent-dim); color: #fff; }
.ss-option.reset { color: var(--text-muted); font-style: italic; }

.filter-input {
  min-width: 130px;
  flex: 0 1 auto;
}

.search-input {
  min-width: 180px;
  flex: 1 1 180px;
}

.filter-input::placeholder { color: var(--text-muted); }

.level-toggles {
  display: flex;
  gap: 4px;
}

.level-btn {
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
  user-select: none;
}

.level-btn.active { opacity: 1; }
.level-btn:not(.active) { opacity: 0.3; }

.level-btn.critical { background: var(--critical-bg); color: var(--critical); border-color: var(--critical); }
.level-btn.error { background: var(--error-bg); color: var(--error); border-color: var(--error); }
.level-btn.warning { background: var(--warning-bg); color: var(--warning); border-color: var(--warning); }
.level-btn.info { background: var(--info-bg); color: var(--info); border-color: var(--info); }
.level-btn.debug { background: var(--debug-bg); color: var(--debug); border-color: var(--debug); }

.time-btns {
  display: flex;
  gap: 2px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  padding: 2px;
  border: 1px solid var(--border);
}

.time-btn {
  padding: 4px 10px;
  border: none;
  border-radius: 3px;
  font-size: 12px;
  color: var(--text-secondary);
  background: transparent;
  cursor: pointer;
  transition: all 0.15s;
}

.time-btn.active {
  background: var(--accent-dim);
  color: #fff;
}

.time-btn:hover:not(.active) { color: var(--text-primary); }

.btn {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--border);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn:hover { background: var(--bg-hover); border-color: var(--border-light); }
.btn.active { background: var(--accent-dim); border-color: var(--accent); color: #fff; }

.btn-icon {
  padding: 6px 8px;
}

.filter-separator {
  width: 1px;
  height: 24px;
  background: var(--border);
  margin: 0 4px;
}

/* Stats bar */
.stats-bar {
  padding: 8px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

.stats-bar .count {
  color: var(--text-secondary);
  font-weight: 600;
}

.stats-bar .level-count {
  display: flex;
  align-items: center;
  gap: 4px;
}

.stats-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

/* Log table */
.log-container {
  padding: 0 24px 24px;
}

.log-table {
  width: 100%;
  border-collapse: collapse;
}

.log-table th {
  text-align: left;
  padding: 10px 12px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 57px;
  background: var(--bg-primary);
  z-index: 10;
}

.log-table th.col-time { width: 170px; }
.log-table th.col-level { width: 80px; }
.log-table th.col-service { width: 100px; }
.log-table th.col-message { }
.log-table th.col-actions { width: 40px; }

.log-row {
  cursor: pointer;
  transition: background 0.1s;
}

.log-row:hover { background: var(--bg-hover); }

.log-row td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  font-size: 13px;
}

.log-row.level-error { border-left: 3px solid var(--error); }
.log-row.level-critical { border-left: 3px solid var(--critical); }
.log-row.level-warning { border-left: 3px solid var(--warning); }
.log-row.level-info { border-left: 3px solid var(--info); }
.log-row.level-debug { border-left: 3px solid var(--debug); }

.log-time {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
}

.level-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 3px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.level-badge.error { background: var(--error-bg); color: var(--error); }
.level-badge.critical { background: var(--critical-bg); color: var(--critical); }
.level-badge.warning { background: var(--warning-bg); color: var(--warning); }
.level-badge.info { background: var(--info-bg); color: var(--info); }
.level-badge.debug { background: var(--debug-bg); color: var(--debug); }

.log-service {
  font-size: 12px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

.log-message {
  font-family: var(--font-mono);
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.log-message .exception-class {
  color: var(--error);
  font-weight: 600;
}

.expand-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 3px;
  font-size: 16px;
  line-height: 1;
  transition: all 0.15s;
}

.expand-btn:hover { color: var(--text-primary); background: var(--bg-tertiary); }
.expand-btn.open { transform: rotate(90deg); color: var(--accent); }

/* Detail panel */
.detail-row td {
  padding: 0 !important;
  border-bottom: 1px solid var(--border);
}

.detail-panel {
  padding: 16px 24px;
  background: var(--bg-secondary);
  border-left: 3px solid var(--accent);
  animation: slideDown 0.15s ease-out;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.detail-section {
  margin-bottom: 16px;
}

.detail-section:last-child { margin-bottom: 0; }

.detail-section-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}

.detail-section-title:hover { color: var(--text-secondary); }

.detail-section-title .toggle-icon {
  font-size: 10px;
  transition: transform 0.15s;
}

.detail-section-title .toggle-icon.open { transform: rotate(90deg); }

.exception-block {
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  padding: 12px 16px;
  border: 1px solid var(--border);
}

.exception-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.exception-class {
  color: var(--error);
  font-weight: 700;
  font-family: var(--font-mono);
  font-size: 14px;
}

.exception-file {
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 12px;
}

.exception-message {
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 13px;
  word-break: break-word;
}

/* Stack trace */
.trace-list {
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  max-height: 400px;
  overflow-y: auto;
}

.trace-frame {
  padding: 4px 12px;
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}

.trace-frame:last-child { border-bottom: none; }

.trace-frame:hover { background: var(--bg-hover); }

.trace-num {
  color: var(--text-muted);
  min-width: 28px;
  text-align: right;
  user-select: none;
}

.trace-path { color: var(--text-secondary); word-break: break-all; }
.trace-frame.app-code .trace-path { color: var(--accent); font-weight: 500; }

/* Request details */
.request-info {
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  padding: 12px 16px;
  border: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 12px;
}

.request-url {
  color: var(--info);
  margin-bottom: 8px;
  word-break: break-all;
}

.request-headers dt {
  color: var(--text-muted);
  float: left;
  margin-right: 8px;
}

.request-headers dd {
  color: var(--text-secondary);
  margin-bottom: 2px;
  word-break: break-all;
}

/* Raw JSON */
.raw-json {
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 500px;
  overflow-y: auto;
  line-height: 1.6;
}

.json-key { color: var(--info); }
.json-string { color: var(--accent); }
.json-number { color: var(--warning); }
.json-bool { color: var(--critical); }
.json-null { color: var(--text-muted); }

/* Group mode */
.group-row {
  cursor: pointer;
}

.group-row:hover { background: var(--bg-hover); }

.group-row td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

.group-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 22px;
  padding: 0 8px;
  border-radius: 11px;
  font-size: 11px;
  font-weight: 700;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.group-count.high { background: var(--error-bg); color: var(--error); border-color: var(--error); }

.group-bar {
  width: 60px;
  height: 4px;
  background: var(--bg-tertiary);
  border-radius: 2px;
  overflow: hidden;
  display: inline-block;
  vertical-align: middle;
  margin-left: 8px;
}

.group-bar-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 0.3s;
}

/* Loading / empty */
.state-message {
  text-align: center;
  padding: 60px 24px;
  color: var(--text-muted);
}

.state-message .icon {
  font-size: 40px;
  margin-bottom: 12px;
  opacity: 0.5;
}

.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 12px;
}

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

.load-more {
  text-align: center;
  padding: 12px;
}

.load-more button {
  padding: 8px 24px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 13px;
}

.load-more button:hover { background: var(--bg-tertiary); color: var(--text-primary); }

/* Timeline */
.timeline-container {
  position: relative;
  padding: 12px 24px 8px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  display: none;
}

.timeline-container.open { display: block; }

.timeline-container canvas {
  width: 100%;
  display: block;
  cursor: crosshair;
}

.timeline-tooltip {
  position: absolute;
  top: 4px;
  padding: 4px 10px;
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-size: 11px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  pointer-events: none;
  white-space: nowrap;
  z-index: 20;
  box-shadow: 0 2px 8px rgba(0,0,0,0.4);
}

.timeline-hint {
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 4px;
}

/* Detail actions */
.detail-actions {
  margin-top: 12px;
  display: flex;
  gap: 8px;
}

.btn-copy {
  font-size: 11px;
  padding: 4px 10px;
}

/* Login */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
}

.login-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  width: 340px;
}

/* JSON toggle */
.json-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

.json-toggle input {
  accent-color: var(--accent);
  cursor: pointer;
}

/* Date inputs */
.date-input {
  min-width: 130px !important;
  max-width: 150px !important;
  font-size: 11px !important;
}

.date-input::-webkit-calendar-picker-indicator {
  filter: invert(0.7);
  cursor: pointer;
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-light); }

/* Responsive */
@media (max-width: 900px) {
  .filters { padding: 8px 12px; }
  .log-container { padding: 0 8px 8px; }
  .filter-input { min-width: 120px; }
  .header { padding: 12px 16px; }
  .detail-panel { padding: 12px 16px; }
}