:root {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #21262d;
  --bg-card: #161b22;
  --border-color: #30363d;
  --border-highlight: #388bfd;

  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;
  --text-white: #ffffff;

  --color-error: #f85149;
  --color-error-bg: rgba(248, 81, 73, 0.12);
  --color-error-border: rgba(248, 81, 73, 0.4);

  --color-warning: #d29922;
  --color-warning-bg: rgba(210, 153, 34, 0.12);
  --color-warning-border: rgba(210, 153, 34, 0.4);

  --color-info: #58a6ff;
  --color-info-bg: rgba(88, 166, 255, 0.12);
  --color-info-border: rgba(88, 166, 255, 0.4);

  --color-success: #238636;
  --color-success-bright: #3fb950;
  --color-success-bg: rgba(63, 185, 80, 0.12);
  --color-success-border: rgba(63, 185, 80, 0.4);

  --color-purple: #bc8cff;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.6);
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.app-header {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 0.85rem 1.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #f0883e, #d29922);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
  font-size: 1.25rem;
  box-shadow: 0 0 12px rgba(240, 136, 62, 0.35);
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-white);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-badge {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background-color: var(--bg-tertiary);
  color: #ff9b5e;
  padding: 0.15rem 0.5rem;
  border-radius: 12px;
  border: 1px solid rgba(240, 136, 62, 0.4);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s ease-in-out;
}

.header-btn:hover {
  background-color: #30363d;
  border-color: #8b949e;
  color: var(--text-white);
}

/* Toolbar */
.toolbar-container {
  background-color: #12171f;
  border-bottom: 1px solid var(--border-color);
  padding: 0.75rem 1.75rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.preset-buttons {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.toolbar-label {
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-weight: 600;
  margin-right: 0.25rem;
}

.btn-preset {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.15s ease;
}

.btn-preset:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-white);
  border-color: var(--border-highlight);
}

.btn-preset.active {
  background-color: rgba(56, 139, 253, 0.15);
  border-color: var(--border-highlight);
  color: #79c0ff;
  font-weight: 600;
}

.editor-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.action-btn {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: all 0.15s;
}

.action-btn:hover {
  background-color: #30363d;
  color: var(--text-white);
}

.action-btn-primary {
  background-color: var(--color-success);
  border-color: #2ea043;
  color: white;
  font-weight: 600;
}

.action-btn-primary:hover {
  background-color: #2ea043;
}

.action-btn-accent {
  background-color: #1f6feb;
  border-color: #388bfd;
  color: white;
  font-weight: 600;
}

.action-btn-accent:hover {
  background-color: #388bfd;
}

/* Main Workspace */
.main-workspace {
  display: flex;
  flex: 1;
  overflow: hidden;
  height: calc(100vh - 120px);
}

@media (max-width: 992px) {
  .main-workspace {
    flex-direction: column;
    height: auto;
    overflow: visible;
  }
}

/* Left Pane: Editor */
.editor-pane {
  flex: 1;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border-color);
  background-color: var(--bg-primary);
  min-width: 0;
}

.pane-header {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 0.6rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.pane-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.editor-wrapper {
  flex: 1;
  position: relative;
  display: flex;
  background-color: #0d1117;
  overflow: hidden;
}

.line-numbers {
  width: 48px;
  background-color: #0b0e14;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.55;
  padding: 1rem 0.5rem 1rem 0;
  text-align: right;
  user-select: none;
  border-right: 1px solid #1c2128;
  overflow: hidden;
}

.toml-textarea {
  flex: 1;
  background: transparent;
  color: #c9d1d9;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.55;
  padding: 1rem;
  border: none;
  outline: none;
  resize: none;
  white-space: pre;
  overflow-wrap: normal;
  overflow-x: auto;
  tab-size: 4;
}

.toml-textarea:focus {
  background-color: rgba(255, 255, 255, 0.01);
}

.editor-footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 0.4rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Right Pane: Audit Dashboard */
.audit-pane {
  flex: 1;
  display: flex;
  flex-direction: column;
  background-color: #11151c;
  overflow-y: auto;
  min-width: 0;
}

.dashboard-content {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* Score Banner */
.score-card {
  background: linear-gradient(135deg, #161b22 0%, #1f242c 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.score-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #f0883e, #d29922, #3fb950);
}

.score-info {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.score-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-white);
}

.score-description {
  font-size: 0.85rem;
  color: var(--text-secondary);
  max-width: 380px;
}

.score-gauge-wrapper {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.score-circle {
  width: 84px;
  height: 84px;
  border-radius: 50%;
  background: conic-gradient(var(--score-color, #3fb950) calc(var(--score-pct, 100) * 1%), #21262d 0);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: 0 0 16px rgba(0, 0, 0, 0.4);
}

.score-circle-inner {
  width: 66px;
  height: 66px;
  border-radius: 50%;
  background-color: var(--bg-card);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.score-value {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-white);
  line-height: 1;
}

.score-grade {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--score-color, #3fb950);
}

/* Metrics Row */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 0.75rem;
}

.metric-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.metric-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
}

.metric-val {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-white);
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
}

.metric-badge {
  font-size: 0.7rem;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
}

/* View Tabs */
.view-tabs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s;
}

.tab-btn:hover {
  color: var(--text-white);
  background-color: var(--bg-secondary);
}

.tab-btn.active {
  color: var(--text-white);
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
}

/* Filter Bar */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding-bottom: 0.25rem;
}

.filter-pills {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.filter-pill {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.25rem 0.65rem;
  border-radius: 14px;
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.filter-pill:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-white);
}

.filter-pill.active {
  background-color: #21262d;
  border-color: #8b949e;
  color: var(--text-white);
  font-weight: 600;
}

.filter-count {
  font-size: 0.7rem;
  background-color: rgba(255, 255, 255, 0.1);
  padding: 0.1rem 0.35rem;
  border-radius: 8px;
}

/* Findings List */
.findings-container {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.finding-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  transition: border-color 0.15s ease;
  position: relative;
}

.finding-card:hover {
  border-color: #f0883e;
}

.finding-card.error {
  border-left: 4px solid var(--color-error);
}

.finding-card.warning {
  border-left: 4px solid var(--color-warning);
}

.finding-card.info {
  border-left: 4px solid var(--color-info);
}

.finding-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.finding-tags {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.badge-id {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
}

.badge-severity {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  letter-spacing: 0.04em;
}

.badge-severity.error {
  background-color: var(--color-error-bg);
  color: var(--color-error);
  border: 1px solid var(--color-error-border);
}

.badge-severity.warning {
  background-color: var(--color-warning-bg);
  color: var(--color-warning);
  border: 1px solid var(--color-warning-border);
}

.badge-severity.info {
  background-color: var(--color-info-bg);
  color: var(--color-info);
  border: 1px solid var(--color-info-border);
}

.badge-category {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.badge-line {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  background-color: #1f242c;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  cursor: pointer;
  border: 1px solid #2d333b;
}

.badge-line:hover {
  color: var(--color-info);
  border-color: var(--color-info);
}

.finding-message {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-white);
  line-height: 1.45;
}

.finding-recommendation {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

/* Tree View */
.tree-container {
  display: none;
  flex-direction: column;
  gap: 0.75rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.tree-node {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding-left: 1rem;
  border-left: 2px solid var(--border-color);
  margin-left: 0.5rem;
}

.tree-table-header {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 700;
  color: #ff9b5e;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tree-key-item {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tree-key-name {
  color: #79c0ff;
}

.tree-key-val {
  color: #7ee787;
  max-width: 280px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Clean Posture */
.clean-posture-card {
  background: rgba(35, 134, 54, 0.08);
  border: 1px solid rgba(63, 185, 80, 0.35);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
}

.clean-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background-color: rgba(63, 185, 80, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-success-bright);
  font-size: 1.6rem;
  box-shadow: 0 0 16px rgba(63, 185, 80, 0.3);
}

.clean-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-white);
}

.clean-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
  max-width: 440px;
}

/* Toast */
.toast-notice {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  background-color: #238636;
  color: white;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  z-index: 1000;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
}

.toast-notice.show {
  opacity: 1;
  transform: translateY(0);
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: #0d1117;
}
::-webkit-scrollbar-thumb {
  background: #21262d;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #30363d;
}