/* Cargo Doctor - Rust Dark Engineering Theme */
:root {
  --bg-main: #0c0e14;
  --bg-card: #151922;
  --bg-card-hover: #1b212e;
  --bg-input: #090b10;
  --bg-header: #11141c;
  --border-color: #232938;
  --border-focus: #f97316;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --accent-rust: #ea580c;
  --accent-orange: #f97316;
  --accent-amber: #f59e0b;
  --status-ok: #10b981;
  --status-warn: #f59e0b;
  --status-err: #ef4444;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --radius: 8px;
  --radius-sm: 4px;
}

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

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

/* Header */
header {
  background-color: var(--bg-header);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.brand-icon {
  background: linear-gradient(135deg, #ea580c 0%, #f97316 100%);
  color: #fff;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1rem;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 4px;
  box-shadow: 0 0 12px rgba(234, 88, 12, 0.3);
}

.brand h1 {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.2px;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--text-muted);
}

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

.control-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.control-group label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

select, input[type="text"], textarea {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-family: inherit;
  font-size: 0.85rem;
  outline: none;
  transition: border-color 0.15s ease;
}

select:focus, input[type="text"]:focus, textarea:focus {
  border-color: var(--accent-orange);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border-color);
  background-color: var(--bg-card);
  color: var(--text-main);
  text-decoration: none;
  transition: all 0.15s ease;
}

.btn:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--accent-orange);
  color: var(--accent-orange);
}

.btn-primary {
  background: linear-gradient(135deg, #ea580c 0%, #f97316 100%);
  color: #fff;
  border: none;
}

.btn-primary:hover {
  filter: brightness(1.15);
  color: #fff;
}

.btn-success {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #fff;
  border: none;
}

.btn-success:hover {
  filter: brightness(1.15);
  color: #fff;
}

.btn-sm {
  padding: 4px 10px;
  font-size: 0.78rem;
}

/* Main Container */
main {
  flex: 1;
  padding: 20px 24px;
  max-width: 1600px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Alerts */
.alert {
  padding: 10px 16px;
  border-radius: var(--radius);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-left: 4px solid transparent;
}

.alert-error {
  background-color: rgba(239, 68, 68, 0.15);
  border-color: var(--status-err);
  color: #fca5a5;
}

.alert-success {
  background-color: rgba(16, 185, 129, 0.15);
  border-color: var(--status-ok);
  color: #6ee7b7;
}

/* Telemetry Summary Cards */
.telemetry-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.stat-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: relative;
  overflow: hidden;
}

.stat-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

.stat-value {
  font-size: 1.35rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: #fff;
}

.score-badge {
  font-size: 1.4rem;
  font-weight: 900;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  display: inline-block;
}

.score-aplus, .score-a { color: var(--status-ok); }
.score-b { color: #38bdf8; }
.score-c { color: var(--status-warn); }
.score-d, .score-f { color: var(--status-err); }

/* Workbench Grid (Split View) */
.workbench-grid {
  display: grid;
  grid-template-columns: 480px 1fr;
  gap: 16px;
  min-height: 560px;
}

@media (max-width: 1080px) {
  .workbench-grid {
    grid-template-columns: 1fr;
  }
}

.panel-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 10px;
}

.panel-title {
  font-size: 0.88rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent-orange);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Editor Section */
.editor-wrapper {
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 100%;
}

.toml-textarea {
  width: 100%;
  flex: 1;
  min-height: 440px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px;
  color: #e2e8f0;
  resize: vertical;
  line-height: 1.6;
  white-space: pre;
}

.preset-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

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

.chip {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 3px 10px;
  font-size: 0.75rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
}

.chip:hover {
  border-color: var(--accent-orange);
  color: var(--accent-orange);
  background-color: rgba(234, 88, 12, 0.08);
}

/* Navigation Tabs */
.nav-tabs {
  display: flex;
  gap: 6px;
  border-bottom: 1px solid var(--border-color);
  overflow-x: auto;
}

.nav-tab {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 10px 16px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.nav-tab:hover {
  color: #fff;
}

.nav-tab.active {
  color: var(--accent-orange);
  border-bottom-color: var(--accent-orange);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

/* Findings List */
.issues-container {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 480px;
  overflow-y: auto;
}

.issue-card {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-left: 4px solid transparent;
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: background-color 0.15s ease;
}

.issue-card:hover {
  background-color: var(--bg-card-hover);
}

.issue-card.error {
  border-left-color: var(--status-err);
}

.issue-card.warning {
  border-left-color: var(--status-warn);
}

.issue-card.suggestion {
  border-left-color: #38bdf8;
}

.issue-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.issue-rule {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 6px;
}

.badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 3px;
  text-transform: uppercase;
}

.badge-error {
  background-color: rgba(239, 68, 68, 0.2);
  color: var(--status-err);
}

.badge-warning {
  background-color: rgba(245, 158, 11, 0.2);
  color: var(--status-warn);
}

.badge-suggestion {
  background-color: rgba(56, 189, 248, 0.2);
  color: #38bdf8;
}

.badge-fixable {
  background-color: rgba(16, 185, 129, 0.2);
  color: var(--status-ok);
}

.issue-message {
  font-size: 0.84rem;
  color: #e2e8f0;
}

.issue-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.74rem;
  color: var(--text-dim);
}

/* Data Tables */
.data-table-container {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  text-align: left;
}

.data-table th {
  background-color: var(--bg-header);
  color: var(--text-muted);
  font-weight: 600;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-color);
}

.data-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-color);
  font-family: var(--font-mono);
}

.data-table tr:hover td {
  background-color: var(--bg-card-hover);
}

/* Metadata Checklist Grid */
.checklist-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.checklist-item {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.checklist-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.checklist-status {
  font-weight: 700;
  font-size: 0.82rem;
}

/* Footer */
footer {
  border-top: 1px solid var(--border-color);
  padding: 16px 24px;
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-top: auto;
}