/* === Theme Custom Properties (Catppuccin-inspired) === */

:root {
  --bg-primary: #1e1e2e;
  --bg-secondary: #181825;
  --bg-tertiary: #313244;
  --text-primary: #cdd6f4;
  --text-secondary: #9399b2;
  --text-muted: #585b70;
  --accent: #cba6f7;
  --accent-hover: #b4befe;
  --success: #a6e3a1;
  --error: #f38ba8;
  --warning: #fab387;
  --border: #313244;
  --font-mono: "Fira Code", "JetBrains Mono", monospace;
  --font-ui: system-ui, -apple-system, sans-serif;
  color-scheme: dark;
}

[data-theme="light"] {
  --bg-primary: #eff1f5;
  --bg-secondary: #e6e9ef;
  --bg-tertiary: #ccd0da;
  --text-primary: #4c4f69;
  --text-secondary: #6c6f85;
  --text-muted: #9ca0b0;
  --accent: #8839ef;
  --accent-hover: #7287fd;
  --success: #40a02b;
  --error: #d20f39;
  --warning: #fe640b;
  --border: #ccd0da;
  color-scheme: light;
}

/* === Reset & Base === */

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

html, body {
  height: 100%;
  font-family: var(--font-ui);
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow: hidden;
}

/* === App Layout === */

.app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

/* === Toolbar === */

.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  flex-wrap: wrap;
  min-height: 48px;
}

.mode-selector {
  display: flex;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.mode-btn {
  padding: 6px 14px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
}

.mode-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.mode-btn.active {
  background: var(--accent);
  color: var(--bg-primary);
}

.threshold-control {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}

.threshold-control input[type="range"] {
  width: 100px;
  accent-color: var(--accent);
}

.threshold-control input[type="number"] {
  width: 52px;
  padding: 3px 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 12px;
  text-align: center;
}

.toggle-btn {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 500;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

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

.toggle-btn.active {
  background: var(--accent);
  color: var(--bg-primary);
  border-color: var(--accent);
}

.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 16px;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

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

.toolbar-spacer {
  flex: 1;
}

/* === Editor Panels === */

.editors {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.editor-pane {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
  border-right: 1px solid var(--border);
}

.editor-pane:last-child {
  border-right: none;
}

.editor-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  flex-shrink: 0;
}

.editor-header .status {
  font-size: 11px;
  font-weight: 400;
  text-transform: none;
  letter-spacing: normal;
}

.editor-header .status.success {
  color: var(--success);
}

.editor-header .status.partial {
  color: var(--warning);
}

.editor-header .status.failure {
  color: var(--error);
}

.editor-body {
  flex: 1;
  overflow: auto;
  min-height: 0;
}

/* CodeMirror overrides */
.editor-body .cm-editor {
  height: 100%;
  font-family: var(--font-mono);
  font-size: 13px;
}

.editor-body .cm-editor .cm-scroller {
  overflow: auto;
}

.editor-body .cm-editor.cm-focused {
  outline: none;
}

.editor-body .cm-editor .cm-gutters {
  background: var(--bg-secondary);
  color: var(--text-muted);
  border-right: 1px solid var(--border);
}

.editor-body .cm-editor .cm-activeLineGutter {
  background: var(--bg-tertiary);
}

.editor-body .cm-editor .cm-activeLine {
  background: rgba(203, 166, 247, 0.05);
}

.editor-body .cm-editor .cm-selectionBackground {
  background: rgba(203, 166, 247, 0.15) !important;
}

.editor-body .cm-editor .cm-cursor {
  border-left-color: var(--accent);
}

.editor-body .cm-editor .cm-content {
  caret-color: var(--accent);
}

.copy-btn {
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 11px;
  transition: background 0.15s, color 0.15s;
}

.copy-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

/* === Error Panel === */

.error-panel {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
  max-height: 200px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.error-panel.collapsed {
  max-height: none;
}

.error-panel-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  user-select: none;
}

.error-panel-header .count {
  padding: 1px 6px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 700;
}

.error-panel-header .count.errors {
  background: var(--error);
  color: var(--bg-primary);
}

.error-panel-header .count.fixes {
  background: var(--success);
  color: var(--bg-primary);
}

.error-panel-header .chevron {
  transition: transform 0.2s;
}

.error-panel.collapsed .error-panel-header .chevron {
  transform: rotate(-90deg);
}

.fix-all-btn {
  margin-left: auto;
  padding: 2px 10px;
  border: 1px solid var(--success);
  border-radius: 4px;
  background: transparent;
  color: var(--success);
  cursor: pointer;
  font-size: 11px;
  font-weight: 600;
  transition: background 0.15s;
}

.fix-all-btn:hover {
  background: var(--success);
  color: var(--bg-primary);
}

.error-list {
  overflow-y: auto;
  flex: 1;
  min-height: 0;
}

.error-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px;
  font-size: 12px;
  cursor: pointer;
  transition: background 0.1s;
}

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

.error-row .icon {
  flex-shrink: 0;
  width: 14px;
  text-align: center;
}

.error-row .icon.error {
  color: var(--error);
}

.error-row .icon.warning {
  color: var(--warning);
}

.error-row .location {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  flex-shrink: 0;
  min-width: 50px;
}

.error-row .message {
  flex: 1;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.fix-btn {
  padding: 1px 8px;
  border: 1px solid var(--success);
  border-radius: 3px;
  background: transparent;
  color: var(--success);
  cursor: pointer;
  font-size: 10px;
  font-weight: 600;
  flex-shrink: 0;
  transition: background 0.15s;
}

.fix-btn:hover {
  background: var(--success);
  color: var(--bg-primary);
}

/* === Settings Drawer === */

.settings-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 100;
}

.settings-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 320px;
  max-width: 90vw;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border);
  z-index: 101;
  display: flex;
  flex-direction: column;
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.3);
}

.settings-drawer .drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  font-weight: 600;
}

.settings-drawer .drawer-header button {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 18px;
}

.settings-drawer .save-form {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}

.settings-drawer .save-form input {
  flex: 1;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 13px;
}

.settings-drawer .save-form button {
  padding: 6px 14px;
  border: 1px solid var(--accent);
  border-radius: 4px;
  background: var(--accent);
  color: var(--bg-primary);
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 600;
}

.settings-drawer .slot-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
}

.save-slot {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  cursor: pointer;
  transition: background 0.1s;
}

.save-slot:hover {
  background: var(--bg-tertiary);
}

.save-slot .slot-info {
  flex: 1;
  overflow: hidden;
}

.save-slot .slot-name {
  font-size: 13px;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.save-slot .slot-time {
  font-size: 11px;
  color: var(--text-muted);
}

.save-slot .delete-btn {
  flex-shrink: 0;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 14px;
  padding: 2px 4px;
  transition: color 0.15s;
}

.save-slot .delete-btn:hover {
  color: var(--error);
}

/* === Toast === */

.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  padding: 8px 20px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  z-index: 200;
  pointer-events: none;
  animation: toast-in 0.2s ease-out;
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

/* === Processing Indicator === */

.processing-indicator {
  color: var(--accent);
  font-size: 11px;
  font-weight: 400;
  margin-left: 6px;
  animation: pulse 1.2s ease-in-out infinite;
}

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

.processing-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 13px;
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* === Responsive === */

@media (max-width: 768px) {
  .editors {
    flex-direction: column;
  }

  .editor-pane {
    border-right: none;
    border-bottom: 1px solid var(--border);
    min-height: 200px;
  }

  .editor-pane:last-child {
    border-bottom: none;
  }

  .toolbar {
    padding: 6px 10px;
    gap: 8px;
  }

  .threshold-control input[type="range"] {
    width: 70px;
  }

  .settings-drawer {
    width: 100vw;
    max-width: 100vw;
  }
}