:root {
  --bg-color: #0f0f0f;
  --text-color: #e8e8e8;
  --input-bg: #1c1c1c;
  --input-border: #2d2d2d;
  --button-bg: #252525;
  --button-hover: #333333;
  --button-text: #e8e8e8;
  --accent: #ec9c23;
  --accent-hover: #ffb84d;
  --accent-text: #000;
  --highlight-tag: #222222;
  --highlight-tag-border: #3a3a3a;
  --danger: #ef4444;
  --success: #10b981;
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --border-radius: 10px;
  --section-bg: #161616;
  --switch-bg: #3a3a3a;
  --checkbox-accent: #ec9c23;
  --checkbox-border: #4a4a4a;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  margin: 0;
  padding: 0;
  width: 360px;
  height: 600px;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: flex;
  flex-direction: column;
}

/* Loading Overlay */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-color);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.2s ease-out;
}

.loading-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.loading-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--input-border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

body.light {
  --bg-color: #f8f9fa;
  --text-color: #1a1a1a;
  --input-bg: #ffffff;
  --input-border: #e0e0e0;
  --button-bg: #f0f0f0;
  --button-hover: #e5e5e5;
  --button-text: #1a1a1a;
  --accent: #ec9c23;
  --accent-text: #000;
  --highlight-tag: #f5f5f5;
  --highlight-tag-border: #e0e0e0;
  --danger: #ef4444;
  --success: #10b981;
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --section-bg: #ffffff;
  --switch-bg: #d1d5db;
  --checkbox-accent: #ec9c23;
  --checkbox-border: #9ca3af;
}

.container {
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

/* Tabs */
.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 2px solid var(--input-border);
  margin-bottom: 8px;
}

.tab-button {
  flex: 1;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 8px 6px;
  font-size: 0.75em;
  font-weight: 500;
  color: var(--text-color);
  opacity: 0.6;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  margin-bottom: -2px;
  transition: all 0.2s;
}

.tab-button:hover {
  opacity: 0.9;
  background: var(--highlight-tag);
}

.tab-button.active {
  opacity: 1;
  border-bottom-color: var(--accent);
  color: var(--accent);
}

.tab-button i {
  font-size: 0.9em;
}

.tab-content {
  display: none;
  flex-direction: column;
  gap: 8px;
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

.tab-content.active {
  display: flex;
}

/* Header */
.header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  background: linear-gradient(135deg, var(--section-bg) 0%, var(--input-bg) 100%);
  border-radius: 8px;
  border: 1px solid var(--input-border);
  color: var(--text-color);
  font-weight: 600;
  font-size: 0.95em;
  margin-bottom: 0;
  box-shadow: var(--shadow-sm);
  letter-spacing: -0.02em;
}

.header-bar .title {
  display: flex;
  align-items: center;
  gap: 6px;
}

.header-bar .title i {
  color: var(--accent);
  font-size: 1em;
}

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

.icon-toggle {
  cursor: pointer;
  font-size: 16px;
  color: var(--accent);
  display: flex;
  align-items: center;
  padding: 4px;
  border-radius: 4px;
}

.icon-toggle:hover {
  color: var(--accent-hover);
  background: var(--highlight-tag);
}

.hidden-toggle {
  display: none;
}

/* GLOBAL HIGHLIGHT ICON: toggle-on/off */
.global-icon::before {
  content: "\f204";
}

#globalHighlightToggle:checked+.global-icon::before {
  content: "\f205";
}

/* THEME ICON: sun/moon - NO CHECKMARKS */
.theme-icon::before {
  content: "\f185";
}

#themeToggle:checked+.theme-icon::before {
  content: "\f186";
}

.toggle-icon {
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
}

/* Sections */
.section {
  background: var(--section-bg);
  border: 1px solid var(--input-border);
  border-radius: 8px;
  padding: 10px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.section:hover {
  box-shadow: var(--shadow);
}

.section[data-section="wordlist"] {
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

.section h3 {
  font-size: 0.85em;
  margin: 0 0 8px 0;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  letter-spacing: -0.01em;
  color: var(--text-color);
  opacity: 0.9;
}

/* Form Elements */
input[type="text"],
textarea,
select {
  width: 100%;
  padding: 6px 8px;
  border-radius: 6px;
  border: 1px solid var(--input-border);
  background-color: var(--input-bg);
  color: var(--text-color);
  font-size: 0.85em;
  box-sizing: border-box;
  margin-top: 4px;
  margin-bottom: 6px;
  font-family: inherit;
}

input[type="text"]:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(236, 156, 35, 0.1);
}

textarea {
  resize: none;
  height: 50px;
  font-size: 0.85em;
  line-height: 1.4;
  font-family: inherit;
}

/* Color Inputs */
input[type="color"] {
  background: none;
  border: 1.5px solid var(--input-border);
  border-radius: 6px;
  box-shadow: var(--shadow-sm);
  width: 24px;
  height: 24px;
  margin-left: 6px;
  cursor: pointer;
  padding: 0;
  appearance: none;
  -webkit-appearance: none;
  overflow: hidden;
}

input[type="color"]:hover {
  border-color: var(--accent);
}

input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
  border-radius: 0;
}

input[type="color"]::-webkit-color-swatch {
  border-radius: 0;
  border: none;
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
}

input[type="color"]::-moz-color-swatch {
  border-radius: 0;
  border: none;
  padding: 0;
  width: 100%;
  height: 100%;
}

.color-row {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 8px;
  margin-top: 4px;
}

.color-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8em;
  font-weight: 500;
}

/* Checkboxes */
input[type="checkbox"] {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-color: var(--input-bg);
  border: 1.5px solid var(--checkbox-border);
  border-radius: 3px;
  width: 16px;
  height: 16px;
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
}

input[type="checkbox"]:hover {
  border-color: var(--accent);
}

input[type="checkbox"]:checked {
  background-color: var(--accent);
  border-color: var(--accent);
}

input[type="checkbox"]:checked::before {
  content: "✓";
  position: absolute;
  top: -3px;
  left: 2px;
  color: white;
  font-size: 12px;
  font-weight: bold;
}

/* Switch Toggle */
input[type="checkbox"].switch {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  width: 36px;
  height: 20px;
  background: var(--switch-bg);
  border: none;
  border-radius: 20px;
  position: relative;
  outline: none;
  cursor: pointer;
  transition: background 0.2s;
}

input[type="checkbox"].switch::before {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: white;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  transition: left 0.2s;
}

input[type="checkbox"].switch:checked {
  background: var(--accent);
}

input[type="checkbox"].switch:checked::before {
  left: 18px;
}

input[type="checkbox"].switch:hover {
  opacity: 0.9;
}

input[type="checkbox"].switch::after {
  content: none !important;
}

label:has(input.switch) {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 4px 0;
}

/* Buttons */
button {
  background: var(--button-bg);
  color: var(--button-text);
  border: 1px solid var(--input-border);
  padding: 6px 10px;
  border-radius: 6px;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  font-size: 0.8em;
  font-family: inherit;
  white-space: nowrap;
  line-height: 1.2;
}

button i {
  display: flex;
  align-items: center;
  font-size: 0.95em;
}

button:hover {
  background: var(--button-hover);
}

button.danger {
  background: var(--danger);
  color: white !important;
  border-color: var(--danger);
}

button.danger:hover {
  background: #dc2626;
  border-color: #dc2626;
}

.button-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 6px;
  margin-bottom: 8px;
  align-items: center;
}

.button-row button {
  flex-shrink: 0;
}

.button-row label {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-size: 0.8em;
  padding: 4px 8px;
  border-radius: 4px;
}

.button-row label:hover {
  background: var(--highlight-tag);
}

.button-row input[type="checkbox"] {
  margin: 0;
  vertical-align: middle;
}

input[type="file"] {
  display: none;
}

/* Word List */
#wordSearch {
  width: 100%;
  margin-bottom: 6px;
  margin-top: 6px;
}

#wordList {
  margin-top: 6px;
  position: relative;
  overflow-y: auto;
  overflow-x: hidden;
  flex: 1;
  min-height: 0;
  border: 1px solid var(--input-border);
  border-radius: 6px;
  background: var(--section-bg);
  padding: 4px;
}

#wordList .word-item {
  width: calc(100% - 8px);
  left: 4px;
  height: 32px;
  display: grid;
  grid-template-columns: 18px 1fr 26px 26px;
  align-items: center;
  gap: 6px;
  padding: 4px 6px;
  box-sizing: border-box;
  border-radius: 4px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  transition: all 0.2s;
}

#wordList .word-item:hover {
  background: var(--highlight-tag);
  border-color: var(--accent);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

#wordList .word-item.disabled {
  opacity: 0.5;
  background: var(--section-bg);
}

#wordList .word-item.disabled:hover {
  opacity: 0.65;
}

#wordList .word-item.disabled input[type="text"] {
  color: var(--text-color) !important;
  opacity: 0.6;
  text-decoration: line-through;
}

#wordList input[type="text"] {
  min-width: 0;
  width: 100%;
  background-color: var(--section-bg) !important;
  color: var(--text-color) !important;
  border: 1px solid var(--input-border) !important;
  padding: 4px 6px;
  border-radius: 3px;
  font-size: 0.8em;
  transition: border-color 0.2s;
  margin: 0;
}

#wordList input[type="text"]:focus {
  border-color: var(--accent) !important;
  outline: none;
}

#wordList input[type="color"] {
  width: 22px;
  height: 22px;
  padding: 0;
  border-radius: 3px;
  border: 1px solid var(--input-border);
  cursor: pointer;
  transition: border-color 0.2s;
  align-self: center;
}

#wordList input[type="color"]:hover {
  border-color: var(--accent);
}

#wordList input[type="checkbox"] {
  margin: 0;
  width: 16px;
  height: 16px;
}

#wordCount {
  font-weight: normal;
  margin-left: -8px;
  margin-right: -8px;
}

/* Exception Panel */
.section[data-section="exceptions"] {
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

.exceptions-list {
  flex: 1;
  overflow-y: auto;
  margin: 8px 0;
  border: 1px solid var(--input-border);
  border-radius: 6px;
  background: var(--input-bg);
  min-height: 0;
}

.exception-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 6px 10px;
  border-bottom: none;
  font-size: 0.85em;
}

.exception-item:nth-child(odd) {
  background: var(--section-bg);
}

.exception-item:nth-child(even) {
  background: var(--input-bg);
}

.exception-item:hover {
  background: var(--highlight-tag) !important;
}

.exception-domain {
  flex: 1;
  word-break: break-word;
  font-family: inherit;
  font-size: 1em;
  line-height: 1.4;
  display: flex;
  align-items: center;
}

.exception-remove {
  background: var(--danger);
  color: white;
  border: none;
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.75em;
  font-weight: 500;
  white-space: nowrap;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.exception-remove:hover {
  background: #dc2626;
}

/* Footer */
.footer {
  padding: 10px 12px;
  border-top: 1px solid var(--input-border);
  background: var(--section-bg);
  flex-shrink: 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75em;
  color: var(--text-color);
  opacity: 0.6;
}

.version {
  font-weight: 500;
  font-family: 'Courier New', monospace;
}

.github-link {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--text-color);
  text-decoration: none;
  padding: 3px 6px;
  border-radius: 4px;
}

.github-link:hover {
  opacity: 1;
  color: var(--accent);
  background: var(--highlight-tag);
}

/* Scrollbars */
html,
body,
#wordList,
.exceptions-list {
  scrollbar-width: thin;
  scrollbar-color: var(--accent) var(--section-bg);
}

html::-webkit-scrollbar,
body::-webkit-scrollbar,
#wordList::-webkit-scrollbar,
.exceptions-list::-webkit-scrollbar {
  width: 8px;
  background: var(--section-bg);
  border-radius: 8px;
}

html::-webkit-scrollbar-thumb,
body::-webkit-scrollbar-thumb,
#wordList::-webkit-scrollbar-thumb,
.exceptions-list::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 8px;
  min-height: 24px;
  border: 2px solid var(--section-bg);
}

html::-webkit-scrollbar-thumb:hover,
body::-webkit-scrollbar-thumb:hover,
#wordList::-webkit-scrollbar-thumb:hover,
.exceptions-list::-webkit-scrollbar-thumb:hover {
  background: var(--accent-hover);
}

html::-webkit-scrollbar-corner,
body::-webkit-scrollbar-corner,
#wordList::-webkit-scrollbar-corner,
.exceptions-list::-webkit-scrollbar-corner {
  background: var(--section-bg);
}

/* Page Highlights Section */
.section[data-section="page-highlights"] {
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

.page-highlights-info {
  font-size: 0.85em;
  padding: 6px 8px;
  background: var(--input-bg);
  border-radius: 6px;
  border: 1px solid var(--input-border);
  margin-bottom: 8px;
}

.page-highlights-list {
  flex: 1;
  overflow-y: auto;
  margin-top: 8px;
  border: 1px solid var(--input-border);
  border-radius: 6px;
  background: var(--input-bg);
  min-height: 0;
}

.page-highlight-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-bottom: 1px solid var(--input-border);
  font-size: 0.85em;
  cursor: pointer;
  transition: all 0.2s;
}

.page-highlight-item:last-child {
  border-bottom: none;
}

.page-highlight-item:hover {
  background: var(--highlight-tag);
  border-left: 3px solid var(--accent);
  padding-left: 7px;
}

.page-highlight-word {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  word-break: break-word;
  font-weight: 500;
}

.page-highlight-preview {
  display: inline-block;
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 0.9em;
}

.page-highlight-count {
  background: var(--accent);
  color: var(--accent-text);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75em;
  font-weight: 600;
  flex-shrink: 0;
}

.page-highlight-nav {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

.page-highlight-nav button {
  padding: 4px 8px;
  font-size: 0.75em;
  min-width: 28px;
}

.page-highlight-position {
  font-size: 0.7em;
  color: var(--text-color);
  opacity: 0.6;
  margin-left: 4px;
}

.page-highlights-empty {
  padding: 20px;
  text-align: center;
  color: var(--text-color);
  opacity: 0.5;
  font-size: 0.85em;
}