:root {
  --bg: #000000;
  --fg: #ffffff;
  --accent-h: 343;
  --accent-s: 66%;
  --accent-l: 63%;
  --accent-hsl: var(--accent-h) var(--accent-s) var(--accent-l);
  --accent: hsl(var(--accent-hsl));
  --logo-light: #ff9ab8;
  --logo-middle: #e8597f;
  --logo-dark: #b32a58;
  --radius: 6px;
  --warning: #ffb020;
  --frame: hsl(343 66% 11%);
}

:root[data-theme="midnight"] {
  --bg: #241b38;
  --fg: #ffffff;
  --accent-h: 150;
  --accent-s: 45%;
  --accent-l: 68%;
  --logo-light: #bbf7d9;
  --logo-middle: #82d9ad;
  --logo-dark: #48ad7a;
  --radius: 8px;
  --warning: #ffb020;
  --frame: hsl(150 45% 12%);
}

:root[data-theme="paper"] {
  --bg: #f5f1eb;
  --fg: #241b2e;
  --accent-h: 259;
  --accent-s: 48%;
  --accent-l: 38%;
  --logo-light: #7d56d2;
  --logo-middle: #512d9f;
  --logo-dark: #362163;
  --radius: 8px;
  --warning: #8a4a00;
  --frame: var(--fg);
}

:root[data-theme="frost"] {
  --bg: #eef2f7;
  --fg: #16202c;
  --accent-h: 205;
  --accent-s: 75%;
  --accent-l: 36%;
  --logo-light: #25a8e4;
  --logo-middle: #156dac;
  --logo-dark: #143e71;
  --radius: 8px;
  --warning: #8a4a00;
  --frame: var(--fg);
}

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

/* Author display rules otherwise override the browser's built-in hidden rule. */
[hidden] {
  display: none !important;
}

html, body {
  width: 340px;
}

html {
  overflow: hidden;
  background: var(--frame);
}

body {
  font-family: Menlo, Consolas, monospace;
  background: var(--frame);
  padding: 4px;
  color: var(--accent);
}

.container {
  background: var(--bg);
  overflow: hidden;
  box-shadow: 0 0 10px hsl(var(--accent-hsl) / 0.45);
}

/* Gecko popups have rounded panel chrome; Chromium popups are square. */
@supports (-moz-appearance: none) {
  .container {
    border-radius: 6px;
  }
}

.scroll-area {
  padding: 16px 18px 10px 18px;
  /* JS measures the styled scrollbar; the negative margin hides its reserved gutter. */
  scrollbar-gutter: stable;
  margin-right: calc(-1 * var(--scrollbar-w, 0px));
  overflow-x: hidden;
  max-height: 592px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: hsl(var(--accent-hsl) / 0.35) transparent;
}

.scroll-area::-webkit-scrollbar {
  width: 5px;
}

.scroll-area::-webkit-scrollbar-track {
  background: transparent;
}

.scroll-area::-webkit-scrollbar-thumb {
  background: hsl(var(--accent-hsl) / 0.35);
  border-radius: 3px;
}

.scroll-area::-webkit-scrollbar-thumb:hover {
  background: hsl(var(--accent-hsl) / 0.6);
}

header {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  padding-bottom: 6px;
  border-bottom: 1px solid hsl(var(--accent-hsl) / 0.35);
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo svg {
  width: 26px;
  height: 26px;
}

/* Popup logo colors are theme tokens here, beside the accent they complement.
   The generated SVG only supplies the geometry and gradient-stop classes.
   Toolbar PNGs stay pink, since the browser cannot know the popup theme. */
.logo .sr-logo-stop-light {
  stop-color: var(--logo-light);
}

.logo .sr-logo-stop-middle {
  stop-color: var(--logo-middle);
}

.logo .sr-logo-stop-dark {
  stop-color: var(--logo-dark);
}

/* Dark bars on a near-white panel need less highlight than light bars on a
   dark one, or the top of the mark washes out. */
:root[data-theme="paper"] .logo .sr-sheen,
:root[data-theme="frost"] .logo .sr-sheen {
  opacity: 0.65;
}

h1 {
  font-size: 14px;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.theme-picker-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  color: color-mix(in srgb, var(--fg) 55%, transparent);
  transition: color 0.15s ease;
}

.theme-picker-btn:hover,
.theme-picker-btn.active {
  color: var(--fg);
}

.github-link {
  display: flex;
  align-items: center;
  justify-content: center;
  color: color-mix(in srgb, var(--fg) 55%, transparent);
  transition: color 0.15s ease;
}

.github-link:hover {
  color: var(--fg);
}

.theme-panel {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: 8px;
  z-index: 5;
  padding: 12px;
  background: var(--bg);
  border: 1px solid hsl(var(--accent-hsl) / 0.5);
  border-radius: var(--radius);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.35), 0 0 12px hsl(var(--accent-hsl) / 0.3);
}

.theme-panel-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--fg) 50%, transparent);
  margin-bottom: 8px;
}

.theme-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.theme-option {
  display: flex;
  flex-direction: column;
  padding: 0;
  background: none;
  border: 1.5px solid color-mix(in srgb, var(--fg) 20%, transparent);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.theme-option:hover {
  transform: translateY(-1px);
  border-color: hsl(var(--accent-hsl) / 0.7);
}

.theme-option.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px hsl(var(--accent-hsl) / 0.5);
}

.theme-option-preview {
  display: block;
  height: 34px;
  background: var(--card-bg);
  position: relative;
}

.theme-option-preview::after {
  content: "";
  position: absolute;
  right: 6px;
  bottom: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--card-accent);
  box-shadow: 0 0 4px var(--card-accent);
}

.theme-option-name {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2px;
  text-align: center;
  padding: 5px 0 6px;
  color: var(--fg);
  background: hsl(var(--accent-hsl) / 0.08);
}

.site-permission-panel {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 12px;
  padding: 12px;
  border: 1px solid hsl(var(--accent-hsl) / 0.5);
  border-radius: var(--radius);
  background: hsl(var(--accent-hsl) / 0.08);
}

.site-permission-title {
  color: var(--fg);
  font-size: 12px;
  font-weight: 700;
}

.site-permission-panel p,
.site-permission-status {
  color: color-mix(in srgb, var(--fg) 72%, transparent);
  font-size: 10px;
  line-height: 1.45;
}

.site-permission-panel .action-btn {
  align-self: stretch;
}

.site-permission-status:empty {
  display: none;
}

.header-power {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.power-status {
  display: inline-block;
  min-width: 3ch;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.3px;
  color: hsl(var(--accent-hsl) / 0.6);
}

.power-status.on {
  color: var(--accent);
  text-shadow: 0 0 6px hsl(var(--accent-hsl) / 0.6);
}

.blocked-banner {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 12px;
  padding: 8px 10px;
  background: color-mix(in srgb, var(--warning) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--warning) 50%, transparent);
  border-radius: var(--radius);
  color: var(--warning);
  font-size: 11px;
  line-height: 1.4;
}

.blocked-banner-icon {
  flex-shrink: 0;
  font-size: 13px;
}

.pitch-warning-banner {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: color-mix(in srgb, var(--warning) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--warning) 50%, transparent);
  border-radius: var(--radius);
  color: var(--warning);
  font-size: 11px;
  line-height: 1.4;
}

.pitch-warning-banner-icon {
  flex-shrink: 0;
  font-size: 13px;
}

.switch input:disabled + .switch-slider,
.preset-btn:disabled,
.custom-preset-btn:disabled,
.edit-preset-btn:disabled,
.delete-preset-btn:disabled,
.action-btn:disabled,
.tab-btn:disabled,
.effect-tab-btn:disabled,
.theme-picker-btn:disabled,
#preset-name-input:disabled,
input[type="range"]:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.current-preset-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  padding: 6px 10px;
  background: var(--bg);
  border: 1px solid hsl(var(--accent-hsl) / 0.5);
  border-radius: var(--radius);
}

.current-preset-label {
  font-size: 12px;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.2px;
}

.switch {
  position: relative;
  display: inline-block;
  width: 38px;
  height: 20px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.switch input:focus-visible + .switch-slider {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.switch-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg);
  border: 1.5px solid hsl(var(--accent-hsl) / 0.5);
  border-radius: 20px;
  transition: all 0.2s ease;
}

.switch-slider::before {
  position: absolute;
  content: "";
  height: 13px;
  width: 13px;
  left: 2.5px;
  bottom: 2px;
  background: hsl(var(--accent-hsl) / 0.6);
  border-radius: 50%;
  transition: all 0.2s ease;
}

.switch input:checked + .switch-slider {
  background: var(--bg);
  border-color: var(--accent);
}

.switch input:checked + .switch-slider::before {
  transform: translateX(18px);
  background: var(--accent);
  box-shadow: 0 0 6px hsl(var(--accent-hsl) / 0.8);
}

.booting .switch-slider,
.booting .switch-slider::before {
  transition: none;
}

.presets-tabs-section {
  margin-bottom: 14px;
}

.tabs,
.effect-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid hsl(var(--accent-hsl) / 0.25);
}

.tabs {
  margin-bottom: 12px;
}

.effect-tabs {
  margin-bottom: 2px;
}

.tab-btn,
.effect-tab-btn {
  flex: 1;
  background: none;
  border: none;
  color: color-mix(in srgb, var(--fg) 45%, transparent);
  font-family: inherit;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  padding: 0 0 8px;
  cursor: pointer;
  position: relative;
  transition: color 0.2s ease;
}

.effect-tab-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.tab-btn:hover,
.effect-tab-btn:hover {
  color: color-mix(in srgb, var(--fg) 80%, transparent);
}

.tab-btn.active,
.effect-tab-btn.active {
  color: var(--fg);
}

.tab-btn.active::after,
.effect-tab-btn.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: var(--accent);
  box-shadow: 0 0 4px hsl(var(--accent-hsl) / 0.7);
}

.effect-tab-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tab-badge {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 4px hsl(var(--accent-hsl) / 0.8);
}

.presets {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.preset-btn {
  padding: 8px 10px;
  background: var(--bg);
  border: 1.5px solid hsl(var(--accent-hsl) / 0.4);
  border-radius: var(--radius);
  color: var(--fg);
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.preset-btn:hover {
  background: hsl(var(--accent-hsl) / 0.12);
  border-color: var(--accent);
}

.preset-btn:active {
  background: hsl(var(--accent-hsl) / 0.25);
}

.save-preset-row {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
}

#preset-name-input {
  flex: 1;
  min-width: 0;
  padding: 8px 10px;
  background: var(--bg);
  border: 1.5px solid hsl(var(--accent-hsl) / 0.4);
  border-radius: var(--radius);
  color: var(--fg);
  font-family: inherit;
  font-size: 12px;
  outline: none;
  transition: border-color 0.15s ease;
}

#preset-name-input::placeholder {
  color: hsl(var(--accent-hsl) / 0.5);
}

#preset-name-input:focus {
  border-color: var(--accent);
}

.action-btn.small {
  padding: 8px 12px;
  font-size: 12px;
  white-space: nowrap;
}

.custom-presets-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 92px;
  overflow-y: auto;
  padding-right: 8px;
  margin-right: -8px;
  scrollbar-width: thin;
  scrollbar-color: hsl(var(--accent-hsl) / 0.35) transparent;
}

.custom-presets-list.is-editing {
  overflow-y: hidden;
}

.custom-presets-list.has-scrollbar {
  /* Keep Chromium's scrollbar clear of the preset action buttons. */
  margin-right: -14px;
}

.custom-presets-list.has-scrollbar .custom-preset-item {
  width: calc(100% - 6px);
  align-self: flex-start;
}

@supports (-moz-appearance: none) {
  .custom-presets-list.has-scrollbar {
    /* Firefox's taller control metrics need a smaller overflow cap. */
    max-height: 78px;
    margin-right: -8px;
    padding-right: 7px;
  }

  .custom-presets-list.has-scrollbar .custom-preset-item {
    width: auto;
    align-self: stretch;
  }
}

.custom-presets-list::-webkit-scrollbar {
  width: 5px;
}

.custom-presets-list::-webkit-scrollbar-track {
  background: transparent;
}

.custom-presets-list::-webkit-scrollbar-thumb {
  background: hsl(var(--accent-hsl) / 0.35);
  border-radius: 3px;
}

.custom-presets-list::-webkit-scrollbar-thumb:hover {
  background: hsl(var(--accent-hsl) / 0.6);
}

.custom-presets-empty {
  text-align: center;
  font-size: 12px;
  color: hsl(var(--accent-hsl) / 0.55);
  padding: 4px 0;
}

.custom-preset-item {
  display: flex;
  align-items: stretch;
  gap: 6px;
}

.custom-preset-btn {
  flex: 1;
  min-width: 0;
  text-align: left;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.custom-preset-name-input,
.custom-preset-name-input:hover {
  border-color: var(--accent);
  background: hsl(var(--accent-hsl) / 0.2);
  outline: none;
}

.edit-preset-btn,
.delete-preset-btn {
  width: 28px;
  flex-shrink: 0;
  background: var(--bg);
  border: 1.5px solid hsl(var(--accent-hsl) / 0.35);
  border-radius: var(--radius);
  color: color-mix(in srgb, var(--fg) 70%, transparent);
  line-height: 1;
  cursor: pointer;
  transition: all 0.15s ease;
}

.edit-preset-btn {
  font-size: 12px;
}

.delete-preset-btn {
  font-size: 14px;
}

.edit-preset-btn:hover {
  background: hsl(var(--accent-hsl) / 0.2);
  border-color: var(--accent);
  color: var(--fg);
}

.delete-preset-btn:hover {
  background: rgba(255, 60, 60, 0.25);
  border-color: rgba(255, 60, 60, 0.6);
  color: var(--fg);
}

/* These equal-specificity overrides must remain after the base edit/delete rules. */
.confirm-preset-btn {
  background: hsl(var(--accent-hsl) / 0.3);
  border-color: var(--accent);
  color: var(--fg);
}

.confirm-preset-btn:hover {
  background: hsl(var(--accent-hsl) / 0.5);
}

.revert-preset-btn {
  font-size: 15px;
}

.revert-preset-btn:hover {
  background: color-mix(in srgb, var(--fg) 12%, transparent);
  border-color: color-mix(in srgb, var(--fg) 50%, transparent);
  color: var(--fg);
}

.controls {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 4px;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.control-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.control-row .control-header {
  gap: 6px;
}

.control-row .control-icon {
  width: 16px;
  font-size: 13px;
}

.control-row .control-header label {
  font-size: 11px;
}

.control-row .value-inline {
  font-size: 10px;
}

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

.control-icon {
  font-size: 14px;
  width: 18px;
  text-align: center;
  color: var(--accent);
}

.control-icon-lg {
  font-size: 19px;
}

.control-header label {
  font-size: 13px;
  font-weight: 600;
  color: var(--fg);
  flex: 1;
}

.control-header .switch {
  /* The generic label rule above must not stretch this fixed-width switch. */
  flex: none;
}

.value-inline {
  font-weight: 400;
  color: var(--accent);
  font-size: 12px;
}

input[type="range"] {
  width: 100%;
  height: 3px;
  background: color-mix(in srgb, var(--accent) 25%, var(--bg));
  border-radius: 0;
  outline: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  cursor: pointer;
  position: relative;
}

input[type="range"]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 5px;
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

input[type="range"]::-webkit-slider-track {
  width: 100%;
  height: 3px;
  background: color-mix(in srgb, var(--accent) 25%, var(--bg));
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  background: var(--accent);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 6px hsl(var(--accent-hsl) / 0.7);
  transition: all 0.15s ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  box-shadow: 0 0 10px hsl(var(--accent-hsl) / 0.9);
}

input[type="range"]::-moz-range-track {
  width: 100%;
  height: 3px;
  background: color-mix(in srgb, var(--accent) 25%, var(--bg));
}

input[type="range"]::-moz-range-progress {
  height: 3px;
  background: color-mix(in srgb, var(--accent) 25%, var(--bg));
}

input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  background: var(--accent);
  border-radius: 50%;
  border: none;
  cursor: pointer;
  box-shadow: 0 0 6px hsl(var(--accent-hsl) / 0.7);
  transition: all 0.15s ease;
}

input[type="range"]::-moz-range-thumb:hover {
  transform: scale(1.15);
  box-shadow: 0 0 10px hsl(var(--accent-hsl) / 0.9);
}

.eq-group {
  gap: 4px;
}

.eq-labels {
  display: flex;
}

.eq-label-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.eq-label-name {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--fg) 55%, transparent);
}

.eq-label-value {
  font-size: 14px;
  font-weight: 700;
  color: var(--fg);
}

.eq-curve {
  /* Keep the SVG viewBox ratio aligned with this size so handles stay circular. */
  width: 100%;
  height: 85px;
  touch-action: none;
  overflow: visible;
}

.eq-zero-line {
  stroke: color-mix(in srgb, var(--fg) 35%, transparent);
  stroke-width: 1.25;
  stroke-dasharray: 4 3;
}

.eq-curve-path {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.eq-handle {
  fill: var(--accent);
  stroke: var(--bg);
  stroke-width: 2;
  cursor: grab;
  filter: drop-shadow(0 0 4px hsl(var(--accent-hsl) / 0.7));
  transition: r 0.1s ease;
}

.eq-handle:hover,
.eq-handle:focus {
  r: 9.5;
}

.eq-handle:active {
  cursor: grabbing;
}

.eq-handle:focus {
  outline: none;
}

.eq-handle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.eq-curve.disabled .eq-handle {
  cursor: not-allowed;
  opacity: 0.4;
}

footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding-top: 10px;
  border-top: 1px solid hsl(var(--accent-hsl) / 0.25);
}

footer.no-divider {
  border-top-color: transparent;
}

.action-btn {
  padding: 9px 22px;
  background: var(--bg);
  border: 1.5px solid hsl(var(--accent-hsl) / 0.5);
  border-radius: var(--radius);
  color: var(--fg);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.action-btn:hover {
  background: hsl(var(--accent-hsl) / 0.15);
  border-color: var(--accent);
}

.action-btn:active {
  background: hsl(var(--accent-hsl) / 0.3);
}