:root {
  --bg: #0f1115;
  --bg-elev: #161a22;
  --bg-card: #1b2029;
  --border: #2a313d;
  --text: #e8ebf0;
  --text-dim: #9aa4b2;
  --accent: #6c8cff;
  --accent-strong: #4f6ef0;
  --danger: #ff5f6d;
  --ok: #35d07f;
  --radius: 12px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

:root[data-theme="light"] {
  --bg: #eef1f7;
  --bg-elev: #ffffff;
  --bg-card: #ffffff;
  --border: #d8dee9;
  --text: #1b2434;
  --text-dim: #5d6a80;
  --accent: #4f6ef0;
  --accent-strong: #3d5ad6;
  --danger: #dd4150;
  --ok: #17a05c;
  --shadow: 0 10px 30px rgba(30, 40, 70, 0.12);
}

:root[data-theme="light"] body {
  background:
    radial-gradient(900px 400px at 20% -10%, rgba(79, 110, 240, 0.1), transparent 60%),
    radial-gradient(700px 350px at 90% 0%, rgba(23, 160, 92, 0.08), transparent 55%),
    var(--bg);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background:
    radial-gradient(900px 400px at 20% -10%, rgba(108, 140, 255, 0.12), transparent 60%),
    radial-gradient(700px 350px at 90% 0%, rgba(53, 208, 127, 0.08), transparent 55%),
    var(--bg);
  color: var(--text);
  line-height: 1.5;
}

/* ---------- Top bar ---------- */

.topbar {
  padding: 52px 24px 16px;
  text-align: center;
  position: relative;
}

.theme-toggle {
  position: absolute;
  top: 14px;
  right: 16px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.15s ease, background 0.15s ease;
  z-index: 50;
}

.lang-select {
  position: absolute;
  top: 16px;
  right: 66px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 8px 10px;
  font-size: 0.82rem;
  cursor: pointer;
  max-width: 150px;
}

.lang-select:focus-visible {
  border-color: var(--accent);
  outline: none;
}

@media (max-width: 640px) {
  .lang-select {
    top: 12px;
    right: 58px;
    max-width: 120px;
    padding: 6px 8px;
    font-size: 0.78rem;
  }
}

.theme-toggle:hover {
  border-color: var(--accent);
  background: var(--bg-elev);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

:root[data-theme="light"] .theme-toggle .icon-sun {
  display: none;
}

:root[data-theme="dark"] .theme-toggle .icon-moon {
  display: none;
}

@media (max-width: 640px) {
  .theme-toggle {
    top: 10px;
    right: 10px;
  }
}

.logo {
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
}

.logo-icon {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
  filter: drop-shadow(0 6px 18px rgba(108, 140, 255, 0.35));
}

.logo-word {
  font-size: 1.9rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(90deg, #6c8cff, #35d07f);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.version-badge {
  align-self: center;
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--text-dim);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 9px;
  white-space: nowrap;
}

.tagline {
  margin: 4px 0 0;
  color: var(--text-dim);
  font-size: 0.85rem;
}

.main-headline {
  font-size: 1.6rem;
  font-weight: 800;
  margin: 8px 0;
  color: var(--text);
  text-align: center;
  line-height: 1.2;
}

/* ---------- Layout ---------- */

.container {
  width: min(960px, 100% - 32px);
  margin: 0 auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding-bottom: 32px;
}

/* ---------- Drop zone ---------- */

.drop-zone {
  position: relative;
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  background: var(--bg-elev);
  padding: 44px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.15s ease;
  outline: none;
}

.drop-zone:hover,
.drop-zone:focus-visible {
  border-color: var(--accent);
}

.drop-zone.dragover {
  border-color: var(--accent);
  background: rgba(108, 140, 255, 0.08);
  transform: scale(1.01);
}

.drop-icon {
  color: var(--text-dim);
  margin-bottom: 10px;
}

.drop-zone.dragover .drop-icon {
  color: var(--accent);
}

.drop-title {
  margin: 0 0 4px;
  font-size: 1.1rem;
}

.drop-sub {
  margin: 0 0 18px;
  color: var(--text-dim);
  font-size: 0.85rem;
}

/* ---------- Buttons ---------- */

.btn {
  border: none;
  border-radius: 8px;
  padding: 9px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, opacity 0.15s ease, transform 0.1s ease;
}

.btn:active {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-strong);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--bg-card);
}

/* ---------- Settings ---------- */

.settings {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

:root[data-theme="light"] .settings {
  background: var(--bg);
  border: 1px solid #d8dee9;
}

.setting-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
}

:root[data-theme="light"] .setting-group {
  background: var(--bg-elev);
  border: 1px solid #d8dee9;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.group-title {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--accent);
  padding-bottom: 2px;
  border-bottom: 1px solid var(--border);
}

.group-body {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  align-items: flex-start;
}

.group-body .actions {
  margin-left: 0;
  flex-wrap: wrap;
}

.settings .notice {
  grid-column: 1 / -1;
}

.settings .actions-group {
  grid-column: 1 / -1;
}

.settings .actions-group .actions {
  width: 100%;
  margin-left: 0;
  justify-content: space-between;
  gap: 10px;
}

.settings .actions-group .actions .btn {
  padding: 10px 18px;
}

.setting {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.setting label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}

.setting select,
.setting input[type="number"] {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 8px 10px;
  font-size: 0.9rem;
  min-width: 130px;
}

/* Keep the up/down arrows on number inputs always visible (Chrome/Edge). */
.setting input[type="number"]::-webkit-inner-spin-button,
.setting input[type="number"]::-webkit-outer-spin-button {
  opacity: 1;
  height: 24px;
  margin-left: 4px;
}

.setting select:focus,
.setting input:focus-visible {
  border-color: var(--accent);
  outline: none;
}

.quality-setting {
  min-width: 200px;
}

.quality-setting label {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

#qualityRange {
  width: 200px;
}

#qualityValue,
.color-slider output {
  display: inline-block;
  min-width: 30px;
  text-align: center;
  font-size: 0.78rem;
  font-weight: 700;
  color: #fff;
  background: rgba(108, 140, 255, 0.18);
  border: 1px solid rgba(108, 140, 255, 0.4);
  border-radius: 6px;
  padding: 1px 7px;
  font-variant-numeric: tabular-nums;
}

/* ---------- Custom range sliders ---------- */

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  height: 22px;
  background: transparent;
  cursor: pointer;
  --val: 50%;
}

input[type="range"]:focus {
  outline: none;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent) var(--val), var(--border) var(--val));
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.25);
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  margin-top: -6px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--accent);
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.5), 0 0 0 3px rgba(108, 140, 255, 0.25);
  transition: box-shadow 0.15s ease;
}

input[type="range"]:hover::-webkit-slider-thumb {
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.5), 0 0 0 5px rgba(108, 140, 255, 0.35);
}

input[type="range"]::-moz-range-track {
  height: 6px;
  border-radius: 999px;
  background: var(--border);
}

input[type="range"]::-moz-range-progress {
  height: 6px;
  border-radius: 999px;
  background: var(--accent);
}

input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--accent);
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.5), 0 0 0 3px rgba(108, 140, 255, 0.25);
}

.resize-inputs {
  flex-direction: row;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 10px;
}

.resize-inputs input[type="number"] {
  min-width: 76px;
  flex: 1 1 76px;
}

.resize-inputs select {
  min-width: 58px;
  padding: 8px 6px;
}

.bg-setting .bg-picker {
  display: flex;
  align-items: center;
  gap: 8px;
}

.bg-preset {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  border: 2px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.15s ease, transform 0.1s ease;
}

.bg-preset[data-bg="#ffffff"] {
  background: #fff;
  color: #bbb;
}

.bg-preset[data-bg="#000000"] {
  background: #000;
  color: #555;
}

.bg-preset[data-bg="checker"] {
  background:
    linear-gradient(45deg, #666 25%, transparent 25%),
    linear-gradient(-45deg, #666 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #666 75%),
    linear-gradient(-45deg, transparent 75%, #666 75%);
  background-size: 10px 10px;
  background-position: 0 0, 0 5px, 5px -5px, -5px 0;
  background-color: #fff;
  color: transparent;
}

.bg-preset:hover {
  border-color: var(--accent);
}

.bg-preset.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(108, 140, 255, 0.25);
}

.bg-picker input[type="color"] {
  width: 34px;
  height: 28px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: none;
  padding: 0;
  cursor: pointer;
}

.transparent-setting {
  gap: 4px;
}

.transparent-setting .aspect {
  padding-bottom: 0;
}

.transparent-row {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.transparent-row label {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-dim);
}

.transparent-row input[type="color"] {
  width: 30px;
  height: 24px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: none;
  padding: 0;
  cursor: pointer;
}

.transparent-row input[type="range"] {
  width: 110px;
}

.transparent-row output {
  color: var(--text);
  font-weight: 700;
  min-width: 22px;
  font-variant-numeric: tabular-nums;
}

.rename-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.rename-controls input[type="text"] {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 8px 10px;
  font-size: 0.9rem;
  min-width: 120px;
  flex: 1 1 120px;
}

.rename-controls input[type="text"]:focus-visible {
  border-color: var(--accent);
  outline: none;
}

.target-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.target-controls input[type="number"] {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 8px 10px;
  font-size: 0.9rem;
  width: 90px;
}

.target-controls input[type="number"]:focus-visible {
  border-color: var(--accent);
  outline: none;
}

.target-controls .btn {
  padding: 8px 12px;
  font-size: 0.8rem;
  white-space: nowrap;
}

.summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  background: rgba(53, 208, 127, 0.08);
  border: 1px solid rgba(53, 208, 127, 0.3);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 0.85rem;
}

.summary .summary-stats {
  color: var(--text);
}

.summary .summary-savings {
  font-weight: 700;
  color: var(--ok);
}

.summary .summary-download {
  margin-left: auto;
}

.aspect {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem !important;
  font-weight: 500 !important;
  text-transform: none !important;
  letter-spacing: 0 !important;
  color: var(--text) !important;
  padding-bottom: 9px;
  overflow-wrap: anywhere;
}

.aspect input {
  accent-color: var(--accent);
}

.actions {
  flex-direction: row;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

/* ---------- Toggle switch ---------- */

.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

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

.switch .slider {
  position: absolute;
  inset: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s ease;
}

.switch .slider::before {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  left: 2px;
  top: 2px;
  background: var(--text-dim);
  border-radius: 50%;
  transition: transform 0.2s ease, background 0.2s ease;
}

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

.switch input:checked + .slider::before {
  transform: translateX(20px);
  background: #fff;
}

/* ---------- Results / cards ---------- */

.results {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.empty-hint {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.9rem;
  margin: 12px 0;
}

.file-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}

.file-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  cursor: grab;
}

.file-card:active {
  cursor: grabbing;
}

.file-card.dragging {
  opacity: 0.45;
  transform: scale(0.98);
}

.file-card.drop-here {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(108, 140, 255, 0.25);
}

.file-card.flash {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent), 0 0 26px rgba(108, 140, 255, 0.4);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.file-card.error {
  border-color: rgba(255, 95, 109, 0.4);
}

.file-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.file-name {
  font-size: 0.82rem;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-remove {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 6px;
  flex-shrink: 0;
}

.file-remove:hover {
  color: var(--danger);
  background: rgba(255, 95, 109, 0.1);
}

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

.file-thumb {
  width: 112px;
  height: 112px;
  border-radius: 10px;
  object-fit: contain;
  background:
    linear-gradient(45deg, var(--bg-elev) 25%, transparent 25%),
    linear-gradient(-45deg, var(--bg-elev) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, var(--bg-elev) 75%),
    linear-gradient(-45deg, transparent 75%, var(--bg-elev) 75%);
  background-size: 14px 14px;
  background-position: 0 0, 0 7px, 7px -7px, -7px 0;
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  flex-shrink: 0;
}

.file-info {
  flex: 1;
  min-width: 0;
  font-size: 0.78rem;
  color: var(--text-dim);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.file-info .dims {
  color: var(--text);
}

.file-info .note {
  color: #ffd166;
}

.notice {
  flex-basis: 100%;
  margin: 0;
  padding: 10px 12px;
  font-size: 0.82rem;
  color: #ffd166;
  background: rgba(255, 209, 102, 0.08);
  border: 1px solid rgba(255, 209, 102, 0.3);
  border-radius: 8px;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 600;
}

.status .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-dim);
  flex-shrink: 0;
}

.status.ready .dot {
  background: var(--text-dim);
}

.status.busy .dot {
  background: var(--accent);
  animation: pulse 0.9s ease-in-out infinite;
}

.status.done .dot {
  background: var(--ok);
}

.status.failed .dot {
  background: var(--danger);
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.3;
  }
}

.file-foot {
  display: flex;
  gap: 8px;
  align-items: center;
}

.file-transforms {
  display: flex;
  align-items: center;
  gap: 6px;
}

.t-btn {
  width: 28px;
  height: 28px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--bg-elev);
  color: var(--text);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.15s ease, background 0.15s ease;
}

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

.t-btn[hidden] {
  display: none;
}

.transform-state {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent);
  min-width: 34px;
}

.t-btn.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(108, 140, 255, 0.25);
}

.crop-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.crop-tools[hidden] {
  display: none;
}

.crop-tools input[type="number"] {
  width: 52px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 4px 6px;
  font-size: 0.78rem;
}

.crop-tools .crop-clear {
  border: none;
  background: none;
  color: var(--danger);
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  padding: 4px 6px;
}

.watermark-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.watermark-controls[hidden] {
  display: none;
}

.watermark-controls input[type="text"] {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 7px 10px;
  font-size: 0.85rem;
  min-width: 140px;
}

.watermark-controls select {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 7px 8px;
  font-size: 0.8rem;
}

.watermark-controls input[type="range"] {
  width: 90px;
}

.preset-buttons {
  display: flex;
  gap: 6px;
}

.preset-btn {
  padding: 6px 12px;
  font-size: 0.78rem;
}

.color-panel {
  flex-basis: 100%;
  gap: 0;
}

.color-panel summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px;
  border-radius: 8px;
  border: 1px solid rgba(108, 140, 255, 0.45);
  background: rgba(108, 140, 255, 0.12);
  user-select: none;
  transition: background 0.2s ease, box-shadow 0.2s ease;
}

.color-panel summary::-webkit-details-marker {
  display: none;
}

.color-panel summary:hover {
  background: rgba(108, 140, 255, 0.22);
  box-shadow: 0 0 12px rgba(108, 140, 255, 0.35);
}

.color-title {
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: linear-gradient(90deg, #6c8cff, #35d07f);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.color-panel summary::after {
  content: '\25BE';
  margin-left: auto;
  font-size: 0.78rem;
  color: var(--accent);
  -webkit-text-fill-color: var(--accent);
  transition: transform 0.2s ease;
}

.color-panel[open] summary::after {
  transform: rotate(180deg);
}

.color-panel summary .color-hint {
  margin-left: 2px;
  -webkit-text-fill-color: var(--text-dim);
  color: var(--text-dim);
}

.color-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 18px;
  padding-top: 10px;
}

.color-slider {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.color-slider .row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.color-slider input {
  width: 200px;
}

.fx-brightness {
  --fx-bg: linear-gradient(90deg, #000000, #ffffff);
}

.fx-contrast {
  --fx-bg: linear-gradient(90deg, #8b95a3, #14161c);
}

.fx-saturation {
  --fx-bg: linear-gradient(90deg, #9aa4b2, #ff4d6d);
}

.color-slider input::-webkit-slider-runnable-track {
  background:
    linear-gradient(#ffffff, #ffffff) 50% 0 / 2px 6px no-repeat,
    var(--fx-bg);
}

.color-slider input::-moz-range-track {
  background: var(--fx-bg);
}

.color-slider input::-moz-range-progress {
  background: transparent;
}

.color-hint {
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0;
  color: var(--text-dim);
}

.setting-hint {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-dim);
  text-transform: none;
  letter-spacing: 0;
  margin-top: -2px;
}

.color-checks {
  display: flex;
  gap: 14px;
  padding-bottom: 8px;
}

.file-foot .btn {
  padding: 6px 12px;
  font-size: 0.8rem;
}

.file-foot .download-link {
  text-decoration: none;
  color: #fff;
  background: var(--accent);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 600;
}

.file-foot .download-link:hover {
  background: var(--accent-strong);
}

.file-foot .save-as {
  flex: 1;
  min-width: 0;
}

.file-foot .save-as select {
  width: 100%;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 6px 8px;
  font-size: 0.78rem;
}

/* ---------- Footer ---------- */

.footer {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.78rem;
  padding: 18px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.contact-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.82rem;
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.contact-link:hover {
  border-color: var(--accent);
  background: rgba(108, 140, 255, 0.1);
}

.disclaimer-container {
  text-align: center;
  padding: 12px 24px 40px;
}

.disclaimer {
  font-size: 0.72rem;
  color: var(--text-dim);
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.5;
}

@media (max-width: 640px) {
  .actions {
    width: 100%;
    justify-content: flex-start;
    margin-left: 0;
    flex-wrap: wrap;
  }
}

/* ---------- Problem log & reporting ---------- */

.issue-fab {
  position: fixed;
  left: 18px;
  bottom: 18px;
  z-index: 60;
  min-width: 44px;
  height: 44px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 95, 109, 0.5);
  background: rgba(255, 95, 109, 0.15);
  color: var(--danger);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: background 0.15s ease, transform 0.1s ease;
}

.issue-fab:hover {
  background: rgba(255, 95, 109, 0.3);
}

.issue-fab[hidden] {
  display: none;
}

.issue-panel {
  position: fixed;
  left: 18px;
  bottom: 72px;
  z-index: 60;
  width: min(360px, calc(100vw - 36px));
  max-height: 50vh;
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.issue-panel[hidden] {
  display: none;
}

.issue-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
}

.issue-close {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  padding: 0 4px;
}

.issue-close:hover {
  color: var(--danger);
}

.issue-body {
  overflow-y: auto;
  padding: 8px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.issue-item {
  display: flex;
  gap: 8px;
  font-size: 0.8rem;
  align-items: baseline;
}

.issue-time {
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}

.issue-msg {
  color: var(--text);
  overflow-wrap: anywhere;
}

.issue-foot {
  display: flex;
  gap: 8px;
  padding: 10px 14px;
  border-top: 1px solid var(--border);
  background: var(--bg-elev);
}

.issue-foot .btn {
  font-size: 0.8rem;
  padding: 6px 12px;
}

.issue-toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%) translateY(10px);
  z-index: 70;
  background: var(--bg-card);
  border: 1px solid var(--accent);
  color: var(--text);
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 0.85rem;
  opacity: 0;
  transition: opacity 0.25s ease, transform 0.25s ease;
  pointer-events: none;
  box-shadow: var(--shadow);
}

.issue-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---------- Consent banner ---------- */

.consent-banner {
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  z-index: 80;
  width: min(560px, calc(100vw - 28px));
  background: var(--bg-card);
  border: 1px solid var(--accent);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.consent-banner[hidden] {
  display: none;
}

.consent-text {
  margin: 0;
  font-size: 0.82rem;
  color: var(--text);
  line-height: 1.45;
}

.consent-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.consent-actions .btn {
  font-size: 0.82rem;
  padding: 7px 14px;
  text-decoration: none;
}