/* ==========================================================================
   Tool Tabs Navigation (Shared Between Converter & Compressor)
   ========================================================================== */

.tool-tabs-container {
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
  margin: 1.75rem 0 2rem;
  border-bottom: 2px solid var(--line);
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  -ms-overflow-style: none;
  -webkit-overflow-scrolling: touch;
}

.tool-tabs-container::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
}

.tool-tab {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1.4rem;
  border: 1px solid var(--line);
  border-bottom: none;
  border-radius: 8px 8px 0 0;
  background: var(--bg-soft);
  color: var(--muted);
  text-decoration: none;
  font-family: var(--sans);
  position: relative;
  margin-bottom: -2px;
  transition: all 0.2s ease;
  white-space: nowrap;
  min-height: 48px;
}

.tool-tab:hover {
  color: var(--text);
  background: color-mix(in srgb, var(--panel) 70%, var(--bg-soft));
}

.tool-tab.active,
.tool-tab[aria-current="page"] {
  background: var(--panel);
  color: var(--text);
  border-color: var(--line);
  border-bottom: 2px solid var(--panel);
  border-top: 3px solid var(--accent);
  padding-top: calc(0.85rem - 2px);
  font-weight: 600;
}

.tool-tab-icon {
  font-size: 1.25rem;
  line-height: 1;
}

.tool-tab-titles {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.tool-tab-title {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.tool-tab-desc {
  font-size: 0.72rem;
  color: var(--muted);
  font-family: var(--mono);
}

.tool-tab.active .tool-tab-desc,
.tool-tab[aria-current="page"] .tool-tab-desc {
  color: color-mix(in srgb, var(--text) 70%, var(--muted));
}

/* ==========================================================================
   Image Compressor Shell & Form Layout
   ========================================================================== */

.compressor-shell {
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
}

.compressor-form {
  margin-top: 1.5rem;
}

/* Upload Dropzone */
.compressor-dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  padding: 1.75rem 1rem;
  border: 2px dashed var(--line);
  border-radius: 8px;
  background: var(--panel);
  text-align: center;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.1s ease;
}

.compressor-dropzone:active {
  transform: scale(0.99);
  background: var(--bg-soft);
  border-color: var(--accent);
}

.compressor-dropzone.dragover,
.compressor-dropzone:focus-within {
  border-color: var(--accent);
  background: var(--bg-soft);
}

.compressor-dropzone-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin-bottom: 0.75rem;
  border-radius: 50%;
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  color: var(--accent);
  font-size: 1.6rem;
}

.compressor-dropzone strong {
  display: block;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

.compressor-dropzone span {
  display: block;
  margin-top: 0.4rem;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.4;
}

.compressor-file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Selected badge */
.compressor-selected-badge {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  font: 0.82rem var(--mono);
}

.compressor-selected-badge span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--accent);
}

.compressor-selected-badge small {
  color: var(--muted);
  font-size: 0.75rem;
  white-space: nowrap;
}

/* ==========================================================================
   Compression Mode Cards (Lossy vs Lossless)
   ========================================================================== */

.mode-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 0.75rem;
}

@media (max-width: 640px) {
  .mode-grid {
    grid-template-columns: 1fr;
  }
}

.mode-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 1.25rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  cursor: pointer;
  touch-action: manipulation;
  transition: all 0.2s ease;
  user-select: none;
}

.mode-card:hover {
  border-color: color-mix(in srgb, var(--accent) 50%, var(--line));
  background: var(--bg-soft);
}

.mode-card.active {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 6%, var(--panel));
  box-shadow: 0 0 0 1px var(--accent);
}

.mode-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.mode-radio-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
}

.mode-radio-label input[type="radio"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  margin: 0;
}

.mode-tag {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font: 700 0.65rem var(--mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  color: var(--accent);
}

.mode-tag.subtle {
  background: var(--bg-soft);
  color: var(--muted);
  border: 1px solid var(--line);
}

.mode-desc {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.45;
}

/* Quality Slider Container */
.compressor-quality-wrap {
  margin-top: 1.25rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  transition: opacity 0.2s ease;
}

.compressor-quality-wrap[hidden] {
  display: none !important;
}

.compressor-quality-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.65rem;
  color: var(--text);
  font-size: 0.85rem;
  font-weight: 600;
}

.compressor-quality-header output {
  font: 0.85rem var(--mono);
  color: var(--accent);
}

.compressor-quality-wrap input[type="range"] {
  width: 100%;
  height: 36px;
  accent-color: var(--accent);
  cursor: pointer;
  touch-action: manipulation;
}

/* ==========================================================================
   Progress & Action Button
   ========================================================================== */

.compressor-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.4rem;
  margin: 1.75rem 0 1rem;
  padding: 0;
  list-style: none;
}

.compressor-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.65rem 0.25rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  text-align: center;
  font-size: 0.72rem;
  color: var(--muted);
  transition: all 0.2s ease;
}

.compressor-step-num {
  font: 0.75rem var(--mono);
  margin-bottom: 0.25rem;
}

.compressor-step.active {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, var(--panel));
  color: var(--accent);
  font-weight: 700;
}

.compressor-step.completed {
  border-color: #22c55e;
  color: #22c55e;
}

.compressor-progress-bar-wrap {
  width: 100%;
  height: 6px;
  margin-bottom: 1rem;
  border-radius: 3px;
  background: var(--line);
  overflow: hidden;
}

.compressor-progress-bar {
  width: 0%;
  height: 100%;
  background: var(--accent);
  transition: width 0.3s ease;
}

.compressor-status-msg {
  display: block;
  min-height: 1.25rem;
  margin-top: 0.5rem;
  text-align: center;
  color: var(--muted);
  font: 0.8rem var(--mono);
}

.compressor-turnstile-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 1.25rem 0 0.5rem;
  min-height: 65px;
  width: 100%;
  overflow-x: auto;
}

.compressor-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  min-height: 52px;
  margin-top: 1.5rem;
  padding: 0.95rem 1.5rem;
  border: none;
  border-radius: 6px;
  background: var(--accent);
  color: #000;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: opacity 0.15s ease, transform 0.1s ease;
}

.compressor-btn:active:not(:disabled) {
  transform: scale(0.98);
}

.compressor-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ==========================================================================
   Results & Preview Comparison
   ========================================================================== */

.compressor-results {
  margin-top: 2rem;
  padding: 1.5rem 1.25rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.compressor-results[hidden] {
  display: none !important;
}

.compressor-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.compressor-stat-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0.85rem 0.5rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg-soft);
  text-align: center;
}

.compressor-stat-card span {
  font: 0.65rem var(--mono);
  color: var(--muted);
  text-transform: uppercase;
}

.compressor-stat-card strong {
  margin-top: 0.25rem;
  font-size: clamp(1.1rem, 2vw, 1.45rem);
  letter-spacing: -0.02em;
}

.compressor-stat-card.savings strong {
  color: #22c55e;
}

.compressor-stat-card small {
  margin-top: 0.15rem;
  font-size: 0.72rem;
  color: var(--muted);
}

/* Comparison Previews */
.preview-comparison-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

@media (max-width: 600px) {
  .preview-comparison-grid {
    grid-template-columns: 1fr;
  }
}

.preview-pane {
  display: flex;
  flex-direction: column;
}

.preview-pane-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.4rem;
  font: 0.75rem var(--mono);
  color: var(--muted);
}

.preview-pane-header strong {
  color: var(--text);
  font-family: var(--sans);
  font-size: 0.85rem;
}

.preview-pane-box {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 220px;
  max-height: 340px;
  padding: 0.5rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #000;
  overflow: hidden;
}

.preview-pane-box img {
  max-width: 100%;
  max-height: 320px;
  object-fit: contain;
}

.compressor-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.compressor-btn-download {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.85rem 1.25rem;
  border: none;
  border-radius: 6px;
  background: var(--accent);
  color: #000;
  font-weight: 700;
  text-align: center;
  cursor: pointer;
  text-decoration: none;
  touch-action: manipulation;
  transition: opacity 0.15s ease;
}

.compressor-btn-download:hover {
  opacity: 0.92;
}

.compressor-btn-share {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.85rem 1.25rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg-soft);
  color: var(--text);
  font-weight: 600;
  cursor: pointer;
  touch-action: manipulation;
  transition: all 0.15s ease;
}

.compressor-btn-share:hover {
  background: var(--panel);
  border-color: var(--accent);
}

.compressor-btn-reset {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: none;
  background: none;
  color: var(--muted);
  font: 0.8rem var(--mono);
  cursor: pointer;
  touch-action: manipulation;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.compressor-btn-reset:hover {
  color: var(--text);
}