/* ==========================================================================
   Image Format Converter Online - Universal Modern Dark Theme
   PicDriver Design System
   ========================================================================== */

:root {
  --converter-accent: #10b981;
  --converter-accent-light: #34d399;
  --converter-cyan: #06b6d4;
  --converter-indigo: #6366f1;
}

/* Tool Hero */
.tool-hero {
  text-align: center;
  padding: 48px 24px 32px;
  background: radial-gradient(circle at 50% 20%, rgba(16, 185, 129, 0.12) 0%, transparent 70%);
}

.tool-hero h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #f8fafc 30%, #34d399 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 12px;
}

.tool-hero p {
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto;
  font-size: 1.05rem;
  line-height: 1.6;
}

/* Workspace Layout */
.tool-workspace {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 24px 60px;
}

.workspace-card {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 24px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.5);
}

@media (max-width: 1024px) {
  .workspace-card {
    grid-template-columns: 1fr;
  }
}

/* Left Column: Queue & Preview */
.queue-col {
  display: flex;
  flex-direction: column;
  background: #020617;
  position: relative;
  min-height: 600px;
  border-right: 1px solid var(--border-color);
  overflow: hidden;
}

@media (max-width: 1024px) {
  .queue-col {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }
}

/* Floating Stats Toolbar */
.stats-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: 20;
}

.stats-group {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.84rem;
}

.stat-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
}

.stat-val {
  font-family: var(--font-mono);
  font-weight: 700;
  color: #fff;
}

.savings-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 700;
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(52, 211, 153, 0.3);
}

.tool-btn {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.tool-btn:hover {
  background: var(--bg-surface-hover);
  border-color: var(--converter-accent-light);
  color: #fff;
}

/* Queue List Container */
.queue-scroll-container {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.queue-scroll-container::-webkit-scrollbar {
  width: 6px;
}
.queue-scroll-container::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

/* Queue Item Card */
.queue-card {
  display: grid;
  grid-template-columns: 72px 1fr auto;
  gap: 16px;
  align-items: center;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 12px 16px;
  transition: all 0.2s ease;
  position: relative;
}

.queue-card:hover {
  border-color: rgba(52, 211, 153, 0.4);
  background: rgba(30, 41, 59, 0.7);
}

.queue-thumb {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-md);
  object-fit: cover;
  background: #090d16;
  border: 1px solid var(--border-color);
}

.queue-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.queue-filename {
  font-size: 0.9rem;
  font-weight: 600;
  color: #f8fafc;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.queue-meta-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.format-tag {
  display: inline-flex;
  align-items: center;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.7rem;
  font-family: var(--font-mono);
  font-weight: 700;
  text-transform: uppercase;
  background: rgba(100, 116, 139, 0.25);
  color: #94a3b8;
}

.format-tag.target {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border: 1px solid rgba(52, 211, 153, 0.4);
}

.queue-status-text {
  font-size: 0.75rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 4px;
}
.queue-status-text.ready { color: #34d399; }
.queue-status-text.converting { color: #38bdf8; }
.queue-status-text.error { color: #f87171; }

.queue-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.select-item-format {
  padding: 6px 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: #f8fafc;
  font-size: 0.8rem;
  font-weight: 600;
  outline: none;
  cursor: pointer;
}

.select-item-format:focus {
  border-color: var(--converter-accent-light);
}

.btn-item-action {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-item-action:hover {
  background: var(--converter-accent);
  color: #fff;
  border-color: var(--converter-accent);
}

.btn-item-delete:hover {
  background: #ef4444 !important;
  border-color: #ef4444 !important;
  color: #fff !important;
}

/* Right Column: Global Settings & Actions */
.controls-col {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-height: 900px;
  overflow-y: auto;
  background: var(--bg-surface);
}

.controls-col::-webkit-scrollbar {
  width: 6px;
}
.controls-col::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-color);
}

.panel-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sub-panel {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.panel-section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.panel-icon-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  background: rgba(16, 185, 129, 0.15);
  color: var(--converter-accent-light);
  border-radius: 6px;
}

/* Format Matrix Pills */
.preset-chips-container {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin: 0 auto 24px;
}

.preset-chip {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 6px 12px;
  color: var(--text-secondary);
  font-size: 0.76rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.preset-chip:hover {
  background: var(--bg-surface-hover);
  color: #fff;
  border-color: var(--converter-accent-light);
}

.preset-chip.active {
  background: rgba(16, 185, 129, 0.2);
  border-color: var(--converter-accent);
  color: var(--converter-accent-light);
  box-shadow: 0 0 0 1px var(--converter-accent);
}

.format-pills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}

.format-pill-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 8px 4px;
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 700;
  text-align: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.format-pill-btn:hover {
  background: var(--bg-surface-hover);
  color: #fff;
  border-color: var(--converter-accent-light);
}

.format-pill-btn.active {
  background: rgba(16, 185, 129, 0.2);
  border-color: var(--converter-accent);
  color: var(--converter-accent-light);
  box-shadow: 0 0 0 1px var(--converter-accent);
}

/* Sliders & Inputs */
.control-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.control-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.control-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.control-value {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.slider {
  width: 100%;
  height: 6px;
  background: #1e293b;
  border-radius: 3px;
  outline: none;
  accent-color: var(--converter-accent);
  cursor: pointer;
}

.select-input, .text-input {
  width: 100%;
  padding: 8px 12px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.84rem;
  outline: none;
  transition: border-color 0.15s ease;
}

.select-input:focus, .text-input:focus {
  border-color: var(--converter-accent);
}

/* Quick Quality Presets */
.quality-pills-row {
  display: flex;
  gap: 6px;
  margin-top: 4px;
}

.quality-pill-btn {
  flex: 1;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 4px 6px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  text-align: center;
  transition: all 0.15s ease;
}

.quality-pill-btn:hover {
  color: #fff;
  border-color: var(--converter-accent-light);
}

.quality-pill-btn.active {
  background: rgba(16, 185, 129, 0.15);
  border-color: var(--converter-accent);
  color: var(--converter-accent-light);
}

/* Action Buttons */
.btn-primary {
  background: linear-gradient(135deg, #059669, #047857);
  color: #fff;
  border: 1px solid #10b981;
  border-radius: var(--radius-md);
  padding: 12px 18px;
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #10b981, #059669);
  transform: translateY(-1px);
}

.btn-zip-export {
  background: transparent;
  color: var(--converter-accent-light);
  border: 1px solid rgba(52, 211, 153, 0.4);
  border-radius: var(--radius-md);
  padding: 11px 16px;
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-zip-export:hover {
  background: rgba(16, 185, 129, 0.12);
  border-color: var(--converter-accent);
}

.btn-subtle {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.8rem;
  cursor: pointer;
  transition: color 0.15s ease;
}

.btn-subtle:hover {
  color: #ef4444;
}

/* Dropzone Styling */
.dropzone-container {
  padding: 40px 0;
}

.converter-uploader-box {
  background: var(--bg-surface);
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-xl);
  padding: 60px 24px;
  text-align: center;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.converter-uploader-box.drag-over {
  border-color: var(--converter-accent);
  background: rgba(16, 185, 129, 0.05);
}

.dropzone-icon {
  width: 64px;
  height: 64px;
  color: var(--converter-accent-light);
  margin-bottom: 16px;
}

.dropzone-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.dropzone-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 24px;
}

.btn-upload {
  background: linear-gradient(135deg, #059669, #047857);
  color: #fff;
  border: 1px solid #10b981;
  border-radius: var(--radius-md);
  padding: 12px 28px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-upload:hover {
  background: linear-gradient(135deg, #10b981, #059669);
  transform: translateY(-1px);
}

.btn-sample-demo {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  font-size: 0.78rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-sample-demo:hover {
  background: var(--bg-surface-hover);
  color: #fff;
}

.paste-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
}
.kbd {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 4px;
  padding: 1px 5px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
}

/* Modal Preview Overlay */
.preview-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.preview-modal-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0,0,0,0.7);
}

.preview-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
}

.preview-modal-body {
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
  background: #020617;
  max-height: 60vh;
}

.preview-modal-img {
  max-width: 100%;
  max-height: 55vh;
  object-fit: contain;
  border-radius: 6px;
}

.preview-modal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
}