/* ═══════════════════════════════════════════════════════════════
   ReduceImageSize Tools — Premium SaaS Frontend CSS
   Clean, modern design with generous spacing, premium SVGs,
   refined typography, and smooth micro-interactions.
   ═══════════════════════════════════════════════════════════════ */
:root {
  --ris-accent: #1769ff;
  --ris-accent-hover: #4F46E5;
  --ris-accent-light: #EEF2FF;
  --ris-accent-glow: rgba(99,102,241,0.18);
  --ris-accent-subtle: rgba(99,102,241,0.08);
  --ris-success: #10B981;
  --ris-success-light: #ECFDF5;
  --ris-error: #EF4444;
  --ris-error-light: #FEF2F2;
  --ris-warn: #F59E0B;
  --ris-warn-light: #FFFBEB;
  --ris-text: #0F172A;
  --ris-text-secondary: #475569;
  --ris-text-tertiary: #94A3B8;
  --ris-text-inverse: #FFFFFF;
  --ris-border: #E2E8F0;
  --ris-border-light: #F1F5F9;
  --ris-bg: #FFFFFF;
  --ris-bg-secondary: #F8FAFC;
  --ris-bg-tertiary: #F1F5F9;
  --ris-bg-elevated: #FFFFFF;
  --ris-radius: 16px;
  --ris-radius-sm: 12px;
  --ris-radius-xs: 8px;
  --ris-radius-pill: 100px;
  --ris-shadow-xs: 0 1px 2px rgba(0,0,0,0.03);
  --ris-shadow-sm: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.03);
  --ris-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --ris-shadow-md: 0 4px 6px -1px rgba(0,0,0,0.06), 0 2px 4px -2px rgba(0,0,0,0.04);
  --ris-shadow-lg: 0 10px 25px -5px rgba(0,0,0,0.07), 0 8px 10px -6px rgba(0,0,0,0.03);
  --ris-shadow-xl: 0 20px 40px -8px rgba(0,0,0,0.09), 0 8px 16px -8px rgba(0,0,0,0.03);
  --ris-transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --ris-transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ═══ ANIMATIONS ═══ */
@keyframes ris-fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes ris-scale-in {
  from { opacity: 0; transform: scale(0.97); }
  to { opacity: 1; transform: scale(1); }
}
.ris-workspace { animation: ris-fade-in 0.4s ease-out; }
.ris-result-card { animation: ris-scale-in 0.35s ease-out; }
.ris-file-info { animation: ris-fade-in 0.3s ease-out; }

/* ═══ WRAPPER ═══ */
.ris-tool-wrapper {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--ris-text);
  line-height: 1.6;
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 0;
}
.ris-tool-container {
  background: var(--ris-bg);
  border-radius: var(--ris-radius);
  box-shadow: var(--ris-shadow-lg);
  padding: 36px 44px 40px;
  border: 1px solid var(--ris-border-light);
  position: relative;
  overflow: hidden;
}

/* Subtle gradient accent at top of card */
.ris-tool-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--ris-accent), #818CF8, #A78BFA, #C084FC, var(--ris-accent));
  background-size: 300% 100%;
  animation: ris-shimmer 12s ease-in-out infinite;
}
@keyframes ris-shimmer {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* ═══ HEADER ═══ */
.ris-tool-header {
  text-align: center;
  margin: 0 0 24px 0;
  padding: 0;
}
.ris-tool-title {
  font-size: 1.85rem;
  font-weight: 800;
  margin: 0;
  color: var(--ris-text);
  letter-spacing: -0.03em;
  line-height: 1.2;
}

/* ═══ PRIVACY BADGE ═══ */
.ris-privacy-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 14px 0 0;
  margin-top: 28px;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--ris-text-tertiary);
  letter-spacing: 0.01em;
  opacity: 0.6;
  transition: opacity var(--ris-transition);
}
.ris-privacy-badge:hover {
  opacity: 1;
}
.ris-privacy-badge svg {
  flex-shrink: 0;
  color: var(--ris-text-tertiary);
}

/* ═══ UPLOAD ZONE ═══ */
.ris-upload-zone {
  border: 2px dashed #A5B4FC;
  border-radius: var(--ris-radius);
  padding: 64px 32px;
  text-align: center;
  cursor: pointer;
  transition: all var(--ris-transition-slow);
  position: relative;
  background: repeating-linear-gradient(45deg, transparent, transparent 12px, rgba(99,102,241,0.015) 12px, rgba(99,102,241,0.015) 13px), var(--ris-bg-secondary);
  -webkit-tap-highlight-color: transparent;
}
.ris-upload-zone:hover {
  border-color: var(--ris-accent);
  border-style: dashed;
  background: repeating-linear-gradient(45deg, transparent, transparent 12px, rgba(99,102,241,0.04) 12px, rgba(99,102,241,0.04) 13px), var(--ris-accent-light);
  box-shadow: 0 0 0 4px var(--ris-accent-glow), 0 8px 24px rgba(99,102,241,0.12);
  transform: translateY(-2px);
}
.ris-upload-zone.ris-dragover {
  border-color: var(--ris-accent);
  border-style: solid;
  border-width: 2px;
  background: var(--ris-accent-light);
  box-shadow: 0 0 0 4px var(--ris-accent-glow), 0 8px 24px rgba(99,102,241,0.12);
  transform: translateY(-1px);
}
.ris-upload-icon {
  margin-bottom: 24px;
  color: var(--ris-text-tertiary);
  transition: all var(--ris-transition-slow);
}
.ris-upload-zone:hover .ris-upload-icon {
  color: var(--ris-accent);
  transform: translateY(-4px);
}
.ris-upload-text {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 8px 0;
  color: var(--ris-text);
  letter-spacing: -0.02em;
}
.ris-upload-or {
  color: var(--ris-text-tertiary);
  font-size: 0.85rem;
  margin: 12px 0;
  font-weight: 500;
}
.ris-upload-formats {
  font-size: 0.78rem;
  color: var(--ris-text-tertiary);
  margin-top: 24px;
  letter-spacing: 0.03em;
  font-weight: 500;
}
/* Big colored select button inside upload zone */
.ris-upload-zone .ris-btn {
  padding: 16px 44px;
  font-size: 1.05rem;
  font-weight: 700;
  border-radius: var(--ris-radius-xs);
  background: var(--ris-accent);
  color: var(--ris-text-inverse);
  border: none;
  box-shadow: 0 4px 14px var(--ris-accent-glow), inset 0 1px 0 rgba(255,255,255,0.15);
  transition: all var(--ris-transition);
}
.ris-upload-zone .ris-btn:hover {
  background: var(--ris-accent-hover);
  color: var(--ris-text-inverse);
  box-shadow: 0 6px 20px var(--ris-accent-glow), inset 0 1px 0 rgba(255,255,255,0.15);
  transform: translateY(-2px);
  border: none;
}
.ris-upload-zone .ris-btn:active {
  transform: translateY(0) scale(0.97);
}
.ris-file-input { display: none; }

/* ═══ FILE INFO CARD ═══ */
.ris-file-card {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 18px 22px;
  background: var(--ris-bg-secondary);
  border: 1px solid var(--ris-border-light);
  border-radius: var(--ris-radius-sm);
  margin-bottom: 28px;
  transition: all var(--ris-transition);
}
.ris-file-card:hover {
  box-shadow: var(--ris-shadow);
  border-color: var(--ris-border);
}
.ris-file-thumb {
  width: 68px;
  height: 68px;
  border-radius: var(--ris-radius-xs);
  overflow: hidden;
  flex-shrink: 0;
  border: 1px solid var(--ris-border);
}
.ris-file-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.ris-file-details { flex: 1; min-width: 0; }
.ris-file-name {
  font-weight: 700;
  font-size: 0.92rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--ris-text);
  letter-spacing: -0.01em;
}
.ris-file-meta {
  font-size: 0.8rem;
  color: var(--ris-text-secondary);
  margin-top: 2px;
  font-weight: 500;
}
.ris-file-meta strong {
  color: var(--ris-text);
  font-weight: 700;
}
.ris-btn-icon {
  background: var(--ris-bg);
  border: 1px solid var(--ris-border);
  border-radius: var(--ris-radius-xs);
  padding: 10px;
  cursor: pointer;
  color: var(--ris-text-secondary);
  transition: all var(--ris-transition);
  display: flex;
  align-items: center;
  justify-content: center;
}
.ris-btn-icon:hover {
  background: var(--ris-accent-light);
  color: var(--ris-accent);
  border-color: var(--ris-accent);
  transform: translateY(-1px);
  box-shadow: var(--ris-shadow-sm);
}
.ris-change-btn { flex-shrink: 0; }

/* ═══════════════════════════════════════════════════════════════
   WORKSPACE — Two-column desktop layout
   ═══════════════════════════════════════════════════════════════ */
.ris-workspace {
  display: flex;
  gap: 28px;
  align-items: flex-start;
}
.ris-image-panel {
  flex: 1 1 50%;
  min-width: 0;
  background: repeating-conic-gradient(rgba(0,0,0,0.03) 0% 25%, transparent 0% 50%) 50% / 16px 16px;
  border-radius: var(--ris-radius-sm);
  border: 1px solid var(--ris-border-light);
  overflow: hidden;
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.ris-controls-panel {
  flex: 1 1 50%;
  min-width: 0;
  max-width: 520px;
  background: linear-gradient(180deg, var(--ris-bg-elevated), #FAFBFF);
  border-radius: var(--ris-radius-sm);
  border: 1px solid var(--ris-border-light);
  padding: 24px;
  box-sizing: border-box;
  box-shadow: var(--ris-shadow-sm);
}

/* ═══ PREVIEW ═══ */
.ris-preview-container {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  box-sizing: border-box;
}
.ris-preview-img {
  max-width: 100%;
  max-height: 500px;
  display: block;
  border-radius: var(--ris-radius-xs);
  box-shadow: var(--ris-shadow-xs);
}

/* ═══════════════════════════════════════════════════════════════
   CROP TOOL
   ═══════════════════════════════════════════════════════════════ */
.ris-crop-container {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  box-sizing: border-box;
  overflow: hidden;
}
.ris-crop-inner {
  position: relative;
  display: inline-block;
  line-height: 0;
  max-width: 100%;
}
.ris-crop-image {
  display: block;
  max-width: 100%;
  max-height: 500px;
  user-select: none;
  -webkit-user-drag: none;
  border-radius: 4px;
}
.ris-crop-canvas {
  position: absolute;
  top: 0;
  left: 0;
  cursor: crosshair;
  touch-action: none;
  border-radius: 4px;
}
.ris-crop-ratios {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.ris-crop-ratio-btn {
  padding: 8px 18px;
  border: 1.5px solid var(--ris-border);
  border-radius: var(--ris-radius-pill);
  background: var(--ris-bg);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ris-text-secondary);
  cursor: pointer;
  transition: all var(--ris-transition);
}
.ris-crop-ratio-btn:hover {
  border-color: var(--ris-accent);
  color: var(--ris-accent);
  background: var(--ris-accent-light);
  transform: translateY(-1px);
}
.ris-crop-ratio-btn.selected {
  background: var(--ris-accent);
  color: var(--ris-text-inverse);
  border-color: var(--ris-accent);
  box-shadow: 0 2px 10px var(--ris-accent-glow);
}
.ris-crop-info {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ris-text);
  padding: 12px 16px;
  background: var(--ris-bg-secondary);
  border: 1px solid var(--ris-border-light);
  border-radius: var(--ris-radius-xs);
  font-variant-numeric: tabular-nums;
}
.ris-crop-dim { color: var(--ris-accent); font-weight: 800; }

/* ═══════════════════════════════════════════════════════════════
   BUTTONS — Premium with shadow & micro-interactions
   ═══════════════════════════════════════════════════════════════ */
.ris-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--ris-radius-xs);
  font-size: 0.9rem;
  font-weight: 650;
  cursor: pointer;
  transition: all var(--ris-transition);
  border: none;
  text-decoration: none;
  line-height: 1.4;
  white-space: nowrap;
  letter-spacing: -0.01em;
  position: relative;
  overflow: hidden;
  font-family: inherit;
}
.ris-btn:focus-visible {
  outline: 2px solid var(--ris-accent);
  outline-offset: 2px;
}
.ris-btn:active { transform: scale(0.97); }
.ris-btn-primary {
  background: linear-gradient(135deg, var(--ris-accent), #7C3AED);
  color: var(--ris-text-inverse);
  border-color: transparent;
  box-shadow: 0 2px 12px rgba(99,102,241,0.25);
}
.ris-btn-primary:hover {
  background: linear-gradient(135deg, var(--ris-accent-hover), #6D28D9);
  color: var(--ris-text-inverse);
  border-color: transparent;
  box-shadow: 0 6px 20px rgba(99,102,241,0.3);
  transform: translateY(-1px);
}
.ris-btn-primary:active { transform: translateY(0) scale(0.97); }
.ris-btn-outline {
  background: var(--ris-bg);
  color: var(--ris-accent);
  border: 1.5px solid var(--ris-border);
  font-weight: 650;
}
.ris-btn-outline:hover {
  background: var(--ris-accent);
  color: var(--ris-text-inverse);
  border-color: var(--ris-accent);
  box-shadow: 0 2px 10px var(--ris-accent-glow);
  transform: translateY(-1px);
}
.ris-btn-outline:active { transform: translateY(0) scale(0.97); }


/* ═══ SETTINGS TOOLBAR — Save / Undo / Redo ═══ */
.ris-settings-toolbar {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--ris-border-light);
}
.ris-stb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 5px 10px;
  border-radius: 6px;
  border: 1.5px solid var(--ris-border);
  background: var(--ris-bg);
  color: var(--ris-text-secondary);
  font-size: 0.72rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--ris-transition);
  font-family: inherit;
  line-height: 1;
  white-space: nowrap;
}
.ris-stb-btn svg { flex-shrink: 0; opacity: 0.7; }
.ris-stb-btn:hover:not(:disabled) {
  border-color: var(--ris-accent);
  color: var(--ris-accent);
  background: var(--ris-accent-light);
}
.ris-stb-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}
.ris-stb-btn:active:not(:disabled) {
  transform: scale(0.95);
}
.ris-stb-save {
  margin-left: auto;
  background: var(--ris-accent);
  color: #fff;
  border-color: var(--ris-accent);
  opacity: 1;
}
.ris-stb-save svg { opacity: 1; color: #fff; }
.ris-stb-save:hover {
  background: var(--ris-accent-hover);
  border-color: var(--ris-accent-hover);
  color: #fff;
}
.ris-stb-save.ris-stb-saved {
  background: var(--ris-success);
  border-color: var(--ris-success);
  color: #fff;
}
.ris-stb-save.ris-stb-saved svg { color: #fff; }
/* ═══ MODE TABS — Premium scrollable slider with arrows ═══ */
.ris-mode-tabs-wrapper {
  position: relative;
  margin-bottom: 28px;
}
/* Tiny arrow buttons — outlined, non-overlapping */
.ris-tabs-arrow {
  position: absolute;
  top: 3px;
  transform: none;
  z-index: 3;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1.5px solid var(--ris-accent);
  background: var(--ris-bg);
  color: var(--ris-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, background var(--ris-transition), color var(--ris-transition);
  padding: 0;
}
.ris-tabs-arrow svg {
  width: 10px;
  height: 10px;
  flex-shrink: 0;
}
.ris-tabs-arrow:hover {
  background: var(--ris-accent);
  color: #fff;
}
.ris-tabs-arrow:active {
  transform: scale(0.88);
}
.ris-tabs-arrow-left { left: 4px; }
.ris-tabs-arrow-right { right: 4px; }
.ris-mode-tabs-wrapper.ris-can-scroll-left .ris-tabs-arrow-left { opacity: 1; pointer-events: auto; }
.ris-mode-tabs-wrapper.ris-can-scroll-right .ris-tabs-arrow-right { opacity: 1; pointer-events: auto; }

/* Scroll progress track below tabs — clearly visible */
.ris-mode-tabs-track {
  height: 6px;
  background: #94A3B8;
  border-radius: 100px;
  margin-top: 8px;
  overflow: hidden;
  position: relative;
  border: 1px solid #B0BEC5;
}
.ris-mode-tabs-track-fill {
  height: 100%;
  background: var(--ris-accent);
  border-radius: 100px;
  transition: width 0.25s ease, margin-left 0.25s ease;
  min-width: 20%;
  box-shadow: 0 0 6px var(--ris-accent-glow);
}

.ris-mode-tabs {
  display: flex;
  gap: 4px;
  background: var(--ris-bg-tertiary);
  padding: 5px 28px;
  border-radius: var(--ris-radius-xs);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x proximity;
  scroll-behavior: smooth;
  /* Visible styled scrollbar */
  scrollbar-width: thin;
  scrollbar-color: var(--ris-border) transparent;
}
.ris-mode-tabs::-webkit-scrollbar {
  height: 4px;
}
.ris-mode-tabs::-webkit-scrollbar-track {
  background: transparent;
  border-radius: 100px;
}
.ris-mode-tabs::-webkit-scrollbar-thumb {
  background: var(--ris-border);
  border-radius: 100px;
  transition: background var(--ris-transition);
}
.ris-mode-tabs::-webkit-scrollbar-thumb:hover {
  background: var(--ris-text-tertiary);
}
.ris-mode-tab {
  flex: 0 0 auto;
  min-width: max-content;
  padding: 10px 18px;
  border: none;
  background: transparent;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 650;
  color: var(--ris-text-secondary);
  cursor: pointer;
  transition: all var(--ris-transition);
  white-space: nowrap;
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  font-family: inherit;
  scroll-snap-align: start;
  user-select: none;
}
.ris-mode-tab svg {
  flex-shrink: 0;
  opacity: 0.6;
  transition: opacity var(--ris-transition);
}
.ris-mode-tab:hover {
  color: var(--ris-bg-elevated);
  background: var(--ris-accent);
  box-shadow: 0 2px 8px var(--ris-accent-glow);
}
.ris-mode-tab:hover svg { opacity: 1; color: #fff; }
.ris-mode-tab.active {
  background: var(--ris-bg-elevated);
  color: var(--ris-accent);
  box-shadow: var(--ris-shadow-sm), 0 1px 3px rgba(0,0,0,0.06);
  font-weight: 700;
}
.ris-mode-tab.active svg { opacity: 1; color: var(--ris-accent); }

/* ═══ CONTROL SECTIONS ═══ */
.ris-control-section {
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--ris-border-light);
}
.ris-control-section:last-child {
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 0;
}
.ris-control-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--ris-text-secondary);
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.ris-control-label svg {
  flex-shrink: 0;
  opacity: 1;
  color: var(--ris-text-secondary);
}

/* ═══ TARGET SIZE PRESETS ═══ */
.ris-target-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}
.ris-target-btn {
  padding: 10px 16px;
  border: 1.5px solid var(--ris-border);
  border-radius: var(--ris-radius-xs);
  background: var(--ris-bg);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ris-text);
  cursor: pointer;
  transition: all var(--ris-transition);
  font-family: inherit;
}
.ris-target-btn:hover {
  border-color: var(--ris-accent);
  color: var(--ris-text-inverse);
  background: var(--ris-accent);
  box-shadow: 0 2px 10px var(--ris-accent-glow);
  transform: translateY(-1px);
}
.ris-target-btn.selected {
  background: var(--ris-accent);
  color: var(--ris-text-inverse);
  border-color: var(--ris-accent);
  box-shadow: 0 2px 12px var(--ris-accent-glow);
  transform: translateY(-1px);
}

/* ═══ CUSTOM TARGET ═══ */
.ris-custom-target {
  margin-top: 12px;
  padding: 16px;
  background: var(--ris-bg-secondary);
  border: 1px solid var(--ris-border-light);
  border-radius: var(--ris-radius-xs);
}
.ris-custom-target-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.ris-custom-target-row select {
  -webkit-appearance: auto;
  appearance: auto;
  background-color: var(--ris-bg);
  background-image: none;
  cursor: pointer;
}

/* ═══ INPUTS ═══ */
.ris-input {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--ris-border);
  border-radius: var(--ris-radius-xs);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--ris-text);
  background: var(--ris-bg);
  transition: all var(--ris-transition);
  box-sizing: border-box;
  font-family: inherit;
}
.ris-input:focus {
  outline: none;
  border-color: var(--ris-accent);
  box-shadow: 0 0 0 3px var(--ris-accent-glow);
}
.ris-input-sm {
  width: auto;
  min-width: 90px;
  -webkit-appearance: auto;
  appearance: auto;
}
.ris-input::placeholder {
  color: var(--ris-text-tertiary, #9ca3af);
  opacity: 0.7;
}

/* ═══ QUALITY SLIDER — Modern filled track ═══ */
.ris-quality-row {
  display: flex;
  align-items: center;
  gap: 16px;
}
.ris-quality-end {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--ris-text-tertiary);
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.ris-range {
  flex: 1;
  height: 6px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--ris-bg-tertiary);
  border-radius: 100px;
  outline: none;
  cursor: pointer;
}
.ris-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--ris-bg);
  cursor: pointer;
  border: 3px solid var(--ris-accent);
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: box-shadow var(--ris-transition), transform var(--ris-transition);
}
.ris-range::-webkit-slider-thumb:hover {
  box-shadow: 0 2px 12px var(--ris-accent-glow);
  transform: scale(1.15);
}
.ris-range::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--ris-bg);
  cursor: pointer;
  border: 3px solid var(--ris-accent);
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.ris-quality-value {
  text-align: center;
  font-weight: 800;
  font-size: 1.6rem;
  margin: 12px 0;
  color: var(--ris-accent);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
}
.ris-quality-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}
.ris-quality-preset {
  padding: 7px 14px;
  border: 1.5px solid var(--ris-border);
  border-radius: var(--ris-radius-pill);
  background: var(--ris-bg);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--ris-text-secondary);
  cursor: pointer;
  transition: all var(--ris-transition);
  font-family: inherit;
}
.ris-quality-preset:hover {
  border-color: var(--ris-accent);
  color: var(--ris-accent);
  background: var(--ris-accent-light);
  transform: translateY(-1px);
}
.ris-quality-preset.selected {
  background: var(--ris-accent);
  color: var(--ris-text-inverse);
  border-color: var(--ris-accent);
  box-shadow: 0 2px 10px var(--ris-accent-glow);
}

/* ═══ FORMAT BUTTONS ═══ */
.ris-format-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 4px 0;
}
.ris-format-btn {
  flex: 1 1 0;
  min-width: 60px;
  padding: 10px 8px;
  border: 1.5px solid var(--ris-border);
  border-radius: var(--ris-radius-xs);
  background: var(--ris-bg);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ris-text);
  cursor: pointer;
  transition: all var(--ris-transition);
  white-space: nowrap;
  text-align: center;
  font-family: inherit;
}
.ris-format-btn:hover {
  border-color: var(--ris-accent);
  color: var(--ris-text-inverse);
  background: var(--ris-accent);
  box-shadow: 0 2px 10px var(--ris-accent-glow);
  transform: translateY(-1px);
}
.ris-format-btn.selected {
  background: var(--ris-accent);
  color: var(--ris-text-inverse);
  border-color: var(--ris-accent);
  box-shadow: 0 2px 10px var(--ris-accent-glow);
}


/* ═══ SECTION HEADERS — Premium Labels ═══ */
.ris-section-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--ris-text);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--ris-border-light);
}
.ris-section-header svg {
  flex-shrink: 0;
  color: var(--ris-accent);
}
.ris-section-header-sm {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--ris-text-secondary);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ═══ RESIZE ═══ */
.ris-resize-row {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.ris-resize-field { flex: 1; }
.ris-resize-field label {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--ris-text-tertiary);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.ris-checkbox-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--ris-text);
  margin-top: 14px;
  cursor: pointer;
}
.ris-checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--ris-accent);
  cursor: pointer;
}
.ris-resize-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 0;
}
.ris-resize-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(72px, 1fr));
  gap: 8px;
}
.ris-resize-preset {
  padding: 9px 10px;
  border: 1.5px solid var(--ris-border);
  border-radius: var(--ris-radius-xs);
  background: var(--ris-bg);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--ris-text-secondary);
  cursor: pointer;
  transition: all var(--ris-transition);
  font-family: inherit;
  text-align: center;
  justify-content: center;
}
.ris-resize-preset:hover {
  border-color: var(--ris-accent);
  color: var(--ris-text-inverse);
  background: var(--ris-accent);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px var(--ris-accent-glow);
}
.ris-upscale-preset {
  border-color: rgba(99,102,241,0.25);
  color: var(--ris-accent);
  background: var(--ris-accent-light);
}
.ris-upscale-preset:hover {
  border-color: var(--ris-accent);
  color: var(--ris-text-inverse);
  background: var(--ris-accent);
}
.ris-exact-preset {
  border-color: rgba(16,185,129,0.25);
  color: #059669;
  background: #ECFDF5;
}
.ris-exact-preset:hover {
  border-color: var(--ris-success);
  color: var(--ris-text-inverse);
  background: var(--ris-success);
}


/* ═══ ADJUSTMENTS ═══ */
.ris-adj-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 18px;
}
.ris-adj-row label {
  min-width: 90px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ris-text);
}
.ris-adj-val {
  min-width: 38px;
  text-align: right;
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--ris-accent);
  font-variant-numeric: tabular-nums;
}

/* ═══ TRANSFORM BUTTONS ═══ */
.ris-transform-btns {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.ris-transform-btn {
  padding: 10px 20px;
  border: 1.5px solid var(--ris-border);
  border-radius: var(--ris-radius-xs);
  background: var(--ris-bg);
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--ris-text);
  cursor: pointer;
  transition: all var(--ris-transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: inherit;
}
.ris-transform-btn svg {
  flex-shrink: 0;
  opacity: 0.65;
  transition: opacity var(--ris-transition);
}
.ris-transform-btn:hover {
  border-color: var(--ris-accent);
  color: var(--ris-text-inverse);
  background: var(--ris-accent);
  box-shadow: 0 2px 10px var(--ris-accent-glow);
  transform: translateY(-1px);
}
.ris-transform-btn:hover svg { opacity: 1; }
.ris-transform-btn:active { transform: translateY(0) scale(0.97); }

/* ═══ ACTION AREA ═══ */
.ris-action-area {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--ris-border-light);
  display: flex;
  gap: 12px;
  align-items: center;
}
.ris-action-area .ris-btn-primary { flex: 1; }

/* ═══ PROCESS BUTTON — Premium with icon ═══ */
.ris-process-btn {
  position: relative;
  overflow: hidden;
}
.ris-process-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 50%);
  pointer-events: none;
}

/* ═══ PROGRESS ═══ */
.ris-progress-area {
  padding: 40px 0;
  text-align: center;
}
.ris-progress-bar {
  width: 100%;
  height: 8px;
  background: var(--ris-bg-tertiary);
  border-radius: 100px;
  overflow: hidden;
  margin-bottom: 20px;
}
.ris-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--ris-accent), #818CF8, #A78BFA);
  background-size: 200% 100%;
  border-radius: 100px;
  transition: width 0.3s ease;
  width: 0%;
  animation: ris-progress-shimmer 2s linear infinite;
}
@keyframes ris-progress-shimmer {
  0% { background-position: 200% 50%; }
  100% { background-position: -200% 50%; }
}
.ris-progress-text {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ris-text-secondary);
}

/* ═══ RESULT ═══ */
.ris-result-card { text-align: center; }
.ris-result-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 24px;
}
.ris-result-done {
  font-size: 1.4rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--ris-success), #059669);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.03em;
}
.ris-result-note {
  padding: 14px 20px;
  background: var(--ris-warn-light);
  color: #92400E;
  border: 1px solid rgba(245,158,11,0.15);
  border-radius: var(--ris-radius-xs);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 24px;
}
.ris-result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(135px, 1fr));
  gap: 12px;
  margin-bottom: 32px;
}
.ris-stat {
  padding: 18px 14px;
  background: linear-gradient(135deg, var(--ris-bg-secondary), var(--ris-bg));
  border: 1px solid var(--ris-border-light);
  border-radius: var(--ris-radius-xs);
  transition: all var(--ris-transition);
  position: relative;
  overflow: hidden;
}
.ris-stat:hover {
  box-shadow: var(--ris-shadow);
  transform: translateY(-2px);
  border-color: var(--ris-border);
}
.ris-stat-label {
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--ris-text-secondary);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.ris-stat-value {
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--ris-text);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}
.ris-highlight { color: var(--ris-accent); }

/* Before / After */
.ris-before-after {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 32px;
}
.ris-ba-card {
  border-radius: var(--ris-radius-sm);
  overflow: hidden;
  border: 1px solid var(--ris-border-light);
  box-shadow: var(--ris-shadow);
  transition: all var(--ris-transition);
}
.ris-ba-card:hover {
  box-shadow: var(--ris-shadow-md);
  transform: translateY(-2px);
}
.ris-ba-label {
  padding: 12px 16px;
  background: var(--ris-bg-secondary);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--ris-text-secondary);
  border-bottom: 1px solid var(--ris-border-light);
}
.ris-ba-card img {
  width: 100%;
  display: block;
}

/* Result Actions */
.ris-result-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Error */
.ris-error-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 22px;
  background: var(--ris-error-light);
  border: 1px solid rgba(239,68,68,0.15);
  border-radius: var(--ris-radius-sm);
  color: var(--ris-error);
  font-size: 0.9rem;
  font-weight: 500;
}
.ris-error-card svg { flex-shrink: 0; }

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE — Premium mobile experience
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 900px) {
  .ris-tool-container { padding: 32px 24px; }
  .ris-workspace { flex-direction: column; gap: 24px; }
  .ris-controls-panel { width: 100%; max-width: 100%; padding: 20px; }
  .ris-image-panel { min-height: 240px; }
  .ris-before-after { grid-template-columns: 1fr; gap: 12px; }
  .ris-result-grid { grid-template-columns: repeat(2, 1fr); }
  .ris-stat { padding: 14px 11px; }
  .ris-stat-label { font-size: 0.62rem; }
  .ris-stat-value { font-size: 0.88rem; }
}
@media (max-width: 640px) {
  .ris-tool-wrapper { padding: 12px 0; }
  .ris-tool-container { padding: 24px 18px; }
  .ris-tool-title { font-size: 1.45rem; }
  .ris-upload-zone { padding: 48px 20px; }
  .ris-upload-icon svg { width: 40px; height: 40px; }
  .ris-settings-toolbar { gap: 4px; margin-bottom: 8px; padding-bottom: 8px; }
  .ris-stb-btn { padding: 4px 8px; font-size: 0.68rem; }
  .ris-stb-btn svg { width: 11px; height: 11px; }
  .ris-mode-tabs-wrapper { margin-bottom: 22px; }
  .ris-tabs-arrow { width: 16px; height: 16px; }
  .ris-tabs-arrow svg { width: 8px; height: 8px; }
  .ris-tabs-arrow-left { left: 3px; }
  .ris-tabs-arrow-right { right: 3px; }
  .ris-mode-tabs {
    gap: 3px;
    padding: 4px 24px;
  }
  .ris-mode-tab {
    padding: 9px 14px;
    font-size: 0.8rem;
    min-height: 42px;
    gap: 5px;
  }
  .ris-mode-tab svg { width: 15px; height: 15px; }
  .ris-target-presets { gap: 6px; }
  .ris-target-btn { padding: 9px 12px; font-size: 0.78rem; }
  .ris-resize-row { flex-direction: column; gap: 12px; }
  .ris-result-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .ris-stat { padding: 12px 10px; }
  .ris-stat-label { font-size: 0.6rem; margin-bottom: 3px; }
  .ris-stat-value { font-size: 0.82rem; }
  .ris-result-actions { flex-direction: column; gap: 10px; }
  .ris-result-actions .ris-btn { width: 100%; justify-content: center; }
  .ris-adj-row { flex-wrap: wrap; gap: 10px; margin-bottom: 14px; }
  .ris-adj-row label { min-width: auto; flex: 1; }
  .ris-adj-val { min-width: 34px; }
  .ris-format-btn { padding: 9px 10px; font-size: 0.78rem; }
  .ris-crop-container { padding: 16px; }
  .ris-crop-image { max-height: 55vh; }
  .ris-preview-container { padding: 16px; }
  .ris-action-area { flex-direction: column; margin-top: 24px; padding-top: 20px; }
  .ris-action-area .ris-btn { width: 100%; justify-content: center; }
  .ris-file-card { flex-wrap: wrap; gap: 12px; padding: 14px 16px; }
  .ris-control-section { margin-bottom: 22px; padding-bottom: 16px; }
  .ris-resize-grid { grid-template-columns: repeat(auto-fill, minmax(64px, 1fr)); gap: 6px; }
  .ris-quality-presets { gap: 5px; }
  .ris-quality-preset { padding: 6px 11px; font-size: 0.72rem; }
  .ris-transform-btns { gap: 8px; }
  .ris-transform-btn { padding: 9px 14px; font-size: 0.8rem; }
}
@media (max-width: 400px) {
  .ris-tool-container { padding: 20px 14px; }
  .ris-tool-title { font-size: 1.3rem; }
  .ris-upload-zone { padding: 36px 16px; }
  .ris-result-grid { grid-template-columns: 1fr; }
  .ris-quality-end:first-child { display: none; }
  .ris-target-btn { padding: 8px 10px; font-size: 0.76rem; }
  .ris-format-btn { padding: 9px 10px; font-size: 0.8rem; }
  .ris-file-thumb { width: 56px; height: 56px; }
}

/* ══════════════════════════════════════════════════════════════
   BULK REDUCE TOOL
   ══════════════════════════════════════════════════════════════ */
.ris-bulk-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ris-border, rgba(0,0,0,0.08));
}
.ris-bulk-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
  color: var(--ris-text, #1e293b);
}
.ris-bulk-title svg {
  color: var(--ris-accent, #4F46E5);
}
.ris-bulk-filelist {
  max-height: 320px;
  overflow-y: auto;
  margin-bottom: 16px;
  border: 1px solid var(--ris-border, rgba(0,0,0,0.08));
  border-radius: 8px;
}
.ris-bulk-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--ris-border, rgba(0,0,0,0.05));
  transition: background 0.15s;
}
.ris-bulk-item:last-child { border-bottom: none; }
.ris-bulk-item:hover { background: rgba(0,0,0,0.02); }
.ris-bulk-item-info {
  flex: 1;
  min-width: 0;
}
.ris-bulk-item-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--ris-text, #1e293b);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ris-bulk-item-meta {
  font-size: 12px;
  color: var(--ris-text-secondary, #64748b);
  margin-top: 2px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.ris-bulk-arrow {
  color: var(--ris-text-secondary, #64748b);
}
.ris-bulk-newsize {
  font-weight: 600;
  color: #10B981;
}
.ris-bulk-saved {
  color: #10B981;
  font-weight: 500;
}
.ris-bulk-error {
  color: #EF4444;
  font-size: 11px;
}
.ris-bulk-progress {
  height: 3px;
  background: rgba(0,0,0,0.06);
  border-radius: 2px;
  overflow: hidden;
  margin: 4px 14px 0;
}
.ris-bulk-progress-fill {
  height: 100%;
  background: var(--ris-accent, #4F46E5);
  border-radius: 2px;
  transition: width 0.2s;
  width: 0%;
}
.ris-bulk-item-status {
  font-size: 11px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 20px;
  white-space: nowrap;
}
.ris-bulk-pending {
  background: rgba(0,0,0,0.05);
  color: var(--ris-text-secondary, #64748b);
}
.ris-bulk-processing {
  background: rgba(79,70,229,0.1);
  color: var(--ris-accent, #4F46E5);
  animation: ris-pulse 1.5s infinite;
}
.ris-bulk-done {
  background: rgba(16,185,129,0.1);
  color: #059669;
}
.ris-bulk-failed {
  background: rgba(239,68,68,0.1);
  color: #EF4444;
}
@keyframes ris-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}
.ris-bulk-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.ris-bulk-dl-btn {
  flex-shrink: 0;
}

/* ═══ Bulk Thumbnail Grid (left panel) ═══ */
.ris-image-panel-bulk {
  background: var(--ris-bg-secondary) !important;
  background-image: none !important;
  min-height: 420px;
  align-items: flex-start;
  padding: 16px;
  overflow-y: auto;
}
.ris-bulk-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 12px;
  width: 100%;
}
.ris-bulk-thumb {
  background: var(--ris-bg);
  border-radius: var(--ris-radius-xs);
  border: 1px solid var(--ris-border-light);
  overflow: hidden;
  transition: all var(--ris-transition);
  animation: ris-fade-in 0.3s ease-out;
}
.ris-bulk-thumb:hover {
  border-color: var(--ris-accent);
  box-shadow: var(--ris-shadow-sm);
  transform: translateY(-1px);
}
.ris-bulk-thumb-img {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  overflow: hidden;
  background: repeating-conic-gradient(rgba(0,0,0,0.03) 0% 25%, transparent 0% 50%) 50% / 12px 12px;
}
.ris-bulk-thumb-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.ris-bulk-thumb-badge {
  position: absolute;
  bottom: 6px;
  right: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--ris-bg);
}
.ris-bulk-thumb-pending {
  background: var(--ris-text-tertiary);
}
.ris-bulk-thumb-processing {
  background: var(--ris-accent);
  animation: ris-pulse 1.5s infinite;
}
.ris-bulk-thumb-done {
  background: var(--ris-success);
}
.ris-bulk-thumb-failed {
  background: var(--ris-error);
}
.ris-bulk-thumb-name {
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--ris-text);
  padding: 6px 8px 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
}
.ris-bulk-thumb-size {
  font-size: 0.65rem;
  color: var(--ris-text-tertiary);
  padding: 0 8px 6px;
  font-weight: 500;
}

.ris-btn-sm {