/* ==========================================================================
   Utility Seva - Image Compressor Stylesheet
   Compact, modern, responsive two-column layout with client-side image compression
   Optimized for 1366x768 single-screen desktop fit while preserving mobile usability
   ========================================================================== */

/* ==========================================================================
   1. Shared Site Header & Theme Toggle Alignment
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.site-header .nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
}

.site-header .nav-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-shrink: 0;
}

.site-header .theme-toggle-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  padding: 0;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.site-header .theme-toggle-btn:hover {
  background-color: var(--bg-surface-alt);
  color: var(--text-primary);
  border-color: var(--border-color-hover);
}

.site-header .theme-toggle-btn svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin: auto;
}

.site-header .theme-toggle-btn .sun-icon {
  display: none;
}

.site-header .theme-toggle-btn .moon-icon {
  display: block;
}

html[data-theme="dark"] .site-header .theme-toggle-btn .sun-icon,
html.dark .site-header .theme-toggle-btn .sun-icon {
  display: block;
}

html[data-theme="dark"] .site-header .theme-toggle-btn .moon-icon,
html.dark .site-header .theme-toggle-btn .moon-icon {
  display: none;
}

/* ==========================================================================
   2. Main Layout Container & Compact Top Bar
   ========================================================================== */
.compressor-main {
  padding: 0.45rem 0 1.5rem;
  min-height: calc(100vh - var(--nav-height) - 80px);
}

.compressor-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.4rem;
  flex-wrap: wrap;
}

.top-bar-left {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.breadcrumb-nav-compact {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.breadcrumb-nav-compact a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumb-nav-compact a:hover {
  color: var(--brand-500);
}

.compressor-title-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.compressor-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.tool-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.12rem 0.5rem;
  background-color: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.25);
  color: #059669;
  border-radius: var(--radius-full);
  font-size: 0.68rem;
  font-weight: 600;
}

html[data-theme="dark"] .tool-badge-pill,
html.dark .tool-badge-pill {
  background-color: rgba(16, 185, 129, 0.18);
  border-color: rgba(16, 185, 129, 0.35);
  color: #34d399;
}

.compressor-subtitle {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.2;
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* Compact Ghost Button */
.btn-ghost-sm {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.55rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-ghost-sm:hover {
  background-color: var(--bg-surface-alt);
  color: var(--text-primary);
  border-color: var(--border-color-hover);
}

.btn-ghost-sm svg {
  width: 13px;
  height: 13px;
}

/* Compact Alert Notification Banner */
.compressor-alert {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.775rem;
  margin-bottom: 0.4rem;
  background-color: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #ef4444;
}

html[data-theme="dark"] .compressor-alert,
html.dark .compressor-alert {
  background-color: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.4);
  color: #fca5a5;
}

.compressor-alert svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}

/* ==========================================================================
   3. Compression Settings Panel (Compact & Accessible)
   ========================================================================== */
.compressor-settings-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.5rem 0.85rem;
  margin-bottom: 0.5rem;
  box-shadow: var(--shadow-sm);
}

.settings-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 0.4rem;
  flex-wrap: wrap;
}

/* Mode Switch Tabs */
.mode-tabs-wrap {
  display: inline-flex;
  background-color: var(--bg-surface-alt);
  padding: 0.15rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  gap: 0.2rem;
}

.mode-tab-btn {
  padding: 0.22rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  border: none;
  background: none;
  border-radius: 3px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  transition: all var(--transition-fast);
}

.mode-tab-btn:hover {
  color: var(--text-primary);
}

.mode-tab-btn.active {
  background-color: var(--bg-surface);
  color: var(--brand-600);
  box-shadow: var(--shadow-sm);
}

html[data-theme="dark"] .mode-tab-btn.active,
html.dark .mode-tab-btn.active {
  background-color: var(--bg-surface);
  color: var(--brand-500);
}

.mode-tab-btn svg {
  width: 13px;
  height: 13px;
}

/* Auto Compress & Reset Settings */
.settings-actions-right {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.auto-compress-label {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.auto-compress-label input {
  accent-color: var(--brand-600);
  cursor: pointer;
}

/* Settings Controls Grid */
.settings-controls-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
}

@media (min-width: 768px) {
  .settings-controls-grid {
    grid-template-columns: minmax(260px, 1.35fr) minmax(210px, 1fr) auto;
    align-items: center;
    gap: 0.75rem;
  }
}

.setting-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.setting-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.setting-val-badge {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--brand-600);
  background-color: var(--bg-surface-alt);
  padding: 0.05rem 0.35rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

html[data-theme="dark"] .setting-val-badge,
html.dark .setting-val-badge {
  color: var(--brand-500);
}

/* Slider Controls */
.setting-slider {
  width: 100%;
  height: 5px;
  border-radius: 3px;
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-color);
  outline: none;
  accent-color: var(--brand-600);
  cursor: pointer;
}

.slider-quick-chips {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 0.15rem;
  flex-wrap: wrap;
}

.quick-chip {
  padding: 0.1rem 0.4rem;
  font-size: 0.675rem;
  font-weight: 500;
  color: var(--text-secondary);
  background-color: var(--bg-surface-alt);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.quick-chip:hover,
.quick-chip.active {
  background-color: rgba(99, 102, 241, 0.12);
  color: var(--brand-600);
  border-color: var(--brand-500);
}

html[data-theme="dark"] .quick-chip:hover,
html.dark .quick-chip:hover,
html[data-theme="dark"] .quick-chip.active,
html.dark .quick-chip.active {
  color: #a5b4fc;
}

/* Target Size Input Box */
.target-input-row {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.target-number-input {
  width: 85px;
  padding: 0.25rem 0.45rem;
  font-size: 0.775rem;
  font-weight: 600;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  outline: none;
}

.target-number-input:focus {
  border-color: var(--brand-500);
}

.target-unit-select {
  padding: 0.25rem 0.45rem;
  font-size: 0.775rem;
  font-weight: 600;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  outline: none;
  cursor: pointer;
}

/* Format Selector */
.format-select {
  padding: 0.28rem 0.55rem;
  font-size: 0.775rem;
  font-weight: 600;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  outline: none;
  cursor: pointer;
  width: 100%;
}

.format-select:focus {
  border-color: var(--brand-500);
}

/* Primary Compress Button */
.btn-compress-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.42rem 1rem;
  background-color: var(--brand-600);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 2px 6px rgba(99, 102, 241, 0.22);
  white-space: nowrap;
}

.btn-compress-primary:hover {
  background-color: var(--brand-700);
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(99, 102, 241, 0.3);
}

.btn-compress-primary:active {
  transform: translateY(0);
}

.btn-compress-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-compress-primary svg {
  width: 14px;
  height: 14px;
}

/* Optional Resize Toggle Accordion */
.resize-accordion-wrap {
  margin-top: 0.35rem;
  padding-top: 0.35rem;
  border-top: 1px dashed var(--border-color);
}

.resize-header-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.resize-header-toggle input {
  accent-color: var(--brand-600);
  cursor: pointer;
}

.resize-body-box {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 0.35rem;
  flex-wrap: wrap;
}

.resize-presets-row {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-wrap: wrap;
}

.custom-dims-row {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.custom-dim-input {
  width: 65px;
  padding: 0.2rem 0.4rem;
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  outline: none;
}

.custom-dim-input:focus {
  border-color: var(--brand-500);
}

/* ==========================================================================
   4. Mandatory Main Workspace: Two Columns (Left: Original, Right: Compressed)
   ========================================================================== */
.previews-comparison-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
}

@media (min-width: 900px) {
  .previews-comparison-grid {
    grid-template-columns: 1fr 1fr;
    align-items: stretch;
  }
}

/* Common Workspace Card */
.preview-panel-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.55rem 0.75rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  position: relative;
}

.panel-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.35rem;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.panel-title {
  font-size: 0.825rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.panel-title svg {
  width: 14px;
  height: 14px;
  color: var(--brand-500);
}

.panel-header-actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

/* Soft Sky-Blue Image Preview Stage */
.image-preview-stage {
  background-color: #e0f2fe;
  /* Soft sky blue */
  border: 1px solid #bae6fd;
  border-radius: var(--radius-sm);
  height: 225px;
  min-height: 170px;
  max-height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  user-select: none;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);

  /* Naya Code - Khali space ko khatam karne ke liye */
  width: fit-content;
  margin: 0 auto;
}

html[data-theme="dark"] .image-preview-stage,
html.dark .image-preview-stage {
  background-color: rgba(14, 165, 233, 0.08);
  border-color: rgba(56, 189, 248, 0.22);
}

.preview-rendered-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.12);
  display: block;
}

/* Empty Upload Dropzone State */
.upload-dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0.75rem 1rem;
  cursor: pointer;
  width: 100%;
  height: 100%;
  box-sizing: border-box;
}

.upload-dropzone:hover {
  background-color: rgba(186, 230, 253, 0.35);
}

html[data-theme="dark"] .upload-dropzone:hover,
html.dark .upload-dropzone:hover {
  background-color: rgba(14, 165, 233, 0.14);
}

.upload-icon-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: #ffffff;
  border: 2px dashed #0284c7;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0284c7;
  margin-bottom: 0.35rem;
  transition: transform 0.2s ease;
}

.upload-dropzone:hover .upload-icon-circle {
  transform: scale(1.06);
}

html[data-theme="dark"] .upload-icon-circle,
html.dark .upload-icon-circle {
  background-color: var(--bg-surface);
  border-color: var(--brand-500);
  color: var(--brand-500);
}

.upload-primary-text {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.12rem;
}

.upload-sub-text {
  font-size: 0.72rem;
  color: var(--text-secondary);
  margin-bottom: 0.45rem;
}

.btn-browse-photo {
  padding: 0.3rem 0.85rem;
  font-size: 0.75rem;
  font-weight: 700;
  background-color: var(--brand-600);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-browse-photo:hover {
  background-color: var(--brand-700);
}

/* Empty Result Placeholder */
.empty-result-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0.75rem 1rem;
  color: var(--text-muted);
}

.empty-result-placeholder svg {
  width: 36px;
  height: 36px;
  stroke-width: 1.5;
  margin-bottom: 0.35rem;
  opacity: 0.6;
}

.empty-result-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 0.12rem;
}

.empty-result-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
  max-width: 240px;
  line-height: 1.3;
}

/* Processing Overlay Spinner */
.processing-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(2px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  z-index: 20;
}

.spinner {
  width: 30px;
  height: 30px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Metadata Info Stats Row */
.meta-stats-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--bg-surface-alt);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.32rem 0.55rem;
  margin-top: 0.35rem;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.meta-pills-wrap {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.meta-pill {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.meta-pill strong {
  color: var(--text-primary);
}

.meta-format-badge {
  font-size: 0.675rem;
  font-weight: 700;
  padding: 0.1rem 0.35rem;
  border-radius: var(--radius-sm);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  text-transform: uppercase;
}

/* Savings Badge */
.savings-badge-success {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.15rem 0.45rem;
  background-color: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #059669;
  border-radius: var(--radius-sm);
  font-size: 0.7rem;
  font-weight: 700;
}

html[data-theme="dark"] .savings-badge-success,
html.dark .savings-badge-success {
  background-color: rgba(16, 185, 129, 0.2);
  border-color: rgba(16, 185, 129, 0.4);
  color: #34d399;
}

.savings-badge-neutral {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.15rem 0.45rem;
  background-color: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.25);
  color: #d97706;
  border-radius: var(--radius-sm);
  font-size: 0.7rem;
  font-weight: 600;
}

html[data-theme="dark"] .savings-badge-neutral,
html.dark .savings-badge-neutral {
  background-color: rgba(245, 158, 11, 0.18);
  border-color: rgba(245, 158, 11, 0.35);
  color: #fbbf24;
}

/* Prominent Download Button Group */
.download-action-bar {
  margin-top: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.btn-download-compressed {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.42rem 1rem;
  background-color: #059669;
  /* Vibrant emerald green for prominent download */
  color: #ffffff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.825rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 2px 6px rgba(5, 150, 105, 0.25);
  text-decoration: none;
}

.btn-download-compressed:hover {
  background-color: #047857;
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(5, 150, 105, 0.35);
}

.btn-download-compressed:active {
  transform: translateY(0);
}

.btn-download-compressed:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-download-compressed svg {
  width: 15px;
  height: 15px;
}

/* ==========================================================================
   5. Helpful Guidance Cards Section
   ========================================================================== */
.compressor-guidance-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
  margin-top: 0.85rem;
}

@media (min-width: 768px) {
  .compressor-guidance-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.guidance-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem 0.95rem;
  font-size: 0.775rem;
  color: var(--text-secondary);
  line-height: 1.45;
  box-shadow: var(--shadow-sm);
}

.guidance-card-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.guidance-card-title svg {
  width: 15px;
  height: 15px;
  color: var(--brand-500);
}

.guidance-card ul {
  padding-left: 1.15rem;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}