/* ==========================================================================
   PREMIUM MODERN DESIGN SYSTEM: QA GARMENTS PLATFORM
   Vanilla CSS3 with HSL palettes, glassmorphism, responsive grids & themes.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. VARIABLES & THEMING
   -------------------------------------------------------------------------- */
:root {
  /* Common System Tokens */
  --font-family-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-family-display: 'Outfit', var(--font-family-sans);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-circular: 50%;
  
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  
  --color-success: HSL(142, 70%, 45%);
  --color-success-hover: HSL(142, 75%, 38%);
  --color-warning: HSL(38, 92%, 50%);
  --color-danger: HSL(350, 80%, 55%);
  --color-danger-hover: HSL(350, 85%, 48%);
  --color-info: HSL(200, 85%, 55%);

  /* Default Dark Mode Palette */
  --bg-primary: HSL(222, 24%, 8%);
  --bg-secondary: HSL(222, 20%, 12%);
  --bg-tertiary: HSL(222, 18%, 16%);
  
  --accent-primary: HSL(227, 85%, 62%);
  --accent-hover: HSL(227, 80%, 68%);
  --accent-translucent: rgba(99, 102, 241, 0.15);
  
  --text-primary: HSL(210, 30%, 98%);
  --text-secondary: HSL(210, 16%, 80%);
  --text-muted: HSL(210, 10%, 55%);
  
  --border-color: HSL(222, 12%, 22%);
  --border-color-glow: rgba(99, 102, 241, 0.3);
  
  --card-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
  --glass-bg: rgba(18, 22, 33, 0.65);
  --glass-blur: saturate(180%) blur(16px);
  --glass-border: rgba(255, 255, 255, 0.05);
}

[data-theme="light"] {
  /* Light Mode Palette Override */
  --bg-primary: HSL(220, 20%, 96%);
  --bg-secondary: HSL(0, 0%, 100%);
  --bg-tertiary: HSL(220, 15%, 92%);
  
  --accent-primary: HSL(227, 85%, 56%);
  --accent-hover: HSL(227, 80%, 62%);
  --accent-translucent: rgba(79, 70, 229, 0.1);
  
  --text-primary: HSL(222, 30%, 15%);
  --text-secondary: HSL(222, 15%, 40%);
  --text-muted: HSL(222, 10%, 58%);
  
  --border-color: HSL(220, 15%, 85%);
  --border-color-glow: rgba(79, 70, 229, 0.2);
  
  --card-shadow: 0 16px 36px rgba(0, 0, 0, 0.04), 0 4px 12px rgba(0, 0, 0, 0.02);
  --glass-bg: rgba(255, 255, 255, 0.75);
  --glass-blur: saturate(190%) blur(12px);
  --glass-border: rgba(0, 0, 0, 0.04);
}

/* --------------------------------------------------------------------------
   2. GLOBAL STYLES & LAYOUTS
   -------------------------------------------------------------------------- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

body {
  font-family: var(--font-family-sans);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  transition: background-color var(--transition-slow), color var(--transition-normal);
  display: flex;
  flex-direction: column;
}

/* Scrollbar customizations */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background-color: var(--border-color);
  border-radius: var(--radius-sm);
}
::-webkit-scrollbar-thumb:hover {
  background-color: var(--text-muted);
}

/* Ambient glow nodes */
.glow-bg-1, .glow-bg-2 {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: var(--radius-circular);
  filter: blur(140px);
  opacity: 0.15;
  pointer-events: none;
  z-index: 0;
  transition: opacity var(--transition-slow);
}
.glow-bg-1 {
  top: -100px;
  right: -100px;
  background-color: var(--accent-primary);
}
.glow-bg-2 {
  bottom: -150px;
  left: -150px;
  background-color: var(--color-success);
}

[data-theme="light"] .glow-bg-1, 
[data-theme="light"] .glow-bg-2 {
  opacity: 0.08;
}

/* Viewport Coordinator */
#viewports-wrapper {
  position: relative;
  width: 100%;
  flex: 1;
  display: flex;
  flex-direction: column;
  z-index: 1;
}

.viewport-section {
  display: none;
  opacity: 0;
  transition: opacity var(--transition-normal);
  width: 100%;
  height: 100%;
  min-height: 100vh;
}

.viewport-section.active {
  display: flex;
  flex-direction: column;
  opacity: 1;
}

/* --------------------------------------------------------------------------
   3. COMPONENTS: CARDS, BUTTONS & FORM INPUTS
   -------------------------------------------------------------------------- */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--card-shadow);
  transition: background-color var(--transition-slow), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-panel {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
}

/* Typography utilities */
h1, h2, h3, h4 {
  font-family: var(--font-family-display);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.subtitle {
  font-size: 14px;
  color: var(--text-secondary);
}

.card-header {
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 20px;
}
.card-header.space-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.card-header.border-none {
  border-bottom: none;
  margin-bottom: 0;
}
.padding-bottom-sm {
  padding-bottom: 10px;
}

.card-sub {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Buttons */
button {
  cursor: pointer;
  border: none;
  outline: none;
  background: none;
  font-family: var(--font-family-sans);
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-primary {
  background-color: var(--accent-primary);
  color: white;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
}
.btn-primary:hover:not(:disabled) {
  background-color: var(--accent-hover);
  box-shadow: 0 6px 16px rgba(99, 102, 241, 0.35);
  transform: translateY(-1px);
}
.btn-primary:active:not(:disabled) {
  transform: translateY(1px);
}
.btn-primary:disabled {
  background-color: var(--border-color);
  color: var(--text-muted);
  box-shadow: none;
  cursor: not-allowed;
}
.btn-primary.sm {
  padding: 8px 16px;
  font-size: 13px;
  border-radius: var(--radius-sm);
}
.btn-primary.large {
  padding: 16px 32px;
  font-size: 15px;
  border-radius: var(--radius-md);
}

.btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 12px 24px;
  border-radius: var(--radius-md);
}
.btn-secondary:hover {
  background-color: var(--border-color);
  color: var(--text-primary);
}
.btn-secondary.sm {
  padding: 8px 16px;
  font-size: 13px;
  border-radius: var(--radius-sm);
}
.btn-secondary.danger {
  color: var(--color-danger);
  border-color: rgba(239, 68, 68, 0.2);
}
.btn-secondary.danger:hover {
  background-color: rgba(239, 68, 68, 0.1);
  border-color: var(--color-danger);
}

.btn-icon-circular {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-circular);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}
.btn-icon-circular:hover {
  color: var(--text-primary);
  background-color: var(--border-color);
  transform: scale(1.05);
}

.btn-link {
  color: var(--text-muted);
  font-size: 13px;
}
.btn-link:hover {
  color: var(--accent-primary);
}

.btn-text {
  color: var(--text-muted);
  font-size: 13px;
}
.btn-text:hover {
  color: var(--text-primary);
}

/* Forms & Inputs */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 18px;
}

.form-group label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

input[type="text"],
input[type="password"],
input[type="number"],
input[type="date"],
select {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-family-sans);
  font-size: 14px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  outline: none;
  transition: all var(--transition-fast);
}

select {
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23a1a1aa' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 16px;
  padding-right: 40px !important;
}

select option {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
}

input::placeholder {
  color: var(--text-muted);
}

input:focus,
select:focus {
  border-color: var(--accent-primary);
  background-color: var(--bg-secondary);
  box-shadow: 0 0 0 4px var(--accent-translucent);
}

.input-hint {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

.form-row {
  display: flex;
  gap: 16px;
}
.flex-1 { flex: 1; }
.flex-2 { flex: 2; }
.full-width { width: 100%; }

.form-divider {
  height: 1px;
  background-color: var(--border-color);
  margin: 15px 0 25px;
}

/* SVGs & Spinners */
.svg-icon {
  width: 20px;
  height: 20px;
  stroke-width: 2px;
}
.svg-icon-sm {
  width: 16px;
  height: 16px;
  stroke-width: 2px;
}
.svg-icon-large {
  width: 32px;
  height: 32px;
  stroke-width: 1.8px;
}
.svg-icon-large.grayed {
  color: var(--text-muted);
}

.spinner-sm {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--accent-primary);
  border-radius: var(--radius-circular);
  animation: spin 0.8s linear infinite;
}

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

/* --------------------------------------------------------------------------
   4. VIEWPORT: DEVICE ACTIVATION SCREEN (UNVERIFIED)
   -------------------------------------------------------------------------- */
#unverified-container {
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.auth-card {
  width: 100%;
  max-width: 460px;
  padding: 40px;
  text-align: center;
}

.status-icon-wrapper {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-circular);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}
.status-icon-wrapper.warning {
  background-color: rgba(217, 119, 6, 0.1);
  color: var(--color-warning);
}
.status-icon-wrapper.info {
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--color-info);
}

.pulse {
  animation: heart-pulse 2s infinite ease-in-out;
}

@keyframes heart-pulse {
  0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217, 119, 6, 0.4); }
  70% { transform: scale(1.05); box-shadow: 0 0 0 10px rgba(217, 119, 6, 0); }
  100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217, 119, 6, 0); }
}

.auth-header h1 {
  font-size: 24px;
  margin-bottom: 12px;
}

.auth-body {
  margin-top: 30px;
  text-align: left;
}

.device-id-box {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  margin-bottom: 24px;
}
.device-id-box .label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  display: block;
  margin-bottom: 4px;
}
.device-id-box .id-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.device-id-box code {
  font-family: monospace;
  font-size: 13px;
  color: var(--text-secondary);
  word-break: break-all;
}
.btn-icon {
  color: var(--text-muted);
}
.btn-icon:hover {
  color: var(--text-primary);
}

.auth-footer {
  margin-top: 30px;
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
}

#request-status-box {
  text-align: center;
  padding: 24px;
}

.status-headline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 10px;
}
.status-headline h3 {
  font-size: 16px;
}
.status-description {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 16px;
}
.status-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
}

.hidden {
  display: none !important;
}

/* --------------------------------------------------------------------------
   5. VIEWPORT: ADMINISTRATOR PORTAL
   -------------------------------------------------------------------------- */
#admin-container {
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.admin-card {
  width: 100%;
  max-width: 1100px;
  padding: 40px;
}

#admin-login-box {
  max-width: 400px;
  margin: 0 auto;
}
#admin-login-box h1 {
  font-size: 22px;
}
#admin-login-box .button-row {
  display: flex;
  gap: 16px;
  margin-top: 20px;
}
#admin-login-box .button-row button {
  flex: 1;
}

.admin-header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 24px;
  margin-bottom: 24px;
}
.admin-header-row h2 {
  font-size: 24px;
}
.admin-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}
.admin-header-actions {
  display: flex;
  gap: 16px;
}

/* Devices Table */
.device-table-wrapper {
  overflow-x: auto;
}

.device-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13px;
}

.device-table th {
  padding: 14px 16px;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
}

.device-table td {
  padding: 16px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.device-table tbody tr:hover {
  background-color: rgba(255, 255, 255, 0.01);
}
[data-theme="light"] .device-table tbody tr:hover {
  background-color: rgba(0, 0, 0, 0.01);
}

.device-info-cell {
  display: flex;
  flex-direction: column;
}
.device-info-cell .d-name {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 14px;
}
.device-info-cell .d-ua {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
  max-width: 250px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.device-id-cell {
  font-family: monospace;
  font-size: 11px;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 9999px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge.pending {
  background-color: rgba(217, 119, 6, 0.12);
  color: var(--color-warning);
}
.badge.approved {
  background-color: rgba(16, 185, 129, 0.12);
  color: var(--color-success);
}
.badge.blocked {
  background-color: rgba(239, 68, 68, 0.12);
  color: var(--color-danger);
}

.table-loading {
  text-align: center;
  padding: 40px !important;
  color: var(--text-muted);
}
.table-empty {
  text-align: center;
  padding: 40px !important;
  color: var(--text-muted);
}

.actions-cell {
  display: flex;
  gap: 10px;
}

/* --------------------------------------------------------------------------
   6. VIEWPORT: REPORT GENERATOR CORE
   -------------------------------------------------------------------------- */
#app-container {
  padding: 24px;
  max-width: 1440px;
  margin: 0 auto;
  gap: 24px;
  height: auto;
  min-height: auto;
}

.glass-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 28px;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--card-shadow);
}

.header-branding {
  display: flex;
  align-items: center;
  gap: 16px;
}
.logo-wrapper {
  background-color: var(--accent-translucent);
  color: var(--accent-primary);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}
.app-logo {
  width: 24px;
  height: 24px;
}
.header-branding h1 {
  font-size: 18px;
  font-family: var(--font-family-display);
  letter-spacing: 0.05em;
  font-weight: 800;
}
.brand-sub {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 16px;
}

.device-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

.pulse-indicator {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-circular);
}
.pulse-indicator.approved {
  background-color: var(--color-success);
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4);
  animation: pill-pulse 1.8s infinite;
}

@keyframes pill-pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.5); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.btn-secondary.text {
  border-color: transparent;
  background-color: transparent;
}
.btn-secondary.text:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--border-color);
}

/* Workspace Grid (Split design) */
.workspace-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  flex: 1;
}

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

.main-form-card, .image-card-panel {
  padding: 30px;
  height: 100%;
  display: flex;
  flex-direction: column;
}

/* Computed Values Display */
.computed-results-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-top: 10px;
}

.computed-metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.computed-metric.highlight {
  border-left: 1px solid var(--border-color);
  padding-left: 20px;
}
.computed-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
}
.computed-value-wrapper {
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.metric-value {
  font-family: var(--font-family-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
}
.metric-unit {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
}

.computed-metric.highlight .metric-value {
  color: var(--color-warning);
}

/* Drag-Drop Zone */
.upload-zone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 40px 24px;
  text-align: center;
  transition: all var(--transition-normal);
  cursor: pointer;
  background-color: rgba(255, 255, 255, 0.005);
}
.upload-zone:hover, .upload-zone.dragover {
  border-color: var(--accent-primary);
  background-color: var(--accent-translucent);
}

.upload-icon-circle {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-circular);
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  transition: all var(--transition-normal);
}
.upload-zone:hover .upload-icon-circle, 
.upload-zone.dragover .upload-icon-circle {
  background-color: var(--accent-primary);
  color: white;
  transform: translateY(-2px);
}

.uploader-title {
  font-weight: 600;
  font-size: 15px;
  margin-bottom: 4px;
}
.uploader-sub {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.hidden-file-input {
  display: none;
}

/* Counter Badge */
.counter-badge {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 600;
}

/* Image Grid */
.image-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 24px;
  flex: 1;
}

@media (max-width: 480px) {
  .image-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.empty-grid-msg {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 13px;
  gap: 12px;
}

/* Image Cards in Grid */
.image-card {
  position: relative;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--bg-tertiary);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: all var(--transition-normal);
}
.image-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
  border-color: var(--border-color-glow);
}

.image-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.image-card:hover img {
  transform: scale(1.05);
}

/* Overlay caption edit area */
.image-caption-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 60%, rgba(0,0,0,0));
  padding: 24px 8px 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  z-index: 2;
}

.image-caption-overlay input {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: white;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  width: 100%;
  outline: none;
  text-align: center;
  transition: all var(--transition-fast);
}

.image-caption-overlay input:focus {
  background: rgba(255, 255, 255, 0.25);
  border-color: white;
}

.image-caption-overlay input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

/* Control actions inside card */
.image-actions-overlay {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  gap: 4px;
  z-index: 3;
  opacity: 0;
  transform: translateY(-4px);
  transition: all var(--transition-normal);
}
.image-card:hover .image-actions-overlay,
.image-card:focus-within .image-actions-overlay {
  opacity: 1;
  transform: translateY(0);
}

.btn-action-small {
  width: 26px;
  height: 26px;
  border-radius: var(--radius-sm);
  background-color: rgba(0, 0, 0, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
}
.btn-action-small:hover {
  background-color: var(--accent-primary);
  transform: scale(1.1);
}
.btn-action-small.danger:hover {
  background-color: var(--color-danger);
}

/* Left / right small order banners (Alternative reordering for touch screens) */
.btn-action-small svg {
  width: 12px;
  height: 12px;
}

/* Footer layout inside uploader card */
.generator-footer-row {
  display: flex;
  align-items: center;
  gap: 20px;
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
  margin-top: 24px;
}

@media (max-width: 600px) {
  .generator-footer-row {
    flex-direction: column;
    align-items: stretch;
  }
}

.optimization-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--text-muted);
}
.green-text {
  color: var(--color-success);
}

/* Theme switching styling overrides */
[data-theme="light"] .image-card {
  box-shadow: 0 4px 10px rgba(0,0,0,0.06);
}
[data-theme="light"] .computed-results-panel {
  background-color: var(--bg-secondary);
}

/* Form error states or success validation */
input:user-invalid {
  border-color: var(--color-danger);
}

/* Spinner helper for PDF button load states */
.btn-spin-icon {
  animation: spin 1s linear infinite;
  margin-right: 8px;
}
.opacity-25 { opacity: 0.25; }
.opacity-75 { opacity: 0.75; }

/* --------------------------------------------------------------------------
   7. TOAST NOTIFICATION SYSTEM
   -------------------------------------------------------------------------- */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  padding: 12px 24px;
  border-radius: var(--radius-md);
  z-index: 1000;
  font-size: 13px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  opacity: 0;
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.3s ease;
  pointer-events: none;
}

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

[data-theme="light"] .toast {
  box-shadow: 0 10px 24px rgba(0,0,0,0.08);
}