:root {
  --bg-dark: #090c10;
  --bg-card: rgba(18, 24, 33, 0.85);
  --bg-card-hover: rgba(24, 32, 44, 0.95);
  --border-color: rgba(255, 255, 255, 0.1);
  --border-glow: rgba(56, 189, 248, 0.35);
  
  --primary: #38bdf8;
  --primary-hover: #0284c7;
  --primary-glow: rgba(56, 189, 248, 0.25);
  
  --success: #34d399;
  --success-hover: #059669;
  --danger: #f87171;
  --danger-hover: #dc2626;
  --warning: #fbbf24;
  
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.5), 0 0 1px rgba(255, 255, 255, 0.1);
  --shadow-glow: 0 0 25px rgba(56, 189, 248, 0.15);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  background-image: 
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(56, 189, 248, 0.12), transparent),
    radial-gradient(circle at 10% 90%, rgba(52, 211, 153, 0.05), transparent 40%);
  background-attachment: fixed;
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.app-container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 30px 20px 60px;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.brand-title {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.2), rgba(52, 211, 153, 0.2));
  border: 1px solid var(--border-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  box-shadow: var(--shadow-glow);
}

.tagline {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.2px;
  color: var(--primary);
  text-transform: uppercase;
}

.app-header h1 {
  font-size: 26px;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.5px;
  line-height: 1.2;
}

.app-header p {
  font-size: 13px;
  color: var(--text-muted);
}

.header-badges {
  display: flex;
  gap: 10px;
  align-items: center;
}

.badge {
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  backdrop-filter: blur(10px);
}

.badge.on {
  background: rgba(52, 211, 153, 0.15);
  border-color: rgba(52, 211, 153, 0.4);
  color: var(--success);
}

.badge.limit-badge {
  background: rgba(56, 189, 248, 0.12);
  border-color: rgba(56, 189, 248, 0.3);
  color: var(--primary);
}

/* Cards */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 22px;
  margin-bottom: 22px;
  box-shadow: var(--shadow-card);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
  border-color: rgba(255, 255, 255, 0.16);
}

.card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 15px;
  margin-bottom: 16px;
}

.card-head h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
}

.card-head p {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

.counter-badge {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--border-color);
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  color: var(--primary);
  font-weight: 700;
}

/* Upload & Dropzone */
.dropzone-card.drag-over {
  border-color: var(--primary);
  background: rgba(56, 189, 248, 0.08);
  box-shadow: 0 0 30px rgba(56, 189, 248, 0.25);
}

.upload-area {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  text-align: center;
  background: rgba(0, 0, 0, 0.2);
  transition: all 0.2s ease;
}

.dropzone-card.drag-over .upload-area {
  border-color: var(--primary);
  background: rgba(56, 189, 248, 0.05);
}

.upload-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 12px;
  border-radius: 50%;
  background: rgba(56, 189, 248, 0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.drop-text {
  font-weight: 600;
  font-size: 15px;
  color: var(--text-main);
  margin-bottom: 4px;
}

.limit-info {
  font-size: 12px;
  color: var(--text-dim);
  display: block;
  margin-bottom: 18px;
}

/* Actions Bar & Buttons */
.actions-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  user-select: none;
  font-family: var(--font-sans);
}

.btn:active {
  transform: scale(0.97);
}

.primary-btn {
  background: var(--primary);
  color: #04131d;
  font-weight: 700;
  box-shadow: 0 4px 14px var(--primary-glow);
}

.primary-btn:hover {
  background: var(--primary-hover);
  color: #ffffff;
}

.secondary-btn {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-color);
  color: var(--text-main);
}

.secondary-btn:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.25);
}

.success-btn {
  background: var(--success);
  color: #022c22;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(52, 211, 153, 0.25);
}

.success-btn:hover {
  background: var(--success-hover);
  color: #ffffff;
}

.danger-btn {
  background: rgba(248, 113, 113, 0.12);
  border-color: rgba(248, 113, 113, 0.3);
  color: var(--danger);
}

.danger-btn:hover {
  background: var(--danger);
  color: #ffffff;
}

.outline-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
}

.outline-btn:hover {
  border-color: var(--text-muted);
  color: var(--text-main);
}

.small-btn {
  padding: 6px 12px;
  font-size: 12px;
  border-radius: var(--radius-sm);
}

/* Camera Panel */
.camera-panel {
  margin-top: 18px;
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  background: #000000;
  overflow: hidden;
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.8);
}

.camera-header {
  padding: 10px 16px;
  background: rgba(18, 24, 33, 0.9);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
}

.camera-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-main);
}

.captured-badge {
  background: rgba(52, 211, 153, 0.2);
  color: var(--success);
  border: 1px solid rgba(52, 211, 153, 0.4);
}

.video-container {
  position: relative;
  width: 100%;
  max-height: 440px;
  background: #000;
  overflow: hidden;
}

.video-container video {
  width: 100%;
  height: 100%;
  max-height: 440px;
  object-fit: contain;
  display: block;
}

.camera-overlay-grid {
  position: absolute;
  top: 15%;
  left: 15%;
  right: 15%;
  bottom: 15%;
  border: 2px dashed rgba(56, 189, 248, 0.5);
  border-radius: 12px;
  pointer-events: none;
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.35);
}

.camera-actions {
  padding: 14px;
  display: flex;
  gap: 12px;
  justify-content: center;
  background: rgba(18, 24, 33, 0.95);
  border-top: 1px solid var(--border-color);
}

.snap-btn {
  padding-left: 24px;
  padding-right: 24px;
  font-size: 14px;
}

.shutter-flash {
  animation: flashAnim 0.2s ease-out;
}

@keyframes flashAnim {
  0% { opacity: 0.3; }
  50% { opacity: 1; background: #fff; }
  100% { opacity: 1; }
}

/* Image Grid */
.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 14px;
  margin-top: 20px;
}

.image-card {
  position: relative;
  background: rgba(15, 21, 28, 0.8);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.image-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.2);
}

.thumb {
  width: 100%;
  height: 130px;
  object-fit: cover;
  display: block;
  background: #000;
}

.image-info {
  padding: 10px 12px;
}

.image-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
}

.image-status {
  font-size: 11px;
  color: var(--text-muted);
  display: block;
  margin-top: 2px;
}

.image-status.ok { color: var(--success); font-weight: 600; }
.image-status.busy { color: var(--primary); font-weight: 600; }
.image-status.error { color: var(--danger); font-weight: 600; }

.remove-image {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(10, 14, 18, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text-muted);
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.remove-image:hover {
  background: var(--danger);
  color: #fff;
  border-color: var(--danger);
}

.empty-state {
  padding: 35px 20px;
  text-align: center;
  color: var(--text-muted);
  background: rgba(0, 0, 0, 0.15);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  margin-top: 16px;
}

.empty-state svg {
  color: var(--text-dim);
  margin-bottom: 10px;
}

.empty-state p {
  font-size: 13px;
}

.hidden {
  display: none !important;
}

/* Progress bar */
.progress-bar-track {
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-top: 10px;
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary), var(--success));
  border-radius: var(--radius-full);
  transition: width 0.25s ease;
}

.progress-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
}

/* Results section & Model Groups */
.group-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 16px;
}

.model-group-card {
  background: rgba(15, 21, 28, 0.95);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
  transition: all 0.2s ease;
}

.model-group-card:hover {
  border-color: rgba(56, 189, 248, 0.45);
}

.model-group-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.model-title-edit {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-grow: 1;
}

.model-name-input {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  width: 260px;
  max-width: 100%;
  transition: border-color 0.2s ease;
}

.model-name-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-glow);
}

.group-actions-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.serial-row-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.serial-row-item {
  display: grid;
  grid-template-columns: 32px 1fr 34px;
  gap: 10px;
  align-items: center;
}

.serial-index {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-dim);
  text-align: center;
}

.serial-input {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.5px;
  color: #38bdf8;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  transition: border-color 0.15s ease;
}

.serial-input:focus {
  outline: none;
  border-color: var(--primary);
  background: rgba(0, 0, 0, 0.6);
}

.delete-serial-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  height: 32px;
  width: 32px;
  transition: all 0.15s ease;
}

.delete-serial-btn:hover {
  background: rgba(248, 113, 113, 0.15);
  color: var(--danger);
}

.add-serial-btn {
  margin-top: 10px;
  font-size: 12px;
  color: var(--primary);
  background: rgba(56, 189, 248, 0.08);
  border: 1px dashed rgba(56, 189, 248, 0.3);
  padding: 7px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
  transition: all 0.15s ease;
}

.add-serial-btn:hover {
  background: rgba(56, 189, 248, 0.18);
  border-color: var(--primary);
}

/* Model Container Tally Output Box & Action Bar */
.model-tally-box {
  margin-top: 16px;
  background: rgba(4, 8, 12, 0.85);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
}

.model-tally-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.model-preview-textarea {
  width: 100%;
  min-height: 70px;
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  color: #38bdf8;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
  resize: vertical;
}

.model-container-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.copy-model-btn {
  background: var(--primary);
  color: #04131d;
  font-weight: 700;
  padding: 9px 16px;
  font-size: 13px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.copy-model-btn:hover {
  background: var(--primary-hover);
  color: #ffffff;
}

.master-export-card summary {
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 700;
  color: var(--text-muted);
  user-select: none;
}

.master-export-card summary:hover {
  color: var(--text-main);
}

.export-hint {
  font-size: 11px;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.08);
}

.add-serial-btn:hover {
  background: rgba(56, 189, 248, 0.18);
  border-color: var(--primary);
}

/* Tally Controls */
.tally-controls {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 16px;
  background: rgba(0, 0, 0, 0.2);
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.control-group {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.control-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  min-width: 150px;
}

.line-toggle-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.radio-chip, .checkbox-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.radio-chip:hover, .checkbox-chip:hover {
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--text-main);
}

.radio-chip input[type="radio"], .checkbox-chip input[type="checkbox"] {
  accent-color: var(--primary);
}

.radio-chip:has(input:checked) {
  background: rgba(56, 189, 248, 0.15);
  border-color: var(--primary);
  color: var(--primary);
}

.format-options {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.select-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}

.styled-select {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  padding: 6px 12px;
  font-family: var(--font-sans);
  font-size: 13px;
  outline: none;
}

.styled-select:focus {
  border-color: var(--primary);
}

.textarea-wrapper {
  position: relative;
  margin-bottom: 16px;
}

textarea#tallyOutput {
  width: 100%;
  min-height: 180px;
  background: rgba(6, 9, 13, 0.95);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  color: #38bdf8;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  resize: vertical;
  transition: border-color 0.2s ease;
}

textarea#tallyOutput:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.export-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.copy-main-btn {
  padding: 12px 24px;
  font-size: 14px;
}

.copy-status {
  font-size: 13px;
  font-weight: 600;
  color: var(--success);
}

/* Advanced Accordion */
.advanced-card summary {
  font-weight: 600;
  cursor: pointer;
  color: var(--text-muted);
  outline: none;
  user-select: none;
}

.advanced-card summary:hover {
  color: var(--text-main);
}

.advanced-details {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border-color);
}

.advanced-details pre {
  background: rgba(0, 0, 0, 0.5);
  padding: 12px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  white-space: pre-wrap;
  word-break: break-all;
}

/* Footer */
.app-footer {
  text-align: center;
  color: var(--text-dim);
  font-size: 12px;
  margin-top: 30px;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  min-width: 260px;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  background: rgba(18, 24, 33, 0.95);
  border: 1px solid var(--border-color);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: toastIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast.toast-info { border-color: var(--primary); color: var(--text-main); }
.toast.toast-success { border-color: var(--success); color: var(--success); }
.toast.toast-error { border-color: var(--danger); color: var(--danger); }
.toast.toast-warning { border-color: var(--warning); color: var(--warning); }

@keyframes toastIn {
  from { opacity: 0; transform: translateY(-12px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Responsive */
@media (max-width: 680px) {
  .app-container { padding: 16px 12px 40px; }
  .app-header { flex-direction: column; align-items: flex-start; }
  .header-badges { width: 100%; justify-content: space-between; }
  .card { padding: 16px; }
  .actions-bar { flex-direction: column; width: 100%; }
  .actions-bar .btn { width: 100%; justify-content: center; }
  .line-toggle-group { width: 100%; display: grid; grid-template-columns: repeat(2, 1fr); }
  .export-actions { flex-direction: column; width: 100%; }
  .export-actions .btn { width: 100%; justify-content: center; }
}