/* CSS Variables */
:root {
  --bg-primary: #0f1419;
  --bg-secondary: #1a1f26;
  --bg-tertiary: #242b33;
  --bg-hover: #2d353f;
  
  --text-primary: #f7f9fa;
  --text-secondary: #8b98a5;
  --text-muted: #5c6b77;
  
  --accent-primary: #1d9bf0;
  --accent-hover: #1a8cd8;
  --accent-success: #00ba7c;
  --accent-warning: #ffad1f;
  --accent-error: #f4212e;
  
  --border-color: #2f3640;
  --border-radius: 12px;
  --border-radius-sm: 8px;
  
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: 0.2s ease;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
}

body {
  font-family: var(--font-family);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* App Layout */
.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.logo-img {
  height: 80px;
  width: auto;
  display: block;
}

.logo i {
  color: var(--accent-primary);
  font-size: 1.5rem;
}

.header-actions {
  position: absolute;
  right: 0;
}

/* Main Content */
.main {
  flex: 1;
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  width: 100%;
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto 1fr;
}

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

/* Upload Section */
.upload-section {
  grid-column: 1;
}

.upload-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Drop Zone */
.drop-zone {
  background: var(--bg-secondary);
  border: 2px dashed var(--border-color);
  border-radius: var(--border-radius);
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.drop-zone:hover {
  border-color: var(--accent-primary);
  background: var(--bg-tertiary);
}

.drop-zone.drag-over {
  border-color: var(--accent-primary);
  background: rgba(29, 155, 240, 0.1);
}

.drop-zone.drag-over .drop-zone-content {
  opacity: 0;
}

.drop-zone.drag-over .drop-zone-active {
  opacity: 1;
}

.drop-zone-content {
  transition: var(--transition);
}

.drop-zone-active {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.drop-zone-active i {
  font-size: 3rem;
  color: var(--accent-primary);
  margin-bottom: 1rem;
}

.drop-icon {
  font-size: 3rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.drop-zone h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.drop-zone p {
  color: var(--text-secondary);
}

/* Options Panel */
.options-panel {
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
  padding: 1.5rem;
}

.options-panel h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.options-panel h3 i {
  color: var(--text-secondary);
}

.option-group {
  margin-bottom: 1.25rem;
}

.option-group:last-child {
  margin-bottom: 0;
}

.option-group label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.tooltip {
  position: relative;
  cursor: help;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  transition: color 0.2s ease;
}

.tooltip:hover {
  color: var(--accent-primary);
}

.tooltip::before {
  content: attr(title);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  padding: 8px 12px;
  border-radius: var(--border-radius-sm);
  font-size: 0.85rem;
  line-height: 1.4;
  white-space: normal;
  max-width: 250px;
  width: max-content;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  box-shadow: var(--shadow-md);
  z-index: 1000;
  border: 1px solid var(--border-color);
  text-align: center;
}

.tooltip::after {
  content: '';
  position: absolute;
  bottom: calc(100% + 2px);
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--bg-tertiary);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 1000;
}

.tooltip:hover::before,
.tooltip:hover::after {
  opacity: 1;
}

.tooltip:hover::before {
  transform: translateX(-50%) translateY(-4px);
}

.range-input {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.range-input input[type="range"] {
  flex: 1;
  height: 4px;
  background: var(--bg-tertiary);
  border-radius: 2px;
  -webkit-appearance: none;
}

.range-input input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  background: var(--accent-primary);
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition);
}

.range-input input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

.range-input span {
  font-family: monospace;
  font-size: 0.9rem;
  color: var(--text-primary);
  min-width: 50px;
}

/* Checkbox */
.checkbox-label {
  cursor: pointer;
  position: relative;
  padding-left: 28px;
}

.checkbox-label input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
}

.checkmark {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  transition: var(--transition);
}

.checkbox-label input:checked ~ .checkmark {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
}

.checkmark::after {
  content: '';
  position: absolute;
  display: none;
  left: 6px;
  top: 2px;
  width: 4px;
  height: 8px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.checkbox-label input:checked ~ .checkmark::after {
  display: block;
}

/* Radio Buttons */
.radio-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.radio-label {
  cursor: pointer;
  position: relative;
  padding-left: 28px;
  display: flex;
  align-items: center;
}

.radio-label input[type="radio"] {
  position: absolute;
  opacity: 0;
  cursor: pointer;
}

.radio-checkmark {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  transition: var(--transition);
}

.radio-label input[type="radio"]:checked ~ .radio-checkmark {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
}

.radio-checkmark::after {
  content: '';
  position: absolute;
  display: none;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 8px;
  height: 8px;
  background: white;
  border-radius: 50%;
}

.radio-label input[type="radio"]:checked ~ .radio-checkmark::after {
  display: block;
}

.radio-label:hover .radio-checkmark {
  border-color: var(--accent-primary);
}


/* Preview Section */
.preview-section {
  grid-column: 2;
  grid-row: 1 / 3;
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

@media (max-width: 1024px) {
  .preview-section {
    grid-column: 1;
    grid-row: auto;
    min-height: 400px;
  }
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.preview-header h3 {
  font-size: 1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.preview-header h3 i {
  color: var(--text-secondary);
}

.preview-controls {
  display: flex;
  gap: 0.5rem;
}

.preview-container {
  flex: 1;
  position: relative;
  background: var(--bg-primary);
}

.preview-container canvas {
  width: 100% !important;
  height: 100% !important;
}

.preview-info {
  display: flex;
  gap: 2rem;
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.info-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.info-value {
  font-size: 1rem;
  font-weight: 600;
  font-family: monospace;
}

/* Jobs Section */
.jobs-section {
  grid-column: 1;
}

.jobs-section h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.jobs-section h3 i {
  color: var(--text-secondary);
}

.jobs-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.empty-state {
  text-align: center;
  padding: 3rem 2rem;
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
}

.empty-state i {
  font-size: 2.5rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.empty-state p {
  color: var(--text-secondary);
}

/* Job Card */
.job-card {
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.job-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.job-info h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  word-break: break-all;
}

.job-meta {
  font-size: 0.8rem;
  color: var(--text-secondary);
  display: flex;
  gap: 1rem;
}

.job-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 500;
}

.job-status.queued {
  background: rgba(139, 152, 165, 0.2);
  color: var(--text-secondary);
}

.job-status.processing {
  background: rgba(29, 155, 240, 0.2);
  color: var(--accent-primary);
}

.job-status.completed {
  background: rgba(0, 186, 124, 0.2);
  color: var(--accent-success);
}

.job-status.failed {
  background: rgba(244, 33, 46, 0.2);
  color: var(--accent-error);
}

.job-progress {
  height: 4px;
  background: var(--bg-tertiary);
  border-radius: 2px;
  overflow: hidden;
}

.job-progress-bar {
  height: 100%;
  background: var(--accent-primary);
  border-radius: 2px;
  transition: width 0.3s ease;
}

.job-progress-bar.completed {
  background: var(--accent-success);
}

.job-progress-bar.failed {
  background: var(--accent-error);
}

.job-actions {
  display: flex;
  gap: 0.5rem;
}

.job-message {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.job-message.error {
  color: var(--accent-error);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 500;
  border: none;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.btn-primary {
  background: var(--accent-primary);
  color: white;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-success {
  background: var(--accent-success);
  color: white;
}

.btn-success:hover {
  background: #00a36e;
}

.btn-danger {
  background: var(--accent-error);
  color: white;
}

.btn-danger:hover {
  background: #d91c28;
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

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

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.85rem;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}

.modal.hidden {
  display: none;
}

.modal-content {
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
  width: 100%;
  max-width: 500px;
  max-height: 80vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
  font-size: 1.1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-secondary);
  cursor: pointer;
  line-height: 1;
  padding: 0.25rem;
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
}

/* Health Status */
.health-status {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.health-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: var(--bg-tertiary);
  border-radius: var(--border-radius-sm);
}

.health-item-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.health-item-label i {
  width: 20px;
  color: var(--text-secondary);
}

.health-badge {
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 500;
}

.health-badge.healthy {
  background: rgba(0, 186, 124, 0.2);
  color: var(--accent-success);
}

.health-badge.unhealthy {
  background: rgba(244, 33, 46, 0.2);
  color: var(--accent-error);
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 1100;
}

.toast {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  background: var(--bg-secondary);
  border-radius: var(--border-radius-sm);
  box-shadow: var(--shadow-lg);
  animation: slideIn 0.3s ease;
  border-left: 3px solid var(--text-secondary);
}

.toast.success {
  border-left-color: var(--accent-success);
}

.toast.error {
  border-left-color: var(--accent-error);
}

.toast.warning {
  border-left-color: var(--accent-warning);
}

.toast i {
  font-size: 1.1rem;
}

.toast.success i {
  color: var(--accent-success);
}

.toast.error i {
  color: var(--accent-error);
}

.toast.warning i {
  color: var(--accent-warning);
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Loading */
.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  gap: 1rem;
}

.loading i {
  font-size: 2rem;
  color: var(--accent-primary);
}

/* Utility */
.hidden {
  display: none !important;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-hover);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}