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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: #16161d;
  color: #f5f7fb;
  min-height: 100vh;
  padding: 40px 20px;
  line-height: 1.6;
}

.container {
  max-width: 960px;
  margin: 0 auto;
}

.header {
  text-align: center;
  margin-bottom: 48px;
}

.header h1 {
  font-size: 2.8rem;
  font-weight: 800;
  color: #3b82f6;
  letter-spacing: -0.5px;
  margin-bottom: 10px;
}

.subtitle {
  font-size: 1.1rem;
  color: #9ca3af;
}

.upload-section {
  margin-bottom: 44px;
}

.upload-box {
  background: #0d0f12;
  border: 2px dashed #3b82f6;
  border-radius: 16px;
  padding: 60px 40px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.upload-box:hover {
  background: #11151b;
  border-color: #60a5fa;
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(59, 130, 246, 0.25);
}

.upload-box.dragover {
  background: #141922;
  border-color: #60a5fa;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.upload-content {
  pointer-events: none;
}

.upload-icon {
  font-size: 3.4rem;
  margin-bottom: 18px;
}

.upload-text {
  font-size: 1.2rem;
  font-weight: 600;
  color: #f5f7fb;
  margin-bottom: 10px;
}

.upload-hint {
  font-size: 0.95rem;
  color: #6b7280;
}

.loading {
  text-align: center;
  padding: 60px 20px;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid #11151b;
  border-top-color: #3b82f6;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 20px;
}

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

.loading p {
  color: #9ca3af;
  font-size: 1.05rem;
}

.hidden {
  display: none !important;
}

.error {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: #fca5a5;
  padding: 18px;
  border-radius: 12px;
  margin-bottom: 28px;
}

.results {
  animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  margin-bottom: 32px;
  padding-bottom: 18px;
  border-bottom: 2px solid #313638;
}

.results-header h2 {
  font-size: 2rem;
  font-weight: 700;
  color: #f5f7fb;
}

.export-btn {
  padding: 12px 22px;
  background: #3b82f6;
  color: #ffffff;
  border: none;
  border-radius: 10px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s ease;
}

.export-btn:hover {
  background: #2563eb;
  box-shadow: 0 8px 22px rgba(59, 130, 246, 0.35);
  transform: translateY(-1px);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 18px;
  margin-bottom: 44px;
}

.metric-card {
  background: #11151b;
  border: 1px solid #313638;
  border-radius: 14px;
  padding: 26px;
  text-align: center;
  transition: all 0.25s ease;
}

.metric-card:hover {
  border-color: #3b82f6;
  box-shadow: 0 10px 26px rgba(59, 130, 246, 0.2);
  transform: translateY(-3px);
}

.metric-value {
  font-size: 2.8rem;
  font-weight: 800;
  color: #3b82f6;
  margin-bottom: 8px;
}

.metric-label {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #9ca3af;
}

.patterns {
  display: grid;
  gap: 22px;
}

.pattern-card {
  background: #11151b;
  border: 1px solid #313638;
  border-radius: 16px;
  padding: 26px;
  position: relative;
  overflow: hidden;
  transition: all 0.25s ease;
}

.pattern-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(59, 130, 246, 0.08), transparent 30%);
  pointer-events: none;
}

.pattern-card::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 5px;
  height: 100%;
  background: #3b82f6;
}

.pattern-card:hover {
  border-color: #3b82f6;
  box-shadow: 0 12px 28px rgba(59, 130, 246, 0.18);
  transform: translateY(-2px);
}

.pattern-number {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 2px solid #3b82f6;
  background: #0d0f12;
  color: #3b82f6;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pattern-card h3 {
  font-size: 1.25rem;
  color: #f5f7fb;
  margin-bottom: 18px;
  padding-right: 70px;
}

.pattern-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  padding: 18px;
  border-radius: 12px;
  background: #0d0f12;
  border: 1px solid #313638;
  margin-bottom: 20px;
}

.stat {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.stat-label {
  color: #9ca3af;
  font-size: 0.95rem;
}

.stat-value {
  color: #f5f7fb;
  font-weight: 700;
}

.confidence-high { color: #4ade80; }
.confidence-medium { color: #fbbf24; }
.confidence-low { color: #f87171; }

.pattern-characteristic {
  background: #0d0f12;
  border: 1px solid #3b82f6;
  color: #3b82f6;
  border-radius: 10px;
  padding: 12px 14px;
  font-family: 'Courier New', monospace;
  margin-bottom: 16px;
}

.pattern-recommendation {
  background: #11151b;
  border: 1px solid #313638;
  border-radius: 12px;
  padding: 16px;
  color: #d1d5db;
  line-height: 1.7;
}

.pattern-recommendation strong {
  color: #3b82f6;
  display: block;
  margin-bottom: 8px;
}

.no-patterns {
  text-align: center;
  padding: 50px 18px;
}

.no-patterns p:first-child {
  font-size: 1.4rem;
  color: #4ade80;
  margin-bottom: 8px;
}

.demo-info {
  text-align: center;
  margin-top: 52px;
  padding: 24px;
  color: #6b7280;
  font-size: 0.95rem;
}

.demo-info strong { color: #9ca3af; }

@media (max-width: 768px) {
  body { padding: 26px 16px; }
  .header h1 { font-size: 2.2rem; }
  .results-header { flex-direction: column; align-items: flex-start; }
  .export-btn { width: 100%; text-align: center; }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .pattern-stats { grid-template-columns: 1fr; }
  .upload-box { padding: 42px 24px; }
}
  letter-spacing: -1px;
}

.subtitle {
  color: #b8b8d1;
  font-siz9ca3af;
  font-size: 1.1rem;
  font-weight: 400

.container {
  max-width: 900px;
  margin: 0 auto;
}

.upload-section {
  margin-bottom: 30px;
}

.upload-box {#263447;
  backdrop-filter: blur(10px);
  border: 2px dashed #3f4f63;
  border-radius: 12px;
  padding: 50px 30px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.upload-box:hover {
  border-color: #556b85;
  background: #2d3d50;
}

.upload-box.dragover {
  border-color: #6b8099;
  background: #2d3d50
  background: rgba(102, 126, 234, 0.15);
  transform: scale(1.02);
}

.upload-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: 15px;
}

.upload-text {
  font-size: 1.2rem;
  margin-bottom: 8px;
  color: #c9d1d9;
}

.upload-hint {
  font-size: 0.85rem;
  color: #8b949e;
  max-width: 600px;
  margin: 0 auto;
}

.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 50px;
  gap: 20px;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid #30363d;
  border-top-color: #58a6ff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.hidden {
  display: none !important;
}

.error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 10px;
  padding: 16px 20px;
  color: #fca5a5;
  margin-bottom: 20px;
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.results {
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 2px solid rgba(255, 255, 255, 0.1);
}

.results-header h2 {
  font-size: 1.8rem;
  color: #fff;
}

.export-btn {
  padding: 10px 20px;
  background: #21262d;
  border: 1px solid #30363d;
  border-radius: 8px;
  color: #c9d1d9;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.95rem;
  font-weight: 500;
}

.export-btn:hover {
  background: #30363d;
  border-color: #58a6ff;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}

.metric-card {161b22;
  border: 1px solid #30363d;
  border-radius: 12px;
  padding: 24px;
  text-align: center;
  transition: all 0.3s ease;
}

.metric-card:hover {
  border-color: #58a6ff;
  transform: translateY(-2px);
}

.metric-value {
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, #58a6ff 0%, #a371f7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
  letter-spacing: -1px;
}

.metric-label {
  color: #8b949e;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 6: 0.5px;
  font-weight: 500;
}

.patterns {
  display: grid;
  gap: 20px;
}

.pattern-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-fil#263447;
  backdrop-filter: blur(10px);
  border: 1px solid #3f4f63;
  border-radius: 12px;
  padding: 24px;
  position: relative;
  overflow: hidden;
}

.pattern-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: #6b8099

.pattern-number {
  position: absolute;
  top: 16px;
  right: 16px;
  background: rgba(102, 126, 234, 0.2);
  border: 1px #3f4f63;
  border: 1px solid #556b85;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  color: #ffffff

.pattern-card h3 {
  font-size: 1.2rem;
  margin-bottom: 16px;
  color: #fff;
  padding-right: 50px;
}

.pattern-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.03);
  border-radiu#1f2d3d
}

.stat {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.stat-label {
  color: #b8b8d1;
  font-size: 0.9rem;
}

.stat-value {
  font-weight: 600;
  color: #e0e0f0;
}

.confidence-high {
  color: #4ade80 !important;
}

.confidence-medium {
  color: #facc15 !important;
}

.confidence-low {
  color: #f87171 !important;
}

.pattern-characteristic {
  background: rgba(255, 255, 255, 0.02);
  border: 1px #1f2d3d;
  border: 1px solid #3f4f63;
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 16px;
  font-size: 0.95rem;
  color: #d1d5db;
  font-family: 'Courier New', monospace;
}

.pattern-recommendation {
  background: #1f2d3d;
  border: 1px solid #3f4f63;
  border-radius: 8px;
  padding: 16px;
  color: #e5e7eb;
  line-height: 1.7;
}

.pattern-recommendation strong {
  color: #ffffff;
  margin-bottom: 8px;
}

.no-patterns {
  text-align: center;
  padding: 40px;
  color: #b8b8d1;
}

.no-patterns p:first-child {
  font-size: 1.3rem;
  color: #4ade80;
  margin-bottom: 10px;
}

.demo-info {
  text-align: center;
  margin-top: 40px;
  padding: 20px;
  color: #8b949e;
  font-size: 0.9rem;
}

.demo-info strong {
  color: #c9d1d9;
}

@media (max-width: 768px) {
  .header h1 {
    font-size: 2rem;
  }

  .pattern-stats {
    grid-template-columns: 1fr;
  }

  .metrics {
    grid-template-columns: 1fr 1fr;
  }

  .results-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .export-btn {
    width: 100%;
  }
}