/* Modern MNIST Dashboard Styles */
:root {
  --bg: #070a14;
  --bg-accent: #11162b;
  --card: rgba(16, 21, 38, 0.85);
  --card-border: rgba(255, 255, 255, 0.08);
  --text: #f4f5fb;
  --muted: #8e95b0;
  --accent: #6c63ff;
  --accent-soft: rgba(108, 99, 255, 0.2);
  --success: #4caf50;
  --error: #ff6b6b;
}

* {
  box-sizing: border-box;
}

body {
  font-family: 'Inter', Arial, sans-serif;
  background: radial-gradient(circle at top, rgba(58, 74, 210, 0.4), transparent 45%), var(--bg);
  color: var(--text);
  margin: 0;
  min-height: 100vh;
}

.app-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.hero {
  background: linear-gradient(135deg, rgba(14, 22, 60, 0.9), rgba(22, 16, 45, 0.9));
  border: 1px solid var(--card-border);
  border-radius: 28px;
  padding: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

.hero-intro {
  flex: 1 1 420px;
}

.hero h1 {
  margin: 8px 0 12px;
  font-size: clamp(2rem, 4vw, 2.8rem);
}

.hero-copy {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 560px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.8rem;
  color: var(--muted);
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.badge {
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.9rem;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.badge.automation {
  background: rgba(34, 197, 94, 0.15);
  color: #9bebba;
}

.badge.model {
  background: rgba(59, 130, 246, 0.15);
  color: #9bc1ff;
}

.badge.dataset {
  background: rgba(249, 115, 22, 0.15);
  color: #ffcb9b;
}

.hero-meta {
  flex: 0 0 250px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.meta-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--card-border);
  border-radius: 18px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.meta-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.meta-value {
  font-size: 1.15rem;
}

.status-card #trainingStatus {
  font-weight: 600;
}

#trainingStatus.error {
  color: var(--error);
}

.content {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.section-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 28px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.section-header h2 {
  margin: 0;
  font-size: 1.5rem;
}

.section-header p {
  margin: 6px 0 0;
  color: var(--muted);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 18px;
}

.metric-card {
  border: 1px solid var(--card-border);
  border-radius: 18px;
  padding: 16px 18px;
  background: rgba(255, 255, 255, 0.02);
}

.metric-label {
  font-size: 0.95rem;
  color: var(--muted);
}

.metric-value {
  font-size: 1.8rem;
  font-weight: 600;
  margin-top: 6px;
}

.chart-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.chart-card {
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.02);
}

.chart-title {
  font-size: 1rem;
  color: var(--muted);
  margin-bottom: 12px;
}

.chart-container {
  min-height: 220px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px dashed rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.chart-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 8px;
}

.chart-error {
  color: var(--muted);
  font-size: 0.95rem;
}

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

.prediction-item {
  border: 1px solid var(--card-border);
  border-radius: 18px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.02);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.prediction-item.correct {
  border-color: rgba(34, 197, 94, 0.3);
  background: rgba(34, 197, 94, 0.08);
}

.prediction-item.incorrect {
  border-color: rgba(239, 68, 68, 0.3);
  background: rgba(239, 68, 68, 0.08);
}

.prediction-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.prediction-body {
  display: flex;
  justify-content: space-between;
  font-size: 1.2rem;
  font-weight: 600;
}

.images-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.image-card {
  border: 1px solid var(--card-border);
  border-radius: 18px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.02);
}

.image-card img {
  width: 100%;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
}

.image-caption {
  margin-top: 8px;
  font-size: 0.95rem;
  color: var(--muted);
}

.resource-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.resource-card {
  text-decoration: none;
  color: var(--text);
  border: 1px solid var(--card-border);
  border-radius: 18px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.02);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.resource-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.resource-title {
  font-weight: 600;
}

.resource-meta {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.9rem;
}

.no-data {
  color: var(--muted);
  text-align: center;
  padding: 24px;
  border-radius: 16px;
  border: 1px dashed rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.02);
}

.footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 900px) {
  .hero {
    flex-direction: column;
  }
  .hero-meta {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 12px;
  }
  .meta-card {
    flex: 1 1 calc(50% - 12px);
  }
}

@media (max-width: 600px) {
  .app-shell {
    padding: 20px 16px 48px;
  }
  .section-card {
    padding: 22px;
  }
  .prediction-body {
    flex-direction: column;
    gap: 6px;
    font-size: 1rem;
  }
  .hero-meta {
    flex-direction: column;
  }
  .meta-card {
    width: 100%;
  }
}