/* Upload Launchpad Design System */

.upload-container {
  min-height: 100vh;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
  position: relative;
  background: radial-gradient(circle at 50% 10%, #111827 0%, #07090e 100%);
  overflow-y: auto;
}

.upload-bg-glow {
  position: absolute;
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
  width: 650px;
  height: 450px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.12) 0%, rgba(59, 130, 246, 0.05) 50%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

.upload-card {
  position: relative;
  z-index: 1;
  max-width: 780px;
  width: 100%;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-cinematic);
  backdrop-filter: blur(20px);
}

.brand-header {
  text-align: center;
  margin-bottom: 32px;
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.25);
  color: var(--accent-cyan);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.brand-badge .pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
  animation: pulse 1.5s infinite;
}

.brand-title {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #fff;
  line-height: 1.2;
}

.brand-subtitle {
  margin-top: 10px;
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Dropzone */
.dropzone {
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-md);
  padding: 44px 28px;
  text-align: center;
  background: rgba(255, 255, 255, 0.015);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.dropzone:hover,
.dropzone.dragover {
  border-color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.04);
  box-shadow: 0 0 30px rgba(6, 182, 212, 0.15);
  transform: translateY(-2px);
}

.dropzone-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.dropzone:hover .dropzone-icon {
  transform: scale(1.12);
  color: #fff;
  border-color: var(--accent-cyan);
}

.dropzone-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 6px;
}

.dropzone-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

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

/* File Selected State */
.file-preview-card {
  margin-top: 24px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.file-info {
  display: flex;
  align-items: center;
  gap: 14px;
}

.file-icon {
  width: 44px;
  height: 44px;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-amber);
}

.file-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  max-width: 380px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-top: 2px;
}

/* Action Buttons */
.action-group {
  margin-top: 32px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn-primary {
  flex: 1;
  min-width: 220px;
  padding: 15px 24px;
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  color: #fff;
  font-size: 0.98rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  box-shadow: 0 10px 25px rgba(2, 132, 199, 0.3);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
  box-shadow: 0 14px 35px rgba(2, 132, 199, 0.45);
  transform: translateY(-2px);
}

.btn-secondary {
  padding: 15px 24px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-strong);
  color: #fff;
}

/* Feature Badges Grid */
.features-grid {
  margin-top: 36px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-pill {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: left;
}

.feature-pill-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 4px;
}

.feature-pill-desc {
  font-size: 0.76rem;
  color: var(--text-muted);
  line-height: 1.4;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

@media (max-width: 640px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
  .action-group {
    flex-direction: column;
  }
}