/* Theme Colors and Design Tokens */
:root {
  --primary-color: #2563EB;
  --secondary-color: #1E40AF;
  --accent-color: #F59E0B;
  --bg-color: #F1F5F9;
  --card-bg: #FFFFFF;
  --text-dark: #0F172A;
  --text-muted: #64748B;
  --border-radius: 1rem;
}

body {
  font-family: 'Outfit', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-dark);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header Navbar Styling */
.navbar {
  background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
  border-bottom: 2px solid rgba(255, 255, 255, 0.1);
}

.navbar-brand {
  letter-spacing: -0.5px;
}

/* Premium Card Design */
.main-card {
  border-radius: var(--border-radius);
  background: var(--card-bg);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08) !important;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card-header-gradient {
  background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
  border-bottom: none;
}

/* Drag & Drop Zone */
.drop-zone {
  border: 2px dashed #CBD5E1;
  background-color: #F8FAFC;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--primary-color);
  background-color: rgba(37, 99, 235, 0.04);
  transform: translateY(-2px);
}

.drop-zone.dragover {
  border-style: solid;
}

.cursor-pointer {
  cursor: pointer;
}

.icon-circle {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease;
}

.drop-zone:hover .icon-circle {
  transform: scale(1.1);
}

.bg-blue-light {
  background-color: rgba(37, 99, 235, 0.1);
}

/* Buttons and Interactions */
.btn-primary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  transition: all 0.2s ease;
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--secondary-color);
  border-color: var(--secondary-color);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
  transform: translateY(-1px);
}

.btn-primary:disabled {
  background-color: #94A3B8;
  border-color: #94A3B8;
}

.btn-success {
  background-color: #10B981;
  border-color: #10B981;
}

.btn-success:hover {
  background-color: #059669;
  border-color: #059669;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
}

/* Progress bar customization */
.progress {
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.05);
}

/* Footer background */
.footer {
  background-color: #0F172A;
  color: #94A3B8;
}

.footer p {
  color: #64748B;
}

/* Animations */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.spinning-icon {
  animation: spin 2s linear infinite;
}