:root {
  --morlan-blue: #0162B1;
  --morlan-blue-dark: #004d8c;
  --morlan-blue-light: #e8f3fb;
  --morlan-blue-subtle: #f0f7fc;
  --morlan-accent: #0284c7;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --border-color: #e2e8f0;
  --card-bg: #ffffff;
  --card-shadow: 0 10px 25px -5px rgba(1, 98, 177, 0.07), 0 8px 10px -6px rgba(1, 98, 177, 0.04);
  --card-shadow-hover: 0 20px 30px -10px rgba(1, 98, 177, 0.12), 0 10px 15px -5px rgba(1, 98, 177, 0.06);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background-color: #f8fafc;
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
}

/* Glassmorphism subtle headers */
.glass-header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* Smooth Focus Ring */
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--morlan-blue) !important;
  box-shadow: 0 0 0 3px rgba(1, 98, 177, 0.15) !important;
}

/* Question Cards */
.question-card {
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid var(--border-color);
  background: #ffffff;
}

.question-card:hover {
  border-color: #cbd5e1;
  box-shadow: var(--card-shadow);
}

.question-card.active-card {
  border-color: #93c5fd;
  box-shadow: 0 0 0 1px #93c5fd, var(--card-shadow);
}

.question-card.completed-card {
  border-left: 4px solid var(--morlan-blue);
}

/* Custom Radio Card */
.radio-card-label {
  display: flex;
  align-items: center;
  padding: 0.85rem 1.15rem;
  border: 1.5px solid var(--border-color);
  border-radius: 0.75rem;
  cursor: pointer;
  transition: all 0.2s ease;
  background-color: #ffffff;
  user-select: none;
}

.radio-card-label:hover {
  border-color: #93c5fd;
  background-color: var(--morlan-blue-subtle);
  transform: translateY(-1px);
}

.radio-card-input:checked + .radio-card-label {
  border-color: var(--morlan-blue);
  background-color: var(--morlan-blue-light);
  color: var(--morlan-blue-dark);
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(1, 98, 177, 0.12);
}

.radio-custom-indicator {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid #cbd5e1;
  margin-right: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.radio-card-input:checked + .radio-card-label .radio-custom-indicator {
  border-color: var(--morlan-blue);
  background-color: var(--morlan-blue);
}

.radio-custom-indicator::after {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #ffffff;
  opacity: 0;
  transform: scale(0.5);
  transition: all 0.2s ease;
}

.radio-card-input:checked + .radio-card-label .radio-custom-indicator::after {
  opacity: 1;
  transform: scale(1);
}

/* Drag and Drop Item */
.ranking-item {
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
  cursor: grab;
  user-select: none;
}

.ranking-item:active {
  cursor: grabbing;
}

.ranking-item.dragging {
  opacity: 0.45;
  border: 2px dashed var(--morlan-blue);
  transform: scale(0.98);
}

.ranking-item.drag-over {
  border-color: var(--morlan-blue);
  background-color: var(--morlan-blue-light);
  transform: translateY(2px);
}

/* Badge numbering for Rank */
.rank-badge {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background-color: #f1f5f9;
  color: #475569;
  font-weight: 700;
  font-size: 0.825rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.ranking-item:nth-child(1) .rank-badge {
  background-color: var(--morlan-blue);
  color: #ffffff;
}

.ranking-item:nth-child(2) .rank-badge {
  background-color: #0284c7;
  color: #ffffff;
}

.ranking-item:nth-child(3) .rank-badge {
  background-color: #38bdf8;
  color: #0f172a;
}

/* Button Animations */
.btn-primary {
  background-color: var(--morlan-blue);
  color: #ffffff;
  transition: all 0.25s ease;
  box-shadow: 0 4px 14px rgba(1, 98, 177, 0.35);
}

.btn-primary:hover {
  background-color: var(--morlan-blue-dark);
  box-shadow: 0 6px 20px rgba(1, 98, 177, 0.45);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

/* Progress bar shimmer */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.progress-fill {
  background: linear-gradient(90deg, #0162B1 0%, #38bdf8 50%, #0162B1 100%);
  background-size: 200% 100%;
  animation: shimmer 3s infinite linear;
  transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.animate-fade-in {
  animation: fadeIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Checkmark animation */
@keyframes stroke {
  100% { stroke-dashoffset: 0; }
}

@keyframes scale {
  0%, 100% { transform: none; }
  50% { transform: scale3d(1.1, 1.1, 1); }
}

.checkmark-circle {
  stroke-dasharray: 166;
  stroke-dashoffset: 166;
  stroke-width: 2;
  stroke-miterlimit: 10;
  stroke: var(--morlan-blue);
  fill: none;
  animation: stroke 0.6s cubic-bezier(0.65, 0, 0.45, 1) forwards;
}

.checkmark-check {
  transform-origin: 50% 50%;
  stroke-dasharray: 48;
  stroke-dashoffset: 48;
  animation: stroke 0.4s cubic-bezier(0.65, 0, 0.45, 1) 0.6s forwards;
}