/**
 * Page Loader Styles - Impact Version
 * Shows death toll from curable diseases while page loads
 */

/* ========================================
   Page Loader - Impact Version
   ======================================== */

#page-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.6s ease-out, visibility 0.6s ease-out;
}

#page-loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-content {
  text-align: center;
  max-width: 800px;
  padding: 40px 20px;
}

/* Impact Message */
.impact-header {
  font-size: 18px;
  color: #94a3b8;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  font-weight: 500;
}

.death-counter {
  font-size: 72px;
  font-weight: 700;
  color: #ef4444;
  margin: 20px 0;
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 20px rgba(239, 68, 68, 0.3);
  animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { text-shadow: 0 0 20px rgba(239, 68, 68, 0.3); }
  50% { text-shadow: 0 0 30px rgba(239, 68, 68, 0.6); }
}

.impact-message {
  font-size: 24px;
  color: #e2e8f0;
  margin: 20px 0;
  line-height: 1.5;
}

.impact-subtext {
  font-size: 14px;
  color: #64748b;
  margin-top: 10px;
}

/* Gravestone Grid */
.gravestone-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(30px, 1fr));
  gap: 8px;
  max-width: 600px;
  margin: 30px auto;
  padding: 20px;
  min-height: 150px;
}

.gravestone {
  font-size: 28px;
  opacity: 0;
  animation: fadeIn 0.3s ease-out forwards;
  filter: grayscale(1);
  transform: scale(0);
}

.gravestone.show {
  transform: scale(1);
  opacity: 0.7;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: scale(0) translateY(-10px);
  }
  to {
    opacity: 0.7;
    transform: scale(1) translateY(0);
  }
}

/* Loading Spinner */
.loader-spinner {
  width: 40px;
  height: 40px;
  margin: 30px auto;
  border: 3px solid rgba(148, 163, 184, 0.2);
  border-top-color: #94a3b8;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Mobile Responsive */
@media (max-width: 768px) {
  .loader-content {
    padding: 20px 15px;
  }

  .impact-header {
    font-size: 14px;
  }

  .death-counter {
    font-size: 48px;
  }

  .impact-message {
    font-size: 18px;
  }

  .impact-subtext {
    font-size: 12px;
  }

  .gravestone-grid {
    gap: 6px;
    padding: 15px;
    min-height: 120px;
  }

  .gravestone {
    font-size: 24px;
  }
}

/* Extra small screens */
@media (max-width: 480px) {
  .death-counter {
    font-size: 36px;
  }

  .impact-message {
    font-size: 16px;
  }

  .gravestone {
    font-size: 20px;
  }

  .loader-spinner {
    width: 30px;
    height: 30px;
    margin: 20px auto;
  }
}

/* ========================================
   Hash Target Highlighting
   ======================================== */

@keyframes highlight-pulse {
  0% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.4); }
  70% { box-shadow: 0 0 0 10px rgba(37, 99, 235, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0); }
}

.callout.hash-target-highlight {
  animation: highlight-pulse 1.5s ease-out;
}

.hash-target-heading {
  background: linear-gradient(90deg, rgba(37, 99, 235, 0.1) 0%, transparent 100%);
  border-left: 3px solid #2563eb;
  padding-left: 8px;
  margin-left: -11px;
}

/* ========================================
   Uncertainty Toggle
   ======================================== */

#uncertainty-toggle {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1000;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 13px;
  font-family: system-ui, -apple-system, sans-serif;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

#uncertainty-toggle:hover {
  background: #f8fafc;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

#uncertainty-toggle .toggle-icon {
  font-size: 14px;
}

#uncertainty-toggle.ci-hidden {
  background: #fef3c7;
  border-color: #f59e0b;
}

body.hide-uncertainty .ci-range,
body.hide-uncertainty .uncertainty-range {
  display: none !important;
}

@media (prefers-color-scheme: dark) {
  #uncertainty-toggle {
    background: #1e293b;
    border-color: #334155;
    color: #e2e8f0;
  }

  #uncertainty-toggle:hover {
    background: #334155;
  }

  #uncertainty-toggle.ci-hidden {
    background: #78350f;
    border-color: #f59e0b;
  }
}

@media (max-width: 768px) {
  #uncertainty-toggle {
    bottom: 10px;
    right: 10px;
    padding: 6px 10px;
    font-size: 12px;
  }
}