/**
 * NephroApp Medical Terminology Callout System
 * Modern, interactive, lazy-loaded callouts for Drugs, Trials, and Definitions.
 */

:root {
  --med-drug-color: #0d9488;
  --med-drug-bg: rgba(13, 148, 136, 0.10);
  --med-drug-border: rgba(13, 148, 136, 0.55);
  
  --med-trial-color: #4f46e5;
  --med-trial-bg: rgba(79, 70, 229, 0.10);
  --med-trial-border: rgba(79, 70, 229, 0.55);
  
  --med-def-color: #d97706;
  --med-def-bg: rgba(217, 119, 6, 0.10);
  --med-def-border: rgba(217, 119, 6, 0.55);

  --med-card-bg: rgba(255, 255, 255, 0.97);
  --med-card-border: rgba(226, 232, 240, 0.9);
  --med-card-text: #1e293b;
  --med-card-muted: #64748b;
  --med-card-shadow: 0 20px 40px -12px rgba(15, 23, 42, 0.22), 0 0 0 1px rgba(15, 23, 42, 0.06);
}

.dark, [data-theme="dark"], body.dark-mode {
  --med-drug-color: #2dd4bf;
  --med-drug-bg: rgba(45, 212, 191, 0.15);
  --med-drug-border: rgba(45, 212, 191, 0.6);
  
  --med-trial-color: #818cf8;
  --med-trial-bg: rgba(129, 140, 248, 0.15);
  --med-trial-border: rgba(129, 140, 248, 0.6);
  
  --med-def-color: #fbbf24;
  --med-def-bg: rgba(251, 191, 36, 0.15);
  --med-def-border: rgba(251, 191, 36, 0.6);

  --med-card-bg: rgba(17, 24, 39, 0.96);
  --med-card-border: rgba(51, 65, 85, 0.85);
  --med-card-text: #f1f5f9;
  --med-card-muted: #94a3b8;
  --med-card-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 255, 255, 0.08);
}

/* Inline Term Highlights */
.med-callout-term {
  background: transparent;
  color: inherit;
  cursor: help;
  display: inline;
  padding: 0 2px 1px 2px;
  border-radius: 4px;
  text-decoration: underline dotted 1.5px;
  text-underline-offset: 3.5px;
  transition: background-color 0.18s ease, text-decoration-color 0.18s ease;
  font-weight: inherit;
}

.med-callout-term:focus-visible {
  outline: 2px solid var(--med-trial-color);
  outline-offset: 2px;
}

/* Drug Highlights */
.med-callout-drug {
  text-decoration-color: var(--med-drug-border);
}
.med-callout-drug:hover,
.med-callout-drug.med-active {
  background-color: var(--med-drug-bg);
  text-decoration-color: var(--med-drug-color);
}

/* Trial Highlights */
.med-callout-trial {
  text-decoration-color: var(--med-trial-border);
}
.med-callout-trial:hover,
.med-callout-trial.med-active {
  background-color: var(--med-trial-bg);
  text-decoration-color: var(--med-trial-color);
}

/* Definition Highlights */
.med-callout-definition {
  text-decoration-color: var(--med-def-border);
}
.med-callout-definition:hover,
.med-callout-definition.med-active {
  background-color: var(--med-def-bg);
  text-decoration-color: var(--med-def-color);
}

/* Floating Popover Container */
.med-popover {
  position: fixed;
  z-index: 99999;
  top: 0;
  left: 0;
  width: 420px;
  max-width: calc(100vw - 28px);
  max-height: 520px;
  display: flex;
  flex-direction: column;
  background: var(--med-card-bg);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid var(--med-card-border);
  border-radius: 20px;
  box-shadow: var(--med-card-shadow);
  color: var(--med-card-text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(6px) scale(0.97);
  transition: opacity 0.22s cubic-bezier(0.16, 1, 0.3, 1), transform 0.22s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.22s;
  overflow: hidden;
}

.med-popover.med-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

/* Top Accent Line */
.med-popover::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3.5px;
  background: linear-gradient(90deg, var(--accent-start, #0d9488), var(--accent-end, #14b8a6));
  z-index: 10;
}

.med-popover.med-theme-drug {
  --accent-start: #0d9488;
  --accent-end: #10b981;
}

.med-popover.med-theme-trial {
  --accent-start: #4f46e5;
  --accent-end: #8b5cf6;
}

.med-popover.med-theme-definition {
  --accent-start: #d97706;
  --accent-end: #f59e0b;
}

/* Popover Header */
.med-popover-header {
  padding: 16px 18px 12px 18px;
  border-bottom: 1px solid var(--med-card-border);
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  background: rgba(248, 250, 252, 0.5);
}

.dark .med-popover-header,
[data-theme="dark"] .med-popover-header,
body.dark-mode .med-popover-header {
  background: rgba(30, 41, 59, 0.4);
}

.med-header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.med-badge-type {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 9px;
  border-radius: 999px;
}

.med-theme-drug .med-badge-type {
  background: rgba(13, 148, 136, 0.15);
  color: var(--med-drug-color);
  border: 1px solid rgba(13, 148, 136, 0.3);
}

.med-theme-trial .med-badge-type {
  background: rgba(79, 70, 229, 0.15);
  color: var(--med-trial-color);
  border: 1px solid rgba(79, 70, 229, 0.3);
}

.med-theme-definition .med-badge-type {
  background: rgba(217, 119, 6, 0.15);
  color: var(--med-def-color);
  border: 1px solid rgba(217, 119, 6, 0.3);
}

.med-header-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.med-close-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--med-card-muted);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  line-height: 1;
  transition: all 0.15s ease;
}

.med-close-btn:hover {
  background: rgba(0, 0, 0, 0.08);
  color: var(--med-card-text);
}

.dark .med-close-btn:hover,
body.dark-mode .med-close-btn:hover {
  background: rgba(255, 255, 255, 0.12);
}

.med-popover-title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.3;
  margin: 0;
  color: var(--med-card-text);
}

.med-popover-subtitle {
  font-size: 0.8rem;
  color: var(--med-card-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

/* Verdict Badges */
.med-verdict-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.med-verdict-win {
  background: rgba(16, 185, 129, 0.15);
  color: #059669;
  border: 1px solid rgba(16, 185, 129, 0.35);
}

.med-verdict-null {
  background: rgba(100, 116, 139, 0.15);
  color: #64748b;
  border: 1px solid rgba(100, 116, 139, 0.35);
}

.med-verdict-harm {
  background: rgba(225, 29, 72, 0.15);
  color: #e11d48;
  border: 1px solid rgba(225, 29, 72, 0.35);
}

/* Popover Body */
.med-popover-body {
  padding: 16px 18px;
  overflow-y: auto;
  overscroll-behavior: contain;
  display: flex;
  flex-direction: column;
  gap: 14px;
  font-size: 0.875rem;
  line-height: 1.55;
}

/* Custom Scrollbar */
.med-popover-body::-webkit-scrollbar {
  width: 5px;
}
.med-popover-body::-webkit-scrollbar-track {
  background: transparent;
}
.med-popover-body::-webkit-scrollbar-thumb {
  background: rgba(150, 150, 150, 0.25);
  border-radius: 10px;
}

/* Section Box */
.med-section-box {
  background: rgba(241, 245, 249, 0.6);
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: 12px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.dark .med-section-box,
[data-theme="dark"] .med-section-box,
body.dark-mode .med-section-box {
  background: rgba(30, 41, 59, 0.6);
  border-color: rgba(51, 65, 85, 0.7);
}

.med-section-label {
  font-size: 0.73rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--med-card-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.med-section-content {
  font-size: 0.875rem;
  color: var(--med-card-text);
}

/* Drug Brands Tags */
.med-brand-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.med-brand-tag {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 6px;
  background: rgba(13, 148, 136, 0.1);
  color: var(--med-drug-color);
  border: 1px solid rgba(13, 148, 136, 0.25);
}

/* Dose & Renal Guidance */
.med-alert-box {
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 0.84rem;
  line-height: 1.45;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.med-alert-renal {
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.35);
  color: #0369a1;
}

.dark .med-alert-renal,
body.dark-mode .med-alert-renal {
  background: rgba(56, 189, 248, 0.15);
  color: #7dd3fc;
  border-color: rgba(56, 189, 248, 0.3);
}

.med-alert-monitoring {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.35);
  color: #b45309;
}

.dark .med-alert-monitoring,
body.dark-mode .med-alert-monitoring {
  background: rgba(245, 158, 11, 0.15);
  color: #fcd34d;
  border-color: rgba(245, 158, 11, 0.3);
}

/* Egyptian Arabic Witty Memory Hook Box (فزورة / طريقة حفظ ممتعة) */
.med-egyptian-mnemonic-card {
  background: linear-gradient(135deg, rgba(254, 243, 199, 0.75) 0%, rgba(253, 230, 138, 0.45) 100%);
  border: 1.5px solid rgba(245, 158, 11, 0.5);
  border-radius: 14px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  direction: rtl;
  text-align: right;
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.1);
}

.dark .med-egyptian-mnemonic-card,
[data-theme="dark"] .med-egyptian-mnemonic-card,
body.dark-mode .med-egyptian-mnemonic-card {
  background: linear-gradient(135deg, rgba(120, 53, 15, 0.45) 0%, rgba(180, 83, 9, 0.25) 100%);
  border-color: rgba(245, 158, 11, 0.4);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
}

.med-egyptian-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: #92400e;
  display: flex;
  align-items: center;
  gap: 6px;
}

.dark .med-egyptian-title,
body.dark-mode .med-egyptian-title {
  color: #fde68a;
}

.med-egyptian-text {
  font-size: 0.86rem;
  color: #78350f;
  line-height: 1.6;
  white-space: pre-line;
  font-weight: 500;
}

.dark .med-egyptian-text,
body.dark-mode .med-egyptian-text {
  color: #fef3c7;
}

/* Popover Footer */
.med-popover-footer {
  padding: 10px 18px;
  background: rgba(248, 250, 252, 0.7);
  border-top: 1px solid var(--med-card-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.78rem;
}

.dark .med-popover-footer,
body.dark-mode .med-popover-footer {
  background: rgba(30, 41, 59, 0.6);
}

.med-external-link {
  color: var(--med-card-muted);
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color 0.15s ease;
}

.med-external-link:hover {
  color: var(--med-trial-color);
  text-decoration: underline;
}

/* Loading Shimmer Skeleton */
.med-skeleton-line {
  height: 14px;
  background: linear-gradient(90deg, rgba(200, 200, 200, 0.2) 25%, rgba(200, 200, 200, 0.4) 50%, rgba(200, 200, 200, 0.2) 75%);
  background-size: 200% 100%;
  animation: med-shimmer 1.4s infinite;
  border-radius: 6px;
  margin-bottom: 8px;
}

.dark .med-skeleton-line,
body.dark-mode .med-skeleton-line {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.05) 25%, rgba(255, 255, 255, 0.12) 50%, rgba(255, 255, 255, 0.05) 75%);
  background-size: 200% 100%;
}

@keyframes med-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Mobile Responsiveness */
@media (max-width: 640px) {
  .med-popover {
    width: calc(100vw - 20px) !important;
    left: 10px !important;
    max-height: 80vh;
  }
}