/* ==========================================================================
   PARASANIT POLSKA - GŁÓWNY ARKUSZ STYLÓW CSS
   Wersja: 2.4 (Google Ads Compliant Edition)
   Design System: Emerald / Sage / Warm Amber Medical Authority
   ========================================================================== */

:root {
  --primary-950: #022c22;
  --primary-900: #064e3b;
  --primary-800: #065f46;
  --primary-700: #047857;
  --primary-600: #059669;
  --primary-500: #10b981;
  --primary-400: #34d399;
  --primary-100: #d1fae5;
  --primary-50: #ecfdf5;

  --amber-700: #b45309;
  --amber-600: #d97706;
  --amber-500: #f59e0b;
  --amber-100: #fef3c7;
  --amber-50: #fffbeb;

  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50: #f8fafc;
}

* {
  box-sizing: border-box;
}

body {
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  color: var(--slate-900);
  background-color: #f8faf9;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* KROK / KARTY QUIZU */
.step-card {
  display: none;
  opacity: 0;
  transform: translateY(16px) scale(0.98);
  transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1), transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.step-card.active {
  display: block;
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* OPCJE WYBORU W QUIZIE */
.quiz-choice-item {
  position: relative;
  transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  user-select: none;
}

.quiz-choice-item:hover {
  transform: translateY(-2px);
  border-color: var(--primary-500) !important;
  box-shadow: 0 12px 24px -6px rgba(5, 150, 105, 0.15);
}

.quiz-choice-item.selected {
  border-color: var(--primary-600) !important;
  background-color: var(--primary-50) !important;
  box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.2), 0 12px 24px -6px rgba(5, 150, 105, 0.18) !important;
}

.quiz-choice-item.selected .radio-circle {
  border-color: var(--primary-600) !important;
  background-color: var(--primary-600) !important;
  color: #ffffff !important;
}

.quiz-choice-item.selected .radio-circle i {
  display: inline-block !important;
}

/* WIBRACJA PRZY BRAKU ODPOWIEDZI */
@keyframes shakeAlert {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-6px); }
  40%, 80% { transform: translateX(6px); }
}

.shake-validation {
  animation: shakeAlert 0.4s ease-in-out;
  border-color: #ef4444 !important;
  box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.18) !important;
}

/* ANIMOWANY PULS BADANIA */
@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.9); }
}

.dot-pulse {
  animation: pulseDot 2s infinite ease-in-out;
}

/* LOADER ANALIZY BIOCHEMICZNEJ */
@keyframes scanSpinner {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.scan-spinner {
  border: 4px solid rgba(5, 150, 105, 0.15);
  border-top-color: var(--primary-600);
  border-radius: 50%;
  animation: scanSpinner 0.9s linear infinite;
}

/* PRZYCISKI CALL TO ACTION */
.btn-primary-cta {
  background: linear-gradient(135deg, #047857 0%, #065f46 50%, #064e3b 100%);
  transition: all 0.25s ease;
  box-shadow: 0 10px 20px -5px rgba(4, 120, 87, 0.4);
}

.btn-primary-cta:hover {
  background: linear-gradient(135deg, #059669 0%, #047857 50%, #064e3b 100%);
  box-shadow: 0 15px 30px -5px rgba(4, 120, 87, 0.55);
  transform: translateY(-2px);
}

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

/* TYPOGRAFIA NAUKOWA */
.font-display {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  letter-spacing: -0.02em;
}

/* STYLIZACJA CYTATÓW I PRZYPISÓW */
.citation-box {
  background-color: #f8fafc;
  border-left: 4px solid var(--primary-600);
  font-size: 0.825rem;
  line-height: 1.5;
  color: var(--slate-600);
}

/* PRZYCISKI ZWROTNE I NAWIGACJA */
.back-btn-hover:hover {
  color: var(--primary-700);
  background-color: var(--primary-50);
}