/* --- ZÁKLADNÉ NASTAVENIA --- */
:root {
  --blue-main: #0b4da2;
  --blue-dark: #083a7a;
  --yellow-train: #ffcc00;
  --gray-bg: #f4f7f9;
  --text-dark: #333;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

body {
  font-family: 'Segoe UI', Roboto, sans-serif;
  background-color: var(--gray-bg);
  margin: 0;
  padding: 0;
  color: var(--text-dark);
}

/* --- HEADER --- */
.school-header {
  background-color: var(--blue-main);
  color: white;
  padding: 15px 5%;
  display: flex;
  align-items: center;
  box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.school-logo {
  height: 50px;
  margin-right: 20px;
  border-radius: 5px;
}

.header-title {
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ---  QUIZ BOX --- */
#quiz-box {
  max-width: 800px;
  margin: 40px auto;
  background: white;
  padding: 40px;
  border-radius: 20px;
  box-shadow: var(--shadow);
}

/* ---  WELCOME SCREEN --- */
#welcome-screen {
  text-align: center;
  animation: fadeIn 0.6s ease-out;
}

.welcome-badge {
  display: inline-block;
  background: var(--yellow-train);
  color: #000;
  padding: 6px 18px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 800;
  margin-bottom: 20px;
}

#welcome-screen h1 {
  font-size: 2.8rem;
  color: var(--blue-main);
  margin-bottom: 15px;
}

.welcome-text {
  font-size: 1.1rem;
  color: #666;
  max-width: 550px;
  margin: 0 auto 35px;
  line-height: 1.6;
}

/* --- TLAČIDLÁ A INTERAKCIA --- */
#start-btn, #next-btn, .result-item button {
  background: linear-gradient(135deg, var(--blue-main) 0%, var(--blue-dark) 100%);
  color: white;
  border: none;
  padding: 18px 45px;
  font-size: 1.1rem;
  font-weight: bold;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 10px 20px rgba(11, 77, 162, 0.2);
}

/* REAKTÍVNY HOVER EFEKT */
#start-btn:hover, #next-btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 15px 25px rgba(11, 77, 162, 0.3);
  filter: brightness(1.1);
}

#start-btn:active, #next-btn:active {
  transform: translateY(-1px);
}

/* --- TESTOVACIE MOŽNOSTI --- */
.option-btn {
  display: block;
  width: 100%;
  padding: 15px 20px;
  margin: 10px 0;
  background-color: #fff;
  border: 2px solid #eee;
  border-radius: 12px;
  text-align: left;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.option-btn:hover {
  border-color: var(--blue-main);
  background-color: #f0f6ff;
  transform: translateX(8px);
}

.option-btn.selected {
  background-color: var(--blue-main);
  color: white;
  border-color: var(--blue-main);
}

/* --- MODÁLNE OKNO  --- */
.hidden {
  display: none !important;
}

.modal {
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}

.modal-content {
  background: white;
  padding: 40px;
  border-radius: 20px;
  width: 90%;
  max-width: 500px;
  position: relative;
  text-align: center;
  box-shadow: 0 20px 50px rgba(0,0,0,0.3);
}

.close-modal {
  position: absolute;
  right: 25px;
  top: 15px;
  font-size: 35px;
  cursor: pointer;
  color: #aaa;
  transition: color 0.2s;
}

.close-modal:hover {
  color: var(--blue-main);
}

/* O nás hover */
#about-btn {
  transition: all 0.3s ease;
}

#about-btn:hover {
  color: var(--yellow-train) !important;
  transform: scale(1.05);
}

/* --- ANIMÁCIE --- */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

/* RESPONZIVITA */
@media (max-width: 600px) {
  #quiz-box { margin: 10px; padding: 20px; }
  #welcome-screen h1 { font-size: 2rem; }
}