@font-face {
  font-family: 'FCC Typo';
  src: url('/assets/fonts/fccTYPO-Regular.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
}

@font-face {
  font-family: 'FCC Typo';
  src: url('/assets/fonts/fccTYPO-Bold.ttf') format('truetype');
  font-weight: bold;
  font-style: normal;
}

* {
  box-sizing: border-box;
}

body {
  font-family: 'FCC Typo', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(180deg, #3a7bd5 0%, #00d2ff 40%, #43e97b 80%, #134e3a 100%);
  min-height: 100vh;
  padding: 2rem;
  margin: 0;
  color: #333;
  line-height: 1.6;
  padding-bottom: 5rem;
}

h1 {
  text-align: center;
  font-size: 2.5rem;
  font-weight: bold;
  color: white;
  margin-bottom: 3rem;
  text-shadow: 0 2px 4px rgba(0,0,0,0.3);
  letter-spacing: -0.5px;
}

h2 {
  font-size: 2.4rem;
  font-weight: bold;
  color: #2d3748;
  margin: -0.5rem 0 1rem 0;
  position: relative;
}

h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, #667eea, #764ba2);
  border-radius: 2px;
}

h3 {
  font-size: 1.4rem;
  font-weight: bold;
  color: #4a5568;
  margin-bottom: 1rem;
}

h4 {
  font-size: 1.2rem;
  font-weight: bold;
  color: #2d3748;
  margin-bottom: 0.8rem;
}

.study {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: 1.5rem 2rem 2rem 2rem;
  margin-bottom: 3rem;
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  transition: all 0.3s ease;
  will-change: transform;
}

.study:hover {
  transform: translate3d(0, -5px, 0);
  box-shadow: 0 25px 50px rgba(0,0,0,0.15);
}

.methods {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-top: 1.5rem;
  justify-content: center;
  align-items: stretch;
  padding-bottom: 1rem;
}

.method {
  flex: 1 1 250px;
  min-width: 250px;
  max-width: 350px;
  background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
  padding: 1.5rem;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.3);
  box-shadow: 0 8px 25px rgba(0,0,0,0.08);
  transition: all 0.3s ease;
  position: relative;
  margin-bottom: 1.5rem;
}

.method::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #667eea, #764ba2);
}

.method:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.12);
}

.method img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  transition: all 0.3s ease;
  cursor: pointer;
}

.method img:hover {
  transform: scale(1.02);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.comparison-indicator {
  position: absolute;
  top: 5px;
  right: 5px;
  background: rgba(102, 126, 234, 0.9);
  color: white;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: bold;
  pointer-events: none;
  z-index: 10;
  backdrop-filter: blur(5px);
}

button {
  margin-top: 1.5rem;
  padding: 1rem 2.5rem;
  background: linear-gradient(90deg, #3a7bd5 0%, #00d2ff 60%, #43e97b 100%);
  color: white;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  font-size: 1.1rem;
  font-weight: bold;
  transition: all 0.3s ease;
  display: block;
  margin-left: auto;
  margin-right: auto;
  box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
  position: relative;
  overflow: hidden;
}

button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

button:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 25px rgba(102, 126, 234, 0.4);
}

button:hover::before {
  left: 100%;
}

.overlay, .image-overlay {
  display: none;
  position: fixed;
  z-index: 9999;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.9);
  backdrop-filter: blur(5px);
}
.overlay iframe {
  position: absolute;
  top: 5%; left: 5%;
  width: 90%; height: 90%;
  border: none;
  background: white;
  border-radius: 8px;
}
.overlay-close, .image-overlay-close {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 2rem;
  color: white;
  cursor: pointer;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(10px);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  border: 1px solid rgba(255,255,255,0.1);
  z-index: 10002;
}
.overlay-close:hover, .image-overlay-close:hover {
  background: rgba(0,0,0,0.7);
  transform: scale(1.1);
}
.image-overlay-content {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  max-width: 98%;
  max-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.image-overlay-content img {
  max-width: 100%;
  max-height: 90vh;
  width: auto;
  height: auto;
  object-fit: contain;
}
.nav-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 3rem;
  color: white;
  cursor: pointer;
  user-select: none;
  background: rgba(0,0,0,0.5);
  padding: 10px;
  border-radius: 50%;
  transition: background 0.3s;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.nav-arrow:hover {
  background: rgba(0,0,0,0.8);
}
.nav-left { left: 10px; }
.nav-right { right: 10px; }
.nav-up, .nav-down {
  left: 50%;
  transform: translateX(-50%);
}
.nav-up { top: 10px; }
.nav-down { bottom: 10px; }
.method-indicator {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.8);
  color: white;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: bold;
  z-index: 10001;
}
.nav-label {
  position: absolute;
  font-size: 0.8rem;
  color: white;
  background: rgba(0,0,0,0.7);
  padding: 5px;
  border-radius: 3px;
  white-space: nowrap;
}
.nav-left .nav-label { right: 100%; margin-right: 10px; }
.nav-right .nav-label { left: 100%; margin-left: 10px; }
.nav-up .nav-label { bottom: 100%; margin-bottom: 10px; }
.nav-down .nav-label { top: 100%; margin-top: 10px; }
.nav-buttons {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 20px;
  z-index: 10000;
}
.nav-button {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  color: #ff4444;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  cursor: pointer;
  transition: all 0.3s ease;
  user-select: none;
  box-shadow: 0 8px 20px rgba(0,0,0,0.2);
}
.nav-button:hover {
  background: rgba(255,255,255,0.2);
  transform: scale(1.1);
  box-shadow: 0 12px 25px rgba(0,0,0,0.3);
}
.nav-button-label {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.8);
  backdrop-filter: blur(10px);
  color: white;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.8rem;
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  border: 1px solid rgba(255,255,255,0.1);
}
.nav-button:hover .nav-button-label {
  opacity: 1;
}
.overview-container {
  position: relative;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  cursor: pointer;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 12px 30px rgba(0,0,0,0.15);
}
.overview-image {
  width: 100%;
  height: auto;
  border-radius: 16px;
  transition: all 0.3s ease;
}
.overview-image.hidden {
  opacity: 0;
  position: absolute;
  top: 0;
  left: 0;
}
.overview-image.visible {
  opacity: 1;
}
.overview-container:hover .overview-image.visible {
  opacity: 1;
}
.overview-container:hover .overview-image.hidden {
  opacity: 0;
}

/* Responsive design for mobile devices */
@media (max-width: 1024px) {
  .methods {
    gap: 1rem;
  }
  .method {
    min-width: 180px;
    max-width: 100%;
    padding: 1rem;
  }
}
@media (max-width: 768px) {
  .methods {
    flex-direction: column;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: stretch;
  }
  .method {
    flex: none;
    width: 100%;
    min-width: auto;
    max-width: 100%;
    margin-bottom: 1rem;
  }
  .tables-mobile-title {
    display: block;
    font-size: 1rem;
    font-weight: normal;
    color: #2d3748;
    margin-bottom: 0.7rem;
    margin-top: 0.3rem;
    text-align: center;
    letter-spacing: 0.01em;
    background: none !important;
    padding: 0 !important;
    box-shadow: none !important;
  }
}

@media (max-width: 480px) {
  body {
    padding: 0.5rem;
  }
  
  .nav-buttons {
    gap: 5px;
  }
  
  .nav-button {
    width: 45px;
    height: 45px;
    font-size: 1rem;
  }
  
  .method-indicator {
    font-size: 0.9rem;
    padding: 6px 12px;
  }
  
  h2 {
    font-size: 1.3rem;
  }
}

.study-nav {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.study-nav a {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  color: white;
  text-decoration: none;
  padding: 0.8rem 1.5rem;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.2);
  transition: all 0.3s ease;
  font-weight: 500;
}

.study-nav a:hover {
  background: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}

.study-nav a.active {
  background: rgba(255,255,255,0.3);
  border-color: rgba(255,255,255,0.4);
}

.study-nav a.home {
  background: linear-gradient(90deg, #5fa8d3 0%, #64d088 100%);
}

.tables-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1rem;
}

.table-item {
  background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
  padding: 1rem;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.3);
  box-shadow: 0 8px 25px rgba(0,0,0,0.08);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.table-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #667eea, #764ba2);
}

.table-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.12);
}

.table-item img {
  max-width: 100%;
  border-radius: 8px;
  transition: all 0.3s ease;
  cursor: pointer;
}

.table-item img:hover {
  transform: scale(1.02);
  box-shadow: 0 6px 15px rgba(0,0,0,0.1);
}

.tables-overlay-content {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  overflow-y: auto;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  border-radius: 0;
  padding: 2rem;
  box-shadow: none;
}

.tables-overlay-content .tables-container {
  gap: 2rem;
  margin-top: 0;
  max-width: 1200px;
  margin: 0 auto;
}

.tables-overlay-content .table-item {
  background: white;
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

@media (max-width: 768px) {
  .tables-overlay-content {
    padding: 1rem;
  }
  
  .tables-overlay-content .tables-container {
    gap: 1rem;
    max-width: 100%;
  }
  
  .tables-overlay-content .table-item {
    padding: 1rem;
  }
}

#tablesOverlay .nav-buttons {
  display: none;
}

/* Základní styly pro bubliny */
.bubble {
  position: fixed;
  top: 20px;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  border-radius: 50%;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 2px solid rgba(102, 126, 234, 0.3);
  box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

.bubble:hover {
  transform: scale(1.1);
  border-color: rgba(102, 126, 234, 0.6);
  box-shadow: 0 12px 25px rgba(0,0,0,0.15);
}

.bubble-icon {
  font-size: 2rem;
}

.bubble-content {
  position: absolute;
  top: 100%;
  width: 350px;
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(15px);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 20px 40px rgba(0,0,0,0.15);
  border: 1px solid rgba(255,255,255,0.2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  z-index: 1001;
}

.bubble:hover .bubble-content {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.bubble-content h4 {
  margin: 0 0 1rem 0;
  font-size: 1.1rem;
  font-weight: bold;
}

.bubble-content ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.bubble-content li {
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  line-height: 1.4;
  color: #4a5568;
}

.bubble-content strong {
  color: #667eea;
  font-weight: bold;
}

/* Specifické styly pro info bublinu */
.info-bubble {
  right: 20px;
}

.info-icon {
  color: #667eea;
}

.info-content {
  left: auto;
  right: 0;
  width: 50vw;
  max-width: 95vw;
  min-width: unset;
  box-sizing: border-box;
  transform: translateX(0);
}

.info-content h4 {
  color: #2d3748;
}

/* Specifické styly pro help bublinu */
.help-bubble {
  left: 20px;
}

.help-icon {
  color: #3b82f6;
}

.help-content {
  left: 0;
  width: 40vw;
  max-width: 95vw;
  min-width: unset;
  box-sizing: border-box;
  transform: translateX(0);
}

.help-content h4 {
  color: #764ba2;
}

.help-content ul {
  padding: 0 0 0 1.2em;
  list-style: disc;
}

.help-content li {
  font-size: 0.95rem;
}

/* Mobilní styly */
@media (max-width: 768px) {
  .bubble {
    top: 10px;
    width: 44px;
    height: 44px;
    z-index: 10000;
  }
  .help-bubble { left: 10px; }
  .info-bubble { right: 10px; }

  .bubble-icon {
    font-size: 1.1rem;
    line-height: 1;
  }

  .bubble-content {
    width: 180px;
    padding: 0.7rem;
    z-index: 10001;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 0.8rem;
    left: 0;
    right: 0;
  }
  .bubble-content h4 {
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
  }
  .bubble-content li {
    font-size: 0.7rem;
    margin-bottom: 0.3rem;
  }
  
  /* Na mobilu zrušit hover efekty */
  .bubble:hover .bubble-content {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
  }
  
  /* Třída pro zobrazení na mobilu */
  .bubble-content.mobile-visible {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
    pointer-events: auto !important;
  }
  
  /* Na mobilu nastavit výchozí display na none */
  .bubble-content {
    display: none;
  }
  
  /* Mobilní overlay - obrázek přes celou šířku */
  .image-overlay-content {
    max-width: 100%;
    max-height: 85vh;
    padding: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .image-overlay-content img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    max-width: 100vw;
    max-height: 85vh;
  }
  
  /* Specifické pozicování pro info-content na mobilu */
  .info-content {
    left: auto;
    right: 0;
    width: 40vw;
    max-width: 95vw;
    min-width: unset;
    box-sizing: border-box;
    transform: translateX(0);
  }

  /* Větší mezera pod obsahem kvůli footeru */
  body {
    padding-bottom: 5rem;
  }
}

/* === Konsolidované styly obrázků === */
.img-responsive,
.overview-image,
.image-overlay-content img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  cursor: pointer;
  will-change: transform;
  display: block;
}
.img-responsive[loading="lazy"],
.overview-image[loading="lazy"],
.image-overlay-content img[loading="lazy"] {
  loading: lazy;
}
.overview-image:hover,
.image-overlay-content img:hover {
  transform: scale(1.02);
  box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}
/* === Konsolidované styly tlačítek === */
button,
.nav-button,
.overlay-close,
.image-overlay-close {
  border-radius: 12px;
  transition: all 0.3s ease;
  box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
  font-weight: bold;
  cursor: pointer;
}
button:hover,
.nav-button:hover,
.overlay-close:hover,
.image-overlay-close:hover {
  box-shadow: 0 12px 25px rgba(102, 126, 234, 0.4);
  transform: scale(1.05);
}

.tables-mobile-title {
  display: block;
  font-size: 1rem;
  font-weight: normal;
  color: #2d3748;
  margin-bottom: 0.7rem;
  margin-top: 0.3rem;
  text-align: center;
  letter-spacing: 0.01em;
  background: none !important;
  padding: 0 !important;
  box-shadow: none !important;
}

@media (min-width: 769px) {
  .tables-mobile-title {
    font-size: 1.5rem;
    font-weight: bold;
    text-align: center;
    margin-bottom: 1.2rem;
    margin-top: 0.7rem;
  }
}

/* === Footer styly === */
footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  backdrop-filter: blur(16px) brightness(1.1);
  border-top: 1px solid rgba(255,255,255,0.2);
  padding: 0.7rem 2rem;
  text-align: center;
  color: #000;
  font-size: 1.2rem;
  font-weight: 500;
  box-shadow: 0 -4px 12px rgba(0,0,0,0.1);
}

footer p {
  margin: 0;
  text-shadow: 0 1px 2px rgba(255,255,255,0.3);
}