/* Globální reset a moderní typografie */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: #f4f7f9;
  color: #2c3e50;
  line-height: 1.35;
  padding: 15px 10px;
}

/* Kompaktní centrální kontejner */
.container {
  max-width: 720px;
  margin: 0 auto;
  background: #ffffff;
  padding: 20px 25px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

/* Nadpisy kapitol */
h2 {
  color: #0b4f6c;
  font-size: 19px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 18px;
  letter-spacing: -0.3px;
}

/* Sekční podnadpisy (1 - Textová část atd.) */
h3 {
  background: linear-gradient(135deg, #0b4f6c 0%, #01baef 100%);
  color: #ffffff;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 10px;
  border-radius: 4px;
  margin-top: 15px;
  margin-bottom: 8px;
  display: inline-block;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

/* Seznamy souborů v kapitolách i v DOsVPR */
ul[data-section] {
  list-style: none;
  padding: 0;
  margin-bottom: 12px;
}

/* KOMPAKTNÍ DLAŽDICE SOUBORŮ */
ul[data-section] li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #ffffff;
  border: 1px solid #e1e8ed;
  border-left: 3px solid #01baef;
  padding: 5px 10px;
  margin-bottom: 5px;
  border-radius: 4px;
  transition: all 0.15s ease-in-out;
}

ul[data-section] li:hover {
  background: #f4f9fc;
  border-color: #01baef;
  transform: translateX(2px);
  box-shadow: 0 2px 5px rgba(0,0,0,0.04);
}

/* Text odkazu na soubor */
ul[data-section] li a {
  color: #2c3e50;
  text-decoration: none;
  font-weight: 500;
  font-size: 12.5px;
  flex-grow: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

ul[data-section] li a:hover {
  color: #01baef;
}

/* Ikonky PDF / JPG */
ul[data-section] li img {
  margin-left: 8px;
  height: 20px;
  width: auto;
  opacity: 0.8;
  transition: opacity 0.15s;
  flex-shrink: 0;
}

ul[data-section] li:hover img {
  opacity: 1;
}

/* Styling pro vysvětlivky na stránce DOsVPR */
.note-text {
  font-size: 12px;
  color: #7f8c8d;
  margin-top: 12px;
  margin-bottom: 12px;
  font-style: italic;
}

/* Oddělovače a zpětný odkaz */
hr {
  border: none;
  height: 1px;
  background-color: #e1e8ed;
  margin: 15px 0;
}

.back-link {
  text-align: center;
  margin-top: 12px;
}

.back-link a {
  display: inline-block;
  background-color: #eef2f5;
  color: #0b4f6c;
  padding: 6px 14px;
  border-radius: 15px;
  text-decoration: none;
  font-weight: 600;
  font-size: 11.5px;
  transition: all 0.15s;
}

.back-link a:hover {
  background-color: #0b4f6c;
  color: #ffffff;
}

/* Mobilní responzivita */
@media (max-width: 600px) {
  .container {
    padding: 12px 15px;
  }
  h2 {
    font-size: 16px;
  }
}

.note-text a.bold-link {
  color: #0b4f6c;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.15s ease-in-out;
}

.note-text a.bold-link:hover {
  color: #01baef;
}