body {
  font-family: Arial, Helvetica, sans-serif;
  background-color: cornsilk;
  margin: 40px;
}

h1, h2 {
  text-align: center;
}

section {
  max-width: 900px;
  margin: 0 auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  font-size: 0.95rem;
}

th, td {
  border: 1px solid #ccc;
  padding: 8px;
  text-align: center;
}

th {
  background-color: #f4f4f4;
}

button {
  padding: 4px 8px;
  margin: 0 2px;
  border: none;
  border-radius: 4px;
  background-color: #0078d4;
  color: white;
  cursor: pointer;
}

button:hover {
  background-color: #d20a0a;
}

#export_json, #export_csv, #go_home, #refresh {
  background-color: #0078d4;
}

#refresh:hover, #export_json:hover, #export_csv:hover, #go_home:hover {
  background-color: #0090ff;
}

.center {
  text-align: center;
  margin-top: 1rem;
}
/* toolbar style (size, colour, etc) */

button,
.study-picker-btn,
.dropdown-toggle {
  background-color: #0078d4;
  color: white;
  padding: 8px 16px;
  margin: 0 3px;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

button:hover,
.study-picker-btn:hover,
.dropdown-toggle:hover {
  background-color: #0090ff;
}
/* keep the Toolbar in one line */
.center {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: nowrap;
}

.study-picker-btn {
  background: #1e88e5; color: #fff;
  border: none; border-radius: 8px;
  padding: 8px 12px; cursor: pointer;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  display: none;
  min-width: 200px;
  list-style: none;
  margin: 0;
  padding: 6px;
  background: #fff;
  border: 1px solid #ccc;
  border-radius: 8px;
  z-index: 1000;
}
.dropdown:hover .dropdown-menu { display: block; }
.dropdown-menu li { margin: 2px 0; }
.dropdown-menu button {
  width: 100%;
  text-align: left;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
}
.dropdown-menu button:hover { background: #eee; }

/* Custom Study-picker */
.study-picker { position: relative; display: inline-block; }
.study-picker-btn {
  background: #1e88e5; color: #fff;
  border: none; border-radius: 8px;
  padding: 8px 12px; cursor: pointer;
}
.study-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  display: none;
  min-width: 220px;
  max-height: 50vh; overflow: auto;
  list-style: none;
  margin: 0;
  padding: 6px;
  background: #fff;
  border: 1px solid #ccc;
  border-radius: 8px;
  z-index: 1000;
}
.study-picker:hover .study-menu { display: block; }
.study-menu li {
  padding: 8px; border-radius: 6px; cursor: pointer; white-space: nowrap;
}
.study-menu li:hover { background: #f0f0f0; }

#study_select {
  position: absolute !important;
  opacity: 0 !important;
  pointer-events: none !important;
  width: 0 !important; height: 0 !important;
}

button:not(.remove):hover,
.study-picker-btn:hover,
.dropdown-toggle:hover {
  background-color: #0090ff;
}
button.remove:hover {
  background-color: #d20a0a;
}

.dropdown-toggle,
.study-picker-btn {
  background-color: #0078d4 !important;
  color: #fff !important;
  border: none !important;
  border-radius: 8px !important;
  padding: 8px 16px !important;
}

/* same font for every menu point */
.dropdown-menu button,
.study-menu li {
  font-size: 0.95rem;
}

/* Dropdown-Buttons lesbar (kein weiß auf weiß) */
.dropdown-menu button {
  color: #222 !important;
}
.dropdown-menu button:hover {
  background-color: #e8f0fe;
  color: #000;
}

/* Studienmenü ebenfalls lesbar */
.study-menu li { color: #222; }

/* Hover-Highlight für die zwei Hauptbuttons sicher */
.study-picker-btn:hover,
.dropdown-toggle:hover { background-color: #0090ff !important; }

/* Menü optisch abheben */
.dropdown-menu {
  background-color: #fefefe;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  border: 1px solid #ccc;
}

/* Go home button location CreateStudy */
.topbar {
  display: flex;
  align-items: center;          
  justify-content: space-between; 
  flex-direction: row-reverse;
  max-width: 760px;
  margin: 2rem auto 1.5rem;
  padding: 0 1rem;
}

.topbar button:hover {
  background-color: #0090ff;
}

.topbar h1 {
  margin: 0;
  font-size: 1.8rem;
}