/* ==========================================================================
   PICO-STYLE FRAMEWORK S DYNAMICKÝMI PRVKY
   ========================================================================== */

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-family);
  background-color: var(--background);
  color: var(--text);
  line-height: 1.6;
  transition: background-color 0.3s, color 0.3s;
}

/* --- LAYOUT --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
}

section {
  padding: calc(var(--gap) * 1.5) 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--gap);
}

.overflow-auto {
  overflow-x: auto;
  white-space: nowrap;
}

/* --- TYPOGRAPHY --- */
h1, h2, h3, h4 { margin-bottom: 0.5em; color: var(--text); }
p { margin-bottom: 1rem; color: var(--text-muted); }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* --- BUTTONS --- */
button, .button {
  display: inline-block;
  background-color: var(--primary);
  color: #fff;
  border: var(--border-width) solid var(--primary);
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 500;
  transition: background-color 0.2s, box-shadow 0.2s;
  box-shadow: var(--box-shadow);
}
button:hover, .button:hover { background-color: var(--primary-hover); }
button:focus { box-shadow: 0 0 0 3px var(--primary-focus); outline: none; }

/* --- TABLES --- */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
}
th, td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: var(--border-width) solid var(--border-color);
}
th { background-color: var(--background); }

/* --- FORMS --- */
input[type="text"], textarea, select {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--border-radius);
  background-color: var(--background);
  color: var(--text);
  margin-bottom: 1rem;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-focus);
}
.form-group-check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

/* --- SWITCH --- */
.switch { position: relative; display: inline-block; width: 44px; height: 24px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider {
  position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0;
  background-color: var(--border-color); border-radius: 24px; transition: .3s;
}
.slider:before {
  position: absolute; content: ""; height: 16px; width: 16px; left: 4px; bottom: 4px;
  background-color: white; border-radius: 50%; transition: .3s;
}
input:checked + .slider { background-color: var(--primary); }
input:checked + .slider:before { transform: translateX(20px); }

/* --- RANGE --- */

/* Checkboxy a Radio buttony */
input[type="checkbox"], 
input[type="radio"] {
  accent-color: var(--primary) !important;
}

/* Range posuvníky */
input[type="range"] {
  accent-color: var(--primary) !important;
}

/* Progress bar (Ukazatel průběhu) */
progress {
  accent-color: var(--primary) !important;
}
/* Oprava pro prohlížeče Chrome/Safari/Edge, které u progress baru ignorují accent-color */
progress::-webkit-progress-value {
  background-color: var(--primary) !important;
}
/* Oprava pro Firefox */
progress::-moz-progress-bar {
  background-color: var(--primary) !important;
}


/* --- COMPONENT STYLES --- */
details {
  background: var(--background);
  padding: 0.5rem 1rem;
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--border-radius);
  margin-bottom: 0.5rem;
}
summary { font-weight: bold; cursor: pointer; }

.card {
  background: var(--surface);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--padding);
  box-shadow: var(--box-shadow);
  margin-bottom: var(--gap);
}

.dropdown { position: relative; display: inline-block; }
.dropdown-content {
  display: none; position: absolute; background-color: var(--surface);
  border: var(--border-width) solid var(--border-color); border-radius: var(--border-radius);
  min-width: 160px; z-index: 10; box-shadow: var(--box-shadow);
}
.dropdown:hover .dropdown-content { display: block; }
.dropdown-content a { display: block; padding: 0.5rem 1rem; color: var(--text); }

.group { display: flex; border-radius: var(--border-radius); overflow: hidden; }
.group input, .group button { border-radius: 0; margin: 0; box-shadow: none; }
.group input { border-right: none; }

.loading {
  width: 24px; height: 24px; border: 3px solid var(--border-color);
  border-top: 3px solid var(--primary); border-radius: 50%;
  animation: spin 1s linear infinite; display: inline-block;
}
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

.modal-backdrop {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.5); display: none; justify-content: center; align-items: center; z-index: 100;
}
.modal-backdrop:target { display: flex; }
.modal-content {
  background: var(--background); padding: calc(var(--padding) * 2);
  border-radius: var(--border-radius); max-width: 500px; width: 100%;
  box-shadow: var(--box-shadow); border: var(--border-width) solid var(--border-color);
}

nav {
  display: flex; justify-content: space-between; align-items: center;
  background: var(--surface); padding: var(--padding); border-radius: var(--border-radius);
  border: var(--border-width) solid var(--border-color); box-shadow: var(--box-shadow);
  margin-bottom: var(--gap);
}
nav ul { display: flex; list-style: none; gap: var(--gap); }

progress {
  width: 100%; height: 12px; accent-color: var(--primary);
  border-radius: var(--border-radius); border: none; background: var(--border-color);
}
progress::-webkit-progress-bar { background: var(--border-color); border-radius: var(--border-radius); }
progress::-webkit-progress-value { background: var(--primary); border-radius: var(--border-radius); }

.tooltip { position: relative; display: inline-block; border-bottom: 1px dotted var(--text); cursor: help; }
.tooltip .tooltiptext {
  visibility: hidden; width: 120px; background-color: var(--surface); color: var(--text);
  text-align: center; border-radius: var(--border-radius); padding: 5px; border: var(--border-width) solid var(--border-color);
  position: absolute; z-index: 1; bottom: 125%; left: 50%; margin-left: -60px; opacity: 0; transition: opacity 0.2s;
}
.tooltip:hover .tooltiptext { visibility: visible; opacity: 1; }

footer {
  margin-top: calc(var(--gap) * 2); padding: var(--padding); background: var(--surface);
  border: var(--border-width) solid var(--border-color); border-radius: var(--border-radius);
  text-align: center; color: var(--text-muted); box-shadow: var(--box-shadow);
}

/* --- INTERFACE EDITORU (GUI) --- */
#editor-layout { display: flex; gap: 2rem; margin-top: 1rem; padding: 1rem; }
#customizer-panel {
  flex: 1; max-width: 320px; background: var(--surface); padding: 1.5rem;
  border-radius: 8px; height: fit-content; position: sticky; top: 1rem;
  border: 1px solid var(--border-color);
}
#preview-panel { flex: 3; }
.control-item { margin-bottom: 1rem; }
.control-item label { display: block; font-weight: bold; font-size: 0.85rem; margin-bottom: 0.3rem; color: var(--text); }
@media (max-width: 900px) {
  #editor-layout { flex-direction: column; }
  #customizer-panel { max-width: 100%; position: static; }
}