:root {
  /* Main */
  --primary: #3B82F6;
  --primary-dark: #2563EB;
  --primary-light: #DBEAFE;

  /* Background */
  --bg-main: #F6F8FB;
  --bg-surface: #ffffff;
  --bg-accent: #dbe8ff;
  --bg-soft: #EEF2F7;

  /* Text */
  --text-main: #19212c;
  --text-secondary: #494e58;

  /* Meaning colors */
  --success: #22C55E;
  --danger: #EF4444;
  --warning: #F59E0B;

  /* Borders */
  --border: #D9E1EC;
}

/* ---------- BASE ---------- */

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
}

body {
  font-family: Arial, sans-serif;
  background: var(--bg-main);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---------- TOOLBARS ---------- */

.toolbar-main {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 56px;
  padding: 10px 16px;
  background: var(--bg-accent);
  border-bottom: 1px solid var(--border);
}


.toolbar-main .spacer {
  flex-grow: 1;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 40px;
  padding: 6px 10px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
}

.toolbar:first-of-type {
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  box-shadow: 0 2px 10px rgba(31, 41, 55, 0.04);
  z-index: 5;
}

.toolbar .spacer {
  flex-grow: 1;
}

/* ---------- BRAND / HEADER ---------- */

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-title {
  font-size: 27px;
  font-weight: 700;
  color: var(--text-main);
}

.brand-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  padding-left: 10px;
}

/* ---------- FILE INPUT ---------- */

#fileInput {
  color: var(--text-main);
  font-size: 12px;
}

#fileInput::file-selector-button {
  margin-right: 12px;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--text-main);
  padding: 10px 14px;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
}

#fileInput::file-selector-button:hover {
  background: var(--primary-light);
  border-color: var(--primary);
}

.file-upload input {
  display: none;
}

.file-upload {
  display: flex;
  align-items: center;
  gap: 10px;
}

.file-btn {
  border: 1px solid var(--border);
  background: var(--bg-soft);
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
}

.file-btn:hover {
  background: var(--primary-light);
  border-color: var(--primary);
}

#fileName {
  font-size: 12px;
  color: var(--text-main);
  width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---------- BUTTONS ---------- */

button {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--text-main);
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;

  
}

button:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary-dark);
}


/* highlight pre step tlačidlo */
#stepForward {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

#stepForward:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: white;
}

/* info buttons */
#panelToggleBtn,
#panelToggleBtnStep {
  background: var(--bg-surface);
}

/* ---------- RADIO MODE SWITCH ---------- */

.radio-inputs {
  position: relative;
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 4px;
  width: 240px;
  box-shadow: inset 0 1px 2px rgba(31, 41, 55, 0.04);
}

.radio-inputs .radio {
  flex: 1 1 0;
  text-align: center;
}

.radio-inputs .radio input {
  display: none;
}

.radio-inputs .radio .name {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  padding: 0 14px;
  border-radius: 9px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  transition:
    background 0.2s ease,
    color 0.2s ease,
    box-shadow 0.2s ease;
}

.radio-inputs .radio input:checked + .name {
  background: var(--bg-surface);
  color: var(--primary-dark);
  box-shadow: 0 1px 4px rgba(31, 41, 55, 0.08);
}

/* ---------- MAIN LAYOUT ---------- */

.main {
  flex-grow: 1;
  display: flex;
  overflow: hidden;
  position: relative;
  background:
    radial-gradient(circle at top left, rgba(59, 130, 246, 0.08), transparent 18%),
    linear-gradient(180deg, #f8fbff 0%, var(--bg-main) 100%);
}

#cy {
  flex-grow: 1;
  min-width: 0;
  background: transparent;
}

/* ---------- INFO PANEL ---------- */

#infoPanel {
  width: 340px;
  min-width: 340px;
  height: 100%;

  display: flex;
  flex-direction: column;   /* kľúčové */

  background: var(--bg-surface);
  border-left: 1px solid var(--border);
  box-shadow: -10px 0 30px rgba(31, 41, 55, 0.08);

  padding: 10px; /* zmenšené */
  gap: 10px;     /* medzera medzi sekciami */

  position: absolute;
  right: 0;
  top: 0;

  transform: translateX(100%);
  transition: transform 0.25s ease;

  overflow: hidden; /* ❗ vypni scroll na paneli */
  z-index: 10;
}

#infoPanel.open {
  transform: translateX(0);
}

#infoPanel h3 {
  margin: 0 0 10px;
  font-size: 16px;
  color: var(--text-main);
}

#ontologyContent,
#infoContent {
  flex: 1;   /* ❗ každá zaberie polovicu */

  display: flex;
  flex-direction: column;

  background: #fbfdff;
  border: 1px solid var(--border);
  border-radius: 12px;

  padding: 10px; /* menší padding */
  overflow: hidden; /* scroll bude len vo vnútri */
  overflow-y: auto;
}

/* ---------- STEP MODE ---------- */


#stepCounter {
  margin-left: 8px;
  padding: 6px 10px;
  background: var(--primary-light);
  color: var(--primary-dark);
  border: 1px solid #bfd6fb;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

#stepInlineDescription {
  margin-left: 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 600px;
}

/* ---------- CANVAS CONTROLS ---------- */

.canvasControls {
  position: absolute;
  bottom: 24px;
  left: 24px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  padding: 8px;
  border-radius: 14px;
  border: 1px solid var(--border);
  display: flex;
  gap: 8px;
  z-index: 20;
  box-shadow: 0 10px 24px rgba(31, 41, 55, 0.12);
}

.canvasControls button {
  min-width: 42px;
  min-height: 42px;
  padding: 0 12px;
  border-radius: 10px;
  background: var(--bg-surface);
}

#centerCanvas {
  padding: 0 14px;
}