:root {
  --bg: #f5f6f8;
  --sidebar-bg: #1f2430;
  --sidebar-fg: #e6e8ef;
  --accent: #4f6df5;
  --accent-hover: #3d59d6;
  --card-bg: #ffffff;
  --border: #e1e3ea;
  --text: #262a33;
  --text-muted: #6b7280;
  --success: #1f9d55;
  --error: #d64545;
  --warn: #b98900;
  --hover-bg: #f0f1f5;
  --accent-soft: #eef1ff;
}

:root[data-theme="dark"] {
  --bg: #14161c;
  --sidebar-bg: #14161c;
  --sidebar-fg: #e6e8ef;
  --accent: #6c86ff;
  --accent-hover: #8398ff;
  --card-bg: #1e212b;
  --border: #2c303c;
  --text: #e6e8ef;
  --text-muted: #9aa0b4;
  --success: #33c470;
  --error: #ef6060;
  --warn: #e0ab35;
  --hover-bg: #262a36;
  --accent-soft: #262c47;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.home-link {
  display: block;
  color: var(--sidebar-fg);
  text-decoration: none;
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 16px;
}

.home-link:hover { color: var(--accent); }

.theme-toggle {
  background: none;
  border: 1px solid #3a4051;
  color: var(--sidebar-fg);
  border-radius: 6px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 13px;
  margin-bottom: 16px;
  width: 100%;
  text-align: left;
}

.theme-toggle:hover { background: #2a3040; }

.layout {
  display: flex;
  height: 100vh;
}

.sidebar {
  width: 280px;
  background: var(--sidebar-bg);
  color: var(--sidebar-fg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow-y: auto;
}

.sidebar h1 {
  font-size: 18px;
  margin: 0 0 16px;
}

.sidebar-section-title {
  margin-top: 28px !important;
  display: flex;
  align-items: center;
  gap: 8px;
}

.coming-soon-badge {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  color: #a5abbd;
}

.disabled-item {
  padding: 10px 12px;
  font-size: 12px;
  color: #6b7280;
  cursor: default !important;
  line-height: 1.4;
}

.disabled-item:hover { background: none !important; }

.new-course {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
}

.new-course input {
  flex: 1;
  min-width: 0;
  padding: 8px;
  border-radius: 6px;
  border: 1px solid #3a4051;
  background: #2a3040;
  color: white;
}

.new-course button {
  background: var(--accent);
  border: none;
  color: white;
  padding: 8px 10px;
  border-radius: 6px;
  cursor: pointer;
  white-space: nowrap;
}

.new-course button:hover { background: var(--accent-hover); }

.course-list {
  list-style: none;
  padding: 0;
  margin: 0;
  overflow-y: auto;
}

.course-list li {
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  margin-bottom: 4px;
}

.course-list li:hover { background: #2a3040; }
.course-list li.active { background: var(--accent); }

.course-list .meta {
  display: block;
  font-size: 12px;
  color: #a5abbd;
}

.content {
  flex: 1;
  overflow-y: auto;
  padding: 30px 40px;
}

.empty-state {
  color: var(--text-muted);
  margin-top: 20px;
  max-width: 720px;
}

.dashboard-title {
  font-size: 28px;
  color: var(--text);
  margin: 0 0 6px;
}

.dashboard-subtitle {
  margin: 0 0 28px;
}

.dashboard-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 32px;
}

.dashboard-stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
}

.dashboard-stat-value {
  font-size: 26px;
  font-weight: 700;
  color: var(--accent);
}

.dashboard-stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

.dashboard-section-heading {
  font-size: 14px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin: 0 0 10px;
}

.dashboard-recent {
  list-style: none;
  padding: 0;
  margin: 0;
}

.dashboard-recent li {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 8px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: left;
}

.dashboard-recent li:hover { background: var(--hover-bg); }

.dashboard-recent .meta {
  font-size: 12px;
  color: var(--text-muted);
}

.course-header h2 { margin: 0 0 16px; }

.tabs {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}

.tab-btn {
  background: none;
  border: none;
  padding: 10px 16px;
  cursor: pointer;
  font-size: 14px;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.folder-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.folder-pills {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.folder-pills li {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  cursor: pointer;
  font-size: 13px;
  color: var(--text-muted);
}

.folder-pills li:hover { background: var(--hover-bg); }

.folder-pills li.active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.new-folder {
  display: flex;
  gap: 6px;
}

.new-folder input {
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  font-size: 13px;
}

.new-folder button {
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  white-space: nowrap;
}

.new-folder button:hover { background: var(--hover-bg); }

.dropzone {
  border: 2px dashed var(--border);
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  color: var(--text-muted);
  cursor: pointer;
  margin-bottom: 20px;
  background: var(--card-bg);
}

.dropzone.dragover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.upload-target-hint {
  display: inline-block;
  margin: 10px 0 0;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
}

.url-add-row {
  display: flex;
  gap: 8px;
  margin: 16px 0 4px;
}

.url-add-row input {
  flex: 1;
  min-width: 0;
  padding: 8px 12px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  font-size: 13px;
}

.url-add-row button {
  padding: 8px 14px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  white-space: nowrap;
}

.url-add-row button:hover { background: var(--hover-bg); }
.url-add-row button:disabled { opacity: 0.6; cursor: not-allowed; }

.url-status {
  font-size: 12px;
  margin: 0 0 16px;
  min-height: 16px;
}

.url-status.error { color: var(--error); }
.url-status.success { color: var(--success); }

.item-folder-select {
  font-size: 12px;
  padding: 4px 6px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
}

.notes-source-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}

.notes-source-label select {
  padding: 6px 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  font-size: 13px;
}

.item-list, .note-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.item-list li {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.item-icon { font-size: 20px; }

.item-info { flex: 1; min-width: 0; }
.item-name { font-weight: 600; overflow-wrap: anywhere; }
.item-status { font-size: 12px; color: var(--text-muted); }
.item-status.done { color: var(--success); }
.item-status.error { color: var(--error); }
.item-status.processing, .item-status.queued { color: var(--warn); }

.item-progress { margin-top: 6px; }

.progress-bar {
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: var(--border);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--accent);
  transition: width 0.4s ease;
}

.progress-text {
  margin-top: 4px;
  font-size: 11px;
  color: var(--text-muted);
}

.item-actions { display: flex; gap: 8px; align-items: center; }

button.small {
  padding: 6px 10px;
  font-size: 13px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  cursor: pointer;
}

button.small:hover { background: var(--hover-bg); }
button.small:disabled { opacity: 0.5; cursor: not-allowed; }

.notes-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

#generate-notes-btn {
  background: var(--accent);
  color: white;
  border: none;
  padding: 10px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
}

#generate-notes-btn:hover { background: var(--accent-hover); }
#generate-notes-btn:disabled { opacity: 0.6; cursor: not-allowed; }

#cleanup-handwriting-btn {
  background: var(--card-bg);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 10px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
}

#cleanup-handwriting-btn:hover { background: var(--hover-bg); }
#cleanup-handwriting-btn:disabled { opacity: 0.6; cursor: not-allowed; }

#notes-status { color: var(--text-muted); font-size: 13px; }

.notes-hint {
  color: var(--text-muted);
  font-size: 12px;
  margin: -10px 0 16px;
}

.notes-layout {
  display: flex;
  gap: 20px;
}

.note-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.note-view-toolbar {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}

.note-editor {
  flex: 1;
  min-height: 400px;
  background: var(--card-bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: 13px;
  line-height: 1.5;
  resize: vertical;
}

.note-list-wrap {
  width: 240px;
  flex-shrink: 0;
}

.note-list li {
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  background: var(--card-bg);
  border: 1px solid var(--border);
  margin-bottom: 6px;
  font-size: 13px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.note-list li.active {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.note-list li input[type="checkbox"] {
  margin-top: 3px;
  flex-shrink: 0;
  cursor: pointer;
}

.note-list li .note-item-text {
  flex: 1;
  min-width: 0;
  cursor: pointer;
}

.bulk-export-bar {
  margin-top: 10px;
  padding: 10px;
  border-radius: 8px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 12px;
  color: var(--text-muted);
}

.bulk-export-bar label {
  display: flex;
  align-items: center;
  gap: 6px;
}

.bulk-export-bar select {
  flex: 1;
  padding: 5px 6px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 12px;
}

#bulk-export-btn { width: 100%; }

.note-content {
  flex: 1;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  min-height: 300px;
  overflow-wrap: anywhere;
}

.note-content h1, .note-content h2, .note-content h3 { margin-top: 1.2em; }
.note-content:empty::before {
  content: "Válassz egy jegyzetet a listából, vagy generálj egy újat.";
  color: var(--text-muted);
}

.note-content .mermaid {
  margin: 20px 0;
  text-align: center;
}

.note-content svg {
  max-width: 100%;
  height: auto;
}

.note-content table {
  max-width: 100%;
  display: block;
  overflow-x: auto;
}

/* ---- Mobil nézet ---- */
@media (max-width: 768px) {
  .layout {
    flex-direction: column;
    height: auto;
    min-height: 100vh;
  }

  .sidebar {
    width: 100%;
    max-height: 45vh;
    padding: 16px;
  }

  .content {
    padding: 16px;
  }

  .dashboard-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .dashboard-title {
    font-size: 22px;
  }

  .tabs {
    flex-wrap: wrap;
  }

  .folder-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .new-folder {
    flex-direction: column;
  }

  .url-add-row {
    flex-direction: column;
  }

  .item-list li {
    flex-wrap: wrap;
  }

  .item-actions {
    flex-wrap: wrap;
    width: 100%;
  }

  .notes-toolbar {
    flex-wrap: wrap;
    gap: 8px;
  }

  .notes-source-label {
    width: 100%;
  }

  .notes-source-label select {
    flex: 1;
  }

  .notes-layout {
    flex-direction: column;
  }

  .note-list-wrap {
    width: 100%;
  }

  .note-list {
    display: flex;
    overflow-x: auto;
    gap: 8px;
    padding-bottom: 4px;
  }

  .note-list li {
    flex-shrink: 0;
    width: 220px;
  }

  .note-view-toolbar {
    flex-wrap: wrap;
  }

  .note-content {
    padding: 16px;
  }

  .note-editor {
    min-height: 250px;
  }
}

@media (max-width: 480px) {
  .dashboard-stats {
    grid-template-columns: 1fr;
  }

  #generate-notes-btn,
  #cleanup-handwriting-btn {
    width: 100%;
  }
}