:root {
  --bg: #f6f5f2;
  --panel: #ffffff;
  --border: #e2ddd4;
  --text: #2b2823;
  --text-muted: #7a746a;
  --accent: #a5673f;
  --accent-hover: #8a5433;
  --status-offen: #e4a11b;
  --status-arbeit: #3b82c4;
  --status-fertig: #4c9a5a;
}

* { box-sizing: border-box; }

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

.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.brand {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent);
}

.domain-filters {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  flex: 1;
}

.domain-filters button {
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.85rem;
}

.domain-filters button.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.domain-filters button.master {
  border-style: dashed;
}

.topbar-right { display: flex; align-items: center; }

.token-box {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.token-box input {
  width: 70px;
  padding: 4px 6px;
  border: 1px solid var(--border);
  border-radius: 6px;
}

.token-box button {
  border: none;
  background: var(--accent);
  color: #fff;
  border-radius: 6px;
  padding: 4px 8px;
  cursor: pointer;
}

.tabbar {
  display: flex;
  gap: 4px;
  padding: 0 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.tab-btn {
  border: none;
  background: transparent;
  padding: 12px 16px;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
}

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

main { padding: 20px; max-width: 1400px; margin: 0 auto; }

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

.explorer-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 16px;
  align-items: start;
}

.file-tree {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  max-height: 75vh;
  overflow-y: auto;
}

.tree-node { margin-left: 14px; }
.tree-dir > .tree-label { font-weight: 600; cursor: pointer; }
.tree-file .tree-label { cursor: pointer; color: var(--text); }
.tree-file .tree-label:hover, .tree-dir > .tree-label:hover { color: var(--accent); }
.tree-label { display: block; padding: 3px 4px; border-radius: 4px; font-size: 0.88rem; }
.tree-label.selected { background: var(--accent); color: #fff; }
.tree-children { display: none; }
.tree-children.open { display: block; }

.file-content {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px 32px;
  min-height: 75vh;
  max-height: 75vh;
  overflow-y: auto;
  line-height: 1.65;
}

.file-content h1, .file-content h2, .file-content h3 { color: var(--accent); }
.file-content pre { background: #f1efe9; padding: 12px; border-radius: 8px; overflow-x: auto; }
.file-content code { background: #f1efe9; padding: 2px 5px; border-radius: 4px; }
.file-content pre code { background: none; padding: 0; }
.file-content table { border-collapse: collapse; }
.file-content th, .file-content td { border: 1px solid var(--border); padding: 6px 10px; }
.file-content iframe { width: 100%; height: 75vh; border: none; }

.hint { color: var(--text-muted); font-size: 0.9rem; }

#milestones-table table { width: 100%; border-collapse: collapse; background: var(--panel); border-radius: 10px; overflow: hidden; }
#milestones-table th, #milestones-table td { border: 1px solid var(--border); padding: 8px 10px; text-align: center; font-size: 0.85rem; }
#milestones-table th { background: #efece5; }
#milestones-table td.domain-name { text-align: left; font-weight: 600; }
.status-cell { cursor: pointer; border-radius: 6px; color: #fff; font-size: 0.78rem; }
.status-offen { background: var(--status-offen); }
.status-in-arbeit { background: var(--status-arbeit); }
.status-fertig { background: var(--status-fertig); }

#idea-input, #chat-input { width: 100%; padding: 10px; border: 1px solid var(--border); border-radius: 8px; font-family: inherit; resize: vertical; }

button {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  margin-top: 8px;
}
button:hover { background: var(--accent-hover); }
button.secondary { background: var(--text-muted); }

.idea-suggestion {
  margin-top: 16px;
  padding: 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.idea-suggestion label { display: block; margin: 8px 0 4px; font-size: 0.85rem; color: var(--text-muted); }
.idea-suggestion select, .idea-suggestion input[type="text"] {
  width: 100%; padding: 6px 8px; border: 1px solid var(--border); border-radius: 6px;
}
.idea-actions { display: flex; gap: 8px; }
.idea-result { color: var(--status-fertig); font-weight: 600; }

.chat-messages {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  min-height: 300px;
  max-height: 55vh;
  overflow-y: auto;
  margin-bottom: 10px;
}
.chat-msg { margin-bottom: 12px; }
.chat-msg.user .role { color: var(--accent); font-weight: 600; }
.chat-msg.assistant .role { color: var(--status-arbeit); font-weight: 600; }
.chat-input-row { display: flex; gap: 8px; align-items: flex-start; }
.chat-input-row textarea { flex: 1; }
.chat-input-row button { margin-top: 0; height: fit-content; }