/* Reset + base */
:root {
  --bg: #0f141a;
  --panel: #141b22;
  --muted: #8b9bb1;
  --text: #e6edf3;
  --accent: #2f81f7;
  --border: #26323d;
  --green: #2ea043;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, Noto Sans, "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
}

/* Layout */
#app {
  display: grid;
  grid-template-columns: 280px 1fr 42%;
  grid-template-rows: 100vh;
}

.sidebar {
  background: var(--panel);
  border-right: 1px solid var(--border);
  padding: 16px;
  overflow: auto;
}
.brand { margin-bottom: 12px; }
.brand .logo { font-size: 26px; }
.brand .title { font-weight: 700; font-size: 18px; }
.brand .subtitle { color: var(--muted); font-size: 12px; }

.panel { margin: 14px 0; }
.panel-label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; }
textarea, select, input[type="text"] {
  width: 100%;
  background: #0c1116;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px;
  border-radius: 8px;
}
select, input[type="range"] { width: 100%; }
.muted { color: var(--muted); }

/* Switch */
.switch { position: relative; display: inline-block; width: 48px; height: 26px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider {
  position: absolute; cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: #2a3440; transition: .3s; border-radius: 26px;
}
.slider:before {
  position: absolute; content: "";
  height: 22px; width: 22px; left: 2px; bottom: 2px;
  background-color: white; transition: .3s; border-radius: 50%;
}
input:checked + .slider { background-color: var(--accent); }
input:checked + .slider:before { transform: translateX(22px); }

/* Main chat */
.main { display: flex; flex-direction: column; height: 100vh; }
.chat {
  flex: 1; overflow: auto; padding: 16px 20px;
}
.msg { padding: 12px 14px; border: 1px solid var(--border); border-radius: 12px; margin-bottom: 10px; background: #0c1116; }
.msg.assistant { background: #0d1117; }
.msg .role { font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.msg .content { font-size: 14px; }
pre, code { white-space: pre-wrap; word-wrap: break-word; }
pre code { display: block; padding: 12px; background: #0b0f14; border-radius: 8px; border: 1px solid var(--border); }

.composer {
  border-top: 1px solid var(--border);
  padding: 12px;
  background: var(--panel);
}
.composer .row { display: flex; gap: 10px; }
.composer textarea { flex: 1; min-height: 64px; resize: vertical; }
.composer-actions { display: flex; flex-direction: column; gap: 8px; }
.toolbar { display: flex; gap: 8px; align-items: center; margin-top: 8px; }
.status { color: var(--muted); font-size: 12px; }

.btn {
  background: var(--accent);
  color: white;
  padding: 10px 14px;
  border: 0; border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
}
.btn.primary { background: var(--accent); }
.btn.ghost { background: transparent; border: 1px solid var(--border); }
.btn.outline { background: transparent; border: 1px solid var(--accent); color: var(--accent); }
.btn.small { padding: 6px 10px; font-size: 12px; }

/* Editor panel (Monaco) */
.editor-panel {
  border-left: 1px solid var(--border);
  display: flex; flex-direction: column;
  height: 100vh;
}
.editor-header {
  padding: 10px 12px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  background: var(--panel);
}
.editor { flex: 1; min-height: 0; }


/* Modal */
.modal.hidden { display: none; }
.modal { position: fixed; inset: 0; display: grid; place-items: center; z-index: 1000; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,0.55); backdrop-filter: blur(2px); }
.modal-window {
  position: relative;
  width: min(560px, 92vw);
  background: #0d131a;
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.5);
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 14px; border-bottom: 1px solid var(--border);
  background: var(--panel);
  border-top-left-radius: 12px; border-top-right-radius: 12px;
  font-weight: 600;
}
.modal-body { padding: 14px; display: grid; gap: 10px; }
.keyrow { display: grid; grid-template-columns: 1fr auto; gap: 8px; }
.badge {
  display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px;
  background: #243041; color: #cfe3ff; border: 1px solid var(--border);
}
.row.gap { display: flex; gap: 8px; align-items: center; }