:root {
  color-scheme: dark;
  --bg: #0a1020;
  --bg2: #070b16;
  --panel: rgba(255,255,255,0.06);
  --panel2: rgba(255,255,255,0.085);
  --border: rgba(255,255,255,0.12);
  --border2: rgba(255,255,255,0.18);
  --text: rgba(255,255,255,0.92);
  --muted: rgba(255,255,255,0.60);
  --muted2: rgba(255,255,255,0.46);
  --brand: #60a5fa;
  --brand2: #a78bfa;
  --ok: #34d399;
  --warn: #fbbf24;
  --bad: #fb7185;
  --shadow: 0 18px 60px rgba(0,0,0,0.35);
  --shadow2: 0 10px 30px rgba(0,0,0,0.28);
  --radius: 14px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font: 14px/1.4 ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1100px 620px at 20% 10%, rgba(96,165,250,0.20), transparent 60%),
    radial-gradient(900px 520px at 80% 18%, rgba(167,139,250,0.15), transparent 55%),
    radial-gradient(900px 700px at 50% 100%, rgba(52,211,153,0.08), transparent 60%),
    linear-gradient(180deg, var(--bg), var(--bg2));
}

a { color: inherit; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  background: rgba(7,11,22,0.62);
}

.topbar__left { display: flex; align-items: center; gap: 10px; }
.brand {
  font-weight: 900;
  letter-spacing: -0.03em;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.brand__dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--brand), var(--brand2));
  box-shadow: 0 0 0 4px rgba(96,165,250,0.14);
}

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

.app {
  width: 100%;
  max-width: 1480px;
  margin: 0 auto;
  padding: 14px;
  display: grid;
  gap: 12px;
}

.layout {
  display: grid;
  gap: 12px;
}

.panel {
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--panel), rgba(255,255,255,0.03));
  box-shadow: var(--shadow2);
  border-radius: var(--radius);
  overflow: hidden;
}

.panel__hd {
  padding: 12px 12px 10px;
  border-bottom: 1px solid rgba(255,255,255,0.10);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: rgba(0,0,0,0.08);
}

.panel__bd { padding: 12px; }
.panel__title { margin: 0; font-size: 13px; letter-spacing: -0.01em; }
.muted { color: var(--muted); }
.muted2 { color: var(--muted2); }

.btn {
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  padding: 9px 12px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  user-select: none;
}
.btn:hover { background: rgba(255,255,255,0.09); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn.primary {
  border: 1px solid rgba(96,165,250,0.35);
  background: linear-gradient(135deg, rgba(96,165,250,0.18), rgba(167,139,250,0.14));
}
.btn.ghost {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.10);
}

.field { display: grid; gap: 6px; }
.field label { font-size: 12px; color: var(--muted); }
input, textarea, select {
  width: 100%;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.04);
  color: var(--text);
  padding: 10px 12px;
  outline: none;
}
textarea { resize: vertical; min-height: 88px; }

.sidebar__list { display: grid; gap: 8px; }
.projItem {
  text-align: left;
  width: 100%;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(0,0,0,0.14);
  padding: 10px 10px;
  cursor: pointer;
}
.projItem:hover { background: rgba(0,0,0,0.22); }
.projItem[aria-current="true"] {
  border-color: rgba(96,165,250,0.35);
  background: linear-gradient(135deg, rgba(96,165,250,0.10), rgba(167,139,250,0.08));
}
.projItem__id { font-weight: 800; letter-spacing: -0.02em; }
.projItem__name { font-size: 12px; color: var(--muted); margin-top: 2px; }

.tabs { display: flex; gap: 8px; flex-wrap: wrap; }
.tabBtn {
  border-radius: 999px;
  padding: 7px 10px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.05);
  color: var(--text);
  cursor: pointer;
}
.tabBtn[aria-selected="true"] {
  border-color: rgba(96,165,250,0.35);
  background: rgba(96,165,250,0.10);
}

.codebox {
  margin: 0;
  max-height: 360px;
  overflow: auto;
  padding: 12px;
  border-radius: 12px;
  background: rgba(0,0,0,0.28);
  border: 1px solid rgba(255,255,255,0.10);
  white-space: pre;
  font-family: var(--mono);
  font-size: 12px;
  color: rgba(255,255,255,0.86);
}
.codebox.wrap { white-space: pre-wrap; word-break: break-word; }

.diffLine-add { color: rgba(52,211,153,0.95); }
.diffLine-del { color: rgba(251,113,133,0.95); }
.diffLine-hdr { color: rgba(96,165,250,0.95); }

.previewFrame {
  width: 100%;
  height: 520px;
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 12px;
  background: rgba(0,0,0,0.22);
}

.row { display: flex; gap: 8px; flex-wrap: wrap; }
.row > * { flex: 1 1 auto; }

.kpi {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
}
.kpi__pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 9px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(0,0,0,0.18);
}
.dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--warn);
}
.dot.ok { background: var(--ok); }

/* Responsive layout: v0-like on desktop, stacked on mobile */
@media (min-width: 1100px) {
  .layout {
    grid-template-columns: 320px 1.05fr 0.95fr;
    align-items: start;
  }
  .previewFrame { height: 680px; }
}

@media (max-width: 1099px) {
  .previewFrame { height: 520px; }
}