:root {
  --bg: #0d1117;
  --panel: #161b22;
  --panel2: #1c2129;
  --border: #2d333b;
  --text: #e6edf3;
  --dim: #8b949e;
  --accent: #4ea1ff;
  --accent2: #3fb950;
  --warn: #d29922;
  --danger: #f85149;
  --del: rgba(248, 81, 73, .12);
  --add: rgba(63, 185, 80, .12);
  --mono: "SF Mono", "Cascadia Code", Consolas, "Liberation Mono", monospace;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--bg); color: var(--text); font: 14px/1.5 -apple-system, "Segoe UI", Roboto, sans-serif; min-height: 100vh; display: flex; flex-direction: column; }

header { display: flex; align-items: baseline; gap: 12px; padding: 12px 20px; border-bottom: 1px solid var(--border); background: var(--panel); }
.brand { font-size: 17px; font-weight: 700; letter-spacing: .3px; }
.logo { color: var(--accent); }
.sub { color: var(--dim); font-size: 12px; }

main { flex: 1; padding: 16px 20px 24px; display: flex; flex-direction: column; gap: 14px; max-width: 1500px; width: 100%; margin: 0 auto; }

.toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between; }
.modes { display: flex; gap: 6px; flex-wrap: wrap; }
.modes button, .actions button { background: var(--panel2); color: var(--text); border: 1px solid var(--border); padding: 8px 14px; border-radius: 6px; cursor: pointer; font-size: 13px; }
.modes button:hover, .actions button:hover { border-color: var(--accent); }
.modes button.active { border-color: var(--accent); color: var(--accent); background: rgba(78,161,255,.08); }
.actions { display: flex; gap: 8px; }
.actions .primary { background: var(--accent); border-color: var(--accent); color: #06101c; font-weight: 700; }
.actions .primary:disabled { opacity: .5; cursor: wait; }

.panes { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; min-height: 420px; }
.pane { display: flex; flex-direction: column; background: var(--panel); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; min-width: 0; }
.pane-head { display: flex; justify-content: space-between; align-items: center; padding: 8px 12px; border-bottom: 1px solid var(--border); font-size: 12px; color: var(--dim); gap: 8px; flex-wrap: wrap; }
.tabs button { background: none; border: none; color: var(--dim); padding: 4px 10px; cursor: pointer; font-size: 12px; border-bottom: 2px solid transparent; }
.tabs button.active { color: var(--accent); border-bottom-color: var(--accent); }
.head-right { display: flex; gap: 8px; align-items: center; }
.meta { font-size: 11px; }
#search { background: var(--bg); border: 1px solid var(--border); color: var(--text); border-radius: 5px; padding: 4px 8px; font-size: 12px; width: 140px; }

.editor-wrap, .outpane { position: relative; flex: 1; min-height: 380px; }
.editor-wrap { overflow: hidden; }
.hl, textarea { position: absolute; inset: 0; font: 12.5px/1.55 var(--mono); padding: 12px; white-space: pre; overflow: auto; tab-size: 4; }
.hl { pointer-events: none; color: var(--text); margin: 0; overflow: hidden; }
textarea { background: transparent; color: transparent; caret-color: var(--text); border: none; resize: none; outline: none; }
textarea::placeholder { color: var(--dim); }

/* lua highlighting */
.tok-kw { color: #ff7b72; } .tok-num { color: #79c0ff; }
.tok-str { color: #a5d6ff; } .tok-com { color: #6e7681; font-style: italic; }
.tok-fn { color: #d2a8ff; } .tok-op { color: #c9d1d9; }
.hl b.hit { background: rgba(210,153,34,.45); }

.out-wrap { position: relative; flex: 1; display: flex; flex-direction: column; min-height: 0; }
.outpane.hidden, .hidden { display: none; }
.outpane .editor-wrap { position: relative; }

.diff-heads { display: grid; grid-template-columns: 1fr 1fr; font-size: 11px; color: var(--dim); border-bottom: 1px solid var(--border); }
.diff-heads div { padding: 6px 12px; }
.diff-body { flex: 1; overflow: auto; font: 12px/1.5 var(--mono); }
.diff-row { display: grid; grid-template-columns: 1fr 1fr; }
.diff-row div { padding: 0 12px; white-space: pre; overflow: hidden; text-overflow: ellipsis; }
.diff-row.same div:first-child { color: var(--dim); }
.diff-row.del div:first-child { background: var(--del); }
.diff-row.add div:last-child { background: var(--add); }
.diff-row div.void { background: rgba(255,255,255,.02); }

.report { padding: 12px; font: 12px/1.6 var(--mono); white-space: pre-wrap; color: var(--text); }
.report .ok { color: var(--accent2); } .report .skip { color: var(--dim); }

.findings-body h4, .findings-body h3 { margin: 10px 12px 6px; font-size: 12px; color: var(--accent); text-transform: uppercase; letter-spacing: .5px; }
.finding { margin: 6px 12px; padding: 8px 10px; background: var(--panel2); border: 1px solid var(--border); border-radius: 6px; font-size: 12.5px; }
.finding .badge { display: inline-block; font-size: 10px; padding: 1px 7px; border-radius: 9px; margin-right: 8px; vertical-align: 1px; }
.badge.high { background: var(--danger); color: #fff; }
.badge.med { background: var(--warn); color: #1c1607; }
.badge.low { background: var(--border); color: var(--text); }
.finding .note { color: var(--dim); display: block; }
.finding .line { color: var(--accent); font-family: var(--mono); }

.sidebar-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.passes-box, .history-box { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 12px 16px; }
.passes-box h3, .history-box h3 { font-size: 12px; color: var(--dim); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 8px; }
.pass-row { display: flex; gap: 8px; align-items: center; padding: 3px 0; font-size: 13px; }
.pass-row .rev { margin-left: auto; font-size: 10px; color: var(--dim); border: 1px solid var(--border); border-radius: 8px; padding: 0 6px; }
.hint { color: var(--dim); font-size: 11px; margin-top: 8px; }
.dim { color: var(--dim); }
.hist-row { padding: 5px 8px; border-radius: 5px; cursor: pointer; font-size: 12.5px; display: flex; justify-content: space-between; gap: 8px; }
.hist-row:hover { background: var(--panel2); }
.hist-row .t { color: var(--dim); font-size: 11px; }
.downloads { margin-top: 14px; }
.downloads button { margin: 0 6px 6px 0; background: var(--panel2); border: 1px solid var(--border); color: var(--text); border-radius: 5px; padding: 6px 12px; cursor: pointer; font-size: 12px; }
.downloads button:disabled { opacity: .4; cursor: default; }
.downloads button:not(:disabled):hover { border-color: var(--accent); }

.status { border-top: 1px solid var(--border); background: var(--panel); padding: 8px 20px; display: flex; gap: 14px; align-items: center; font-size: 12.5px; color: var(--dim); }
.status.error #statusText { color: var(--danger); }
.status.ok #statusText { color: var(--accent2); }
.progress { width: 160px; height: 5px; background: var(--panel2); border-radius: 3px; overflow: hidden; position: relative; }
.progress::after { content: ""; position: absolute; inset: 0; width: 40%; background: var(--accent); border-radius: 3px; animation: slide 1s linear infinite; }
@keyframes slide { from { left: -40%; } to { left: 100%; } }

.dropzone { outline: 2px dashed var(--accent); outline-offset: -4px; }

@media (max-width: 950px) {
  .panes { grid-template-columns: 1fr; }
  .sidebar-row { grid-template-columns: 1fr; }
  .editor-wrap, .outpane { min-height: 260px; }
}