:root {
  --bg: #0f1116;
  --panel: #171a21;
  --panel-2: #1e222b;
  --border: #2a2f3a;
  --text: #e7eaf0;
  --muted: #98a1b3;
  --accent: #f6821f;
  --accent-2: #ffb454;
  --ok: #37b26b;
  --warn: #e5a54b;
  --danger: #e5644b;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: radial-gradient(1200px 600px at 80% -10%, #1b1f29 0%, var(--bg) 60%);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.5;
  min-height: 100vh;
}

.site-header {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 20px 28px; border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand-mark {
  width: 38px; height: 38px; border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 6px 18px rgba(246,130,31,0.35);
}
.site-header h1 { font-size: 18px; margin: 0; letter-spacing: 0.2px; }
.tagline { margin: 2px 0 0; color: var(--muted); font-size: 13px; }
.privacy-pill {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(55,178,107,0.12); color: #b8f0d0;
  border: 1px solid rgba(55,178,107,0.35);
  padding: 7px 12px; border-radius: 999px; font-size: 12.5px; font-weight: 600;
}
.privacy-pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 8px var(--ok); }

main { max-width: 1080px; margin: 0 auto; padding: 28px; }

.dropzone {
  border: 2px dashed var(--border); border-radius: 16px;
  background: var(--panel); padding: 40px 24px; text-align: center;
  transition: border-color .15s, background .15s; cursor: pointer;
}
.dropzone.drag { border-color: var(--accent); background: var(--panel-2); }
.upload-icon {
  width: 52px; height: 52px; margin: 0 auto 12px; border-radius: 50%;
  display: grid; place-items: center; font-size: 22px;
  background: rgba(246,130,31,0.12); color: var(--accent);
  border: 1px solid rgba(246,130,31,0.3);
}
.dz-title { font-size: 17px; font-weight: 650; margin: 4px 0; }
.dz-sub { color: var(--muted); margin: 2px 0; }
.dz-hint { color: var(--muted); font-size: 12.5px; margin-top: 10px; }
.linklike { background: none; border: none; color: var(--accent); cursor: pointer; font: inherit; padding: 0; text-decoration: underline; }

.samples-bar {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  margin: 16px 0 0; padding: 14px 16px; background: var(--panel);
  border: 1px solid var(--border); border-radius: 12px;
}
.samples-label { color: var(--muted); font-size: 13px; }
.sample-buttons { display: flex; gap: 8px; flex-wrap: wrap; }
.sample-btn {
  background: var(--panel-2); color: var(--text); border: 1px solid var(--border);
  padding: 7px 12px; border-radius: 8px; cursor: pointer; font-size: 13px;
}
.sample-btn:hover { border-color: var(--accent); }
.samples-download { margin-left: auto; color: var(--accent-2); font-size: 13px; text-decoration: none; font-weight: 600; }
.samples-download:hover { text-decoration: underline; }

.results { margin-top: 20px; }
.toolbar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  flex-wrap: wrap; margin-bottom: 12px;
}
.stats { display: flex; gap: 16px; flex-wrap: wrap; font-size: 13px; color: var(--muted); }
.stats b { color: var(--text); font-variant-numeric: tabular-nums; }
.toolbar-actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.search-wrap input {
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  padding: 8px 12px; border-radius: 8px; min-width: 220px; font: inherit;
}
.btn {
  background: var(--panel-2); color: var(--text); border: 1px solid var(--border);
  padding: 8px 14px; border-radius: 8px; cursor: pointer; font: inherit; font-size: 13px;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); border: none; color: #1a1204; font-weight: 700; }
.btn.ghost { background: transparent; }
.downloads { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.download-hint { color: var(--muted); font-size: 12.5px; }

.file-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 10px; }
.file-tab {
  background: var(--panel); border: 1px solid var(--border); color: var(--muted);
  padding: 6px 12px; border-radius: 8px 8px 0 0; cursor: pointer; font-size: 13px;
}
.file-tab.active { color: var(--text); border-bottom-color: var(--accent); background: var(--panel-2); }

.tree {
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
  padding: 10px 6px; max-height: 62vh; overflow: auto; font-family: var(--mono); font-size: 13px;
}
.node { display: block; }
.node-row {
  display: flex; align-items: center; gap: 6px; padding: 2px 8px; border-radius: 6px;
  white-space: nowrap;
}
.node-row:hover { background: var(--panel-2); }
.node-row.hidden { display: none; }
.toggle {
  width: 16px; height: 16px; display: inline-grid; place-items: center; cursor: pointer;
  color: var(--muted); flex: 0 0 auto; user-select: none;
}
.toggle.leaf { visibility: hidden; }
.node-check { accent-color: var(--accent); flex: 0 0 auto; }
.node-name { overflow: hidden; text-overflow: ellipsis; }
.node-name.removed { text-decoration: line-through; color: var(--muted); }
.badge {
  font-size: 10.5px; padding: 1px 7px; border-radius: 999px; margin-left: 6px;
  border: 1px solid var(--border); color: var(--muted); flex: 0 0 auto;
}
.badge.dead { color: var(--danger); border-color: rgba(229,100,75,0.5); background: rgba(229,100,75,0.1); }
.badge.count { color: var(--accent-2); border-color: rgba(255,180,84,0.4); }
.node-children { margin-left: 18px; border-left: 1px dashed var(--border); }
.node-children.collapsed { display: none; }
.match { background: rgba(246,130,31,0.18); border-radius: 4px; }

.explainer {
  margin-top: 26px; background: var(--panel); border: 1px solid var(--border);
  border-radius: 12px; padding: 18px 22px;
}
.explainer h2 { font-size: 15px; margin: 0 0 8px; }
.explainer ul { margin: 0; padding-left: 18px; color: var(--muted); }
.explainer li { margin: 6px 0; }
.explainer strong { color: var(--text); }

.site-footer { max-width: 1080px; margin: 10px auto 40px; padding: 0 28px; color: var(--muted); font-size: 12.5px; }

.toast {
  position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%);
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  padding: 10px 16px; border-radius: 10px; font-size: 13px; box-shadow: 0 10px 30px rgba(0,0,0,0.4);
  opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(-4px); }
.error-banner {
  background: rgba(229,100,75,0.12); border: 1px solid rgba(229,100,75,0.45);
  color: #f3c1b6; padding: 12px 16px; border-radius: 10px; margin-top: 14px; font-size: 13.5px;
}