:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel2: #1d212b;
  --line: #262b36;
  --text: #e6e8ee;
  --mute: #8b93a3;
  --accent: #5eead4;
  --crit: #f87171;
  --warn: #fbbf24;
  --notice: #7dd3fc;
  --ok: #34d399;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }

header {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  padding: 14px 22px; border-bottom: 1px solid var(--line);
  position: sticky; top: 0; background: rgba(15,17,21,.92); backdrop-filter: blur(6px); z-index: 5;
}
.brand { font-size: 19px; }
.brand b { letter-spacing: .5px; }
.brand .sub { color: var(--mute); font-size: 13px; margin-left: 10px; }
.pill {
  margin-left: auto; font-size: 12px; color: var(--ok);
  border: 1px solid rgba(52,211,153,.35); border-radius: 999px; padding: 3px 10px;
}

#tabs { display: flex; gap: 6px; }
#tabs button {
  background: none; border: 1px solid transparent; color: var(--mute);
  font: inherit; font-size: 14px; padding: 6px 12px; border-radius: 8px; cursor: pointer;
}
#tabs button:hover { color: var(--text); }
#tabs button.active { color: var(--text); background: var(--panel2); border-color: var(--line); }
#tabs .chip { margin-left: 6px; }

main { max-width: 1320px; margin: 0 auto; padding: 18px 22px 60px; }
.panel { display: none; }
.panel.active { display: block; }

textarea {
  width: 100%; min-height: 170px; resize: vertical;
  background: var(--panel); color: var(--text); border: 1px solid var(--line);
  border-radius: 12px; padding: 12px 14px;
  font: 13.5px/1.55 ui-monospace, "Cascadia Mono", Consolas, monospace;
}
textarea:focus { outline: 1px solid var(--accent); }

.btnrow { display: flex; gap: 8px; align-items: center; margin-top: 8px; flex-wrap: wrap; }
.btnrow .spacer { flex: 1; }
button {
  background: var(--panel2); color: var(--text); border: 1px solid var(--line);
  border-radius: 8px; padding: 6px 13px; font: inherit; font-size: 13.5px; cursor: pointer;
}
button:hover { border-color: var(--accent); }
.ghostbtn { background: none; }

.meta { display: flex; gap: 6px; flex-wrap: wrap; margin: 14px 0 4px; }
.chip {
  display: inline-block; font-size: 12px; line-height: 1.3;
  background: var(--panel2); border: 1px solid var(--line);
  border-radius: 999px; padding: 3px 9px; color: var(--text);
}
.chip.lang { border-color: var(--accent); color: var(--accent); }
.chip.hint { color: var(--warn); border-color: rgba(251,191,36,.4); }
.chiprow { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 10px; }

.banner { border-radius: 10px; padding: 10px 14px; font-size: 14px; margin-top: 12px; }
.banner.bad { background: rgba(248,113,113,.12); border: 1px solid rgba(248,113,113,.45); }
.banner.mid { background: rgba(125,211,252,.10); border: 1px solid rgba(125,211,252,.35); }
.banner.good { background: rgba(52,211,153,.10); border: 1px solid rgba(52,211,153,.4); }

.grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 16px; margin-top: 16px; }
.col { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 12px; padding: 14px 16px;
}
.card h3 { margin: 0 0 10px; font-size: 14.5px; font-weight: 600; }
.card h3 .mutetext { font-weight: 400; }

.viewer {
  white-space: pre-wrap; word-wrap: break-word;
  font: 13px/1.7 ui-monospace, "Cascadia Mono", Consolas, monospace;
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
  padding: 12px; max-height: 460px; overflow: auto;
}
.snip { border-bottom: 1px dashed var(--line); padding: 6px 0; }

.ghost, .badge {
  display: inline-block; font: 700 10px/1.5 ui-monospace, Consolas, monospace;
  border-radius: 4px; padding: 0 4px; margin: 0 1px; vertical-align: baseline;
  color: #0f1115;
}
.ghost.sev-critical, .badge.sev-critical { background: var(--crit); }
.ghost.sev-warn, .badge.sev-warn { background: var(--warn); }
.ghost.sev-notice, .badge.sev-notice { background: var(--notice); }

.hl { border-radius: 3px; }
.hl.sev-critical { background: rgba(248,113,113,.28); box-shadow: 0 1px 0 var(--crit); }
.hl.sev-warn { background: rgba(251,191,36,.25); box-shadow: 0 1px 0 var(--warn); }
.hl.sev-notice { background: rgba(125,211,252,.20); box-shadow: 0 1px 0 var(--notice); }

.flash { animation: flash 1.2s ease-out; }
@keyframes flash { 0% { outline: 2px solid var(--accent); } 100% { outline: 2px solid transparent; } }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; color: var(--mute); font-weight: 500; padding: 4px 8px; border-bottom: 1px solid var(--line); }
td { padding: 5px 8px; border-bottom: 1px solid rgba(38,43,54,.6); vertical-align: top; }
tr.frow { cursor: pointer; }
tr.frow:hover td { background: var(--panel2); }
.decoded { color: var(--crit); }

.mutetext { color: var(--mute); font-size: 12px; }
.okline { color: var(--ok); margin: 4px 0; }
.notes { margin: 10px 0 0; padding-left: 18px; color: var(--mute); font-size: 13px; }
.notes li { margin-bottom: 4px; }

.stats { display: flex; gap: 10px; flex-wrap: wrap; }
.stat {
  background: var(--panel2); border: 1px solid var(--line); border-radius: 10px;
  padding: 8px 14px; display: flex; flex-direction: column; min-width: 90px;
}
.stat b { font-size: 17px; }
.stat span { color: var(--mute); font-size: 11.5px; }

.bandrow { margin-top: 12px; }
.band { font-size: 13px; padding: 5px 12px; }
.band-minimal { border-color: rgba(52,211,153,.5); color: var(--ok); }
.band-mild { border-color: rgba(125,211,252,.5); color: var(--notice); }
.band-elevated { border-color: rgba(251,191,36,.5); color: var(--warn); }
.band-strong { border-color: rgba(248,113,113,.5); color: var(--crit); }
.band-tooshort, .band-na { color: var(--mute); }

.tier-3 { border-color: rgba(248,113,113,.5); color: var(--crit); }
.tier-2 { border-color: rgba(251,191,36,.5); color: var(--warn); }
.tier-1 { color: var(--mute); }

.cls-invisible, .cls-smuggle, .cls-control, .cls-mixed { border-color: rgba(248,113,113,.5); }
.cls-bidi, .cls-space, .cls-homoglyph { border-color: rgba(251,191,36,.5); }
.cls-styled { border-color: rgba(125,211,252,.5); }

#cleancard label { display: block; font-size: 13px; margin: 4px 0; color: var(--text); }
#cleancard input { accent-color: var(--accent); margin-right: 6px; }

.roadmap { max-width: 760px; }
.roadmap h2 { margin-top: 0; font-size: 18px; }
.roadmap p { color: var(--mute); }
.roadmap .eta { color: var(--accent); font-size: 12.5px; }

footer {
  border-top: 1px solid var(--line); color: var(--mute);
  text-align: center; font-size: 12.5px; padding: 14px; margin-top: 30px;
}

@media (max-width: 980px) {
  .grid { grid-template-columns: 1fr; }
  header { gap: 10px; }
  .pill { margin-left: 0; }
}