:root{
  --bg1: #080b12;
  --bg2: #0d0f1a;
  --card: #0f1625;
  --muted: #9fb2c8;
  --text: #eaf2ff;
  --accent: #6cc0ff;
  --accent2: #7b61ff;
  --danger-bg: #1d0c12;
  --danger: #ff3b3b;
  --border: #203049;
}

@keyframes bgShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
@keyframes neonPulse {
  0% { text-shadow: 0 0 4px var(--danger), 0 0 10px var(--danger); }
  100% { text-shadow: 0 0 10px var(--danger), 0 0 20px var(--danger); }
}
@keyframes blink {
  50% { opacity: .35; }
}

*{ box-sizing: border-box; }
html, body {
  margin:0; padding:0; color:var(--text);
  background: linear-gradient(120deg, var(--bg1), var(--bg2), #0a1020);
  background-size: 300% 300%;
  animation: bgShift 18s ease infinite;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans KR", "Apple SD Gothic Neo", sans-serif;
}

.topbar {
  display:flex; align-items:center; justify-content:space-between;
  padding: 14px 18px; border-bottom:1px solid var(--border);
  position:sticky; top:0; backdrop-filter: blur(10px);
  background: linear-gradient(180deg, rgba(10,16,32,0.9), rgba(10,16,32,0.6));
}
.brand { font-weight:800; letter-spacing:.4px; }
.tabs { display:flex; gap:10px; }
.tab {
  background:linear-gradient(135deg, rgba(124,97,255,.15), rgba(108,192,255,.15));
  color:var(--text); border:1px solid var(--border); padding:8px 12px; border-radius:12px; cursor:pointer;
}
.tab.active { background:linear-gradient(135deg, var(--accent2), var(--accent)); color:#0b1220; font-weight:800; box-shadow: 0 6px 20px rgba(108,192,255,.35); }

main { max-width: 1400px; margin: 24px auto; padding: 0 16px; }
h1 { font-size: 1.5rem; margin: 0 0 10px; }
h2 { font-size: 1.15rem; margin: 0 0 12px; }
.hint { color: var(--muted); margin: 6px 0 18px; }

.row { display:flex; gap:10px; align-items:center; }
.row input[type="text"] {
  flex:1; padding:14px; border-radius:14px; border:1px solid var(--border);
  background:#0c1422; color:var(--text); outline:none;
  box-shadow: inset 0 0 0 999px rgba(255,255,255,0); transition: box-shadow .2s ease;
}
.row input[type="text"]:focus { box-shadow: 0 0 0 2px rgba(124,97,255,.35); }

.row button, button {
  padding:12px 16px; border-radius:12px; border:1px solid var(--border);
  background:linear-gradient(135deg, rgba(124,97,255,.25), rgba(108,192,255,.25));
  color:var(--text); cursor:pointer; transition: transform .08s ease, box-shadow .2s ease;
}
button:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(108,192,255,.25); }
button.danger { border-color:#3a1920; background:linear-gradient(135deg, rgba(255,59,59,.12), rgba(255,59,59,.08)); color:var(--danger); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 16px;
  margin-bottom: 20px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.35);
}

.summary {
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-weight:600;
  gap:8px;
  margin-bottom:14px;
}
.summary-count { color: var(--muted); font-size:.85rem; }

.result-grid {
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap:12px;
}
.result-card {
  border:1px solid var(--border);
  border-radius:16px;
  background:linear-gradient(145deg, rgba(15,22,37,0.95), rgba(12,17,29,0.85));
  padding:16px;
  min-height:170px;
  display:flex;
  flex-direction:column;
  gap:10px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
}
.result-card.bad {
  border-color: rgba(255,59,59,.6);
  box-shadow: 0 12px 32px rgba(255,59,59,.25);
}
.result-card .result-header {
  display:flex;
  justify-content:space-between;
  gap:10px;
  align-items:flex-start;
}
.result-label {
  font-size:1.05rem;
  font-weight:700;
  line-height:1.2;
}
.result-root {
  font-size:.85rem;
  color:var(--muted);
  margin-top:4px;
  word-break:break-all;
}
.result-status {
  font-size:.8rem;
  padding:4px 12px;
  border-radius:999px;
  letter-spacing:.04em;
  border:1px solid transparent;
  text-transform:uppercase;
  white-space:nowrap;
}
.result-status.ok { border-color:rgba(68,225,162,.6); color:#44e1a2; background:rgba(68,225,162,.12); }
.result-status.warn { border-color:rgba(255,166,0,.5); color:#ffc46b; background:rgba(255,166,0,.12); }
.result-status.fail { border-color:rgba(255,59,59,.4); color:var(--danger); background:rgba(255,59,59,.12); }
.result-fields {
  display:grid;
  grid-template-columns:1fr;
  gap:8px;
  font-size:.9rem;
}
.result-field {
  display:flex;
  flex-direction:column;
  gap:2px;
}
.result-field strong {
  font-size:.7rem;
  text-transform:uppercase;
  letter-spacing:.08em;
  color:var(--muted);
}
.result-field span {
  word-break:break-all;
}
.result-empty {
  color:var(--muted);
  font-size:.9rem;
  margin:0;
}

#results.two-column .result-grid {
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
}
#results.dense .result-card {
  padding:12px;
}
#results.dense .result-label {
  font-size:.95rem;
}
#results.dense .result-fields {
  font-size:.8rem;
}

table { width:100%; border-collapse: collapse; }
th, td { border-bottom:1px solid var(--border); padding:12px 12px; text-align:left; white-space:nowrap; }
thead th {
  background: linear-gradient(180deg, #0f1930, #0d1424);
  position:sticky; top:0; z-index:1; letter-spacing:.2px;
}

tr.bad td { background: linear-gradient(90deg, rgba(255,59,59,.10), rgba(255,59,59,.05)); }
.neon-red { color: var(--danger) !important; text-shadow: 0 0 6px var(--danger), 0 0 16px var(--danger); animation: neonPulse 1.2s ease-in-out infinite alternate; }
.blink { animation: blink 1.1s linear infinite; }

td.ok { color: #44e1a2; text-shadow: 0 0 6px rgba(68,225,162,.3); }
td.fail { color: var(--danger); }

footer { text-align:center; color: var(--muted); padding: 24px 0 40px; }

.tab-panel { display:none; }
.tab-panel.active { display:block; }

.settings-grid.single { display:grid; grid-template-columns: 1fr; gap:16px; }
.hidden { display:none; }

.add-row input[type="text"]{ flex: 1; }

@media (max-width: 980px){
  main { max-width: 100%; }
  .result-grid { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
  #results.dense .result-fields { font-size:.78rem; }
}