@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Sans:wght@400;500;600;700&display=swap");

:root {
  --bg: #07090f;
  --panel: #10131c;
  --panel-2: #161a26;
  --line: #242a3a;
  --text: #e7edf7;
  --muted: #8b96ad;
  --good: #3ee0b2;
  --warn: #ffb020;
  --bad: #ff5d6c;
  --blue: #6ea8ff;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { min-height: 100%; }

body {
  font-family: "IBM Plex Sans", sans-serif;
  background: var(--bg);
  color: var(--text);
  text-transform: none;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 50% 40% at 10% -10%, rgba(62, 224, 178, 0.08), transparent),
    radial-gradient(ellipse 40% 30% at 100% 0%, rgba(110, 168, 255, 0.08), transparent);
  z-index: 0;
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
button, input, textarea, select { font: inherit; color: inherit; }

.lab-top {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 16px clamp(16px, 3vw, 36px);
  border-bottom: 1px solid var(--line);
  background: rgba(7, 9, 15, 0.88);
  backdrop-filter: blur(12px);
}

.brand {
  font-family: "IBM Plex Mono", monospace;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.brand span { color: var(--good); }

.lab-top nav { display: flex; gap: 16px; flex-wrap: wrap; font-size: 13px; }
.lab-top nav a { color: var(--muted); text-decoration: none; }
.lab-top nav a:hover, .lab-top nav a.active { color: var(--text); }

.shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: calc(100vh - 57px);
}

.side {
  border-right: 1px solid var(--line);
  padding: 18px 12px;
  background: rgba(10, 12, 18, 0.7);
}

.side p {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 6px 10px 10px;
}

.side button {
  display: block;
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  color: var(--muted);
  padding: 9px 10px;
  border-radius: 8px;
  cursor: pointer;
  margin-bottom: 2px;
}

.side button:hover { background: rgba(255,255,255,0.04); color: var(--text); }
.side button.active {
  background: rgba(62, 224, 178, 0.12);
  color: var(--good);
}

.main { padding: 28px clamp(16px, 3vw, 36px) 64px; max-width: 1180px; }

.kicker {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  color: var(--good);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

h1 { font-size: clamp(28px, 4vw, 40px); letter-spacing: -0.03em; margin-bottom: 8px; }
.lede { color: var(--muted); max-width: 720px; line-height: 1.6; margin-bottom: 22px; }

.privacy {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  font-size: 12px;
  color: var(--good);
  border: 1px solid rgba(62, 224, 178, 0.3);
  background: rgba(62, 224, 178, 0.08);
  padding: 6px 10px;
  border-radius: 999px;
  margin-bottom: 18px;
}

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

.drop {
  border: 1px dashed #334155;
  background: var(--panel);
  border-radius: 14px;
  padding: 36px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.hidden { display: none !important; }
.muted { color: var(--muted); }

.drop:hover, .drop.drag {
  border-color: var(--good);
  background: rgba(62, 224, 178, 0.06);
}

.drop strong { display: block; font-size: 18px; margin-bottom: 6px; }
.drop span { color: var(--muted); font-size: 13px; }

.row-btns { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }

.btn {
  background: var(--panel-2);
  border: 1px solid var(--line);
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
}
.btn:hover { border-color: var(--blue); }
.btn.good {
  background: rgba(62, 224, 178, 0.12);
  border-color: rgba(62, 224, 178, 0.4);
  color: var(--good);
}

.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 10px;
  margin: 18px 0;
}

.tile {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
}
.tile label {
  display: block;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.tile b {
  font-family: "IBM Plex Mono", monospace;
  font-size: 14px;
  word-break: break-all;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  margin-top: 12px;
}

.panel h2 {
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
}

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 7px 6px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 500; width: 34%; }
td { font-family: "IBM Plex Mono", monospace; word-break: break-word; }

.warn { color: var(--warn); }
.bad { color: var(--bad); }
.good { color: var(--good); }

.hex {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  line-height: 1.55;
  white-space: pre;
  overflow: auto;
  background: #070b12;
  padding: 12px;
  border-radius: 8px;
  color: #9ec1ff;
}

.hist {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 84px;
  margin-top: 8px;
}
.hist i {
  flex: 1;
  background: linear-gradient(180deg, var(--good), #1a6b55);
  display: block;
  min-height: 2px;
  border-radius: 2px 2px 0 0;
}

textarea, .field {
  width: 100%;
  background: #070b12;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
  outline: none;
  min-height: 140px;
  resize: vertical;
}
input.field { min-height: 0; }
textarea:focus, .field:focus { border-color: var(--blue); }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

pre.json {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  background: #070b12;
  padding: 12px;
  border-radius: 8px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

.score {
  font-family: "IBM Plex Mono", monospace;
  font-size: 42px;
  color: var(--good);
}

@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; }
  .side {
    display: flex;
    overflow: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    gap: 4px;
    padding: 10px;
  }
  .side p { display: none; }
  .side button { width: auto; white-space: nowrap; margin: 0; }
  .grid-2 { grid-template-columns: 1fr; }
}