:root {
  --bg: #0d1117;
  --panel: #161b22;
  --line: #262d38;
  --text: #e6edf3;
  --dim: #8b949e;
  --accent: #58a6ff;
  --good: #3fb950;
  --warn: #d29922;
  --bad: #f85149;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: radial-gradient(900px 500px at 50% -15%, #1b2735 0%, var(--bg) 60%);
  color: var(--text);
  font: 16px/1.55 ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  min-height: 100vh;
}

main { max-width: 740px; margin: 0 auto; padding: 48px 20px 80px; }

header { text-align: center; margin-bottom: 28px; }
h1 { font-size: 30px; margin: 0 0 6px; letter-spacing: -0.02em; }
.sub { color: var(--dim); margin: 0; font-size: 15px; }

.banner {
  background: #2d2410;
  border: 1px solid #5c4813;
  color: #e3b341;
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 14px;
  margin-bottom: 20px;
}
.banner code { background: rgba(0,0,0,.3); padding: 1px 5px; border-radius: 4px; }

.drop {
  border: 2px dashed var(--line);
  border-radius: 16px;
  background: var(--panel);
  min-height: 240px;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  overflow: hidden;
  position: relative;
}
.drop:hover, .drop:focus-visible { border-color: var(--accent); outline: none; }
.drop.over { border-color: var(--accent); background: #17202c; }
.drop-inner { text-align: center; padding: 32px; }
.drop-inner p { margin: 4px 0; }
.glyph { font-size: 44px; display: block; margin-bottom: 10px; }
.hint { color: var(--dim); font-size: 14px; }
#preview { width: 100%; max-height: 420px; object-fit: contain; display: block; background: #000; }

.actions { display: flex; gap: 10px; justify-content: center; margin: 20px 0; }
button {
  background: var(--accent);
  color: #05101d;
  border: 0;
  border-radius: 9px;
  padding: 11px 26px;
  font-size: 15px;
  font-weight: 650;
  cursor: pointer;
}
button:disabled { opacity: .4; cursor: not-allowed; }
button.ghost { background: transparent; color: var(--dim); border: 1px solid var(--line); }

.result {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 24px;
}
.verdict-name { font-size: 26px; font-weight: 700; margin: 0 0 2px; }
.verdict-meta { color: var(--dim); font-size: 14px; margin: 0 0 18px; }

.bar { height: 8px; background: #0b0f14; border-radius: 99px; overflow: hidden; margin: 6px 0 4px; }
.bar > div { height: 100%; border-radius: 99px; transition: width .4s; }
.conf-label { display: flex; justify-content: space-between; font-size: 13px; color: var(--dim); }

.why { margin: 18px 0 0; font-size: 15px; }
.section-title { font-size: 12px; letter-spacing: .09em; text-transform: uppercase; color: var(--dim); margin: 22px 0 8px; }
.features { margin: 0; padding-left: 20px; color: var(--dim); font-size: 14px; }
.features li { margin-bottom: 4px; }
.runner { font-size: 14px; color: var(--dim); }
.stages { font-size: 12px; color: var(--dim); border-top: 1px solid var(--line); margin-top: 20px; padding-top: 12px; }
.err { color: var(--bad); }

.catalog { margin-top: 32px; }
.catalog summary { cursor: pointer; color: var(--dim); font-size: 14px; }
.catalog ul { columns: 2; font-size: 14px; color: var(--dim); margin-top: 12px; padding-left: 18px; }

.spinner {
  display: inline-block; width: 14px; height: 14px; margin-right: 8px;
  border: 2px solid rgba(255,255,255,.25); border-top-color: #05101d;
  border-radius: 50%; animation: spin .7s linear infinite; vertical-align: -2px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.hidden { display: none !important; }

@media (max-width: 560px) {
  .catalog ul { columns: 1; }
  h1 { font-size: 24px; }
}