:root {
  --bg: #0a0a14;
  --bg-2: #12122a;
  --card: rgba(255,255,255,0.04);
  --border: rgba(255,255,255,0.10);
  --text: #eef0ff;
  --muted: #9aa0c7;
  --accent: #8b7bff;
  --accent-2: #4dd6ff;
  --good: #4ade80;
  --warn: #fbbf24;
  --bad: #fb7185;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 800px at 70% -10%, #1b1b3d 0%, var(--bg) 55%) fixed;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.stars {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    radial-gradient(1px 1px at 20% 30%, #fff, transparent),
    radial-gradient(1px 1px at 80% 20%, #cfe, transparent),
    radial-gradient(1px 1px at 50% 70%, #fff, transparent),
    radial-gradient(1px 1px at 35% 85%, #bcf, transparent),
    radial-gradient(1px 1px at 65% 55%, #fff, transparent);
  opacity: 0.35;
}

.app {
  position: relative; z-index: 1;
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 20px 64px;
}

.hero { text-align: center; margin-bottom: 32px; }
.logo {
  font-size: 14px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--accent-2); font-weight: 600; margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(26px, 5vw, 38px); line-height: 1.15; margin: 0 0 14px;
  background: linear-gradient(120deg, #fff, var(--accent) 60%, var(--accent-2));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.sub { color: var(--muted); font-size: 16px; line-height: 1.6; margin: 0 auto; max-width: 540px; }
.sub strong { color: var(--text); }

.dropzone {
  border: 1.5px dashed var(--border);
  background: var(--card);
  border-radius: 20px;
  padding: 44px 24px;
  text-align: center;
  transition: border-color .2s, background .2s, transform .1s;
  cursor: pointer;
  backdrop-filter: blur(6px);
}
.dropzone:hover, .dropzone:focus-visible { border-color: var(--accent); background: rgba(139,123,255,0.07); outline: none; }
.dropzone.drag { border-color: var(--accent-2); background: rgba(77,214,255,0.10); transform: scale(1.01); }
.dz-icon { font-size: 44px; margin-bottom: 8px; }
.dz-title { font-size: 18px; font-weight: 600; margin: 4px 0; }
.dz-or { color: var(--muted); margin: 8px 0; font-size: 13px; }
.dz-buttons { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.dz-hint { color: var(--muted); font-size: 12.5px; margin-top: 14px; }

.btn {
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  padding: 11px 20px; border-radius: 12px; font-size: 14.5px; font-weight: 600;
  cursor: pointer; transition: transform .08s, background .15s, border-color .15s;
}
.btn:hover { background: rgba(255,255,255,0.10); }
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: linear-gradient(120deg, var(--accent), #6d5cff);
  border-color: transparent; color: #fff;
}
.btn-primary:hover { background: linear-gradient(120deg, #9a8bff, #7d6cff); }
.btn-ghost { background: transparent; }
.btn-lg { padding: 14px 28px; font-size: 15.5px; }

.config { margin-top: 24px; background: var(--card); border: 1px solid var(--border); border-radius: 18px; padding: 8px 20px 20px; }
.row { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--border); }
.row:last-of-type { border-bottom: none; }
.label { color: var(--muted); font-size: 14px; }
.value { color: var(--text); font-weight: 600; }

.seg { display: inline-flex; background: rgba(0,0,0,0.25); border-radius: 11px; padding: 3px; gap: 2px; }
.seg-btn { border: none; background: transparent; color: var(--muted); padding: 8px 14px; border-radius: 9px; font-size: 13.5px; cursor: pointer; font-weight: 600; }
.seg-btn.active { background: var(--accent); color: #fff; }

input[type=range] { width: 160px; accent-color: var(--accent); }

.actions { display: flex; gap: 12px; margin-top: 20px; }
.actions .btn-lg { flex: 1; }

.progress-wrap { margin-top: 24px; }
.bar { height: 10px; background: rgba(0,0,0,0.3); border-radius: 99px; overflow: hidden; }
.bar-fill { height: 100%; width: 0%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width .2s; }
.progress-text { color: var(--muted); font-size: 13.5px; text-align: center; margin-top: 10px; }

.results { margin-top: 24px; }
.results-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
#resultsSummary { color: var(--text); font-weight: 600; }
.results-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; max-height: 360px; overflow: auto; }
.result {
  display: flex; align-items: center; gap: 12px;
  background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 10px 14px;
}
.result .name { flex: 1; font-size: 13.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.result .meta { font-size: 12px; color: var(--muted); }
.result .status { font-size: 12px; font-weight: 600; }
.result .status.ok { color: var(--good); }
.result .status.skip { color: var(--warn); }
.result .status.err { color: var(--bad); }
.result a.dl { color: var(--accent-2); text-decoration: none; font-size: 13px; font-weight: 600; }

.footer { margin-top: 48px; text-align: center; color: var(--muted); font-size: 12.5px; }
.dot { opacity: 0.5; margin: 0 6px; }

@media (max-width: 520px) {
  .row { flex-direction: column; align-items: flex-start; gap: 10px; }
  .seg { width: 100%; justify-content: space-between; }
}