:root {
  --bg: #0f1220;
  --panel: #171a2b;
  --panel-2: #1f2338;
  --text: #e8eaf3;
  --muted: #9aa0bd;
  --accent: #5b8cff;
  --accent-2: #3f6fe0;
  --good: #34d399;
  --bad: #f87171;
  --border: #2a2f49;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app {
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 20px 24px;
  flex: 1;
}

header { text-align: center; margin-bottom: 28px; }

h1 {
  margin: 0;
  font-size: 2.4rem;
  letter-spacing: 1px;
  background: linear-gradient(90deg, #7aa2ff, #b69cff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.sub { color: var(--muted); margin: 8px 0 0; }

.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 44px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color .15s, background .15s, transform .05s;
  outline: none;
}
.dropzone:hover, .dropzone:focus-visible { border-color: var(--accent); background: var(--panel-2); }
.dropzone.drag { border-color: var(--accent); background: var(--panel-2); transform: scale(1.01); }

.dz-icon { font-size: 2rem; color: var(--accent); }
.dz-title { font-size: 1.15rem; margin: 10px 0 2px; }
.dz-or { color: var(--muted); margin: 0 0 6px; }
.dz-or .link { color: var(--accent); text-decoration: underline; }
.dz-hint { color: var(--muted); font-size: .82rem; margin: 8px 0 0; }

.controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 18px;
}

.fmt-group { display: flex; align-items: center; gap: 8px; }
.ctl-label { color: var(--muted); font-size: .9rem; margin-right: 4px; }

.fmt-btn {
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  padding: 8px 16px;
  border-radius: 9px;
  cursor: pointer;
  font-size: .9rem;
  font-weight: 600;
  transition: background .15s, border-color .15s, color .15s;
}
.fmt-btn:hover { border-color: var(--accent); }
.fmt-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.quality { display: flex; align-items: center; gap: 10px; }
.quality label { color: var(--muted); font-size: .85rem; white-space: nowrap; }
.quality #qualityVal { color: var(--text); font-variant-numeric: tabular-nums; }
.quality input[type="range"] { accent-color: var(--accent); cursor: pointer; }

.note {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: .85rem;
  text-align: center;
}

.toolbar { display: flex; gap: 10px; margin: 20px 0 6px; }

.btn {
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  padding: 10px 16px;
  border-radius: 10px;
  cursor: pointer;
  font-size: .92rem;
  transition: background .15s, border-color .15s, opacity .15s;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.btn.primary:hover { background: var(--accent-2); }
.btn.ghost { background: transparent; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.list { list-style: none; padding: 0; margin: 14px 0 0; display: grid; gap: 10px; }

.item {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  align-items: center;
  gap: 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
}

.thumb {
  width: 56px; height: 56px;
  border-radius: 8px;
  object-fit: cover;
  background: var(--panel-2);
  border: 1px solid var(--border);
}

.meta { min-width: 0; }
.meta .name { font-size: .92rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.meta .sizes { color: var(--muted); font-size: .8rem; margin-top: 3px; }
.meta .sizes .arrow { color: var(--accent); }
.meta .err { color: var(--bad); font-size: .8rem; margin-top: 3px; }
.meta .pending { color: var(--muted); font-size: .8rem; margin-top: 3px; }

.spinner {
  width: 16px; height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  display: inline-block;
  vertical-align: middle;
  margin-right: 6px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.dl {
  text-decoration: none;
  color: #fff;
  background: var(--good);
  padding: 8px 14px;
  border-radius: 9px;
  font-size: .85rem;
  font-weight: 600;
  white-space: nowrap;
}
.dl.disabled { background: var(--panel-2); color: var(--muted); pointer-events: none; }

.foot { text-align: center; color: var(--muted); font-size: .78rem; padding: 16px; }