:root {
  --bg: #0e1116;
  --bg-soft: #151a22;
  --card: #1a212c;
  --border: #2a3342;
  --text: #e8edf4;
  --muted: #94a3b8;
  --accent: #6d9bff;
  --accent-2: #b06dff;
  --ok: #34d399;
  --err: #f87171;
  --warn: #fbbf24;
}

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

body {
  background: radial-gradient(1200px 600px at 50% -10%, #1b2330 0%, var(--bg) 55%);
  color: var(--text);
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; font-size: 17px; }
.brand .logo {
  display: grid; place-items: center;
  width: 34px; height: 34px; border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; font-size: 18px;
}
.brand small { display: block; font-size: 10px; color: var(--muted); letter-spacing: .12em; text-transform: uppercase; margin-top: -2px; }
.topbar-note { color: var(--muted); font-size: 13px; }

main { max-width: 1080px; margin: 0 auto; padding: 40px 24px 60px; }

.hero { text-align: center; margin-bottom: 34px; }
.hero h1 { font-size: clamp(26px, 4.5vw, 44px); font-weight: 800; letter-spacing: -.02em; line-height: 1.15; }
.accent {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .sub { color: var(--muted); max-width: 620px; margin: 14px auto 0; font-size: 15.5px; line-height: 1.6; }

.dropzone {
  border: 2px dashed var(--border);
  border-radius: 18px;
  padding: 54px 20px;
  text-align: center;
  cursor: pointer;
  background: rgba(255, 255, 255, .02);
  transition: border-color .15s, background .15s, transform .15s;
}
.dropzone:hover, .dropzone.dragover { border-color: var(--accent); background: rgba(109, 155, 255, .06); }
.dropzone.dragover { transform: scale(1.005); }
.dz-icon {
  width: 64px; height: 64px; margin: 0 auto 16px;
  display: grid; place-items: center;
  border-radius: 50%; font-size: 26px;
  background: linear-gradient(135deg, rgba(109,155,255,.18), rgba(176,109,255,.18));
  border: 1px solid var(--border);
}
.dz-title { font-size: 19px; font-weight: 700; }
.dz-sub { color: var(--muted); font-size: 14px; margin-top: 8px; }
.dz-sub button {
  background: none; border: none; color: var(--accent); font: inherit;
  cursor: pointer; text-decoration: underline; text-underline-offset: 3px;
}

.hidden { display: none !important; }

.progress { margin-top: 26px; padding: 20px; background: var(--card); border: 1px solid var(--border); border-radius: 14px; }
.progress-head { display: flex; justify-content: space-between; font-size: 14px; margin-bottom: 10px; color: var(--text); }
.progress-head span:last-child { color: var(--muted); }
.bar { height: 10px; background: var(--bg-soft); border-radius: 99px; overflow: hidden; }
.bar-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 99px; transition: width .3s ease;
}
.current { margin-top: 10px; font-size: 13px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.model-note { margin-top: 10px; font-size: 12.5px; color: var(--muted); }
.model-note.hidden { display: none; }

.results { margin-top: 34px; }
.results-head { display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; margin-bottom: 16px; }
.results-head h2 { font-size: 22px; font-weight: 700; }
.results-actions { display: flex; align-items: center; gap: 16px; }
.summary { color: var(--muted); font-size: 14px; }

.btn {
  border: none; border-radius: 10px; padding: 10px 18px;
  font: inherit; font-size: 14px; font-weight: 600; cursor: pointer;
  transition: filter .15s, transform .1s;
}
.btn:active { transform: scale(.98); }
.btn.primary { background: linear-gradient(90deg, var(--accent), var(--accent-2)); color: #fff; }
.btn.primary:hover { filter: brightness(1.1); }
.btn.primary:disabled { filter: grayscale(.5) brightness(.7); cursor: default; }
.btn.ghost { background: var(--bg-soft); color: var(--text); border: 1px solid var(--border); }
.btn.ghost:hover { border-color: var(--accent); }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; overflow: hidden; }
.card .frame {
  position: relative; aspect-ratio: 1 / 1;
  background:
    repeating-conic-gradient(#2a3342 0% 25%, #202834 0% 50%) 50% / 22px 22px;
  display: grid; place-items: center;
}
.frame img { max-width: 100%; max-height: 100%; object-fit: contain; transition: opacity .2s; }
.frame img.before { position: absolute; inset: 0; margin: auto; opacity: 0; }
.card:hover .frame img.before { opacity: 1; }
.card:hover .frame img.after { opacity: 0; }
.badge {
  position: absolute; top: 8px; left: 8px;
  font-size: 10.5px; font-weight: 700; letter-spacing: .05em;
  padding: 4px 8px; border-radius: 6px; background: rgba(14,17,22,.75); color: var(--muted);
  border: 1px solid var(--border);
  backdrop-filter: blur(4px);
}
.badge.done { color: var(--ok); }
.badge.error { color: var(--err); }
.badge.processing { color: var(--warn); animation: pulse 1.2s infinite; }
@keyframes pulse { 50% { opacity: .5; } }
.card .meta { padding: 12px 14px; border-top: 1px solid var(--border); }
.meta .name { font-size: 13px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.meta .actions { display: flex; gap: 8px; margin-top: 10px; }
.meta .actions a {
  flex: 1; text-align: center; text-decoration: none;
  font-size: 12.5px; font-weight: 600; padding: 8px 0; border-radius: 8px;
}
a.dl { background: var(--bg-soft); border: 1px solid var(--border); color: var(--text); }
a.dl:hover { border-color: var(--accent); }
.dl.disabled { display: block; text-align: center; font-size: 12px; padding: 8px 0; border-radius: 8px; background: var(--bg-soft); border: 1px solid var(--border); color: var(--muted); cursor: default; }
.meta .error-msg { font-size: 12px; color: var(--err); margin-top: 8px; }

footer { border-top: 1px solid var(--border); padding: 22px; text-align: center; color: var(--muted); font-size: 13px; }
footer a { color: var(--accent); }

.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--card); border: 1px solid var(--err); color: var(--text);
  padding: 12px 20px; border-radius: 10px; font-size: 14px; z-index: 50;
  box-shadow: 0 10px 30px rgba(0,0,0,.5);
}