:root {
  --bg: #03040a;
  --card: rgba(255, 255, 255, 0.045);
  --card-2: rgba(255, 255, 255, 0.08);
  --border: rgba(255, 255, 255, 0.10);
  --border-hi: rgba(255, 255, 255, 0.22);
  --fg: #e8ecf4;
  --muted: #8b93a7;
  --accent: #6d5bff;
  --accent-2: #00d4ff;
  --accent-3: #ff5d7a;
  --ok: #2dd4a7;
  --err: #ff5d7a;
  --radius: 18px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--fg);
  background: var(--bg);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ================= BACKGROUND ================= */
.bg { position: fixed; inset: 0; z-index: -3; overflow: hidden; background: var(--bg); }

.bg .grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(ellipse at 50% -10%, #000 0%, transparent 72%);
          mask-image: radial-gradient(ellipse at 50% -10%, #000 0%, transparent 72%);
}

/* twinkling stars */
.stars { position: fixed; inset: 0; z-index: -2; pointer-events: none; }
.stars span {
  position: absolute; border-radius: 50%; background: #fff;
  animation: twinkle ease-in-out infinite;
}
@keyframes twinkle { 0%, 100% { opacity: .12; } 50% { opacity: .9; } }

/* shooting stars */
.shooting-star {
  position: fixed; z-index: -1; width: 140px; height: 1px; border-radius: 1px;
  background: linear-gradient(90deg, #fff, transparent);
  transform: rotate(-40deg); opacity: 0; pointer-events: none;
  animation: shoot linear infinite;
}
.shooting-star.ss1 { top: 12%; left: 70%; animation-duration: 9s; animation-delay: 2s; }
.shooting-star.ss2 { top: 4%; left: 40%; animation-duration: 12s; animation-delay: 6s; }
@keyframes shoot {
  0% { transform: translate3d(0,0,0) rotate(-40deg); opacity: 0; }
  3% { opacity: 1; }
  9% { transform: translate3d(-45vw, 32vw, 0) rotate(-40deg); opacity: 0; }
  100% { transform: translate3d(-45vw, 32vw, 0) rotate(-40deg); opacity: 0; }
}

/* rising particles */
.particles { position: fixed; inset: 0; z-index: -1; pointer-events: none; }
.particles span {
  position: absolute; border-radius: 50%;
  background: rgba(255,255,255,.5); animation: rise linear infinite;
}
@keyframes rise {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  15% { opacity: .7; }
  100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

.wrap { max-width: 780px; margin: 0 auto; padding: 48px 20px 90px; }

/* ================= HEADER ================= */
header { text-align: center; margin-bottom: 34px; }
.logo {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 15px; font-weight: 600; letter-spacing: .3px; color: var(--muted);
}
.logo b { color: var(--fg); font-weight: 800; }
.logo .mark {
  width: 28px; height: 28px; border-radius: 9px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; font-weight: 800; font-size: 15px;
  animation: glow 2.6s ease-in-out infinite;
}
@keyframes glow {
  0%, 100% { box-shadow: 0 4px 18px rgba(109,91,255,.45); }
  50% { box-shadow: 0 4px 30px rgba(0,212,255,.7); }
}
h1 {
  font-size: 38px; font-weight: 800; margin-top: 16px; letter-spacing: -.5px;
  background: linear-gradient(120deg, #fff 15%, var(--accent-2) 45%, var(--accent) 70%, #fff 95%);
  background-size: 250% 100%;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: shimmer 6s ease-in-out infinite;
}
@keyframes shimmer { 0%,100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }
header p { color: var(--muted); margin-top: 8px; font-size: 15px; }

#health {
  display: inline-flex; align-items: center; gap: 7px;
  margin-top: 16px; padding: 6px 15px; border-radius: 999px;
  font-size: 12.5px; color: var(--muted);
  background: var(--card); border: 1px solid var(--border);
}
#health .led { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); transition: all .3s; }
#health.ok .led { background: var(--ok); box-shadow: 0 0 10px var(--ok); animation: blink 1.8s ease-in-out infinite; }
#health.bad .led { background: var(--err); box-shadow: 0 0 10px var(--err); }
@keyframes blink { 50% { opacity: .4; } }

/* ================= DROPZONE ================= */
.dropzone {
  position: relative; border: 2px dashed var(--border); border-radius: var(--radius);
  background: var(--card); backdrop-filter: blur(14px);
  padding: 46px 24px; text-align: center; cursor: pointer;
  transition: border-color .25s, background .25s, transform .18s, box-shadow .25s;
}
.dropzone:hover { border-color: var(--border-hi); background: var(--card-2); }
.dropzone.drag {
  border-color: var(--accent-2); background: rgba(0,212,255,.07);
  transform: scale(1.015); box-shadow: 0 0 50px rgba(0,212,255,.25);
}

.ring { position: relative; width: 92px; height: 92px; margin: 0 auto 18px; display: grid; place-items: center; }
.ring::before {
  content: ""; position: absolute; inset: -7px; border-radius: 50%;
  background: conic-gradient(from 0deg, var(--accent), var(--accent-2), transparent 55%, var(--accent));
  animation: spin 3.2s linear infinite;
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 3px), #000 calc(100% - 2px));
          mask: radial-gradient(farthest-side, transparent calc(100% - 3px), #000 calc(100% - 2px));
}
@keyframes spin { to { transform: rotate(360deg); } }
.ring .ic {
  width: 74px; height: 74px; border-radius: 19px; position: relative; z-index: 1;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 12px 34px rgba(109,91,255,.45);
  animation: bob 3s ease-in-out infinite;
}
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-7px); } }
.dropzone:hover .ring .ic { animation-duration: 1.2s; }

.dropzone h2 { font-size: 19px; font-weight: 700; }
.dropzone p { color: var(--muted); font-size: 13.5px; margin-top: 7px; }
.dropzone .kbd {
  display: inline-block; padding: 2px 8px; margin: 0 2px; border-radius: 6px;
  background: var(--card-2); border: 1px solid var(--border); font-family: monospace; font-size: 12px;
}

/* ================= QUEUE ================= */
.queue { margin-top: 26px; display: flex; flex-direction: column; gap: 14px; }
.item {
  display: flex; align-items: flex-start; gap: 14px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 15px; padding: 14px 16px; backdrop-filter: blur(12px);
  animation: pop .35s cubic-bezier(.2,.9,.3,1.2);
}
@keyframes pop { from { opacity: 0; transform: translateY(12px) scale(.97); } }
.item .thumb {
  width: 50px; height: 50px; border-radius: 11px; flex: 0 0 auto;
  background: var(--card-2); border: 1px solid var(--border);
  object-fit: cover; display: grid; place-items: center; overflow: hidden; font-size: 22px;
}
.item .thumb img { width: 100%; height: 100%; object-fit: cover; }
.item .meta { flex: 1; min-width: 0; }
.item .name { font-size: 14px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.item .sub { font-size: 12px; color: var(--muted); margin-top: 3px; word-break: break-all; }
.item .bar { height: 4px; border-radius: 4px; background: var(--card-2); margin-top: 9px; overflow: hidden; }
.item .bar > div {
  height: 100%; width: 0; border-radius: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent));
  background-size: 200% 100%; animation: barflow 1.4s linear infinite;
  transition: width .2s;
}
@keyframes barflow { to { background-position: -200% 0; } }
.item .state { flex: 0 0 auto; font-size: 12px; font-weight: 700; padding-top: 2px; }
.item .state.ok { color: var(--ok); }
.item .state.err { color: var(--err); }
.item .actions { display: flex; gap: 6px; margin-top: 10px; flex-wrap: wrap; }

.btn {
  border: 1px solid var(--border); background: var(--card-2); color: var(--fg);
  border-radius: 9px; padding: 7px 13px; font-size: 12.5px; font-weight: 600;
  cursor: pointer; transition: background .15s, border-color .15s, transform .1s; white-space: nowrap;
}
.btn:hover { background: var(--border-hi); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn.primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); border: none; color: #fff; }
.btn.primary:hover { filter: brightness(1.12); }

.preview { margin-top: 12px; border-radius: 12px; overflow: hidden; border: 1px solid var(--border); background: #000; }
.preview img, .preview video { width: 100%; display: block; max-height: 340px; object-fit: contain; }
.preview audio { width: 100%; }
.preview .pfail { padding: 20px; text-align: center; color: var(--muted); font-size: 13px; }

/* ================= HISTORY ================= */
.history { margin-top: 40px; }
.history h3 { font-size: 12px; text-transform: uppercase; letter-spacing: 1.2px; color: var(--muted); margin-bottom: 12px; }
.history .empty { color: var(--muted); font-size: 13px; text-align: center; padding: 22px; }
.history .row {
  display: flex; align-items: center; gap: 12px; padding: 10px 13px;
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  margin-bottom: 8px; font-size: 13px;
}
.history .row .u { flex: 1; min-width: 0; color: var(--accent-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-family: monospace; font-size: 12px; }

footer { text-align: center; margin-top: 50px; color: var(--muted); font-size: 12.5px; }

.toast {
  position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%);
  background: #10121a; border: 1px solid var(--border-hi); color: var(--fg);
  padding: 11px 20px; border-radius: 11px; font-size: 13.5px;
  opacity: 0; pointer-events: none; transition: opacity .25s, transform .25s; z-index: 99;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(-4px); }
.toast.err { border-color: var(--err); }

@media (max-width: 560px) { h1 { font-size: 27px; } .dropzone { padding: 34px 16px; } }