/* ---------- OSU BD theme ---------- */
:root{
  --pink:#ff5fa2;
  --purple:#9b5cf6;
  --grad:linear-gradient(135deg,#ff5fa2 0%,#c44ce0 55%,#9b5cf6 100%);
  --grad-soft:linear-gradient(135deg,#ff5fa2 0%,#9b5cf6 100%);
  --bg:#f6f5fb;
  --bg2:#efeef7;
  --ink:#2c2a36;
  --muted:#7b7890;
  --line:#e7e4f1;
  --card:#ffffff;
  --shadow:0 18px 50px -22px rgba(80,40,120,.35);
  --radius:22px;
}

*{box-sizing:border-box}
[hidden]{display:none !important}
html,body{margin:0}
body{
  font-family:'Nunito',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  color:var(--ink);
  background:radial-gradient(1200px 700px at 50% -10%,#fff 0%,var(--bg) 45%,var(--bg2) 100%);
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}

/* background decorations */
.bg-deco{
  position:fixed;inset:0;width:100%;height:100%;
  z-index:0;pointer-events:none;
}
.bg-deco circle,.bg-deco rect{
  fill:none;stroke:#cfc9e0;stroke-width:2;opacity:.55;
}

.wrap{
  position:relative;z-index:1;
  max-width:980px;margin:0 auto;padding:46px 22px 70px;
}

/* ---------- brand ---------- */
.brand{text-align:center;margin-bottom:26px}
.logo{
  width:188px;height:188px;display:block;margin:0 auto;
  filter:drop-shadow(0 14px 26px rgba(210,70,140,.30));
}
.tagline{color:var(--muted);font-weight:600;margin:14px 0 0;font-size:15px}

/* ---------- stage layout ---------- */
.stage{
  display:grid;grid-template-columns:minmax(0,360px) minmax(0,1fr);
  gap:22px;align-items:start;justify-content:center;
}
@media(max-width:760px){
  .stage{grid-template-columns:1fr}
}

/* ---------- card ---------- */
.card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);
  padding:22px 22px 24px;display:flex;flex-direction:column;gap:20px;
}
.field{display:flex;flex-direction:column;gap:10px}
.row-field{flex-direction:row;align-items:center;justify-content:space-between}
.field-label{
  font-weight:800;font-size:14px;letter-spacing:.2px;
  display:flex;align-items:center;gap:8px;
}
.hint{font-weight:600;color:var(--muted);font-size:12px}

/* ---------- stars ---------- */
.stars{display:flex;gap:2px;user-select:none}
.star{
  position:relative;width:26px;height:26px;flex:0 0 auto;cursor:pointer;
}
.star .half{position:absolute;top:0;height:100%;width:50%;z-index:2}
.star .half.l{left:0}
.star .half.r{right:0}
.star .empty{position:absolute;inset:0;width:26px;height:26px}
.star .empty path{fill:#e6e2f0;stroke:#d4cee6;stroke-width:1}
.star .fillL,.star .fillR{position:absolute;top:0;height:26px;width:13px;overflow:hidden;opacity:0;transition:opacity .08s}
.star .fillL{left:0}
.star .fillR{right:0}
.star .fillL svg{position:absolute;left:0;top:0;width:26px;height:26px}
.star .fillR svg{position:absolute;right:0;top:0;width:26px;height:26px}
.star .fillL path,.star .fillR path{fill:var(--pink)}
.star .fillL.on,.star .fillR.on{opacity:1}
.stars-readout{display:flex;align-items:center;gap:10px;font-weight:700;font-size:13px;color:var(--ink)}
.link-btn{background:none;border:none;color:var(--purple);font-weight:700;cursor:pointer;font-size:12px;padding:0;text-decoration:underline}

/* ---------- switch ---------- */
.switch{
  width:50px;height:28px;border-radius:999px;border:none;cursor:pointer;
  background:#ded9ec;position:relative;transition:background .18s;padding:0;
}
.switch .knob{
  position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:50%;
  background:#fff;box-shadow:0 2px 5px rgba(0,0,0,.2);transition:left .18s;
}
.switch[aria-checked="true"]{background:var(--grad-soft)}
.switch[aria-checked="true"] .knob{left:25px}

/* ---------- chips ---------- */
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{
  border:1.5px solid var(--line);background:#fff;color:var(--ink);
  padding:8px 14px;border-radius:999px;font-weight:700;font-size:13px;cursor:pointer;
  transition:all .15s;
}
.chip:hover{border-color:#d7b9ee}
.chip.active{
  border-color:transparent;color:#fff;background:var(--grad-soft);
  box-shadow:0 6px 16px -6px rgba(180,76,224,.6);
}

/* ---------- slider ---------- */
.count-badge{
  margin-left:auto;background:var(--grad-soft);color:#fff;font-weight:800;
  padding:2px 11px;border-radius:999px;font-size:13px;min-width:34px;text-align:center;
}
.slider{
  -webkit-appearance:none;appearance:none;width:100%;height:8px;border-radius:999px;
  background:linear-gradient(90deg,var(--pink),var(--purple));outline:none;
}
.slider::-webkit-slider-thumb{
  -webkit-appearance:none;width:22px;height:22px;border-radius:50%;background:#fff;
  border:3px solid var(--pink);cursor:pointer;box-shadow:0 2px 6px rgba(0,0,0,.25);
}
.slider::-moz-range-thumb{
  width:22px;height:22px;border-radius:50%;background:#fff;
  border:3px solid var(--pink);cursor:pointer;box-shadow:0 2px 6px rgba(0,0,0,.25);
}
.slider-scale{display:flex;justify-content:space-between;color:var(--muted);font-size:12px;font-weight:700}

/* ---------- buttons ---------- */
.btn-primary{
  margin-top:4px;border:none;cursor:pointer;color:#fff;font-weight:800;font-size:15px;
  padding:14px;border-radius:14px;background:var(--grad);
  box-shadow:0 12px 26px -10px rgba(180,76,224,.7);transition:transform .12s,filter .12s;
}
.btn-primary:hover{filter:brightness(1.05)}
.btn-primary:active{transform:translateY(1px)}
.btn-primary:disabled{opacity:.55;cursor:default;filter:grayscale(.3)}

/* ---------- status panel ---------- */
.status{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:22px;min-height:200px;
}
.status-head{display:flex;align-items:center;gap:10px}
.status-head h2{margin:0;font-size:18px;font-weight:800}
.dot{width:12px;height:12px;border-radius:50%;background:#cfc9e0;flex:0 0 auto}
.dot.busy{background:var(--pink);box-shadow:0 0 0 0 rgba(255,95,162,.6);animation:pulse 1.2s infinite}
.dot.done{background:#34c77b}
.dot.error{background:#ec4d5b}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(255,95,162,.55)}70%{box-shadow:0 0 0 10px rgba(255,95,162,0)}100%{box-shadow:0 0 0 0 rgba(255,95,162,0)}}
.status-msg{color:var(--muted);font-weight:600;margin:12px 0 0;line-height:1.5}
.progress{margin-top:16px;height:10px;border-radius:999px;background:var(--bg2);overflow:hidden}
.progress-bar{height:100%;width:0%;background:var(--grad);transition:width .35s}
.status-log{list-style:none;margin:16px 0 0;padding:0;display:flex;flex-direction:column;gap:6px;max-height:220px;overflow:auto}
.status-log li{font-size:13px;color:var(--muted);font-weight:600;padding-left:16px;position:relative}
.status-log li::before{content:"›";position:absolute;left:2px;color:var(--purple);font-weight:800}

/* ---------- download footer ---------- */
.dl{max-width:640px;margin:28px auto 0;text-align:center}
.info{color:var(--muted);font-size:13.5px;font-weight:600;line-height:1.6;margin:0 0 16px}
.btn-download{
  display:inline-block;text-decoration:none;color:#fff;font-weight:800;font-size:16px;
  padding:15px 42px;border-radius:14px;background:var(--grad);cursor:pointer;
  box-shadow:0 14px 30px -10px rgba(180,76,224,.7);transition:transform .12s,filter .12s;
}
.btn-download:hover{filter:brightness(1.05)}
.btn-download:active{transform:translateY(1px)}
.btn-download.is-disabled{opacity:.45;pointer-events:none;filter:grayscale(.4);box-shadow:none}

/* ---------- topbar / auth ---------- */
.topbar{position:fixed;top:16px;right:18px;z-index:30}
.topbar-btn{
  border:1px solid var(--line);background:#fff;color:var(--ink);font-weight:800;font-size:14px;
  padding:9px 16px;border-radius:12px;cursor:pointer;box-shadow:0 6px 18px -10px rgba(80,40,120,.4);
  transition:all .15s;
}
.topbar-btn:hover{border-color:#d7b9ee}
#welcomeBtn{background:var(--grad-soft);color:#fff;border-color:transparent}

/* ---------- modal ---------- */
.overlay{
  position:fixed;inset:0;z-index:40;background:rgba(40,25,60,.45);
  display:flex;align-items:center;justify-content:center;padding:20px;
}
.modal{
  position:relative;background:#fff;border-radius:20px;box-shadow:0 30px 80px -30px rgba(60,20,80,.6);
  width:100%;max-width:420px;padding:30px 26px 26px;
}
.modal-close{
  position:absolute;top:12px;right:14px;border:none;background:none;font-size:26px;line-height:1;
  color:var(--muted);cursor:pointer;
}
.modal-text{color:var(--ink);font-weight:600;line-height:1.6;margin:0 0 18px;font-size:15px}
.modal-actions{display:flex;gap:10px;flex-wrap:wrap}
.modal-actions .btn-primary{flex:1;margin:0}
.btn-ghost{
  flex:1;border:1.5px solid var(--line);background:#fff;color:var(--ink);font-weight:800;font-size:15px;
  padding:13px;border-radius:14px;cursor:pointer;transition:all .15s;
}
.btn-ghost:hover{border-color:#d7b9ee}
.text-input{
  width:100%;border:1.5px solid var(--line);border-radius:12px;padding:12px 14px;font-size:15px;
  font-weight:600;margin:0 0 14px;outline:none;font-family:inherit;
}
.text-input:focus{border-color:var(--purple)}
.modal-error{color:#ec4d5b;font-weight:700;font-size:13px;margin:12px 0 0}
.key-box{
  display:flex;align-items:center;gap:10px;background:var(--bg2);border:1.5px dashed #c9c2de;
  border-radius:12px;padding:12px 14px;margin:0 0 16px;word-break:break-all;
}
.key-box code{font-family:var(--font-mono,monospace);font-size:15px;font-weight:700;color:var(--purple);flex:1}

/* ---------- dedup checkbox ---------- */
.dedup{display:flex;align-items:flex-start;gap:9px;cursor:pointer;font-weight:700;font-size:13.5px}
.dedup input{width:18px;height:18px;accent-color:#d4537e;margin-top:1px;flex:0 0 auto}

/* ---------- stuck note ---------- */
.status-note{
  margin-top:12px;padding:10px 12px;border-radius:10px;background:#fff5e6;border:1px solid #ffd99a;
  color:#9a6a12;font-weight:700;font-size:13px;line-height:1.5;
}

/* ---------- stats box ---------- */
.stats-box{
  position:fixed;bottom:16px;right:18px;z-index:25;display:flex;align-items:center;gap:14px;
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px 16px;
  box-shadow:0 10px 26px -12px rgba(80,40,120,.4);
}
.stats-box .stat{display:flex;flex-direction:column;align-items:center;line-height:1.1}
.stat-num{font-weight:800;font-size:17px;
  background:var(--grad-soft);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-lbl{font-weight:700;font-size:11px;color:var(--muted);margin-top:2px}
.stat-div{width:1px;height:26px;background:var(--line)}
@media(max-width:520px){.stats-box{bottom:10px;right:10px;padding:8px 12px;gap:10px}}