:root{
  --bg:#050b1a; --panel:#0d1730; --panel2:#132247; --line:#22345f;
  --text:#eaf1ff; --muted:#8ea3c8; --accent:#ff5a2c; --accent2:#3aa0ff;
  --ok:#22c55e; --bad:#ef4444; --card:#f4f7ff;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{
  font-family:"Segoe UI",system-ui,-apple-system,"Sarabun",sans-serif;
  color:var(--text); background:var(--bg);
}
button{font-family:inherit;cursor:pointer}
a{color:var(--accent2)}

/* ---------- animated space background ---------- */
.stage{position:fixed;inset:0;overflow:hidden;background:#03060f}
/* static banner bg, sharp */
.bgvid{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  filter:brightness(.86) saturate(1.03)}
/* light veil — just enough contrast for the card + brand, banner still reads */
.bgveil{position:absolute;inset:0;background:
  linear-gradient(90deg,rgba(4,8,20,.30) 0%,rgba(4,8,20,.12) 45%,rgba(4,8,20,.32) 100%)}
.rays{position:absolute;inset:0;opacity:0;transition:opacity .4s;
  background:repeating-conic-gradient(from 0deg at 50% 45%,rgba(255,90,44,.0) 0deg,rgba(255,120,40,.35) 2deg,rgba(255,90,44,0) 6deg)}
.stage.win .rays{opacity:.6;animation:spinrays 8s linear infinite}
.stage.win .bgveil{background:linear-gradient(90deg,rgba(26,6,0,.55),rgba(26,6,0,.35),rgba(26,6,0,.6))}
@keyframes spinrays{to{transform:rotate(360deg)}}

/* ---------- spin page ---------- */
.brand{position:absolute;top:26px;left:34px;display:flex;align-items:center;gap:14px;z-index:3}
.brand img{height:52px;filter:drop-shadow(0 2px 10px rgba(0,0,0,.5))}
.brand .sub{font-weight:800;letter-spacing:2px;font-size:14px;color:#cdd9f5;opacity:.9}

.spin-wrap{position:relative;z-index:2;height:100%;display:grid;
  grid-template-columns:1fr 46vh;align-items:center;gap:3vw;padding:0 4vw}
.result-card{background:var(--card);color:#0b1020;border-radius:28px;
  min-height:34vh;display:flex;flex-direction:column;justify-content:center;
  padding:6vh 4vw;box-shadow:0 20px 80px rgba(0,0,0,.55);position:relative}
.result-card .prize-tag{font-size:2.2vh;font-weight:800;color:var(--accent);
  letter-spacing:1px;margin-bottom:1.5vh;text-transform:uppercase}
.result-card .name{font-size:7vh;font-weight:900;line-height:1.05;word-break:break-word}
.result-card .name.placeholder{color:#0b1020;opacity:.85}

.wheel-box{position:relative;width:46vh;height:46vh;justify-self:center}
.wheel-box canvas{width:100%;height:100%;border-radius:50%;
  box-shadow:0 0 0 8px #0b1428,0 0 40px rgba(58,160,255,.4),0 20px 60px rgba(0,0,0,.6)}
.pointer{position:absolute;top:50%;left:-4px;transform:translateY(-50%);
  width:0;height:0;border-top:2.2vh solid transparent;border-bottom:2.2vh solid transparent;
  border-left:3.4vh solid var(--accent);filter:drop-shadow(0 3px 6px rgba(0,0,0,.5));z-index:4}
.hub{position:absolute;top:50%;left:50%;width:9vh;height:9vh;transform:translate(-50%,-50%);
  background:radial-gradient(circle at 40% 35%,#fff,#dfe8fb);border-radius:50%;
  box-shadow:inset 0 0 0 3px #c3d2f0,0 6px 18px rgba(0,0,0,.4);z-index:3}

.controls{position:absolute;bottom:4vh;left:0;right:0;display:flex;gap:16px;
  justify-content:center;z-index:5}
.btn{border:0;border-radius:16px;padding:14px 26px;font-size:18px;font-weight:800;
  display:inline-flex;align-items:center;gap:10px;box-shadow:0 8px 24px rgba(0,0,0,.35)}
.btn-primary{background:#151d33;color:#fff}
.btn-light{background:#eef2fb;color:#0b1020}
.btn:disabled{opacity:.45;cursor:not-allowed}

/* confetti canvas */
#confetti{position:fixed;inset:0;pointer-events:none;z-index:6}

/* ---------- admin page ---------- */
.admin{max-width:1080px;margin:0 auto;padding:28px 22px 80px}
.admin h1{font-size:22px;margin:0 0 4px}
.admin .lead{color:var(--muted);margin:0 0 22px;font-size:14px}
.grid{display:flex;flex-direction:column;gap:22px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:18px}
.panel h2{font-size:15px;margin:0 0 12px;letter-spacing:.5px}
.dropzone{border:2px dashed var(--line);border-radius:14px;padding:26px;text-align:center;
  color:var(--muted);cursor:pointer;transition:.15s}
.dropzone:hover,.dropzone.drag{border-color:var(--accent2);color:var(--text);background:var(--panel2)}
.field{display:block;margin:12px 0 4px;font-size:13px;color:var(--muted)}
select,input[type=text]{width:100%;padding:10px 12px;border-radius:10px;border:1px solid var(--line);
  background:var(--panel2);color:var(--text);font-size:14px}
.count{font-size:13px;color:var(--ok);margin-top:10px}
.mini{font-size:12px;color:var(--muted)}

.prize{display:grid;grid-template-columns:26px 1fr 1.2fr 34px;gap:10px;align-items:center;
  padding:10px;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;background:var(--panel2)}
.prize.warn{border-color:var(--bad);box-shadow:0 0 0 2px rgba(239,68,68,.25)}
.prize .ord{cursor:grab;color:var(--muted);text-align:center;font-weight:800}
.prize .warnmsg{grid-column:1/-1;color:#ffb4b4;font-size:12px;margin-top:2px}
.iconbtn{border:1px solid var(--line);background:transparent;color:var(--muted);
  border-radius:8px;width:34px;height:34px;font-size:16px}
.iconbtn:hover{color:#fff;border-color:var(--bad)}
.row{display:flex;gap:10px;align-items:center}
.addbar{display:flex;gap:10px;margin-top:6px}
.addbar input{flex:1}
.btn-sm{border:0;border-radius:10px;padding:10px 16px;font-weight:700;background:var(--accent);color:#fff}
.btn-ghost{background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:10px;padding:10px 16px}
.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
.topbar a.play{background:var(--accent);color:#fff;padding:10px 18px;border-radius:12px;text-decoration:none;font-weight:800}
.empty{color:var(--muted);font-size:14px;padding:14px;text-align:center}
.badge{font-size:11px;padding:2px 8px;border-radius:999px;background:var(--line);color:#cdd9f5}
.badge.done{background:rgba(34,197,94,.2);color:#7ff0a8}
select.winner.miss{border-color:var(--bad)}