:root{
  --bg:#0a0a0a; --bg2:#111; --panel:#121212; --panel2:#0f0f0f;
  --text:#eee; --muted:#aaa; --border:#262626;
  --coin:#60a5fa;   /* blue */
  --hilo:#a78bfa;   /* purple */
  --bj:#34d399;     /* green */
  --accent:#3b82f6; --accent2:#22c55e; --danger:#ef4444;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;background:
    radial-gradient(900px 360px at 70% -10%, rgba(59,130,246,.12), transparent 60%),
    radial-gradient(800px 320px at 0% 0%, rgba(34,197,94,.10), transparent 60%),
    var(--bg);
  color:var(--text);
  font:14px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Arial,sans-serif;
}

/* Header */
header{position:sticky;top:0;z-index:20;border-bottom:1px solid var(--border);backdrop-filter:saturate(1.1) blur(6px);background:rgba(10,10,10,.8)}
.container{max-width:1100px;margin:0 auto;padding:16px}
.brand-sm{font-size:18px;margin:0}
.tag{background:#1a1a1a;border:1px solid var(--border);padding:.3rem .7rem;border-radius:999px}
.row{display:flex;gap:12px;align-items:center}
.wrap{flex-wrap:wrap}
.grow{flex:1}
.mini{border:1px solid var(--border);background:#161616;color:#fff;padding:8px 10px;border-radius:999px;font-weight:600;cursor:pointer}
.mini.ghost{background:#111}
.mini.linkish{background:none;border:none;color:#9ec1ff;text-decoration:underline;padding:0}

/* Landing */
.landing{padding:24px 0}
.brand{font-size:40px;margin:6px 0 0 0}
.sub{max-width:680px;color:#cfcfcf}
.cat-grid{
  display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:16px; padding:0 16px 16px 16px; max-width:1100px; margin:0 auto;
}
.cat-card{
  border:1px solid var(--border);background:rgba(20,20,20,.6);
  border-radius:16px; overflow:hidden; display:grid; grid-template-rows:140px auto;
  transition:.2s transform,.2s box-shadow; cursor:pointer;
}
.cat-card:hover{transform:translateY(-2px); box-shadow:0 10px 24px rgba(0,0,0,.25)}
.cat-art{position:relative;height:100%;background:#0e0e0e}
.cat-art .dots{position:absolute;inset:0;background-image:radial-gradient(circle at 1px 1px, rgba(255,255,255,.06) 1px, transparent 1px);background-size:16px 16px;opacity:.7}
.cat-art.casino{background:radial-gradient(900px 260px at 70% -10%, rgba(59,130,246,.18), transparent 60%), radial-gradient(800px 200px at 0% 0%, rgba(34,197,94,.16), transparent 60%), #0e0e0e}
.chip-illus{position:absolute;bottom:16px;right:16px;border-radius:999px;border:6px solid #fff;background:#0b0b0b;color:#fff;width:72px;height:72px;display:flex;align-items:center;justify-content:center;font-weight:800;letter-spacing:.06em;box-shadow:0 12px 22px rgba(0,0,0,.45)}
.cat-body{padding:14px}
.cat-body h3{margin:0 0 6px 0}
.cta{background:linear-gradient(180deg, #1b4ddf, #143eb0);border:0;box-shadow:0 10px 24px rgba(59,130,246,.22);color:#fff;padding:10px 12px;border-radius:10px;font-weight:700}

/* Accents on cards */
.accent-coin .cat-art{background:
  radial-gradient(600px 220px at 70% -10%, rgba(96,165,250,.22), transparent 60%), #0e0e0e}
.accent-hilo .cat-art{background:
  radial-gradient(600px 220px at 70% -10%, rgba(167,139,250,.22), transparent 60%), #0e0e0e}
.accent-bj .cat-art{background:
  radial-gradient(600px 220px at 70% -10%, rgba(52,211,153,.22), transparent 60%), #0e0e0e}
.accent-coming .cat-art{background:
  radial-gradient(600px 220px at 70% -10%, rgba(255,255,255,.10), transparent 60%), #0e0e0e}

/* Inputs / chips */
label span{display:block;margin-bottom:4px;color:#cfcfcf}
input[type=number], input[type=text]{width:180px;padding:10px 12px;border-radius:10px;border:1px solid var(--border);outline:none;background:#0b0b0b;color:#fff}
input[type=number]:focus, input[type=text]:focus{box-shadow:0 0 0 2px #2a2a2a}
button{border:1px solid var(--border);background:#161616;color:#fff;padding:10px 12px;border-radius:10px;font-weight:600;cursor:pointer;transition:.15s transform,.15s background,.2s box-shadow}
button:hover{background:#1d1d1d;box-shadow:0 0 0 3px rgba(255,255,255,.04) inset}
button:active{transform:translateY(1px)}
button[disabled]{opacity:.5;cursor:not-allowed}
.chips{display:flex;gap:6px;align-items:center}
.chip{padding:8px 10px;border-radius:999px;border:1px solid #2a2a2a;background:#101010;font-size:12px}
.chip:hover{background:#151515}
.ghost{background:linear-gradient(180deg,#1a1a1a,#161616);border:1px solid #2a2a2a}

/* Cards UI */
.cards{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.card-ui{position:relative;width:80px;height:112px;border-radius:12px;border:1px solid #e5e5e5;background:#fff;box-shadow:0 8px 18px rgba(0,0,0,.35);overflow:hidden}
.card-ui.small{width:56px;height:80px}
.card-face{position:absolute;inset:0;padding:6px;color:#111}
.card-rank{font-weight:800;font-size:12px}
.card-suit-big{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:40px}
.card-rank.bottom{position:absolute;right:6px;bottom:6px;transform:rotate(180deg)}
.red{color:#c02}
.back{background:radial-gradient(circle at 30% 30%,#334,#112 70%);border:1px solid rgba(0,0,0,.4)}

/* Toasts */
#toasts{position:fixed;right:16px;bottom:16px;display:grid;gap:8px;z-index:60}
.toast{background:#141414;border:1px solid #2a2a2a;padding:10px 12px;border-radius:10px;box-shadow:0 12px 24px rgba(0,0,0,.3);animation:pop .2s ease-out}
.toast.good{border-color:#1f6c3a}
.toast.bad{border-color:#6c1f1f}
@keyframes pop{from{transform:scale(.96);opacity:0}to{transform:scale(1);opacity:1}}
.pulse{animation:pulse 0.6s ease-out}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(34,197,94,.45)}100%{box-shadow:0 0 0 12px rgba(34,197,94,0)}}

/* Modal (popup) */
.modal{position:fixed;inset:0;display:none}
.modal.open{display:block;z-index:40}
.overlay{position:absolute;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(2px)}
.sheet{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:min(760px,92vw);max-height:86vh;overflow:auto;
  border:1px solid var(--border);background:#151515;border-radius:16px;box-shadow:0 30px 80px rgba(0,0,0,.5);
  display:grid;grid-template-rows:auto 1fr
}
.sheet-head{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-bottom:1px solid var(--border)}
.sheet-body{padding:14px}

/* Colored sheet headers */
.sheet-coin .sheet-head{background:linear-gradient(90deg, rgba(96,165,250,.15), transparent);border-bottom-color:#1f334a}
.sheet-hilo .sheet-head{background:linear-gradient(90deg, rgba(167,139,250,.15), transparent);border-bottom-color:#2c2244}
.sheet-bj .sheet-head{background:linear-gradient(90deg, rgba(52,211,153,.15), transparent);border-bottom-color:#1a332a}

.iconbtn{background:#191919;border:1px solid var(--border);border-radius:8px;padding:6px 10px;color:#fff}
.iconbtn:hover{background:#1f1f1f}

/* Accent buttons */
button.accent-coin{background:linear-gradient(180deg,#2563eb,#1d4ed8);border-color:#1e40af}
button.accent-hilo{background:linear-gradient(180deg,#7c3aed,#6d28d9);border-color:#4c1d95}
button.accent-bj{background:linear-gradient(180deg,#059669,#047857);border-color:#065f46}

/* Utility */
.muted{color:var(--muted)}
.small{font-size:12px}

/* ======= Centered banners for win/lose ======= */
.banner{
  display:none; text-align:center; padding:10px 12px; border-radius:12px; margin:6px 0 10px;
  font-weight:800; letter-spacing:.02em;
}
.banner.show{display:block}
.banner.ok{background:rgba(16,185,129,.18); border:1px solid rgba(16,185,129,.35)}
.banner.bad{background:rgba(239,68,68,.18); border:1px solid rgba(239,68,68,.35)}

/* ===================== */
/* 3D Coin flip styles   */
/* ===================== */
.coin-wrap{display:flex;justify-content:center;align-items:center;margin:10px 0 2px}
.coin{
  width:120px;height:120px;position:relative;transform-style:preserve-3d;
  transition:transform .9s cubic-bezier(.2,.6,.2,1);
}
.coin .face{
  position:absolute;inset:0;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-weight:900;letter-spacing:.08em;
  backface-visibility:hidden;
  color:#fff; text-shadow:0 2px 10px rgba(0,0,0,.35);
  border:6px solid rgba(255,255,255,.85);
  box-shadow:0 18px 40px rgba(0,0,0,.35);
}
.coin .front{background:radial-gradient(circle at 30% 30%, rgba(96,165,250,.9), rgba(37,99,235,.9));}
.coin .back{background:radial-gradient(circle at 30% 30%, rgba(55,65,81,.95), rgba(31,41,55,.95));transform:rotateY(180deg)}
@keyframes spinY { from{ transform:rotateY(0); } to{ transform:rotateY(720deg); } }
.coin.spinning{ animation:spinY .9s linear; }