:root{--bg:#0f0f10;--text:#f5f6f7;--muted:#aeb3b7;--card:#17181a;--border:#2b2d31;--accent:#EF5C28;--accent2:#ED6C30;--accent3:#DA2128;--neon-purple:#9b5cff;--neon-pink:#ff4fd8;--neon-cyan:#52e8ff}
*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font:16px/1.45 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,"Helvetica Neue",Arial}
.container{width:min(960px,92vw);margin:0 auto;padding:20px}
.site-header{border-bottom:1px solid var(--border);background:linear-gradient(90deg,#121315,transparent)}
.brand{display:flex;gap:12px;align-items:center;min-height:56px}
.logo-wrap{display:inline-flex;align-items:center;justify-content:center;max-width:40vw}
.logo-wrap img{height:clamp(28px,6vh,64px);width:auto;display:block}
.logo-circle{width:30px;height:30px;border-radius:50%;background:radial-gradient(circle at 30% 30%,var(--accent2),var(--accent))}
.has-logo .logo-circle{display:none}
.subtitle{color:var(--muted);margin:6px 0 0 42px}
.site-footer{border-top:1px solid var(--border);color:var(--muted);padding:24px 0;margin-top:32px}

.card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:18px;margin:18px 0;box-shadow:0 8px 20px rgba(0,0,0,.25)}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.span-2{grid-column:1/-1}

h1,h2,legend{margin:.2em 0 .4em}
label{display:flex;flex-direction:column;gap:6px;font-weight:500}
input,select,textarea{background:#0e0f11;color:var(--text);border:1px solid var(--border);border-radius:8px;padding:10px 12px}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in oklab,var(--accent) 35%, transparent)}

.checkbox{flex-direction:row;align-items:center;gap:10px}
.checkbox input{width:auto}
.actions{display:flex;align-items:center;gap:16px}
.btn-primary{background:linear-gradient(90deg,var(--accent3),var(--accent2) 50%,var(--accent));border:none;color:#100d0d;padding:12px 18px;border-radius:10px;font-weight:700;cursor:pointer}
.btn-primary:hover{filter:brightness(1.05)}
.help{color:var(--muted)}

.flash-wrap{margin-bottom:12px}
.flash{padding:10px 12px;border-radius:8px}
.flash.success{background:#123d26;color:#a7f3c2;border:1px solid #1a5a36}
.flash.error{background:#3d1212;color:#f3a7a7;border:1px solid #5a1a1a}

@media (max-width:720px){.grid{grid-template-columns:1fr}}

/* Popover (rules) */
.popover{position:relative;display:inline-block;margin-left:8px}
.popover > summary{display:inline;cursor:pointer;color:var(--accent);text-decoration:underline;text-underline-offset:3px;list-style:none}
.popover > summary::-webkit-details-marker{display:none}
.popover-card{position:absolute;left:0;bottom:1.8em;z-index:20;width:min(520px,92vw);background:var(--card);border:1px solid var(--border);border-radius:10px;box-shadow:0 10px 30px rgba(0,0,0,.5);padding:12px 14px}
.popover[open] > summary{color:var(--accent2)}
.popover-card strong{display:block;margin-bottom:6px}
.popover-card ul{margin:6px 0 0 18px;color:var(--text)}
.popover-card li{margin:6px 0}

/* Disco theme inspired by poster */
.theme-disco .site-header{background:linear-gradient(90deg,rgba(22,16,32,.8),rgba(16,16,20,.2));border-color:#221b33}
.theme-disco .logo-circle{background:radial-gradient(ellipse at 30% 30%,var(--neon-pink),var(--neon-purple))}
.theme-disco main.container{position:relative}
.theme-disco main.container::before,
.theme-disco main.container::after{content:"";position:absolute;inset:auto;pointer-events:none;filter:blur(0.2px)}
.theme-disco main.container::before{top:-20px;right:-30px;width:160px;height:160px;border-radius:50%;background:radial-gradient(circle at 40% 40%,rgba(155,92,255,.45),transparent 65%), repeating-linear-gradient(60deg,transparent 0 10px,rgba(155,92,255,.1) 10px 20px);box-shadow:0 0 40px 10px rgba(155,92,255,.25)}
.theme-disco main.container::after{bottom:-10px;left:-20px;width:140px;height:140px;border-radius:50%;background:radial-gradient(circle at 60% 60%,rgba(255,79,216,.35),transparent 65%), repeating-linear-gradient(-60deg,transparent 0 10px,rgba(255,79,216,.08) 10px 20px);box-shadow:0 0 40px 10px rgba(255,79,216,.2)}

.neon-title{font-size:clamp(26px,4vw,40px);letter-spacing:.06em;text-transform:uppercase;color:#fff;text-shadow:0 0 6px rgba(255,255,255,.6),0 0 14px var(--neon-purple),0 0 26px var(--neon-purple),0 0 46px var(--neon-pink)}
.theme-disco .card{background:
  radial-gradient(ellipse at 20% -10%,rgba(155,92,255,.10),transparent 60%),
  radial-gradient(ellipse at 120% 10%,rgba(255,79,216,.08),transparent 60%),
  var(--card);
  border-color:#2a2144;
  box-shadow:0 10px 30px rgba(0,0,0,.4), 0 0 0 1px rgba(155,92,255,.08) inset}

.badges{display:flex;gap:14px;flex-wrap:wrap;margin:6px 0 10px}
.badge{border:1px solid rgba(155,92,255,.45);color:#fff;background:rgba(14,10,22,.6);padding:6px 10px;border-radius:8px;font-weight:700;letter-spacing:.03em;box-shadow:0 0 10px rgba(155,92,255,.25), inset 0 0 12px rgba(155,92,255,.08)}
.badge.pink{border-color:rgba(255,79,216,.45);box-shadow:0 0 10px rgba(255,79,216,.25), inset 0 0 12px rgba(255,79,216,.08)}

/* Neon button to match accents */
.theme-disco .btn-primary{
  /* Return to warm orange gradient from earlier theme */
  background:linear-gradient(90deg,var(--accent3),var(--accent2) 50%,var(--accent));
  color:#fff;
  /* Create a readable black outline around the white text */
  text-shadow:
    -1px -1px 0 #000,
     1px -1px 0 #000,
    -1px  1px 0 #000,
     1px  1px 0 #000,
     0 0 8px rgba(0,0,0,.45);
  border:1px solid rgba(0,0,0,.5);
  box-shadow:0 10px 18px rgba(0,0,0,.35), inset 0 0 10px rgba(255,255,255,.08);
}
.theme-disco .btn-primary:hover{filter:brightness(1.05) saturate(1.05)}
.theme-disco input:focus, .theme-disco select:focus, .theme-disco textarea:focus{border-color:var(--neon-purple);box-shadow:0 0 0 3px color-mix(in oklab,var(--neon-purple) 35%, transparent)}

/* Disco framing for fieldsets */
.theme-disco fieldset{
  position:relative;
  border:1px solid transparent;
  border-radius:12px;
  padding:14px;
  background:
    linear-gradient(var(--card), var(--card)) padding-box,
    linear-gradient(135deg, rgba(155,92,255,.75), rgba(255,79,216,.6) 40%, rgba(82,232,255,.6)) border-box;
  box-shadow:0 0 0 1px rgba(155,92,255,.08) inset, 0 10px 22px rgba(0,0,0,.28);
}
.theme-disco fieldset::after{
  content:"";
  position:absolute;bottom:-1px;right:12px;height:3px;width:96px;border-radius:3px;
  background:linear-gradient(90deg,var(--neon-pink),var(--neon-purple));opacity:.7;
  filter:drop-shadow(0 0 6px rgba(155,92,255,.5));
}
.theme-disco legend{
  padding:2px 10px;margin-left:8px;
  font-weight:800;letter-spacing:.04em;color:#fff;
  background:#0e0a16;border:1px solid rgba(155,92,255,.45);border-radius:999px;
  text-shadow:-1px -1px 0 #000,1px -1px 0 #000,-1px 1px 0 #000,1px 1px 0 #000,0 0 10px rgba(155,92,255,.35);
  box-shadow:inset 0 0 12px rgba(155,92,255,.12),0 0 18px rgba(155,92,255,.18);
}