:root{
  --bg:#0b1120; --surface:#0f172a; --surface2:#111a2e; --border:#1e293b;
  --text:#e2e8f0; --muted:#94a3b8; --green:#4ade80; --green-d:#22c55e;
  --cyan:#38bdf8; --danger:#f87171; --warn:#fbbf24;
  --mono:ui-monospace,"Cascadia Code","Fira Code",Consolas,monospace;
  --sans:"Poppins",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:radial-gradient(1200px 600px at 80% -10%,#13203a 0,transparent 60%),var(--bg);
  color:var(--text);font-family:var(--sans);line-height:1.6;-webkit-font-smoothing:antialiased;padding:0 16px 80px}
a{color:var(--cyan)}
.wrap{max-width:860px;margin:0 auto}
.topbar{position:sticky;top:0;z-index:20;margin:0 -16px 0;background:rgba(11,17,32,.85);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}
.topbar .inner{max-width:1100px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.3px}
.dot{width:10px;height:10px;border-radius:50%;background:var(--green);box-shadow:0 0 12px var(--green)}
.countdown{font-family:var(--mono);font-size:13px;color:var(--muted);border:1px solid var(--border);padding:5px 10px;border-radius:999px;white-space:nowrap}
.countdown b{color:var(--green)} .countdown.over b{color:var(--danger)}
header.hero{padding:34px 0 10px}
.kicker{font-family:var(--mono);color:var(--green);font-size:13px;letter-spacing:2px;text-transform:uppercase}
h1{font-size:clamp(26px,5vw,40px);line-height:1.15;margin:8px 0 6px}
.sub{color:var(--muted);font-size:16px}
.meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.chip{font-size:13px;background:var(--surface);border:1px solid var(--border);padding:7px 12px;border-radius:10px;display:flex;gap:7px;align-items:center}
.chip .l{color:var(--muted)} .chip .v{color:var(--text);font-weight:600} .chip.due .v{color:var(--warn)}
.progwrap{margin:22px 0 6px}
.progbar{height:8px;background:var(--surface);border:1px solid var(--border);border-radius:999px;overflow:hidden}
.progfill{height:100%;width:0;background:linear-gradient(90deg,var(--green-d),var(--cyan));transition:width .3s ease}
.progtxt{font-family:var(--mono);font-size:12px;color:var(--muted);margin-top:6px}
.card{background:linear-gradient(180deg,var(--surface2),var(--surface));border:1px solid var(--border);border-radius:16px;padding:22px;margin:18px 0}
.card h2{margin:0 0 4px;font-size:20px;display:flex;align-items:center;gap:10px}
.num{font-family:var(--mono);color:var(--bg);background:var(--green);width:30px;height:30px;border-radius:9px;display:inline-grid;place-items:center;font-size:14px;font-weight:700;flex:0 0 auto}
.mk{font-size:13px;color:var(--muted);font-weight:400}
.card .lead{color:var(--muted);margin:2px 0 16px}
.scenario{border-left:3px solid var(--cyan);background:rgba(56,189,248,.06);padding:14px 16px;border-radius:0 12px 12px 0;margin:4px 0 2px}
.scenario b{color:var(--cyan)}
.task{margin:16px 0;padding:14px;border:1px dashed var(--border);border-radius:12px;background:rgba(255,255,255,.015)}
.task .q{font-weight:600;margin-bottom:8px}
.task .q .tag{font-family:var(--mono);font-size:11px;color:var(--bg);background:var(--muted);padding:2px 7px;border-radius:6px;margin-right:8px;vertical-align:1px}
.hint{font-size:13px;color:var(--muted);margin-top:8px}
code.cmd{font-family:var(--mono);background:#05080f;border:1px solid var(--border);color:var(--green);padding:2px 7px;border-radius:6px;font-size:13px}
pre.term{font-family:var(--mono);background:#05080f;border:1px solid var(--border);border-radius:10px;padding:12px 14px;overflow:auto;font-size:13px;color:#cbd5e1;margin:10px 0}
pre.term .p{color:var(--green)}
label.fl{display:block;font-size:13px;color:var(--muted);margin:10px 0 5px}
input[type=text],input[type=email],input[type=password],textarea,select{width:100%;background:#05080f;border:1px solid var(--border);color:var(--text);border-radius:10px;padding:11px 12px;font-family:var(--sans);font-size:15px;outline:none}
input:focus,textarea:focus,select:focus{border-color:var(--green-d);box-shadow:0 0 0 3px rgba(34,197,94,.15)}
textarea{min-height:84px;resize:vertical;font-family:var(--mono);font-size:14px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:560px){.grid2{grid-template-columns:1fr}}
input[type=file]{width:100%;background:#05080f;border:1px dashed var(--border);color:var(--muted);border-radius:10px;padding:14px;font-size:14px}
.ethics{display:flex;gap:10px;align-items:flex-start;background:rgba(251,191,36,.07);border:1px solid rgba(251,191,36,.25);border-radius:12px;padding:14px;margin-top:16px}
.ethics input{margin-top:4px;width:18px;height:18px;flex:0 0 auto}
.ethics label{font-size:14px;color:#fde68a}
.submitbox{text-align:center;padding:26px 22px}
.whatsapp{background:rgba(74,222,128,.08);border:1px solid rgba(74,222,128,.25);border-radius:12px;padding:14px 16px;margin:0 0 18px;font-size:14px;color:#bbf7d0;text-align:left}
.whatsapp b{color:var(--green)}
button.submit,.btn{background:linear-gradient(90deg,var(--green-d),#16a34a);color:#04120a;border:none;font-weight:800;font-size:16px;padding:14px 34px;border-radius:12px;cursor:pointer;letter-spacing:.3px;box-shadow:0 8px 24px rgba(34,197,94,.25);text-decoration:none;display:inline-block}
button.submit:disabled{opacity:.5;cursor:not-allowed;box-shadow:none}
button.ghost,.ghost{background:transparent;border:1px solid var(--border);color:var(--muted);padding:11px 18px;border-radius:10px;cursor:pointer;font-size:14px;text-decoration:none;display:inline-block}
.status{margin-top:14px;font-size:14px;min-height:20px}
.status.ok{color:var(--green)} .status.err{color:var(--danger)}
.banner{border-radius:12px;padding:16px 18px;margin:18px 0;font-size:15px}
.banner.ok{background:rgba(74,222,128,.1);border:1px solid rgba(74,222,128,.3);color:#bbf7d0}
.banner.err{background:rgba(248,113,113,.1);border:1px solid rgba(248,113,113,.3);color:#fecaca}
.banner.warn{background:rgba(251,191,36,.1);border:1px solid rgba(251,191,36,.3);color:#fde68a}
footer{color:var(--muted);font-size:12px;text-align:center;margin-top:30px;font-family:var(--mono)}
.saved{position:fixed;bottom:16px;right:16px;background:var(--surface);border:1px solid var(--border);color:var(--green);font-family:var(--mono);font-size:12px;padding:8px 12px;border-radius:10px;opacity:0;transition:opacity .4s;pointer-events:none}
.saved.show{opacity:1}
/* ---- admin ---- */
.admin-wrap{max-width:1100px;margin:0 auto}
table.subs{width:100%;border-collapse:collapse;margin-top:16px;font-size:14px}
table.subs th,table.subs td{text-align:left;padding:11px 12px;border-bottom:1px solid var(--border)}
table.subs th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.5px}
table.subs tr:hover td{background:rgba(255,255,255,.02)}
.pill{font-size:11px;padding:2px 9px;border-radius:999px;font-weight:700}
.pill.late{background:rgba(248,113,113,.15);color:#fca5a5}
.pill.ontime{background:rgba(74,222,128,.15);color:#86efac}
.pill.file{background:rgba(56,189,248,.15);color:#7dd3fc}
.toolbar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:18px 0}
.toolbar input,.toolbar select{width:auto;flex:0 0 auto}
.stat{display:flex;gap:14px;flex-wrap:wrap;margin-top:8px}
.stat .box{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:14px 18px;min-width:120px}
.stat .box .n{font-size:26px;font-weight:800} .stat .box .t{font-size:12px;color:var(--muted)}
.ans{background:#05080f;border:1px solid var(--border);border-radius:10px;padding:12px 14px;margin:10px 0}
.ans .lbl{font-size:12px;color:var(--muted);font-family:var(--mono);margin-bottom:4px}
.ans .val{white-space:pre-wrap;font-family:var(--mono);font-size:14px}
@media print{.topbar,.toolbar,button,.ghost,.saved{display:none!important}body{background:#fff;color:#000}}

/* ===== matrix background ===== */
#matrix{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;opacity:.35}
.topbar,.wrap,.admin-wrap{position:relative;z-index:1}
body::before{content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(900px 500px at 80% -10%,rgba(19,32,58,.6) 0,transparent 60%)}

/* ===== branded header / footer ===== */
.sitehead{position:relative;z-index:1;margin:0 -16px 0;border-bottom:1px solid var(--border);
  background:linear-gradient(180deg,rgba(17,26,46,.92),rgba(11,17,32,.92));backdrop-filter:blur(10px)}
.sitehead .row{max-width:1100px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 16px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:12px}
.logo .mark{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;font-weight:800;
  background:linear-gradient(135deg,var(--green-d),var(--cyan));color:#04120a;font-size:15px;
  box-shadow:0 6px 20px rgba(34,197,94,.35);letter-spacing:.5px}
.logo .txt b{display:block;font-size:17px;letter-spacing:.3px}
.logo .txt span{font-size:12px;color:var(--muted);letter-spacing:2px;text-transform:uppercase}
.headmeta{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.headmeta .who{font-size:13px;color:var(--muted)}
.headmeta .who b{color:var(--text)}
.sitefoot{position:relative;z-index:1;text-align:center;margin-top:40px;padding:26px 16px;
  border-top:1px solid var(--border);color:var(--muted);font-size:13px}
.sitefoot .fname{color:var(--green);font-weight:700}
.sitefoot .brandline{font-family:var(--mono);font-size:12px;margin-top:6px;opacity:.8}

/* ===== per-command screenshot field ===== */
.shotwrap{margin-top:12px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.shotwrap .sl{font-size:12px;color:var(--cyan);font-weight:600}
input[type=file].shot{flex:1 1 220px;padding:9px 11px;font-size:13px;border-style:dashed;cursor:pointer}

/* ===== thank-you / lock screens ===== */
.screen{position:relative;z-index:1;max-width:620px;margin:0 auto;min-height:72vh;
  display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:40px 20px}
.screen .big{font-size:clamp(40px,9vw,76px);font-weight:800;line-height:1.05;margin:0 0 14px}
.screen .emoji{font-size:56px;margin-bottom:10px;animation:pop .6s ease}
.screen p{color:var(--muted);font-size:17px;max-width:460px;margin:0 auto}
.ty{background:linear-gradient(90deg,#4ade80,#38bdf8,#4ade80);background-size:200% auto;
  -webkit-background-clip:text;background-clip:text;color:transparent;animation:shine 3s linear infinite}
.lockbig{color:var(--danger)}
.animname{margin-top:28px;font-size:clamp(22px,5vw,30px);font-weight:700;
  background:linear-gradient(90deg,#4ade80,#38bdf8,#a78bfa,#4ade80);background-size:300% auto;
  -webkit-background-clip:text;background-clip:text;color:transparent;
  animation:shine 4s linear infinite, floaty 3s ease-in-out infinite}
.animname .role{display:block;font-size:13px;letter-spacing:3px;text-transform:uppercase;color:var(--muted);
  -webkit-text-fill-color:var(--muted);margin-top:6px;font-weight:500;animation:none}
@keyframes shine{to{background-position:200% center}}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
@keyframes pop{0%{transform:scale(.4);opacity:0}70%{transform:scale(1.15)}100%{transform:scale(1);opacity:1}}