:root{--yellow:#FFD000;--black:#050505;--white:#fff;--muted:#9d9d9d;--card:#111;--line:#272727}*{box-sizing:border-box}body{margin:0;font-family:Inter,Arial,sans-serif;background:radial-gradient(circle at top,#25210a,#050505 45%);color:var(--white)}.topbar{position:sticky;top:0;z-index:10;display:flex;justify-content:space-between;align-items:center;padding:18px 6vw;background:rgba(5,5,5,.84);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.brand{font-weight:900;font-size:28px;letter-spacing:-1px}.brand span{color:var(--yellow);text-shadow:0 0 18px rgba(255,208,0,.45)}button{border:0;border-radius:14px;padding:13px 18px;font-weight:800;cursor:pointer;background:var(--yellow);color:#111;box-shadow:0 0 24px rgba(255,208,0,.22);transition:.2s}button:hover{transform:translateY(-1px);filter:brightness(1.04)}.ghost{background:#1a1a1a;color:#fff;border:1px solid #333;box-shadow:none}.adm-btn{margin-left:8px}.hero{display:grid;grid-template-columns:.9fr 1.3fr;gap:24px;padding:42px 6vw}.panel{background:linear-gradient(180deg,rgba(20,20,20,.95),rgba(10,10,10,.94));border:1px solid var(--line);border-radius:28px;padding:28px;box-shadow:0 30px 80px rgba(0,0,0,.35)}.badge{display:inline-block;background:rgba(255,208,0,.12);border:1px solid rgba(255,208,0,.38);color:var(--yellow);padding:8px 12px;border-radius:99px;font-weight:800}h1{font-size:clamp(34px,5vw,62px);line-height:1;margin:24px 0 12px}p{color:#cfcfcf;line-height:1.6}.preview-card{margin-top:32px;padding:26px;border-radius:22px;background:#070707;border:1px solid #222;text-align:center}.sign-preview{font-size:clamp(32px,6vw,72px);font-weight:900;color:var(--yellow);letter-spacing:2px;text-shadow:0 0 8px rgba(255,208,0,.45),0 0 28px rgba(255,208,0,.35),4px 8px 0 #222;word-break:break-word}label{display:block;color:#eee;font-size:13px;font-weight:800;margin-bottom:14px}input,select{width:100%;margin-top:7px;background:#080808;color:#fff;border:1px solid #303030;border-radius:14px;padding:13px;outline:none}input:focus,select:focus{border-color:var(--yellow);box-shadow:0 0 0 3px rgba(255,208,0,.12)}.grid{display:grid;gap:14px}.two{grid-template-columns:1fr 1fr}.three{grid-template-columns:repeat(3,1fr)}.result{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-top:18px;padding:20px;border-radius:22px;background:linear-gradient(90deg,rgba(255,208,0,.16),rgba(255,255,255,.04));border:1px solid rgba(255,208,0,.25)}.result small{color:#bbb}.result strong{display:block;font-size:34px;color:var(--yellow);text-shadow:0 0 18px rgba(255,208,0,.25)}.actions{display:flex;gap:10px;flex-wrap:wrap}.seller-box{margin:14px 0;padding:18px;border-radius:18px;border:1px dashed rgba(255,208,0,.45);background:rgba(255,208,0,.06)}.hidden{display:none!important}dialog{width:min(920px,94vw);background:#0b0b0b;color:#fff;border:1px solid #333;border-radius:28px;padding:26px;box-shadow:0 40px 100px #000}dialog::backdrop{background:rgba(0,0,0,.75)}.admin-panel h2,.admin-login h2{margin-top:0}.admin-group{border:1px solid #262626;border-radius:18px;padding:16px;margin:14px 0;background:#111}.admin-group h3{margin:0 0 12px;color:var(--yellow)}.admin-row{display:grid;grid-template-columns:1fr 120px 120px;gap:10px;align-items:center;margin-bottom:10px}.admin-actions{display:flex;gap:10px;justify-content:flex-end}@media(max-width:900px){.hero{grid-template-columns:1fr;padding:24px 16px}.two,.three{grid-template-columns:1fr}.topbar{padding:14px 16px}.result{align-items:flex-start;flex-direction:column}.actions button{width:100%}}