:root{
    --sea:#0b6e7a; --sea-dk:#084e57; --lagoon:#19a7a8; --sand:#f7efe1; --sand-dk:#eadcc3;
    --coral:#ef6a4c; --coral-dk:#d4512f; --sun:#f6b93b; --ink:#1d2a2e; --muted:#5c6b6f;
    --card:#fffdf8; --line:#e4d7bf; --ok:#2e9e5b; --radius:16px;
  }
  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--sand);color:var(--ink);line-height:1.5}
  a{color:var(--sea)}
  .wrap{max-width:1180px;margin:0 auto;padding:0 20px}

  /* header */
  header.top{position:sticky;top:0;z-index:20;background:rgba(247,239,225,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
  header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
  .brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.15rem;text-decoration:none;color:var(--ink)}
  .brand .logo{width:38px;height:38px;border-radius:50%;background:radial-gradient(circle at 35% 35%,#7cc96b,#2f7d3a);display:grid;place-items:center;font-size:20px}
  nav a{margin-left:18px;text-decoration:none;color:var(--ink);font-weight:600;font-size:.95rem}
  nav a:hover{color:var(--coral)}
  .btn{display:inline-flex;align-items:center;gap:8px;border:0;border-radius:999px;padding:11px 20px;font-weight:700;font-size:.95rem;cursor:pointer;text-decoration:none;transition:transform .1s,background .2s}
  .btn:active{transform:scale(.97)}
  .btn-coral{background:var(--coral);color:#fff}.btn-coral:hover{background:var(--coral-dk)}
  .btn-sea{background:var(--sea);color:#fff}.btn-sea:hover{background:var(--sea-dk)}
  .btn-ghost{background:transparent;color:var(--sea);border:2px solid var(--sea)}
  .btn[disabled]{background:#c9c2b4;cursor:not-allowed}

  /* hero */
  .hero{background:linear-gradient(160deg,var(--sea) 0%,var(--lagoon) 70%,#7fd3c8 100%);color:#fff;position:relative;overflow:hidden}
  .hero::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:60px;background:var(--sand);clip-path:path("M0 30 Q 300 0 600 30 T 1200 30 T 1800 30 T 2400 30 V60 H0Z")}
  .hero .wrap{padding:64px 20px 96px;display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:center}
  .hero h1{font-size:clamp(2rem,4.5vw,3.3rem);line-height:1.08;margin:0 0 16px}
  .hero h1 em{font-style:normal;color:var(--sun)}
  .hero p.lead{font-size:1.15rem;opacity:.95;max-width:560px;margin:0 0 26px}
  .hero .ctas{display:flex;gap:12px;flex-wrap:wrap}
  .hero .btn-ghost{color:#fff;border-color:#fff}
  .ticker{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);border-radius:var(--radius);padding:22px}
  .ticker h3{margin:0 0 12px;font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;opacity:.85}
  .ticker .row{display:flex;justify-content:space-between;align-items:center;padding:9px 0;border-top:1px dashed rgba(255,255,255,.3);font-weight:600}
  .ticker .row:first-of-type{border-top:0}
  .ticker .row span.p{font-variant-numeric:tabular-nums;background:rgba(0,0,0,.18);padding:2px 10px;border-radius:8px}
  .stats{display:flex;gap:28px;margin-top:28px;flex-wrap:wrap}
  .stats div b{display:block;font-size:1.6rem}
  .stats div{font-size:.85rem;opacity:.9}

  /* how it works */
  section{padding:56px 0}
  h2.sec{font-size:clamp(1.6rem,3vw,2.2rem);margin:0 0 8px}
  p.sub{color:var(--muted);margin:0 0 28px;max-width:680px}
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
  .step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
  .step .n{width:36px;height:36px;border-radius:50%;background:var(--coral);color:#fff;display:grid;place-items:center;font-weight:800;margin-bottom:10px}
  .step h4{margin:0 0 6px}
  .step p{margin:0;color:var(--muted);font-size:.93rem}

  /* auctions */
  .toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:22px}
  .chip{border:1.5px solid var(--line);background:var(--card);border-radius:999px;padding:7px 14px;font-weight:600;cursor:pointer;font-size:.9rem;color:var(--ink)}
  .chip.on{background:var(--ink);color:#fff;border-color:var(--ink)}
  .toolbar .spacer{flex:1}
  .toolbar select,.toolbar input{width:auto;border:1.5px solid var(--line);background:var(--card);border-radius:10px;padding:8px 12px;font-size:.9rem}
  .grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px}
  .card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .15s,box-shadow .15s;position:relative}
  .card:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(11,110,122,.14)}
  .card .pic{height:150px;display:grid;place-items:center;font-size:68px;position:relative}
  .card .badges{position:absolute;top:10px;left:10px;display:flex;gap:6px;flex-wrap:wrap}
  .badge{font-size:.72rem;font-weight:800;padding:3px 9px;border-radius:999px;background:#fff;color:var(--ink);text-transform:uppercase;letter-spacing:.04em}
  .badge.live{background:var(--coral);color:#fff}
  .badge.live::before{content:"● ";animation:blink 1.2s infinite}
  .badge.trade{background:var(--sun)}
  @keyframes blink{50%{opacity:.2}}
  .card .body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
  .card h3{margin:0;font-size:1.08rem}
  .card .meta{font-size:.82rem;color:var(--muted)}
  .price-row{display:flex;align-items:flex-end;justify-content:space-between;gap:10px;margin-top:4px}
  .price{font-size:2rem;font-weight:800;font-variant-numeric:tabular-nums;line-height:1;color:var(--sea-dk)}
  .price.drop{animation:drop .9s}
  @keyframes drop{0%{color:var(--coral);transform:translateY(-6px)}100%{color:var(--sea-dk);transform:none}}
  .was{font-size:.85rem;color:var(--muted);text-decoration:line-through}
  .save{font-size:.78rem;font-weight:800;color:var(--ok)}
  .timer{display:flex;align-items:center;justify-content:space-between;background:var(--sand);border-radius:10px;padding:8px 12px;font-size:.85rem}
  .timer b{font-variant-numeric:tabular-nums;font-size:1rem;color:var(--coral-dk)}
  .bar{height:6px;background:var(--sand-dk);border-radius:6px;overflow:hidden}
  .bar i{display:block;height:100%;background:linear-gradient(90deg,var(--coral),var(--sun));transition:width .9s linear}
  .card .actions{display:flex;gap:8px;margin-top:auto;padding-top:6px}
  .card .actions .btn{flex:1;justify-content:center;padding:10px 12px}
  .card .actions .btn-ghost{flex:0 0 52px}
  .card.gone{opacity:.62}
  .card.gone .pic{filter:grayscale(1)}
  .stamp{position:absolute;inset:0;display:grid;place-items:center;pointer-events:none}
  .stamp span{transform:rotate(-12deg);border:4px solid;padding:6px 16px;border-radius:10px;font-weight:900;font-size:1.3rem;letter-spacing:.06em;background:rgba(255,253,248,.85)}
  .stamp.sold span{color:var(--ok);border-color:var(--ok)}
  .stamp.delisted span{color:var(--muted);border-color:var(--muted)}
  .empty{grid-column:1/-1;text-align:center;padding:40px;color:var(--muted)}
  details.ended{margin-top:30px}
  details.ended summary{cursor:pointer;font-weight:700;color:var(--muted)}
  details.ended .grid{margin-top:16px}

  /* market */
  .market{background:var(--sea-dk);color:#fff}
  .market .cols{display:grid;grid-template-columns:1.2fr 1fr;gap:36px;align-items:start}
  .market p.sub{color:#cfe7ea}
  .market ul{padding-left:18px;margin:0}
  .market li{margin:6px 0}
  .infobox{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius);padding:24px}
  .infobox h4{margin:0 0 10px;color:var(--sun)}
  .infobox dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:6px 16px}
  .infobox dt{font-weight:700;opacity:.8}
  .infobox dd{margin:0}

  /* sell form */
  .form{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
  .form .full{grid-column:1/-1}
  label{font-weight:700;font-size:.88rem;display:block;margin-bottom:5px}
  label small{font-weight:500;color:var(--muted)}
  input,select,textarea{width:100%;border:1.5px solid var(--line);border-radius:10px;padding:10px 12px;font:inherit;background:#fff}
  input:focus,select:focus,textarea:focus{outline:2px solid var(--lagoon);border-color:transparent}
  .check{display:flex;align-items:center;gap:8px;font-weight:600}
  .check input{width:auto}
  .hint{font-size:.82rem;color:var(--muted);background:var(--sand);border-radius:10px;padding:10px 12px}

  /* modal */
  .modal{position:fixed;inset:0;background:rgba(15,30,33,.55);display:none;align-items:center;justify-content:center;z-index:50;padding:20px}
  .modal.open{display:flex}
  .dialog{background:var(--card);border-radius:20px;max-width:480px;width:100%;max-height:92vh;overflow:auto;padding:26px;position:relative;box-shadow:0 30px 80px rgba(0,0,0,.3)}
  .dialog.wide{max-width:760px}
  .dialog .x{position:absolute;top:12px;right:14px;border:0;background:none;font-size:1.6rem;cursor:pointer;color:var(--muted)}
  .dialog h3{margin:0 0 4px}
  .lock{display:flex;align-items:center;gap:14px;background:var(--sand);border-radius:14px;padding:14px;margin:14px 0}
  .lock .em{font-size:40px}
  .lock .price{font-size:1.7rem}
  .dialog form{display:grid;gap:12px}
  .code{font-family:ui-monospace,Menlo,monospace;font-size:2rem;font-weight:800;letter-spacing:.12em;text-align:center;background:var(--ink);color:var(--sun);border-radius:12px;padding:14px;margin:14px 0}
  table{width:100%;border-collapse:collapse;font-size:.88rem}
  th,td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--line)}
  th{font-size:.75rem;text-transform:uppercase;color:var(--muted)}

  .toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%) translateY(120px);background:var(--ink);color:#fff;padding:12px 20px;border-radius:12px;font-weight:600;z-index:60;transition:transform .3s}
  .toast.show{transform:translateX(-50%) translateY(0)}

  footer{background:var(--ink);color:#b8c4c7;padding:34px 0;font-size:.9rem}
  footer .wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
  footer a{color:#e6eef0}

  @media (max-width:900px){
    .hero .wrap,.market .cols{grid-template-columns:1fr}
    .steps{grid-template-columns:repeat(2,1fr)}
    nav a:not(.btn){display:none}
  }
  @media (max-width:560px){
    .steps,.form{grid-template-columns:1fr}
  }

  /* mode bar, errors */
  .modebar{background:var(--sun);color:var(--ink);text-align:center;font-size:.85rem;font-weight:600;padding:7px 14px}
  .modebar code{background:rgba(0,0,0,.08);padding:1px 6px;border-radius:5px}
  .modebar a{color:var(--ink);margin-left:8px}
  .err{background:#fde3dc;color:#9b2c12;border-radius:10px;padding:10px 12px;font-weight:600;font-size:.9rem}

  /* staff */
  .staff-wrap{max-width:1100px;margin:30px auto;padding:0 20px}
  .panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-bottom:22px}
  .panel h2{margin:0 0 4px;font-size:1.25rem}
  .panel .meta{color:var(--muted);font-size:.88rem;margin:0 0 14px}
  .tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
  .tabs .chip .n{background:var(--coral);color:#fff;border-radius:999px;padding:0 7px;margin-left:6px;font-size:.75rem}
  .tbl-wrap{overflow-x:auto}
  .pill{display:inline-block;font-size:.72rem;font-weight:800;text-transform:uppercase;padding:2px 8px;border-radius:999px;background:var(--sand-dk)}
  .pill.live{background:var(--coral);color:#fff}.pill.pending{background:var(--sun)}.pill.claimed{background:var(--ok);color:#fff}
  .sm{padding:5px 11px!important;font-size:.8rem!important}
  .login{max-width:380px;margin:60px auto}
  .login form{display:grid;gap:12px}