:root{
  --ink:#1D1D1F;
  --steel:#0071E3;        /* primary accent (Apple blue) */
  --steel-light:#409CFF;
  --concrete:#F5F5F7;
  --panel:#FFFFFF;
  --line:#D2D2D7;
  --amber:#FF9500;        /* live / attention accent (Apple orange) */
  --amber-dark:#C36F00;
  --red:#FF3B30;
  --green:#34C759;
  --muted:#6E6E73;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "SF Mono", "SFMono-Regular", ui-monospace, "IBM Plex Mono", monospace;
}
*{box-sizing:border-box;}
body{margin:0;background:var(--concrete);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased;}
h1,h2,h3,.display{font-family:var(--font);font-weight:700;letter-spacing:-0.015em;}
.mono{font-family:var(--mono);}
a{color:inherit;}
button{font-family:var(--font);cursor:pointer;border:none;}
input,select,textarea{font-family:var(--font);}
::selection{background:rgba(0,113,227,0.18);}

.app-nav{
  background:rgba(255,255,255,0.72);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  backdrop-filter:saturate(180%) blur(20px);
  color:var(--ink);
  border-bottom:1px solid var(--line);
  padding:0 22px;height:52px;
  display:grid;grid-template-columns:1fr auto 1fr;column-gap:12px;align-items:center;
  position:sticky;top:0;z-index:50;
}
.nav-left{display:flex;gap:20px;align-items:center;justify-self:start;}
.nav-left button{background:none;border:none;font-size:14px;font-weight:500;color:var(--muted);cursor:pointer;padding:0;}
.nav-left button.active{color:var(--ink);font-weight:600;}
.brand{display:flex;align-items:center;gap:8px;justify-self:center;}
.brand-mark{width:8px;height:8px;border-radius:50%;background:var(--steel);flex-shrink:0;}
.brand-name{font-size:16px;font-weight:600;letter-spacing:-0.01em;color:var(--ink);}
.nav-right{display:flex;align-items:center;gap:16px;justify-self:end;}
.lang-toggle{display:flex;border:1px solid var(--line);border-radius:980px;overflow:hidden;padding:2px;background:#fff;}
.lang-toggle button{background:transparent;color:var(--muted);padding:4px 11px;font-size:12px;font-weight:600;border-radius:980px;}
.lang-toggle button.active{background:var(--steel);color:#fff;}
.nav-user{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px;}
.nav-user .co{color:var(--ink);font-weight:600;}
.btn{padding:9px 20px;font-size:14px;font-weight:500;letter-spacing:0;border-radius:980px;transition:opacity .15s, transform .1s;}
.btn:hover{opacity:0.85;}
.btn:active{transform:scale(0.97);}
.btn-amber{background:var(--steel);color:#fff;}
.btn-steel{background:var(--steel);color:#fff;}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--line);}
.btn-outline{background:transparent;color:var(--steel);border:1px solid var(--line);}
.btn-danger{background:var(--red);color:#fff;}
.btn-sm{padding:6px 14px;font-size:12.5px;}
.btn:disabled{opacity:0.4;cursor:not-allowed;}

.wrap{max-width:1180px;margin:0 auto;padding:32px 28px;}
.center-wrap{max-width:430px;margin:64px auto;padding:0 20px;}

.panel{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:28px;box-shadow:0 1px 3px rgba(0,0,0,0.03);}
.eyebrow{font-family:var(--font);font-size:12px;letter-spacing:0.02em;color:var(--muted);margin-bottom:8px;font-weight:500;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink);margin-bottom:6px;}
.field input, .field select, .field textarea{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:12px;font-size:15px;background:#fbfbfc;color:var(--ink);}
.field input:focus, .field select:focus, .field textarea:focus{outline:none;border-color:var(--steel);box-shadow:0 0 0 4px rgba(0,113,227,0.12);}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.field-row3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px;}
.error-box{background:#FDEEEC;border:1px solid var(--red);color:#B0271C;padding:10px 14px;border-radius:12px;font-size:13.5px;margin-bottom:14px;}
.info-box{background:#E9F9EE;border:1px solid var(--green);color:#1E7D3C;padding:12px 15px;border-radius:12px;font-size:13.5px;margin-bottom:14px;}

.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:24px;flex-wrap:wrap;}
.tab{padding:11px 16px;font-size:14px;font-weight:500;color:var(--muted);background:transparent;border-bottom:2px solid transparent;margin-bottom:-1px;}
.tab.active{color:var(--ink);border-bottom-color:var(--steel);font-weight:600;}

.lot-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px;}
.lot-card{background:var(--panel);border:1px solid var(--line);border-radius:18px;overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .2s, transform .2s;}
.lot-card:hover{box-shadow:0 12px 28px rgba(0,0,0,0.08);transform:translateY(-1px);}
.lot-head{background:var(--steel);color:#fff;padding:10px 16px;display:flex;justify-content:space-between;align-items:center;}
.lot-num{font-size:12.5px;font-weight:600;letter-spacing:0.01em;color:#fff;opacity:0.92;}
.lot-status{font-size:11px;font-weight:600;padding:3px 10px;border-radius:980px;background:rgba(255,255,255,0.22);color:#fff;}
.lot-status.live{background:#fff;color:var(--amber-dark);}
.lot-status.ending{background:#fff;color:var(--red);}
.lot-status.ended{background:rgba(255,255,255,0.25);color:#fff;}
.lot-img{height:150px;display:flex;align-items:center;justify-content:center;font-size:52px;background:linear-gradient(135deg,#f0f0f2,#e2e2e6);overflow:hidden;position:relative;}
.lot-img img{width:100%;height:100%;object-fit:cover;}
.photo-count{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,0.55);color:#fff;font-size:11px;padding:3px 9px;border-radius:980px;}
.lot-body{padding:16px 18px;flex:1;display:flex;flex-direction:column;gap:8px;}
.lot-title{font-size:16px;font-weight:600;line-height:1.3;letter-spacing:-0.01em;}
.lot-meta{font-size:12.5px;color:var(--muted);}
.lot-price-row{display:flex;justify-content:space-between;align-items:baseline;margin-top:auto;padding-top:10px;border-top:1px solid var(--line);}
.lot-price-label{font-size:10.5px;color:var(--muted);letter-spacing:0.01em;}
.lot-price{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:-0.01em;}
.flap{font-size:13.5px;font-weight:600;background:var(--concrete);color:var(--ink);padding:4px 10px;border-radius:8px;}
.flap.urgent{color:#fff;background:var(--red);}
.lot-foot{padding:14px 18px;border-top:1px solid var(--line);}

.table{width:100%;border-collapse:collapse;font-size:13.5px;}
.table th{text-align:left;padding:10px 10px;font-size:11.5px;letter-spacing:0.01em;color:var(--muted);font-weight:600;border-bottom:1px solid var(--line);}
.table td{padding:12px 10px;border-bottom:1px solid var(--line);}
.badge{font-size:11px;font-weight:600;padding:4px 11px;border-radius:980px;}
.badge.pending{background:#FFF3E0;color:var(--amber-dark);}
.badge.approved{background:#E9F9EE;color:#1E7D3C;}
.badge.rejected{background:#FDEEEC;color:#B0271C;}

.bid-history{max-height:200px;overflow-y:auto;border:1px solid var(--line);border-radius:12px;}
.bid-row{display:flex;justify-content:space-between;padding:9px 14px;font-size:13.5px;border-bottom:1px solid var(--line);}
.bid-row:last-child{border-bottom:none;}
.bid-row.you{background:#F0F7FF;}

.empty-state{text-align:center;padding:70px 20px;color:var(--muted);}
.empty-state .display{font-size:19px;font-weight:600;color:var(--ink);margin-bottom:8px;}

footer.small-note{max-width:1180px;margin:20px auto 48px;padding:0 28px;font-size:12.5px;color:var(--muted);}
.footer-links{display:flex;gap:10px;align-items:center;flex-wrap:wrap;}
.footer-links a, .footer-links button{background:none;border:none;color:var(--steel);font-size:12.5px;font-weight:500;padding:0;text-decoration:none;cursor:pointer;}
.footer-links a:hover, .footer-links button:hover{text-decoration:underline;}
.footer-sep{color:var(--line);}

.back-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--steel);margin-bottom:18px;background:none;border:none;padding:0;text-decoration:none;}
.detail-grid{display:grid;grid-template-columns:1.15fr 0.85fr;gap:28px;align-items:start;}
.gallery-main{width:100%;aspect-ratio:4/3;border-radius:18px;overflow:hidden;background:linear-gradient(135deg,#f0f0f2,#e2e2e6);display:flex;align-items:center;justify-content:center;font-size:90px;}
.gallery-main img{width:100%;height:100%;object-fit:cover;}
.thumb-strip{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap;}
.thumb{width:64px;height:48px;border-radius:10px;overflow:hidden;border:2px solid transparent;cursor:pointer;background:#e2e2e6;}
.thumb img{width:100%;height:100%;object-fit:cover;}
.thumb.active{border-color:var(--steel);}
.spec-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px 20px;margin:18px 0;}
.spec-item{border-bottom:1px solid var(--line);padding-bottom:9px;}
.spec-label{font-size:10.5px;color:var(--muted);letter-spacing:0.01em;}
.spec-value{font-size:14.5px;font-weight:600;margin-top:3px;color:var(--ink);}
.desc-block{font-size:14.5px;color:var(--ink);line-height:1.65;margin:16px 0;}
.sticky-panel{position:sticky;top:88px;}
.photo-upload-box{border:2px dashed var(--line);border-radius:16px;padding:20px;text-align:center;background:#fbfbfc;}
.photo-upload-box input{display:none;}
.upload-label{display:inline-block;padding:9px 20px;background:var(--steel);color:#fff;border-radius:980px;font-size:13.5px;font-weight:500;cursor:pointer;}
.preview-strip{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap;}
.preview-thumb{position:relative;width:70px;height:52px;border-radius:10px;overflow:hidden;}
.preview-thumb img{width:100%;height:100%;object-fit:cover;}
.preview-thumb .rm{position:absolute;top:3px;right:3px;background:rgba(0,0,0,0.6);color:#fff;border:none;border-radius:50%;width:18px;height:18px;font-size:11px;line-height:1;}

.legal-panel{max-width:760px;}
.legal-panel h1{font-size:28px;}
.legal-panel h3{font-size:15px;margin:20px 0 5px;color:var(--ink);font-weight:600;}
.legal-panel p{font-size:14.5px;line-height:1.65;color:var(--ink);margin:0 0 4px;}
.legal-hint{background:#FFF3E0;border:1px solid var(--amber-dark);color:var(--amber-dark);padding:11px 14px;border-radius:12px;font-size:13.5px;margin-bottom:12px;}

.spinner-row{text-align:center;padding:48px;color:var(--muted);font-size:14px;}

/* ---- Homepage / marketing ---- */
.hero{max-width:820px;margin:0 auto;text-align:center;padding:64px 20px 40px;}
.hero-eyebrow{font-size:13px;font-weight:600;color:var(--steel);margin-bottom:14px;}
.hero-title{font-size:44px;line-height:1.08;font-weight:700;letter-spacing:-0.02em;margin:0 0 16px;}
.hero-sub{font-size:18px;line-height:1.5;color:var(--muted);max-width:600px;margin:0 auto 30px;font-weight:400;}
.hero-ctas{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;}
.hero-ctas .btn{padding:13px 28px;font-size:16px;}

.section{max-width:1080px;margin:0 auto;padding:56px 28px;}
.section-head{text-align:center;max-width:600px;margin:0 auto 36px;}
.section-eyebrow{font-size:12.5px;font-weight:600;color:var(--steel);margin-bottom:10px;}
.section-title{font-size:30px;font-weight:700;letter-spacing:-0.015em;margin:0 0 10px;}
.section-sub{font-size:15.5px;color:var(--muted);line-height:1.5;}

.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.step-card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:28px 24px;}
.step-num{width:32px;height:32px;border-radius:50%;background:var(--steel);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;margin-bottom:16px;}
.step-title{font-size:17px;font-weight:600;margin-bottom:8px;letter-spacing:-0.01em;}
.step-body{font-size:14px;color:var(--muted);line-height:1.55;}

.trust-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.trust-item{display:flex;gap:14px;align-items:flex-start;padding:20px;background:var(--panel);border:1px solid var(--line);border-radius:16px;}
.trust-icon{width:38px;height:38px;border-radius:10px;background:#F0F7FF;color:var(--steel);display:flex;align-items:center;justify-content:center;font-size:17px;flex-shrink:0;}
.trust-title{font-size:15px;font-weight:600;margin-bottom:4px;}
.trust-body{font-size:13.5px;color:var(--muted);line-height:1.5;}

.category-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:16px;}
.category-item{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:20px 12px;text-align:center;}
.category-item svg{width:64px;height:34px;margin-bottom:10px;}
.category-label{font-size:13px;font-weight:600;color:var(--ink);}

.cta-band{background:var(--ink);border-radius:24px;padding:52px 32px;text-align:center;color:#fff;margin:0 28px 64px;max-width:1080px;margin-left:auto;margin-right:auto;}
.cta-band h2{color:#fff;font-size:28px;margin:0 0 10px;}
.cta-band p{color:#a1a1a6;font-size:15px;margin:0 0 24px;}

@media (max-width:800px){
  .hero-title{font-size:32px;}
  .steps-grid, .trust-grid{grid-template-columns:1fr;}
  .nav-left{display:none;}
}

@media (max-width:800px){.detail-grid{grid-template-columns:1fr;} .sticky-panel{position:static;}}
@media (max-width:640px){.field-row,.field-row3{grid-template-columns:1fr;} .nav-user{display:none;} .spec-grid{grid-template-columns:1fr;}}