/* DatVietNam.com — màu lấy từ giấy tờ đất: mực xanh đen, đỏ sổ đỏ, vàng ô đất ở trên bản đồ địa chính.
   Bố cục: một cột trên điện thoại; mã lô luôn hiện như một tấm biển mốc. */
:root{--ink:#14202b;--ink2:#51606d;--red:#c4262e;--gold:#ffd84d;--line:#d9dfdc;--bg:#f4f6f1;--card:#fff;--blue:#1f6f8b;
  --sans:"Be Vietnam Pro",system-ui,"Segoe UI",Roboto,sans-serif;--mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.5 var(--sans)}
a{color:var(--blue)}
img{max-width:100%;height:auto;display:block}
[hidden]{display:none!important}
h1,h2{line-height:1.2;text-wrap:balance;margin:0}
h1{font-size:1.6rem;font-weight:800}
h2{font-size:1.1rem;font-weight:600;margin-top:28px}
:focus-visible{outline:3px solid var(--blue);outline-offset:2px}

.top{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:10px;background:var(--ink);color:#fff;padding:10px 16px;padding-top:calc(10px + env(safe-area-inset-top,0px))}
.logo{flex:1;color:#fff;text-decoration:none;font-size:1.15rem;font-weight:600;letter-spacing:-.01em;white-space:nowrap}
.logo b{font-weight:800;color:var(--gold)}
.logo i{font-style:normal;opacity:.6;font-size:.85em}
.menu-btn{background:none;border:1px solid rgba(255,255,255,.3);color:#fff;border-radius:8px;padding:7px 10px;font:600 .9rem var(--sans);cursor:pointer}
#menu{position:sticky;top:54px;z-index:19;background:var(--card);border-bottom:1px solid var(--line);padding:12px 16px;display:grid;gap:4px;box-shadow:0 12px 24px rgba(20,32,43,.12)}
#menu>a{padding:10px 4px;color:var(--ink);text-decoration:none;font-weight:600;border-bottom:1px solid var(--line)}
.visit{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:.85rem;color:var(--ink2);padding-top:10px}
.visit b{width:100%;color:var(--ink)}
.visit em{font-style:normal;font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--ink);color:#fff;border:0;border-radius:10px;padding:10px 16px;font:600 .95rem var(--sans);text-decoration:none;cursor:pointer;white-space:nowrap}
.btn.post,.btn.big{background:var(--red)}
.btn.big{padding:15px 22px;font-size:1.05rem;width:100%}
.btn.alt{background:var(--ink)}
.btn.ghost{background:none;color:var(--ink);border:1.5px solid var(--line);width:100%}
.btn:disabled{opacity:.6}

main{max-width:1080px;margin:0 auto;padding:0 16px 40px}
.hero{padding:28px 0 8px}
.hero h1{font-size:clamp(1.7rem,6vw,2.6rem);max-width:16ch}
.hero p{color:var(--ink2);margin:10px 0 18px;max-width:46ch}
.heroacts{display:grid;gap:12px;max-width:520px}
.find label{font-size:.85rem;color:var(--ink2);display:block;margin:10px 0 4px}
.find div,.copy{display:flex;gap:8px}
.find input,.copy input{flex:1;min-width:0}
input,select,textarea{font:500 1rem var(--sans);color:var(--ink);background:var(--card);border:1.5px solid var(--line);border-radius:10px;padding:12px;width:100%}
.find input{font-family:var(--mono);text-transform:uppercase}
.find input::placeholder{font-family:var(--sans);text-transform:none}
.find button{background:var(--ink);color:#fff;border:0;border-radius:10px;padding:0 16px;font:600 .95rem var(--sans);cursor:pointer}

.filter{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin:20px 0 10px}
.filter .mode{background:var(--card);color:var(--ink);border:1.5px solid var(--ink)}
@media(min-width:720px){.filter{grid-template-columns:repeat(4,minmax(0,1fr))}}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.tagbar{flex-wrap:nowrap;overflow-x:auto;padding-bottom:8px;margin-bottom:8px;scrollbar-width:none}
.chips.ro a,.chips label span{display:block;border:1.5px solid var(--line);background:var(--card);border-radius:99px;padding:7px 14px;font-size:.9rem;font-weight:500;color:var(--ink);text-decoration:none;white-space:nowrap;cursor:pointer}
.chips.ro a.on,.chips input:checked+span{background:var(--ink);border-color:var(--ink);color:#fff}
.chips input{position:absolute;opacity:0;pointer-events:none}
.chips input:focus-visible+span{outline:3px solid var(--blue);outline-offset:2px}

.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
@media(min-width:720px){.grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}}
@media(min-width:1000px){.grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
.lot{position:relative;display:block;border-radius:12px;overflow:hidden;background:var(--ink);aspect-ratio:4/5;text-decoration:none}
.lot img{width:100%;height:100%;object-fit:cover}
.lot s{position:absolute;inset:auto 0 42%;text-align:center;text-decoration:none;background:var(--red);color:#fff;font-weight:800;padding:6px;transform:rotate(-6deg)}
.lot s.coc{background:var(--ink)}
.nocard{height:100%;display:flex;flex-direction:column;justify-content:flex-end;gap:4px;padding:14px;color:#fff}
.nocard b{color:var(--gold);font-size:1.5rem;font-weight:800}
.nocard code{font-family:var(--mono);background:var(--red);align-self:flex-start;padding:2px 8px;border-radius:4px;margin-top:6px}
.pager{display:flex;gap:10px;justify-content:center;margin-top:20px}

/* Lướt: mỗi lần vuốt một lô */
body.luot footer{display:none}
.snap{height:calc(100dvh - 190px);overflow-y:auto;scroll-snap-type:y mandatory;display:grid;gap:14px;scrollbar-width:none;border-radius:14px}
.snap .lot{scroll-snap-align:start;height:calc(100dvh - 190px);aspect-ratio:auto;max-width:560px;width:100%;margin:0 auto}
.snap .lot img{object-fit:contain}

.sheet{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px 18px;margin:20px auto 0;max-width:620px}
.sheet.wide{max-width:none}
.note{color:var(--ink2);font-size:.9rem;margin:6px 0 0}
.err{background:#fde9ea;color:#8e1219;border-radius:10px;padding:10px 12px;font-weight:500;margin:0}
.f{display:grid;gap:16px;margin-top:18px}
.f label{display:grid;gap:5px;font-size:.88rem;font-weight:600;min-width:0}
.row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.unit{display:flex;gap:6px}
.unit input{min-width:0}
.unit select{width:auto;flex:none}
fieldset{border:0;padding:0;margin:0;min-width:0}
legend{font-size:.88rem;font-weight:600;padding:0;margin-bottom:8px}
details{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:12px 0}
details[open]{display:grid;gap:14px}
summary{font-weight:600;cursor:pointer}
.hp{position:absolute;left:-9999px;width:1px;height:1px}
.photos{display:flex;gap:8px;overflow-x:auto}
.photos .add{flex:none;width:92px;height:92px;border:2px dashed var(--red);border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--red);font-size:1.6rem;line-height:1;cursor:pointer}
.photos .add span{font-size:.75rem;font-weight:600;margin-top:4px}
#thumbs{display:flex;gap:8px}
#thumbs button{flex:none;width:92px;height:92px;border-radius:12px;border:0;background:var(--line) center/cover;color:#fff;font-size:1.2rem;display:flex;align-items:flex-start;justify-content:flex-end;padding:4px 8px;text-shadow:0 0 4px #000;cursor:pointer}

/* Biển mã lô: như tấm biển mốc ranh */
.plate{display:inline-block;font:700 1.7rem/1 var(--mono);color:var(--red);background:#fff;border:3px solid var(--red);border-radius:6px;padding:10px 14px;letter-spacing:.06em;box-shadow:0 0 0 4px #fff,0 0 0 5px var(--line)}
.eyebrow{font-size:.8rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--ink2);margin:0 0 12px}
.done{text-align:center}
.done img{width:min(100%,360px);margin:18px auto 6px;border-radius:12px;box-shadow:0 10px 30px rgba(20,32,43,.2)}
.size{font-size:.85rem;color:var(--ink2);margin:0 0 14px;font-variant-numeric:tabular-nums}
.acts{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px;margin:14px 0}
.done textarea{margin:10px 0 8px;font-size:.9rem;text-align:left}
.acts2{display:flex;justify-content:center;gap:24px;margin:16px 0 0;font-weight:600}

.lotpage{display:grid;gap:20px;margin-top:16px}
@media(min-width:820px){.lotpage{grid-template-columns:minmax(0,420px) minmax(0,1fr);align-items:start}}
.media{display:grid;gap:10px}
.media img{width:100%;border-radius:12px}
.info h1{font-size:1.35rem;margin-top:14px}
.price{font-size:2rem;font-weight:800;color:var(--red);margin:6px 0 12px}
.price small{font-size:.95rem;font-weight:500;color:var(--ink2)}
.st{display:inline-block;margin-left:10px;background:var(--ink);color:#fff;font-weight:600;border-radius:6px;padding:4px 10px;vertical-align:top}
.st.ban{background:var(--red)}
dl{margin:16px 0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden}
dl div{background:var(--card);padding:10px 12px}
dt{font-size:.78rem;color:var(--ink2)}
dd{margin:0;font-weight:600;font-variant-numeric:tabular-nums}
.descr{max-width:65ch}
.who{font-size:.85rem;color:var(--ink2)}
#owner{background:#fff8dc;border:1px solid var(--gold);border-radius:12px;padding:14px;margin-top:20px;display:grid;gap:12px}
#owner h2{margin:0}
#owner label{display:grid;gap:5px;font-size:.88rem;font-weight:600}
.hist{list-style:none;padding:0;margin:10px 0;font-size:.92rem}
.hist li{padding:6px 0;border-bottom:1px solid var(--line)}
.hist time{color:var(--ink2);font-variant-numeric:tabular-nums;margin-right:8px}

.stats{display:flex;flex-wrap:wrap;gap:8px 22px;margin:14px 0}
.stats b{font-size:1.3rem;font-variant-numeric:tabular-nums}
.tbl{overflow-x:auto;margin-top:14px}
table{border-collapse:collapse;width:100%;font-size:.9rem;white-space:nowrap}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line)}
td select{padding:6px;width:auto}
code{font-family:var(--mono)}
footer{text-align:center;color:var(--ink2);font-size:.82rem;padding:24px 16px calc(28px + env(safe-area-inset-bottom,0px))}
footer p{margin:2px 0}
@media(prefers-reduced-motion:no-preference){.btn{transition:transform .12s}.btn:active{transform:scale(.97)}}