:root{--bg:#f6f7f4;--card:#fff;--ink:#1f2a24;--muted:#6b766f;--brand:#2e7d4f;--line:#e3e7e1;--today:#fff6dc;--today-line:#e8b923;--danger:#c0392b}
@media (prefers-color-scheme:dark){:root{--bg:#141815;--card:#1d231f;--ink:#e8ede9;--muted:#9aa59d;--line:#2d3530;--today:#3a3318;--today-line:#c9a227}}
*{box-sizing:border-box}
body{margin:0;font:16px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink)}
header{background:var(--brand);color:#fff;padding:14px 16px}
header .in{max-width:1800px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:12px}
header h1{margin:0;font-size:1.15rem}
header a{color:#fff;opacity:.85;font-size:.9rem}
main{max-width:1800px;margin:auto;padding:16px}
.nav{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.nav .title{flex:1;min-width:180px;text-align:center;font-weight:600}
button,.btn{font:inherit;border:1px solid var(--line);background:var(--card);color:var(--ink);padding:8px 14px;border-radius:8px;cursor:pointer;text-decoration:none;display:inline-block}
button.primary{background:var(--brand);border-color:var(--brand);color:#fff}
button.danger{color:var(--danger)}
button:disabled{opacity:.5;cursor:default}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px}
.day{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px}
.day.today{background:var(--today);border-color:var(--today-line)}
.day h3{margin:0 0 6px;font-size:1rem;display:flex;justify-content:space-between}
.day h3 small{color:var(--muted);font-weight:400}
.meal{margin-top:8px}
.meal b{font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;color:var(--brand)}
.meal ul{margin:2px 0 0;padding-left:18px}
.muted{color:var(--muted)}
.empty{text-align:center;padding:48px 16px;color:var(--muted)}
.note{font-size:.85rem;color:var(--muted);margin-top:14px}
/* admin */
.panel{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;margin-bottom:16px}
.panel h2{margin:0 0 10px;font-size:1.05rem}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
input[type=password],input[type=date],input[type=text]{font:inherit;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink)}
.editor{overflow-x:auto}
.editor table{border-collapse:collapse;min-width:760px;width:100%}
.editor th,.editor td{border:1px solid var(--line);padding:4px;vertical-align:top}
.editor th{background:var(--bg);font-size:.85rem}
.editor .cell{display:flex;flex-direction:column;gap:4px;min-width:150px}
.dish{display:flex;gap:3px;align-items:flex-start}
.dish textarea.dn{flex:1;min-width:0;font:inherit;font-size:.9rem;line-height:1.35;border:1px solid var(--line);border-radius:6px;padding:4px 6px;background:var(--bg);color:var(--ink);resize:none;overflow:hidden}
.dish.new textarea.dn{border-color:var(--today-line)}
.dish .add{display:none}.dish.new .add{display:inline-block}
button.mini{padding:2px 6px;font-size:.78rem;border-radius:6px}
.dish .del{color:var(--danger)}
button.addrow{align-self:flex-start;color:var(--muted);border-style:dashed}
#suggest{position:fixed;z-index:40;max-height:240px;overflow:auto;background:var(--card);border:1px solid var(--line);border-radius:8px;box-shadow:0 6px 20px rgba(0,0,0,.35)}
#suggest[hidden]{display:none}
#suggest div{padding:6px 10px;cursor:pointer;font-size:.9rem}
#suggest div:hover,#suggest div.on{background:var(--brand);color:#fff}
.editor input.mealname{width:100%;font-weight:600}
.msg{margin:8px 0;padding:8px 12px;border-radius:8px;background:var(--bg)}
.msg.err{color:var(--danger)}
.preview{max-width:100%;max-height:260px;border-radius:8px;border:1px solid var(--line)}
table.weeks{width:100%;border-collapse:collapse}
table.weeks td{padding:6px 4px;border-top:1px solid var(--line)}
@media (max-width:600px){main{padding:12px}.grid{grid-template-columns:1fr}}

#imgBox{margin-top:14px;text-align:center}
#imgBox[hidden]{display:none}
#imgBox img{max-width:100%;border-radius:12px;border:1px solid var(--line)}

.preview{cursor:zoom-in}
#zoomBox{position:sticky;top:0;z-index:5;background:var(--card);border:1px solid var(--line);border-radius:10px;margin-bottom:10px;box-shadow:0 4px 14px rgba(0,0,0,.25)}
#zoomBox[hidden]{display:none}
#zoomBox .zbar{display:flex;gap:8px;align-items:center;padding:8px 10px;border-bottom:1px solid var(--line)}
#zoomBox .zbar b{flex:0 0 auto}#zoomBox .zbar span{flex:1;font-size:.8rem}
#zoomBox .zview{max-height:48vh;overflow:auto;background:#000;cursor:grab;user-select:none;touch-action:none}
#zoomBox .zview.drag{cursor:grabbing}
#zoomBox .zview img{display:block;width:100%;max-width:none}

/* admin: sidebar dọc + nội dung */
.layout{display:grid;grid-template-columns:200px 1fr;gap:16px;align-items:start}
.side{position:sticky;top:12px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:8px;display:flex;flex-direction:column;gap:2px}
.side a{display:block;padding:10px 12px;border-radius:8px;color:var(--ink);text-decoration:none}
.side a:hover{background:var(--bg)}
.side a.active{background:var(--brand);color:#fff}
.content{min-width:0}
[data-v][hidden]{display:none}
@media (max-width:760px){
  .layout{grid-template-columns:1fr}
  .side{position:static;flex-direction:row;overflow-x:auto}
  .side a{white-space:nowrap}
}

.newrow{display:flex;gap:8px;align-items:center;margin:4px 0}
.newrow input[type=text]{flex:1;min-width:0}

.progress{height:10px;background:var(--bg);border:1px solid var(--line);border-radius:6px;overflow:hidden;margin-top:10px}
.progress #ocrFill{height:100%;width:0;background:var(--brand);transition:width .2s linear}

#toast{position:fixed;top:16px;right:16px;z-index:50;max-width:min(420px,calc(100vw - 32px));padding:12px 16px;border-radius:10px;background:var(--brand);color:#fff;box-shadow:0 6px 20px rgba(0,0,0,.35);opacity:0;transform:translateY(-8px);pointer-events:none;transition:opacity .2s,transform .2s}
#toast.show{opacity:1;transform:none}
#toast.err{background:var(--danger)}

.thumbs{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}
.thumbs:empty{display:none}
.thumbs img{height:64px;border-radius:6px;border:1px solid var(--line);cursor:zoom-in}