:root{
  --cream:#fdf4ec;
  --paper:#ffffff;
  --red:#c8102e;
  --red-deep:#a30e24;
  --ink:#5a2a2a;
  --ink-soft:#8a5a55;
  --gold:#c9962c;
  --muted:#a08a80;
  --line:#e8d3c8;
  --shadow:0 8px 26px rgba(200,16,46,.10);
  --radius:18px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC",system-ui,sans-serif;
  background:radial-gradient(1200px 600px at 10% -10%, #ffe9e0 0%, transparent 55%),
             radial-gradient(1000px 500px at 100% 0%, #fff0e6 0%, transparent 50%),
             var(--cream);
  color:var(--ink);
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}

/* topbar */
.topbar{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 22px;background:rgba(255,255,255,.72);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:20;
}
.brand{display:flex;align-items:flex-end;gap:10px}
.brand-logo{font-size:24px;font-weight:800;color:var(--red);letter-spacing:2px}
.brand-sub{font-size:13px;color:var(--ink-soft);padding-bottom:3px}
.topnav{display:flex;gap:8px}
.nav-link{
  padding:8px 16px;border-radius:999px;font-size:15px;font-weight:600;color:var(--ink-soft);
  transition:.18s;
}
.nav-link:hover{color:var(--red)}
.nav-link.active{background:var(--red);color:#fff}

/* layout */
.page{max-width:1180px;margin:0 auto;padding:22px 20px 60px}
.hidden{display:none!important}

/* hero */
.hero{text-align:center;padding:18px 0 8px}
.hero h1{
  margin:0;font-size:34px;letter-spacing:1px;color:var(--red);
  text-shadow:0 2px 0 rgba(255,255,255,.6);
}
.hero p{margin:8px 0 0;color:var(--ink-soft);font-size:15px}
.admin-hero h1{color:var(--ink)}

/* controls */
.controls{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;margin:24px 0 8px}
.control-group{display:flex;flex-direction:column;gap:8px;align-items:center}
.control-group label{font-size:13px;color:var(--ink-soft);font-weight:600}
.segmented{display:flex;gap:6px;background:rgba(255,255,255,.8);border:1px solid var(--line);
  border-radius:999px;padding:5px;box-shadow:var(--shadow)}
.seg{
  border:none;background:transparent;padding:9px 18px;border-radius:999px;
  font-size:15px;font-weight:600;color:var(--ink-soft);cursor:pointer;transition:.18s;
}
.seg:hover{color:var(--red)}
.seg.active{background:var(--red);color:#fff;box-shadow:0 3px 8px rgba(200,16,46,.25)}

/* menu grid */
.menu-grid{
  display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:18px;
}
.day-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px 14px;box-shadow:var(--shadow);
}
.day-card .day-title{
  font-size:18px;font-weight:700;color:#fff;background:var(--red);
  border-radius:14px;text-align:center;padding:8px 0;margin:-4px 0 14px;
}
.day-card h4{
  margin:0 0 8px;font-size:14px;color:var(--red);display:flex;align-items:center;gap:6px;
}
.day-card h4::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--gold)}
.dish-list{list-style:none;margin:0 0 12px;padding:0}
.dish-list li{
  font-size:15px;color:var(--ink);padding:4px 0;border-bottom:1px dashed var(--line);
}
.dish-list li:last-child{border-bottom:none}
.meal-meta{font-size:13px;color:var(--ink-soft);margin-top:6px}
.meal-meta b{color:#6b4636}
.closed-tip{color:var(--muted);font-size:13px;font-style:italic}

/* poster */
.poster-box{
  margin-top:30px;background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius);padding:22px;text-align:center;box-shadow:var(--shadow);
}
.poster-box h3{margin:0 0 16px;color:var(--red)}
.poster-box img{
  max-width:100%;max-height:520px;border-radius:12px;border:1px solid var(--line);
  box-shadow:0 8px 30px rgba(0,0,0,.08);
}
.poster-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:18px}

/* buttons */
.btn{
  display:inline-block;border:1px solid var(--line);background:#fff;color:var(--ink);
  padding:10px 20px;border-radius:999px;font-size:15px;font-weight:600;cursor:pointer;
  transition:.18s;
}
.btn:hover{border-color:var(--red);color:var(--red)}
.btn-primary{background:var(--red);border-color:var(--red);color:#fff}
.btn-primary:hover{background:var(--red-deep);color:#fff}
.btn-sm{padding:6px 12px;font-size:13px;border-radius:10px}

/* admin */
.admin-toolbar{
  display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end;justify-content:space-between;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px 18px;margin:18px 0;box-shadow:var(--shadow);
}
.admin-toolbar .control-group{align-items:flex-start}
.admin-toolbar select,.admin-toolbar input{
  font-family:inherit;font-size:15px;padding:10px 12px;border:1px solid var(--line);
  border-radius:12px;background:#fff;min-width:180px;color:var(--ink);
}
.admin-toolbar input{min-width:240px}
.actions{flex-direction:row!important;gap:10px}

/* admin day cards */
.a-days{display:flex;flex-direction:column;gap:16px}
.a-day{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px;box-shadow:var(--shadow);
}
.a-day-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.a-day-head .day-title{font-size:18px;font-weight:700;color:var(--red)}
.a-copy{display:flex;gap:8px}
.a-tier-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.a-tier{
  border:1px solid var(--line);border-radius:14px;padding:14px;background:#fffdfa;
}
.a-tier .tier-title{font-size:16px;font-weight:700;color:var(--red);margin-bottom:10px}
.a-meal{border-top:1px dashed var(--line);padding-top:10px;margin-top:10px}
.a-meal-head{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.a-meal-head label{font-weight:700;font-size:14px}
.field{margin-bottom:8px}
.field label{display:block;font-size:12px;color:var(--ink-soft);margin-bottom:4px}
.field textarea,.field input{
  width:100%;font-family:inherit;font-size:14px;padding:8px 10px;border:1px solid var(--line);
  border-radius:10px;background:#fff;color:var(--ink);resize:vertical;
}
.switch{position:relative;display:inline-flex;align-items:center;gap:6px;cursor:pointer;font-size:13px;color:var(--ink-soft)}
.switch input{display:none}
.switch .track{width:38px;height:22px;border-radius:99px;background:#ddd;position:relative;transition:.2s}
.switch .track::after{content:"";position:absolute;top:2px;left:2px;width:18px;height:18px;border-radius:50%;background:#fff;transition:.2s}
.switch input:checked+.track{background:var(--red)}
.switch input:checked+.track::after{left:18px}

/* toast */
.toast{
  position:fixed;bottom:24px;left:50%;transform:translateX(-50%);
  background:var(--ink);color:#fff;padding:12px 22px;border-radius:999px;
  font-size:14px;z-index:50;box-shadow:0 8px 24px rgba(0,0,0,.18);
}

/* responsive */
@media (max-width:900px){
  .menu-grid{grid-template-columns:repeat(2,1fr)}
  .a-tier-grid{grid-template-columns:1fr}
}
@media (max-width:560px){
  .page{padding:16px 12px 48px}
  .hero h1{font-size:26px}
  .topbar{padding:12px 14px}
  .brand-logo{font-size:20px}
  .controls{flex-direction:column;align-items:stretch}
  .control-group{align-items:stretch}
  .segmented{width:100%;justify-content:center}
  .seg{flex:1}
  .menu-grid{grid-template-columns:1fr}
  .admin-toolbar{flex-direction:column;align-items:stretch}
  .admin-toolbar select,.admin-toolbar input{width:100%;min-width:0}
  .a-day-head{flex-direction:column;align-items:flex-start;gap:8px}
}

/* NEW ADMIN GRID */
.a-grid{display:flex;flex-direction:column;gap:14px;margin:6px 0 26px}
.a-tier-tabs{
  display:flex;gap:8px;background:rgba(255,255,255,.8);border:1px solid var(--line);
  border-radius:999px;padding:5px;box-shadow:var(--shadow);width:max-content;max-width:100%;
  margin:0 auto 14px;
}
.a-tier-tabs .seg{white-space:nowrap}
.a-day-group{display:flex;flex-direction:column;gap:12px}
.a-collapsed-row{
  background:var(--paper);border:1px dashed var(--line);border-radius:14px;
  padding:12px 14px;box-shadow:var(--shadow);
}
.closed-note{font-size:13px;color:var(--muted);font-style:italic}
.a-cell{
  background:var(--paper);border:1px solid var(--line);border-radius:14px;
  padding:12px 14px;box-shadow:var(--shadow);min-width:0;
}
.a-cell.collapsed .a-meal-body{display:none}
.a-meal-head{
  display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:8px;
}
.a-meal-tag{font-weight:700;font-size:14px;color:var(--red)}
.a-meal-body{display:flex;flex-direction:column;gap:10px}
.dish-module{
  border:1px dashed var(--line);border-radius:12px;padding:10px;background:#fffdfa;
}
.dish-list{display:flex;flex-direction:column;gap:8px;min-height:8px}
.dish{
  display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);
  border-radius:10px;padding:6px 8px;cursor:grab;
}
.dish.dragging{opacity:.5;background:#ffeef0;border-color:var(--red)}
.dish.drop-target{border-color:var(--red);background:#fff2f2}
.dish-drag{color:var(--ink-soft);cursor:grab;font-size:16px;user-select:none}
.dish-input{
  flex:1;font-family:inherit;font-size:14px;padding:6px 8px;border:1px solid var(--line);
  border-radius:8px;background:#fff;color:var(--ink);min-width:0;
}
.dish-del{
  border:none;background:transparent;color:var(--muted);cursor:pointer;font-size:14px;
  padding:2px 4px;border-radius:6px;line-height:1;
}
.dish-del:hover{color:var(--red);background:#fff0f0}
.dish-empty{color:var(--muted);font-size:13px;text-align:center;padding:6px}
.dish-add{align-self:flex-start}
.a-cell .field{margin:0}
.a-cell .field label{font-size:12px;color:var(--ink-soft);display:block;margin-bottom:4px}
.a-cell .field input{
  width:100%;font-family:inherit;font-size:14px;padding:8px 10px;border:1px solid var(--line);
  border-radius:10px;background:#fff;color:var(--ink);
}
@media (max-width:860px){
  .a-grid{flex-direction:column}
  .a-tier-tabs{width:100%}
}
@media (max-width:560px){
  .a-cell{padding:10px 12px}
  .a-tier-tabs .seg{flex:1}
}

/* AI assistant */
.ai-panel{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;margin:18px 0;box-shadow:var(--shadow);
}
.ai-panel h3{margin:0 0 12px;color:var(--red)}
.ai-row{display:flex;gap:10px;align-items:stretch}
.ai-row select{
  font-family:inherit;font-size:14px;padding:8px 10px;border:1px solid var(--line);
  border-radius:10px;background:#fff;color:var(--ink);align-self:center;
}
.ai-row textarea{
  flex:1;font-family:inherit;font-size:14px;padding:10px 12px;border:1px solid var(--line);
  border-radius:10px;background:#fff;color:var(--ink);resize:vertical;min-height:52px;
}
.ai-preview{margin-top:12px}
.ai-diff{display:flex;flex-direction:column;gap:6px}
.ai-empty{color:var(--muted);font-size:14px}
.ai-diff-line{padding:8px 10px;border-radius:10px;background:#fff6f0;font-size:14px;color:var(--ink)}
.ai-diff-line.add{background:#eef7f0;color:#2f7a45}
.ai-diff-line.remove{background:#fdeeee;color:#b53b3b;text-decoration:line-through}
.ai-diff-line.update{background:#fff4e0;color:#a06a1c}
.ai-diff-line.hide{background:#eef0f7;color:#4a5a8a}
.ai-actions{display:flex;gap:10px;margin-top:12px}
@media (max-width:560px){
  .ai-row{flex-direction:column}
  .ai-row select{align-self:stretch}
}