:root{
  --bg:#070b16;
  --panel:#10172e;
  --panel2:#0c1324;
  --card:#131c36;
  --text:#ecf1ff;
  --muted:#9fb0d6;
  --line:rgba(255,255,255,.08);
  --line2:rgba(255,255,255,.12);
  --cyan:#67e8f9;
  --vio:#7c3aed;
  --green:#34d399;
  --red:#fb7185;
  --yellow:#fbbf24;
  --shadow:0 10px 30px rgba(0,0,0,.28);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  overflow-x:hidden;
  color:var(--text);
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  background:
    radial-gradient(700px 250px at 0% -10%, rgba(124,58,237,.28), transparent),
    radial-gradient(900px 350px at 100% 0%, rgba(103,232,249,.08), transparent),
    var(--bg);
}

a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
code{
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  border-radius:6px;
  padding:2px 6px;
}

.container{
  width:min(1280px, 94%);
  margin:0 auto;
}

.page-wrap{
  margin-top:14px;
  margin-bottom:24px;
}

/* Topbar */
.topbar{
  position:sticky; top:0; z-index:50;
  background:rgba(7,11,22,.78);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  display:flex; align-items:center; justify-content:space-between; gap:10px;
  padding:12px 0;
}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.logo{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  font-weight:900;color:#061223;
  background:linear-gradient(135deg,var(--vio),var(--cyan));
  flex:0 0 auto;
}
.brand-title{font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-sub{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.top-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;justify-content:flex-end}

/* Buttons */
.btn{
  appearance:none;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--text);
  border-radius:10px;
  padding:8px 12px;
  font-weight:700;
  font-size:13px;
  cursor:pointer;
  line-height:1.1;
}
.btn:hover{border-color:var(--line2)}
.btn.primary{
  border:none;
  background:linear-gradient(135deg,#22d3ee,#3b82f6);
  color:#051321;
}
.btn.green{
  border:none;
  background:linear-gradient(135deg,#22c55e,#14b8a6);
  color:#03140f;
}
.btn.red{
  border:none;
  background:linear-gradient(135deg,#fb7185,#ef4444);
  color:#fff;
}
.btn.alert-btn{
  border:1px solid rgba(251,191,36,.4);
  background:linear-gradient(135deg, rgba(124,58,237,.28), rgba(59,130,246,.18));
  box-shadow:0 0 0 1px rgba(124,58,237,.18) inset;
}
.btn.alert-btn:hover{
  border-color:rgba(251,191,36,.65);
}
.btn.mini-btn{
  padding:6px 8px;
  font-size:12px;
}

/* Generic */
.panel{
  border:1px solid var(--line);
  background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.01));
  border-radius:14px;
  padding:12px;
  box-shadow:var(--shadow);
  min-width:0;
}
.panel-flex{
  display:flex;
  flex-direction:column;
}
.panel-title-row{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:10px;
  margin-bottom:10px;
  flex-wrap:wrap;
}
.panel-title-row h2{
  margin:0;
  font-size:18px;
  line-height:1.2;
}
.muted{color:var(--muted);font-size:13px}
.notice{
  border:1px solid rgba(251,191,36,.25);
  background:rgba(251,191,36,.07);
  color:#fde68a;
  border-radius:12px;
  padding:10px 12px;
}
.empty{
  border:1px dashed var(--line);
  border-radius:12px;
  padding:18px;
  text-align:center;
  color:var(--muted);
}
.mt12{margin-top:12px}
.mb8{margin-bottom:8px}
.mt10{margin-top:10px}
.line-through{text-decoration:line-through;opacity:.75}

/* Hero + Toolbar */
.hero{
  border:1px solid var(--line);
  border-radius:16px;
  padding:16px;
  background:linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.01));
  box-shadow:var(--shadow);
}
.hero h1{
  margin:0 0 6px;
  font-size:clamp(22px, 4vw, 34px);
  line-height:1.1;
}
.hero p{margin:0;color:var(--muted)}

.toolbar{
  display:grid;
  grid-template-columns:1.2fr .8fr .8fr .9fr;
  gap:10px;
  margin-top:12px;
}
.tool{
  border:1px solid var(--line);
  background:var(--panel);
  border-radius:12px;
  padding:10px;
  min-width:0;
}
.tool input,.tool select{
  width:100%;
  border:none;
  outline:none;
  background:transparent;
  color:var(--text);
  min-width:0;
}
.tool option{color:#111}

/* Layout public */
.layout{
  display:grid;
  grid-template-columns:320px minmax(0,1fr);
  gap:12px;
  margin-top:12px;
  align-items:start;
}
.sidebar{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.content{
  min-width:0;
}

/* Quick groups */
.quick-list{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.quick-pill{
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--text);
  border-radius:999px;
  padding:6px 10px;
  font-size:12px;
  cursor:pointer;
  max-width:100%;
}
.quick-pill.active{
  border-color:#60a5fa;
  background:rgba(59,130,246,.12);
}

/* Popular */
.popular-list{
  display:flex;
  flex-direction:column;
  gap:8px;
  min-width:0;
}
.popular-item{
  border:1px solid var(--line);
  background:var(--panel2);
  border-radius:10px;
  padding:8px;
  display:grid;
  grid-template-columns:64px minmax(0,1fr);
  gap:8px;
  min-width:0;
}
.popular-img img{
  width:64px;height:64px;object-fit:cover;border-radius:8px;
}
.popular-info{min-width:0}
.popular-name{
  display:block;
  font-size:12px;
  line-height:1.3;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.popular-price{
  font-size:12px;
  font-weight:800;
  margin-top:2px;
}
.popular-price span{
  color:var(--muted);
  text-decoration:line-through;
  font-weight:500;
  margin-left:4px;
}
.popular-meta{
  font-size:11px;
  color:var(--muted);
  margin-top:2px;
}

/* Deal grid/cards */
.deal-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:12px;
  min-width:0;
}
.deal-card{
  border:1px solid var(--line);
  background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.01));
  border-radius:14px;
  overflow:hidden;
  display:grid;
  grid-template-columns:240px minmax(0,1fr);
  min-width:0;
}
.deal-thumb{
  position:relative;
  border-right:1px solid var(--line);
  background:var(--panel2);
  aspect-ratio:4/3;
}
.deal-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.badges{
  position:absolute;
  top:8px; left:8px;
  display:flex; gap:6px; flex-wrap:wrap;
  z-index:2;
}
.badge{
  border:1px solid rgba(255,255,255,.14);
  background:rgba(10,15,28,.85);
  border-radius:999px;
  padding:3px 8px;
  font-size:11px;
  font-weight:800;
}
.badge.danger{
  background:rgba(239,68,68,.9);
  border-color:rgba(239,68,68,.3);
}
.chip{
  border-radius:999px;
  padding:3px 8px;
  font-size:11px;
  font-weight:800;
  background:rgba(2,6,23,.85);
  border:1px solid rgba(255,255,255,.14);
}
.chip.new{
  background:linear-gradient(135deg,#ef4444,#f59e0b);
  border:none;
}

.deal-body{
  padding:12px;
  display:flex;
  flex-direction:column;
  gap:6px;
  min-width:0;
}
.deal-meta-top{
  color:var(--muted);
  font-size:12px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.deal-title{
  margin:0;
  font-size:17px;
  line-height:1.25;
  word-break:break-word;
}
.deal-desc{
  margin:0;
  color:var(--muted);
  font-size:13px;
  line-height:1.35;
  word-break:break-word;
}

.price-row{
  display:flex;
  align-items:baseline;
  gap:8px;
  flex-wrap:wrap;
}
.price-new{font-size:22px;font-weight:900}
.price-old{
  color:var(--muted);
  text-decoration:line-through;
  font-size:13px;
}
.save-chip{
  font-size:11px;
  font-weight:800;
  color:#bbf7d0;
  border:1px solid rgba(52,211,153,.25);
  background:rgba(52,211,153,.08);
  border-radius:999px;
  padding:3px 8px;
}

.deal-dates{
  display:grid;
  gap:4px;
}
.date-row{
  border:1px solid rgba(148,163,184,.2);
  background:rgba(148,163,184,.07);
  border-radius:8px;
  padding:4px 8px;
  font-size:12px;
  color:#dbeafe;
  word-break:break-word;
}
.date-row span{
  color:#93c5fd;
  font-weight:700;
}
.date-row.expire{
  border-color:rgba(239,68,68,.25);
  background:rgba(239,68,68,.08);
  color:#fecaca;
}
.date-row.expire span{color:#f87171}

.reactions{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
}
.react-btn{
  border:1px solid var(--line);
  background:#0b1220;
  color:var(--text);
  border-radius:999px;
  padding:5px 10px;
  font-size:12px;
  display:inline-flex;
  align-items:center;
  gap:4px;
  cursor:pointer;
}
.react-btn.static{cursor:default}
.deal-actions{
  margin-top:auto;
  display:flex;
  gap:8px;
  flex-wrap:wrap;
}
.action-btn{
  flex:1 1 160px;
  text-align:center;
}

/* Detail */
.detail-wrap{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:12px;
}
.detail-main{
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
  background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.01));
}
.detail-image-wrap{
  border-bottom:1px solid var(--line);
  background:var(--panel2);
  aspect-ratio:16/9;
}
.detail-image{
  width:100%; height:100%; object-fit:cover;
}
.detail-content{
  padding:12px;
}
.detail-title{
  margin:4px 0 8px;
  font-size:clamp(22px,3vw,30px);
  line-height:1.15;
  word-break:break-word;
}
.detail-desc{
  color:var(--muted);
  line-height:1.5;
  white-space:pre-wrap;
  word-break:break-word;
}
.detail-actions{
  display:flex;
  gap:8px;
  margin-top:10px;
  flex-wrap:wrap;
}
.detail-side{min-width:0}
.kv{
  display:flex;
  justify-content:space-between;
  gap:8px;
  padding:8px 0;
  border-bottom:1px dashed rgba(255,255,255,.08);
}
.kv:last-child{border-bottom:none}
.kv span{color:var(--muted);font-size:13px}
.kv b{text-align:right;word-break:break-word}

/* Forms/admin */
.narrow{max-width:520px;margin:0 auto}
.form-grid{
  display:grid;
  gap:10px;
}
.field{
  display:flex;
  flex-direction:column;
  gap:6px;
  min-width:0;
}
.field label{
  font-size:12px;
  color:var(--muted);
  font-weight:700;
}
.field input,.field select,.field textarea{
  width:100%;
  border:1px solid var(--line);
  background:#0b1225;
  color:var(--text);
  border-radius:10px;
  padding:10px;
  outline:none;
  min-width:0;
}
.field textarea{
  min-height:96px;
  resize:vertical;
}
.img-preview{
  width:100%;
  height:140px;
  object-fit:cover;
  border-radius:10px;
  border:1px solid var(--line);
  background:var(--panel2);
}
.row-inline{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  align-items:center;
}

/* flexible grid helpers */
.grid-2{
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:10px;
}
.grid-3{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:10px;
}
.grid-4{
  display:grid;
  grid-template-columns:repeat(4, minmax(0,1fr));
  gap:10px;
}

.admin-split{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:12px;
  align-items:start;
}

/* ✅ LIST KHÔNG BỊ TRÀN: tự cao theo nội dung, không khóa chiều cao */
.stack-list{
  display:flex;
  flex-direction:column;
  gap:8px;
  min-width:0;
  width:100%;
}
.stack-item{
  border:1px solid var(--line);
  background:rgba(255,255,255,.02);
  border-radius:12px;
  padding:8px;
  display:grid;
  grid-template-columns:80px minmax(0,1fr) auto;
  gap:8px;
  align-items:start;
  min-width:0;
}
.stack-item.no-thumb{
  grid-template-columns:minmax(0,1fr) auto;
}
.stack-thumb{
  width:80px;height:64px;object-fit:cover;border-radius:8px;border:1px solid var(--line);
  background:var(--panel2);
}
.stack-main{min-width:0}
.stack-title{
  font-size:13px;
  font-weight:700;
  line-height:1.3;
  word-break:break-word;
}
.stack-meta{
  font-size:12px;
  color:var(--muted);
  line-height:1.35;
  word-break:break-word;
}
.stack-actions{
  display:flex;
  gap:6px;
  flex-wrap:wrap;
  justify-content:flex-end;
}
.mini-search{
  width:min(220px,100%);
  border:1px solid var(--line);
  background:#0b1225;
  color:var(--text);
  border-radius:10px;
  padding:8px 10px;
  outline:none;
}

/* Dashboard */
.stats-cards{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:10px;
}
.stat-card{
  border:1px solid var(--line);
  background:var(--panel2);
  border-radius:12px;
  padding:10px;
}
.stat-card .k{color:var(--muted);font-size:12px}
.stat-card .v{font-weight:900;font-size:22px;margin-top:3px}
.stat-card .m{color:var(--muted);font-size:11px;margin-top:4px}

.chart-panel{
  height:300px;
  display:flex;
  flex-direction:column;
}
#clicksChart{
  width:100% !important;
  height:240px !important;
}

.stats-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:10px;
}
.bar-row{margin-bottom:8px}
.bar-head{
  display:flex;justify-content:space-between;gap:8px;
  font-size:12px;
}
.bar-head span{
  color:var(--text);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.bar-head b{color:#93c5fd}
.bar-track{
  margin-top:4px;
  height:8px;
  border-radius:999px;
  background:#111827;
  border:1px solid var(--line);
  overflow:hidden;
}
.bar-fill{
  height:100%;
  border-radius:999px;
  background:linear-gradient(90deg,#22c55e,#38bdf8);
}

/* Status */
.status{
  display:none;
  border-radius:10px;
  padding:8px 10px;
  font-size:13px;
}
.status.show{display:block}
.status.ok{
  background:rgba(52,211,153,.08);
  border:1px solid rgba(52,211,153,.2);
  color:#bbf7d0;
}
.status.err{
  background:rgba(251,113,133,.08);
  border:1px solid rgba(251,113,133,.2);
  color:#fecdd3;
}

/* Optional / empty price helpers */
.price-note{
  color:var(--muted);
  font-weight:700;
  font-size:13px;
}
.popular-price .empty-price{
  color:var(--muted);
  text-decoration:none;
  font-weight:600;
}
.line-through:empty{display:none}


/* Footer */
.site-footer{
  margin-top:16px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg, rgba(124,58,237,.10), rgba(7,11,22,.5));
}
.footer-inner{
  padding:14px 0 20px;
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:10px;
  flex-wrap:wrap;
}
.footer-title{
  font-weight:800;
  font-size:14px;
}
.footer-sub{
  color:var(--muted);
  font-size:12px;
  margin-top:2px;
}
.footer-meta{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  color:var(--muted);
  font-size:12px;
}

/* Modal */
.modal{
  position:fixed;
  inset:0;
  z-index:120;
  display:grid;
  place-items:center;
  padding:14px;
}
.modal.hidden{display:none}
.modal-backdrop{
  position:absolute;
  inset:0;
  background:rgba(2,6,23,.65);
  backdrop-filter:blur(4px);
}
.modal-card{
  position:relative;
  z-index:1;
  width:min(520px, 100%);
  border:1px solid var(--line2);
  border-radius:16px;
  background:linear-gradient(180deg, rgba(16,23,46,.98), rgba(10,15,28,.98));
  box-shadow:0 18px 50px rgba(0,0,0,.45);
  padding:12px;
}
.modal-card .field input[disabled]{
  opacity:1;
  color:#bfdbfe;
  cursor:not-allowed;
}

/* Responsive */
@media (max-width: 1100px){
  .layout{
    grid-template-columns:1fr;
  }
  .sidebar{
    order:2;
  }
  .content{
    order:1;
  }
  .detail-wrap{
    grid-template-columns:1fr;
  }
  .stats-cards{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
  .admin-split{
    grid-template-columns:1fr;
  }
}
@media (max-width: 820px){
  .toolbar,
  .grid-2,
  .grid-3,
  .grid-4{
    grid-template-columns:1fr;
  }
  .deal-card{
    grid-template-columns:1fr;
  }
  .deal-thumb{
    border-right:none;
    border-bottom:1px solid var(--line);
  }
  .stack-item{
    grid-template-columns:64px minmax(0,1fr);
  }
  .stack-item.no-thumb{
    grid-template-columns:minmax(0,1fr) auto;
  }
  .stack-thumb{
    width:64px;height:64px;
  }
  .stack-actions{
    grid-column:1 / -1;
    justify-content:flex-start;
    margin-top:6px;
  }
  .stats-grid{
    grid-template-columns:1fr;
  }
}
@media (max-width: 560px){
  .topbar-inner{
    align-items:flex-start;
  }
  .top-actions{
    width:100%;
    justify-content:flex-start;
  }
  .modal-card{
    padding:10px;
  }
  .footer-inner{
    flex-direction:column;
    align-items:flex-start;
  }
  .stats-cards{
    grid-template-columns:1fr;
  }
}