:root{
  /* NOTE: style.css is inside assets/css/ → go back to project root */
  --bg-url: url('../../imgs/bg1.jpeg');
  --bg-fit: cover;
  /* Background dim overlay (0..1) — higher = darker */
  --bg-overlay-top: .22;
  --bg-overlay-bottom: .42;

  /* Glass controls */
  --glass-blur: 16px;
  --glass-sat: 145%;
  /* Glass alpha presets (can be updated by JS) */
  --glass-site-a1: .70;
  --glass-site-a2: .38;
  --glass-panel-a1: .62;
  --glass-panel-a2: .30;
  --glass-item-a1: .45;
  --glass-item-a2: .24;
  --glass-item-h1: .55;
  --glass-item-h2: .32;

  /* Sunset gold theme (default) */
  --surface: rgba(255, 242, 214, .32);
  --surface-2: rgba(255, 242, 214, .24);
  --stroke: rgba(255, 255, 255, .30);
  --shadow: 0 20px 70px rgba(0,0,0,.40);

  --text: #1a1a1a;
  --muted: rgba(26,26,26,.72);

  --accent: #D89A00; /* Mai vang Tet (deep golden) */
  --accent-rgb: 216,154,0;
  --accent-rgb-dark: 176,110,0;
  --accent-2: #FFCE3A; /* highlight gold */

  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;

  --maxw: 1220px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  position:relative;
  color:var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  overflow-x:hidden;
}

.bg{
  position:fixed;
  inset:0;
  z-index:0;
  background-image:
    linear-gradient(180deg, rgba(0,0,0,var(--bg-overlay-top)), rgba(0,0,0,var(--bg-overlay-bottom))),
    var(--bg-url);
  background-size: var(--bg-fit);
  background-position:center;
  background-repeat:no-repeat;
}

/* Soft vignette */
.bg::after{
  content:"";
  position:absolute;
  inset:-2px;
  background:
    radial-gradient(1200px 680px at 50% 15%, rgba(255,216,130,.14), transparent 60%),
    radial-gradient(1000px 520px at 50% 90%, rgba(0,0,0,.10), transparent 55%),
    radial-gradient(900px 600px at 15% 50%, rgba(0,0,0,.14), transparent 50%),
    radial-gradient(900px 600px at 85% 50%, rgba(0,0,0,.14), transparent 50%);
  pointer-events:none;
}


/* Ensure content stays above the fixed background layer */
.top, .layout, .footer{position:relative; z-index:1;}
.top{
  padding: 36px 18px 18px;
}

.site-card{
  width:min(var(--maxw), calc(100% - 16px));
  margin:0 auto;
  background: linear-gradient(135deg, rgba(255, 246, 224, var(--glass-site-a1)), rgba(255, 232, 180, var(--glass-site-a2)));
  border: 1px solid var(--stroke);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
}

.site-meta{
  padding: 22px 22px;
}

.kicker{
  margin:0 0 10px;
  letter-spacing:.14em;
  font-weight:700;
  font-size: 12px;
  color: rgba(26,26,26,.7);
}

.site-title{
  margin:0;
  font-size: clamp(22px, 3vw, 34px);
  line-height:1.15;
  color: var(--accent);
}

.site-subtitle{
  margin:10px 0 0;
  font-size: 14px;
  color: var(--muted);
}

.toolbar{
  margin-top: 14px;
  display:flex;
  gap: 12px;
  align-items:center;
  flex-wrap:wrap;
}

.theme-picker{
  display:flex;
  align-items:center;
  gap:8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,.55);
  border: 1px solid rgba(0,0,0,.06);
}

.theme-label{
  font-size: 13px;
  color: rgba(26,26,26,.7);
}

.theme-btn{
  width: 34px;
  height: 34px;
  border-radius: 999px;
  border: 1px solid rgba(0,0,0,.12);
  background: rgba(255,255,255,.72);
  cursor:pointer;
  font-weight: 800;
  color: rgba(26,26,26,.75);
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.theme-btn:hover{transform: translateY(-1px)}
.theme-btn.is-active{
  background: rgba(255,255,255,.92);
  box-shadow: 0 10px 24px rgba(0,0,0,.18);
  border-color: rgba(0,0,0,.18);
  color: var(--accent);
}

.layout{
  width:min(var(--maxw), calc(100% - 36px));
  margin: 18px auto 0;
  display:grid;
  grid-template-columns: 320px 1fr 320px;
  gap: 18px;
  align-items: start;
}

.panel{
  background: linear-gradient(135deg, rgba(255, 246, 224, var(--glass-panel-a1)), rgba(255, 232, 180, var(--glass-panel-a2)));
  border: 1px solid var(--stroke);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  overflow:hidden;
  min-height: 520px;
}

.panel-head{
  padding: 18px 18px 12px;
}

.panel-title{
  margin: 4px 0 0;
  font-size: 22px;
  color: var(--accent);
}

.panel-desc{
  margin: 8px 0 0;
  font-size: 13px;
  color: rgba(26,26,26,.66);
}

.panel-body{
  padding: 8px 12px 18px;
}

.menu{list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap: 8px;}
.menu li{display:flex;}
.menu a{
  width:100%;
  padding: 12px 12px;
  border-radius: 14px;
  text-decoration:none;
  color: rgba(26,26,26,.86);
  background: linear-gradient(135deg, rgba(255,255,255,var(--glass-item-a1)), rgba(255,255,255,var(--glass-item-a2)));
  border: 1px solid rgba(255,255,255,.20);
  backdrop-filter: blur(calc(var(--glass-blur) - 6px)) saturate(var(--glass-sat));
  -webkit-backdrop-filter: blur(calc(var(--glass-blur) - 6px)) saturate(var(--glass-sat));
  box-shadow: 0 10px 24px rgba(0,0,0,.18);
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
  display:flex;
  gap: 10px;
  align-items:center;
    font-weight: 800;   /* 700/800 tuỳ bạn */
}
.menu a:hover{
  transform: translateY(-1px);
  background: linear-gradient(135deg, rgba(255,255,255,var(--glass-item-h1)), rgba(255,255,255,var(--glass-item-h2)));
  border-color: rgba(255,255,255,.30);
}

.badge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width: 26px;
  height: 26px;
  padding: 0 8px;
  border-radius: 999px;
  background: rgba(var(--accent-rgb),.25);
  color: rgba(26,26,26,.8);
  font-weight: 800;
  font-size: 12px;
  border: 1px solid rgba(var(--accent-rgb),.35);
}

.center{min-height: 520px;}
.hero{
  height: 100%;
  display:flex;
  align-items: center;
  justify-content:center;
  padding: 10px;
}
.hero-card{
  width:min(520px, 100%);
  padding: 18px 18px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(30, 22, 12, .42), rgba(10, 10, 10, .20));
  border: 1px solid rgba(255,255,255,.22);
  box-shadow: 0 18px 55px rgba(0,0,0,.32);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  color: rgba(255,255,255,.92);
}
.hero-title{margin:0; font-size: 18px; letter-spacing:.01em;}
.hero-text{margin: 10px 0 0; color: rgba(255,255,255,.82); font-size: 14px; line-height:1.5;}
.hero-actions{margin-top: 14px; display:flex; gap: 10px; flex-wrap:wrap;}

.footer{
  padding: 18px 18px 30px;
}
.footer-inner{
  width:min(var(--maxw), calc(100% - 16px));
  margin: 0 auto;
  display:flex;
  align-items:center;
  justify-content:center;
  gap: 10px;
  flex-wrap:wrap;
  color: rgba(255,255,255,.78);
  font-size: 13px;
}
.footer-link{color: rgba(255,255,255,.92); text-decoration: underline; text-underline-offset: 4px;}
.dot{opacity:.55}

/* Buttons */
.btn{
  appearance:none;
  border: 1px solid rgba(0,0,0,.12);
  background: rgba(255,255,255,.80);
  color: rgba(26,26,26,.86);
  padding: 10px 12px;
  border-radius: 14px;
  cursor:pointer;
  font-weight: 800;
  font-size: 14px;
  text-decoration:none;
  display:inline-flex;
  align-items:center;
  gap: 8px;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover{transform: translateY(-1px); box-shadow: 0 12px 30px rgba(0,0,0,.18)}
.btn:active{transform: translateY(0px)}
.btn.primary{
  background: linear-gradient(180deg, rgba(var(--accent-rgb),.95), rgba(var(--accent-rgb-dark),.95));
  border-color: rgba(255,255,255,.25);
  color: rgba(26,26,26,.90);
}
.btn.ghost{
  background: rgba(255,255,255,.55);
}
.btn.danger{
  background: rgba(255,59,48,.12);
  border-color: rgba(255,59,48,.28);
  color: rgba(92,0,0,.9);
}

.icon-btn{
  width: 42px;
  height: 42px;
  border-radius: 14px;
  border: 1px solid rgba(0,0,0,.12);
  background: rgba(255,255,255,.8);
  cursor:pointer;
  font-size: 18px;
  font-weight: 900;
}

/* Modal */
.modal[hidden]{display:none}
.modal{
  position: fixed;
  inset: 0;
  z-index: 50;
}
.modal-backdrop{
  position:absolute;
  inset:0;
  background: rgba(0,0,0,.62);
}
.modal-card{
  position:relative;
  width: min(980px, calc(100% - 28px));
  max-height: calc(100% - 30px);
  margin: 15px auto;
  background: rgba(250, 242, 226, .96);
  color: #111;
  color-scheme: light;
  border: 1px solid rgba(255,255,255,.55);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 70px rgba(0,0,0,.55);
  overflow:hidden;
  display:flex;
  flex-direction:column;
}

.modal-card{
  color: #111;
  color-scheme: light;
}
.modal-card input, .modal-card textarea, .modal-card select{
  color: #111;
}
.modal-card input::placeholder, .modal-card textarea::placeholder{
  color: rgba(0,0,0,.45);
}
.modal-header{
  padding: 16px 18px;
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap: 16px;
  border-bottom: 1px solid rgba(0,0,0,.08);
}
.modal-title{margin:0; color: var(--accent); font-size: 18px;}
.modal-subtitle{margin: 6px 0 0; color: rgba(26,26,26,.68); font-size: 13px;}
.modal-body{
  padding: 14px 18px 16px;
  overflow:auto;
}
.modal-footer{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
  padding: 12px 18px;
  border-top: 1px solid rgba(0,0,0,.08);
}
.modal-footer .right{display:flex; gap: 10px; flex-wrap:wrap; justify-content:flex-end;}
.status{font-size: 13px; color: rgba(26,26,26,.7);}

.tabs{display:flex; gap: 10px; flex-wrap:wrap; margin-bottom: 12px;}
.tab{
  border: 1px solid rgba(0,0,0,.10);
  background: rgba(255,255,255,.7);
  border-radius: 999px;
  padding: 9px 12px;
  cursor:pointer;
  font-weight: 900;
  color: rgba(26,26,26,.75);
}
.tab.is-active{color: var(--accent); border-color: rgba(0,0,0,.16); background: rgba(255,255,255,.92)}

.tabpane{display:none}
.tabpane.is-active{display:block}

.form-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.field{display:flex; flex-direction:column; gap: 6px;}
.label{font-size: 13px; color: rgba(26,26,26,.72); font-weight: 800;}
input:not([type="range"]), textarea, select{
  width:100%;
  border-radius: 14px;
  border: 1px solid rgba(0,0,0,.12);
  padding: 10px 12px;
  font: inherit;
  color: #111;
  background: rgba(255,255,255,.86);
  color-scheme: light;
  outline:none;
}
input:focus, textarea:focus{border-color: rgba(var(--accent-rgb),.72); box-shadow: 0 0 0 4px rgba(var(--accent-rgb),.18)}

.list-editor{margin-top: 14px;}
.list-editor-head{display:flex; justify-content:space-between; align-items:center; gap: 12px; flex-wrap:wrap;}
.list{margin-top: 10px; display:flex; flex-direction:column; gap: 10px;}

.item{
  display:grid;
  grid-template-columns: 34px 1fr 1fr 140px;
  gap: 10px;
  align-items:center;
  padding: 10px;
  border-radius: 16px;
  border: 1px solid rgba(0,0,0,.08);
  background: rgba(255,255,255,.62);
}
.item .idx{
  width: 34px; height: 34px; border-radius: 999px;
  background: rgba(var(--accent-rgb),.18);
  border: 1px solid rgba(var(--accent-rgb),.35);
  display:flex; align-items:center; justify-content:center;
  font-weight: 1000;
}
.item .actions{display:flex; gap: 6px; justify-content:flex-end;}
.small-btn{
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,.12);
  background: rgba(255,255,255,.82);
  padding: 8px 10px;
  cursor:pointer;
  font-weight: 900;
}
.small-btn:hover{transform: translateY(-1px)}


.hint{font-size:12px; color: rgba(26,26,26,.66); margin-top:2px;}

input[type="range"]{
  width:100%;
  height: 22px;
  padding: 0;
  background: transparent;
  border: none;
  accent-color: var(--accent);
}

select{
  appearance:none;
  background-image: linear-gradient(45deg, transparent 50%, rgba(0,0,0,.55) 50%),
    linear-gradient(135deg, rgba(0,0,0,.55) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 12px) 50%;
  background-size: 6px 6px, 6px 6px;
  background-repeat:no-repeat;
}
.helper{margin: 6px 0 12px; color: rgba(26,26,26,.72)}

.theme-editor{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.theme-card{
  border: 1px solid rgba(0,0,0,.08);
  border-radius: 18px;
  background: rgba(255,255,255,.62);
  padding: 12px;
}
.theme-card h4{margin:0 0 10px; color: rgba(26,26,26,.86)}

.backup{display:grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px;}
.backup-card{
  border: 1px solid rgba(0,0,0,.08);
  border-radius: 18px;
  background: rgba(255,255,255,.62);
  padding: 12px;
}
.backup-card.danger{border-color: rgba(255,59,48,.22); background: rgba(255,59,48,.06)}
.backup-card h4{margin:0 0 6px; color: rgba(26,26,26,.86)}
.backup-card p{margin:0 0 10px; color: rgba(26,26,26,.68)}

/* Responsive */
@media (max-width: 1100px){
  .layout{grid-template-columns: 1fr;}
  .panel{min-height: unset;}
  .center{min-height: unset;}
  .hero{justify-content:stretch}
  .hero-card{width:100%}
  .form-grid{grid-template-columns: 1fr;}
  .theme-editor{grid-template-columns: 1fr;}
  .backup{grid-template-columns: 1fr;}
  .item{grid-template-columns: 34px 1fr; grid-auto-rows:auto;}
  .item .actions{grid-column: 1 / -1; justify-content:flex-start;}
}

@media (prefers-reduced-motion: reduce){
  *{transition:none !important; scroll-behavior:auto !important}
}

/* Admin page layout */
.admin-wrap{
  width:min(var(--maxw), calc(100% - 36px));
  margin: 0 auto 60px;
}
.admin-page .admin-card{
  margin: 0 auto;
  max-height: none;
}

/* Login gate */
.login{
  position:fixed;
  inset:0;
  z-index: 80;
  display:grid;
  place-items:center;
}
.login-backdrop{
  position:absolute;
  inset:0;
  background: rgba(0,0,0,.62);
}
.login-card{
  position:relative;
  width: min(520px, calc(100% - 28px));
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(255, 246, 224, .92), rgba(255, 232, 180, .78));
  border: 1px solid rgba(255,255,255,.55);
  box-shadow: 0 22px 80px rgba(0,0,0,.55);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  padding: 16px 18px 18px;
  color: #111;
  color-scheme: light;
}
.login-card h3{margin:0; color: var(--accent)}
.login-sub{margin: 8px 0 12px; color: rgba(26,26,26,.72)}
.login-actions{margin-top: 12px; display:flex; justify-content:flex-end;}
.login-hint{margin: 12px 0 0; font-size: 12px; color: rgba(26,26,26,.68)}