/* =========================================
   TIÊN PHONG — style.css (FINAL)
   Dark Luxury Gold/Black — clean, no banding
   Fix: stripe/banding, Zalo box, Windows select,
        floating buttons, backToTop, responsive
   ========================================= */

:root{
  --bg:#0b0f18;

  --panel: rgba(255,255,255,.045);
  --panel2: rgba(255,255,255,.03);
  --line: rgba(255,255,255,.10);

  --text:#e5e7eb;
  --muted:#94a3b8;

  --gold:#d4af37;
  --gold2:#f5d76e;

  --green:#86efac;
  --red:#ef4444;

  --shadow: 0 16px 44px rgba(0,0,0,.45);
  --shadow2: 0 10px 28px rgba(0,0,0,.22);

  --radius:16px;
  --container: 1100px;

  --topbar-bg: rgba(11,15,24,.90);
}

*{box-sizing:border-box}
html,body{height:100%}

body{
  margin:0;
  font-family: system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  color:#e5e7eb;
  background:#0b0f18;
   padding-top: 88px;

}

/* Noise nhẹ để chống sọc màn hình (không cần ảnh) */
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  opacity:.055; /* rất nhẹ */
  background-image:
    repeating-linear-gradient(
      0deg,
      rgba(255,255,255,.03) 0px,
      rgba(255,255,255,.03) 1px,
      transparent 2px,
      transparent 4px
    );
  mix-blend-mode: overlay;
}

/* đảm bảo nội dung nằm trên noise */
body > *{position:relative; z-index:1}

img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.hidden{display:none !important}
.muted{color:var(--muted)}
.small{font-size:12px}
.gold{color:var(--gold2)}

.container{
  max-width: var(--container);
  margin:0 auto;
  padding:0 16px;
}

/* ===== TOPBAR ===== */
/* ===== TOPBAR PIN CỐ ĐỊNH ===== */
.topbar{
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 999;

  background: rgba(11,15,24,.90);
  border-bottom: 1px solid rgba(255,255,255,.06);
  backdrop-filter: blur(8px);

  transition: background .25s ease, box-shadow .25s ease;
}

/* khi cuộn xuống */
.topbar.is-scrolled{
  background: rgba(8,12,20,.96);
  box-shadow: 0 14px 34px rgba(0,0,0,.45);
  border-bottom-color: rgba(212,175,55,.22);
}

/* ===== TOPBAR CÂN ĐỐI ===== */
.topbar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:12px 0;
}

/* giới hạn chiều rộng logo + chữ để không đẩy nút */
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  max-width: 70%;
}

/* nút bên phải gọn gàng */
.topbar__right{
  display:flex;
  align-items:center;
  justify-content:flex-end;
}


.brand{
  display:flex;
  align-items:center;
  gap:12px;
  min-width: 220px;
}
.logo{
  width:64px;
  height:64px;
  border-radius:50%;
  border:3px solid #d4af37;
  padding:0;
  background:#000;
}
.brand__name{
  font-weight:900;
  letter-spacing:.8px;
  color: var(--gold2);
}
.brand__tag{
  font-size:12px;
  color: var(--muted);
}
.topbar__right{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  justify-content:flex-end;
}

/* ===== BUTTONS ===== */
.btn{
  border:1px solid var(--line);
  background: rgba(255,255,255,.06);
  color: var(--text);
  padding:10px 12px;
  border-radius:12px;
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  transition: transform .06s ease, background .2s ease, border-color .2s ease;
  user-select:none;
  white-space:nowrap;
}
.btn:hover{background: rgba(255,255,255,.10)}
.btn:active{transform: translateY(1px)}

.btn--primary{
  border-color: rgba(212,175,55,.55);
  background: rgba(212,175,55,.16);
  font-weight:900;
}
.btn--primary:hover{background: rgba(212,175,55,.24)}

.btn--ghost{
  border-color: rgba(245,215,110,.25);
  background: rgba(245,215,110,.10);
}

/* ===== HERO ===== */
.hero{
  padding:18px 0 10px;
}
.hero h1{
  margin:0 0 6px;
  font-size:34px;
  line-height:1.15;
}
.hero p{margin:0;color:var(--muted)}

.searchrow{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin:12px 0 10px;
  align-items:center;
}
.searchrow input{
  flex:1;
  min-width:240px;
  padding:12px 12px;
  border-radius:12px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.06);
  color: var(--text);
  outline:none;
}
.searchrow input::placeholder{color: rgba(148,163,184,.85)}
.searchrow input:focus{border-color: rgba(212,175,55,.55)}

.filters{
  display:grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap:10px;
}

/* ===== SELECT (Windows-safe) ===== */
select{
  width:100%;
  padding:11px 12px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#0f1420;
  color: var(--text);
  outline:none;
  appearance: none;
  -webkit-appearance:none;
  -moz-appearance:none;
}
select:focus{border-color: rgba(212,175,55,.55)}
select option{background:#0f1420;color:var(--text)}
select option:checked{background:#1b2338;color:var(--gold2)}

.toolrow{
  margin-top:10px;
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
}
.toggle{
  display:flex;
  gap:8px;
  align-items:center;
  color:var(--muted);
  font-size:13px;
}
.toggle input{transform: translateY(1px)}
.hint{
  margin-top:10px;
  font-size:13px;
  color:var(--muted);
}

/* ===== TRUST ===== */
.trust{padding:10px 0 2px}
.trust__grid{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:10px;
}
.trust__card{
  padding:14px;
  border-radius:var(--radius);
  border:1px solid rgba(255,255,255,.08);
  background: var(--panel);
  box-shadow: var(--shadow2);
}
.trust__title{
  font-weight:900;
  color: var(--gold2);
  margin-bottom:6px;
}

/* ===== STATS ===== */
.statbar{
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap:10px;
  margin:10px 0 14px;
  align-items:stretch;
}
.stat{
  padding:12px;
  border-radius:var(--radius);
  border:1px solid rgba(255,255,255,.08);
  background: var(--panel);
  box-shadow: var(--shadow2);

  display:flex;
  flex-direction:column;
  gap:8px;
  justify-content:center;
  min-height:96px;
}
.stat__num{font-weight:900;font-size:18px;color:var(--gold2)}
.stat__label{font-size:12px;color:var(--muted)}

.stat--zalo{cursor:pointer}
.stat--zalo:hover{transform: translateY(-1px)}

/* nút zaloOneTap nếu bạn có dùng */
#zaloOneTap{
  width: fit-content;
  max-width:100%;
}

/* ===== LIST ===== */
.list{
  display:grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap:12px;
  padding:10px 0 18px;
}

.item{
  width:100%;
  padding:14px;
  border-radius:var(--radius);
  border:1px solid rgba(255,255,255,.08);
  background: var(--panel);
  box-shadow: var(--shadow2);
  overflow:hidden;
}
.item:hover{border-color: rgba(212,175,55,.25)}

.item__top{
  display:flex;
  justify-content:space-between;
  gap:10px;
  align-items:flex-start;
}
.plate{
  display:inline-block;
  padding:8px 20px;

background: linear-gradient(
  145deg,
  #f5f3ed 0%,
  #ece8df 50%,
  #f5f3ed 100%
);
 color:#111;

  font-size:26px;
  font-weight:900;
  letter-spacing:3px;

  border-radius:12px;
  border:2px solid #111;

  box-shadow:
    inset 0 0 0 3px rgba(212,175,55,.9),  
    inset 0 0 0 6px #ffffff,               
    0 14px 35px rgba(0,0,0,.55);           

  transition: all .25s ease;
}

.item:hover .plate{
  transform: translateY(-4px) scale(1.06);

  outline:3px solid #f5d76e;

  box-shadow:
    0 18px 45px rgba(0,0,0,.65),
    0 0 20px rgba(212,175,55,.6);
}
.tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:6px;
  color: var(--muted);
  font-size:12px;
}

.badge{
  padding:6px 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:900;
  white-space:nowrap;
  border:1px solid transparent;
}

/* sold/available */
.item.sold{opacity:.58;filter: grayscale(.2)}
.badge--available{
  background: rgba(212,175,55,.12);
  border-color: rgba(212,175,55,.55);
  color: var(--text);
}
.badge--sold{
  background: rgba(239,68,68,.16);
  border-color: rgba(239,68,68,.45);
  color:#fff;
}

.item__bottom{
  margin-top:10px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
}
.price{font-weight:900;color:var(--green)}
.actions{display:flex;gap:10px;flex-wrap:wrap}

/* ===== EMPTY / CARD ===== */
.empty{
  padding:16px;
  border-radius:var(--radius);
  border:1px dashed rgba(255,255,255,.18);
  color: var(--muted);
  margin-bottom:18px;
}
.card{
  padding:16px;
  border-radius:var(--radius);
  border:1px solid rgba(255,255,255,.08);
  background: var(--panel);
  box-shadow: var(--shadow2);
}

/* ===== FAQ ===== */
.faq{padding:10px 0 14px}
details{padding:10px 0;border-top:1px solid rgba(255,255,255,.08)}
details:first-of-type{border-top:none}
summary{cursor:pointer;font-weight:800;color:var(--gold2)}
details p{margin:10px 0 0;color:var(--muted);line-height:1.6}

/* ===== CONTACT ===== */
.contact{padding:10px 0 40px}
.contact__actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}

/* ===== FLOATING BUTTONS ===== */
.floating{
  position:fixed;
  right:14px;
  bottom:14px;
  display:flex;
  flex-direction:column;
  gap:10px;
  z-index:999;
}
.fab{
  width:72px;
  height:46px;
  padding:0;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.10);
  box-shadow: var(--shadow);
  font-weight:900;
  display:flex;
  align-items:center;
  justify-content:center;

  /* chống bị giãn như card */
  flex: 0 0 auto;
  min-width: 0;
  max-width: none;
}
.fab--zalo{border-color: rgba(59,130,246,.45); background: rgba(59,130,246,.20)}
.fab--call{border-color: rgba(34,197,94,.45); background: rgba(34,197,94,.20)}

/* ===== BACK TO TOP ===== */
#backToTop{
  position:fixed;
  right:14px;
  bottom:140px;
  width:44px;
  height:44px;
  border-radius:50%;
  border:1px solid rgba(212,175,55,.55);
  background: rgba(11,15,24,.85);
  color: var(--gold2);
  font-size:20px;
  font-weight:900;
  cursor:pointer;
  display:none;
  z-index:999;
  box-shadow: 0 10px 24px rgba(0,0,0,.45);

  align-items:center;
  justify-content:center;
}
#backToTop:hover{background: rgba(212,175,55,.16)}

/* ===== MODAL ===== */
.modal{position:fixed;inset:0;z-index:2000}
.modal__backdrop{position:absolute;inset:0;background:rgba(0,0,0,.6)}
.modal__card{
  position:relative;
  margin: 64px auto 0;
  max-width:640px;
  width: calc(100% - 24px);
  padding:16px;
  border-radius:20px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(11,15,24,.95);
  box-shadow: var(--shadow);
}
.modal__x{
  position:absolute;
  right:12px;
  top:12px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.08);
  color: var(--text);
  border-radius: 12px;
  padding: 8px 10px;
  cursor:pointer;
}
.modal__title{font-size:26px;font-weight:900;color:var(--gold2)}
.modal__meta{margin-top:6px;color:var(--muted)}
.modal__badges{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.modal__price{margin-top:10px;font-size:20px;font-weight:900;color:var(--green)}
.modal__desc{margin-top:10px;line-height:1.6;color:var(--text)}
.modal__actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}

/* ===== RESPONSIVE ===== */
@media (max-width: 920px){
  .filters{grid-template-columns: repeat(2, minmax(0,1fr))}
  .list{grid-template-columns: 1fr}
  .statbar{grid-template-columns: 1fr}
  .trust__grid{grid-template-columns: 1fr}
}

@media (max-width: 767px){
  .topbar__inner{gap:10px}
  .brand{min-width:unset}
  .logo{width:56px;height:56px}

  .hero h1{font-size:28px}

  .btn{padding:10px 12px}
  .actions{gap:8px}
}
/* ===== MOBILE: HIỆN TAGLINE GỌN GÀNG ===== */
@media (max-width: 767px){
  .brand{
    align-items:flex-start;
  }

  .brand__tag{
    display:block;
    font-size:11px;
    line-height:1.3;
    color: var(--muted);
    max-width: 220px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}

@media (max-width: 767px){
  .brand__tag{
    content: "Biển số đẹp · Tư vấn Zalo";
  }
}
.hidden {
    display: none;
}