/* ==========================================================
   PALISADE — SÀN GỖ CAO CẤP SIÊU CHỊU NƯỚC
   Style chính. Tông: tím hoàng gia + vàng gold.
   ========================================================== */

:root{
  --tim-dam:#1b0b33;
  --tim:#2d1155;
  --tim-nhat:#43207c;
  --gold:#d9ac4e;
  --gold-sang:#f3d489;
  --kem:#f7f2ea;
  --trang:#ffffff;
  --xam-chu:#b9aecd;
  --vien:rgba(217,172,78,.28);
  --bong:0 18px 45px rgba(10,4,25,.35);
  --radius:16px;
  --max:1180px;
  --font:"Be Vietnam Pro","Segoe UI",system-ui,-apple-system,sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--kem);
  color:#241a33;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}

/* ---------- Nút ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 26px;border-radius:999px;font-weight:600;font-size:15px;
  border:1px solid transparent;cursor:pointer;transition:.25s;white-space:nowrap;
  font-family:inherit;
}
.btn-gold{background:linear-gradient(135deg,var(--gold),var(--gold-sang));color:#2a1405;box-shadow:0 8px 22px rgba(217,172,78,.35)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(217,172,78,.45)}
.btn-vien{border-color:var(--vien);color:var(--gold-sang)}
.btn-vien:hover{background:rgba(217,172,78,.12)}
.btn-tim{background:var(--tim);color:#fff}
.btn-tim:hover{background:var(--tim-nhat)}

/* ---------- Header ---------- */
header{
  position:sticky;top:0;z-index:50;
  background:rgba(27,11,51,.94);backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(217,172,78,.18);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:18px;position:relative}
.logo{display:flex;align-items:center;gap:11px;color:#fff}
.logo img{height:44px;width:44px;object-fit:cover;border-radius:50%}
.logo b{font-size:19px;letter-spacing:3px;color:var(--gold-sang);font-weight:700;display:block;line-height:1.1}
.logo span{font-size:10px;letter-spacing:2.6px;color:var(--xam-chu);text-transform:uppercase}
.menu{display:flex;gap:28px;align-items:center}
.menu a{color:#d9d2e6;font-size:15px;font-weight:500;transition:.2s;position:relative}
.menu a:hover{color:var(--gold-sang)}
.menu a::after{content:"";position:absolute;left:0;bottom:-6px;height:2px;width:0;background:var(--gold);transition:.25s}
.menu a:hover::after{width:100%}
.nav .btn{padding:10px 20px;font-size:14px}
.burger{display:none;background:none;border:0;color:var(--gold-sang);font-size:26px;cursor:pointer;line-height:1}

/* ---------- Hero ---------- */
.hero{
  position:relative;background:var(--tim-dam);color:#fff;overflow:hidden;
  padding:62px 0 70px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 78% 20%,rgba(90,40,160,.55),transparent 58%),
             radial-gradient(circle at 8% 82%,rgba(217,172,78,.16),transparent 52%);
}
.hero .wrap{position:relative;display:grid;grid-template-columns:.92fr 1.48fr;gap:34px;align-items:center}
.tag{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:2.4px;
  text-transform:uppercase;color:var(--gold-sang);border:1px solid var(--vien);
  padding:7px 16px;border-radius:999px;margin-bottom:20px;font-weight:600;
}
.hero h1{font-size:clamp(29px,3.6vw,43px);line-height:1.18;font-weight:800;letter-spacing:-.5px}
.hero h1 em{font-style:normal;color:var(--gold-sang)}
.hero p.sub{color:#cbc0dd;font-size:17px;margin:18px 0 28px;max-width:520px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:30px}
.hero-usp{display:flex;gap:26px;flex-wrap:wrap;padding-top:22px;border-top:1px solid rgba(255,255,255,.1)}
.hero-usp div{font-size:13.5px;color:#cbc0dd}
.hero-usp b{display:block;color:var(--gold-sang);font-size:21px;font-weight:800}
.hero-anh{
  position:relative;border-radius:22px;
  border:2px solid rgba(217,172,78,.5);
  box-shadow:0 28px 70px rgba(8,3,20,.6), 0 0 90px rgba(217,172,78,.22);
  transition:.45s cubic-bezier(.2,.8,.3,1);
}
/* Quầng sáng vàng phía sau ảnh cho nổi khối */
.hero-anh::before{
  content:"";position:absolute;inset:-38px;z-index:-1;border-radius:40px;
  background:radial-gradient(ellipse at center,rgba(217,172,78,.4),transparent 70%);
  filter:blur(34px);
}
.hero-anh:hover{transform:translateY(-6px);box-shadow:0 34px 80px rgba(8,3,20,.68), 0 0 110px rgba(217,172,78,.3)}
.hero-anh img{width:100%;height:auto;display:block;border-radius:20px}

/* ---------- Thanh cam kết ---------- */
.trust{background:var(--tim);border-top:1px solid rgba(217,172,78,.2)}
.trust .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:2px}
.trust-i{padding:26px 16px;text-align:center;color:#fff}
.trust-i .ico{font-size:26px;margin-bottom:6px}
.trust-i b{display:block;color:var(--gold-sang);font-size:15px;letter-spacing:.4px}
.trust-i span{font-size:13px;color:var(--xam-chu)}

/* ---------- Section chung ---------- */
section{padding:74px 0}
.sec-head{text-align:center;max-width:660px;margin:0 auto 42px}
.sec-head .tag{color:#7a3fbf;border-color:rgba(122,63,191,.3)}
.sec-head h2{font-size:clamp(26px,3.4vw,38px);font-weight:800;color:var(--tim);line-height:1.25}
.sec-head p{color:#6b6080;margin-top:12px;font-size:16px}

/* ---------- Bộ lọc ---------- */
.loc{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:34px}
.loc button{
  padding:9px 20px;border-radius:999px;border:1px solid #dcd3e6;background:#fff;
  color:#5a4d70;font-size:14px;font-weight:600;cursor:pointer;transition:.2s;font-family:inherit;
}
.loc button:hover{border-color:var(--tim-nhat);color:var(--tim-nhat)}
.loc button.on{background:var(--tim);border-color:var(--tim);color:var(--gold-sang)}

/* ---------- Lưới sản phẩm ---------- */
.luoi{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card{
  background:#fff;border-radius:var(--radius);overflow:hidden;cursor:pointer;
  border:1px solid #ece5f3;transition:.28s;display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-6px);box-shadow:0 20px 40px rgba(45,17,85,.14);border-color:var(--vien)}
.card-anh{position:relative;aspect-ratio:3/4;background:#efe9f5;overflow:hidden}
.card-anh img{width:100%;height:100%;object-fit:cover;transition:.5s}
.card:hover .card-anh img{transform:scale(1.05)}
.card-ma{display:flex;align-items:center;gap:7px;margin-bottom:7px;flex-wrap:wrap}
.nhan{
  background:linear-gradient(135deg,var(--gold),var(--gold-sang));
  color:#2a1405;font-size:10.5px;font-weight:800;letter-spacing:.6px;padding:3px 9px;border-radius:999px;
}
.ma-sp{
  background:var(--tim);color:var(--gold-sang);
  font-size:11.5px;font-weight:700;letter-spacing:1px;padding:3px 10px;border-radius:5px;
}
.card-body{padding:14px 16px 18px;flex:1;display:flex;flex-direction:column}
.card-body h3{font-size:16px;font-weight:700;color:var(--tim);line-height:1.35}
.card-body p{font-size:13.5px;color:#7b7090;margin:7px 0 13px;flex:1}
.card-body .xem{font-size:13.5px;font-weight:700;color:var(--tim-nhat);display:flex;align-items:center;gap:5px}

/* ---------- Vì sao chọn ---------- */
.vi-sao{background:var(--tim-dam);color:#fff}
.vi-sao .sec-head h2{color:#fff}
.vi-sao .sec-head p{color:#bdb2d0}
.vi-sao .sec-head .tag{color:var(--gold-sang);border-color:var(--vien)}
.ly-do{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.ly-do-i{
  background:rgba(255,255,255,.045);border:1px solid rgba(217,172,78,.18);
  border-radius:var(--radius);padding:26px 22px;transition:.25s;
}
.ly-do-i:hover{background:rgba(217,172,78,.09);transform:translateY(-4px)}
.ly-do-i .ico{font-size:28px;margin-bottom:12px}
.ly-do-i h3{color:var(--gold-sang);font-size:17px;margin-bottom:8px;font-weight:700}
.ly-do-i p{color:#c3b8d6;font-size:14.5px}

/* ---------- Quy trình ---------- */
.buoc{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:s}
.buoc-i{
  background:#fff;border:1px solid #ece5f3;border-radius:var(--radius);
  padding:30px 22px 26px;position:relative;transition:.28s;overflow:hidden;
}
.buoc-i::after{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--gold),var(--gold-sang));
  transform:scaleX(0);transform-origin:left;transition:.35s;
}
.buoc-i:hover{border-color:var(--vien);box-shadow:0 16px 34px rgba(45,17,85,.12);transform:translateY(-4px)}
.buoc-i:hover::after{transform:scaleX(1)}
.buoc-i::before{
  counter-increment:s;content:"0" counter(s);
  position:absolute;top:18px;right:20px;
  font-size:40px;font-weight:800;line-height:1;letter-spacing:-1px;
  background:linear-gradient(135deg,var(--tim-nhat),var(--gold));
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:var(--tim-nhat);
  transition:.28s;
}
.buoc-i:hover::before{transform:scale(1.08)}
.buoc-i h3{font-size:16.5px;color:var(--tim);margin-bottom:7px;font-weight:700;padding-right:52px}
.buoc-i p{font-size:14px;color:#7b7090}

/* ---------- Liên hệ ---------- */
.lien-he{background:linear-gradient(135deg,var(--tim),var(--tim-nhat));color:#fff}
.lh-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.lh-grid h2{font-size:clamp(26px,3.2vw,36px);font-weight:800;line-height:1.25;margin-bottom:14px}
.lh-grid h2 em{font-style:normal;color:var(--gold-sang)}
.lh-grid > div > p{color:#cfc4e0;margin-bottom:24px}
.lh-list{display:flex;flex-direction:column;gap:14px}
.lh-list a,.lh-list div.lh-i{display:flex;gap:13px;align-items:flex-start;color:#e6dff1;font-size:15px}
.lh-list .ico{
  width:40px;height:40px;flex-shrink:0;border-radius:11px;background:rgba(217,172,78,.16);
  display:grid;place-items:center;font-size:18px;border:1px solid var(--vien)
}
.lh-list b{display:block;color:var(--gold-sang);font-size:15.5px}
.form{background:rgba(255,255,255,.06);border:1px solid var(--vien);border-radius:20px;padding:28px}
.form h3{color:var(--gold-sang);font-size:19px;margin-bottom:6px}
.form > p{font-size:13.5px;color:#c3b8d6;margin-bottom:18px}
.form label{display:block;font-size:13px;color:#cfc4e0;margin-bottom:6px;font-weight:600}
.form input,.form select,.form textarea{
  width:100%;padding:12px 14px;border-radius:10px;border:1px solid rgba(255,255,255,.16);
  background:rgba(27,11,51,.45);color:#fff;font-size:14.5px;font-family:inherit;margin-bottom:14px;
}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--gold)}
.form select option{background:var(--tim-dam);color:#fff}
.form textarea{resize:vertical;min-height:78px}
.form .btn{width:100%;justify-content:center}
.form small{display:block;text-align:center;color:#a89bbd;font-size:12.5px;margin-top:10px}

/* ---------- Footer ---------- */
footer{background:#150827;color:#9d92b3;padding:40px 0 26px;font-size:14px}
.ft-top{display:flex;justify-content:space-between;gap:26px;flex-wrap:wrap;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.08)}
.ft-top .logo b{font-size:17px}
.ft-gt{max-width:380px;margin-top:10px;font-size:13.5px}
.ft-col h4{color:var(--gold-sang);font-size:14px;margin-bottom:11px;letter-spacing:.5px}
.ft-col a{display:block;margin-bottom:7px;font-size:13.5px;transition:.2s}
.ft-col a:hover{color:var(--gold-sang)}
.ft-bot{text-align:center;padding-top:20px;font-size:13px;color:#7a6f91}

/* ---------- Modal chi tiết ---------- */
.modal{
  position:fixed;inset:0;z-index:100;background:rgba(15,6,30,.82);backdrop-filter:blur(5px);
  display:none;align-items:center;justify-content:center;padding:20px;
}
.modal.mo{display:flex}
.modal-box{
  background:#fff;border-radius:20px;max-width:900px;width:100%;max-height:90vh;overflow:auto;
  display:grid;grid-template-columns:1fr 1fr;position:relative;
}
.modal-box img{width:100%;height:100%;min-height:340px;object-fit:cover}
.modal-noi{padding:34px 30px}
.modal-noi .ma-lon{color:var(--gold);font-weight:800;letter-spacing:2px;font-size:13px}
.modal-noi h3{font-size:26px;color:var(--tim);margin:6px 0 12px;font-weight:800;line-height:1.25}
.modal-noi > p{color:#6b6080;font-size:15px;margin-bottom:20px}
.ts{list-style:none;margin-bottom:22px}
.ts li{display:flex;justify-content:space-between;gap:14px;padding:10px 0;border-bottom:1px dashed #e6dff1;font-size:14.5px;color:#5a4d70}
.ts li b{color:var(--tim);font-weight:700;text-align:right}
.modal-cta{display:flex;gap:10px;flex-wrap:wrap}
.dong{
  position:absolute;top:12px;right:14px;width:36px;height:36px;border-radius:50%;border:0;cursor:pointer;
  background:rgba(27,11,51,.75);color:#fff;font-size:20px;line-height:1;z-index:2;
}

/* ---------- Nút nổi ---------- */
.noi{position:fixed;right:18px;bottom:20px;z-index:60;display:flex;flex-direction:column;gap:11px}
.noi a{
  width:54px;height:54px;border-radius:50%;display:grid;place-items:center;color:#fff;
  font-size:22px;box-shadow:0 8px 22px rgba(0,0,0,.28);transition:.25s;font-weight:700
}
.noi a:hover{transform:scale(1.08)}
.noi .zl{background:#0068ff;font-size:15px;letter-spacing:.5px}
.noi .tel{background:linear-gradient(135deg,var(--gold),var(--gold-sang));color:#2a1405}

/* ---------- Responsive ---------- */
/* Màn rộng: cho ảnh hero tràn nhẹ sang phải để nổi bật hơn */
@media(min-width:1400px){
  .hero-anh{margin-right:-72px}
}
@media(max-width:1024px){
  .luoi{grid-template-columns:repeat(3,1fr)}
  .ly-do,.buoc{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:860px){
  .menu{
    position:absolute;top:74px;left:0;right:0;background:var(--tim-dam);flex-direction:column;
    gap:0;padding:0;max-height:0;overflow:hidden;transition:.3s;border-bottom:1px solid var(--vien);
    align-items:flex-start;
  }
  .menu.mo{max-height:340px;padding:10px 0 18px}
  .menu a{padding:12px 22px;width:100%}
  .burger{display:block}
  .nav > .btn{display:none}
  .hero .wrap{grid-template-columns:1fr;gap:34px}

  .lh-grid{grid-template-columns:1fr;gap:30px}
  .modal-box{grid-template-columns:1fr}
  .modal-box img{min-height:250px;max-height:300px}
}
@media(max-width:640px){
  section{padding:52px 0}
  .luoi{grid-template-columns:repeat(2,1fr);gap:14px}
  .trust .wrap{grid-template-columns:repeat(2,1fr)}
  .ly-do,.buoc{grid-template-columns:1fr}
  .card-body{padding:13px}
  .card-body h3{font-size:14.5px}
  .card-body p{font-size:12.5px}
  .hero-usp{gap:18px}
  .modal-noi{padding:26px 22px}
}