/* ===== DESOU — Catalog & trang chi tiết dòng ===== */

/* Header nền cho trang con. backdrop-filter CHỈ ở desktop —
   ở mobile nó tạo containing block làm hỏng overlay nav fixed. */
body.subpage header{background:rgba(20,31,28,0.9);border-bottom:1px solid var(--line);}
@media(min-width:861px){ body.subpage header{background:rgba(20,31,28,0.82);backdrop-filter:blur(12px);} }

.page{max-width:1240px;margin:0 auto;padding:148px 5vw 96px;position:relative;z-index:2;}

.page-head{margin-bottom:48px;max-width:760px;}
.page-head .k{font-size:11px;letter-spacing:4px;text-transform:uppercase;color:var(--copper);margin-bottom:18px;}
.page-head h1{font-family:'Newsreader',serif;font-weight:200;font-size:clamp(40px,6vw,80px);line-height:1.02;letter-spacing:-1px;margin-bottom:18px;}
.page-head h1 em{font-style:italic;color:var(--warm);}
.page-head p{font-size:16px;line-height:1.7;color:var(--dim);}

/* Ô ảnh dùng chung — ảnh cutout blend multiply trên bệ sáng ấm */
.cat-media{position:relative;aspect-ratio:1/1;background:radial-gradient(circle at 50% 40%, #f5f0e3, #e4ddc7);display:flex;align-items:center;justify-content:center;overflow:hidden;}
.cat-media img{width:100%;height:100%;object-fit:cover;}
.cat-media.is-ph{background:linear-gradient(165deg, var(--emerald), var(--void-2));flex-direction:column;gap:12px;color:rgba(218,179,106,0.45);}
.cat-media.is-ph span{font-size:10.5px;letter-spacing:2px;text-transform:uppercase;color:var(--dim);}

.cat-tag{font-size:10px;letter-spacing:2.5px;text-transform:uppercase;color:var(--copper);}

/* Bộ lọc */
.cat-filter{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px;}
.chip{font-family:'Archivo',sans-serif;font-size:12px;letter-spacing:1px;text-transform:uppercase;color:var(--dim);background:transparent;border:1px solid var(--line);padding:9px 17px;border-radius:30px;cursor:pointer;transition:all .28s;}
.chip:hover{color:var(--cream);border-color:var(--copper);}
.chip.on{color:var(--void);background:var(--copper);border-color:var(--copper);}

/* Lưới các dòng */
.fam-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.fam-card{position:relative;display:flex;flex-direction:column;background:var(--void-2);border:1px solid var(--line);border-radius:16px;overflow:hidden;text-decoration:none;color:var(--cream);transition:transform .4s cubic-bezier(.2,.7,.2,1),box-shadow .4s,border-color .4s;}
.fam-card:hover{transform:translateY(-7px);border-color:rgba(192,150,63,0.42);box-shadow:0 26px 60px rgba(0,0,0,0.4);}
.fam-count{position:absolute;top:14px;right:14px;z-index:2;font-size:10px;letter-spacing:1.5px;text-transform:uppercase;color:var(--cream);background:rgba(20,31,28,0.55);backdrop-filter:blur(4px);padding:6px 11px;border-radius:20px;border:1px solid rgba(236,231,214,0.12);}
.fam-body{padding:22px 22px 26px;display:flex;flex-direction:column;gap:9px;flex:1;}
.fam-body h3{font-family:'Newsreader',serif;font-size:26px;font-weight:300;}
.fam-body p{font-size:13.5px;line-height:1.65;color:var(--dim);flex:1;}
.fam-go{margin-top:8px;font-style:italic;font-size:15px;color:var(--copper-2);transition:transform .3s;}
.fam-card:hover .fam-go{transform:translateX(5px);}

/* ===== Lưới MODEL tile (giống desou.vn, hover đổi góc) ===== */
.tile-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.tile{position:relative;display:flex;flex-direction:column;background:var(--void-2);border:1px solid var(--line);border-radius:14px;overflow:hidden;text-decoration:none;color:var(--cream);transition:transform .35s cubic-bezier(.2,.7,.2,1),box-shadow .35s,border-color .35s;}
.tile:hover{transform:translateY(-6px);border-color:rgba(192,150,63,0.42);box-shadow:0 22px 50px rgba(0,0,0,0.4);}
.tile-media{position:relative;aspect-ratio:1/1;background:radial-gradient(circle at 50% 42%,#f3eee1,#e4ddc7);overflow:hidden;}
.tile-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:opacity .5s ease;}
.tile-media .ti-b{opacity:0;}
.tile:hover .ti-a{opacity:0;}
.tile:hover .ti-b{opacity:1;}
.tile-w{position:absolute;top:12px;right:12px;z-index:2;font-size:10px;letter-spacing:1px;text-transform:uppercase;color:var(--cream);background:rgba(20,31,28,0.6);backdrop-filter:blur(4px);padding:5px 10px;border-radius:20px;border:1px solid rgba(236,231,214,0.14);}
.tile-body{padding:16px 16px 18px;display:flex;flex-direction:column;gap:5px;}
.tile-body h3{font-family:'Newsreader',serif;font-weight:300;font-size:20px;}

/* Chip công suất */
.opt-chips{display:flex;flex-wrap:wrap;gap:8px;}
.opt-chip{font-family:'Archivo',sans-serif;font-size:12.5px;letter-spacing:.5px;color:var(--cream);background:rgba(236,231,214,0.05);border:1px solid var(--line);padding:7px 14px;border-radius:8px;}

@media(max-width:1024px){.tile-grid{grid-template-columns:repeat(3,1fr);}}
@media(max-width:760px){.tile-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:440px){.tile-grid{grid-template-columns:1fr 1fr;gap:12px;}}

/* Lưới MODEL (dày hơn lưới nhóm lớn) */
.fam-grid.models{grid-template-columns:repeat(4,1fr);gap:18px;}
.fam-grid.models .fam-body{padding:16px 16px 20px;gap:7px;}
.fam-grid.models .fam-body h3{font-size:21px;}
.fam-grid.models .fam-body p{font-size:12.5px;}
@media(max-width:1100px){.fam-grid.models{grid-template-columns:repeat(3,1fr);}}
@media(max-width:760px){.fam-grid.models{grid-template-columns:repeat(2,1fr);}}
@media(max-width:480px){.fam-grid.models{grid-template-columns:1fr;}}

/* Mã đầy đủ trên trang model */
.model-code{font-size:13px;color:var(--dim);margin:-4px 0 14px;}
.model-code b{color:var(--copper-2);font-weight:400;letter-spacing:.5px;}

/* ===== Trang chi tiết ===== */
.crumb{display:flex;gap:10px;align-items:center;font-size:12px;letter-spacing:1px;text-transform:uppercase;color:var(--dim);margin-bottom:30px;}
.crumb a{color:var(--dim);text-decoration:none;}
.crumb a:hover{color:var(--copper);}
.crumb b{color:var(--cream);font-weight:400;}

.dt-hero{display:grid;grid-template-columns:1.05fr 1fr;gap:54px;align-items:start;}
.dt-gallery .cat-media.dt-main{border-radius:18px;border:1px solid var(--line);}
.dt-thumbs{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap;}
.dt-th{width:74px;height:74px;border-radius:11px;overflow:hidden;border:1px solid var(--line);background:var(--void-2);cursor:pointer;padding:0;transition:border-color .25s;}
.dt-th img{width:100%;height:100%;object-fit:cover;}
.dt-th.on{border-color:var(--copper);}

.dt-info h1{font-family:'Newsreader',serif;font-weight:200;font-size:clamp(34px,4.4vw,60px);line-height:1.04;letter-spacing:-1px;margin:10px 0 16px;}
.dt-blurb{font-size:16px;line-height:1.75;color:var(--cream);opacity:.92;margin-bottom:22px;}
.dt-hl{list-style:none;margin:0 0 26px;display:flex;flex-direction:column;gap:11px;}
.dt-hl li{position:relative;padding-left:26px;font-size:14.5px;color:var(--dim);}
.dt-hl li::before{content:'';position:absolute;left:0;top:7px;width:9px;height:9px;border-radius:50%;background:var(--copper);box-shadow:0 0 12px rgba(192,150,63,0.6);}

.spec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:13px;overflow:hidden;margin-bottom:28px;}
.spec-chip{background:var(--void-2);padding:14px 16px;display:flex;flex-direction:column;gap:5px;}
.spec-chip span{font-size:10px;letter-spacing:1.5px;text-transform:uppercase;color:var(--dim);}
.spec-chip b{font-size:15px;font-weight:400;color:var(--cream);}

/* Tùy chọn: màu choá */
.opt-block{margin:0 0 24px;}
.opt-label{display:block;font-size:11px;letter-spacing:1.5px;text-transform:uppercase;color:var(--copper);margin-bottom:12px;}
/* Màu choá = ảnh chén phản quang thật */
.reflectors{display:flex;gap:14px;flex-wrap:wrap;}
.refl{display:flex;flex-direction:column;align-items:center;gap:8px;margin:0;}
.refl img{height:52px;width:auto;background:#fff;border:1px solid var(--line);border-radius:10px;display:block;transition:transform .2s;}
.refl:hover img{transform:translateY(-2px);}
.refl figcaption{font-size:12px;color:var(--dim);letter-spacing:.3px;text-align:center;}

/* Badges · CCT · góc chiếu · light curve (bố cục youkun) */
.dt-badges{display:flex;flex-wrap:wrap;gap:16px;margin:10px 0 24px;align-items:flex-start;}
.badge{display:flex;flex-direction:column;align-items:center;gap:7px;width:78px;margin:0;border:none;padding:0;background:none;}
.badge img{width:60px;height:60px;object-fit:contain;background:#fff;border:1px solid var(--line);border-radius:12px;}
.badge figcaption{font-size:10px;color:var(--dim);text-transform:uppercase;letter-spacing:.6px;text-align:center;line-height:1.3;}
.badge.badge-txt b{display:flex;align-items:center;justify-content:center;width:60px;height:60px;background:#fff;border:1px solid var(--line);border-radius:12px;font-size:15px;color:#2a2a2c;font-weight:700;letter-spacing:.5px;}
.cct-row{display:flex;flex-wrap:wrap;gap:8px;}
.cct{font-size:12px;letter-spacing:.5px;color:#2a2a2c;background:var(--c);border-radius:8px;padding:7px 13px;font-weight:500;}
.brand-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.brand{display:inline-flex;align-items:center;justify-content:center;padding:7px 11px;border:1px solid var(--line);border-radius:7px;background:#fff;}
.brand img{height:15px;width:auto;display:block;}
.dt-specs{margin-top:72px;}
.spec-grid.wide{grid-template-columns:repeat(3,1fr);}
.ldc{margin-top:64px;}
.lc-row{display:flex;flex-wrap:wrap;gap:20px;margin-top:20px;}
.lc{display:flex;flex-direction:column;align-items:center;gap:8px;width:190px;}
.lc svg{width:170px;height:auto;background:#f4efe4;border:1px solid var(--line);border-radius:12px;padding:8px 4px;}
.lc-img{width:190px;height:auto;background:#fff;border:1px solid var(--line);border-radius:12px;padding:6px;object-fit:contain;display:block;}
.lc span{font-family:'Newsreader',serif;font-size:15px;color:var(--copper-2);}
/* Kính lọc quang học = ảnh thật */
.optical{margin:0;display:flex;align-items:center;gap:14px;}
.optical img{height:52px;width:auto;background:#fff;border:1px solid var(--line);border-radius:10px;padding:2px;display:block;flex:none;}
.optical figcaption{font-size:12px;color:var(--dim);letter-spacing:.3px;text-align:left;line-height:1.4;}
@media(max-width:860px){.spec-grid.wide{grid-template-columns:repeat(2,1fr);}}

.dt-cta{display:flex;flex-wrap:wrap;gap:12px;}
.btn-primary{background:var(--copper);color:var(--void);padding:14px 26px;border-radius:30px;text-decoration:none;font-family:'Newsreader',serif;font-style:italic;font-size:16px;transition:background .3s,transform .3s;}
.btn-primary:hover{background:var(--copper-2);transform:translateY(-2px);}
.btn-ghost{display:inline-flex;align-items:center;border:1px solid var(--line);color:var(--cream);padding:14px 20px;border-radius:30px;text-decoration:none;font-size:13px;letter-spacing:.5px;transition:all .3s;}
.btn-ghost:hover{border-color:var(--copper);color:var(--copper-2);}

/* Nhóm con (group) trong trang chi tiết */
.dt-group{margin-top:70px;}
.dt-group .spec-grid{grid-template-columns:repeat(3,1fr);max-width:720px;margin:22px 0 0;}

/* Bảng biến thể */
.dt-variants{margin-top:84px;}
.dt-sec-head{display:flex;align-items:baseline;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:6px;}
.dt-sec-head h2{font-family:'Newsreader',serif;font-size:clamp(26px,3.4vw,36px);font-weight:300;}
.dt-sec-head span{font-size:12px;letter-spacing:1.5px;text-transform:uppercase;color:var(--copper);}
.vtable-wrap{overflow-x:auto;}
.vtable{width:100%;border-collapse:collapse;font-size:14px;min-width:620px;}
.vtable th{text-align:left;font-family:'Archivo',sans-serif;font-weight:500;font-size:10.5px;letter-spacing:1.5px;text-transform:uppercase;color:var(--copper);padding:18px 14px 14px;}
.vtable td{padding:15px 14px;border-top:1px solid var(--line);color:var(--cream);vertical-align:top;}
.vtable tbody tr:hover{background:rgba(236,231,214,0.025);}
.vc{font-family:'Newsreader',serif;font-size:16px;color:var(--copper-2);white-space:nowrap;}
.vn{color:var(--dim);}

/* Nhãn "sắp ra mắt" */
.fam-count.is-soon{background:rgba(192,150,63,0.16);color:var(--copper-2);border-color:rgba(192,150,63,0.3);}
.fam-card.is-soon .cat-media{opacity:.92;}

/* Khối coming soon trong trang chi tiết */
.coming{margin-top:70px;padding:56px 42px;background:var(--void-2);border:1px solid var(--line);border-radius:18px;text-align:center;}
.coming-tag{display:inline-block;font-size:10.5px;letter-spacing:2.5px;text-transform:uppercase;color:var(--copper);background:rgba(192,150,63,0.14);border:1px solid rgba(192,150,63,0.3);padding:7px 16px;border-radius:30px;margin-bottom:22px;}
.coming h2{font-family:'Newsreader',serif;font-weight:300;font-size:clamp(26px,3.4vw,38px);margin-bottom:16px;}
.coming p{font-size:15.5px;line-height:1.75;color:var(--dim);max-width:560px;margin:0 auto 28px;}
.coming .dt-cta{justify-content:center;}

/* Trust */
.trust{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:80px;padding:42px;background:var(--void-2);border:1px solid var(--line);border-radius:18px;}
.trust-item{text-align:center;display:flex;flex-direction:column;gap:7px;}
.trust-item b{font-family:'Newsreader',serif;font-size:26px;font-weight:300;color:var(--warm);}
.trust-item span{font-size:12.5px;color:var(--dim);}

/* Related */
.related{margin-top:84px;}
.related h2{font-family:'Newsreader',serif;font-size:clamp(24px,3vw,32px);font-weight:300;margin-bottom:24px;}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.rel-card{display:flex;gap:15px;align-items:center;background:var(--void-2);border:1px solid var(--line);border-radius:13px;padding:13px;text-decoration:none;color:var(--cream);transition:border-color .3s,transform .3s;}
.rel-card:hover{border-color:rgba(192,150,63,0.4);transform:translateY(-3px);}
.rel-card .cat-media{width:86px;height:86px;border-radius:9px;flex:none;}
.rel-card h4{font-family:'Newsreader',serif;font-size:19px;font-weight:300;margin-top:3px;}

/* Responsive */
@media(max-width:1024px){
  .fam-grid{grid-template-columns:repeat(2,1fr);}
  .dt-hero{grid-template-columns:1fr;gap:34px;}
  .dt-gallery{max-width:520px;}
  .rel-grid{grid-template-columns:1fr;}
}
@media(max-width:860px){
  /* bỏ backdrop-filter để header không "giam" overlay nav fixed */
  body.subpage header{backdrop-filter:none;background:rgba(20,31,28,0.92);}
  .page{padding:120px 6vw 72px;}
  .fam-grid{grid-template-columns:1fr;}
  .trust{grid-template-columns:repeat(2,1fr);padding:28px;gap:24px 14px;}
  .dt-group .spec-grid{grid-template-columns:repeat(2,1fr);}
}