/* Layout lấy từ phòng trà Đại Bình An: nền gỗ óc chó tối, ánh đèn hắt vàng hổ phách, mặt bàn sơn mài đỏ son bóng cho khối kêu gọi, phần đọc trắng sứ với điểm xanh lam men sứ. */
:root{
  --lac:#1B100A; --lac2:#28180F; --lac3:#4A1A10; --cinn:#C8231A; --cinn2:#8F120B;
  --gold:#E4B964; --gold2:#F8DFA3; --golddim:rgba(228,185,100,.3);
  --ivory:#F8EEDC; --rose:#D9C3A5;
  --silk:#FBF8F1; --silk2:#F3EBDD; --ink:#23160E; --ink2:#5C4838; --red:#A8170E; --goldd:#7A5A20; --line:#E4D5BA; --cobalt:#22418F;
  --display:"Cormorant Garamond","Times New Roman",Georgia,serif;
  --body:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",sans-serif;
  --han:"Noto Serif SC","Songti SC","SimSun",serif;
}
html{background:var(--lac)}
body{background:var(--lac);color:var(--ivory);font-family:var(--body);font-weight:300;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:30;background:var(--lac)}
.wrap{max-width:1120px;margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
h1,h2,h3{font-family:var(--display);font-weight:400;line-height:1.1;text-wrap:balance;margin:0}
p{margin:0}
a{color:inherit}
.han{font-family:var(--han);font-weight:500;letter-spacing:.18em}
.label{font-size:.68rem;letter-spacing:.32em;text-transform:uppercase;font-weight:400;color:var(--gold)}
.goldtext{background:linear-gradient(100deg,#B8904A 0%,#F4E2B1 38%,#C99E57 60%,#F7E8BE 80%,#B8904A 100%);background-size:220% 100%;-webkit-background-clip:text;background-clip:text;color:transparent}
:focus-visible{outline:1px solid var(--gold);outline-offset:4px}

/* Header */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:rgba(27,16,10,.9);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--golddim)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:12px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.seal{display:inline-flex;flex-direction:column;align-items:center;justify-content:center;background:var(--cinn);color:#FBEDE3;font-family:var(--han);font-weight:700;line-height:1.05;border-radius:3px;box-shadow:inset 0 0 0 2px rgba(255,235,220,.18)}
.brand .seal{width:30px;padding:5px 0;font-size:.72rem}
.brand b{white-space:nowrap;font-family:var(--display);font-weight:500;font-size:1.25rem;letter-spacing:.26em;text-transform:uppercase;color:var(--ivory)}
.brand small{display:block;font-size:.56rem;letter-spacing:.34em;text-transform:uppercase;color:var(--rose);margin-top:-1px}
.tnav{display:flex;align-items:center;gap:22px}
.tnav a{font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;text-decoration:none;color:var(--rose);transition:color .3s}
.tnav a:hover{color:var(--gold2)}
.menu-btn{white-space:nowrap;font:inherit;font-size:.74rem;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);background:none;border:1px solid var(--golddim);padding:9px 14px;cursor:pointer;display:flex;align-items:center;gap:10px}
.menu-btn i{display:block;width:16px;height:7px;border-top:1px solid currentColor;border-bottom:1px solid currentColor}

/* Drawer */
.drawer{position:fixed;inset:0;z-index:40;background:radial-gradient(90% 70% at 80% 0%,var(--lac3),var(--lac) 70%);overflow-y:auto;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
.drawer .wrap{padding-block:18px 48px}
.drawer .dtop{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}
.close{font:inherit;background:none;border:1px solid var(--golddim);color:var(--gold);width:42px;height:42px;font-size:1.3rem;cursor:pointer}
.dlist{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:48px}
.dlist a{display:grid;grid-template-columns:40px minmax(0,1fr) auto;align-items:baseline;gap:8px;padding-block:16px;border-bottom:1px solid var(--golddim);text-decoration:none;transition:padding .35s ease,color .3s}
.dlist a:hover{padding-left:8px;color:var(--gold2)}
.dlist .n{font-family:var(--display);color:var(--gold);font-size:1rem}
.dlist .t{font-family:var(--display);font-size:1.55rem;line-height:1.2}
.dlist .h{font-family:var(--han);color:var(--rose);font-size:.8rem;letter-spacing:.2em}
.dlist a[aria-current="page"] .t{color:var(--gold)}
@media (prefers-reduced-motion:no-preference){.drawer:not([hidden]){animation:fade .45s ease both}}

/* Views */
.view{display:block}
[hidden]{display:none!important}
@media (prefers-reduced-motion:no-preference){
  .view:not([hidden]) .rise{animation:rise .9s cubic-bezier(.2,.7,.2,1) both}
  .view:not([hidden]) .rise.d1{animation-delay:.08s}
  .view:not([hidden]) .rise.d2{animation-delay:.18s}
  .view:not([hidden]) .rise.d3{animation-delay:.3s}
  .view:not([hidden]) .goldtext{animation:sheen 2.6s ease .4s both}
  .float{animation:float 9s ease-in-out infinite}
  html{scroll-behavior:smooth}
}
@keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
@keyframes fade{from{opacity:0}to{opacity:1}}
@keyframes sheen{from{background-position:100% 0}to{background-position:0 0}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}

canvas.jade{display:block;width:100%;max-width:100%}

/* Home hero */
.hero{position:relative;overflow:hidden;background:radial-gradient(50% 60% at 72% 45%,rgba(200,35,26,.32),transparent 70%),radial-gradient(60% 50% at 20% 0%,rgba(228,185,100,.14),transparent 70%)}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:40px;align-items:center;padding-block:64px 80px}
.hero h1{font-size:clamp(3.4rem,10vw,7.2rem);font-weight:300;letter-spacing:-.01em;margin-top:18px}
.hero .sub{font-family:var(--display);font-style:italic;font-size:clamp(1.4rem,3.4vw,2rem);color:var(--rose);margin-top:10px}
.hero .lede{margin-top:24px;max-width:46ch;color:var(--rose)}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px}
.btn{font:inherit;font-size:.76rem;letter-spacing:.18em;text-transform:uppercase;font-weight:400;padding:16px 26px;text-decoration:none;cursor:pointer;border:0;display:inline-block;transition:background .3s,color .3s,box-shadow .3s}
.btn.gold{background:linear-gradient(180deg,#F3D08A,#D19F45);color:#24120A}
.btn.gold:hover{background:linear-gradient(180deg,#FADD9E,#DDAD55)}
.btn.line{color:var(--ivory);box-shadow:inset 0 0 0 1px var(--golddim)}
.btn.line:hover{box-shadow:inset 0 0 0 1px var(--gold)}
.btn.red{background:var(--red);color:#FBEDE3}
.stage{position:relative;max-width:440px;width:100%;justify-self:center}
.stage .seal{position:absolute;right:4%;bottom:12%;width:38px;padding:10px 0;font-size:1.05rem;gap:4px}

/* Pillars */
.pillars{border-top:1px solid var(--golddim);border-bottom:1px solid var(--golddim)}
.pillars .wrap{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}
.pillars div.p{padding:32px 28px;display:flex;flex-direction:column;gap:8px}
.pillars div.p+div.p{border-left:1px solid var(--golddim)}
.pillars h3{font-size:1.7rem;color:var(--gold2)}
.pillars p{font-size:.92rem;color:var(--rose)}

/* Sections on lacquer */
.band{padding-block:96px}
.band .head{display:flex;flex-direction:column;gap:14px;margin-bottom:48px;max-width:640px}
.band h2{font-size:clamp(2.3rem,6vw,3.8rem);font-weight:300}
.band .head p{color:var(--rose)}

.forms{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px 22px}
.card{display:flex;flex-direction:column;gap:14px;text-decoration:none;color:inherit}
.card .ph{position:relative;overflow:hidden;background:#140C07}
.card .ph canvas{transition:transform 1.2s cubic-bezier(.2,.7,.2,1)}
.card:hover .ph canvas{transform:scale(1.035)}
.card .meta{display:flex;justify-content:space-between;align-items:baseline;gap:12px;border-top:1px solid var(--golddim);padding-top:12px}
.card h3{font-size:1.6rem}
.card .h{font-family:var(--han);font-size:.78rem;color:var(--gold);letter-spacing:.2em;white-space:nowrap}
.card p{font-size:.9rem;color:var(--rose)}
.card .more{font-size:.68rem;letter-spacing:.24em;text-transform:uppercase;color:var(--gold)}

.know{background:linear-gradient(180deg,var(--lac2),var(--lac))}
.klist{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--golddim)}
.klist a{display:flex;flex-direction:column;gap:14px;padding:32px 28px 36px 0;text-decoration:none;transition:background .4s}
.klist a+a{padding-left:28px;border-left:1px solid var(--golddim)}
.klist .big{font-family:var(--han);font-size:2.4rem;color:var(--gold);letter-spacing:.1em;line-height:1}
.klist h3{font-size:1.8rem}
.klist p{font-size:.92rem;color:var(--rose)}
.klist .more{font-size:.68rem;letter-spacing:.24em;text-transform:uppercase;color:var(--gold);margin-top:auto}

/* Phòng trà */
.room .wrap{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:56px;align-items:center}
.room .txt{display:flex;flex-direction:column;gap:18px}
.room h2{font-size:clamp(2.3rem,6vw,3.8rem);font-weight:300}
.room .txt p{color:var(--rose)}
.photos{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;align-items:start}
.photos figure{margin:0;overflow:hidden;background:#140C07}
.photos figure:nth-child(2){margin-top:56px}
.photos img{display:block;width:100%;height:auto;aspect-ratio:1000/1778;object-fit:cover;transition:transform 1.4s cubic-bezier(.2,.7,.2,1)}
.photos figure:hover img{transform:scale(1.03)}
.photos figcaption{font-size:.68rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);padding:10px 2px 0}
.fig{margin:8px 0;display:flex;flex-direction:column;gap:8px}
.fig img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover;object-position:50% 45%}
.fig figcaption{font-size:.82rem;color:var(--ink2)}
@media (max-width:760px){.room .wrap{grid-template-columns:minmax(0,1fr);gap:32px}.photos{gap:10px}.photos figure:nth-child(2){margin-top:36px}}
/* CTA */
.cta{position:relative;overflow:hidden;text-align:center;padding-block:110px;background:linear-gradient(172deg,transparent 38%,rgba(255,220,190,.10) 46%,transparent 54%),radial-gradient(80% 120% at 50% 0%,#D52A1F,var(--cinn) 45%,var(--cinn2) 100%)}
.cta p,.cta .contact{color:#F7DCCB}
.cta .btn.line{box-shadow:inset 0 0 0 1px rgba(248,223,163,.6)}
.cta .wrap{display:flex;flex-direction:column;align-items:center;gap:20px}
.cta h2{font-size:clamp(2.4rem,7vw,4.4rem);font-weight:300}
.cta p{color:var(--rose);max-width:50ch}
.cta .actions{justify-content:center;margin-top:8px}
.contact{font-variant-numeric:tabular-nums;font-size:.84rem;letter-spacing:.16em;color:var(--rose)}

/* Article */
.ahero{background:radial-gradient(55% 80% at 80% 30%,rgba(200,35,26,.3),transparent 70%),radial-gradient(50% 60% at 10% 0%,rgba(228,185,100,.12),transparent 70%)}
.ahero .wrap{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:40px;align-items:center;padding-block:44px 56px}
.crumb{font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--rose)}
.crumb a{text-decoration:none;color:var(--gold)}
.ahero h1{font-size:clamp(2.8rem,8vw,5.4rem);font-weight:300;margin-top:20px}
.ahero .hanbig{font-family:var(--han);font-size:clamp(1rem,2.4vw,1.3rem);color:var(--gold);letter-spacing:.4em;margin-top:14px}
.ahero .lede{margin-top:22px;color:var(--rose);font-size:1.05rem;max-width:48ch}
.ahero .art{max-width:360px;width:100%;justify-self:center}

.paper{background:var(--silk);color:var(--ink);padding-block:72px 88px}
.paper .wrap{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:64px;align-items:start}
.prose{display:flex;flex-direction:column;gap:20px;max-width:68ch;min-width:0}
.prose h2{font-size:clamp(1.9rem,4.5vw,2.5rem);color:var(--red);font-weight:500;margin-top:24px}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:1.45rem;color:var(--ink);font-weight:600}
.prose p,.prose li{color:var(--ink2);font-weight:300;font-size:1.02rem}
.prose strong{color:var(--ink);font-weight:500}
.prose ul,.prose ol{margin:0;padding-left:1.2em;display:flex;flex-direction:column;gap:8px}
.prose a{color:var(--red);text-underline-offset:3px}
.prose .q{font-family:var(--display);font-style:italic;font-size:1.55rem;line-height:1.35;color:var(--ink);border-left:2px solid var(--gold);padding:4px 0 4px 20px}
.prose .q small{display:block;font-family:var(--han);font-style:normal;font-size:.85rem;color:var(--cobalt);letter-spacing:.15em;margin-top:8px}
.note{font-size:.86rem!important;color:var(--ink2);background:var(--silk2);padding:14px 16px;border-left:2px solid var(--cinn)}
.aside{position:sticky;top:calc(env(safe-area-inset-top,0px) + 84px);border:1px solid var(--line);border-top:2px solid var(--cinn);padding:24px;background:#FFFDF8;display:flex;flex-direction:column;gap:16px}
.aside .label{color:var(--goldd)}
.aside dl{margin:0;display:flex;flex-direction:column;gap:14px}
.aside dt{font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;color:var(--goldd)}
.aside dd{margin:2px 0 0;font-size:.95rem;color:var(--ink);line-height:1.55}

.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.tile{display:flex;flex-direction:column;gap:10px;min-width:0}
.tile .ph{background:#F2EBDF}
.tile h3{font-size:1.35rem;display:flex;justify-content:space-between;gap:8px;align-items:baseline;flex-wrap:wrap}
.tile h3 span{font-family:var(--han);font-size:.78rem;color:var(--cobalt);letter-spacing:.15em;font-weight:500}
.tile p{font-size:.92rem!important}

.ladder{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.rung{display:grid;grid-template-columns:120px minmax(0,1fr);gap:22px;padding-block:20px;border-bottom:1px solid var(--line);align-items:center}
.rung .ph{background:#F2EBDF}
.rung h3{font-size:1.4rem;display:flex;gap:10px;align-items:baseline;flex-wrap:wrap}
.rung h3 span{font-family:var(--han);font-size:.8rem;color:var(--cobalt);font-weight:500;letter-spacing:.15em}
.rung .lv{font-size:.64rem;letter-spacing:.2em;text-transform:uppercase;color:var(--cinn);font-weight:500}
.rung p{font-size:.95rem!important;margin-top:4px}

.tbl{overflow-x:auto;border:1px solid var(--line);background:#FBF7EE}
.tbl table{border-collapse:collapse;width:100%;min-width:480px;font-size:.92rem}
.tbl th,.tbl td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--line);color:var(--ink2);vertical-align:top}
.tbl th{color:var(--ink);font-weight:500;background:var(--silk2)}
.tbl tr:last-child td{border-bottom:0}
.tbl .ok{color:#2F6B47;font-weight:500}.tbl .no{color:var(--cinn);font-weight:500}

.tips{list-style:none;padding:0!important;counter-reset:t}
.tips li{counter-increment:t;display:grid;grid-template-columns:52px minmax(0,1fr);gap:4px;padding-block:18px;border-bottom:1px solid var(--line)}
.tips li::before{content:counter(t,decimal-leading-zero);font-family:var(--display);font-size:1.6rem;color:var(--cinn);line-height:1.2}
.tips h3{font-size:1.3rem;margin-bottom:6px}

.fill{border:1px dashed var(--goldd);padding:18px 20px;background:#FFF9EC;display:flex;flex-direction:column;gap:10px}
.fill .label{color:var(--cinn)}
.fill li{font-size:.95rem}
.chip{background:#F4E2B6;color:#5C4314;padding:1px 8px;font-size:.85em;white-space:nowrap}

.pn{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);margin-top:40px}
.pn a{padding:22px 0;text-decoration:none;display:flex;flex-direction:column;gap:4px}
.pn a+a{text-align:right;border-left:1px solid var(--line);padding-left:20px}
.pn span{font-size:.66rem;letter-spacing:.22em;text-transform:uppercase;color:var(--goldd)}
.pn b{font-family:var(--display);font-weight:500;font-size:1.35rem;color:var(--red)}
.mini-cta{background:linear-gradient(172deg,transparent 40%,rgba(255,220,190,.1) 48%,transparent 56%),linear-gradient(160deg,#D02A1E,var(--cinn2));color:var(--ivory);padding:28px;display:flex;flex-direction:column;gap:14px;margin-top:20px}
.mini-cta h3{font-size:1.8rem;font-weight:300;color:var(--gold2)}
.mini-cta p{color:#F7DCCB!important;font-size:.95rem!important}

footer{border-top:1px solid var(--golddim);padding-block:32px;font-size:.76rem;color:var(--rose)}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;align-items:center}
footer .brand b{font-size:1rem}

@media (max-width:960px){
  .tnav a{display:none}
  .paper .wrap{grid-template-columns:minmax(0,1fr)}
  .aside{position:static;order:-1}
  .forms{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:760px){
  .hero .wrap,.ahero .wrap{grid-template-columns:minmax(0,1fr);gap:8px}
  .hero .wrap{padding-block:24px 64px}
  .stage{order:-1;max-width:320px}
  .ahero .art{order:-1;max-width:240px}
  .ahero .wrap{padding-block:20px 44px}
  .pillars .wrap,.klist{grid-template-columns:minmax(0,1fr)}
  .pillars div.p{padding:24px 0}
  .pillars div.p+div.p,.klist a+a{border-left:0;border-top:1px solid var(--golddim);padding-left:0}
  .klist a{padding:26px 0}
  .band{padding-block:72px}
  .dlist{grid-template-columns:minmax(0,1fr)}
  .grid3{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
  .rung{grid-template-columns:84px minmax(0,1fr);gap:16px}
  .paper{padding-block:48px 64px}
}
@media (max-width:440px){
  .forms{gap:24px 14px}
  .card h3{font-size:1.3rem}
  .card p{display:none}
  .card .meta{flex-direction:column;gap:2px}
  .grid2{grid-template-columns:minmax(0,1fr)}
  .brand small{display:none}
  .brand b{font-size:1.02rem;letter-spacing:.16em}
  .menu-btn{padding:9px 11px;letter-spacing:.12em}
  .pn b{font-size:1.1rem}
}

/* ===== bổ sung cho bản nhiều trang ===== */
html{scroll-padding-top:84px}
.fig img{height:auto}
body{margin:0}
[hidden]{display:none!important}
.contact a{color:inherit;text-decoration:none;border-bottom:1px solid currentColor}
.fnav{display:flex;flex-wrap:wrap;gap:8px 22px;max-width:640px}
.fnav a{text-decoration:none;color:var(--rose);font-size:.78rem}
.fnav a:hover{color:var(--gold2)}
footer .wrap{align-items:flex-start}
footer .fcol{display:flex;flex-direction:column;gap:14px;min-width:0}
footer .small{font-size:.72rem;opacity:.8}
.cinfo{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;border-top:1px solid var(--golddim);margin-top:28px;text-align:left;width:100%;max-width:720px}
.cinfo div{padding:20px 0;border-bottom:1px solid var(--golddim)}
.cinfo div:nth-child(odd){padding-right:20px}
.cinfo dt{font-size:.66rem;letter-spacing:.22em;text-transform:uppercase;color:var(--gold2)}
.cinfo dd{margin:4px 0 0;color:#FBEBDD}
.cinfo a{color:inherit}
@media (max-width:560px){.cinfo{grid-template-columns:minmax(0,1fr)}.cinfo div:nth-child(odd){padding-right:0}}