/* Trang chủ Dũng DG — bố cục mới, giữ màu thương hiệu kem · vàng đồng · nâu đậm. */
:root{
  --cream:#faf7f1;--cream-2:#f3ece0;--sand:#eadfcd;--paper:#fffdf8;
  --gold:#a77b39;--gold-light:#d8b878;--gold-deep:#7a5520;
  --ink:#302b25;--ink-2:#403529;--night:#1d1a16;--muted:#7b7062;--line:#e4ddd1;
  --radius:22px;--shadow:0 18px 50px -24px rgba(48,43,37,.35);
  --serif:'Playfair Display',Georgia,serif;--sans:'Be Vietnam Pro',system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;background:var(--cream);color:var(--ink);font:400 16px/1.65 var(--sans);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
.shell{width:min(1180px,100% - 40px);margin-inline:auto}
.eyebrow{margin:0 0 14px;color:var(--gold);font-size:12px;font-weight:600;letter-spacing:.18em;text-transform:uppercase}
h1,h2,h3{font-family:var(--serif);font-weight:500;line-height:1.12;margin:0;color:var(--ink)}
h1 em,h2 em{color:var(--gold);font-style:italic}
h2{font-size:clamp(32px,4.4vw,54px)}
h3{font-size:22px}
.lead{font-size:18px;color:var(--ink-2)}
.muted{color:var(--muted)}
.center{text-align:center}

/* Nút */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 24px;border-radius:999px;border:1px solid transparent;font:600 15px/1 var(--sans);text-decoration:none;cursor:pointer;transition:transform .2s,background .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px)}
.btn-gold{background:var(--gold);color:#fff;box-shadow:0 10px 24px -12px rgba(167,123,57,.9)}
.btn-gold:hover{background:var(--gold-deep)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--cream)}
.btn-light{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.35);color:#fff}
.btn-block{width:100%}

/* Thanh thông báo & header */
.topbar{background:var(--night);color:var(--gold-light);text-align:center;font-size:13px;letter-spacing:.04em;padding:9px 16px}
.topbar a{color:#fff;font-weight:600}
.site-header{position:sticky;top:0;z-index:50;background:rgba(250,247,241,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:border-color .2s,box-shadow .2s}
.site-header.scrolled{border-color:var(--line);box-shadow:0 8px 30px -20px rgba(48,43,37,.4)}
.header-row{display:flex;align-items:center;gap:28px;height:78px;position:relative}
.logo{display:flex;flex-direction:column;align-items:center;text-decoration:none}
.logo-mark{display:block;width:66px;height:44px;background:var(--gold);-webkit-mask:url('dg-symbol-original-mask.svg') center/contain no-repeat;mask:url('dg-symbol-original-mask.svg') center/contain no-repeat}
.logo-name{display:block;width:80px;height:19px;margin-top:-3px;background:var(--gold-deep);-webkit-mask-image:url('dg-full-original-mask.svg');mask-image:url('dg-full-original-mask.svg');-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;-webkit-mask-size:86px 49px;mask-size:86px 49px;-webkit-mask-position:center -25px;mask-position:center -25px}
.main-nav{display:flex;gap:26px;margin-left:auto}
.main-nav a{text-decoration:none;font-size:15px;font-weight:500;color:var(--ink-2);position:relative;padding:6px 0}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--gold);transform:scaleX(0);transition:transform .25s}
.main-nav a:hover::after{transform:scaleX(1)}
.header-cta{padding:12px 22px}
.menu-toggle{display:none;width:44px;height:44px;border:0;background:transparent;cursor:pointer;flex-direction:column;justify-content:center;gap:6px;padding:10px}
.menu-toggle span{display:block;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s}

/* Hero */
.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:64px 0 72px}
.hero h1{font-size:clamp(40px,5.4vw,70px);letter-spacing:-.01em}
.hero .lead{max-width:520px;margin:24px 0 32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:44px 0 0;padding-top:28px;border-top:1px solid var(--line)}
.hero-facts dt{font-family:var(--serif);font-size:38px;color:var(--gold);line-height:1}
.hero-facts dd{margin:8px 0 0;font-size:13px;color:var(--muted)}
.hero-visual{position:relative;justify-self:center;width:min(100%,470px)}
.hero-arch{border-radius:240px 240px 28px 28px;overflow:hidden;aspect-ratio:4/5.2;background:var(--sand);box-shadow:var(--shadow)}
.hero-arch img{width:100%;height:100%;object-fit:cover}
.hero-badge{position:absolute;left:-34px;bottom:56px;display:flex;align-items:center;gap:12px;padding:12px 18px 12px 12px;background:var(--paper);border-radius:18px;box-shadow:var(--shadow);text-decoration:none}
.hero-badge b{display:block;font-size:14px}
.hero-badge small{color:var(--muted);font-size:12px}
.play{display:grid;place-items:center;width:42px;height:42px;border-radius:50%;background:var(--gold);color:#fff;font-size:14px;flex:none}
.hero-seal{position:absolute;right:-22px;top:46px;width:116px;height:116px;border-radius:50%;background:var(--night);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;box-shadow:var(--shadow);border:4px solid var(--cream)}
.hero-seal .logo-mark{width:58px;height:38px;background:var(--gold-light)}
.hero-seal small{color:var(--gold-light);font-size:10px;letter-spacing:.14em;text-transform:uppercase}

/* Dải chữ chạy */
.marquee{background:var(--gold);color:#fff;overflow:hidden;padding:16px 0;border-block:1px solid var(--gold-deep)}
.marquee-track{display:flex;gap:28px;width:max-content;animation:scroll 38s linear infinite;font-family:var(--serif);font-size:22px;font-style:italic;white-space:nowrap}
.marquee i{font-style:normal;color:var(--night);opacity:.55}
@keyframes scroll{to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){.marquee-track{animation:none}html{scroll-behavior:auto}}

/* Khung section */
.section{padding:96px 0}
.section-head{margin-bottom:44px}
.section-head.split{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:end}
.section-head.split>p{margin:0;color:var(--muted);font-size:16px}
.section-head.center{text-align:center}

/* Dịch vụ */
.services{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.service{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s}
.service:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.service img{aspect-ratio:4/3.4;width:100%;object-fit:cover;background:var(--sand)}
.service-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1;position:relative}
.service .num{position:absolute;right:18px;top:16px;font-family:var(--serif);color:var(--line);font-size:30px}
.service .tag{font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--gold)}
.service p{margin:0;font-size:14px;color:var(--muted);flex:1}
.service a{margin-top:8px;font-weight:600;font-size:14px;text-decoration:none;color:var(--gold-deep)}
.service a:hover{text-decoration:underline}
.service-cta{background:var(--night);border-color:var(--night);padding:28px 24px;justify-content:center;gap:12px}
.service-cta h3{color:#fff;font-size:28px}
.service-cta p{color:#cfc4b2;font-size:14px;margin:0}
.service-cta .btn{margin-top:8px}

/* Vì sao */
.why{background:var(--night);color:#e9e1d3;padding:104px 0}
.why h2{color:#fff}
.why h2 em{color:var(--gold-light)}
.why .lead{color:#cfc4b2;margin:18px 0 8px}
.why .eyebrow{color:var(--gold-light)}
.why-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:72px;align-items:center}
.why-visual{position:relative}
.why-visual img{border-radius:var(--radius);aspect-ratio:4/5;object-fit:cover;width:100%}
.why-stamp{position:absolute;right:-24px;bottom:34px;width:138px;height:138px;border-radius:50%;display:grid;place-items:center;text-align:center;background:var(--gold);color:#fff;font-family:var(--serif);font-style:italic;font-size:17px;line-height:1.3;transform:rotate(-8deg);box-shadow:0 18px 40px -16px rgba(0,0,0,.6)}
.reasons{list-style:none;counter-reset:r;padding:0;margin:28px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:0 28px}
.reasons li{counter-increment:r;padding:18px 0 18px 46px;border-top:1px solid rgba(255,255,255,.12);position:relative}
.reasons li::before{content:counter(r,decimal-leading-zero);position:absolute;left:0;top:18px;color:var(--gold-light);font-family:var(--serif);font-size:20px}
.reasons b{display:block;color:#fff;font-weight:600;margin-bottom:4px}
.reasons span{font-size:14px;color:#b9ad9a}

/* Bộ ảnh concept */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.chip{border:1px solid var(--line);background:var(--paper);color:var(--ink-2);padding:10px 16px;border-radius:999px;font:500 14px/1 var(--sans);cursor:pointer;transition:all .2s}
.chip small{color:var(--muted);margin-left:4px}
.chip:hover{border-color:var(--gold)}
.chip[aria-selected="true"]{background:var(--ink);border-color:var(--ink);color:var(--cream)}
.chip[aria-selected="true"] small{color:var(--gold-light)}
.concepts{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;min-height:200px}
.concept{position:relative;border:0;padding:0;border-radius:20px;overflow:hidden;cursor:pointer;background:var(--sand);aspect-ratio:3/4;text-align:left;font:inherit;color:#fff}
.concept img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.concept:hover img{transform:scale(1.05)}
.concept::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 52%,rgba(29,26,22,.82))}
.concept-meta{position:absolute;left:14px;right:14px;bottom:14px;z-index:1;display:flex;justify-content:space-between;align-items:flex-end;gap:8px}
.concept-meta small{display:block;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--gold-light)}
.concept-meta b{font-family:var(--serif);font-size:22px;font-weight:500}
.concept-meta>span:last-child{font-size:12px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);padding:5px 10px;border-radius:999px;white-space:nowrap}
#conceptMore{margin-top:30px}
.film{display:block;position:relative;margin:64px 0 28px;border-radius:28px;overflow:hidden;aspect-ratio:21/8;background:var(--night);text-decoration:none}
.film img{width:100%;height:100%;object-fit:cover;opacity:.82;transition:opacity .3s}
.film:hover img{opacity:1}
.film-label{position:absolute;left:28px;bottom:26px;display:flex;align-items:center;gap:14px;color:#fff;background:rgba(29,26,22,.55);backdrop-filter:blur(6px);padding:12px 20px 12px 12px;border-radius:18px}
.film-label b{display:block;font-family:var(--serif);font-size:20px;font-weight:500}
.film-label small{color:var(--gold-light)}

/* Bảng giá (nội dung do pricing.js dựng) */
.pricing{background:var(--cream-2)}
.price-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.price-tabs button{border:1px solid var(--line);background:var(--paper);padding:11px 18px;border-radius:999px;font:500 14px/1 var(--sans);color:var(--ink-2);cursor:pointer}
.price-tabs button[aria-selected="true"]{background:var(--gold);border-color:var(--gold);color:#fff}
.price-group-note{color:var(--muted);margin:0 0 20px}
.pricing-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}
.pricing-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;display:flex;flex-direction:column;gap:10px}
.pricing-card:nth-child(2){border-color:var(--gold);box-shadow:var(--shadow)}
.pricing-kicker{font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--gold)}
.pricing-card h3{font-size:24px}
.price-label{font-family:var(--serif);font-size:32px;color:var(--gold-deep)}
.pricing-card p{margin:0;font-size:14px;color:var(--muted);flex:1}
.pricing-card .gold-button{display:inline-flex;justify-content:center;padding:12px 18px;border-radius:999px;background:var(--ink);color:#fff;text-decoration:none;font-weight:600;font-size:14px}
.pricing-card .gold-button:hover{background:var(--gold)}
.price-table-scroll{overflow-x:auto;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius)}
.price-print-table{width:100%;border-collapse:collapse;font-size:14px}
.price-print-table th,.price-print-table td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
.price-print-table thead th{color:var(--gold);font-size:12px;letter-spacing:.1em;text-transform:uppercase}
.price-original{margin-top:22px;background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:14px 18px}
.price-original summary{cursor:pointer;font-weight:600}
.price-original img{border-radius:12px;margin-top:12px;max-height:520px;width:auto}
.price-original a{text-decoration:none;color:var(--gold-deep)}

/* Quy trình */
.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.steps li{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px}
.steps span{display:grid;place-items:center;width:46px;height:46px;border-radius:50%;background:var(--gold-light);color:var(--night);font-weight:600;margin-bottom:18px}
.steps h3{margin-bottom:8px}
.steps p{margin:0;color:var(--muted);font-size:14px}

/* Cảm nhận */
.feedback{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding-top:0}
.feedback p{color:var(--muted);margin:18px 0 26px}
.feedback blockquote{margin:0;position:relative;background:var(--paper);border:1px solid var(--line);border-radius:28px;padding:56px 40px 36px;font-family:var(--serif);font-size:26px;line-height:1.35;font-style:italic;color:var(--ink-2)}
.feedback blockquote>span{position:absolute;top:-12px;left:32px;font-size:96px;color:var(--gold);line-height:1}
.feedback cite{display:block;margin-top:22px;font:600 12px/1 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--gold);font-style:normal}

/* Đặt lịch & liên hệ */
.booking{background:var(--sand)}
.booking-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.booking-grid>div>p{color:var(--ink-2);margin:18px 0 28px}
.contact-list{margin:0;display:grid;gap:14px}
.contact-list div{background:var(--paper);border-radius:18px;padding:16px 20px;border:1px solid var(--line)}
.contact-list dt{font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--gold)}
.contact-list dd{margin:6px 0 0;font-weight:500}
.contact-list a{color:var(--gold-deep)}
.booking-card{background:var(--night);color:#d9cfbf;border-radius:28px;padding:40px 34px;display:flex;flex-direction:column;gap:14px;box-shadow:var(--shadow)}
.booking-card .logo-mark{background:var(--gold-light);width:72px;height:48px}
.booking-card h3{color:#fff;font-size:30px}
.booking-grid .booking-card p{margin:0 0 8px;font-size:15px;color:#d9cfbf}

/* Hỏi đáp */
.faq-list{max-width:820px;margin:0 auto;display:grid;gap:12px}
.faq-list details{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:0 22px}
.faq-list summary{cursor:pointer;list-style:none;padding:20px 32px 20px 0;font-weight:600;position:relative}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:"+";position:absolute;right:0;top:14px;font-size:26px;color:var(--gold);transition:transform .2s}
.faq-list details[open] summary::after{transform:rotate(45deg)}
.faq-list p{margin:0 0 20px;color:var(--muted)}

/* Footer */
.site-footer{background:var(--night);color:#b9ad9a;padding:72px 0 28px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.site-footer .logo{align-items:flex-start}
.site-footer .logo-mark{background:var(--gold-light)}
.site-footer .logo-name{background:var(--gold)}
.site-footer h4{color:#fff;font:600 13px/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;margin:0 0 16px}
.site-footer a,.site-footer span{display:block;margin-bottom:9px;text-decoration:none}
.site-footer a:hover{color:var(--gold-light)}
.copyright{border-top:1px solid rgba(255,255,255,.1);margin-top:44px;padding-top:22px;font-size:12px}

/* Nút liên hệ nổi */
.float-contact{position:fixed;right:18px;bottom:18px;z-index:60;display:flex;flex-direction:column;gap:10px}
.float-contact a{display:grid;place-items:center;width:50px;height:50px;border-radius:50%;text-decoration:none;font-weight:700;font-size:13px;box-shadow:0 12px 26px -10px rgba(0,0,0,.45)}
.float-zalo{background:#0068ff;color:#fff}
.float-call{background:var(--gold);color:#fff;font-size:20px!important}

/* Xem bộ ảnh */
.lightbox{width:min(980px,100%);max-height:100%;padding:0;border:0;border-radius:24px;background:var(--night);color:#fff;overflow:hidden}
.lightbox::backdrop{background:rgba(20,17,14,.82)}
.lb-head,.lb-foot{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:16px 20px}
.lb-head b{font-family:var(--serif);font-size:22px;font-weight:500;margin-right:10px}
.lb-head small,.lb-foot span{color:#b9ad9a;font-size:13px}
.lb-head button{border:0;background:rgba(255,255,255,.1);color:#fff;width:40px;height:40px;border-radius:50%;font-size:16px;cursor:pointer}
.lb-stage{position:relative;display:grid;place-items:center;height:min(68vh,720px);background:#000}
.lb-stage img{max-height:min(68vh,720px);max-width:100%;width:auto;height:auto;object-fit:contain}
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;border:0;background:rgba(255,255,255,.14);color:#fff;font-size:30px;line-height:1;cursor:pointer}
.lb-nav:disabled{opacity:.25;cursor:default}
#lbPrev{left:14px}#lbNext{right:14px}

/* Máy tính bảng */
@media (max-width:1024px){
  .services,.concepts{grid-template-columns:repeat(3,1fr)}
  .main-nav{gap:18px}
  .hero{gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
/* Điện thoại */
@media (max-width:820px){
  .shell{width:calc(100% - 32px)}
  .menu-toggle{display:flex;margin-left:auto}
  .header-cta{display:none}
  .main-nav{position:absolute;left:0;right:0;top:100%;flex-direction:column;gap:0;background:var(--cream);border-bottom:1px solid var(--line);padding:8px 16px 18px;box-shadow:var(--shadow);visibility:hidden;opacity:0;transform:translateY(-10px);transition:opacity .25s,transform .25s,visibility .25s}
  .main-nav.open{visibility:visible;opacity:1;transform:none}
  .main-nav a{padding:14px 4px;border-bottom:1px solid var(--line);font-size:17px}
  .menu-toggle[aria-expanded="true"] span:first-child{transform:translateY(4px) rotate(45deg)}
  .menu-toggle[aria-expanded="true"] span:last-child{transform:translateY(-4px) rotate(-45deg)}
  .header-row{height:66px}
  .logo-mark{width:54px;height:36px}
  .logo-name{width:66px;height:16px;-webkit-mask-size:72px 41px;mask-size:72px 41px;-webkit-mask-position:center -21px;mask-position:center -21px}
  .hero{grid-template-columns:1fr;padding:36px 0 56px}
  .hero-visual{order:-1;width:min(100%,380px)}
  .hero-badge{left:-6px;bottom:24px}
  .hero-seal{right:-6px;top:18px;width:92px;height:92px}
  .hero-seal .logo-mark{width:46px;height:30px}
  .hero-facts{gap:12px}
  .hero-facts dt{font-size:30px}
  .section{padding:72px 0}
  .section-head.split{grid-template-columns:1fr;gap:16px}
  .services,.concepts{grid-template-columns:1fr 1fr;gap:12px}
  .service-body{padding:14px 14px 16px}
  .service h3{font-size:18px}
  .service p{font-size:13px}
  .service .num{font-size:22px;right:12px;top:10px}
  .service-cta{grid-column:1/-1}
  .why{padding:72px 0}
  .why-grid{grid-template-columns:1fr;gap:44px}
  .why-stamp{right:8px;width:112px;height:112px;font-size:15px}
  .reasons{grid-template-columns:1fr}
  .chips{flex-wrap:nowrap;overflow-x:auto;margin-inline:-16px;padding:2px 16px 8px;scrollbar-width:none;-webkit-overflow-scrolling:touch}
  .chips::-webkit-scrollbar{display:none}
  .chip,.price-tabs button{flex:none}
  .price-tabs{flex-wrap:nowrap;overflow-x:auto;margin-inline:-16px;padding:2px 16px 8px;scrollbar-width:none}
  .concept-meta b{font-size:18px}
  .concept-meta>span:last-child{display:none}
  .film{aspect-ratio:16/10;margin-top:44px}
  .film-label{left:12px;right:12px;bottom:12px}
  .steps{grid-template-columns:1fr 1fr;gap:12px}
  .steps li{padding:20px 16px}
  .feedback,.booking-grid{grid-template-columns:1fr;gap:32px}
  .feedback blockquote{font-size:21px;padding:48px 26px 28px}
  .booking-card{padding:30px 24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .lightbox{border-radius:0;height:100%}
  .lb-stage{height:calc(100vh - 150px)}.lb-stage img{max-height:calc(100vh - 150px)}
  .lb-foot{flex-direction:column;align-items:stretch;text-align:center}
}
@media (max-width:420px){
  .hero-facts dd{font-size:12px}
  .steps{grid-template-columns:1fr}
}

/* Hiện dần khi cuộn (lớp do home-v2.js gắn) */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
.service.reveal.in{transition:opacity .7s ease,transform .25s ease,box-shadow .25s}
.service.reveal.in:hover{transform:translateY(-4px)}