/* UIFU Tightan Max page. Built from the site's tokens (noir.css) and the Dịch vụ page patterns. */
body.ufp{background:var(--ivory);color:var(--ink)}
.ufp-p{margin:0 0 18px;max-width:58ch;font-size:16px;line-height:1.7;color:var(--body);text-align:left}
.svx-k{margin:0 0 14px;font:400 11px/1 var(--sans);letter-spacing:.2em;text-transform:uppercase;color:var(--brand-d)}
.ufs{padding:clamp(64px,8vw,112px) 0}
.ufs h2,.ufx h2{font:300 var(--t-title)/1.16 var(--serif);letter-spacing:-.012em;margin:0 0 22px}
.ufs h2 em{color:var(--em)}

/* hero */
.ufh{position:relative;min-height:clamp(520px,82svh,740px);display:flex;align-items:center;color:var(--ivory);background:#05112B;overflow:hidden}
.ufh .wrap{width:100%;max-width:1160px;padding-top:128px;padding-bottom:72px;position:relative;z-index:2}
.ufh-ph{position:absolute;inset:0 0 0 38%;background:url(../assets/img/uifu/tightan-handpiece.webp) 50% 35%/cover no-repeat;-webkit-mask-image:linear-gradient(90deg,transparent 0,rgba(0,0,0,.4) 7%,rgba(0,0,0,.85) 16%,#000 28%);mask-image:linear-gradient(90deg,transparent 0,rgba(0,0,0,.4) 7%,rgba(0,0,0,.85) 16%,#000 28%)}
.ufh-t{max-width:560px}
.ufh .eyebrow{margin:0 0 20px;color:rgba(243,248,250,.8);opacity:1}
.ufh h1{font:300 clamp(36px,4.4vw,64px)/1.16 var(--serif);letter-spacing:-.014em;margin:0}
.ufh h1 em{display:block;color:var(--rose);font-style:italic}
.ufh-p{margin:22px 0 0;max-width:420px;font-size:16px;line-height:1.7;color:rgba(243,248,250,.86);text-align:left}
.ufh .o1cta{margin-top:30px}

/* intro */
.ufi-g{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:clamp(32px,6vw,96px);align-items:center}
.ufi-ph{position:relative;margin:0;width:100%;aspect-ratio:4/5;max-height:700px;display:flex;align-items:flex-end;justify-content:center;background:radial-gradient(closest-side at 50% 46%,rgba(255,255,255,.95) 0,rgba(226,237,243,.55) 62%,rgba(226,237,243,0) 100%)}
.ufi-ph::after{content:"";position:absolute;left:18%;right:18%;bottom:-6px;height:34px;background:radial-gradient(closest-side,rgba(10,26,50,.28),rgba(10,26,50,0));filter:blur(4px)}
.ufi-ph img{position:relative;z-index:1;height:94%;width:auto;max-width:100%;object-fit:contain}
.ufi-b{display:grid;gap:26px;margin-top:10px}
.ufi-b h3{margin:0 0 10px;font:500 18px/1.35 var(--sans);letter-spacing:-.005em;color:var(--ink)}
.ufi-b>div{padding-top:20px;border-top:1px solid var(--lineD)}
.ufi-b ul{display:grid;gap:10px}
.ufi-b li{position:relative;padding-left:18px;font-size:15px;line-height:1.7;color:var(--body);text-align:left}
.ufi-b li::before{content:"";position:absolute;left:2px;top:.72em;width:5px;height:5px;border-radius:50%;background:var(--brand)}
.ufi-b strong{font-weight:500;color:var(--ink)}

/* key facts */
.uff{background:var(--mist);padding:clamp(40px,5vw,64px) 0}
.uff-g{display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.uff-g li{padding:6px clamp(16px,2.4vw,36px);border-left:1px solid var(--lineD);color:var(--brand-d)}
.uff-g svg{display:block}
.uff-g li:first-child{border-left:0;padding-left:0}
.uff-g h3{margin:16px 0 8px;font:500 16px/1.35 var(--sans);letter-spacing:0;color:var(--ink)}
.uff-g p{margin:0;font-size:14px;line-height:1.7;color:var(--body);text-align:left}

/* principle: text and the layer diagram */
.ufn-g{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:clamp(32px,6vw,96px);align-items:center}
.ufn .eyebrow{margin:0 0 18px;color:var(--brand-d);opacity:1}
.ufd{margin:0;border-radius:var(--r-card);overflow:hidden;background:radial-gradient(120% 90% at 50% 0%,#10284A 0,#0A1A32 70%);box-shadow:0 34px 50px -36px rgba(5,17,43,.7);padding:clamp(14px,2vw,26px)}
.ufd svg{display:block;width:100%;height:auto}
@media(prefers-reduced-motion:no-preference){
 .ufd-b{animation:ufb 3.6s ease-in-out infinite}.ufd-f{animation:ufb 3.6s ease-in-out infinite;transform-origin:center}
 @keyframes ufb{0%,100%{opacity:.55}50%{opacity:1}}
}

/* differences: handpiece photo as the background on the left, fading into navy, with the three core technologies at the right */
.ufx{padding:clamp(64px,8vw,112px) 0}
.ufx-g{display:grid;gap:clamp(32px,6vw,96px);align-items:center}
.ufx{position:relative;overflow:hidden}
.ufx-bg{position:absolute;inset:0 47% 0 0;background:url(../assets/img/uifu/tightan-hero.webp) 55% 30%/cover no-repeat;-webkit-mask-image:linear-gradient(90deg,#000 0,#000 42%,rgba(0,0,0,.5) 72%,transparent 100%);mask-image:linear-gradient(90deg,#000 0,#000 42%,rgba(0,0,0,.5) 72%,transparent 100%)}
.ufx-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,26,50,0) 0,rgba(10,26,50,.25) 100%)}
.ufx .wrap{position:relative;z-index:1}
.ufx-g{grid-template-columns:minmax(0,5fr) minmax(0,6fr)}
.ufx-tx{grid-column:2}
.ufx .eyebrow{margin:0 0 18px;color:var(--rose);opacity:1}
.ufx h2{margin:0 0 18px}.ufx h2 em{color:var(--rose)}
.ufx-s{margin:0 0 6px;font-size:16px;line-height:1.7;color:rgba(243,248,250,.86);text-align:left}
.ufx-l{margin-top:22px}
.ufx-l li{display:grid;grid-template-columns:48px minmax(0,1fr);gap:8px;padding:22px 0;border-top:1px solid rgba(243,248,250,.2)}
.ufx-l li:last-child{border-bottom:1px solid rgba(243,248,250,.2)}
.ufx-l b{font:300 34px/1 var(--sans);color:var(--rose)}
.ufx-l h3{margin:0 0 10px;font:500 var(--t-s)/1.35 var(--sans);letter-spacing:-.005em}
.ufx-l p{margin:0;font-size:15px;line-height:1.7;color:rgba(243,248,250,.82);text-align:left}

/* effect */
.ufe{background:var(--sand)}
.ufe-g h2,.ufe-g .ufe-tx{max-width:760px}
.ufe h2{margin:0 0 22px}

/* protocols */
.ufq-h{max-width:760px;margin-bottom:clamp(28px,4vw,48px)}
.ufq-h h2{margin:0 0 18px}.ufq-h .ufp-p{margin:0}
.ufq-g{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(16px,2.4vw,28px)}
.ufq-c{display:flex;flex-direction:column;align-items:flex-start;padding:clamp(24px,2.6vw,36px);border-radius:var(--r-card);background:#FAFCFD;border:1px solid var(--lineD)}
.ufq-c h3{margin:0 0 12px;font:300 var(--t-sub)/1.2 var(--serif);letter-spacing:-.01em}
.ufq-c p:not(.svx-k){margin:0;font-size:15px;line-height:1.7;color:var(--body);text-align:left}
.ufq-cta{margin-top:clamp(28px,3.4vw,44px)}

/* why BION */
.ufw{background:var(--mist)}
.ufw-h{max-width:720px;margin-bottom:clamp(28px,4vw,48px)}
.ufw-h h2{margin-bottom:14px}.ufw-h .ufp-p{margin:0}
.ufw-g{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(16px,2.2vw,28px)}
.ufw-c figure{margin:0 0 18px;aspect-ratio:4/3;border-radius:var(--r-card);overflow:hidden;background:var(--tint)}
.ufw-c img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--ease)}
.ufw-c:hover img{transform:scale(1.04)}
.ufw-c h3{margin:0 0 8px;font:500 var(--t-s)/1.35 var(--sans);letter-spacing:-.005em}
.ufw-c p{margin:0;font-size:14px;line-height:1.7;color:var(--body);text-align:left}

/* more */
.ufr-h{display:flex;justify-content:space-between;align-items:center;gap:20px 30px;flex-wrap:wrap}
.ufr h2{margin:0}
.ufr-l{margin-top:clamp(24px,3vw,40px);border-bottom:1px solid var(--lineD)}
.ufr-l a{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;padding:16px 2px;border-top:1px solid var(--lineD);font:500 18px/1.35 var(--sans);color:var(--ink);transition:color .25s,padding .35s var(--ease)}
.ufr-l a:hover{color:var(--brand);padding-left:10px}

@media(max-width:1024px){
 .ufw-g{grid-template-columns:repeat(2,minmax(0,1fr))}
 .uff-g{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:28px}
 .uff-g li:nth-child(3){border-left:0;padding-left:0}
 .ufq-g{grid-template-columns:1fr}
}
@media(max-width:900px){
 .ufh{min-height:0;align-items:flex-start}
 .ufh-ph{inset:auto 0 0 0;height:clamp(300px,74vw,480px);background-position:60% 30%;-webkit-mask-image:linear-gradient(180deg,transparent 0,rgba(0,0,0,.6) 22%,#000 46%);mask-image:linear-gradient(180deg,transparent 0,rgba(0,0,0,.6) 22%,#000 46%)}
 .ufh .wrap{padding-top:112px;padding-bottom:clamp(310px,78vw,500px)}
 .ufh-t{max-width:none}
 .ufi-g,.ufn-g,.ufx-g{grid-template-columns:1fr}
 .ufi-ph{max-width:420px;margin:0 auto}
}
@media(max-width:560px){
 .uff-g{grid-template-columns:1fr}
 .uff-g li,.uff-g li:nth-child(3){border-left:0;padding-left:0;padding-top:20px;border-top:1px solid var(--lineD)}
 .uff-g li:first-child{border-top:0;padding-top:0}
 .ufw-g{grid-template-columns:1fr}
}
@media(orientation:landscape) and (max-height:520px) and (min-width:560px){
 .ufh{min-height:0;align-items:center}
 .ufh-ph{inset:0 0 0 46%;height:auto;-webkit-mask-image:linear-gradient(90deg,transparent 0,#000 30%);mask-image:linear-gradient(90deg,transparent 0,#000 30%)}
 .ufh .wrap{padding-top:92px;padding-bottom:32px}.ufh h1{font-size:36px}.ufh-p{font-size:14px;margin-top:12px}
}

/* before and after posters */
.ufr2{background:var(--ivory)}
.ufr2-h{display:flex;justify-content:space-between;align-items:flex-end;gap:20px 30px;flex-wrap:wrap;margin-bottom:clamp(26px,3.4vw,44px)}
.ufr2-h h2{margin:0 0 14px}.ufr2-h .ufp-p{margin:0}
.ufr2-g{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(16px,2.4vw,32px)}
.ufr2-m{display:flex;flex-direction:column;justify-content:space-between;align-items:flex-start;aspect-ratio:4/5;padding:clamp(24px,2.6vw,40px);border-radius:var(--r-card);background:var(--ink);color:var(--ivory);transition:background .3s}
.ufr2-m:hover{background:#10284A}
.ufr2-m .svx-k{color:var(--rose)}
.ufr2-t{font:300 var(--t-sub)/1.2 var(--serif);letter-spacing:-.012em;max-width:12ch}
.ufr2-a{display:inline-flex;width:48px;height:48px;border-radius:50%;border:1px solid rgba(243,248,250,.4);align-items:center;justify-content:center;transition:background .3s,color .3s}
.ufr2-m:hover .ufr2-a{background:var(--ivory);color:var(--ink)}
.ufr2-b{display:block;padding:0;border:0;border-radius:var(--r-card);overflow:hidden;background:var(--tint);cursor:zoom-in;box-shadow:0 30px 50px -36px rgba(10,26,50,.55)}
.ufr2-b img{width:100%;height:auto;aspect-ratio:4/5;object-fit:cover;transition:transform 1s var(--ease)}
.ufr2-b:hover img{transform:scale(1.03)}
.ufr2-b:focus-visible{outline:2px solid var(--brand);outline-offset:4px}
.uf-lb{border:0;padding:0;background:transparent;max-width:min(92vw,720px);max-height:92vh;overflow:visible}
.uf-lb::backdrop{background:rgba(6,16,30,.9)}
.uf-lb img{display:block;max-width:100%;max-height:88vh;margin:0 auto;border-radius:var(--r-sm)}
.uf-lb button{position:absolute;top:-44px;right:0;width:40px;height:40px;border-radius:50%;border:1px solid rgba(243,248,250,.4);background:transparent;color:var(--ivory);font-size:20px;line-height:1;cursor:pointer}
@media(max-width:900px){
 .ufx-bg{inset:0 0 auto 0;height:clamp(240px,60vw,380px);-webkit-mask-image:linear-gradient(180deg,#000 0,#000 50%,transparent 100%);mask-image:linear-gradient(180deg,#000 0,#000 50%,transparent 100%)}
 .ufx-bg::after{background:linear-gradient(180deg,rgba(10,26,50,0) 0,rgba(10,26,50,.2) 100%)}
 .ufx{padding-top:calc(clamp(240px,60vw,380px) - 36px)}
 .ufx-tx{grid-column:1}
 .ufx-g{grid-template-columns:1fr}
 .ufr2-g{grid-template-columns:1fr 1fr}.ufr2-m{grid-column:1/-1;aspect-ratio:auto;min-height:150px;gap:18px}
}
@media(max-width:560px){.ufr2-g{gap:12px}}