/* Shared sizing: the former 120% desktop scale, expressed in layout units. */
:root{font-size:19.2px;--navy:#0b1628;--cyan:#75e5ee;--ink:#172c43;--muted:#526578;--paper:#f3f6f9;--gutter:max(6%,calc((100% - 1680px)/2));--overlay:linear-gradient(90deg,rgba(245,248,252,.97),rgba(245,248,252,.90) 43%,rgba(245,248,252,.16) 85%)}
*{box-sizing:border-box}body{margin:0;font-family:'Noto Sans KR','Malgun Gothic',Arial,sans-serif;color:var(--navy);line-height:1.75}h1,h2,h3,h4,p{margin:0}h1,h2,h3{line-height:1.35;letter-spacing:-.04em;word-break:keep-all}p{word-break:keep-all;overflow-wrap:anywhere}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a,input,select,textarea{outline-offset:5px}a:focus-visible,button:focus-visible{outline:3px solid #167589}button{cursor:pointer}img{max-width:100%;display:block}html{scroll-behavior:smooth;scroll-padding-top:7rem}.skip{position:fixed;top:-100px;left:20px;z-index:30;background:white;padding:10px}.skip:focus{top:10px}.header{display:flex;justify-content:space-between;align-items:center;gap:2rem;padding:1.1rem var(--gutter);background:white;border-bottom:1px solid #dce2e9;position:sticky;top:0;z-index:10}.brand{font-size:2rem;font-weight:800;letter-spacing:-.075em;line-height:1.1;flex-shrink:0}.brand span{display:block;font-size:.625rem;letter-spacing:.12em;font-weight:500;margin-top:.5rem}.header nav{display:flex;gap:1.5rem;align-items:center;flex-wrap:wrap;justify-content:flex-end;font-size:.82rem;font-weight:600}.header nav a[aria-current=page]{color:#167589;border-bottom:2px solid #167589}.nav-contact{border:1px solid var(--navy);padding:.6rem .9rem}.eyebrow{font-size:.75rem;font-weight:600;letter-spacing:.12em;color:#42718a;margin-bottom:1.375rem}.section{padding:4.7rem var(--gutter)}.button{display:inline-flex;align-items:center;justify-content:center;padding:.9rem 1.25rem;font-size:.875rem;font-weight:700;border:1px solid transparent}.primary{background:var(--cyan);color:var(--navy)}.primary:hover{background:#a3eff5}
/* Homepage carousel */
.hero-carousel{position:relative;background:var(--navy);color:white}.hero{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.25fr);padding-left:var(--gutter);min-height:37.5rem}.hero-slide[hidden]{display:none}.hero-copy{padding:4rem 2rem 5.5rem 0;display:flex;flex-direction:column;justify-content:center;min-width:0}.hero .eyebrow{color:var(--cyan)}.hero h1,.hero-title{font-size:clamp(1.35rem,1.9vw,2rem);line-height:1.6}.hero-description{font-size:1.08rem;color:#bdcbdc;margin:1.7rem 0 2rem;line-height:1.85}.hero-visual{position:relative;min-width:0;overflow:hidden;min-height:37.5rem;isolation:isolate}.hero-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:right center;z-index:0;mask-image:linear-gradient(90deg,transparent,#000 12%)}.visual-caption{position:absolute;z-index:1;text-shadow:0 1px 3px #0b1628,0 0 8px #0b1628;left:1.25rem;right:1.25rem;bottom:1.25rem;display:flex;justify-content:space-between;gap:1rem;border-top:1px solid #ffffff40;padding-top:.75rem;font-size:.65rem;color:#e1eaf2}.carousel-controls{position:absolute;bottom:1rem;left:var(--gutter);display:flex;gap:.625rem}.carousel-controls button{font-size:.75rem;color:#bdcbdc;border:1px solid #576479;background:transparent;padding:.35rem .75rem}.carousel-controls button[aria-pressed=true]{background:var(--cyan);color:var(--navy);border-color:var(--cyan)}
/* Four service pages use one consistent frame. */
.materials-page #materials,.prototype-support,.process-support,.applied-products{position:relative;min-height:62.5rem;height:auto;padding-top:5.3rem;padding-bottom:5rem;background-position:center;background-size:cover;background-repeat:no-repeat;background-color:var(--paper)}
.materials-page #materials{background-image:var(--overlay),url("assets/material-specimens.webp")}.prototype-support{background-image:var(--overlay),url("assets/prototype-concept.webp")}.process-support{background-image:var(--overlay),url("assets/process-final.webp")}.applied-products{background-image:var(--overlay),url("assets/products-concept.webp")}
.material-intro,.prototype-copy{max-width:53rem}.section h1{font-size:2.5rem;font-weight:700}.material-intro>p:not(.eyebrow),.prototype-lead,.process-lead,.products-lead{font-size:1.25rem;line-height:1.8;margin-top:1.625rem;max-width:53rem}.intro-sentence{display:block}.material-development-process,.print-methods,.process-equipment-list,.applied-product-list{max-width:43.75rem;width:100%;border-top:1px solid #8998a9;margin-top:2rem;padding-top:1.625rem}.process-row{display:grid;grid-template-columns:1.5625rem minmax(0,1fr);gap:1.125rem;margin-bottom:1.75rem}.process-title h3,.print-methods dt,.process-equipment-row h3,.applied-product-row h3{font-size:1.0625rem;font-weight:700}.step,.method-step{font-size:1.125rem;font-weight:700;color:#2d627c;line-height:1.5}.detailed-tag,.method-english,.process-english,.product-english{display:block;color:#426780;font-size:.8125rem;line-height:1.6;font-weight:500;margin-top:.3125rem}.process-row p,.print-methods dd,.process-detail,.product-detail{font-size:.9375rem;line-height:1.85;margin-top:.5625rem;color:#20364d}.print-methods dl{margin:0}.print-methods dl>div{display:grid;grid-template-columns:1.5625rem minmax(0,1fr);column-gap:1.125rem;margin-bottom:1.875rem}.print-methods dd{grid-column:2;margin-left:0}.method-title{font-weight:700}.process-equipment-row,.applied-product-row{display:grid;grid-template-columns:1.5625rem minmax(0,1fr);gap:1.125rem;margin-bottom:1.875rem}.material-image-caption,.prototype-image-caption,.process-image-caption,.products-image-caption{position:absolute;bottom:1.5rem;right:6%;font-size:.75rem;color:#d3dfeb}
/* Company */
.about-intro{background:linear-gradient(90deg,rgba(245,248,252,.97),rgba(245,248,252,.93) 42%,rgba(245,248,252,.55)),url("assets/prototype-concept.webp") center/cover}.about-page h2{font-size:2rem;margin-bottom:2rem}.about-page h3{font-size:1.125rem}.about-lead{font-size:1.5rem;line-height:1.7;margin-top:1.625rem}.about-summary{max-width:69rem;font-size:1.125rem;line-height:1.9;margin-top:1.5rem;color:#33475e}.about-facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1.5rem;margin-top:3.4rem;border-top:1px solid #aab7c5;padding-top:2rem}.about-facts>div{padding:1.375rem 1.125rem;background:#ffffffad}.about-facts h3{font-size:1.0625rem}.about-fact-key{font-size:.875rem;color:#2d627c;margin-top:.75rem;font-weight:600}.about-tinted{background:var(--paper)}.about-two{display:grid;grid-template-columns:1fr 1fr;gap:4rem;margin-top:2.25rem}.about-history{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.4rem 2.5rem}.about-row{border-top:1px solid #d0d9e3;padding:1.375rem 0}.about-row h3{color:#2d627c}.about-row p{margin-top:.75rem;font-size:.9375rem;line-height:1.9;color:#33475e}.about-note{font-size:.8125rem;color:#657487;margin-top:1.625rem}.about-partners{margin-top:3.4rem}.partner-group{margin-top:1.625rem}.partner-group h4{font-size:.9375rem;color:#2d627c;margin-bottom:.9375rem}.partner-group ul{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.875rem}.partner-group li{padding:1.25rem;background:var(--paper);border:1px solid #dce2e9;font-size:.9375rem;font-weight:600;overflow-wrap:anywhere}
/* Contact */
.inquiry{background:#eef0f3;display:grid;grid-template-columns:1fr 1.2fr;gap:5rem}.inquiry h2{font-size:clamp(1.8rem,3vw,2.75rem)}.inquiry-intro{color:#46566b;margin-top:1.5rem}.contact{display:flex;flex-direction:column;gap:.3125rem;margin-top:2rem}.contact a{font-size:1.25rem;overflow-wrap:anywhere}.inquiry-note,.form-hint{font-size:.8125rem;color:#627187;margin-top:1.25rem}.inquiry label{display:block;font-size:.875rem;color:#33475e;margin-bottom:1.25rem}input,select,textarea{width:100%;max-width:100%;background:white;color:var(--navy);border:1px solid #bbc5d1;min-height:3rem;padding:.75rem;margin-top:.5rem;border-radius:0}input::placeholder,textarea::placeholder{color:#718095}textarea{resize:vertical}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1.125rem}.form-actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.25rem}.copy-inquiry{background:white;border-color:#bbc5d1}.form-status{font-size:.875rem;color:#166b7b;margin-top:.75rem}.honeypot{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}.button:disabled{opacity:.6;cursor:wait}footer{padding:3rem var(--gutter) 1.375rem;display:grid;grid-template-columns:1fr 1fr;gap:2rem}footer p{font-size:.8125rem;color:#5b6677;margin-top:.75rem}.footer-bottom{grid-column:1/-1;border-top:1px solid #dce2e9;padding-top:1.375rem;display:flex;justify-content:space-between;gap:1rem;font-size:.75rem;color:#7a8797}
@media(max-width:1350px){.header{gap:1.5rem}.header nav{gap:.85rem;font-size:.75rem}.about-facts{grid-template-columns:repeat(2,minmax(0,1fr))}.inquiry{gap:2.5rem}.hero h1,.hero-title{font-size:1.4rem}.hero-description{font-size:1rem}}
@media(max-width:1100px){.header{position:relative;flex-wrap:wrap}.header nav{justify-content:flex-start}.hero{grid-template-columns:1fr;padding:0}.hero-copy{padding:3rem 6% 2rem;min-height:0}.hero h1,.hero-title{font-size:1.65rem}.hero-visual{min-height:0;aspect-ratio:3/2;mask-image:none}.hero-visual img{object-fit:contain;mask-image:none}.carousel-controls{position:static;padding:1rem 6%;background:var(--navy)}.hero-description{margin:1.2rem 0 1.5rem}.materials-page #materials,.prototype-support,.process-support,.applied-products{min-height:0;padding-bottom:5rem;background-position:right center;--overlay:linear-gradient(90deg,rgba(245,248,252,.97),rgba(245,248,252,.91))}.about-two{gap:2rem}.inquiry{grid-template-columns:1fr}.about-history{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){:root{font-size:16px;--gutter:6%}.header nav{gap:.8rem;font-size:.8rem}.header{padding-top:1rem;padding-bottom:1rem}.brand{font-size:2rem}.section{padding-top:3.4rem;padding-bottom:3.4rem}.section h1{font-size:1.8rem}.hero h1,.hero-title{font-size:clamp(1.1rem,4.3vw,1.65rem)}.hero-description{font-size:1.0625rem}.visual-caption{font-size:.6rem;bottom:.7rem}.material-intro>p:not(.eyebrow),.prototype-lead,.process-lead,.products-lead{font-size:1.125rem}.about-facts,.about-history,.about-two{grid-template-columns:1fr}.about-page h2{font-size:1.65rem}.about-lead{font-size:1.25rem}.about-summary{font-size:1rem}.partner-group ul{grid-template-columns:1fr}.form-row{grid-template-columns:1fr;gap:0}footer{grid-template-columns:1fr}.footer-bottom{flex-wrap:wrap}.hero .eyebrow{font-size:.65rem;letter-spacing:.08em}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{.header,.carousel-controls,.inquiry{display:none}:root{font-size:16px}.section{min-height:0!important;background:white!important}}

/* Header symbol and name share the original first line; tagline stays below. */
.header .brand-wordmark{display:flex;align-items:center;gap:.2em;line-height:1.1}
.header .brand-logo{width:1em;height:1em;object-fit:contain;flex-shrink:0}


/* Native disclosure works with mouse, touch, Enter and Space without JavaScript. */
.company-menu{position:relative}
.company-menu summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:.45rem;padding:.4rem 0}
.company-menu summary::-webkit-details-marker{display:none}
.company-menu summary::after{content:'';width:.35rem;height:.35rem;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg);margin-top:-.2rem}
.company-menu[open] summary::after{transform:rotate(225deg);margin-top:.2rem}
.company-menu summary:focus-visible{outline:3px solid #167589;outline-offset:5px}
.company-menu-current summary{color:#167589}
.company-submenu{position:absolute;top:100%;left:0;z-index:20;min-width:14rem;padding:.5rem;background:white;border:1px solid #dce2e9;box-shadow:0 10px 25px #0b16281a}
.company-submenu a{display:block;padding:.65rem .8rem;white-space:nowrap}
.company-submenu a:hover,.company-submenu a:focus-visible{background:var(--paper)}
.header nav .company-submenu a[aria-current=page]{border-bottom:0;background:var(--paper)}
.about-page .leader-name{margin:1.5rem 0 0;font-size:1.5rem}
@media(max-width:480px){.company-submenu{min-width:0;width:calc(100vw - 12vw);max-width:18rem}.company-submenu a{white-space:normal}}

.applied-products.lightweight-products{background-image:var(--overlay),url("assets/material-specimens.webp")}
.product-detail-actions{margin-top:2rem}
@media(max-width:760px){.product-menu .company-submenu{left:0;right:auto;min-width:0;width:min(12rem,60vw)}}

.applied-products.earplugs-product{background-image:var(--overlay),url("assets/earplugs-concept.webp")}.applied-products.shadow-masks-product{background-image:var(--overlay),url("assets/shadow-masks-concept.webp")}