/* Mobile architectural journal. Desktop composition is defined in triza.css. */
@media(max-width:900px){
 :root{--hero:clamp(28px,8.2vw,34px);--heading:clamp(26px,7.2vw,32px);--lead:16px;--body:14px;--card:18px;--label:12px;--button:15px;--mobile-gap:22px}
 .section .shell{width:100%;max-width:720px;padding:42px 20px;min-height:0}
 .section{overflow:clip}.section h1{line-height:1.1;letter-spacing:-.035em}.section h2{line-height:1.16;letter-spacing:-.03em}.section h3{line-height:1.25;letter-spacing:-.015em}
 .section .intro h2 br{display:none}.section .lead{line-height:1.5;margin-top:16px}.section p[data-type=body]{line-height:1.5}
 .section .eyebrow{font-size:10px;font-weight:700;letter-spacing:.1em;margin-bottom:16px;display:flex;align-items:center;gap:10px;line-height:1.5}
 .section .eyebrow:before{content:'';display:block;width:22px;height:2px;flex:0 0 22px;background:currentColor}
 .section .button{min-height:48px;padding:13px 16px;gap:14px;font-size:15px;border-radius:9px;max-width:100%;line-height:1.3}
 .section .button span{flex:none}.section .icon{width:42px;height:42px;flex-basis:42px}
 .section .info-card{padding:18px;border-radius:14px}.section .info-card p{margin-top:10px}
 .section .cta-strip{display:grid;grid-template-columns:42px minmax(0,1fr);gap:14px;margin-top:24px;padding:20px;border-radius:16px;background:#fff4ed;border-color:#f1d6c7}
 .section .cta-strip>.icon{width:42px;height:48px;flex-basis:42px}.section .cta-strip>.button{grid-column:1/-1;max-width:none;width:100%}.cta-strip p{margin-top:8px}
 .section .small-note{padding:16px;gap:12px;font-size:13px}.small-note>.icon{width:36px;height:36px;flex-basis:36px}
 .section .notice{margin-top:22px;padding:18px;gap:12px;border-left:3px solid var(--orange);border-radius:4px 14px 14px 4px}.notice>.icon{width:32px;height:36px;flex-basis:32px}.notice>div{min-width:0}
 .check-list{gap:12px;margin-top:16px}.mobile-flow{display:contents}
 /* Hero: typography, architectural image, then a clear action and proof. */
 .s1 .shell{display:flex;flex-direction:column;align-items:stretch;gap:0;background:none;padding-top:26px;padding-bottom:30px}
 .hero-copy{display:contents}.hero-copy>.eyebrow{order:1}.hero-copy>h1{order:2}.hero-mobile{display:block;order:3;width:100%;height:auto;aspect-ratio:1.32;object-fit:cover;object-position:center 46%;border-radius:18px;margin:22px 0 0}
 .hero-copy>.lead{order:4;margin-top:18px}.hero-actions{order:5;display:grid;gap:9px;margin-top:20px}.hero-actions .button{width:100%}
 .hero-benefits{order:6;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:22px}.hero-benefits>div{display:flex;flex-direction:column;text-align:center;gap:8px;font-size:11px;padding:8px 3px;min-width:0}.hero-benefits .icon{width:32px;height:32px;flex-basis:32px}
 .other-directions{order:7;margin-top:18px;gap:10px 14px;padding:15px 0 0;border:0;border-top:1px solid var(--line);border-radius:0;font-size:12px}.other-directions b{color:var(--muted)}.other-directions a{padding:6px 0}
 /* Cutaway is read before the explanation of layers. */
 .s2 .shell{display:flex;flex-direction:column;gap:20px}.s2 .intro{order:1}.s2 .cutaway{order:2;max-height:440px;border-radius:18px;background:#edf0f5}.s2 .notice{order:3;margin:0;background:white}.s2 .tech-benefits{order:4;margin:0;gap:8px}
 .tech-benefits>div{display:flex;flex-direction:column;align-items:flex-start;font-size:12px;gap:9px;border-top:1px solid #cdd6e2;padding:14px 0 0;min-width:0}.tech-benefits .icon{width:34px;height:34px;flex-basis:34px}
 /* Five reasons, then four illustrated construction stages. */
 .s3 .shell{display:block}.advantages-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 16px;margin-top:26px}.advantages-grid .info-card{padding:0;border:0;border-radius:0;background:none}.advantages-grid h3{font-size:16px}.advantages-grid p{font-size:13px!important}.advantages-grid .icon{width:36px;height:36px;margin-bottom:10px}
 .advantages-grid .info-card:first-child{grid-column:1/-1;display:grid;grid-template-columns:42px 1fr;gap:0 14px;background:#fff2e9;padding:18px;border-radius:14px}.advantages-grid .info-card:first-child .icon{grid-row:1/3;margin:0}.advantages-grid .info-card:first-child p{grid-column:2}
 .construction-sequence{margin-top:28px;padding:16px;border-radius:18px;background:#eef2f6;border:0;min-width:0}.sequence-grid article{border-radius:12px;background:#fff;padding:10px;min-width:0}.sequence-grid article>img{width:100%;height:auto;aspect-ratio:1.35;object-fit:cover;border-radius:9px}.sequence-grid .number{margin:14px 0 9px;width:26px;height:26px;font-size:13px}.sequence-grid h3{font-size:18px;overflow-wrap:normal}.sequence-grid article>p{margin-top:9px}.next-link{gap:15px;margin-top:14px;font-size:12px}
 /* Local horizontal rails keep complete text and reveal the next card. */
 [data-mobile-rail]{display:grid;grid-auto-flow:column;grid-template-columns:none;grid-auto-columns:88%;gap:12px;overflow-x:auto;overflow-y:hidden;scroll-snap-type:x mandatory;scroll-padding-left:0;overscroll-behavior-x:contain;scrollbar-width:thin;scrollbar-color:#a9b6c7 transparent;padding:0 0 10px;margin:0;width:100%;min-width:0}
 [data-mobile-rail]>article{scroll-snap-align:start;scroll-snap-stop:always;min-width:0;max-width:none;flex:none}
 .mobile-rail-tools{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:12px;grid-column:1/-1}.mobile-rail-tools>div{display:flex;align-items:center;gap:8px;flex:none}.rail-hint{font-size:11px;color:var(--muted);max-width:50%}.rail-count{font-size:12px;font-variant-numeric:tabular-nums;min-width:30px;text-align:center}
 .mobile-rail-tools button{display:grid;place-items:center;width:44px;height:44px;border:1px solid #cad3de;background:#fff;color:var(--ink);border-radius:50%;font-size:21px;padding:0}.mobile-rail-tools button:disabled{opacity:.35;cursor:default}
 .mobile-rail-tabs{display:flex;flex-wrap:wrap;gap:7px;margin:20px 0 14px}.mobile-rail-tabs button{border:1px solid #d9e0e9;border-radius:20px;background:white;color:var(--ink);font-size:13px;min-height:44px;padding:9px 13px}.mobile-rail-tabs button[aria-pressed=true]{background:var(--ink);color:white;border-color:var(--ink)}
 .s4 .shell{display:block}.comparison-note{margin-top:18px;padding:13px 15px;font-size:12px;border-left:3px solid var(--orange);background:#fff;border-radius:4px 10px 10px 4px}
 .comparison-grid>article{padding:18px;background:white;border-radius:16px}.comparison-grid>article>img{height:135px}.comparison-grid>article>h3{font-size:22px;margin:10px 0}.comparison-point{gap:10px;margin-top:14px;padding-top:14px;font-size:14px}.comparison-point>span{font-size:22px}.comparison-point>div{min-width:0}.comparison-point:last-child{background:#fff3e9;margin:14px -8px -8px;padding:14px 8px;border-radius:10px;border-top:0}
 .comparison-bottom{display:block;margin-top:24px}.timing{padding:18px;background:#edf1f6;border:0}.timing>div{grid-template-columns:1fr 1fr;gap:18px 14px}.timing p{font-size:13px!important}.timing .icon{width:30px;height:30px}.comparison-cta{margin-top:16px;padding:20px}.comparison-cta .button{width:100%}
 /* Building typologies retain their individual source images and icons. */
 .object-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:24px}.object-grid>article{display:block;min-width:0;padding:0;border-radius:14px;overflow:hidden;box-shadow:0 5px 15px #152c480a}
 .object-grid article>img{width:100%;height:auto;aspect-ratio:1.2;min-height:0;object-fit:cover;border-radius:0}.object-grid article>div{padding:12px}.object-grid .icon{display:block;width:27px;height:27px;margin-bottom:8px}.object-grid h3{font-size:16px}.object-grid p{font-size:13px!important;margin-top:8px}
 /* Engineering route: ordered steps, illustration beside each explanation. */
 .blue-section{background:#eff4fb!important}.services-grid{display:grid;grid-template-columns:1fr;gap:0;margin-top:26px;padding-left:13px;border-left:1px solid #a3bedf}
 .services-grid>article{display:grid;grid-template-columns:minmax(0,1fr) 90px;gap:14px;padding:20px 16px;margin:0 0 14px;border-radius:14px;box-shadow:none;min-width:0}
 .services-grid>article>.number{position:absolute;left:-27px;top:21px;width:26px;height:26px;font-size:12px;border:3px solid #eff4fb}
 .services-grid>article>div{min-width:0}.services-grid>article>img{grid-column:2;grid-row:1;width:100%;height:auto;max-height:150px;aspect-ratio:1;align-self:center;object-fit:contain}.services-grid h3{font-size:18px}.services-grid p{margin-top:10px;font-size:14px!important}
 .services-grid>article:has(.mini-process){grid-template-columns:1fr}.mini-process{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;gap:12px 9px;height:auto;margin-top:5px;min-width:0}.mini-process li{font-size:11px;min-width:0;gap:7px;align-items:flex-start}.mini-process .icon{width:26px;height:26px;flex-basis:26px}
 .blue-section .cta-strip{background:#e1edff;border-color:#c9dcf7;padding:20px}.blue-section .cta-strip>.button{max-width:none}
 /* Calculation factors are a single paired matrix. */
 .s7 .shell{display:block}.price-grid{grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff;margin-top:24px}.price-grid .info-card{padding:16px 13px;background:none;border:0;border-radius:0;border-bottom:1px solid var(--line)}.price-grid .info-card:nth-child(odd){border-right:1px solid var(--line)}.price-grid .info-card:nth-last-child(-n+2){border-bottom:0}.price-grid h3{font-size:16px}.price-grid p{font-size:13px!important}.price-grid .icon{width:34px;height:34px}
 .price-aside{margin-top:20px;gap:16px}.price-aside .info-card{padding:20px}.price-aside .info-card>.icon{float:none;margin:0 0 12px;width:36px;height:36px}.price-aside .info-card>p:last-child{margin-top:14px}.s7 .cta-strip{margin-top:20px}
 /* Types and proof are two distinct visual scales, not a stack of giant images. */
 .s8 .shell{display:block}.panel-types{margin-top:22px;padding:18px;border-radius:16px}.panel-types>div{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px 10px;margin-top:18px}.panel-types figure>img{height:100px}.panel-types figcaption{font-size:11px;gap:7px}.panel-types .number{width:20px;height:20px;font-size:11px}
 .proof-grid{grid-template-columns:1fr 1fr;gap:12px;margin-top:22px}.proof-grid>article{padding:14px;border-radius:14px}.proof-heading{display:block;min-height:0}.proof-heading .icon{width:34px;height:34px;margin-bottom:10px}.proof-heading h3{font-size:16px}.proof-grid p{font-size:13px!important;margin:10px 0 14px}.proof-grid article>img{height:110px}.s8 .cta-strip{margin-top:22px}
 /* Projects are browsable, with no invented case details. */
 .s9{background:#edf1f5!important}.s9 .project-grid{display:grid;grid-auto-columns:88%;grid-template-columns:none;margin-top:24px;gap:14px}.project-grid article{display:flex;flex-direction:column;gap:0;padding:0;border-radius:16px;overflow:hidden}.project-grid article>img{height:auto;min-height:0;aspect-ratio:1.4;object-fit:cover;border-radius:0}.project-grid article>div{display:flex;padding:18px;flex:1;align-items:flex-start}.project-grid h3{font-size:22px}.project-tag{font-size:10px;letter-spacing:.035em;text-transform:uppercase;margin-top:9px}.project-grid p{margin:14px 0 18px}.project-grid .button{font-size:15px;width:100%}
 /* Company: building image precedes the longer explanation; values form a compact matrix. */
 .s10 .shell{padding-top:42px}.company-top{display:flex;flex-direction:column;gap:18px;margin:0;align-items:stretch}.company-top .intro{order:1}.company-top .intro .lead{margin-top:16px}.company-visual{order:2;min-height:0;height:auto;width:100%;border-radius:18px;overflow:hidden}.company-photo{mask-image:none;width:100%;height:auto;aspect-ratio:1.2;object-fit:cover;max-height:480px}.pool-label{right:12px;bottom:12px;max-width:90%;font-size:11px;gap:8px;padding:10px 12px;border-radius:10px}.pool-label .icon{width:30px;height:30px;flex-basis:30px}
 .company-top .mobile-flow>p{order:3;margin:0}.company-top .mobile-flow>.accent-note{order:4;font-size:14px;padding-left:14px}
 .company-values{grid-template-columns:1fr 1fr;gap:12px;margin-top:24px}.company-values .info-card{display:block;padding:15px;min-width:0}.company-values .info-card>.icon{width:34px;height:34px;margin:0 0 10px}.company-values .info-card h3{font-size:16px;overflow-wrap:normal}.company-values .info-card p{font-size:13px!important}
 .partner-card{grid-column:1/-1;display:flex;gap:14px;padding:18px;background:#eef2f8}.partner-card .icon{width:50px;height:50px;flex-basis:50px}.partner-card h3{font-size:18px}.partner-card p{margin-top:10px}
 .directions-grid{grid-template-columns:1fr;gap:18px;margin-top:24px}.directions-grid article{min-height:390px;border-radius:18px;display:flex;align-items:flex-end}.directions-grid article:before{background:linear-gradient(0deg,#10151bf5,#10151baf 68%,#10151b20)}.directions-grid article>div{max-width:100%;padding:24px}.directions-grid .icon{width:46px;height:46px;margin-bottom:15px}.directions-grid h3{font-size:24px}.directions-grid p{margin-top:12px}.directions-grid .button{width:100%;margin-top:20px}
 .directions-note{display:grid;grid-template-columns:38px 1fr;gap:14px;padding:18px;margin-top:20px}.directions-note .icon{width:38px;height:38px}.directions-note .button{grid-column:1/-1;max-width:none;width:100%}
 .faq-layout{grid-template-columns:1fr;gap:20px;margin-top:24px}.faq-list details{border-radius:12px;margin-bottom:9px}.faq-list summary{font-size:14px;gap:10px;padding:16px 13px;min-height:60px}.faq-number{padding:3px 4px;font-size:11px;flex:none}.faq-toggle{flex:none;font-size:24px}.faq-list details>p{padding:0 16px 18px 42px;font-size:14px}.question-card{padding:22px}.question-card .icon{width:42px;height:42px;margin-bottom:14px}.question-card p{margin-top:12px}.question-card .button{width:100%;margin-top:18px}.question-card>img:last-child{margin:20px -22px -22px;width:calc(100% + 44px)}
 /* Shared contacts have their own accepted text scale. */
 .trz-contacts{--body:16px;--lead:18px;--heading:32px;--card:22px}
 footer{justify-content:flex-start;gap:16px 24px;padding:24px;font-size:13px}footer>a:first-child{flex-basis:100%}
 dialog{padding:28px 22px}dialog h2{font-size:26px;line-height:1.2}.materials-preview{grid-template-columns:1fr;gap:20px}.materials-preview img{max-height:260px}
}
@media(max-width:360px){
 .section .shell{padding-left:16px;padding-right:16px}.section .eyebrow{font-size:9px;gap:8px}.section .eyebrow:before{width:16px;flex-basis:16px}
 .services-grid>article{grid-template-columns:minmax(0,1fr) 66px;padding:18px 12px;gap:10px}.services-grid h3{font-size:17px}.mini-process{grid-template-columns:1fr 1fr;gap:12px 8px}.mini-process li{font-size:11px}.mini-process .icon{width:22px;height:22px;flex-basis:22px}
 .object-grid article>div{padding:11px}.object-grid h3,.price-grid h3,.proof-heading h3,.company-values .info-card h3{font-size:15px}.object-grid p,.price-grid p,.proof-grid p,.company-values .info-card p{font-size:13px!important}
 .mobile-rail-tools{gap:7px}.rail-hint{font-size:10px}.mobile-rail-tools>div{gap:5px}
}
@media(min-width:600px) and (max-width:900px){
 .section .shell{padding:48px 32px}.s1 .shell{padding-top:30px}.hero-mobile{aspect-ratio:1.7}.hero-actions{grid-template-columns:1fr 1fr}.hero-benefits>div{flex-direction:row;text-align:left;font-size:13px;justify-content:center}
 .advantages-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.advantages-grid .info-card:first-child{grid-column:1/-1}
 [data-mobile-rail]{grid-auto-columns:72%}.s9 .project-grid{grid-auto-columns:72%}.sequence-grid article>img{aspect-ratio:1.7}
 .object-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.services-grid>article{grid-template-columns:minmax(0,1fr) 160px;padding:24px}.services-grid>article>img{max-height:170px}
 .price-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.price-grid .info-card:nth-child(n){border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.price-grid .info-card:nth-child(3n){border-right:0}.price-grid .info-card:nth-last-child(-n+3){border-bottom:0}
 .panel-types>div{grid-template-columns:repeat(6,minmax(0,1fr))}.proof-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.proof-grid article>img{height:170px}.company-photo{aspect-ratio:1.7}
}

@media(max-width:900px){
 .mobile-hero-figure{display:block;order:3;margin-top:22px;border:1px solid #dce1e9;border-radius:18px;overflow:hidden;background:#f1f4f7}
 .mobile-hero-figure .hero-mobile{margin:0;border-radius:0;aspect-ratio:1.4;object-position:center 43%}
 .mobile-diagram-legend{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;padding:13px 12px;font-size:11px;line-height:1.4}
 .mobile-diagram-legend>span{display:flex;flex-direction:column;gap:5px;min-width:0}.mobile-diagram-legend b{color:#c9480d;font-weight:700;font-size:10px;letter-spacing:.04em}
 .s2 .desktop-cutaway{display:none}.mobile-cutaway-figure{display:block;order:2;margin:0;border-radius:18px;overflow:hidden;background:#e9ebef}
 .mobile-cutaway-figure>img{width:100%;height:auto;aspect-ratio:1.2;object-fit:contain}
 .mobile-cutaway-figure .mobile-diagram-legend{grid-template-columns:1fr 1fr;padding:16px;gap:14px;background:#fff;border:1px solid var(--line);border-radius:0 0 18px 18px;font-size:12px}
 .mobile-cutaway-figure .mobile-diagram-legend>span{flex-direction:row;gap:9px;align-items:flex-start}.mobile-cutaway-figure .mobile-diagram-legend b{font-size:11px;flex:none}
}

/* Mobile section surfaces: white / steel / engineering blue / warm directions. */
@media(max-width:900px){
 .section.s1,.section.s3,.section.s5,.section.s7,.section.s9,.section.s12{background:#fff!important}
 .section.s2,.section.s4,.section.s8,.section.s10{background:#e0e7ef}
 .section.s6.blue-section{background:#d8e6f8!important}
 .section.s11{background:#e7d6bb}
 .section+.section{box-shadow:inset 0 1px #344f7020}
}