*{box-sizing:border-box}html{scroll-behavior:smooth}body.concrete-next-page{margin:0;background:#fff;color:#102f49;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.c-shell{width:min(1180px,calc(100% - 40px));margin-inline:auto}.skip-link{position:fixed;z-index:9999;left:12px;top:12px;transform:translateY(-160%);padding:10px 13px;border-radius:9px;background:#071a33;color:#fff;text-decoration:none}.skip-link:focus{transform:none}.site-header{position:sticky;z-index:100;top:0;border-bottom:1px solid #e3ebf1;background:rgba(255,255,255,.96);backdrop-filter:blur(14px)}.header-inner{display:flex;min-height:68px;align-items:center;gap:28px}.rv-logo{display:inline-flex;align-items:center}.rv-logo-image{width:215px;height:auto}.main-nav{display:flex;gap:28px;margin-left:auto}.main-nav a{color:#294961;text-decoration:none;font-size:.78rem;font-weight:850}.main-nav a[aria-current="page"]{color:#12883f}.header-cta{display:inline-flex;align-items:center;min-height:38px;padding:0 15px;border-radius:10px;background:#071a33;color:#fff;text-decoration:none;font-size:.72rem;font-weight:900}.menu-toggle{display:none;margin-left:auto;width:40px;height:40px;padding:8px;border:1px solid #d5e0e8;border-radius:10px;background:#fff}.menu-toggle span{display:block;height:2px;margin:4px 0;background:#173b56}.eyebrow{margin:0 0 10px;color:#0d82ba;font-size:.68rem;font-weight:950;letter-spacing:.12em;text-transform:uppercase}.c-hero{padding:78px 0 72px;background:linear-gradient(180deg,#fff,#f5f9fb)}.c-hero-grid{display:grid;grid-template-columns:1.03fr .97fr;gap:58px;align-items:center}.c-hero h1{max-width:690px;margin:0;color:#071a33;font-size:clamp(2.65rem,5.4vw,4.85rem);line-height:.94;letter-spacing:-.055em}.c-hero h1 em{color:#148844;font-style:normal}.c-lead{max-width:720px;margin:24px 0 0;color:#567186;font-size:1.05rem;line-height:1.7}.c-hero-actions,.data-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}.c-btn{display:inline-flex;min-height:43px;align-items:center;justify-content:center;padding:0 15px;border:1px solid #c9dae5;border-radius:11px;text-decoration:none;font-size:.74rem;font-weight:900}.c-btn-primary{border-color:#071a33;background:#071a33;color:#fff}.c-btn-ghost{background:#fff;color:#21445f}.c-trust{display:flex;flex-wrap:wrap;gap:8px;margin:24px 0 0;padding:0;list-style:none}.c-trust li{padding:7px 9px;border:1px solid #d7e3eb;border-radius:8px;background:#fff;color:#5f778b;font-size:.65rem;font-weight:800}.pour-board{padding:24px;color:#fff}.pour-head{position:relative;z-index:2;display:flex;justify-content:space-between;gap:15px;padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.13)}.pour-head span{color:#52dcff;font-size:.65rem;font-weight:950;letter-spacing:.12em}.pour-head small{color:#9db5c8;font-size:.63rem}.pour-scene{position:relative;z-index:2;height:180px;margin:18px 0 8px;overflow:hidden}.slab{position:absolute;right:6%;bottom:20px;width:55%;height:50px;border:1px solid rgba(255,255,255,.25);background:linear-gradient(135deg,rgba(255,255,255,.15),rgba(255,255,255,.04));transform:skewY(-5deg)}.slab i{position:absolute;inset:10px;border:1px dashed rgba(103,231,255,.38)}.truck{position:absolute;left:5%;top:34px;width:132px;height:57px}.truck:before{content:"";position:absolute;left:0;bottom:15px;width:55px;height:34px;border:1px solid rgba(255,255,255,.28);border-radius:8px 4px 4px 8px;background:#0d355f}.truck i{position:absolute;left:53px;top:1px;width:64px;height:42px;border:1px solid rgba(255,255,255,.3);border-radius:50%;background:linear-gradient(145deg,#1c547f,#0b2749);transform:rotate(18deg)}.truck b,.truck em{position:absolute;bottom:0;width:19px;height:19px;border:5px solid #183c5b;border-radius:50%;background:#a9c4d5}.truck b{left:22px}.truck em{left:93px}.pour-line{position:absolute;left:104px;top:64px;width:150px;height:2px;background:linear-gradient(90deg,#59d7ff,#50dd5d);transform:rotate(22deg);transform-origin:left}.pour-kpis{position:relative;z-index:2;display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.pour-kpis>div{padding:11px;border:1px solid rgba(255,255,255,.12);border-radius:11px;background:rgba(255,255,255,.045)}.pour-kpis span{display:block;color:#8faabd;font-size:.59rem}.pour-kpis strong{display:block;margin-top:4px;color:#fff;font-size:.82rem}.pour-board>p{position:relative;z-index:2;margin:13px 0 0;color:#9fb5c6;font-size:.65rem;line-height:1.55}.anchor-nav{position:sticky;z-index:70;top:68px;border-bottom:1px solid #dde8ef;background:rgba(250,252,253,.97);backdrop-filter:blur(12px)}.anchor-scroll{display:flex;gap:24px;overflow:auto}.anchor-scroll a{flex:0 0 auto;padding:11px 0;color:#46657c;text-decoration:none;font-size:.68rem;font-weight:850}.c-tool-section,.c-section{padding:82px 0}.c-soft{background:#f5f8fa}.section-intro{max-width:880px}.section-intro h2,.method-grid h2,.faq-grid h2,.bag-grid h2,.breakdown-head h2{margin:0;color:#071a33;font-size:clamp(1.9rem,3.5vw,3rem);line-height:1.05;letter-spacing:-.04em}.section-intro>p:last-child,.method-grid>div>p,.faq-grid>div>p,.bag-grid>div>p{color:#5c7589;line-height:1.7}.section-intro.compact{max-width:760px}.c-mode{display:grid;grid-template-columns:1fr 1fr;max-width:720px;gap:7px;margin:28px 0 18px;padding:5px;border:1px solid #d6e3eb;border-radius:16px;background:#f5f9fb}.c-mode button{display:grid;gap:2px;min-height:58px;padding:9px 13px;border:0;border-radius:11px;background:transparent;color:#41617a;text-align:left;font:inherit;cursor:pointer}.c-mode button.is-active{background:#071a33;color:#fff;box-shadow:0 8px 20px rgba(7,26,51,.13)}.c-mode button{font-size:.78rem;font-weight:900}.c-mode small{font-size:.61rem;font-weight:500;opacity:.72}.c-tool-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(370px,.92fr);gap:22px;align-items:start}.c-input-card{padding:22px;border:1px solid #d5e3ec;border-radius:20px;background:#fbfdfe;box-shadow:0 18px 38px rgba(10,49,78,.06)}.component-toolbar{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:13px}.component-toolbar strong{display:block;color:#153b56;font-size:.82rem}.component-toolbar small{display:block;margin-top:2px;color:#71899a;font-size:.65rem}.text-action{padding:9px 11px;border:1px solid #cfe0e9;border-radius:9px;background:#fff;color:#1a658e;font-size:.68rem;font-weight:900;cursor:pointer}.component-list{display:grid;gap:11px}.component-card{position:relative;padding:16px;border:1px solid #d2e1ea;border-radius:15px;background:#fff}.component-card-head{display:flex;gap:10px;align-items:center;margin-bottom:13px}.component-index{display:grid;place-items:center;width:32px;height:32px;border-radius:9px;background:#071a33;color:#fff;font-size:.62rem;font-weight:950}.component-name{min-width:0;flex:1;border:0;border-bottom:1px solid transparent;background:transparent;color:#173c57;font:800 .77rem inherit;outline:none}.component-name:focus{border-bottom-color:#68bde5}.component-remove{border:0;background:transparent;color:#8295a4;font-size:1rem;cursor:pointer}.component-type-row{display:grid;grid-template-columns:180px 1fr;gap:11px;align-items:end}.field{display:grid;gap:6px;margin-bottom:14px}.field>span{color:#173d58;font-size:.69rem;font-weight:900}.field>small{color:#71889b;font-size:.61rem;line-height:1.45}.field select,.field .plain-input,select{width:100%;min-height:46px;padding:0 12px;border:1px solid #c8dbe6;border-radius:11px;background:#fff;color:#123652;font:800 .72rem inherit;outline:none}.field select:focus,.field .plain-input:focus,.input-unit:focus-within{border-color:#4ab4e6;box-shadow:0 0 0 3px rgba(45,160,218,.08)}.input-unit{display:grid;grid-template-columns:1fr auto;align-items:center;border:1px solid #c8dbe6;border-radius:11px;background:#fff;overflow:hidden}.input-unit input{min-width:0;min-height:46px;padding:0 12px;border:0;outline:0;color:#071a33;font:900 .8rem inherit}.input-unit b{display:grid;place-items:center;min-height:46px;padding:0 12px;border-left:1px solid #e0e9ef;background:#f6f9fb;color:#627e92;font-size:.64rem}.component-fields{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.component-fields .field{margin:0}.component-volume{display:flex;justify-content:flex-end;margin-top:11px;color:#698195;font-size:.64rem}.component-volume strong{margin-left:5px;color:#0d8550}.input-divider{display:flex;gap:11px;align-items:center;margin:24px 0 16px;padding-top:20px;border-top:1px solid #e1e9ee}.input-divider>span{display:grid;place-items:center;width:31px;height:31px;border-radius:9px;background:#0b294a;color:#fff;font-size:.62rem;font-weight:950}.input-divider strong{display:block;color:#173b56;font-size:.8rem}.input-divider small{display:block;margin-top:2px;color:#758c9d;font-size:.62rem}.field-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}.reserve-chips{display:flex;gap:7px;flex-wrap:wrap;margin:-2px 0 14px}.reserve-chips button{padding:7px 10px;border:1px solid #d1e0e9;border-radius:8px;background:#fff;color:#4e6b80;font-size:.64rem;font-weight:900;cursor:pointer}.reserve-chips button.is-active{border-color:#3dafdc;background:#ecf8fe;color:#0a6e9c}.own-price{margin-top:12px;border:1px solid #d8e4eb;border-radius:12px;background:#fff}.own-price summary{padding:12px 14px;color:#254d69;font-size:.7rem;font-weight:900;cursor:pointer}.own-price>div{padding:0 14px}.own-price>p{margin:0;padding:0 14px 14px;color:#748b9c;font-size:.62rem;line-height:1.5}.c-result{padding:24px;color:#fff}.result-kicker{position:relative;z-index:2;display:flex;justify-content:space-between;gap:12px;align-items:center;padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.12)}.result-kicker span{color:#53dcff;font-size:.65rem;font-weight:950;letter-spacing:.11em}.result-kicker small{color:#9eb6c8;font-size:.62rem}.result-main{position:relative;z-index:2;padding:20px 0 17px}.result-main>span{display:block;color:#d7e7f1;font-size:.7rem;font-weight:850}.result-main>strong{display:block;margin-top:7px;color:#fff;font-size:clamp(2.6rem,4.6vw,4.15rem);line-height:.92;letter-spacing:-.05em}.result-main>small{display:block;margin-top:8px;color:#9fb6c7;font-size:.67rem;line-height:1.5}.result-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.result-grid>div{min-width:0;padding:11px;border:1px solid rgba(255,255,255,.12);border-radius:11px;background:rgba(255,255,255,.045)}.result-grid span{display:block;color:#8fa9bb;font-size:.59rem;line-height:1.35}.result-grid strong{display:block;margin-top:5px;color:#fff;font-size:.77rem}.result-callout{position:relative;z-index:2;margin-top:13px;padding:13px 14px;border-left:3px solid #4de05e;border-radius:0 10px 10px 0;background:rgba(69,213,90,.08)}.result-callout strong{color:#6bf178;font-size:.68rem}.result-callout p{margin:4px 0 0;color:#c4d4df;font-size:.66rem;line-height:1.55}.result-price{position:relative;z-index:2;margin-top:10px;padding:12px;border:1px solid rgba(100,218,255,.18);border-radius:10px;background:rgba(51,176,224,.08)}.result-price span,.result-price small{display:block;color:#9db6c8;font-size:.59rem}.result-price strong{display:block;margin:4px 0;color:#fff;font-size:1.05rem}.result-actions{position:relative;z-index:2;display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}.result-actions button{min-height:37px;padding:0 11px;border:1px solid rgba(255,255,255,.18);border-radius:9px;background:rgba(255,255,255,.035);color:#dce9f3;font-size:.66rem;font-weight:850;cursor:pointer}.breakdown-wrap{margin-top:48px}.breakdown-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:16px}.breakdown-head>span{padding:7px 9px;border-radius:8px;background:#e9f7ef;color:#0e7f3b;font-size:.63rem;font-weight:900}.breakdown-table-wrap,.tech-table-wrap{overflow:auto;border:1px solid #d9e5ec;border-radius:15px;background:#fff}.breakdown-table,.tech-table{width:100%;border-collapse:collapse}.breakdown-table th,.breakdown-table td,.tech-table th,.tech-table td{padding:13px 15px;border-bottom:1px solid #e5edf2;text-align:left;vertical-align:top}.breakdown-table th,.tech-table th{background:#f6f9fb;color:#617b8e;font-size:.61rem;text-transform:uppercase;letter-spacing:.06em}.breakdown-table td,.tech-table td{color:#416077;font-size:.69rem}.breakdown-table td strong,.tech-table td strong{display:block;color:#153b56}.breakdown-table tr:last-child td,.tech-table tr:last-child td{border-bottom:0}.logistics-grid,.risk-grid,.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:24px}.logistics-grid article,.risk-grid article{padding:18px;border:1px solid #d8e5ed;border-radius:16px;background:#fff}.logistics-grid article>span,.risk-grid article>span{display:inline-flex;padding:4px 7px;border-radius:6px;background:#0b294a;color:#fff;font-size:.61rem;font-weight:950}.logistics-grid h3,.risk-grid h3{margin:12px 0 6px;color:#153b56;font-size:.84rem}.logistics-grid p,.risk-grid p{margin:0;color:#667e91;font-size:.68rem;line-height:1.55}.bag-grid{display:grid;grid-template-columns:1fr .9fr;gap:42px;align-items:start}.bag-result{padding:22px;border:1px solid #d5e3eb;border-radius:18px;background:#f8fbfd}.bag-result>div:first-child{display:flex;justify-content:space-between;gap:15px;padding-bottom:12px;border-bottom:1px solid #dfe8ed}.bag-result span{color:#607a8e;font-size:.64rem}.bag-result strong{color:#0b2c49}.bag-big{padding:24px 0}.bag-big span,.bag-big small{display:block}.bag-big strong{display:block;margin:5px 0;color:#071a33;font-size:clamp(2.4rem,4vw,3.7rem);line-height:.95}.bag-big small{color:#6f8799;font-size:.65rem}.bag-cost{padding:12px;border-radius:11px;background:#e9f7ef}.bag-cost strong{display:block;margin-top:4px;color:#0f7f3d;font-size:1rem}.bag-result>p{margin:14px 0 0;color:#6c8294;font-size:.68rem;line-height:1.6}.tech-table a{color:inherit;text-decoration:none}.tech-table a small{display:block;color:#7890a1;font-size:.6rem}.dataset-note{margin:12px 0 0;color:#748a9b;font-size:.66rem;line-height:1.55}.method-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:start}.formula-box{margin:10px 0;padding:13px 15px;border-left:4px solid #2ea7df;border-radius:0 11px 11px 0;background:#f3f9fc;color:#173d58;font:850 .75rem ui-monospace,SFMono-Regular,Menlo,monospace}.method-cards{display:grid;gap:10px}.method-cards>div{padding:18px;border:1px solid #d8e5ec;border-radius:16px;background:#f8fbfd}.method-cards span{display:block;color:#0e8640;font-size:1.45rem;font-weight:950}.method-cards strong{display:block;margin-top:3px;color:#173b56;font-size:.77rem}.method-cards p{margin:5px 0 0;color:#6c8294;font-size:.67rem;line-height:1.5}.faq-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:50px;align-items:start}.faq-list{display:grid;gap:8px}.faq-list details{border:1px solid #d8e5ed;border-radius:13px;background:#fbfdfe;overflow:hidden}.faq-list summary{padding:14px 16px;cursor:pointer;color:#173b56;font-size:.77rem;font-weight:860}.faq-list p{margin:0;padding:0 16px 16px;color:#657d90;font-size:.69rem;line-height:1.62}.c-related{padding:76px 0;background:#f5f8fa}.related-grid a{display:grid;gap:7px;padding:18px;border:1px solid #d8e5ed;border-radius:16px;background:#fff;color:inherit;text-decoration:none}.related-grid a>span{display:grid;place-items:center;width:38px;height:30px;border-radius:8px;background:#071a33;color:#fff;font-size:.61rem;font-weight:950}.related-grid strong{color:#153b56;font-size:.82rem}.related-grid p{margin:0;color:#6a8295;font-size:.67rem;line-height:1.5}.site-footer{padding-top:48px;background:#06182e;color:#dbe7f2;border-top:3px solid transparent;border-image:linear-gradient(90deg,#1aa4e8 0 67%,#45d85d 67%) 1}.c-footer-grid{display:grid;grid-template-columns:1.35fr .75fr .95fr .9fr;gap:50px}.c-footer-brand>p{max-width:350px;color:#9bb1c4;font-size:.73rem;line-height:1.6}.c-footer-brand>a:not(.rv-logo){color:#d8e7f4;font-size:.74rem}.c-footer-grid h2{margin:2px 0 12px;color:#fff;font-size:.72rem}.c-footer-grid>div:not(:first-child){display:flex;flex-direction:column}.c-footer-grid>div:not(:first-child)>a{margin-bottom:9px;color:#9fb6ca;text-decoration:none;font-size:.72rem}.footer-socials{display:flex;gap:9px;margin-top:15px}.footer-socials a{display:grid!important;place-items:center;width:37px;height:37px!important;margin:0!important;border:1px solid rgba(255,255,255,.18);border-radius:11px;background:rgba(255,255,255,.025);color:#dbe5ee!important}.footer-socials svg{width:18px;height:18px}.rv-footer-process{display:flex;flex-wrap:wrap;gap:7px;margin-top:14px}.rv-footer-process span{padding:6px 8px;border:1px solid rgba(255,255,255,.12);border-radius:7px;color:#b7c9d7;font-size:.57rem;font-weight:900;text-transform:uppercase}.rv-footer-process span:last-child{border-color:rgba(71,216,91,.35);color:#62e573}.c-footer-bottom{display:flex;justify-content:space-between;gap:28px;margin-top:35px;padding:18px 0 24px;border-top:1px solid rgba(255,255,255,.11);color:#839ab0;font-size:.61rem;line-height:1.55}.c-footer-bottom span:last-child{max-width:610px;text-align:right}.c-footer-bottom strong{color:#b7cad8}
@media(max-width:1050px){.c-hero-grid{grid-template-columns:1fr;gap:38px}.pour-board{max-width:760px}.c-tool-grid{grid-template-columns:1fr}.logistics-grid,.risk-grid,.related-grid{grid-template-columns:1fr 1fr}.bag-grid,.method-grid,.faq-grid{grid-template-columns:1fr;gap:30px}.c-footer-grid{grid-template-columns:1.2fr 1fr 1fr}.c-footer-grid>div:last-child{grid-column:2}}
@media(max-width:780px){.c-shell{width:min(100% - 28px,1180px)}.main-nav{display:none;position:absolute;left:14px;right:14px;top:62px;flex-direction:column;gap:0;padding:8px;border:1px solid #d9e4eb;border-radius:12px;background:#fff;box-shadow:0 18px 40px rgba(7,26,51,.16)}.main-nav.is-open{display:flex}.main-nav a{padding:11px 10px}.header-cta{display:none}.menu-toggle{display:block}.rv-logo-image{width:190px}.anchor-nav{top:68px}.component-type-row{grid-template-columns:1fr}.component-fields{grid-template-columns:1fr 1fr}.pour-kpis{grid-template-columns:1fr 1fr}.pour-kpis>div:last-child{grid-column:1/-1}.field-grid-2{grid-template-columns:1fr}.breakdown-head{align-items:start;flex-direction:column}.c-footer-grid{grid-template-columns:1fr 1fr}.c-footer-grid>div:last-child{grid-column:auto}.c-footer-bottom{flex-direction:column}.c-footer-bottom span:last-child{text-align:left;max-width:none}}
@media(max-width:560px){.c-hero{padding:54px 0 52px}.c-hero h1{font-size:2.72rem}.c-lead{font-size:.94rem}.c-mode{grid-template-columns:1fr}.c-input-card,.c-result{padding:16px}.component-toolbar{align-items:flex-start}.component-fields{grid-template-columns:1fr}.result-grid{grid-template-columns:1fr}.logistics-grid,.risk-grid,.related-grid{grid-template-columns:1fr}.pour-scene{height:145px}.pour-kpis{grid-template-columns:1fr}.pour-kpis>div:last-child{grid-column:auto}.breakdown-table th:nth-child(2),.breakdown-table td:nth-child(2){display:none}.tech-table{min-width:780px}.c-footer-grid{grid-template-columns:1fr;gap:26px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* ==========================================================================
   BETON — FINAL INPUT LAYOUT
   Geometry is a separate row. Dimensions form one exact equal-width row.
   Original VNEXT-06 page/result layout is otherwise untouched.
   ========================================================================== */

.component-type-row{
  display:grid;
  grid-template-columns:1fr;
  gap:13px;
  align-items:start;
}

/* Geometry selector gets its own deliberate row. */
.component-type-row>.field{
  width:min(100%,280px);
  min-width:0;
  margin:0;
}

/* Dimensional controls share the complete available width equally. */
.component-fields{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(118px,1fr));
  gap:12px;
  width:100%;
  min-width:0;
}

.component-fields>.field{
  min-width:0;
  margin:0;
}

.component-fields .input-unit{
  width:100%;
  min-width:0;
  grid-template-columns:minmax(0,1fr) 42px;
}

.component-fields .input-unit input{
  width:100%;
  min-width:0;
}

.component-fields .input-unit b{
  width:42px;
  min-width:42px;
  padding:0 5px;
}

/* Keep the calculated sub-volume visually separate from the input row. */
.component-volume{
  margin-top:13px;
}

/* Tablet: dimensions become a clean two-column matrix. */
@media(max-width:780px){
  .component-type-row>.field{
    width:100%;
  }

  .component-fields{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}

/* Phone: one input per row, no squeezing. */
@media(max-width:560px){
  .component-fields{
    grid-template-columns:1fr;
  }
}

/* RV V-next accessibility hardening — 2026-08-18 */
.c-mode [role="tab"],.reserve-chips button,.footer-socials a{min-height:44px}.footer-socials a{min-width:44px;display:inline-flex;align-items:center;justify-content:center}.concrete-next-page a:focus-visible,.concrete-next-page button:focus-visible,.concrete-next-page input:focus-visible,.concrete-next-page select:focus-visible,.concrete-next-page summary:focus-visible{outline:3px solid rgba(27,161,217,.38);outline-offset:3px}

/* RV V-next technical QA hardening — 2026-08-20
   Prevent grid min-content from widening the 320px viewport and keep remove control touch-safe. */
.c-tool-grid>*{min-width:0}
.component-remove{min-width:44px;min-height:44px;display:grid;place-items:center}
.component-list,.component-card,.component-card-head,.component-type-row,.component-fields{min-width:0;max-width:100%}