:root{color-scheme:dark;--page-background: #070a12;--background-mid: #0b1020;--surface: rgba(18, 24, 38, .72);--surface-strong: rgba(24, 31, 48, .82);--surface-muted: rgba(255, 255, 255, .055);--text-primary: #f5f7fb;--text-secondary: #b7c2d2;--text-soft: #d7dfec;--border: rgba(255, 255, 255, .18);--border-strong: rgba(255, 255, 255, .3);--brand-primary: #0a84ff;--brand-primary-hover: #409cff;--brand-cyan: #64d2ff;--brand-violet: #bf5af2;--brand-soft: rgba(10, 132, 255, .14);--success: #30d158;--warning: #ff9f0a;--danger: #ff453a;--radius-sm: 16px;--radius-md: 26px;--radius-lg: 30px;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 40px;--space-12: 48px;--space-16: 64px;--content-max-width: 1180px;--shadow-subtle: 0 24px 66px rgba(0, 0, 0, .3);--shadow-hover: 0 30px 76px rgba(0, 0, 0, .36);--focus-ring: 0 0 0 5px rgba(10, 132, 255, .25)}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--page-background)}body{min-width:0;margin:0;color:var(--text-primary);background:radial-gradient(circle at 16% 4%,rgba(10,132,255,.16),transparent 30%),radial-gradient(circle at 86% 12%,rgba(191,90,242,.12),transparent 34%),linear-gradient(135deg,var(--page-background),var(--background-mid) 52%,#0b0f1a);font:400 16px/1.55 system-ui,-apple-system,BlinkMacSystemFont,Inter,Segoe UI,Roboto,Arial,sans-serif;-webkit-font-smoothing:antialiased}body:before{position:fixed;inset:0;z-index:-1;pointer-events:none;content:"";opacity:.55;background-image:linear-gradient(rgba(100,210,255,.024) 1px,transparent 1px),linear-gradient(90deg,rgba(100,210,255,.02) 1px,transparent 1px);background-size:72px 72px;-webkit-mask-image:linear-gradient(to bottom,#000,transparent 90%);mask-image:linear-gradient(to bottom,#000,transparent 90%)}button,input,select,textarea{font:inherit;font-size:max(16px,1em)}input,select,textarea{min-height:50px;border:1px solid var(--border-strong);border-radius:14px;color:var(--text-primary);background:#0c121fad}input:focus-visible,select:focus-visible,textarea:focus-visible{border-color:var(--brand-cyan);outline:2px solid var(--brand-cyan);outline-offset:2px;box-shadow:var(--focus-ring)}a{color:inherit;text-decoration:none}a:focus-visible,button:focus-visible{outline:3px solid var(--brand-cyan);outline-offset:3px;box-shadow:var(--focus-ring)}svg,img{display:block;max-width:100%}.container{width:min(var(--content-max-width),calc(100% - 32px));margin-inline:auto}.app-shell{display:flex;min-height:100vh;flex-direction:column}.skip-link{position:fixed;z-index:50;top:-100px;left:16px;padding:10px 16px;border-radius:var(--radius-sm);color:var(--text-primary);background:var(--surface-strong)}.skip-link:focus{top:12px}.site-header{position:sticky;z-index:20;top:0;padding:12px 0}.header-inner{display:flex;min-height:90px;align-items:center;justify-content:space-between;gap:var(--space-6);padding:10px 18px;border:1px solid var(--border);border-radius:var(--radius-lg);background:linear-gradient(90deg,#0a84ff21,#bf5af21a),#0f1422d1;box-shadow:var(--shadow-subtle),0 0 30px #0a84ff14,inset 0 1px #ffffff29;-webkit-backdrop-filter:blur(18px) saturate(145%);backdrop-filter:blur(18px) saturate(145%)}.brand-lockup{display:inline-flex;min-width:0;min-height:52px;align-items:center;gap:16px}.brand-logo{width:174px;height:58px;flex:none;object-fit:contain;background:transparent;border-radius:12px;box-shadow:none;filter:none}.brand-copy{display:grid;min-width:0;gap:3px;line-height:1.15}.brand-copy strong{font-size:21px;font-weight:760;letter-spacing:-.035em}.brand-copy small{color:var(--text-soft);font-size:12px;line-height:1.25}.header-nav{display:flex;align-items:center;gap:8px;flex:none}.header-nav a{display:inline-flex;min-height:46px;align-items:center;justify-content:center;gap:7px;padding:0 16px;border:1px solid var(--border);border-radius:var(--radius-sm);background:linear-gradient(180deg,#ffffff1a,#ffffff09),#141c2e94;font-size:13px;font-weight:650;transition:transform .22s,border-color .22s,background .22s,box-shadow .22s}.header-nav a:hover{transform:translateY(-2px);border-color:#64d2ff7a;background:#0a84ff2e;box-shadow:0 10px 24px #0a84ff1f}.header-nav .back-site{color:var(--text-soft)}.main-content{flex:1}.hero,.module-card,.roof-card,.detail-panel{border:1px solid var(--border);background:linear-gradient(145deg,#ffffff1a,#ffffff09),var(--surface);box-shadow:var(--shadow-subtle),inset 0 1px #ffffff29;-webkit-backdrop-filter:blur(18px) saturate(145%);backdrop-filter:blur(18px) saturate(145%)}.hero{position:relative;min-height:390px;margin-top:34px;border-radius:var(--radius-lg);overflow:hidden}.hero:before{position:absolute;inset:0 auto 0 0;width:5px;content:"";background:linear-gradient(var(--brand-cyan),var(--brand-primary),var(--brand-violet))}.hero-copy{position:relative;max-width:760px;padding:clamp(32px,5vw,64px)}.hero-index{position:absolute;top:34px;right:40px;color:var(--brand-cyan);font-size:12px;font-weight:800;letter-spacing:.12em}.eyebrow{margin:0;color:var(--brand-cyan);font-size:12px;font-weight:750;letter-spacing:.12em;text-transform:uppercase}.eyebrow-line{display:inline-block;width:19px;height:2px;margin:0 9px 4px 0;background:currentColor;vertical-align:middle}.hero h1,.page-intro h1{margin:22px 0 12px;color:var(--text-primary);font-size:clamp(47px,5.8vw,74px);font-weight:780;line-height:1.04;letter-spacing:-.055em}.title-period{color:var(--brand-cyan)}.hero-lead{margin:0;color:var(--text-primary);font-size:clamp(23px,2.5vw,31px);font-weight:650;line-height:1.22;letter-spacing:-.03em}.hero-description{max-width:530px;margin:20px 0 26px;color:var(--text-secondary);font-size:16px;line-height:1.6}.primary-button,.secondary-button{display:inline-flex;min-height:50px;align-items:center;justify-content:center;gap:14px;padding:10px 20px;border:1px solid rgba(100,210,255,.34);border-radius:var(--radius-sm);font-size:14px;font-weight:700;transition:transform .22s,border-color .22s,background .22s,box-shadow .22s}.primary-button{color:#fff;background:linear-gradient(135deg,#0a84ffd6,#5e5ce6bd);box-shadow:0 12px 32px #0a84ff26}.secondary-button{color:var(--text-primary);background:#ffffff12}.primary-button:hover,.secondary-button:hover{transform:translateY(-2px);border-color:var(--brand-cyan);box-shadow:0 16px 36px #0a84ff3d}.primary-button:hover{background:linear-gradient(135deg,var(--brand-primary),rgba(191,90,242,.7))}.secondary-button:hover{background:#0a84ff2e}.modules-section{margin-top:70px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:22px}.section-heading h2{margin:9px 0 0;font-size:clamp(30px,3vw,39px);line-height:1.12;letter-spacing:-.035em}.section-count{color:var(--text-secondary);font-size:12px;font-weight:700;letter-spacing:.1em}.module-card{display:flex;min-height:188px;align-items:center;gap:26px;padding:24px;border-radius:var(--radius-md);transition:transform .22s,border-color .22s,box-shadow .22s,background .22s}.module-card:hover,.roof-card:hover{transform:translateY(-3px);border-color:#64d2ff85;background:linear-gradient(145deg,#ffffff21,#ffffff0b),var(--surface-strong);box-shadow:var(--shadow-hover),0 0 30px #0a84ff21,inset 0 1px #fff3}.module-icon{display:grid;width:132px;height:126px;flex:none;place-items:center;border:1px solid rgba(100,210,255,.28);border-radius:20px;color:var(--brand-cyan);background:radial-gradient(circle at 15% 15%,rgba(10,132,255,.2),transparent 65%),#0a84ff1a}.module-icon svg{width:108px}.module-icon .android-calculator-icon{display:block;width:70px;height:70px;object-fit:contain}.android-roof-wall{color:var(--text-secondary);opacity:.65}.module-info{display:grid;min-width:0;gap:5px}.module-index{color:var(--brand-cyan);font-size:11px;font-weight:800;letter-spacing:.1em}.module-info strong{font-size:27px;line-height:1.15;letter-spacing:-.03em}.module-info>span:last-child{color:var(--text-secondary);font-size:15px}.module-action{display:inline-flex;align-items:center;gap:12px;margin-left:auto;color:var(--brand-cyan);font-size:14px;font-weight:750;white-space:nowrap}.breadcrumbs{display:flex;min-height:44px;align-items:center;flex-wrap:wrap;gap:11px;margin-top:20px;color:var(--text-secondary);font-size:13px}.breadcrumbs a{display:inline-flex;min-height:44px;align-items:center}.breadcrumbs a:hover{color:var(--brand-cyan)}.breadcrumbs [aria-current]{color:var(--text-primary);font-weight:700}.page-intro{max-width:780px;margin:34px 0}.page-intro h1{margin:17px 0 16px;font-size:clamp(42px,5vw,65px)}.page-intro>p:last-child{max-width:640px;margin:0;color:var(--text-secondary);line-height:1.65}.roof-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.roof-card{display:flex;min-width:0;min-height:250px;flex-direction:column;padding:22px 25px 24px;border-radius:var(--radius-md);transition:transform .22s,border-color .22s,box-shadow .22s,background .22s}.roof-card-top{display:flex;align-items:center;justify-content:space-between}.roof-number{color:var(--brand-cyan);font-size:12px;font-weight:800;letter-spacing:.1em}.roof-arrow{display:grid;width:35px;height:35px;place-items:center;border:1px solid var(--border);border-radius:50%;color:var(--brand-cyan);background:var(--surface-muted)}.roof-illustration{display:grid;height:123px;place-items:center;color:var(--brand-cyan)}.roof-illustration svg{width:160px;max-height:104px;filter:drop-shadow(0 8px 15px rgba(10,132,255,.17))}.roof-illustration .android-roof-icon{width:104px;height:104px}.roof-card-text{display:grid;gap:3px}.roof-card-text strong{font-size:22px;line-height:1.2;letter-spacing:-.025em}.roof-card-text>span{color:var(--text-secondary);font-size:15px}.detail-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.85fr);gap:18px}.detail-panel{min-height:335px;padding:clamp(25px,4vw,48px);border-radius:var(--radius-md)}.detail-step{color:var(--brand-cyan);font-size:11px;font-weight:800;letter-spacing:.13em}.detail-copy h2{max-width:510px;margin:30px 0 15px;font-size:clamp(26px,2.8vw,36px);line-height:1.16;letter-spacing:-.035em}.detail-copy p{max-width:520px;margin-bottom:25px;color:var(--text-secondary);line-height:1.65}.detail-preview{display:flex;align-items:center;flex-direction:column;justify-content:space-between;background:radial-gradient(circle at 50% 45%,rgba(10,132,255,.16),transparent 60%),var(--surface)}.detail-preview .detail-step{align-self:flex-start}.detail-preview svg{width:min(82%,290px);color:var(--brand-cyan)}.preview-caption{align-self:flex-end;color:var(--text-secondary);font-size:12px}.not-found{margin:100px 0}.not-found h1{font-size:clamp(35px,5vw,64px);letter-spacing:-.05em}.text-link{display:inline-flex;min-height:44px;align-items:center;color:var(--brand-cyan);font-weight:700}.site-footer{margin-top:78px;border-top:1px solid var(--border);background:#070a126b}.footer-inner{display:flex;min-height:78px;align-items:center;justify-content:space-between;gap:20px;color:var(--text-secondary);font-size:13px}.footer-inner>span:first-child{color:var(--text-primary);font-weight:700}.footer-separator{margin:0 9px;color:var(--brand-cyan)}@media(max-width:900px){.header-inner{gap:15px}.brand-logo{width:132px;height:44px}.brand-copy strong{font-size:19px}.brand-copy small{font-size:11px}.module-action{white-space:normal}}@media(max-width:700px){.site-header{padding:8px 0}.header-inner{align-items:stretch;flex-direction:column;gap:7px;padding:9px 13px;border-radius:22px}.brand-lockup{min-height:52px}.brand-logo{width:138px;height:46px}.header-nav{width:100%}.header-nav a{flex:1;min-height:44px;padding:0 10px}.hero{margin-top:22px}.hero-copy{padding:38px 32px}.hero-index{top:19px;right:24px}.modules-section{margin-top:58px}.roof-grid,.detail-layout{grid-template-columns:1fr}.page-intro{margin:28px 0}.site-footer{margin-top:60px}}@media(max-width:480px){.brand-lockup{gap:10px}.brand-logo{width:120px;height:40px}.brand-copy strong{font-size:17px}.brand-copy small{font-size:10px}.header-nav a{font-size:12px}.hero{min-height:0}.hero-copy{padding:44px 22px 32px}.hero-index{top:15px;right:18px;font-size:10px}.hero h1{font-size:clamp(32px,10vw,46px)}.hero-lead{font-size:25px}.hero-description{font-size:15px}.module-card{align-items:flex-start;flex-wrap:wrap;gap:15px;padding:20px}.module-icon{width:74px;height:74px;border-radius:17px}.module-icon svg{width:66px}.module-icon .android-calculator-icon{width:66px;height:66px}.module-info{flex:1;min-width:135px}.module-info strong{font-size:23px}.module-action{width:100%;margin-left:0;padding-top:4px}.roof-card{min-height:230px;padding:20px}.roof-illustration{height:109px}.page-intro h1{font-size:clamp(38px,11vw,49px)}.footer-inner{align-items:flex-start;flex-direction:column;justify-content:center;gap:3px}.detail-panel{min-height:290px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}.roof-intro{margin-bottom:28px}.roof-wizard-layout{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);align-items:start;gap:18px}.roof-wizard-panel,.roof-preview-panel{min-width:0;border:1px solid var(--border);border-radius:var(--radius-md);background:linear-gradient(145deg,#ffffff1a,#ffffff09),var(--surface);box-shadow:var(--shadow-subtle),inset 0 1px #ffffff29;-webkit-backdrop-filter:blur(18px) saturate(145%);backdrop-filter:blur(18px) saturate(145%)}.roof-wizard-panel{padding:clamp(22px,3vw,38px)}.roof-preview-panel{position:sticky;top:112px;padding:clamp(22px,3vw,34px);background:radial-gradient(circle at 50% 25%,rgba(10,132,255,.16),transparent 55%),var(--surface)}.roof-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:7px;margin:0 0 36px;padding:0;list-style:none}.roof-steps li{min-width:0;padding-top:10px;border-top:2px solid var(--border);color:var(--text-secondary);font-size:11px;font-weight:650;line-height:1.3}.roof-steps li.active{border-color:var(--brand-cyan);color:var(--text-primary)}.roof-steps li.done{border-color:var(--brand-primary)}.roof-steps li span{display:inline-grid;width:22px;height:22px;place-items:center;margin-right:4px;border-radius:50%;background:var(--surface-muted);color:var(--brand-cyan)}.roof-step-content h2{margin:12px 0 8px;font-size:clamp(26px,3vw,34px);line-height:1.15;letter-spacing:-.035em}.roof-step-content>p{color:var(--text-secondary)}.roof-field{margin:22px 0}.roof-field label,.roof-choice-field legend{display:block;margin-bottom:8px;color:var(--text-primary);font-size:14px;font-weight:700}.roof-field-input{position:relative}.roof-field-input input{width:100%;padding:12px 52px 12px 16px}.roof-field-input span{position:absolute;top:50%;right:17px;color:var(--text-secondary);transform:translateY(-50%);pointer-events:none}.roof-field input[aria-invalid=true]{border-color:var(--danger)}.roof-error{margin:6px 0 0;color:#ff9c95;font-size:13px}.roof-hint{margin:6px 0 0;color:var(--text-secondary);font-size:13px}.roof-choice-field{min-width:0;margin:23px 0;padding:0;border:0}.roof-choices{display:flex;flex-wrap:wrap;gap:8px}.roof-choices label{position:relative;display:inline-flex;min-height:44px;align-items:center;border:1px solid var(--border);border-radius:13px;background:var(--surface-muted);cursor:pointer}.roof-choices label.is-selected{border-color:var(--brand-cyan);background:#0a84ff3b}.roof-choices input{position:absolute;width:100%;height:100%;margin:0;opacity:0;cursor:pointer}.roof-choices input:focus-visible+span{outline:3px solid var(--brand-cyan);outline-offset:3px}.roof-choices span{padding:10px 13px;font-size:13px;font-weight:650}.roof-plan-note{padding:14px 16px;border:1px solid rgba(100,210,255,.22);border-radius:14px;background:#0a84ff1a}.roof-plan-svg{width:100%;max-height:310px;margin:18px auto 8px;overflow:visible}.roof-plan-svg text{fill:var(--text-secondary);font:12px system-ui,sans-serif}.roof-outer{fill:#0a84ff1f;stroke:var(--brand-cyan);stroke-width:2}.roof-house{fill:none;stroke:#ffffff94;stroke-dasharray:5 5}.roof-ridge{stroke:var(--brand-violet);stroke-width:4;stroke-linecap:round}.roof-direction{fill:none;stroke:var(--brand-cyan);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}.roof-preview-empty{display:grid;min-height:240px;place-content:center;text-align:center;color:var(--text-secondary)}.roof-preview-empty p{max-width:230px;margin:8px auto;font-size:14px}.roof-preview-icon{color:var(--brand-cyan);font-size:74px;line-height:1}.roof-preview-info{padding-top:10px;border-top:1px solid var(--border)}.roof-preview-info h2{margin:9px 0 14px;font-size:20px;letter-spacing:-.02em}.roof-preview-info dl,.roof-review dl{margin:0}.roof-metric{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.09)}.roof-metric dt{color:var(--text-secondary);font-size:13px}.roof-metric dd{margin:0;font-size:14px;font-weight:700;text-align:right;overflow-wrap:anywhere}.roof-review h2{margin:0 0 8px;font-size:25px}.roof-review>p{color:var(--text-secondary);font-size:14px}.roof-review dl{margin-top:17px}.roof-review .roof-metric:last-child{border-bottom:0}.roof-warning{padding:12px 14px;border:1px solid rgba(255,159,10,.35);border-radius:12px;color:#ffd397!important;background:#ff9f0a1a;font-size:13px}.roof-next-phase{margin-top:18px;padding:14px;border:1px solid var(--border);border-radius:12px;text-align:center}.roof-wizard-actions{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:18px}.roof-wizard-actions button{cursor:pointer}@media(max-width:800px){.roof-wizard-layout{grid-template-columns:1fr}.roof-preview-panel{position:static}.roof-wizard-actions{margin-top:18px}}@media(max-width:420px){.roof-wizard-panel,.roof-preview-panel{padding:19px}.roof-steps li{font-size:0}.roof-steps li span{font-size:12px}.roof-choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.roof-choices span{font-size:12px}.roof-wizard-actions .primary-button,.roof-wizard-actions .secondary-button{flex:1;padding-inline:10px;font-size:12px;white-space:nowrap}}.hip-steps{grid-template-columns:repeat(5,minmax(0,1fr))}.hip-plan-svg{width:100%;max-height:315px;margin:14px auto 8px;overflow:visible}.hip-plan-svg text{fill:var(--text-secondary);font:12px system-ui,sans-serif}.hip-trapezoid{fill:#0a84ff2b}.hip-triangle{fill:#bf5af221}.tent-apex{fill:var(--brand-cyan)}.hip-edge,.hip-intro-edges{stroke:var(--brand-cyan);stroke-width:2.5;fill:none;stroke-linecap:round}.hip-intro-edges{stroke-width:3}.hip-intro-lead{color:var(--text-primary)!important;font-size:20px;font-weight:700;line-height:1.35}.hip-same-toggle{display:flex;align-items:center;gap:12px;min-height:48px;margin-top:20px;font-size:14px;font-weight:700;cursor:pointer}.hip-same-toggle input{width:21px;height:21px;min-height:0;accent-color:var(--brand-primary)}.hip-same-toggle input:focus-visible{outline:3px solid var(--brand-cyan);outline-offset:3px}.hip-tent-message{margin-top:22px;padding:16px;border:1px solid rgba(255,159,10,.4);border-radius:15px;color:#ffd397;background:#ff9f0a1a}.hip-tent-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.hip-tent-actions .secondary-button{min-height:44px;padding:8px 12px;font-size:13px;cursor:pointer}.roof-review h3{margin:0 0 8px;font-size:23px;letter-spacing:-.025em}@media(max-width:420px){.hip-steps li{font-size:0}.hip-steps li span{font-size:12px}.hip-tent-actions{display:grid}.hip-tent-actions .secondary-button{width:100%;white-space:normal}}.hip-material-start{margin-top:22px;width:100%;cursor:pointer}.hip-material-breadcrumb{border:0;padding:0;background:none;color:inherit;font:inherit;text-decoration:underline;cursor:pointer}.hip-material-option{display:flex;align-items:center;gap:12px;min-height:46px;margin:17px 0 4px;font-size:14px;font-weight:700;cursor:pointer}.hip-material-option input{width:20px;height:20px;min-height:0;accent-color:var(--brand-primary)}.hip-material-option input:focus-visible{outline:3px solid var(--brand-cyan);outline-offset:3px}.hip-material-preview h2{margin:12px 0 4px;font-size:21px}.hip-material-preview>p{color:var(--text-secondary);font-size:13px}.hip-material-slope-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:20px}.hip-material-slope{min-width:0;padding:10px;border:1px solid var(--border);border-radius:12px;background:#0a84ff0f}.hip-material-slope h3{margin:0;font-size:12px}.hip-material-slope p{margin:0;color:var(--text-secondary);font-size:11px}.hip-material-slope-svg{display:block;width:100%;max-height:135px}.hip-material-roof-plan{display:block;width:100%;max-height:155px;margin:12px auto}.hip-material-eave{stroke:var(--brand-cyan);stroke-width:2}.hip-material-surface{fill:#0a84ff1f}.hip-material-strip{fill:#0a84ff40}.hip-material-strip-alt{fill:#bf5af240}.hip-material-strip-line{stroke:var(--brand-cyan);stroke-width:1}.hip-material-row-line{stroke:var(--brand-violet);stroke-width:1;stroke-dasharray:3 2}.hip-material-outline{fill:none;stroke:var(--text-primary);stroke-width:2}.hip-material-preview-groups{list-style:none;padding:0;margin:8px 0;max-height:200px;overflow-y:auto}.hip-material-preview-groups li{display:flex;justify-content:space-between;gap:12px;padding:5px 0;border-bottom:1px solid var(--border);font-size:12px}.hip-material-preview-groups li span{min-width:0;overflow-wrap:anywhere}.hip-material-result{margin-top:18px}.hip-material-result h3{margin:23px 0 8px;font-size:19px}.hip-material-result p,.hip-material-result li{font-size:14px}.hip-material-result table{width:100%;border-collapse:collapse;font-size:13px}.hip-material-result caption{text-align:left;margin:12px 0;color:var(--text-secondary)}.hip-material-result th,.hip-material-result td{padding:9px 5px;text-align:left;border-bottom:1px solid var(--border)}.hip-material-result th{font-weight:700}.hip-material-result table{display:block;overflow-x:auto}.hip-material-result table th,.hip-material-result table td{white-space:nowrap}.tent-material-result table th,.tent-material-result table td{white-space:normal;overflow-wrap:anywhere}@media(max-width:800px){.hip-material-preview{order:2}.hip-material-layout .roof-wizard-panel{order:1}}@media(max-width:420px){.hip-material-slope-grid{grid-template-columns:1fr}.hip-material-result table{font-size:11px}.hip-material-result th,.hip-material-result td{padding:7px 3px}.hip-material-preview h3{font-size:14px}}.saved-report-panel,.history-card,.history-issues,.report-dialog{background:linear-gradient(145deg,#ffffff17,#ffffff05),var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-final);padding:clamp(18px,3vw,32px);min-width:0}.calculation-report{min-width:0;overflow-wrap:anywhere}.report-heading{margin-bottom:24px}.report-heading :is(h1,h2){font-size:clamp(25px,3vw,36px);letter-spacing:-.03em;line-height:1.15;margin:12px 0}.report-heading time,.history-card time{color:var(--text-secondary);font-size:14px}.report-summary-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.calculation-report h3{font-size:20px;margin:24px 0 14px}.calculation-report dl{margin:0}.calculation-report dl>div{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px;padding:9px 0;border-bottom:1px solid var(--border)}.calculation-report dt{color:var(--text-secondary)}.calculation-report dd{margin:0;font-weight:650;text-align:right}.calculation-report table{width:100%;table-layout:fixed;border-collapse:collapse;text-align:left;margin:18px 0}.calculation-report caption{text-align:left;color:var(--text-secondary);font-size:14px;margin-bottom:12px}.calculation-report th,.calculation-report td{padding:10px 7px;border-bottom:1px solid var(--border);white-space:normal!important;overflow-wrap:anywhere}.report-notes li,.report-materials li{margin:8px 0;line-height:1.5}.report-notes{color:var(--text-secondary)}.report-notes ul,.report-materials ul{padding-left:20px}.report-total{border-top:1px solid var(--border);margin-top:24px}.report-details{margin-top:18px}.report-details summary{cursor:pointer;min-height:44px;color:var(--brand-cyan)}.report-action-panel{border-top:1px solid var(--border);margin-top:24px;padding-top:20px}.report-actions,.history-card-actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.report-actions button{min-height:44px}.report-actions .text-link{font-size:14px}.report-actions button:disabled{opacity:.65;cursor:default}.report-feedback{color:var(--success);min-height:24px}.history-list{list-style:none;margin:0;padding:0;display:grid;gap:16px}.history-card{display:flex;align-items:center;justify-content:space-between;gap:24px}.history-card h2{font-size:24px;margin:8px 0 12px}.history-card p{line-height:1.5}.history-card-actions{flex-shrink:0}.history-issues{margin-bottom:24px}.history-issues h2{font-size:22px}.history-empty{text-align:center}.history-empty .primary-button{margin-top:16px}.report-dialog-backdrop{position:fixed;inset:0;background:#000000bf;z-index:1000;display:grid;place-items:center;padding:16px}.report-dialog{width:min(100%,480px);background:var(--bg-1)}.report-dialog h2{font-size:26px}.report-dialog p{line-height:1.6;overflow-wrap:anywhere}.print-only{display:none}@media(max-width:900px){.header-nav,.header-inner{flex-wrap:wrap}.history-card{align-items:flex-start}.history-card-actions{flex-shrink:1}}@media(max-width:700px){.report-summary-grid{grid-template-columns:1fr}.history-card{flex-direction:column;gap:12px}.history-card-actions{width:100%}.history-card-actions>*{flex:1}.report-actions>*{max-width:100%}}@media(max-width:390px){.calculation-report dl>div{grid-template-columns:1fr;gap:4px}.calculation-report dd{text-align:left}.calculation-report th,.calculation-report td{padding:10px 3px;font-size:13px}.report-actions button{width:100%}.header-nav a{padding:0 7px}.history-card h2{font-size:22px}}@page{size:A4 portrait;margin:15mm}@media print{:root{--text-primary:#111;--text-secondary:#444;--border:#ccc;--brand-cyan:#111}body{background:#fff!important;color:#111!important;font-family:Arial,sans-serif;font-size:10pt}body:has(#report-print-root)>:not(#report-print-root){display:none!important}.screen-only,.site-header,.site-footer,.skip-link,.breadcrumbs,.report-actions{display:none!important}.print-only{display:block!important}.app-shell,.container,.main-content,.saved-report-panel,.calculation-report{width:auto!important;max-width:none!important;padding:0!important;margin:0!important;background:none!important;box-shadow:none!important;border:0!important;filter:none!important;-webkit-backdrop-filter:none!important;backdrop-filter:none!important}.report-heading :is(h1,h2){font-size:20pt}.report-heading .eyebrow{color:#111}.report-summary-grid{display:block}.calculation-report h3{break-after:avoid}.calculation-report dl>div,.calculation-report tr{break-inside:avoid}.calculation-report dl>div{grid-template-columns:1fr 1fr}.calculation-report dd{text-align:right}.calculation-report table{font-size:10pt}.calculation-report thead{display:table-header-group}.calculation-report th,.calculation-report td{color:#111!important;white-space:normal!important}.report-details{display:none}.report-notes{color:#444}.report-heading,.report-total{break-inside:avoid}}.complex-intro{margin:32px 0 24px}.complex-intro h1{font-size:clamp(32px,4vw,52px);letter-spacing:-.035em;line-height:1.15;margin:12px 0}.complex-intro p{max-width:680px;color:var(--text-secondary)}.complex-toolbar,.complex-view-tools{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.complex-toolbar{margin:18px 0}.complex-toolbar button,.complex-view-tools button{min-height:44px;padding:10px 15px}.complex-toolbar button[aria-pressed=true]{border-color:var(--brand-cyan);background:var(--brand-soft)}.complex-page button:disabled{opacity:.45;cursor:default}.complex-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:20px;align-items:start}.complex-canvas-panel,.complex-properties,.complex-save-panel,.complex-next{min-width:0;background:linear-gradient(145deg,#ffffff12,#ffffff04),var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-subtle)}.complex-canvas-panel{overflow:hidden;padding:16px;position:sticky;top:126px}.complex-view-tools{margin-bottom:14px}.complex-view-tools span{font-size:13px;color:var(--text-secondary)}.complex-canvas{width:100%;height:480px;max-width:100%;background:#0b1020;border:1px solid var(--border);border-radius:16px;touch-action:none;-webkit-user-select:none;user-select:none;overscroll-behavior:contain}.complex-canvas.tool-pan{cursor:grab}.complex-canvas.tool-draw{cursor:crosshair}.complex-grid{stroke:#64d2ff24;stroke-width:1;fill:none}.complex-axis{stroke:#64d2ff3d;stroke-width:1;pointer-events:none}.complex-fill{fill:#0a84ff1a;pointer-events:none}.complex-edge{stroke:var(--brand-cyan);stroke-width:2;pointer-events:none}.complex-edge-hit{stroke:transparent;stroke-width:48;cursor:pointer;fill:none}.complex-vertex-hit{fill:transparent;cursor:move}.complex-vertex{fill:var(--bg-1,#0b1020);stroke:var(--brand-cyan);stroke-width:2;pointer-events:none}.complex-dimension,.complex-point-label{font-size:13px;fill:var(--text-primary);paint-order:stroke;stroke:#0b1020;stroke-width:5px;stroke-linejoin:round;pointer-events:none}.complex-point-label{fill:var(--text-secondary);font-size:11px}.complex-empty{font-size:14px;fill:var(--text-secondary);pointer-events:none}.complex-canvas .selected .complex-edge,.complex-canvas g:focus .complex-edge{stroke:var(--warning);stroke-width:4}.complex-canvas .selected .complex-vertex,.complex-canvas g:focus .complex-vertex{fill:var(--warning);stroke:var(--text-primary);stroke-width:3}.complex-canvas g:focus{outline:none}.complex-canvas-caption{color:var(--text-soft);font-size:14px;margin:14px 0}.complex-canvas-caption strong{color:var(--brand-cyan)}.complex-properties{padding:20px}.complex-properties section+section{border-top:1px solid var(--border);margin-top:22px;padding-top:18px}.complex-page h2{font-size:21px;line-height:1.25;margin:0 0 16px}.complex-properties p{font-size:14px}.complex-properties button{width:100%;min-height:44px;margin-top:10px}.complex-properties label{display:block;color:var(--text-soft);font-size:14px;margin-top:10px}.complex-page input:not([type=checkbox]),.complex-page select,.complex-page textarea{width:100%;min-width:0;padding:10px;margin-top:6px}.complex-input-pair{display:grid;grid-template-columns:1fr 1fr;gap:12px}.complex-status{margin:0}.complex-status>div{display:flex;justify-content:space-between;gap:14px;padding:7px 0;border-bottom:1px solid var(--border);font-size:14px}.complex-status dt{color:var(--text-secondary)}.complex-status dd{margin:0;text-align:right;overflow-wrap:anywhere}.complex-valid{color:var(--success)}.complex-invalid{color:var(--warning)}.complex-validation{padding-left:20px;color:var(--text-secondary);font-size:14px}.complex-check{display:flex!important;gap:10px;align-items:center;min-height:44px}.complex-check input{width:22px;height:22px;min-height:22px;flex:none;accent-color:var(--brand-primary)}.complex-selection{margin-top:14px}.complex-page .roof-error p{color:var(--danger)}.complex-save-panel,.complex-next{padding:24px;margin-top:24px}.complex-save-panel p,.complex-next p{color:var(--text-secondary);max-width:780px}.complex-save-panel details{margin-top:16px}.complex-save-panel summary{cursor:pointer;min-height:44px;color:var(--brand-cyan)}.complex-save-panel textarea{resize:vertical;font:13px/1.5 ui-monospace,monospace;overflow-wrap:anywhere}.complex-save-panel label{display:block}.complex-next{box-shadow:none;background:var(--surface-muted)}@media(max-width:1000px){.complex-layout{grid-template-columns:minmax(0,1fr) 290px;gap:14px}.complex-properties{padding:16px}.complex-canvas-panel{padding:12px}.complex-input-pair{grid-template-columns:1fr;gap:0}}@media(max-width:800px){.complex-layout{grid-template-columns:1fr}.complex-canvas-panel{position:static}.complex-properties{display:grid;grid-template-columns:1fr 1fr;gap:20px}.complex-properties section+section{margin-top:0}.complex-properties section{border-top:0!important;padding-top:0!important}.complex-canvas{height:430px}.complex-input-pair{grid-template-columns:1fr 1fr;gap:12px}}@media(max-width:480px){.complex-properties{grid-template-columns:1fr}.complex-properties section+section{border-top:1px solid var(--border)!important;padding-top:20px!important}.complex-canvas{height:360px}.complex-canvas-panel{padding:10px}.complex-save-panel,.complex-next{padding:18px}.complex-toolbar button{flex:1 1 auto}.complex-intro{margin-top:24px}.complex-view-tools span{width:100%}.complex-canvas-caption{font-size:13px}.complex-save-panel .complex-toolbar button{width:100%}.complex-canvas .complex-dimension{font-size:12px}}.roof-topology .roof-inline-type{font-size:14px;color:var(--text-secondary);min-width:180px}.roof-inline-type select{min-height:44px}.roof-face-fill{fill:var(--brand-cyan);stroke:var(--brand-primary);stroke-width:1}.roof-face-fill.selected{fill:var(--warning);opacity:.3!important}.roof-line-ridge{stroke:var(--brand-cyan);stroke-width:3}.roof-line-hip{stroke:var(--text-primary);stroke-dasharray:10 5}.roof-line-valley{stroke:var(--warning);stroke-dasharray:3 5;stroke-width:3}.roof-line-boundary{stroke:var(--text-secondary)}.roof-line-label{font-size:11px}.roof-edge-refs{overflow-wrap:anywhere;font-size:12px;color:var(--text-secondary)}.roof-isometric{width:100%;max-height:420px;background:#0b1020;border:1px solid var(--border);border-radius:16px;margin-top:20px}.roof-review-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.roof-face-summary{display:flex;flex-wrap:wrap;gap:10px}.roof-face-summary button{min-height:44px;white-space:normal;overflow-wrap:anywhere}.roof-solve-review .complex-status{max-width:680px}.roof-topology-canvas g:focus .roof-face-fill{fill:var(--warning);opacity:.3!important}.roof-topology .complex-properties section{min-width:0}@media(max-width:480px){.roof-topology .roof-inline-type{width:100%;min-width:0}.roof-review-grid{grid-template-columns:1fr}.roof-face-summary button{width:100%}.roof-isometric{min-height:220px}}.complex-material-detail summary{min-height:44px;cursor:pointer;overflow-wrap:anywhere}.complex-material-plan{min-height:220px}.complex-material-detail ul{padding-left:18px;overflow-wrap:anywhere}.calculator-home-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.calculator-home-grid .module-card{min-width:0;gap:18px;flex-wrap:wrap}.calculator-home-grid .module-icon{width:80px;height:80px}.calculator-home-grid .module-icon svg{width:70px}.calculator-home-grid .module-info{min-width:0;flex:1}.calculator-home-grid .module-action{width:100%;margin-left:98px}.calculator-home-grid .module-info strong{font-size:26px}.calculator-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;align-items:start}.calculator-form,.calculator-result{min-width:0;padding:clamp(18px,3vw,32px)}.calculator-section{border:0;border-top:1px solid var(--border);padding:20px 0;margin:22px 0 0;min-width:0}.calculator-section legend{font-size:20px;font-weight:650;padding:0 10px 0 0}.calculator-page select,.calculator-opening>input{width:100%;min-width:0;min-height:50px;padding:12px;color:var(--text-primary);background:var(--surface-muted);border:1px solid var(--border);border-radius:var(--radius-sm)}.calculator-page select option{background:var(--surface)}.calculator-page button{min-height:44px}.calculator-repeat-row{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:12px}.calculator-repeat-row .roof-field{margin:12px 0}.calculator-repeat-row button{align-self:center}.calculator-input-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.calculator-opening{padding:16px 0;border-bottom:1px solid var(--border);margin-bottom:16px}.calculator-opening>label{display:block;color:var(--text-secondary);margin-bottom:8px}.calculator-form-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.calculator-report>section{margin-top:24px}.calculator-report .report-heading{margin-bottom:16px}.calculator-result .report-actions{gap:10px}.calculator-result .report-actions button{flex:1 1 auto}.calculator-report .report-total{border-top:2px solid var(--brand-cyan);padding-top:8px}@media(max-width:900px){.calculator-layout,.calculator-home-grid{grid-template-columns:1fr}}@media(max-width:480px){.calculator-input-pair{grid-template-columns:1fr;gap:0}.calculator-home-grid .module-action{margin-left:0}.calculator-repeat-row{grid-template-columns:1fr;gap:0;margin-bottom:16px}.calculator-repeat-row button{justify-self:start}.calculator-form-actions>*{width:100%}.calculator-report dl>div{grid-template-columns:1fr;gap:4px}.calculator-report dd{text-align:left}.calculator-home-grid .module-info strong{font-size:23px}}.drywall-tabs{display:flex;gap:8px;border-bottom:1px solid var(--border);margin:0 0 24px;padding-bottom:12px}.drywall-tabs button{flex:1;max-width:220px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-muted);color:var(--text-primary);padding:12px 18px;font:inherit}.drywall-tabs button[aria-selected=true]{border-color:var(--brand-cyan);background:var(--surface);color:var(--brand-cyan)}.profile-toggle{display:flex;align-items:center;gap:12px;min-height:44px;cursor:pointer}.profile-toggle input{width:20px;height:20px;accent-color:var(--brand-cyan);flex-shrink:0}@media(max-width:360px){.calculator-modes-cement-cps>.roof-choice-field:first-child .roof-choices{grid-template-columns:1fr}}.ceiling-mode-picker{border:0;padding:0;margin:0 0 1.5rem;min-width:0}.ceiling-mode-picker legend{font-weight:700;margin-bottom:.75rem}.ceiling-mode-picker>div,.ceiling-reserve-presets{display:flex;flex-wrap:wrap;gap:.5rem}.ceiling-mode-picker button[aria-pressed=true]{background:var(--surface);color:var(--brand-cyan);border-color:var(--brand-cyan)}.ceiling-layout label,.ceiling-layout dt,.ceiling-layout dd{overflow-wrap:anywhere}.ceiling-layout .profile-toggle{align-items:flex-start}.ceiling-layout select{width:100%;min-width:0}.home-welcome .hero-copy{max-width:100%}.work-shortcuts{display:flex;flex-wrap:wrap;gap:12px}.work-shortcuts a{flex:1 1 210px;justify-content:space-between}.calculator-work-group{margin-top:32px;scroll-margin-top:160px}.calculator-work-group h3{font-size:24px;margin:0 0 18px}.modules-section{scroll-margin-top:160px}