@keyframes heroPulse{0%,to{transform:scale(1);opacity:.6}50%{transform:scale(1.2);opacity:.25}}@keyframes pulseRing{0%,to{transform:scale(1);opacity:.6}50%{transform:scale(1.15);opacity:.25}}@keyframes slideIn{0%{opacity:0;transform:translateY(25px)}to{opacity:1;transform:translateY(0)}}@keyframes slide-up{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes shimmer{0%{background-position:-200%0}to{background-position:200%0}}@font-face{font-family:"Inter";font-style:normal;font-weight:100 900;font-display:swap;src:local("Inter");size-adjust:107%;ascent-override:90%;descent-override:22%;line-gap-override:0%}:root{--primary:#6366f1;--primary-dark:#4f46e5;--primary-light:#818cf8;--primary-glow:rgba(99,102,241,0.35);--primary-bg:rgba(99,102,241,0.06);--accent-1:#f43f5e;--accent-2:#06b6d4;--accent-3:#10b981;--accent-4:#f59e0b;--accent-5:#8b5cf6;--accent-6:#ec4899;--surface:#ffffff;--surface-alt:#f8fafc;--surface-warm:#fffbf5;--border:#e2e8f0;--border-light:#f1f5f9;--border-focus:rgba(99,102,241,0.3);--text-dark:#0f172a;--text-heading:#1e293b;--text-body:#334155;--text-secondary:#64748b;--text-muted:#64748b;--radius-xs:6px;--radius-sm:10px;--radius-md:14px;--radius-lg:20px;--radius-xl:28px;--radius-full:9999px;--shadow-xs:0 1px 3px rgba(0,0,0,0.04);--shadow-sm:0 2px 8px rgba(0,0,0,0.05);--shadow-md:0 4px 24px rgba(0,0,0,0.08);--shadow-lg:0 12px 48px rgba(0,0,0,0.12);--shadow-xl:0 20px 60px rgba(0,0,0,0.15);--shadow-glow:0 0 40px rgba(99,102,241,0.2);--shadow-glow-lg:0 0 80px rgba(99,102,241,0.25);--ease:cubic-bezier(0.4,0,0.2,1);--ease-bounce:cubic-bezier(0.34,1.56,0.64,1);--font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;--gradient-primary:linear-gradient(135deg,#6366f1 0%,#8b5cf6 50%,#a78bfa 100%);--gradient-warm:linear-gradient(135deg,#f43f5e 0%,#f97316 100%);--gradient-cool:linear-gradient(135deg,#06b6d4 0%,#3b82f6 100%);--gradient-fresh:linear-gradient(135deg,#10b981 0%,#06b6d4 100%);--gradient-hero:linear-gradient(135deg,#eef2ff 0%,#faf5ff 25%,#fff1f2 50%,#ecfeff 75%,#ecfdf5 100%)}*,::after,::before{box-sizing:border-box;margin:0;padding:0}.skip-link{position:absolute;top:-100%;left:50%;transform:translateX(-50%);background:var(--primary);color:#fff;padding:.75rem 1.5rem;border-radius:var(--radius-full);font-weight:700;font-size:.85rem;z-index:9999;transition:top .3s var(--ease);text-decoration:none;box-shadow:0 4px 12px rgba(99,102,241,.3)}.skip-link:focus{outline:3px solid var(--primary);outline-offset:2px}html{scroll-behavior:smooth}body{font-family:var(--font);color:var(--text-body);line-height:1.7;background:var(--surface);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}img{max-width:100%;height:auto;display:block;content-visibility:auto}a{text-decoration:none;transition:color .25s var(--ease)}a:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:2px}ul{list-style:none}button{cursor:pointer;font-family:inherit}button:focus-visible{outline:2px solid var(--primary);outline-offset:2px}input,select,textarea{font-family:inherit}input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-color:var(--primary)}.hero-card h3,h1,h2,h3,h4{font-weight:800;color:var(--text-heading)}.hero-card h3,h3{font-weight:700}h1,h2,h3,h4{line-height:1.15;letter-spacing:-.03em}h3{font-size:1.15rem}h1{font-size:clamp(2.5rem,5vw,4.25rem)}h2{font-size:clamp(1.8rem,3vw,2.5rem)}p{color:var(--text-secondary);margin-bottom:1rem;text-wrap:pretty}.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}.section{padding:5.5rem 0}.header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.88);backdrop-filter:blur(28px) saturate(200%);-webkit-backdrop-filter:blur(28px) saturate(200%);border-bottom:1px solid rgba(0,0,0,.05);padding:.75rem 0;transition:box-shadow .3s var(--ease)}.header.scrolled{box-shadow:0 4px 30px rgba(0,0,0,.06)}.header .container{display:flex;align-items:center;justify-content:space-between}.hero h1,.logo{color:var(--text-dark)}.logo{font-size:1.6rem;font-weight:900;letter-spacing:-.04em;gap:.4rem}.logo,.logo-icon,.nav{display:flex;align-items:center}.logo span,.logo-icon{background:var(--gradient-primary)}.logo-icon{width:36px;height:36px;border-radius:var(--radius-sm);justify-content:center;color:#fff;font-weight:900;font-size:1rem;letter-spacing:0}.logo span{-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.nav{gap:.25rem}.mobile-menu-btn,.nav a{border-radius:var(--radius-sm);align-items:center}.nav a{font-weight:500;color:var(--text-secondary);padding:.5rem 1rem;position:relative;transition:color .2s,background .2s;min-height:44px;display:inline-flex}.nav a.active,.nav a:hover{color:var(--primary);background:var(--primary-bg)}.mobile-menu-btn{display:none;background:0 0;border:0;color:var(--text-dark);padding:.5rem;transition:background .2s,transform .2s;min-width:48px;min-height:48px;justify-content:center}.mobile-menu-btn:hover{background:var(--surface-alt);transform:scale(1.05)}.mobile-menu-btn:active{transform:scale(.95)}.mobile-menu-btn svg{width:24px;height:24px}.menu-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.3);z-index:98;backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px)}.menu-overlay.active{display:block}.hero{padding:6rem 0 8rem;background:linear-gradient(135deg,#eef2ff 0,#faf5ff 25%,#fff1f2 50%,#ecfeff 75%,#ecfdf5 100%);position:relative;overflow:hidden}.hero .container{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:5rem;align-items:center}.hero-content{opacity:1}.hero-badge{display:inline-flex;align-items:center;gap:.5rem;padding:.55rem 1.3rem;background:var(--primary);color:#fff;border-radius:var(--radius-full);font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;margin-bottom:1.75rem;border:0}.hero h1{margin-bottom:1.5rem;font-size:clamp(2.25rem,4.5vw,3.5rem);line-height:1.15;letter-spacing:-.03em;font-weight:800}.hero-desc{font-size:1.125rem;color:var(--text-secondary);margin-bottom:2.5rem;max-width:480px;line-height:1.7}.hero-actions{display:flex;gap:1rem;flex-wrap:wrap}.hero-cta,.hero-cta-secondary{display:inline-flex;align-items:center;gap:.75rem;padding:.9rem 2rem;border-radius:var(--radius-md);font-weight:600;font-size:.95rem;transition:all .2s var(--ease);min-height:48px;text-decoration:none}.hero-cta{background:var(--primary);color:#fff}.hero-cta:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 4px 12px rgba(99,102,241,.3);color:#fff}.hero-cta-secondary{background:0 0;color:var(--text-heading);border:1px solid var(--border)}.hero-cta-secondary:hover{background:var(--surface-alt);border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}.hero-visual{opacity:1}.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.hero-card{background:#fff;border-radius:var(--radius-lg);padding:1.5rem;box-shadow:0 1px 3px rgba(0,0,0,.04);border:1px solid var(--border-light);transition:all .25s var(--ease);position:relative}.hero-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(0,0,0,.08);border-color:rgba(99,102,241,.1)}.hero-card-icon{width:48px;height:48px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin-bottom:1rem;background:var(--surface-alt)}.hero-card h3{font-size:.9rem;margin-bottom:.25rem}.hero-card p{font-size:.8rem;color:var(--text-muted);margin:0}.categories-section{padding:3rem 0 4rem;background:linear-gradient(180deg,var(--surface-alt) 0%,var(--surface) 50%,var(--surface-alt) 100%);position:relative}.categories-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}.category-card{display:flex;align-items:center;gap:1rem;padding:1.25rem 1.5rem;background:#fff;border-radius:var(--radius-lg);border:1px solid var(--border-light);text-decoration:none;transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);box-shadow:var(--shadow-sm);position:relative;overflow:hidden}.category-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--cat-gradient);transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease)}.category-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(99,102,241,.15)}.calc-card:hover::before,.category-card:hover::before,.feature-card:hover::after,.quick-ref-item:hover::before{transform:scaleX(1)}.category-card:nth-child(1){--cat-gradient:var(--gradient-warm)}.category-card:nth-child(2){--cat-gradient:var(--gradient-cool)}.category-card:nth-child(3){--cat-gradient:var(--gradient-fresh)}.category-card:nth-child(4){--cat-gradient:linear-gradient(135deg,#f59e0b,#ef4444)}.category-card:nth-child(5){--cat-gradient:linear-gradient(135deg,#64748b,#475569)}.category-card:nth-child(6){--cat-gradient:linear-gradient(135deg,#10b981,#34d399)}.category-card:nth-child(7){--cat-gradient:linear-gradient(135deg,#f97316,#fb923c)}.category-card:nth-child(8){--cat-gradient:linear-gradient(135deg,#ec4899,#f472b6)}.category-icon{width:52px;height:52px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.5rem;flex-shrink:0;transition:transform .3s var(--ease)}.category-card:nth-child(1) .category-icon{background:linear-gradient(135deg,#fff1f2,#ffe4e6)}.category-card:nth-child(2) .category-icon{background:linear-gradient(135deg,#ecfeff,#cffafe)}.category-card:nth-child(3) .category-icon{background:linear-gradient(135deg,#ecfdf5,#d1fae5)}.category-card:nth-child(4) .category-icon{background:linear-gradient(135deg,#fffbeb,#fef3c7)}.category-card:nth-child(5) .category-icon{background:linear-gradient(135deg,#f1f5f9,#e2e8f0)}.category-card:nth-child(6) .category-icon{background:linear-gradient(135deg,#ecfdf5,#d1fae5)}.category-card:nth-child(7) .category-icon{background:linear-gradient(135deg,#fff7ed,#ffedd5)}.category-card:nth-child(8) .category-icon{background:linear-gradient(135deg,#fce7f3,#fbcfe8)}.calc-card:hover .calc-card-icon,.category-card:hover .category-icon{transform:scale(1.08)}.category-info h3{font-size:.95rem;font-weight:700;color:var(--text-heading);margin-bottom:.15rem}.category-info p{font-size:.8rem;color:var(--text-muted);margin:0;line-height:1.4}.section-header{text-align:center;margin-bottom:3.5rem}.section-tag{display:inline-flex;align-items:center;gap:.5rem;padding:.4rem 1.1rem;background:var(--gradient-primary);color:#fff;border-radius:var(--radius-full);font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;margin-bottom:1.1rem;box-shadow:0 3px 12px var(--primary-glow);transition:transform .3s var(--ease)}.section-tag:hover{transform:scale(1.05)}.section-header h2{margin-bottom:.75rem;letter-spacing:-.03em}.section-header p{font-size:1.1rem;color:var(--text-secondary);max-width:550px;margin:0 auto}.calc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.25rem}.home-calc-section .calc-grid{grid-template-columns:repeat(3,1fr);max-width:960px;margin:0 auto}.home-calc-section .calc-card{padding:1.5rem}.home-calc-section .calc-card-icon{width:56px;height:56px;font-size:1.6rem;margin-bottom:1.25rem;border-radius:var(--radius-lg)}.home-calc-section .calc-card h3{font-size:1.05rem;margin-bottom:.5rem}.home-calc-section .calc-card p{font-size:.88rem;line-height:1.6;margin-bottom:1.25rem}.calc-card{background:#fff;border-radius:var(--radius-xl);padding:1.75rem;border:1px solid var(--border-light);position:relative;overflow:hidden;transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);display:flex;flex-direction:column;text-decoration:none;box-shadow:var(--shadow-sm)}.calc-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--card-accent);transform:scaleX(0);transform-origin:left;transition:transform .4s var(--ease)}.calc-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:rgba(99,102,241,.12)}.calc-card:nth-child(1){--card-accent:var(--gradient-primary);--card-accent-bg:rgba(99,102,241,0.03)}.calc-card:nth-child(2){--card-accent:linear-gradient(90deg,#64748b,#475569);--card-accent-bg:rgba(100,116,139,0.03)}.calc-card:nth-child(3){--card-accent:var(--gradient-cool);--card-accent-bg:rgba(6,182,212,0.03)}.calc-card:nth-child(4){--card-accent:linear-gradient(90deg,#8b5cf6,#a78bfa);--card-accent-bg:rgba(139,92,246,0.03)}.calc-card:nth-child(5){--card-accent:var(--gradient-warm);--card-accent-bg:rgba(244,63,94,0.03)}.calc-card:nth-child(6){--card-accent:linear-gradient(90deg,#0ea5e9,#38bdf8);--card-accent-bg:rgba(14,165,233,0.03)}.calc-card:nth-child(7){--card-accent:var(--gradient-fresh);--card-accent-bg:rgba(16,185,129,0.03)}.calc-card:nth-child(8){--card-accent:linear-gradient(90deg,#f97316,#fb923c);--card-accent-bg:rgba(249,115,22,0.03)}.calc-card:nth-child(9){--card-accent:linear-gradient(90deg,#eab308,#facc15);--card-accent-bg:rgba(234,179,8,0.03)}.calc-card:nth-child(10){--card-accent:linear-gradient(90deg,#0ea5e9,#38bdf8);--card-accent-bg:rgba(14,165,233,0.03)}.calc-card:nth-child(11){--card-accent:linear-gradient(90deg,#ec4899,#f472b6);--card-accent-bg:rgba(236,72,153,0.03)}.calc-card-icon{width:56px;height:56px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.6rem;margin-bottom:1.25rem;position:relative;z-index:1;transition:transform .3s var(--ease)}.calc-card:nth-child(1) .calc-card-icon{background:linear-gradient(135deg,#eef2ff,#e0e7ff)}.calc-card:nth-child(2) .calc-card-icon{background:linear-gradient(135deg,#f1f5f9,#e2e8f0)}.calc-card:nth-child(3) .calc-card-icon{background:linear-gradient(135deg,#ecfeff,#cffafe)}.calc-card:nth-child(4) .calc-card-icon{background:linear-gradient(135deg,#f5f3ff,#ede9fe)}.calc-card:nth-child(5) .calc-card-icon{background:linear-gradient(135deg,#fff1f2,#ffe4e6)}.calc-card:nth-child(6) .calc-card-icon{background:linear-gradient(135deg,#f0f9ff,#e0f2fe)}.calc-card:nth-child(7) .calc-card-icon{background:linear-gradient(135deg,#ecfdf5,#d1fae5)}.calc-card:nth-child(8) .calc-card-icon{background:linear-gradient(135deg,#fff7ed,#ffedd5)}.calc-card:nth-child(9) .calc-card-icon{background:linear-gradient(135deg,#fef9c3,#fde68a)}.calc-card:nth-child(10) .calc-card-icon{background:linear-gradient(135deg,#e0f2fe,#bae6fd)}.calc-card:nth-child(11) .calc-card-icon{background:linear-gradient(135deg,#fce7f3,#fbcfe8)}.calc-card[href*=bathroom-remodel] .calc-card-icon{background:linear-gradient(135deg,#e0f2fe,#bae6fd)!important}.calc-card[href*=bathroom-remodel]{--card-accent:linear-gradient(90deg,#0ea5e9,#38bdf8)!important;--card-accent-bg:rgba(14,165,233,0.03)!important}.calc-card h3,.calc-card p{margin-bottom:.5rem;position:relative;z-index:1}.calc-card p{font-size:.875rem;color:var(--text-muted);margin-bottom:1.25rem;line-height:1.6;flex:1}.calc-card-link{font-size:.85rem;font-weight:700;color:var(--primary);display:inline-flex;align-items:center;gap:.35rem;position:relative;z-index:1}.calc-card-link::after{content:"→";transition:transform .25s var(--ease)}.calc-card:hover .calc-card-link{color:var(--primary-dark)}.calc-card:hover .calc-card-link::after{transform:translateX(4px)}.why-section{background:linear-gradient(180deg,var(--surface-alt) 0%,var(--surface) 100%)}.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.25rem}.feature-card{background:#fff;border-radius:var(--radius-xl);padding:2rem 1.5rem;text-align:center;border:1px solid var(--border-light);transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);box-shadow:var(--shadow-sm);position:relative;overflow:hidden}.feature-card::after{content:"";position:absolute;bottom:0;left:0;right:0;height:3px;background:var(--feature-gradient);transform:scaleX(0);transition:transform .4s var(--ease)}.feature-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:rgba(99,102,241,.12)}.feature-card:hover .feature-icon{transform:scale(1.1)}.feature-card:nth-child(1){--feature-gradient:var(--gradient-primary)}.feature-card:nth-child(2){--feature-gradient:var(--gradient-warm)}.feature-card:nth-child(3){--feature-gradient:var(--gradient-fresh)}.feature-card:nth-child(4){--feature-gradient:linear-gradient(90deg,#f59e0b,#f97316)}.feature-icon{width:68px;height:68px;border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;margin:0 auto 1.25rem;transition:transform .3s var(--ease);color:var(--primary)}.feature-card:nth-child(1) .feature-icon{background:linear-gradient(135deg,#eef2ff,#e0e7ff)}.feature-card:nth-child(2) .feature-icon{background:linear-gradient(135deg,#fff1f2,#ffe4e6)}.feature-card:nth-child(3) .feature-icon{background:linear-gradient(135deg,#ecfdf5,#d1fae5)}.feature-card:nth-child(4) .feature-icon{background:linear-gradient(135deg,#fffbeb,#fef3c7)}.feature-card h3,.form-group label{margin-bottom:.5rem;font-size:1.05rem}.feature-card p{font-size:.875rem;color:var(--text-muted);margin:0;line-height:1.6}.calc-hero{background:var(--gradient-hero);padding:3.5rem 0;border-bottom:1px solid var(--border-light);position:relative;overflow:hidden}.calc-hero::before{content:"";position:absolute;top:-100px;right:-100px;width:400px;height:400px;background:radial-gradient(circle,rgba(99,102,241,.06)0,transparent 70%);border-radius:50%;pointer-events:none}.calc-hero h1{font-size:clamp(1.8rem,4vw,2.8rem);margin-bottom:.5rem}.calc-hero p{font-size:1.05rem;max-width:600px}.breadcrumb{display:flex;align-items:center;gap:.5rem;font-size:.85rem;color:var(--text-muted);margin-bottom:1.25rem;flex-wrap:wrap}.breadcrumb a{color:var(--text-secondary);padding:.2rem .4rem;border-radius:var(--radius-xs);transition:all .2s var(--ease);text-decoration:underline;text-decoration-color:rgba(100,116,139,.3);text-underline-offset:2px}.breadcrumb a:hover{color:var(--primary);background:var(--primary-bg);text-decoration-color:var(--primary)}.breadcrumb-separator{color:var(--border);font-size:.9rem}.calc-container{display:grid;grid-template-columns:1fr 1fr;gap:2rem;padding:2.5rem 0 4rem}.calc-form{background:rgba(255,255,255,.95);backdrop-filter:blur(20px);border-radius:var(--radius-xl);padding:2rem;border:1px solid rgba(255,255,255,.8);box-shadow:var(--shadow-lg);position:relative;overflow:hidden}.calc-form h2::before,.calc-form::before{content:"";background:var(--gradient-primary)}.calc-form::before{position:absolute;top:0;left:0;right:0;height:4px}.calc-form h2,.calc-results h2{font-size:1.3rem;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:2px solid var(--border-light);display:flex;align-items:center;gap:.5rem}.calc-form h2::before{width:8px;height:8px;border-radius:50%;flex-shrink:0}.form-group{margin-bottom:1.25rem}.form-group 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