:root{--ink:#141414;--paper:#ffffff;--hero:#191921;--accent:#ff5a36;
--accent-soft:#ffe9e3;--muted:#8a8a93;--radius:999px}
*{box-sizing:border-box}
body{margin:0;font-family:Verdana,Geneva,Tahoma,sans-serif;color:var(--ink);
background:var(--paper);line-height:1.55}
.display{font-family:"Trebuchet MS","Arial Narrow",Arial,sans-serif;
font-weight:800;letter-spacing:-.5px;text-transform:uppercase}
.topbar{position:sticky;top:0;z-index:10;background:#fff;border-bottom:3px solid var(--ink)}
.topbar-inner{max-width:1080px;margin:0 auto;padding:12px 20px;display:flex;
align-items:center;justify-content:space-between}
.logo{font-family:"Trebuchet MS","Arial Narrow",Arial,sans-serif;font-weight:800;
font-size:1.25rem;text-transform:uppercase;text-decoration:none;color:var(--ink)}
.logo em{font-style:normal;color:var(--accent)}
.topbar nav a{margin-left:16px;color:var(--ink);text-decoration:none;
font-weight:700;font-size:.8rem;text-transform:uppercase}
.topbar nav a:hover{color:var(--accent)}
.hero{background:var(--hero);color:#fff;padding:56px 0}
.hero-inner{max-width:1080px;margin:0 auto;padding:0 20px;display:grid;
grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.hero h1{font-size:3rem;line-height:1.05;margin:0 0 14px;color:#fff}
.hero h1 span{color:var(--accent)}
.hero p{color:#cfcfd6;font-size:1.05rem}
.calc{background:#fff;color:var(--ink);border-radius:18px;padding:28px;
box-shadow:0 18px 50px rgba(0,0,0,.35)}
.calc h2{margin:0 0 16px;font-size:1.2rem;text-transform:uppercase;
font-family:"Trebuchet MS",Arial,sans-serif}
.calc label{display:block;font-size:.78rem;font-weight:700;text-transform:uppercase;
margin:12px 0 6px;color:#555}
.calc input{width:100%;padding:12px 14px;border:2px solid #141414;border-radius:12px;
font-size:1rem;font-family:inherit}
.calc button{margin-top:18px;width:100%;background:var(--accent);color:#fff;
border:0;border-radius:var(--radius);padding:14px;font-size:1rem;font-weight:800;
text-transform:uppercase;cursor:pointer;letter-spacing:.5px}
.calc button:hover{background:#e04a28}
.calc-out{margin-top:16px;background:var(--accent-soft);border-radius:12px;padding:16px}
.calc-out .m{font-size:2.1rem;font-weight:800}
.calc-out small{color:#555}
.stats{background:#fff;border-bottom:3px solid var(--ink)}
.stats-inner{max-width:1080px;margin:0 auto;padding:26px 20px;display:grid;
grid-template-columns:repeat(3,1fr);gap:20px;text-align:center}
.stats b{font-size:1.8rem;display:block}
.stats span{color:var(--muted);font-size:.85rem;text-transform:uppercase;letter-spacing:1px}
.features{max-width:1080px;margin:0 auto;padding:48px 20px;display:grid;
grid-template-columns:repeat(3,1fr);gap:24px}
.feature h3{text-transform:uppercase;font-size:1rem;margin:0 0 8px}
.feature p{color:#555;font-size:.95rem}
footer.site{background:var(--ink);color:#b9b9c2;padding:40px 0 24px}
.foot-grid{max-width:1080px;margin:0 auto;padding:0 20px;display:grid;
grid-template-columns:2fr 1fr 1fr;gap:24px}
.foot-grid h4{color:#fff;text-transform:uppercase;font-size:.8rem;letter-spacing:1px}
.foot-grid a{color:#b9b9c2;text-decoration:none;display:block;margin:6px 0;font-size:.9rem}
.foot-grid a:hover{color:var(--accent)}
.foot-base{max-width:1080px;margin:24px auto 0;padding:16px 20px 0;
border-top:1px solid #333;display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
font-size:.8rem;color:#8a8a93}
.foot-base a{color:#8a8a93}
.article{max-width:760px;margin:0 auto;padding:48px 20px}
.article h1{font-size:2.2rem}
@media(max-width:820px){.hero-inner{grid-template-columns:1fr}
.hero h1{font-size:2.2rem}.features{grid-template-columns:1fr}
.stats-inner{grid-template-columns:1fr 1fr}.foot-grid{grid-template-columns:1fr}}

/* ---- Square Footage Calculator tool styles ---- */
.ftin{display:flex;align-items:center;gap:8px}
.ftin input{width:100%;padding:12px 14px;border:2px solid #141414;border-radius:12px;font-size:1rem;font-family:inherit}
.ftin span{font-weight:700;font-size:.85rem;color:#555}
.tool{background:#f7f7f9;padding:56px 0}
.tool-inner{max-width:1080px;margin:0 auto;padding:0 20px}
.tool h2{margin:0 0 8px;font-size:1.8rem}
.tool-sub{color:#555;max-width:640px;margin:0 0 28px}
.tool-grid{display:grid;grid-template-columns:1fr 340px;gap:24px;align-items:start}
.rooms-card{background:#fff;border:2px solid #141414;border-radius:18px;padding:24px}
.room{border:2px solid #e3e3e8;border-radius:14px;padding:18px;margin-bottom:18px}
.room-head{display:grid;grid-template-columns:1fr 1fr auto;gap:10px;margin-bottom:14px}
.room-name,.room-shape{padding:10px 12px;border:2px solid #141414;border-radius:10px;font-size:1rem;font-family:inherit;background:#fff}
.room-remove{background:#fff;border:2px solid #141414;border-radius:10px;padding:10px 14px;font-weight:700;cursor:pointer;text-transform:uppercase;font-size:.75rem;letter-spacing:.5px}
.room-remove:hover{background:#141414;color:#fff}
.room-body{display:grid;grid-template-columns:1fr 200px;gap:18px;align-items:start}
.room-dims .dim{display:block;margin-bottom:10px}
.room-dims .dim>span{display:block;font-size:.78rem;font-weight:700;text-transform:uppercase;color:#555;margin-bottom:6px}
.room-diagram{background:#fafafb;border:1px dashed #c9c9d2;border-radius:10px;padding:8px}
.room-diagram svg{width:100%;height:auto;display:block}
.room-area{margin-top:12px;padding:10px 14px;background:var(--accent-soft);border-radius:10px;font-size:1.05rem}
.room-area b{font-size:1.25rem}
.btn-add{width:100%;background:var(--accent);color:#fff;border:0;border-radius:var(--radius);padding:14px;font-size:1rem;font-weight:800;text-transform:uppercase;cursor:pointer;letter-spacing:.5px}
.btn-add:hover{background:#e04a28}
.empty{color:#8a8a93;text-align:center;padding:24px 0}
.summary-card{background:#fff;border:2px solid #141414;border-radius:18px;padding:24px;position:sticky;top:80px}
.summary-card h3{margin:0 0 14px;font-size:1.1rem;text-transform:uppercase;font-family:"Trebuchet MS",Arial,sans-serif}
.sum-row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid #eee;color:#555}
.sum-row b{color:var(--ink)}
.waste-label{display:block;font-size:.78rem;font-weight:700;text-transform:uppercase;margin:16px 0 6px;color:#555}
.waste-label .hint{display:block;text-transform:none;font-weight:400;font-size:.8rem;color:#8a8a93;margin-top:2px}
.waste-row{display:flex;align-items:center;gap:8px}
.waste-row input{width:110px;padding:10px 12px;border:2px solid #141414;border-radius:10px;font-size:1rem;font-family:inherit}
.waste-row span{font-weight:800;font-size:1.1rem}
.order-box{margin-top:16px;background:var(--accent-soft);border-radius:12px;padding:16px}
.order-box .m{font-size:2rem;font-weight:800}
.order-box small{color:#555}
.unit-toggle{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:16px}
.unit-toggle button{background:#fff;border:2px solid #141414;border-radius:10px;padding:10px 0;font-weight:700;cursor:pointer;font-size:.9rem}
.unit-toggle button.on{background:#141414;color:#fff}
.unit-hint{font-size:.82rem;color:#8a8a93;margin:10px 0 0}
.guide{background:#fff;padding:56px 0}
.guide-inner{max-width:760px;margin:0 auto;padding:0 20px}
.guide h2{font-size:1.6rem;margin:36px 0 12px}
.guide h2:first-child{margin-top:0}
.guide h3{margin:24px 0 6px;font-size:1.05rem}
.guide p{color:#444}
.guide a{color:var(--accent);font-weight:700}
.faq details{border:1px solid #e3e3e8;border-radius:10px;padding:12px 16px;margin-bottom:10px}
.faq summary{font-weight:700;cursor:pointer}
.faq p{margin:8px 0 0;color:#555}
@media(max-width:900px){.tool-grid{grid-template-columns:1fr}.summary-card{position:static}}
@media(max-width:600px){.room-head{grid-template-columns:1fr}.room-body{grid-template-columns:1fr}.room-diagram{max-width:260px}}