/* ================================================================
   The Line Set — simple, image-led storefront
   Bricolage Grotesque · white ground · copper accent
   ================================================================ */

:root{
  --paper:#ffffff;
  --paper-2:#f5f4f1;
  --ink:#141414;
  --ink-70:rgba(20,20,20,.66);
  --ink-45:rgba(20,20,20,.45);
  --hair:rgba(20,20,20,.13);
  --copper:#b5703a;
  --copper-deep:#5e3318;
  --copper-hi:#c8814a;
  --gutter:clamp(20px,5vw,64px);
  --maxw:1240px;
  --r:16px;
  --font:"Schibsted Grotesk",system-ui,-apple-system,sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{font-family:var(--font);background:var(--paper);color:var(--ink);line-height:1.55;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
::selection{background:var(--copper);color:#fff}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.shell{max-width:var(--maxw);margin:0 auto;padding-inline:var(--gutter)}

.skip-link{position:absolute;left:14px;top:-60px;background:var(--ink);color:#fff;font-size:13px;padding:10px 16px;border-radius:8px;z-index:200;transition:top .15s}
.skip-link:focus{top:12px}

.eyebrow{font-size:12.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--copper)}

/* ---- image placeholder (drop real photos in to replace) ---- */
.ph{position:relative;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#f1f0ec,#e6e5e0);border:1px solid var(--hair);overflow:hidden}
.ph img{width:100%;height:100%;object-fit:cover}
.ph .ph-lab{position:absolute;display:flex;flex-direction:column;align-items:center;gap:10px;color:var(--ink-45);font-size:12px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;text-align:center;padding:18px}
.ph .ph-lab svg{opacity:.45}

/* ---- buttons ---- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-family:inherit;font-size:15px;font-weight:600;padding:14px 26px;border:1.5px solid var(--ink);border-radius:100px;transition:background .2s,color .2s,border-color .2s,transform .15s;cursor:pointer}
.btn .arr{transition:transform .2s}
.btn:hover .arr{transform:translateX(3px)}
.btn--primary{background:var(--copper);border-color:var(--copper);color:#fff}
.btn--primary:hover{background:var(--copper-deep);border-color:var(--copper-deep)}
.btn--ghost{background:transparent;color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:#fff}
.btn--light{background:#fff;border-color:#fff;color:var(--ink)}
.btn--light:hover{background:var(--copper-hi);border-color:var(--copper-hi);color:#fff}

/* ---- header ---- */
header.site{position:sticky;top:0;z-index:60;border-bottom:1px solid var(--hair)}
header.site::before{content:"";position:absolute;inset:0;background:rgba(255,255,255,.86);backdrop-filter:blur(10px) saturate(1.1);-webkit-backdrop-filter:blur(10px) saturate(1.1);z-index:-1;pointer-events:none}
.nav{display:flex;align-items:center;gap:clamp(14px,3vw,40px);height:74px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand img{height:40px;width:auto}
.brand-name{display:flex;flex-direction:column;justify-content:center;line-height:1;gap:3px}
.brand-name .bn-1{font-size:10px;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-45)}
.brand-name .bn-2{font-size:16px;font-weight:800;letter-spacing:.02em;text-transform:uppercase;color:var(--ink);white-space:nowrap}
.navlinks{display:none;margin-left:auto;align-items:center;gap:clamp(20px,3vw,36px)}
@media(min-width:860px){.navlinks{display:flex}}
.navlinks a{font-size:15px;font-weight:500;color:var(--ink-70);transition:color .18s}
.navlinks a:hover,.navlinks a[aria-current="page"]{color:var(--ink)}
.cta-head{display:none}
@media(min-width:860px){.cta-head{display:inline-flex;align-items:center;gap:8px;background:var(--copper);color:#fff;font-weight:600;font-size:14px;padding:11px 20px;border-radius:100px;transition:background .2s}}
.cta-head:hover{background:var(--copper-deep)}
.nav-toggle{display:inline-flex;margin-left:auto;align-items:center;justify-content:center;width:46px;height:42px;border:1.5px solid var(--ink);border-radius:12px;background:#fff;color:var(--ink);cursor:pointer;font-size:16px}
@media(min-width:860px){.nav-toggle{display:none}}
.mobile-menu{display:none;border-bottom:1px solid var(--hair);background:#fff}
.mobile-menu.open{display:block}
@media(min-width:860px){.mobile-menu{display:none!important}}
.mobile-menu a{display:block;padding:16px var(--gutter);border-top:1px solid var(--hair);font-size:16px;font-weight:500;color:var(--ink)}
.mobile-menu a.is-cta{color:var(--copper);font-weight:600}

/* ---- hero ---- */
.hero{padding:clamp(36px,6vw,80px) 0}
.hero-grid{display:grid;grid-template-columns:1fr;gap:clamp(28px,4vw,56px);align-items:center}
@media(min-width:900px){.hero-grid{grid-template-columns:1.02fr .98fr}}
.hero h1{font-size:clamp(40px,6.6vw,78px);font-weight:800;line-height:1.02;letter-spacing:-.03em}
.hero h1 em{color:var(--copper);font-style:normal}
.hero-sub{max-width:46ch;margin-top:22px;font-size:clamp(16px,1.6vw,19px);color:var(--ink-70)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-media{border-radius:var(--r);overflow:hidden}
.hero-media .ph{aspect-ratio:4/3}

/* ---- shop by size ---- */
.finder{background:var(--paper-2);border-top:1px solid var(--hair);border-bottom:1px solid var(--hair)}
.finder-wrap{display:grid;gap:18px;padding:clamp(24px,3.4vw,34px) 0}
@media(min-width:880px){.finder-wrap{grid-template-columns:auto 1fr;align-items:center;gap:clamp(24px,4vw,56px)}}
.finder-title{font-size:clamp(20px,2.4vw,26px);font-weight:700;line-height:1.2}
.finder-title span{display:block;font-size:14px;font-weight:400;color:var(--ink-70);margin-top:4px}
.finder-form{display:grid;grid-template-columns:1fr;gap:14px}
@media(min-width:620px){.finder-form{grid-template-columns:1fr 1fr auto;align-items:end}}
.field label{display:block;font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-45);margin-bottom:8px}
.field select{width:100%;font-family:inherit;font-size:15px;padding:13px 42px 13px 16px;border:1.5px solid var(--hair);border-radius:12px;background:#fff;color:var(--ink);appearance:none;-webkit-appearance:none;cursor:pointer;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path d='M1 1l5 5 5-5' stroke='%23b5703a' stroke-width='1.7' fill='none'/></svg>");
  background-repeat:no-repeat;background-position:right 15px center}
.field select:focus{outline:none;border-color:var(--copper);box-shadow:0 0 0 2px rgba(181,112,58,.18)}
.finder-form .btn{min-height:50px}

/* ---- categories ---- */
.cats-head{padding:clamp(50px,6vw,82px) 0 clamp(22px,3vw,32px)}
.cats-head h2{font-size:clamp(28px,4vw,46px);font-weight:800;letter-spacing:-.025em}
.cats-head p{margin-top:10px;color:var(--ink-70);font-size:16px;max-width:50ch}
.cats{display:grid;grid-template-columns:1fr;gap:clamp(20px,2.5vw,30px);padding-bottom:clamp(20px,3vw,32px)}
@media(min-width:760px){.cats{grid-template-columns:repeat(3,1fr)}}
.cat{display:flex;flex-direction:column;border:1px solid var(--hair);border-radius:var(--r);overflow:hidden;background:#fff;color:inherit;transition:transform .2s ease,box-shadow .2s ease,border-color .2s}
.cat:hover{transform:translateY(-4px);box-shadow:0 22px 46px -26px rgba(0,0,0,.45);border-color:rgba(20,20,20,.22)}
.cat .ph{aspect-ratio:4/3}
.cat-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.cat h3{font-size:22px;font-weight:700;letter-spacing:-.01em;margin-bottom:8px}
.cat p{font-size:15px;color:var(--ink-70);margin-bottom:20px;line-height:1.5}
.cat .go{margin-top:auto;font-weight:600;color:var(--copper);display:inline-flex;align-items:center;gap:8px}
.cat .go .arr{transition:transform .2s}
.cat:hover .go .arr{transform:translateX(4px)}

/* ---- calculator band ---- */
.calc-wrap{padding:clamp(20px,3vw,30px) 0 0}
.calc{background:var(--ink);color:#fff;border-radius:24px;padding:clamp(36px,5.5vw,72px) clamp(24px,4vw,56px);text-align:center}
.calc .eyebrow{color:var(--copper-hi)}
.calc h2{font-size:clamp(28px,4.6vw,56px);font-weight:800;letter-spacing:-.025em;margin:14px auto 16px;max-width:18ch;line-height:1.04}
.calc h2 em{color:var(--copper-hi);font-style:normal}
.calc p{color:rgba(255,255,255,.74);max-width:54ch;margin:0 auto 30px;font-size:16px}

/* ---- breadcrumbs (inner pages) ---- */
.crumbs{font-size:13px;color:var(--ink-45);padding:18px 0}
.crumbs a:hover{color:var(--copper)}
.crumbs .sep{margin:0 8px;color:var(--hair)}
.crumbs [aria-current]{color:var(--ink)}

/* ---- footer ---- */
footer.site{border-top:1px solid var(--hair);padding:clamp(40px,5vw,60px) 0 34px}
.foot-top{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;margin-bottom:34px}
.foot-cols{display:flex;gap:clamp(30px,6vw,72px);flex-wrap:wrap}
.foot-col h4{font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-45);margin-bottom:14px}
.foot-col a{display:block;font-size:15px;color:var(--ink-70);padding:5px 0}
.foot-col a:hover{color:var(--copper)}
.foot-bottom{padding-top:22px;border-top:1px solid var(--hair);font-size:13px;color:var(--ink-45)}

/* ---- subtle load reveal ---- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .7s ease,transform .7s cubic-bezier(.16,1,.3,1)}
.is-in .reveal{opacity:1;transform:none}
.is-in .reveal.d1{transition-delay:.07s}
.is-in .reveal.d2{transition-delay:.14s}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}*{animation:none!important;transition:none!important}}

/* ---- category pages ---- */
.page-head{padding:clamp(8px,2vw,16px) 0 clamp(22px,3vw,30px)}
.page-head h1{font-size:clamp(32px,5vw,54px);font-weight:800;letter-spacing:-.03em;line-height:1.03}
.page-head .lede{margin-top:14px;color:var(--ink-70);font-size:clamp(16px,1.6vw,18px);max-width:64ch;line-height:1.6}
.page-head .lede a{color:var(--copper);font-weight:600}
.filters{display:flex;flex-direction:column;gap:14px;padding:clamp(18px,2.4vw,24px);border:1px solid var(--hair);border-radius:var(--r);background:var(--paper-2);margin-bottom:clamp(22px,3vw,30px)}
.filter-row{display:flex;flex-wrap:wrap;align-items:center;gap:9px}
.filter-row .flabel{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-45);width:78px;flex-shrink:0}
.fchip{font-family:inherit;font-size:13.5px;font-weight:500;padding:8px 14px;border:1.5px solid var(--hair);border-radius:100px;background:#fff;color:var(--ink-70);cursor:pointer;transition:border-color .15s,background .15s,color .15s}
.fchip:hover{border-color:var(--copper);color:var(--ink)}
.fchip.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.filter-summary{font-size:14px;color:var(--ink-45);padding:2px 0 0}
.soon{display:flex;flex-direction:column;align-items:center;text-align:center;gap:12px;padding:clamp(40px,7vw,76px) clamp(20px,4vw,40px);border:1px dashed rgba(20,20,20,.22);border-radius:var(--r);background:var(--paper-2)}
.soon-badge{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--copper)}
.soon h2{font-size:clamp(22px,3vw,30px);font-weight:800;letter-spacing:-.02em}
.soon p{color:var(--ink-70);max-width:48ch;margin:0 auto}
.soon .btn{margin-top:6px}
.guide{max-width:72ch;padding:clamp(40px,6vw,68px) 0 0}
.guide h2{font-size:clamp(24px,3.2vw,34px);font-weight:800;letter-spacing:-.02em;margin-bottom:12px}
.guide h3{font-size:18px;font-weight:700;margin:26px 0 8px}
.guide p{color:var(--ink-70);margin-bottom:14px;line-height:1.6}
.guide ul{color:var(--ink-70);padding-left:20px;margin-bottom:14px;line-height:1.6}
.guide li{margin-bottom:8px}
.guide a{color:var(--copper);font-weight:600}
.faq a{color:var(--copper);font-weight:600}
.guide a,.faq a,.page-head .lede a{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;text-decoration-color:rgba(181,112,58,.45);transition:text-decoration-color .15s}
.guide a:hover,.faq a:hover,.page-head .lede a:hover{text-decoration-color:var(--copper)}
.related{display:grid;grid-template-columns:1fr;gap:14px;padding:clamp(36px,5vw,56px) 0 clamp(20px,3vw,30px)}
@media(min-width:680px){.related{grid-template-columns:1fr 1fr}}
.related a{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:20px 22px;border:1px solid var(--hair);border-radius:var(--r);font-weight:600;transition:border-color .18s,color .18s,transform .18s}
.related a:hover{border-color:var(--copper);color:var(--copper);transform:translateY(-2px)}
.related a .arr{color:var(--copper)}

/* ---- tool pages (calculator, brand lookup) ---- */
.tool-head{padding:clamp(8px,2vw,16px) 0 clamp(22px,3vw,30px)}
.tool-head h1{font-size:clamp(32px,5vw,54px);font-weight:800;letter-spacing:-.03em;line-height:1.03}
.tool-head .lede,.tool-head>p{margin-top:14px;color:var(--ink-70);font-size:clamp(16px,1.6vw,18px);max-width:60ch;line-height:1.6}
.tool-head a{color:var(--copper);font-weight:600}
.tool-grid{display:grid;grid-template-columns:1fr;gap:clamp(20px,3vw,32px);padding-bottom:clamp(12px,2vw,20px)}
@media(min-width:880px){.tool-grid{grid-template-columns:1fr 1fr;align-items:start}}
.tool-form{border:1px solid var(--hair);border-radius:var(--r);padding:clamp(22px,3vw,30px);background:#fff}
.tool-form .field{margin-bottom:22px}
.tool-form .field:last-child{margin-bottom:0}
.field input[type=number]{width:100%;font-family:inherit;font-size:16px;padding:13px 16px;border:1.5px solid var(--hair);border-radius:12px;background:#fff;color:var(--ink)}
.field input:focus{outline:none;border-color:var(--copper);box-shadow:0 0 0 2px rgba(181,112,58,.18)}
.field .hint{font-size:13px;color:var(--ink-45);margin-top:8px;line-height:1.45}
.result{border-radius:var(--r);background:var(--ink);color:#fff;padding:clamp(24px,3vw,32px);position:sticky;top:90px}
.result .eyebrow{color:var(--copper-hi)}
.result-big{font-size:clamp(30px,5vw,48px);font-weight:800;letter-spacing:-.02em;line-height:1.04;margin:10px 0 4px}
.result-len{color:rgba(255,255,255,.7);font-size:15px;margin-bottom:22px}
.result-rows{border-top:1px solid rgba(255,255,255,.16);margin-bottom:22px}
.result-row{display:flex;justify-content:space-between;gap:14px;padding:13px 0;border-bottom:1px solid rgba(255,255,255,.12);font-size:14.5px}
.result-row span:first-child{color:rgba(255,255,255,.6)}
.result-row b{font-weight:600;color:var(--copper-hi);text-align:right}
.result .btn{width:100%}
.result-note{font-size:12.5px;color:rgba(255,255,255,.55);margin-top:16px;line-height:1.55}
.tool-explain{max-width:72ch;padding:clamp(40px,6vw,72px) 0 0}
.tool-explain h2{font-size:clamp(24px,3.2vw,36px);font-weight:800;letter-spacing:-.02em;margin-bottom:14px}
.tool-explain h3{font-size:19px;font-weight:700;margin:30px 0 8px}
.tool-explain p{color:var(--ink-70);margin-bottom:14px;line-height:1.6}
.tool-explain ul{color:var(--ink-70);margin:0 0 14px;padding-left:20px;line-height:1.6}
.tool-explain li{margin-bottom:8px}
.tool-explain a{color:var(--copper);font-weight:600;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;text-decoration-color:rgba(181,112,58,.45);transition:text-decoration-color .15s}
.tool-explain a:hover{text-decoration-color:var(--copper)}
.brand-cards{display:grid;grid-template-columns:1fr;gap:12px;margin:18px 0 6px}
@media(min-width:620px){.brand-cards{grid-template-columns:1fr 1fr}}
.brand-cards a{display:block;padding:18px 20px;border:1px solid var(--hair);border-radius:var(--r);background:var(--paper);text-decoration:none;color:inherit;transition:border-color .18s,transform .18s,box-shadow .18s}
.brand-cards a:hover{border-color:var(--copper);transform:translateY(-2px);box-shadow:0 16px 34px -22px rgba(20,20,20,.55)}
.brand-cards .bc-title{display:flex;align-items:center;justify-content:space-between;gap:10px;font-weight:700;font-size:17px;color:var(--copper)}
.brand-cards .bc-title .arr{font-weight:600;transition:transform .2s}
.brand-cards a:hover .bc-title .arr{transform:translateX(4px)}
.brand-cards .bc-desc{margin-top:6px;font-size:14px;color:var(--ink-70);line-height:1.5}
.ref-table{width:100%;border-collapse:collapse;margin:18px 0;font-size:15px}
.ref-table th,.ref-table td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--hair)}
.ref-table th{font-weight:700;background:var(--paper-2);font-size:13px;letter-spacing:.02em}
.ref-table td b{color:var(--copper)}
.faq{max-width:72ch;padding:clamp(36px,5vw,56px) 0 0}
.faq details{border-top:1px solid var(--hair);padding:18px 0}
.faq details:last-child{border-bottom:1px solid var(--hair)}
.faq summary{font-size:18px;font-weight:700;cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--copper);font-weight:700}
.faq details[open] summary::after{content:"–"}
.faq p{color:var(--ink-70);margin-top:12px;line-height:1.6}
.disclaimer{max-width:72ch;font-size:13px;color:var(--ink-45);padding:clamp(28px,4vw,40px) 0 0;line-height:1.6}

/* ---- header tools dropdown ---- */
.tools-menu{display:none;position:relative}
@media(min-width:860px){.tools-menu{display:inline-flex}}
.tools-trigger{display:inline-flex;align-items:center;gap:7px;font-family:inherit;font-weight:600;font-size:14px;color:#fff;background:var(--copper);border:1px solid var(--copper);padding:11px 18px;border-radius:100px;cursor:pointer;transition:background .2s,border-color .2s}
.tools-trigger:hover{background:var(--copper-deep);border-color:var(--copper-deep)}
.tools-trigger .caret{font-size:11px;transition:transform .2s}
.tools-menu:hover .tools-trigger .caret,.tools-menu.open .tools-trigger .caret{transform:rotate(180deg)}
.tools-drop{position:absolute;top:100%;right:0;margin-top:10px;min-width:196px;background:#fff;border:1px solid var(--hair);border-radius:14px;box-shadow:0 20px 48px -18px rgba(0,0,0,.45);padding:8px;display:none;z-index:90}
.tools-drop::before{content:"";position:absolute;top:-12px;left:0;right:0;height:12px}
.tools-menu:hover .tools-drop,.tools-menu:focus-within .tools-drop,.tools-menu.open .tools-drop{display:block}
.tools-drop a{display:block;padding:11px 14px;border-radius:10px;font-size:14px;font-weight:500;color:var(--ink-70);white-space:nowrap}
.tools-drop a:hover{background:var(--paper-2);color:var(--copper)}

/* ---- mobile optimizations ---- */
.field select{font-size:16px}            /* >=16px prevents iOS zoom-on-focus */
@media(max-width:879px){
  .result{position:static}               /* result card flows instead of sticking on the stacked layout */
}
@media(max-width:600px){
  .hero h1{font-size:32px;line-height:1.07;overflow-wrap:break-word}
  .hero-sub{font-size:16px}
  .ref-table{font-size:14px}
  .ref-table th,.ref-table td{padding:10px 11px}
  .calc h2{font-size:28px}
  .sec-head .rt{text-align:left}
}
@media(max-width:479px){
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .finder-form .btn{width:100%}
}