:root{
  --navy:#173f69;
  --navy-dark:#0f2f52;
  --navy-deep:#0b2340;
  --paper:#f6f0e1;
  --paper-2:#fffaf0;
  --cream:#fbf6eb;
  --card:#fffdf8;
  --orange:#c86a1a;
  --orange-dark:#9e4e10;
  --orange-soft:#ebb071;
  --gold:#efc55a;
  --blue-soft:#dfeaf5;
  --blue-line:#7b92aa;
  --green:#4d8a45;
  --text:#1f2328;
  --muted:#5f6770;
  --border:#24384d;
  --card-border:#b9b0a2;
  --shadow:0 12px 28px rgba(9,30,53,.14);
  --radius:18px;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{margin:0;background:linear-gradient(180deg,#123a63 0 220px,var(--cream) 220px 100%);color:var(--text);font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.6}
a{color:var(--navy-dark);text-decoration-thickness:2px;text-underline-offset:3px}
img{max-width:100%;height:auto}
.wrap{width:min(1380px,calc(100% - 32px));margin:auto}
.skip-link{position:absolute;left:-9999px}
.skip-link:focus{left:12px;top:12px;z-index:999;background:#fff;padding:10px;border-radius:8px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.muted{color:var(--muted)}

/* Header */
.site-header{position:relative;z-index:60;color:#fff}
.header-top{padding:20px 0 10px}
.header-top-inner{display:grid;grid-template-columns:minmax(260px,340px) minmax(280px,1fr) minmax(260px,380px);align-items:center;gap:22px}
.brand{display:flex;align-items:center;gap:14px;color:#fff;text-decoration:none;min-width:0}
.brand-mark{width:74px;height:74px;object-fit:contain;filter:drop-shadow(0 6px 12px rgba(0,0,0,.25))}
.brand-lockup{display:flex;flex-direction:column;min-width:0}
.brand-title{font-family:"Comic Sans MS","Trebuchet MS",cursive;font-size:2rem;line-height:.95;font-weight:900;letter-spacing:.02em;text-transform:uppercase}
.brand-title strong{display:inline-block;color:var(--gold)}
.brand-tagline{margin-top:8px;font-family:"Comic Sans MS","Trebuchet MS",cursive;font-size:1.05rem;color:#cfe7ff}
.guide-banner{display:flex;align-items:flex-end;justify-content:center;gap:16px}
.speech-bubble{background:#fff;color:var(--text);border:3px solid var(--border);border-radius:26px;padding:16px 18px;max-width:255px;box-shadow:var(--shadow);font-family:"Comic Sans MS","Trebuchet MS",cursive;font-size:1.15rem;line-height:1.18;position:relative}
.speech-bubble:after{content:"";position:absolute;right:22px;bottom:-16px;border-width:16px 14px 0 0;border-style:solid;border-color:#fff transparent transparent transparent;filter:drop-shadow(-2px 2px 0 var(--border))}
.speech-bubble strong,.speech-bubble span{display:block}
.guide-portrait{max-height:160px;object-fit:contain;filter:drop-shadow(0 8px 12px rgba(0,0,0,.25))}
.header-tools{display:flex;align-items:center;gap:10px;justify-self:end;min-width:0}
.header-search{display:flex;align-items:stretch;min-width:0;width:min(430px,100%);background:rgba(255,255,255,.96);border:3px solid rgba(13,35,61,.85);border-radius:14px;overflow:hidden;box-shadow:var(--shadow)}
.header-search input{border:0;min-width:0;background:transparent;padding:14px 14px;font:inherit}
.header-search button{border:0;background:var(--paper);padding:0 18px;font-weight:900;color:var(--navy-dark);cursor:pointer}
.search-open,.menu-toggle{border:2px solid rgba(255,255,255,.55);background:rgba(255,255,255,.12);color:#fff;border-radius:12px;padding:12px 14px;font-weight:900;cursor:pointer;white-space:nowrap}
.menu-toggle{display:none}
.nav-ribbon{padding-bottom:12px}
.nav-ribbon-inner{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:12px}
.nav-pill{background:var(--paper);color:var(--text);text-decoration:none;border:2px solid var(--border);border-radius:18px 18px 0 0;padding:14px 10px 12px;display:grid;gap:4px;justify-items:center;text-align:center;font-family:"Comic Sans MS","Trebuchet MS",cursive;font-size:1.15rem;line-height:1.08;box-shadow:0 6px 12px rgba(9,30,53,.12)}
.nav-icon{font-size:1.4rem;line-height:1}
.mobile-nav{padding:18px;display:grid;gap:14px;background:var(--navy-dark);border-top:1px solid rgba(255,255,255,.14)}
.mobile-nav a{color:#fff;text-decoration:none;font-weight:800}

/* Search drawer */
.search-drawer{position:fixed;inset:0;background:rgba(7,20,32,.78);z-index:200;display:grid;place-items:center;padding:20px}
.search-panel{position:relative;background:var(--paper-2);width:min(960px,100%);border-radius:24px;padding:28px;display:grid;grid-template-columns:180px 1fr;gap:28px;box-shadow:var(--shadow);border:2px solid rgba(13,35,61,.12)}
.search-panel img{border-radius:18px;object-fit:contain;object-position:top;background:linear-gradient(180deg,rgba(255,255,255,.75),rgba(255,255,255,.2))}
.search-panel h2{margin:.15em 0 .4em;font-size:clamp(1.8rem,3vw,2.6rem);line-height:1.04;font-family:"Comic Sans MS","Trebuchet MS",cursive}
.search-panel form{display:flex;gap:12px}
.search-panel input{flex:1}
.search-panel button.primary{background:var(--paper);color:var(--navy-dark);border:2px solid var(--border);border-radius:10px;padding:12px 18px;font-weight:900}
.search-close{position:absolute;right:14px;top:10px;border:0;background:none;font-size:34px;cursor:pointer}

/* Shared content */
main{display:block}
.home-main{padding-bottom:28px}
.home-shell{background:var(--paper);border:2px solid var(--border);border-radius:28px;padding:24px 24px 18px;box-shadow:var(--shadow)}
.home-shell-head{padding:10px 10px 20px}
.home-shell-head h1{font-family:"Comic Sans MS","Trebuchet MS",cursive;font-size:clamp(2rem,4vw,3.3rem);line-height:1.12;text-align:center;margin:.2em auto .35em;max-width:1100px}
.home-intro{max-width:980px;margin:0 auto;text-align:center;font-size:1.08rem;color:#3b434c}
.ink-blue{color:#195792}.ink-green{color:#4f8a45}.ink-orange{color:#c96a1b}
.home-grid-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:26px;align-items:start}
.category-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.category-card-large{display:grid;grid-template-rows:auto 1fr;background:var(--card);border:1px solid var(--card-border);border-radius:14px;overflow:hidden;text-decoration:none;color:inherit;box-shadow:0 4px 12px rgba(9,30,53,.08)}
.category-card-large img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block;border-bottom:1px solid var(--card-border)}
.category-copy{padding:16px 18px}
.category-copy h2{margin:0 0 8px;font-family:"Comic Sans MS","Trebuchet MS",cursive;font-size:2rem;line-height:1.02}
.category-copy p{margin:0 0 10px;font-size:1.02rem;color:#2d333a}
.meta-row{display:flex;flex-wrap:wrap;gap:8px 16px;font-size:.93rem;font-weight:800;color:#4a5058}
.cat-construction{color:#1f5b98}.cat-measurement{color:#6f3f00}.cat-geometry{color:#5b1f92}.cat-woodworking{color:#7a4600}.cat-mechanical{color:#224f7d}.cat-electrical{color:#405a11}.cat-materials{color:#1f4d8c}.cat-finishing{color:#9a4f00}
.home-sidebar{display:grid;gap:18px}
.side-card{background:var(--card);border:2px solid #34506c;border-radius:18px;padding:20px;box-shadow:0 5px 12px rgba(9,30,53,.08)}
.side-card h2{font-family:"Comic Sans MS","Trebuchet MS",cursive;font-size:2rem;line-height:1.05;margin:0 0 16px;text-align:center;color:var(--navy-dark)}
.popular-list{margin:0 0 16px;padding-left:26px}
.popular-list li{margin:8px 0;font-size:1rem}
.popular-list a{text-decoration:none;color:var(--text)}
.sidebar-button{display:block;text-align:center;text-decoration:none;background:#135a9a;color:#fff;border-radius:10px;padding:12px 14px;font-family:"Comic Sans MS","Trebuchet MS",cursive;font-size:1.4rem;border:2px solid #0c3860}
.sidebar-button.alt{background:#dd9129;border-color:#8d520c;color:#fff7eb}
.featured-guide-inner{display:grid;grid-template-columns:110px 1fr;gap:14px;align-items:start}
.featured-guide-inner img{width:110px;max-width:100%;height:auto;background:#fff7e7;border:1px solid #d5cab6;border-radius:12px;padding:6px}
.featured-guide-inner h3{margin:0 0 6px;font-family:"Comic Sans MS","Trebuchet MS",cursive;font-size:1.55rem;line-height:1.08}
.featured-guide-inner p{margin:0;font-size:.97rem;color:#334}
.trust-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:18px;padding-top:18px;border-top:2px dashed #c9bca9}
.trust-strip article{display:flex;flex-direction:column;gap:6px;align-items:flex-start;padding:12px 8px}
.trust-strip h2{font-family:"Comic Sans MS","Trebuchet MS",cursive;font-size:1.55rem;line-height:1.1;margin:0;color:var(--navy-dark)}
.trust-strip p{margin:0;font-size:1rem;color:#374047}

.breadcrumbs{padding-top:20px;font-size:.95rem;color:var(--muted)}
.breadcrumbs a{color:var(--muted)}
.page-title{padding:22px 0 18px}
.page-title h1{font-family:"Comic Sans MS","Trebuchet MS",cursive;font-size:clamp(2.2rem,4.5vw,4rem);line-height:1.04;margin:.18em 0}.page-title p{max-width:880px;font-size:1.08rem}
.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-weight:900;color:var(--orange);font-size:.82rem}
section.page-section{padding:30px 0 44px}
.content-grid{display:grid;grid-template-columns:minmax(0,780px) 300px;gap:34px}
.card{background:var(--card);border:1px solid #d8cfbf;border-radius:var(--radius);padding:22px;box-shadow:0 5px 12px rgba(13,41,68,.05)}
.card h2,.card h3{font-family:"Comic Sans MS","Trebuchet MS",cursive;line-height:1.08}
.section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:20px}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.category-card{border-top:6px solid var(--orange)}
.tool-list{display:grid;gap:14px}
.tool-row{background:var(--card);border:1px solid #ddd2c2;border-radius:12px;padding:18px;display:flex;justify-content:space-between;gap:18px;align-items:center;text-decoration:none;color:inherit}
.tool-row h2{margin:.15em 0 .1em;font-size:1.55rem}
.tag{display:inline-block;background:#f6ead1;border-radius:999px;padding:4px 10px;font-size:.78rem;font-weight:800}
.tool-row strong{white-space:nowrap;color:var(--navy-dark)}
.notice{display:grid;grid-template-columns:150px 1fr;gap:18px;align-items:center;background:#fff6d8;border:1px solid #dfbd58;border-radius:16px;padding:18px;margin:28px 0}.notice img{width:150px;height:190px;object-fit:contain;object-position:top;border-radius:12px;background:rgba(255,255,255,.3)}
.prose h2{font-family:"Comic Sans MS","Trebuchet MS",cursive;margin-top:2em;line-height:1.1}
.sidebar .card{position:sticky;top:98px}.sidebar .card>img{display:block;width:100%;max-height:360px;object-fit:contain;object-position:center top;margin:0 auto 18px;border-radius:14px}
.goldie-inline{float:right;width:220px;margin:0 0 22px 28px;border-radius:20px}
.section-illustration{width:100%;max-height:460px;object-fit:cover;border-radius:20px;box-shadow:var(--shadow);margin:18px 0 28px}
.scene-card{padding:0;overflow:hidden;text-decoration:none;color:inherit}.scene-card img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover;border-bottom:1px solid #d9d2c7}.scene-card .scene-copy{padding:20px}
.guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.tool-kit{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:24px 0}.tool-kit>div{background:#fff;border:1px solid #d9d2c7;border-radius:14px;padding:18px}.tool-kit h3{margin-top:0;color:var(--navy-dark);font-family:"Comic Sans MS","Trebuchet MS",cursive}.compact-tool-kit{grid-template-columns:1fr}
.legal-nav{background:#fff;border-radius:14px;padding:18px}
.not-found{min-height:70vh;background:#f0e5d0;display:grid;align-items:center}.not-found-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}.not-found img{max-height:70vh;object-fit:contain}.not-found h1{font-family:"Comic Sans MS","Trebuchet MS",cursive;font-size:clamp(4rem,12vw,9rem);margin:0;line-height:.8;color:var(--navy)}

input,select,textarea{width:100%;border:2px solid #b7bec4;border-radius:10px;background:#fff;padding:12px;font:inherit;color:inherit}
input:focus,select:focus,textarea:focus,button:focus,a:focus{outline:3px solid var(--gold);outline-offset:3px}
.btn,button.primary{display:inline-block;background:var(--orange);color:#fff;border:0;border-radius:10px;padding:12px 18px;font-weight:900;text-decoration:none;cursor:pointer}
.btn.secondary,button.secondary{background:#edf4f8;color:#123551;border:2px solid #90abc0}
button.secondary:hover{background:#f7e9bf;color:#08243b;border-color:#b98b2b}
.ask-box{display:flex;gap:10px;background:#fff;padding:12px;border-radius:16px;box-shadow:var(--shadow)}
.calc-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.field label{font-weight:800;display:block;margin-bottom:6px}.field small{display:block;color:var(--muted);margin-top:5px}.calc-actions{display:flex;gap:10px;margin-top:20px}.calculator-shell{background:#fff;border:1px solid #d5cdc0;border-radius:20px;padding:24px;box-shadow:var(--shadow);margin:22px 0}.result-panel{margin-top:22px;background:#edf6fb;border:2px solid #2b739f;border-radius:14px;padding:20px}.result-panel[hidden]{display:none}.result-primary{font-size:1.7rem;font-weight:900;color:var(--navy-dark);font-variant-numeric:tabular-nums}.error-box{background:#fbe9e7;border-left:6px solid #982e2e;padding:14px;border-radius:8px;margin-top:16px}
.print-compact{font-size:.95rem}.data-table{width:100%;border-collapse:collapse;margin-top:14px;background:#fff}.data-table th,.data-table td{border:1px solid #d5cdc0;padding:8px 10px;text-align:left;vertical-align:top}.data-table th{background:#f7ecd0}.reference-table-wrap{overflow-x:auto}

/* Footer */
.ad-slot{min-height:90px;margin-top:34px;margin-bottom:24px;border:1px dashed rgba(17,46,74,.35);border-radius:16px;background:rgba(255,255,255,.35);display:grid;place-items:center;color:#64717b;font-size:.78rem;letter-spacing:.04em;text-align:center;padding:14px}.ad-slot-home{min-height:104px}.ad-slot-footer{min-height:90px}.ad-slot span{opacity:.85}
.site-footer{background:var(--navy-dark);color:#fff;padding:26px 0 22px;margin-top:40px}.footer-motto{font-family:"Comic Sans MS","Trebuchet MS",cursive;text-align:center;font-size:clamp(1.9rem,3.4vw,2.8rem);line-height:1.18;color:#fff}.footer-motto span{color:#ebf4ff}.footer-motto strong{color:var(--gold)}
.footer-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:14px;margin:18px auto 28px}.footer-action{text-decoration:none;color:#fff;background:#123d68;border:2px solid #4f83b0;border-radius:12px;padding:12px 20px;font-family:"Comic Sans MS","Trebuchet MS",cursive;font-size:1.35rem;box-shadow:0 4px 10px rgba(0,0,0,.15)}
.footer-grid{display:grid;grid-template-columns:1.7fr repeat(3,1fr);gap:28px}.footer-grid .brand{align-items:flex-start}.footer-copy{color:#d9e6f1}.site-footer a{color:#fff;display:block;margin:8px 0;text-decoration:none}.site-footer h2{font-size:1rem;color:var(--gold);letter-spacing:.08em;text-transform:uppercase}.copyright{border-top:1px solid rgba(255,255,255,.18);padding-top:18px;margin-top:28px;color:#d6e0e8}

@media(max-width:1100px){
  .header-top-inner{grid-template-columns:minmax(250px,1fr) 1fr;gap:16px}
  .guide-banner{grid-column:1/-1;order:3;justify-content:flex-start}
  .header-tools{justify-self:stretch}
  .home-grid-layout{grid-template-columns:1fr}
  .home-sidebar{grid-template-columns:1fr 1fr}
}
@media(max-width:900px){
  .nav-ribbon-inner{grid-template-columns:repeat(3,minmax(0,1fr))}
  .grid,.guide-grid{grid-template-columns:1fr 1fr}
  .content-grid,.not-found-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .sidebar .card{position:static}
  .calc-grid{grid-template-columns:1fr}
}
@media(max-width:700px){
  body{background:linear-gradient(180deg,#123a63 0 280px,var(--cream) 280px 100%)}
  .header-top-inner{grid-template-columns:1fr;gap:14px}
  .header-tools{justify-self:stretch}
  .header-search{width:100%}
  .search-open{display:none}
  .menu-toggle{display:inline-block}
  .nav-ribbon-inner{grid-template-columns:repeat(2,minmax(0,1fr))}
  .category-grid,.grid,.guide-grid,.footer-grid,.home-sidebar{grid-template-columns:1fr}
  .trust-strip{grid-template-columns:1fr 1fr}
  .search-panel{grid-template-columns:110px 1fr}
  .notice{grid-template-columns:120px 1fr}
  .tool-kit{grid-template-columns:1fr}
  .desktop-only{display:none!important}
}
@media(max-width:560px){
  .wrap{width:min(100% - 20px,1380px)}
  .brand-title{font-size:1.55rem}
  .brand-tagline{font-size:.94rem}
  .brand-mark{width:58px;height:58px}
  .speech-bubble{max-width:none;font-size:1rem;padding:14px}
  .guide-banner{align-items:center}
  .guide-portrait{max-height:120px}
  .nav-pill{font-size:1rem;padding:12px 8px}
  .home-shell{padding:18px 14px}
  .home-shell-head h1{font-size:1.65rem}
  .category-copy h2,.side-card h2{font-size:1.55rem}
  .featured-guide-inner{grid-template-columns:1fr}
  .featured-guide-inner img{width:140px}
  .trust-strip{grid-template-columns:1fr}
  .notice{grid-template-columns:1fr}.notice img{width:min(220px,100%);height:auto;margin:auto}
  .search-panel{grid-template-columns:1fr;padding-top:46px}.search-panel img{display:none}.search-panel form,.ask-box{display:grid}
  .goldie-inline{float:none;width:180px;margin:0 auto 20px;display:block}
  .tool-row{align-items:flex-start;flex-direction:column}.tool-row strong{white-space:normal}
}

body.page-inner .guide-banner{display:none}
body.page-inner .header-top-inner{grid-template-columns:minmax(260px,340px) 1fr}
body.page-inner .header-tools{justify-self:end}
@media(max-width:700px){body.page-inner .header-top-inner{grid-template-columns:1fr}}