/* ===== Tokens: light theme (default) and dark theme ===== */
:root{
  --navy:#0A2540; --blue:#1565C0; --sky:#E3F2FD;
  --bg:#ffffff; --bg-alt:#F3F6F9; --card:#fff; --text:#1c2b3a; --muted:#4a5d70;
  --line:#d9e2ec; --shadow:0 6px 24px rgba(10,37,64,.08); --head:var(--navy); --link:var(--blue);
  --grid:rgba(21,101,192,.16); --panel:#E3F2FD;
  --r:16px; --fh:"Plus Jakarta Sans",system-ui,sans-serif; --fb:"Source Sans 3",system-ui,sans-serif;
}
/* Dark: follows the OS unless the user picked a theme with the toggle */
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){
  --bg:#071522; --bg-alt:#0c1f33; --card:#0f2a44; --text:#dbe7f3; --muted:#a3b7cb; --line:#1d3b5a;
  --shadow:0 6px 24px rgba(0,0,0,.35); --head:#fff; --link:#7db8f5; --grid:rgba(125,184,245,.14); --panel:#12314f;}}
:root[data-theme=dark]{
  --bg:#071522; --bg-alt:#0c1f33; --card:#0f2a44; --text:#dbe7f3; --muted:#a3b7cb; --line:#1d3b5a;
  --shadow:0 6px 24px rgba(0,0,0,.35); --head:#fff; --link:#7db8f5; --grid:rgba(125,184,245,.14); --panel:#12314f;}

/* ===== Base ===== */
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;font:400 1.0625rem/1.65 var(--fb);color:var(--text);background:var(--bg)}
h1,h2,h3{font-family:var(--fh);color:var(--head);line-height:1.15;margin:0 0 .5em}
h1{font-size:clamp(2.2rem,5.5vw,3.8rem);font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(1.7rem,3.5vw,2.4rem);font-weight:800}
h3{font-size:1.2rem;font-weight:700}
a{color:var(--link)} img{max-width:100%;height:auto;display:block}
.wrap{width:min(1160px,92%);margin-inline:auto}
.section{padding:clamp(3rem,7vw,5.5rem) 0}.alt{background:var(--bg-alt)}
.sub{color:var(--muted);max-width:60ch;margin:0 0 2rem}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;padding:.5rem 1rem;z-index:99}
:focus-visible{outline:3px solid #f5a623;outline-offset:2px}

/* ===== Buttons ===== */
.btn{display:inline-block;font:700 .95rem var(--fh);padding:.8rem 1.4rem;border-radius:999px;text-decoration:none;border:2px solid transparent;cursor:pointer;transition:transform .15s,background .15s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--blue);color:#fff}.btn-primary:hover{background:#0d4f9a}
.btn-ghost{border-color:var(--blue);color:var(--link);background:transparent}
.btn-sm{padding:.5rem 1rem;font-size:.85rem}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:50;background:var(--bg);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:68px}
.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none;color:var(--head);font:800 1.15rem/1.1 var(--fh)}
.brand small{display:block;font:600 .72rem var(--fb);color:var(--muted);margin-top:2px}
nav{display:flex;align-items:center;gap:1.4rem}
nav a:not(.btn){color:var(--text);text-decoration:none;font-weight:600}nav a:not(.btn):hover{color:var(--link)}
.theme-btn{background:none;border:1px solid var(--line);color:var(--text);border-radius:50%;width:38px;height:38px;font-size:1.1rem;cursor:pointer}
.menu-btn{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer}
.menu-btn span,.menu-btn span::before,.menu-btn span::after{display:block;width:24px;height:2.5px;background:var(--head);position:relative;margin:auto;content:""}
.menu-btn span::before{position:absolute;top:-7px}.menu-btn span::after{position:absolute;top:7px}
@media(max-width:820px){
  .menu-btn{display:block}
  nav{position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:0;background:var(--bg);border-bottom:1px solid var(--line);padding:.5rem 4%;display:none}
  nav.open{display:flex}nav a,nav .theme-btn{padding:.8rem 0}nav .btn{text-align:center;margin:.5rem 0}
  .theme-btn{border-radius:8px;width:auto;text-align:left}
}

/* ===== Hero ===== */
.hero{background:linear-gradient(180deg,var(--sky),var(--bg));padding:clamp(2.5rem,6vw,5rem) 0}
:root[data-theme=dark] .hero,:root:not([data-theme=light]) .hero{--x:0}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]) .hero{background:linear-gradient(180deg,#0c2540,var(--bg))}}
:root[data-theme=dark] .hero{background:linear-gradient(180deg,#0c2540,var(--bg))}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:3rem;align-items:center}
.hero img{border-radius:24px;box-shadow:var(--shadow)}
.lead{font-size:1.2rem;color:var(--muted);max-width:52ch}
.actions{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.8rem}
@media(max-width:820px){.hero-grid{grid-template-columns:1fr}}

/* ===== Cards ===== */
.cards3{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.5rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:1.2rem}
.cards3 .card img{border-radius:12px;aspect-ratio:4/3;object-fit:cover;width:100%;margin-bottom:1rem}
.cards3 .card a{font-weight:700}

/* ===== Catalogue ===== */
.tools{display:flex;flex-wrap:wrap;gap:1rem;align-items:center;margin-bottom:1rem}
.search input{width:min(340px,100%);padding:.75rem 1.1rem;border:1px solid var(--line);border-radius:999px;background:var(--card);color:var(--text);font:inherit}
.filters{display:flex;flex-wrap:wrap;gap:.5rem}
.chip{border:1px solid var(--line);background:var(--card);color:var(--text);border-radius:999px;padding:.45rem 1rem;font:600 .9rem var(--fb);cursor:pointer}
.chip[aria-pressed=true]{background:var(--blue);border-color:var(--blue);color:#fff}
.count{color:var(--muted);margin:.5rem 0 1.2rem}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1.4rem}
.product{display:flex;flex-direction:column;padding:0;overflow:hidden}
.product .body{padding:1rem 1.2rem 1.2rem;display:flex;flex-direction:column;gap:.5rem;flex:1}
.product h3{margin:0;font-size:1.05rem}.product p{margin:0;color:var(--muted);font-size:.97rem;flex:1}
.row{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:.5rem}
.tag{color:var(--link);font-weight:600;font-size:.85rem;margin:0}
/* Graph-paper panel behind each illustration */
.art{background-color:var(--panel);
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:8px 8px;aspect-ratio:4/3;position:relative;overflow:hidden}
.art img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s}
.product:hover .art img{transform:scale(1.04)}
.art:has(img)::after{display:none}
/* Soft studio light across the panel, like the supplied product photos */
.art::after{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(ellipse at 30% 20%,rgba(255,255,255,.45),transparent 65%)}
.art svg{width:100%;height:100%;display:block;filter:drop-shadow(4px 7px 5px rgba(10,37,64,.3))}
.product .art{transition:background-size .3s}.product:hover .art{background-size:10px 10px}
.empty{grid-column:1/-1;text-align:center;color:var(--muted);padding:2rem}

/* ===== Contact ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:3rem;align-items:start}
address{font-style:normal}address p{margin:0 0 1.2rem}
.form{display:grid;gap:1rem;padding:1.6rem}
.form label{display:grid;gap:.3rem;font-weight:600;font-size:.95rem}
.form input,.form select,.form textarea{font:inherit;padding:.7rem .9rem;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--text);width:100%}
.form input:invalid:not(:placeholder-shown){border-color:#c62828}
.two{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
#formMsg{margin:0;font-weight:600;color:var(--link)}
@media(max-width:820px){.contact-grid{grid-template-columns:1fr}.two{grid-template-columns:1fr}}

/* ===== Footer ===== */
.site-footer{background:var(--navy);color:#cfe0f1;padding:3rem 0 1rem}
.site-footer h3{color:#fff;font-size:1rem}.site-footer a{color:#cfe0f1;display:block;text-decoration:none;margin:.3rem 0;overflow-wrap:anywhere}
.site-footer a:hover{color:#fff;text-decoration:underline}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:2rem}
.copy{text-align:center;font-size:.85rem;margin:2rem 0 0;opacity:.8}
@media(max-width:820px){.foot-grid{grid-template-columns:1fr 1fr}}

/* ===== Modal ===== */
dialog{border:0;border-radius:var(--r);padding:1.4rem;width:min(520px,92vw);background:var(--card);color:var(--text);box-shadow:0 20px 60px rgba(0,0,0,.4)}
dialog::backdrop{background:rgba(10,37,64,.6)}
dialog .art{border-radius:12px;margin-bottom:1rem}
dialog ul{padding-left:1.2rem;color:var(--muted)}
.close{position:absolute;right:.8rem;top:.5rem;background:var(--card);border:0;border-radius:50%;width:36px;height:36px;font-size:1.5rem;cursor:pointer;color:var(--text)}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* ===== Product cards (images are defined in index.html) ===== */
.product-image{background-color:var(--panel);background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:8px 8px;aspect-ratio:4/3;position:relative;overflow:hidden}
.product-image img{width:100%;height:100%;object-fit:contain;display:block}
/* Set by script.js when an image fails to load; shows the original URL so it is easy to fix */
.product-image[data-missing]::after{content:"Image not found: " attr(data-missing);position:absolute;inset:auto 0 0;padding:.5rem;font-size:.75rem;background:rgba(10,37,64,.88);color:#fff;overflow-wrap:anywhere}
.product-image[data-missing] img{opacity:.15}
.tag{display:block}.product-card[hidden]{display:none}
dialog .product-image{border-radius:12px;margin-bottom:1rem}
.intro{color:var(--muted);max-width:52ch}
.err{color:#c62828;font-size:.85rem;font-weight:600;min-height:0}
:root[data-theme=dark] .err{color:#ff8a80}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]) .err{color:#ff8a80}}
.form small,.modal-sel small{font-weight:400;color:var(--muted)}
.form input[readonly]{background:var(--bg-alt)}
.modal-sel{display:grid;gap:.8rem;margin:1rem 0}.modal-sel label{display:grid;gap:.3rem;font-weight:600}
.modal-sel input,.modal-sel select{font:inherit;padding:.6rem .8rem;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--text)}