/* ============================================================
   SKM Design Hub — shared stylesheet (drafting / construction-doc theme)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  --bg:#141414;
  --bg-alt:#1B1B1B;
  --surface:#1B1B1B;
  --line:#333333;
  --text:#EDEDED;
  --text-soft:#9A9A9A;
  --text-dim:#6B6B6B;
  --accent:#E2884B;
  --accent-deep:#C4551C;
  --max:1240px;
  color-scheme: dark;
}
html[data-theme="light"]{
  --bg:#F5F3EE;
  --bg-alt:#FFFFFF;
  --surface:#FFFFFF;
  --line:#DCD8CE;
  --text:#171717;
  --text-soft:#5B5B54;
  --text-dim:#8A8A80;
  --accent:#C4551C;
  --accent-deep:#9E4315;
  color-scheme: light;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth; background:var(--bg) !important;}
html, body{
  margin:0;
  background:var(--bg) !important;
  color:var(--text) !important;
  font-family:'Space Grotesk', sans-serif !important;
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  transition:background .25s ease, color .25s ease;
}
img,svg{display:block;max-width:100%;}
a{color:inherit !important; text-decoration:none !important;}
.wrap{max-width:var(--max); margin:0 auto; padding:0 28px;}
.mono{font-family:'IBM Plex Mono', monospace;}
h1,h2,h3{font-family:'Space Grotesk', sans-serif; font-weight:600; margin:0; color:var(--text); letter-spacing:-.01em;}
p{margin:0;}
section{padding:96px 0;}
@media (max-width:720px){ section{padding:56px 0;} .wrap{padding:0 20px;} }

/* ---------------- Corner coordinate readouts ---------------- */
.corner{
  position:fixed; z-index:70; font-family:'IBM Plex Mono',monospace; font-size:11px;
  color:var(--text-dim); pointer-events:none; letter-spacing:.02em;
}
.corner-tl{top:68px; left:20px;}
.corner-tr{top:68px; right:20px; text-align:right;}
@media (max-width:720px){ .corner{display:none;} }

/* ---------------- Sheet header (section label component) ---------------- */
.sheet-head{
  display:flex; align-items:baseline; justify-content:space-between; gap:16px; flex-wrap:wrap;
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  padding:10px 0; margin-bottom:44px;
  font-family:'IBM Plex Mono',monospace; font-size:11.5px; color:var(--text-soft);
  letter-spacing:.04em; text-transform:uppercase;
}
.sheet-head .sh-code{color:var(--accent);}
.sheet-head .sh-title{color:var(--text); font-size:12px;}

.section-head h2{font-size:clamp(26px,3.4vw,40px); line-height:1.15;}
.section-head p{margin-top:16px; color:var(--text-soft); font-size:16.5px; max-width:60ch;}

.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:14px 24px; font-size:14px; font-weight:500; border-radius:0;
  border:1px solid var(--text); cursor:pointer; font-family:'Space Grotesk', sans-serif;
  text-transform:uppercase; letter-spacing:.04em;
}
.btn-primary{background:var(--text) !important; color:var(--bg) !important; border-color:var(--text) !important;}
.btn-primary:hover{background:var(--accent) !important; border-color:var(--accent) !important; color:#111 !important;}
.btn-outline{background:transparent !important; color:var(--text) !important; border-color:var(--line) !important;}
.btn-outline:hover{border-color:var(--accent) !important; color:var(--accent) !important;}

/* ---------------- Header / Nav ---------------- */
header.site{
  position:sticky; top:0; z-index:80;
  background:color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex; align-items:center; justify-content:space-between; padding:16px 28px; max-width:var(--max); margin:0 auto;}
.brand{display:flex; align-items:center; gap:10px;}
.brand img{width:32px; height:32px;}
.brand-text{font-family:'Space Grotesk', sans-serif; font-size:15px; font-weight:600; color:var(--text); line-height:1.1; text-transform:uppercase; letter-spacing:.02em;}
.brand-text span{display:block; font-family:'IBM Plex Mono', monospace; font-size:9px; font-weight:400; color:var(--text-dim); letter-spacing:.08em; text-transform:none; margin-top:2px;}
.nav-links{display:flex; gap:30px; list-style:none; margin:0; padding:0; align-items:center;}
.nav-links a{font-family:'IBM Plex Mono',monospace; font-size:12px; text-transform:uppercase; letter-spacing:.05em; color:var(--text-soft) !important; transition:color .15s; position:relative; padding:4px 0;}
.nav-links a:hover, .nav-links a.active{color:var(--accent) !important;}
.nav-links a.active::after{content:'';position:absolute;left:0;bottom:-3px;width:100%;height:1px;background:var(--accent);}
.nav-right{display:flex; align-items:center; gap:16px;}

.theme-toggle{
  width:36px; height:36px; border-radius:50%;
  border:1px solid var(--line); background:transparent;
  cursor:pointer; display:flex; align-items:center; justify-content:center;
  color:var(--text); flex:none; transition:border-color .2s;
}
.theme-toggle:hover{border-color:var(--accent); color:var(--accent);}
.theme-toggle svg{width:17px; height:17px;}
.theme-toggle .sun{display:none;}
html[data-theme="light"] .theme-toggle .moon{display:none;}
html[data-theme="light"] .theme-toggle .sun{display:block;}

.nav-toggle{
  display:none; width:36px; height:36px; border-radius:0; border:1px solid var(--line);
  background:transparent; cursor:pointer; flex:none; align-items:center; justify-content:center;
}
.nav-toggle svg{width:19px;height:19px;color:var(--text);}

@media (max-width:920px){
  .nav-links{
    position:fixed; inset:64px 0 0 0; background:var(--bg);
    flex-direction:column; align-items:flex-start; padding:32px 24px; gap:22px;
    transform:translateX(100%); transition:transform .3s ease; overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-links a{font-size:16px;}
  .nav-toggle{display:flex;}
}

/* ---------------- Marquee ticker ---------------- */
.ticker{
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  overflow:hidden; white-space:nowrap; padding:14px 0; background:var(--bg-alt);
}
.ticker-track{display:inline-block; animation:ticker 28s linear infinite;}
.ticker-track span{
  font-family:'IBM Plex Mono',monospace; font-size:12.5px; text-transform:uppercase; letter-spacing:.05em;
  color:var(--text-soft); padding:0 24px; border-right:1px solid var(--line);
}
.ticker-track span em{color:var(--accent); font-style:normal;}
@keyframes ticker{ from{transform:translateX(0);} to{transform:translateX(-50%);} }
@media (prefers-reduced-motion: reduce){ .ticker-track{animation:none;} }

/* ---------------- Numbered list rows (services / values) ---------------- */
.num-list{border-top:1px solid var(--line);}
.num-row{
  display:grid; grid-template-columns:60px 1fr auto; gap:20px; align-items:center;
  padding:24px 0; border-bottom:1px solid var(--line);
}
.num-row .n{font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--accent) !important;}
.num-row .t{font-size:clamp(18px,2vw,22px); font-weight:600; color:var(--text) !important;}
.num-row .tag{font-family:'IBM Plex Mono',monospace; font-size:10.5px; color:var(--text-dim) !important; text-transform:uppercase; letter-spacing:.04em; display:block; margin-top:4px;}
.num-row .arrow{color:var(--text-soft) !important; font-family:'IBM Plex Mono',monospace; font-size:16px; transition:transform .2s, color .2s;}
.num-row:hover .arrow{transform:translateX(4px); color:var(--accent) !important;}
.num-row:hover .t{color:var(--accent) !important;}

/* ---------------- Plan cards (Builders / Societies) ---------------- */
.plan-grid{display:grid; grid-template-columns:1fr 1fr; gap:1px; background:var(--line); border:1px solid var(--line);}
.plan-card{background:var(--bg); padding:36px 30px;}
.plan-card .p-code{font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--accent); text-transform:uppercase; letter-spacing:.05em;}
.plan-card h3{font-size:24px; margin-top:12px;}
.plan-card p{color:var(--text-soft); font-size:15px; margin-top:12px;}
@media (max-width:720px){ .plan-grid{grid-template-columns:1fr;} }

/* ---------------- Notes / manifesto ---------------- */
.notes-list{border-top:1px solid var(--line);}
.note-row{display:flex; gap:20px; padding:20px 0; border-bottom:1px solid var(--line); align-items:flex-start;}
.note-row .n{font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--accent); flex:none; width:24px;}
.note-row p{color:var(--text-soft); font-size:15.5px;}
.quote-block{font-family:'Space Grotesk',sans-serif; font-size:clamp(20px,2.6vw,28px); font-weight:500; color:var(--text); line-height:1.4; margin-bottom:36px; font-style:italic;}

/* ---------------- Portfolio filters + grid ---------------- */
.filters{display:flex; flex-wrap:wrap; gap:10px; margin-bottom:36px;}
.filter-btn{
  font-family:'IBM Plex Mono',monospace; font-size:11.5px; letter-spacing:.04em; text-transform:uppercase;
  padding:9px 16px; border:1px solid var(--line); background:transparent; color:var(--text-soft);
  border-radius:0; cursor:pointer; transition:all .18s;
}
.filter-btn:hover{border-color:var(--accent); color:var(--accent);}
.filter-btn.active{background:var(--text); color:var(--bg); border-color:var(--text);}
html[data-theme="light"] .filter-btn.active{background:var(--accent); border-color:var(--accent); color:#fff;}

.p-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:16px;}
.p-card{
  position:relative; overflow:hidden; aspect-ratio:4/3;
  background:var(--surface); border:1px solid var(--line);
  opacity:0; transform:scale(.97); transition:opacity .35s ease, transform .35s ease;
  pointer-events:none; width:0; height:0;
}
.p-card.show{opacity:1; transform:scale(1); pointer-events:auto; position:relative; width:auto; height:auto;}
.p-card img{width:100%; height:100%; object-fit:cover; display:block; transition:transform .5s ease, filter .5s ease; filter:grayscale(.35);}
.p-card:hover img{transform:scale(1.06); filter:grayscale(0);}
.p-tag{
  position:absolute; left:0; bottom:0; right:0; background:rgba(10,10,10,.82); color:#fff;
  font-family:'IBM Plex Mono',monospace; font-size:10.5px; padding:8px 12px; letter-spacing:.04em; text-transform:uppercase;
}
@media (max-width:880px){ .p-grid{grid-template-columns:1fr 1fr; gap:10px;} }
@media (max-width:520px){ .p-grid{grid-template-columns:1fr;} }

/* ---------------- Services interactive shell ---------------- */
.svc-shell{background:var(--bg-alt); border:1px solid var(--line); display:grid; grid-template-columns:1fr 1.1fr;}
.svc-image{position:relative; min-height:520px; overflow:hidden;}
.svc-image img{position:absolute; inset:0; width:100%; height:100%; object-fit:cover; opacity:0; transition:opacity .5s ease; filter:grayscale(.25);}
.svc-image img.active{opacity:1;}
.svc-image::after{content:'';position:absolute; inset:0; background:linear-gradient(to top, rgba(0,0,0,.8), rgba(0,0,0,0) 55%); z-index:1;}
.svc-caption{position:absolute; left:24px; bottom:24px; right:24px; color:#fff; z-index:2;}
.svc-caption .idx{font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--accent);}
.svc-caption h3{color:#fff; font-size:24px; margin-top:6px;}
.svc-caption p{color:#c9c9c9; font-size:14px; margin-top:8px; max-width:38ch;}
.svc-caption .tags{font-family:'IBM Plex Mono',monospace; font-size:10.5px; color:#8f8f8f; margin-top:8px; letter-spacing:.04em; text-transform:uppercase;}
.svc-list{padding:6px 0;}
.svc-item{display:flex; align-items:center; justify-content:space-between; gap:16px; padding:24px 26px; border-bottom:1px solid var(--line); cursor:pointer; transition:background .2s;}
.svc-item:hover, .svc-item.active{background:rgba(255,255,255,.04);}
html[data-theme="light"] .svc-item:hover, html[data-theme="light"] .svc-item.active{background:rgba(0,0,0,.03);}
.svc-left{display:flex; align-items:baseline; gap:16px;}
.svc-num{font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--accent); width:20px; flex:none;}
.svc-name{color:var(--text); font-family:'Space Grotesk',sans-serif; font-size:clamp(17px,2vw,21px); font-weight:600;}
.svc-tag{font-family:'IBM Plex Mono',monospace; font-size:10px; color:var(--text-dim); display:block; margin-top:4px; text-transform:uppercase; letter-spacing:.04em;}
.svc-arrow{width:32px; height:32px; border-radius:50%; border:1px solid var(--line); display:flex; align-items:center; justify-content:center; flex:none; color:var(--text-soft); transition:background .2s, border-color .2s, color .2s;}
.svc-item.active .svc-arrow{background:var(--accent); border-color:var(--accent); color:#111;}
@media (max-width:900px){ .svc-shell{grid-template-columns:1fr;} .svc-image{min-height:280px;} }

/* ---------------- Contact meta grid ---------------- */
.meta-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line); border:1px solid var(--line); margin-bottom:48px;}
.meta-cell{background:var(--bg); padding:18px 20px;}
.meta-cell .k{font-family:'IBM Plex Mono',monospace; font-size:10px; color:var(--text-dim); text-transform:uppercase; letter-spacing:.06em;}
.meta-cell .v{font-family:'IBM Plex Mono',monospace; font-size:13px; color:var(--text); margin-top:6px;}
@media (max-width:720px){ .meta-grid{grid-template-columns:1fr 1fr;} }

.contact-grid{display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:start;}
.contact-item{display:flex; gap:16px; align-items:flex-start; margin-bottom:22px;}
.contact-item .ic{width:20px; height:20px; flex:none; margin-top:3px; color:var(--accent);}
.contact-item strong{display:block; font-family:'IBM Plex Mono',monospace; font-size:10.5px; text-transform:uppercase; letter-spacing:.05em; color:var(--text-dim); margin-bottom:4px;}
.contact-item a, .contact-item span{color:var(--text) !important; font-size:15px;}
.contact-item a:hover{color:var(--accent) !important;}
.cform{background:var(--bg-alt); border:1px solid var(--line); padding:32px;}
.cform label{display:block; font-family:'IBM Plex Mono',monospace; font-size:10.5px; text-transform:uppercase; letter-spacing:.05em; color:var(--text-dim); margin-bottom:6px; margin-top:18px;}
.cform label:first-child{margin-top:0;}
.cform input, .cform select, .cform textarea{
  width:100%; border:1px solid var(--line); background:var(--bg); padding:11px 12px;
  font-family:'Space Grotesk', sans-serif; font-size:14.5px; color:var(--text); border-radius:0;
}
.cform textarea{resize:vertical; min-height:90px;}
.cform button{margin-top:24px; width:100%; background:var(--accent); color:#141414; border:none; padding:14px; font-size:14px; font-weight:600; text-transform:uppercase; letter-spacing:.04em; cursor:pointer; font-family:'Space Grotesk', sans-serif;}
.cform button:hover{background:var(--accent-deep); color:#fff;}
.map-embed{width:100%; height:240px; border:1px solid var(--line); margin-top:8px; filter:grayscale(.6) contrast(1.05);}
@media (max-width:820px){ .contact-grid{grid-template-columns:1fr;} }

/* ---------------- Page hero (inner pages) ---------------- */
.page-hero{padding:56px 0 40px;}
.page-hero h1{font-size:clamp(32px,4.4vw,50px); line-height:1.08;}
.page-hero p{margin-top:18px; color:var(--text-soft); font-size:17px; max-width:58ch;}
.crumbs{font-family:'IBM Plex Mono', monospace; font-size:11px; color:var(--text-dim); margin-bottom:18px; text-transform:uppercase; letter-spacing:.05em;}
.crumbs a{color:var(--text-soft) !important;}
.crumbs a:hover{color:var(--accent) !important;}

/* ---------------- Footer ---------------- */
footer.site{background:var(--bg-alt); border-top:1px solid var(--line); color:var(--text-soft); padding:0 0 24px;}
.foot-meta{display:grid; grid-template-columns:repeat(6,1fr); gap:1px; background:var(--line); border-bottom:1px solid var(--line);}
.foot-meta .fm-cell{background:var(--bg-alt); padding:16px 18px;}
.foot-meta .fm-cell .k{font-family:'IBM Plex Mono',monospace; font-size:9.5px; color:var(--text-dim); text-transform:uppercase; letter-spacing:.06em;}
.foot-meta .fm-cell .v{font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--text); margin-top:6px;}
@media (max-width:900px){ .foot-meta{grid-template-columns:repeat(3,1fr);} }
@media (max-width:560px){ .foot-meta{grid-template-columns:repeat(2,1fr);} }
.foot-row{display:flex; justify-content:space-between; flex-wrap:wrap; gap:20px; align-items:center; padding:32px 0 26px;}
.foot-brand{font-family:'Space Grotesk', sans-serif; color:var(--text); font-size:16px; font-weight:600; text-transform:uppercase; letter-spacing:.03em;}
.foot-links{display:flex; gap:22px; list-style:none; padding:0; margin:0; flex-wrap:wrap;}
.foot-links a{font-family:'IBM Plex Mono',monospace; font-size:11px; text-transform:uppercase; letter-spacing:.04em; color:var(--text-soft) !important;}
.foot-links a:hover{color:var(--accent) !important;}
.foot-bottom{padding-top:16px; border-top:1px solid var(--line); display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; font-size:11px; font-family:'IBM Plex Mono', monospace; color:var(--text-dim);}

.wa-float{
  position:fixed; right:20px; bottom:20px; z-index:90;
  background:#25D366; width:52px; height:52px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 6px 18px rgba(0,0,0,.4);
}

/* ---------------- Reveal-on-scroll animation ---------------- */
.reveal{opacity:0; transform:translateY(16px); transition:opacity .6s ease, transform .6s ease;}
.reveal.in{opacity:1; transform:translateY(0);}
@media (prefers-reduced-motion: reduce){ .reveal{opacity:1 !important; transform:none !important; transition:none !important;} }

.grid-tex{
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size:44px 44px; background-position:-1px -1px;
}
html[data-theme="light"] .grid-tex{ background-image:
    linear-gradient(rgba(0,0,0,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,.05) 1px, transparent 1px); }