:root{
  --ink:#0F1214;        /* near-black slate, not warm charcoal */
  --panel:#171B1E;
  --panel-2:#1E2326;
  --rust:#BE6A3A;       /* ochre/rust — ore, not generic gold */
  --rust-l:#DD8B57;
  --core-a:#7A8B7E;     /* core-sample banding accents */
  --core-b:#4A5A52;
  --paper:#EDEAE1;
  --ink-soft:#9CA3A0;
  --line:rgba(237,234,225,0.12);
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:76px;}
body{margin:0;background:var(--ink);color:var(--paper);font-family:'Inter',sans-serif;font-weight:400;line-height:1.65;overflow-x:hidden;}
h1,h2,h3,h4{font-family:'Space Grotesk',sans-serif;font-weight:600;margin:0 0 .4em;letter-spacing:-.01em;color:var(--paper);}
.mono{font-family:'IBM Plex Mono',monospace;}
p{margin:0 0 1em;color:#C7C2B6;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;}

/* core-sample ruler decoration */
.core-rule{position:relative;padding-left:26px;}
.core-rule::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  background:repeating-linear-gradient(180deg,var(--rust) 0 10px,var(--core-a) 10px 20px,var(--core-b) 20px 32px);border-radius:2px;}

/* ---------- NAV ---------- */
header{position:fixed;top:0;left:0;right:0;z-index:500;padding-top:env(safe-area-inset-top,0px);
  background:rgba(15,18,20,.78);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;max-width:1200px;margin:0 auto;}
.brand{display:flex;align-items:center;gap:10px;font-family:'Space Grotesk',sans-serif;font-size:1.1rem;}
.brand img{height:42px;width:auto;border-radius:5px;object-fit:contain;}
.brand b{color:var(--rust-l);}
.navlinks{display:flex;gap:26px;font-size:.88rem;}
.navlinks a{opacity:.8;transition:opacity .2s;}
.navlinks a:hover{opacity:1;color:var(--rust-l);}
.navcta{display:flex;align-items:center;gap:12px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border-radius:2px;
  font-size:.86rem;font-weight:500;cursor:pointer;border:1px solid transparent;transition:all .22s;white-space:nowrap;font-family:'Inter',sans-serif;}
.btn-rust{background:var(--rust);color:#12100C;}
.btn-rust:hover{background:var(--rust-l);}
.btn-line{border-color:var(--line);color:var(--paper);background:transparent;}
.btn-line:hover{border-color:var(--rust);color:var(--rust-l);}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:0;padding:6px;}
.burger span{width:22px;height:2px;background:var(--paper);}

/* ---------- HERO ---------- */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;padding:130px 0 60px;}
.hero-bg{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,11,13,.5),rgba(10,11,13,.88) 72%,var(--ink) 100%),
  url('__HERO__') center 30%/cover no-repeat;}
.hero-inner{position:relative;z-index:2;width:100%;}
.hero-tag{font-family:'IBM Plex Mono',monospace;font-size:.78rem;color:var(--rust-l);letter-spacing:.02em;margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.hero-tag::before{content:"";width:8px;height:8px;background:var(--rust);border-radius:50%;}
.hero h1{font-size:clamp(2.1rem,5.4vw,3.9rem);max-width:15ch;line-height:1.06;}
.hero .lede{max-width:48ch;font-size:1.05rem;color:#DAD5C8;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:26px 0 42px;}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;border-top:1px solid var(--line);padding-top:24px;}
.stat b{display:block;font-family:'Space Grotesk',sans-serif;font-size:1.9rem;color:var(--rust-l);}
.stat span{font-size:.76rem;color:var(--ink-soft);}

/* ---------- SECTION ---------- */
section{padding:92px 0;}
.eyebrow{font-family:'IBM Plex Mono',monospace;color:var(--rust-l);font-size:.76rem;margin-bottom:10px;}
.sec-head{max-width:640px;margin-bottom:48px;}
.sec-head h2{font-size:clamp(1.6rem,3.2vw,2.3rem);}
.section-alt{background:var(--panel);}

/* ---------- ABOUT ---------- */
.about-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:start;}
.about-grid img{border-radius:3px;}
.about-list{list-style:none;padding:0;margin:20px 0 0;display:grid;gap:11px;}
.about-list li{display:flex;gap:10px;font-size:.92rem;color:#C7C2B6;}
.about-list li::before{content:"";width:6px;height:6px;margin-top:8px;background:var(--rust);flex:0 0 auto;}
.placeholder-note{font-size:.78rem;color:var(--ink-soft);border-left:2px solid var(--rust);padding-left:10px;margin:18px 0;}

/* ---------- SERVICES ---------- */
.grid{display:grid;gap:20px;}
.services-grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));}
.card{background:var(--panel-2);border:1px solid var(--line);border-radius:3px;padding:26px;transition:border-color .25s,transform .25s;}
.card:hover{border-color:var(--rust);transform:translateY(-3px);}
.card .num{font-family:'IBM Plex Mono',monospace;color:var(--core-a);font-size:.8rem;margin-bottom:14px;}
.card h3{font-size:1.04rem;margin-bottom:8px;}
.card p{font-size:.88rem;margin-bottom:16px;}
.card a{font-size:.83rem;color:var(--rust-l);border-bottom:1px solid var(--rust);padding-bottom:2px;}

/* ---------- MINERALS TABS ---------- */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:32px;}
.tab-btn{padding:10px 18px;border:1px solid var(--line);background:transparent;color:#C7C2B6;border-radius:2px;font-size:.84rem;cursor:pointer;font-family:'Inter',sans-serif;}
.tab-btn.active{background:var(--rust);color:#12100C;border-color:var(--rust);}
.tab-panel{display:none;grid-template-columns:1fr 1fr;gap:40px;align-items:center;}
.tab-panel.active{display:grid;}
.tab-panel img{border-radius:3px;aspect-ratio:4/3;object-fit:cover;}

/* ---------- INDUSTRY / REGULATORY ---------- */
.reg-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:50px;align-items:start;}
.reg-stats{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.reg-stat{background:var(--panel-2);border:1px solid var(--line);padding:20px;border-radius:3px;}
.reg-stat b{display:block;font-family:'Space Grotesk',sans-serif;color:var(--rust-l);font-size:1.5rem;}
.reg-stat span{font-size:.76rem;color:var(--ink-soft);}
.reg-list{list-style:none;padding:0;margin:18px 0;display:grid;gap:10px;}
.reg-list li{font-size:.88rem;color:#C7C2B6;padding-left:16px;position:relative;}
.reg-list li::before{content:"—";position:absolute;left:0;color:var(--rust);}
.source-note{font-size:.72rem;color:var(--ink-soft);margin-top:18px;}

/* ---------- PROJECTS ---------- */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:30px;}
.filter-btn{padding:8px 16px;border:1px solid var(--line);background:transparent;color:#C7C2B6;font-size:.8rem;border-radius:2px;cursor:pointer;font-family:'IBM Plex Mono',monospace;}
.filter-btn.active{background:var(--paper);color:var(--ink);border-color:var(--paper);}
.proj-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));}
.proj-card{position:relative;border-radius:3px;overflow:hidden;aspect-ratio:4/3;cursor:pointer;}
.proj-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s;}
.proj-card:hover img{transform:scale(1.06);}
.proj-overlay{position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(8,7,5,.94));display:flex;flex-direction:column;justify-content:flex-end;padding:18px;}
.proj-overlay .tag{font-family:'IBM Plex Mono',monospace;font-size:.7rem;color:var(--rust-l);margin-bottom:4px;}
.proj-overlay h4{font-size:.98rem;margin:0;}

/* project detail modal */
.pd-status{display:inline-block;font-family:'IBM Plex Mono',monospace;font-size:.72rem;padding:4px 10px;border-radius:2px;margin-bottom:14px;}
.pd-status.active{background:rgba(190,106,58,.18);color:var(--rust-l);border:1px solid var(--rust);}
.pd-status.completed{background:rgba(122,139,126,.18);color:var(--core-a);border:1px solid var(--core-a);}
.pd-meta{display:flex;flex-wrap:wrap;gap:18px;margin:14px 0 20px;font-size:.82rem;color:var(--ink-soft);font-family:'IBM Plex Mono',monospace;}
.pd-meta span b{color:var(--paper);font-family:'Inter',sans-serif;font-weight:500;}
.pd-services{list-style:none;padding:0;margin:14px 0;display:flex;flex-wrap:wrap;gap:8px;}
.pd-services li{font-size:.78rem;border:1px solid var(--line);padding:6px 12px;border-radius:2px;color:#C7C2B6;}

/* ---------- GALLERY / CAROUSEL ---------- */
.carousel{position:relative;}
.carousel-track{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;-webkit-overflow-scrolling:touch;
  border-radius:3px;gap:0;scrollbar-width:none;}
.carousel-track::-webkit-scrollbar{display:none;}
.carousel-track img{flex:0 0 100%;width:100%;scroll-snap-align:center;aspect-ratio:16/10;object-fit:cover;}
.carousel-track video{flex:0 0 100%;width:100%;scroll-snap-align:center;aspect-ratio:16/10;background:#000;}
.carousel-arrow{position:absolute;top:50%;transform:translateY(-50%);width:40px;height:40px;border-radius:50%;
  background:rgba(15,18,20,.72);border:1px solid var(--line);color:var(--paper);font-size:1.1rem;cursor:pointer;
  display:flex;align-items:center;justify-content:center;z-index:5;}
.carousel-arrow.prev{left:10px;}
.carousel-arrow.next{right:10px;}
.carousel-arrow:hover{border-color:var(--rust);color:var(--rust-l);}
.carousel-dots{display:flex;justify-content:center;gap:7px;margin-top:12px;}
.carousel-dots .dot{width:7px;height:7px;border-radius:50%;background:var(--line);cursor:pointer;padding:0;border:0;}
.carousel-dots .dot.active{background:var(--rust);width:18px;border-radius:4px;}
.carousel-count{position:absolute;bottom:10px;right:10px;background:rgba(15,18,20,.72);color:var(--paper);
  font-family:'IBM Plex Mono',monospace;font-size:.72rem;padding:3px 9px;border-radius:20px;z-index:5;}
.gallery-caption{text-align:center;font-size:.8rem;color:var(--ink-soft);margin-top:8px;}

/* ---------- TESTIMONIALS ---------- */
.testi-wrap{position:relative;max-width:720px;margin:0 auto;text-align:center;}
.testi{display:none;}
.testi.active{display:block;}
.testi p{font-family:'Space Grotesk',sans-serif;font-weight:500;font-size:1.25rem;color:var(--paper);}
.testi .who{font-family:'IBM Plex Mono',monospace;color:var(--rust-l);font-size:.8rem;margin-top:10px;}
.dots{display:flex;justify-content:center;gap:8px;margin-top:24px;}
.dot{width:8px;height:8px;border-radius:50%;background:var(--line);cursor:pointer;}
.dot.active{background:var(--rust);}

/* ---------- CERTS ---------- */
.certs{display:flex;flex-wrap:wrap;gap:14px;}
.cert-chip{border:1px solid var(--line);padding:10px 16px;border-radius:2px;font-size:.8rem;color:#C7C2B6;font-family:'IBM Plex Mono',monospace;}

/* ---------- CTA ---------- */
.cta-band{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line);text-align:center;}
.cta-band h2{font-size:clamp(1.5rem,3.2vw,2.2rem);max-width:16ch;margin:0 auto 10px;}
.cta-band p{max-width:44ch;margin:0 auto 26px;}
.cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;}

/* ---------- CONTACT ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;}
.contact-info li{list-style:none;margin-bottom:18px;font-size:.9rem;color:#C7C2B6;}
.contact-info b{display:block;color:var(--paper);font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:.98rem;margin-bottom:2px;}
form{display:grid;gap:14px;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
input,select,textarea{width:100%;background:var(--panel-2);border:1px solid var(--line);color:var(--paper);padding:12px 14px;border-radius:2px;font-family:inherit;font-size:.88rem;}
textarea{min-height:100px;resize:vertical;}
input:focus,select:focus,textarea:focus{outline:2px solid var(--rust);outline-offset:1px;}
label{font-size:.76rem;color:var(--ink-soft);margin-bottom:4px;display:block;font-family:'IBM Plex Mono',monospace;}

/* ---------- BLOG ---------- */
.blog-grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));}
.blog-card img{border-radius:3px;aspect-ratio:16/10;object-fit:cover;margin-bottom:14px;}
.blog-card .meta{font-family:'IBM Plex Mono',monospace;font-size:.72rem;color:var(--rust-l);margin-bottom:6px;}

/* ---------- FOOTER ---------- */
footer{background:var(--panel);border-top:1px solid var(--line);padding:60px 0 30px;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:40px;}
.foot-grid h4{font-size:.86rem;color:var(--rust-l);margin-bottom:14px;font-family:'IBM Plex Mono',monospace;}
.foot-grid ul{list-style:none;padding:0;margin:0;display:grid;gap:8px;}
.foot-grid a,.foot-grid li{font-size:.85rem;color:var(--ink-soft);}
.foot-bottom{border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.76rem;color:#736E60;}

/* ---------- MODAL ---------- */
.modal-bg{position:fixed;inset:0;background:rgba(8,7,5,.72);backdrop-filter:blur(4px);display:none;align-items:center;justify-content:center;z-index:900;padding:20px;}
.modal-bg.open{display:flex;}
.modal{background:var(--panel-2);border:1px solid var(--line);border-radius:4px;max-width:640px;width:100%;max-height:88vh;overflow-y:auto;padding:32px;position:relative;}
.modal-close{position:absolute;top:16px;right:16px;background:none;border:0;color:var(--paper);font-size:1.3rem;cursor:pointer;}
.confirm-box{display:none;text-align:center;padding:20px 0;}
.confirm-box.show{display:block;}
.confirm-box .check{width:52px;height:52px;border-radius:50%;background:var(--rust);color:#12100C;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:1.4rem;}

/* ---------- CHAT ---------- */
.chat-btn{position:fixed;bottom:24px;right:24px;bottom:calc(24px + env(safe-area-inset-bottom,0px));width:56px;height:56px;border-radius:50%;
  background:var(--rust);border:0;cursor:pointer;z-index:800;box-shadow:0 8px 24px rgba(0,0,0,.4);font-size:1.3rem;color:#12100C;}
.chat-win{position:fixed;bottom:90px;right:24px;bottom:calc(90px + env(safe-area-inset-bottom,0px));width:330px;max-width:88vw;height:440px;background:var(--panel-2);
  border:1px solid var(--line);border-radius:8px;display:none;flex-direction:column;overflow:hidden;z-index:800;box-shadow:0 20px 50px rgba(0,0,0,.5);}
.chat-win.open{display:flex;}
.chat-head{background:var(--rust);padding:16px;color:#12100C;}
.chat-head b{font-family:'Space Grotesk',sans-serif;}
.chat-body{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:10px;font-size:.85rem;}
.msg{padding:9px 12px;border-radius:6px;max-width:85%;}
.msg.bot{background:var(--ink);align-self:flex-start;border:1px solid var(--line);}
.msg.me{background:var(--rust);color:#12100C;align-self:flex-end;}
.quick{display:flex;flex-direction:column;gap:6px;padding:0 14px 14px;}
.quick button{text-align:left;background:var(--ink);border:1px solid var(--line);color:var(--paper);padding:8px 10px;border-radius:4px;font-size:.78rem;cursor:pointer;font-family:'Inter',sans-serif;}
.quick button:hover{border-color:var(--rust);}

.reveal{opacity:0;transform:translateY(14px);transition:opacity .55s ease,transform .55s ease;}
.reveal.show{opacity:1;transform:translateY(0);}

@media(max-width:900px){
  .navlinks,.navcta .btn-line{display:none;}
  .burger{display:flex;}
  .about-grid,.contact-grid,.reg-grid{grid-template-columns:1fr;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .field-row{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;}
  .masonry{columns:2 160px;}
  .tab-panel{grid-template-columns:1fr;}
  .reg-stats{grid-template-columns:1fr 1fr;}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;}}

/* search box (added for global search) */
.search-box{position:relative;}
@media(max-width:900px){ .search-box{display:none;} }

/* ---------- PROJECT MODAL: clean layout without visible scrollbars ---------- */
#projBg .modal{
  scrollbar-width:none;
  -ms-overflow-style:none;
}
#projBg .modal::-webkit-scrollbar{
  display:none;
  width:0;
  height:0;
}
#projBg .carousel-track{
  scrollbar-width:none;
  -ms-overflow-style:none;
}
#projBg .carousel-track::-webkit-scrollbar{
  display:none;
  width:0;
  height:0;
}