/* ==========================================================================
   GLACIER MINING LTD — Design System
   Industrial graphite foundation · safety-amber accent
   Type: Barlow Condensed (display) / Barlow (body)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@500;600;700&family=Barlow:wght@400;500;600;700&display=swap');

/* ------------------------------------------------------------------ tokens */
:root{
  /* graphite scale */
  --ink-950:#0B0E13;
  --ink-900:#10151C;
  --ink-800:#171E27;
  --ink-700:#222B37;
  --steel-600:#3D4959;
  --steel-500:#5A6675;
  --steel-400:#8B96A5;

  /* light surfaces */
  --paper:#FFFFFF;
  --surface:#F4F5F7;
  --surface-2:#ECEEF1;
  --line:#E2E6EB;
  --line-dark:rgba(255,255,255,.09);

  /* safety amber / copper accent */
  --amber-300:#F7B95C;
  --amber-400:#F2A33C;
  --amber-500:#E8912D;
  --amber-600:#C97417;
  --amber-text:#9A5B06;          /* accent for text on white — AA */

  /* semantic */
  --text:#1B222C;
  --text-soft:#4E5A69;
  --text-inverse:#F5F7FA;
  --text-inverse-soft:#AEB8C4;
  --success:#1F8A4C;
  --danger:#C22F2F;

  /* type */
  --font-display:'Barlow Condensed',system-ui,sans-serif;
  --font-body:'Barlow',system-ui,sans-serif;

  /* rhythm */
  --container:1240px;
  --gutter:24px;
  --section-y:clamp(72px,9vw,120px);
  --radius:2px;
  --cut:16px;                     /* beveled corner size */

  --shadow-1:0 2px 8px rgba(11,14,19,.06);
  --shadow-2:0 12px 32px rgba(11,14,19,.12);
  --shadow-3:0 24px 60px rgba(11,14,19,.22);

  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ------------------------------------------------------------------- base */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

html{scroll-behavior:smooth;overflow-x:clip}

body{
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.65;
  color:var(--text);
  background:var(--paper);
  overflow-x:clip;
  -webkit-font-smoothing:antialiased;
}

img,video{max-width:100%;display:block}
a{color:inherit}
ul{list-style:none}
button{font:inherit;cursor:pointer}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:700;
  line-height:1.08;
  color:inherit;
  text-transform:uppercase;
  letter-spacing:.01em;
}

.container{
  width:100%;
  max-width:var(--container);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

section{position:relative}
.section{padding-block:var(--section-y)}
.section--dark{background:var(--ink-900);color:var(--text-inverse)}
.section--muted{background:var(--surface)}

::selection{background:var(--amber-400);color:var(--ink-950)}

:focus-visible{
  outline:3px solid var(--amber-500);
  outline-offset:2px;
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms!important;
    animation-iteration-count:1!important;
    transition-duration:.01ms!important;
  }
}

/* ------------------------------------------------------- shared primitives */

/* eyebrow label above headings */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:12px;
  font-family:var(--font-body);
  font-size:13px;
  font-weight:700;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--amber-text);
  margin-bottom:14px;
}
.section--dark .eyebrow,
.stats-band .eyebrow,
.cta-strip .eyebrow,
.contact-panel .eyebrow,
.on-dark .eyebrow{color:var(--amber-400)}
.eyebrow::before{
  content:"";
  width:34px;height:2px;
  background:var(--amber-500);
  flex:none;
}

/* section heading block */
.section-head{max-width:720px;margin-bottom:clamp(40px,5vw,64px)}
.section-head--center{margin-inline:auto;text-align:center}
.section-head--center .eyebrow{justify-content:center}
.section-head h2{
  font-size:clamp(2.1rem,4.2vw,3.2rem);
  margin-bottom:14px;
}
.section-head p{color:var(--text-soft);font-size:1.06rem;max-width:60ch}
.section-head--center p{margin-inline:auto}
.section--dark .section-head p,
.stats-band .section-head p{color:var(--text-inverse-soft)}

/* hazard stripe accent (used sparingly) */
.hazard{
  height:6px;
  background:repeating-linear-gradient(
    -45deg,
    var(--amber-500) 0 14px,
    var(--ink-950) 14px 28px
  );
}

/* buttons — beveled industrial cut */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  min-height:52px;
  padding:14px 32px;
  font-family:var(--font-body);
  font-size:14px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  text-decoration:none;
  border:none;
  cursor:pointer;
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,0 100%);
  transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);
}
.btn i{font-size:.9em;transition:transform .25s var(--ease)}
.btn:hover i{transform:translateX(4px)}

.btn--primary{background:var(--amber-500);color:var(--ink-950)}
.btn--primary:hover{background:var(--amber-300)}

.btn--dark{background:var(--ink-900);color:#fff}
.btn--dark:hover{background:var(--ink-700)}

.btn--ghost{
  background:transparent;
  color:#fff;
  box-shadow:inset 0 0 0 2px rgba(255,255,255,.55);
  clip-path:none;
}
.btn--ghost:hover{box-shadow:inset 0 0 0 2px var(--amber-400);color:var(--amber-300)}

/* text arrow-link */
.arrow-link{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  font-size:14px;
  letter-spacing:.12em;
  text-transform:uppercase;
  text-decoration:none;
  color:var(--amber-text);
}
.arrow-link i{transition:transform .25s var(--ease)}
.arrow-link:hover i{transform:translateX(5px)}
.on-dark .arrow-link,
.section--dark .arrow-link{color:var(--amber-400)}

/* ------------------------------------------------------------ reveal motion */
.reveal{
  opacity:0;
  transform:translateY(26px);
  transition:opacity .7s var(--ease),transform .7s var(--ease);
  transition-delay:var(--d,0s);
}
.reveal.is-visible{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none}
}

/* =====================================================================
   TOPBAR + HEADER
   ===================================================================== */
.topbar{
  background:var(--ink-950);
  color:var(--text-inverse-soft);
  font-size:13px;
  border-bottom:1px solid var(--line-dark);
  position:relative;
  z-index:1002;
}
.topbar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:40px;
  padding-block:6px;
}
.topbar__item{display:inline-flex;align-items:center;gap:8px;text-decoration:none;color:inherit}
.topbar__item i{color:var(--amber-400);font-size:12px}
.topbar__item:hover{color:#fff}
.topbar__group{display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.topbar__certs{display:flex;align-items:center;gap:18px}
.topbar__certs span{display:inline-flex;align-items:center;gap:7px;letter-spacing:.08em;font-weight:600}
.topbar__certs i{color:var(--amber-400);font-size:12px}

.site-header{
  position:sticky;
  top:0;left:0;right:0;
  z-index:1001;
  background:var(--ink-950);
  border-bottom:1px solid var(--line-dark);
  transition:box-shadow .3s var(--ease);
}
.site-header.is-solid{box-shadow:0 6px 24px rgba(0,0,0,.35)}
.header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:84px;
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  color:#fff;
}
.brand__mark{
  width:44px;height:44px;
  flex:none;
  display:grid;
  place-items:center;
  background:var(--amber-500);
  color:var(--ink-950);
  font-size:20px;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%);
}
.brand__name{
  font-family:var(--font-display);
  font-size:26px;
  font-weight:700;
  letter-spacing:.04em;
  text-transform:uppercase;
  line-height:1;
}
.brand__name small{
  display:block;
  font-family:var(--font-body);
  font-size:10px;
  font-weight:600;
  letter-spacing:.34em;
  color:var(--amber-400);
  margin-top:4px;
}

.main-nav{display:flex;align-items:center;gap:8px}
.main-nav a{
  position:relative;
  display:block;
  white-space:nowrap;
  padding:10px 14px;
  font-size:14px;
  font-weight:600;
  letter-spacing:.1em;
  text-transform:uppercase;
  text-decoration:none;
  color:rgba(255,255,255,.85);
  transition:color .2s var(--ease);
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:2px;
  background:var(--amber-400);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .25s var(--ease);
}
.main-nav a:hover{color:#fff}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav li.is-active a{color:var(--amber-400)}
.main-nav li.is-active a::after{transform:scaleX(1)}

.header__cta{flex:none}

.nav-toggle{
  display:none;
  width:48px;height:48px;
  background:transparent;
  border:1px solid rgba(255,255,255,.25);
  color:#fff;
  font-size:19px;
  align-items:center;
  justify-content:center;
}
.nav-toggle:hover{border-color:var(--amber-400);color:var(--amber-400)}

/* mobile drawer */
.drawer-overlay{
  position:fixed;inset:0;
  background:rgba(8,10,14,.7);
  backdrop-filter:blur(2px);
  z-index:2000;
  opacity:0;visibility:hidden;
  transition:opacity .3s var(--ease),visibility .3s var(--ease);
}
.drawer-overlay.is-open{opacity:1;visibility:visible}

.drawer{
  position:fixed;
  top:0;bottom:0;left:0;
  width:min(320px,86vw);
  background:var(--ink-900);
  color:var(--text-inverse);
  z-index:2001;
  padding:28px 26px;
  transform:translateX(-102%);
  transition:transform .38s var(--ease);
  overflow-y:auto;
  display:flex;
  flex-direction:column;
  border-right:3px solid var(--amber-500);
}
.drawer.is-open{transform:none}

.drawer__head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:28px;
}
.drawer__close{
  width:44px;height:44px;
  background:transparent;
  border:1px solid var(--line-dark);
  color:var(--text-inverse);
  font-size:17px;
}
.drawer__close:hover{border-color:var(--amber-400);color:var(--amber-400)}

.drawer__nav li{border-bottom:1px solid var(--line-dark)}
.drawer__nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:15px 2px;
  text-decoration:none;
  font-family:var(--font-display);
  font-size:19px;
  font-weight:600;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:rgba(255,255,255,.88);
}
.drawer__nav a i{font-size:12px;color:var(--steel-400)}
.drawer__nav a:hover,
.drawer__nav li.is-active a{color:var(--amber-400)}

.drawer__contact{
  margin-top:auto;
  padding-top:26px;
  font-size:14px;
  color:var(--text-inverse-soft);
}
.drawer__contact p{display:flex;gap:10px;align-items:center;margin-bottom:10px}
.drawer__contact i{color:var(--amber-400);width:16px}
.drawer__contact .btn{width:100%;margin-top:14px}

/* =====================================================================
   HOME HERO
   ===================================================================== */
.hero{
  position:relative;
  min-height:calc(100svh - 124px);
  display:flex;
  flex-direction:column;
  background:var(--ink-950);
  color:#fff;
  overflow:hidden;
}
.hero__media,
.hero__media video{
  position:absolute;inset:0;
  width:100%;height:100%;
  object-fit:cover;
}
.hero__scrim{
  position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(9,12,17,.92) 0%,rgba(9,12,17,.72) 45%,rgba(9,12,17,.28) 100%),
    linear-gradient(0deg,rgba(9,12,17,.9) 0%,transparent 32%);
}
.hero__body{
  position:relative;
  z-index:2;
  flex:1;
  display:flex;
  align-items:center;
  padding-block:140px 80px;
}
.hero__content{max-width:760px}
.hero__kicker{
  display:inline-flex;
  align-items:center;
  gap:12px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.26em;
  text-transform:uppercase;
  color:var(--amber-400);
  margin-bottom:22px;
}
.hero__kicker::before{content:"";width:44px;height:2px;background:var(--amber-500)}
.hero h1{
  font-size:clamp(2.9rem,7.2vw,5.4rem);
  letter-spacing:.005em;
  margin-bottom:24px;
}
.hero h1 .accent{color:var(--amber-400)}
.hero__lede{
  font-size:clamp(1.02rem,1.4vw,1.2rem);
  line-height:1.7;
  color:rgba(255,255,255,.82);
  max-width:56ch;
  margin-bottom:38px;
}
.hero__actions{display:flex;gap:16px;flex-wrap:wrap}

/* stat strip pinned to hero bottom */
.hero__stats{
  position:relative;
  z-index:2;
  border-top:1px solid rgba(255,255,255,.14);
  background:rgba(10,13,18,.55);
  backdrop-filter:blur(6px);
}
.hero__stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
}
.hero-stat{
  padding:26px 28px;
  border-left:1px solid rgba(255,255,255,.12);
}
.hero-stat:first-child{border-left:none}
.hero-stat strong{
  display:block;
  font-family:var(--font-display);
  font-size:clamp(1.9rem,3vw,2.6rem);
  font-weight:700;
  color:var(--amber-400);
  line-height:1;
}
.hero-stat > span{
  display:block;
  margin-top:7px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:rgba(255,255,255,.68);
}

.hero__scroll{
  position:absolute;
  right:38px;
  bottom:130px;
  z-index:3;
  writing-mode:vertical-rl;
  display:inline-flex;
  align-items:center;
  gap:12px;
  font-size:11px;
  letter-spacing:.32em;
  text-transform:uppercase;
  color:rgba(255,255,255,.6);
  text-decoration:none;
}
.hero__scroll::after{
  content:"";
  width:1px;height:52px;
  background:linear-gradient(180deg,var(--amber-400),transparent);
  animation:scrollPulse 2.2s var(--ease) infinite;
}
@keyframes scrollPulse{
  0%{transform:scaleY(0);transform-origin:top}
  45%{transform:scaleY(1);transform-origin:top}
  55%{transform:scaleY(1);transform-origin:bottom}
  100%{transform:scaleY(0);transform-origin:bottom}
}

/* =====================================================================
   PAGE HERO (subpages)
   ===================================================================== */
.page-hero{
  position:relative;
  min-height:380px;
  display:flex;
  align-items:flex-end;
  background:var(--ink-950);
  color:#fff;
  overflow:hidden;
  padding-top:120px;
}
.page-hero__media{
  position:absolute;inset:0;
  width:100%;height:100%;
  object-fit:cover;
  opacity:.5;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(9,12,17,.9) 0%,rgba(9,12,17,.55) 60%,rgba(9,12,17,.25) 100%);
}
.page-hero .container{position:relative;z-index:2;padding-bottom:52px}
.page-hero h1{font-size:clamp(2.6rem,5.5vw,4.2rem);margin-bottom:14px}
.breadcrumbs{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.14em;
  text-transform:uppercase;
}
.breadcrumbs a{color:var(--amber-400);text-decoration:none}
.breadcrumbs a:hover{color:var(--amber-300)}
.breadcrumbs i{font-size:10px;color:rgba(255,255,255,.5)}
.breadcrumbs span{color:rgba(255,255,255,.75)}
.page-hero .hazard{position:absolute;left:0;right:0;bottom:0;z-index:3}

/* =====================================================================
   TRUST BAR
   ===================================================================== */
.trustbar{background:var(--paper);border-bottom:1px solid var(--line)}
.trustbar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding-block:22px;
  flex-wrap:wrap;
}
.trustbar__label{
  font-size:13px;
  font-weight:700;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--steel-500);
}
.trustbar__items{display:flex;align-items:center;gap:34px;flex-wrap:wrap}
.trustbar__items span{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-display);
  font-size:19px;
  font-weight:600;
  letter-spacing:.05em;
  text-transform:uppercase;
  color:var(--steel-600);
}
.trustbar__items i{color:var(--amber-500);font-size:16px}

/* =====================================================================
   ABOUT SPLIT
   ===================================================================== */
.about-grid{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:clamp(40px,6vw,88px);
  align-items:center;
}

.about-media{position:relative;padding-bottom:56px;padding-right:56px}
.about-media__main{
  width:100%;
  height:480px;
  object-fit:cover;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 36px),calc(100% - 36px) 100%,0 100%);
}
.about-media__inset{
  position:absolute;
  right:0;bottom:0;
  width:52%;
  height:250px;
  object-fit:cover;
  border:8px solid var(--paper);
  box-shadow:var(--shadow-2);
}
.about-media__badge{
  position:absolute;
  left:-2px;bottom:24px;
  background:var(--amber-500);
  color:var(--ink-950);
  padding:22px 26px;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 18px),calc(100% - 18px) 100%,0 100%);
  box-shadow:var(--shadow-2);
}
.about-media__badge strong{
  display:block;
  font-family:var(--font-display);
  font-size:3rem;
  font-weight:700;
  line-height:.95;
}
.about-media__badge span{
  font-size:12px;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
}

.about-copy h2{font-size:clamp(2rem,3.8vw,2.9rem);margin-bottom:18px}
.about-copy>p{color:var(--text-soft);margin-bottom:16px;max-width:58ch}

.checklist{margin:26px 0 30px;display:grid;gap:12px}
.checklist li{
  display:flex;
  gap:13px;
  align-items:flex-start;
  font-weight:500;
}
.checklist i{
  color:var(--amber-500);
  font-size:17px;
  margin-top:4px;
  flex:none;
}

.about-cta-row{
  display:flex;
  align-items:center;
  gap:30px;
  flex-wrap:wrap;
  padding-top:8px;
}
.about-contact{display:flex;align-items:center;gap:14px}
.about-contact i{
  width:50px;height:50px;
  display:grid;place-items:center;
  background:var(--ink-900);
  color:var(--amber-400);
  font-size:18px;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%);
}
.about-contact small{
  display:block;
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--steel-500);
  font-weight:600;
}
.about-contact a{
  font-family:var(--font-display);
  font-size:20px;
  font-weight:600;
  text-decoration:none;
  color:var(--text);
}
.about-contact a:hover{color:var(--amber-text)}

/* =====================================================================
   SERVICES (dark)
   ===================================================================== */
.services-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.services-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.service-card{
  position:relative;
  background:var(--ink-800);
  border:1px solid var(--line-dark);
  padding:34px 30px 30px;
  display:flex;
  flex-direction:column;
  overflow:hidden;
  transition:transform .3s var(--ease),border-color .3s var(--ease),background .3s var(--ease);
}
.service-card::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:3px;
  background:var(--amber-500);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .35s var(--ease);
}
.service-card:hover{transform:translateY(-6px);border-color:rgba(242,163,60,.35);background:var(--ink-700)}
.service-card:hover::after{transform:scaleX(1)}

.service-card__top{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  margin-bottom:22px;
}
.service-card__icon{
  width:60px;height:60px;
  display:grid;place-items:center;
  background:rgba(242,163,60,.12);
  color:var(--amber-400);
  font-size:24px;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 14px),calc(100% - 14px) 100%,0 100%);
  transition:background .3s var(--ease),color .3s var(--ease);
}
.service-card:hover .service-card__icon{background:var(--amber-500);color:var(--ink-950)}
.service-card__num{
  font-family:var(--font-display);
  font-size:44px;
  font-weight:700;
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1px rgba(255,255,255,.16);
}
.service-card h3{font-size:1.45rem;margin-bottom:10px}
.service-card p{
  color:var(--text-inverse-soft);
  font-size:.96rem;
  margin-bottom:22px;
  flex:1;
}
.service-card .arrow-link{color:var(--amber-400);font-size:13px}

/* =====================================================================
   CAPABILITIES / WHY US
   ===================================================================== */
.cap-grid{
  display:grid;
  grid-template-columns:1fr 1.05fr;
  gap:clamp(40px,6vw,80px);
  align-items:center;
}
.cap-media{position:relative}
.cap-media img{
  width:100%;
  height:560px;
  object-fit:cover;
  clip-path:polygon(0 0,100% 0,100% 100%,36px 100%,0 calc(100% - 36px));
}
.cap-media__panel{
  position:absolute;
  right:-1px;bottom:34px;
  background:var(--ink-900);
  color:#fff;
  padding:24px 28px;
  display:flex;
  align-items:center;
  gap:16px;
  box-shadow:var(--shadow-2);
  border-left:4px solid var(--amber-500);
  max-width:320px;
}
.cap-media__panel i{font-size:30px;color:var(--amber-400)}
.cap-media__panel strong{
  display:block;
  font-family:var(--font-display);
  font-size:1.25rem;
  font-weight:700;
  text-transform:uppercase;
  line-height:1.15;
}
.cap-media__panel span{font-size:13px;color:var(--text-inverse-soft)}

.cap-list{display:grid;gap:8px;margin-top:8px}
.cap-item{
  display:flex;
  gap:22px;
  padding:22px 20px;
  border:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease);
}
.cap-item:hover{background:var(--surface);border-color:var(--line)}
.cap-item__num{
  font-family:var(--font-display);
  font-size:38px;
  font-weight:700;
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1.4px var(--amber-500);
  flex:none;
  width:64px;
}
.cap-item h3{font-size:1.3rem;margin-bottom:6px}
.cap-item p{color:var(--text-soft);font-size:.97rem}

/* =====================================================================
   MINERALS / PORTFOLIO
   ===================================================================== */
.filter-row{
  display:flex;
  justify-content:center;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:44px;
}
.filter-btn{
  padding:11px 24px;
  background:transparent;
  border:1px solid var(--line);
  color:var(--steel-600);
  font-size:13px;
  font-weight:700;
  letter-spacing:.12em;
  text-transform:uppercase;
  transition:all .25s var(--ease);
}
.filter-btn:hover{border-color:var(--amber-500);color:var(--amber-text)}
.filter-btn.is-active{
  background:var(--ink-900);
  border-color:var(--ink-900);
  color:var(--amber-400);
}
.section--dark .filter-btn{border-color:var(--line-dark);color:var(--text-inverse-soft)}
.section--dark .filter-btn.is-active{background:var(--amber-500);border-color:var(--amber-500);color:var(--ink-950)}

.mineral-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.mineral-card{
  position:relative;
  height:340px;
  overflow:hidden;
  background:var(--ink-800);
  text-decoration:none;
  display:block;
}
.mineral-card img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .6s var(--ease),opacity .4s var(--ease);
}
.mineral-card:hover img{transform:scale(1.06)}
.mineral-card__veil{
  position:absolute;inset:0;
  background:linear-gradient(0deg,rgba(9,12,17,.92) 0%,rgba(9,12,17,.25) 45%,transparent 70%);
}
.mineral-card__body{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:24px 26px;
  color:#fff;
  transform:translateY(8px);
  transition:transform .35s var(--ease);
}
.mineral-card:hover .mineral-card__body{transform:none}
.mineral-card__tag{
  display:inline-block;
  padding:5px 12px;
  margin-bottom:12px;
  background:var(--amber-500);
  color:var(--ink-950);
  font-size:11px;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
}
.mineral-card h3{font-size:1.5rem;margin-bottom:6px}
.mineral-card p{
  font-size:.92rem;
  color:rgba(255,255,255,.78);
  max-width:40ch;
  opacity:0;
  transition:opacity .35s var(--ease);
}
.mineral-card:hover p{opacity:1}

/* =====================================================================
   STATS BAND
   ===================================================================== */
.stats-band{
  position:relative;
  background:var(--ink-900) url('https://images.pexels.com/photos/2101137/pexels-photo-2101137.jpeg?auto=compress&w=1600') center/cover fixed no-repeat;
  color:#fff;
}
.stats-band::before{content:"";position:absolute;inset:0;background:rgba(11,14,19,.88)}
.stats-band .container{position:relative;z-index:2}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
}
.stat-block{
  border:1px solid var(--line-dark);
  background:rgba(255,255,255,.03);
  padding:38px 26px 32px;
  text-align:center;
  transition:border-color .3s var(--ease),transform .3s var(--ease);
}
.stat-block:hover{border-color:rgba(242,163,60,.4);transform:translateY(-5px)}
.stat-block i{font-size:26px;color:var(--amber-400);margin-bottom:16px;display:block}
.stat-block strong{
  display:block;
  font-family:var(--font-display);
  font-size:clamp(2.6rem,4vw,3.4rem);
  font-weight:700;
  line-height:1;
}
.stat-block strong sup{font-size:.5em;color:var(--amber-400)}
.stat-block > span{
  display:block;
  margin-top:10px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--text-inverse-soft);
}

/* =====================================================================
   PROCESS
   ===================================================================== */
.process-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
  counter-reset:step;
}
.process-step{
  position:relative;
  background:var(--paper);
  border:1px solid var(--line);
  padding:34px 26px 30px;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.process-step:hover{transform:translateY(-6px);box-shadow:var(--shadow-2)}
.process-step::before{
  counter-increment:step;
  content:"0" counter(step);
  position:absolute;
  top:20px;right:22px;
  font-family:var(--font-display);
  font-size:42px;
  font-weight:700;
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1.2px var(--line);
  transition:-webkit-text-stroke .3s var(--ease);
}
.process-step:hover::before{-webkit-text-stroke:1.2px var(--amber-400)}
.process-step i{
  font-size:26px;
  color:var(--amber-500);
  margin-bottom:18px;
  display:block;
}
.process-step h3{font-size:1.3rem;margin-bottom:8px}
.process-step p{color:var(--text-soft);font-size:.95rem}

/* =====================================================================
   INSIGHTS / ARTICLE CARDS
   ===================================================================== */
.insight-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.insight-card{
  background:var(--paper);
  border:1px solid var(--line);
  display:flex;
  flex-direction:column;
  overflow:hidden;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.insight-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-2)}
.insight-card__media{position:relative;height:220px;overflow:hidden}
.insight-card__media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .6s var(--ease);
}
.insight-card:hover .insight-card__media img{transform:scale(1.06)}
.insight-card__cat{
  position:absolute;
  left:0;bottom:0;
  background:var(--amber-500);
  color:var(--ink-950);
  padding:6px 14px;
  font-size:11px;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
}
.insight-card__body{padding:26px;display:flex;flex-direction:column;flex:1}
.insight-card h3{font-size:1.35rem;margin-bottom:10px}
.insight-card p{color:var(--text-soft);font-size:.95rem;margin-bottom:20px;flex:1}

/* =====================================================================
   CTA STRIP
   ===================================================================== */
.cta-strip{
  position:relative;
  background:var(--ink-900);
  color:#fff;
  overflow:hidden;
}
.cta-strip::before{
  content:"";
  position:absolute;
  top:0;right:-80px;
  width:46%;height:100%;
  background:var(--amber-500);
  transform:skewX(-16deg);
  opacity:.12;
}
.cta-strip__inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:34px;
  flex-wrap:wrap;
  padding-block:clamp(48px,6vw,72px);
}
.cta-strip h2{font-size:clamp(1.9rem,3.6vw,2.8rem);max-width:22ch}
.cta-strip p{color:var(--text-inverse-soft);margin-top:10px;max-width:52ch}
.cta-strip__actions{display:flex;gap:16px;flex-wrap:wrap;flex:none}

/* =====================================================================
   VALUES / FEATURE TILES (about page)
   ===================================================================== */
.value-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.value-card{
  background:var(--paper);
  border:1px solid var(--line);
  border-top:3px solid var(--amber-500);
  padding:34px 28px;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.value-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-2)}
.value-card i{
  font-size:28px;
  color:var(--amber-500);
  margin-bottom:18px;
  display:block;
}
.value-card h3{font-size:1.35rem;margin-bottom:8px}
.value-card p{color:var(--text-soft);font-size:.96rem}

.section--dark .value-card{background:var(--ink-800);border-color:var(--line-dark);border-top-color:var(--amber-500)}
.section--dark .value-card p{color:var(--text-inverse-soft)}

/* timeline (about) */
.timeline{position:relative;max-width:840px;margin-inline:auto}
.timeline::before{
  content:"";
  position:absolute;
  left:19px;top:0;bottom:0;
  width:2px;
  background:var(--line);
}
.timeline-item{position:relative;padding:0 0 42px 66px}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{
  content:"";
  position:absolute;
  left:10px;top:4px;
  width:20px;height:20px;
  background:var(--paper);
  border:4px solid var(--amber-500);
  border-radius:50%;
}
.timeline-item time{
  font-family:var(--font-display);
  font-size:1.15rem;
  font-weight:700;
  color:var(--amber-text);
  letter-spacing:.06em;
}
.timeline-item h3{font-size:1.35rem;margin:6px 0 8px}
.timeline-item p{color:var(--text-soft);max-width:64ch}

/* =====================================================================
   COMMODITY DETAIL (gold / zinc pages)
   ===================================================================== */
.detail-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:clamp(40px,6vw,80px);
  align-items:center;
}
.detail-media{display:grid;grid-template-columns:1fr 1fr;grid-auto-rows:220px;gap:16px}
.detail-media img{width:100%;height:100%;object-fit:cover}
.detail-media img:first-child{grid-row:span 2;height:100%}

.spec-list{display:grid;gap:0;margin-top:26px;border-top:1px solid var(--line)}
.spec-list li{
  display:flex;
  justify-content:space-between;
  gap:20px;
  padding:14px 4px;
  border-bottom:1px solid var(--line);
  font-size:.98rem;
}
.spec-list li span:first-child{
  font-weight:700;
  letter-spacing:.06em;
  text-transform:uppercase;
  font-size:.82rem;
  color:var(--steel-500);
  padding-top:2px;
}
.spec-list li span:last-child{font-weight:500;text-align:right}

/* =====================================================================
   CONTACT PAGE
   ===================================================================== */
.contact-grid{
  display:grid;
  grid-template-columns:0.85fr 1.15fr;
  gap:clamp(36px,5vw,64px);
  align-items:start;
}
.contact-panel{
  background:var(--ink-900);
  color:var(--text-inverse);
  padding:clamp(30px,4vw,46px);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 26px),calc(100% - 26px) 100%,0 100%);
}
.contact-panel h2{font-size:1.9rem;margin-bottom:14px}
.contact-panel>p{color:var(--text-inverse-soft);margin-bottom:30px;font-size:.98rem}
.contact-panel ul{display:grid;gap:22px}
.contact-panel li{display:flex;gap:16px;align-items:flex-start}
.contact-panel li i{
  width:46px;height:46px;
  flex:none;
  display:grid;place-items:center;
  background:rgba(242,163,60,.14);
  color:var(--amber-400);
  font-size:17px;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 11px),calc(100% - 11px) 100%,0 100%);
}
.contact-panel li small{
  display:block;
  font-size:11px;
  font-weight:700;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--steel-400);
  margin-bottom:3px;
}
.contact-panel li a,
.contact-panel li span.val{
  color:#fff;
  text-decoration:none;
  font-weight:500;
  font-size:1rem;
  word-break:break-word;
}
.contact-panel li a:hover{color:var(--amber-300)}
.contact-panel__divider{height:1px;background:var(--line-dark);margin:30px 0}
.contact-panel .socials{display:flex;gap:10px}

.form-card h2{font-size:1.9rem;margin-bottom:8px}
.form-card>p{color:var(--text-soft);margin-bottom:28px}

.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-grid .full{grid-column:1/-1}

.field label{
  display:block;
  font-size:12px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--steel-600);
  margin-bottom:8px;
}
.field label em{color:var(--danger);font-style:normal}
.field input,
.field select,
.field textarea{
  width:100%;
  min-height:52px;
  padding:13px 16px;
  font:inherit;
  font-size:15px;
  color:var(--text);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  outline:none;
  transition:border-color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{min-height:150px;resize:vertical}
.field input:focus,
.field select:focus,
.field textarea:focus{
  border-color:var(--amber-500);
  background:#fff;
  box-shadow:0 0 0 3px rgba(232,145,45,.18);
}

.form-alert{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:15px 18px;
  margin-bottom:24px;
  font-size:.95rem;
  border-left:4px solid;
}
.form-alert i{margin-top:3px}
.form-alert--success{background:#EDF9F1;color:#14532D;border-color:var(--success)}
.form-alert--error{background:#FDEEEE;color:#7F1D1D;border-color:var(--danger)}

/* map / location strip */
.map-frame{
  width:100%;
  height:420px;
  border:0;
  display:block;
  filter:grayscale(.85) contrast(1.05);
}

/* =====================================================================
   FOOTER
   ===================================================================== */
.site-footer{
  background:var(--ink-950);
  color:var(--text-inverse-soft);
  font-size:.95rem;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:clamp(32px,4vw,56px);
  padding-block:clamp(56px,7vw,84px) 48px;
}
.footer-brand p{margin:18px 0 24px;max-width:38ch}
.footer-col h4{
  color:#fff;
  font-size:1.15rem;
  letter-spacing:.08em;
  margin-bottom:22px;
  position:relative;
  padding-bottom:12px;
}
.footer-col h4::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:34px;height:2px;
  background:var(--amber-500);
}
.footer-col ul{display:grid;gap:11px}
.footer-col ul a{
  display:inline-flex;
  align-items:center;
  gap:9px;
  color:var(--text-inverse-soft);
  text-decoration:none;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-col ul a i{font-size:10px;color:var(--amber-500)}
.footer-col ul a:hover{color:var(--amber-300);transform:translateX(3px)}

.footer-contact-list{display:grid;gap:16px}
.footer-contact-list li{display:flex;gap:13px;align-items:flex-start}
.footer-contact-list i{color:var(--amber-400);margin-top:4px;width:16px;flex:none}
.footer-contact-list a{color:var(--text-inverse-soft);text-decoration:none;word-break:break-word}
.footer-contact-list a:hover{color:var(--amber-300)}

.socials{display:flex;gap:10px}
.socials a{
  width:42px;height:42px;
  display:grid;place-items:center;
  border:1px solid var(--line-dark);
  color:var(--text-inverse-soft);
  font-size:15px;
  text-decoration:none;
  transition:all .25s var(--ease);
}
.socials a:hover{
  background:var(--amber-500);
  border-color:var(--amber-500);
  color:var(--ink-950);
  transform:translateY(-3px);
}

.footer-bottom{border-top:1px solid var(--line-dark)}
.footer-bottom__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-block:22px;
  font-size:.86rem;
}
.footer-bottom a{color:var(--amber-400);text-decoration:none}
.footer-bottom a:hover{color:var(--amber-300)}
.footer-bottom__links{display:flex;gap:22px}
.footer-bottom__links a{color:var(--text-inverse-soft)}

/* =====================================================================
   FLOATING UTILITIES
   ===================================================================== */
.whatsapp-fab{
  position:fixed;
  left:22px;bottom:22px;
  z-index:1500;
  width:54px;height:54px;
  display:grid;place-items:center;
  background:#22C15E;
  color:#fff;
  font-size:26px;
  border-radius:50%;
  text-decoration:none;
  box-shadow:0 8px 24px rgba(0,0,0,.25);
  transition:transform .25s var(--ease);
}
.whatsapp-fab:hover{transform:scale(1.08)}

.to-top{
  position:fixed;
  right:22px;bottom:22px;
  z-index:1500;
  width:48px;height:48px;
  display:grid;place-items:center;
  background:var(--amber-500);
  color:var(--ink-950);
  font-size:17px;
  border:none;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%);
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:all .3s var(--ease);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--amber-300)}

/* =====================================================================
   RESPONSIVE
   ===================================================================== */
@media (max-width:1100px){
  .main-nav a{padding:10px 10px;font-size:13px}
}

@media (max-width:1024px){
  .main-nav,.header__cta{display:none}
  .nav-toggle{display:inline-flex}

  .services-grid,
  .insight-grid,
  .value-grid,
  .mineral-grid{grid-template-columns:repeat(2,1fr)}

  .process-grid,
  .stats-grid,
  .hero__stats-grid{grid-template-columns:repeat(2,1fr)}
  .hero-stat:nth-child(3){border-left:none}
  .hero-stat{border-top:1px solid rgba(255,255,255,.12);padding:20px 22px}
  .hero-stat:nth-child(-n+2){border-top:none}

  .about-grid,
  .cap-grid,
  .detail-grid,
  .contact-grid{grid-template-columns:1fr}

  .cap-media img{height:440px}
  .about-media__main{height:420px}
  .hero__scroll{display:none}

  .stats-band{background-attachment:scroll}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}

@media (max-width:768px){
  :root{--section-y:clamp(56px,9vw,80px)}

  .topbar__certs{display:none}
  .topbar__group{gap:14px}

  .hero__body{padding-block:120px 56px}
  .hero__actions .btn{flex:1 1 auto}

  .detail-media{grid-auto-rows:170px}
  .services-head{align-items:flex-start}
}

@media (max-width:640px){
  .services-grid,
  .insight-grid,
  .value-grid,
  .mineral-grid,
  .process-grid,
  .form-grid{grid-template-columns:1fr}
  .form-grid .full{grid-column:auto}

  .stats-grid{grid-template-columns:1fr 1fr;gap:14px}
  .stat-block{padding:28px 16px 24px}

  .hero__stats-grid{grid-template-columns:1fr 1fr}
  .hero-stat{padding:16px 18px}
  .hero-stat strong{font-size:1.7rem}
  .hero-stat span{font-size:10px;letter-spacing:.12em}

  .about-media{padding-right:0;padding-bottom:0}
  .about-media__inset{display:none}
  .about-media__main{height:320px}
  .about-media__badge{left:14px;bottom:-18px;padding:16px 20px}
  .about-media__badge strong{font-size:2.2rem}
  .about-copy{margin-top:36px}

  .cap-media img{height:320px}
  .cap-media__panel{position:static;margin-top:-6px;max-width:none}
  .cap-item{padding:18px 4px;gap:16px}
  .cap-item__num{width:48px;font-size:30px}

  .detail-media{grid-template-columns:1fr;grid-auto-rows:200px}
  .detail-media img:first-child{grid-row:auto;height:240px}

  .footer-grid{grid-template-columns:1fr;gap:36px}
  .footer-bottom__inner{justify-content:center;text-align:center}

  .brand__name{font-size:21px}
  .brand__mark{width:38px;height:38px;font-size:16px}

  .topbar__inner{justify-content:center}
  .topbar__group .topbar__item:nth-child(3){display:none}

  .whatsapp-fab{width:48px;height:48px;font-size:22px;left:16px;bottom:16px}
  .to-top{right:16px;bottom:16px}

  .mineral-card{height:280px}
  .page-hero{min-height:300px;padding-top:100px}
}

@media (max-width:380px){
  .hero h1{font-size:2.5rem}
  .btn{padding:13px 22px;letter-spacing:.1em}
  .container{padding-inline:18px}
}

/* =====================================================================
   PRELOADER — headframe gate
   graphite overlay · clip-wipe wordmark · segmented amber bar ·
   exits by lifting upward with the hazard stripe on its bottom edge
   ===================================================================== */
html.is-preloading{overflow:hidden}

.preloader{
  position:fixed;
  inset:0;
  z-index:3000;
  display:grid;
  place-items:center;
  background:radial-gradient(120% 90% at 50% 8%,var(--ink-900) 0%,var(--ink-950) 72%);
  color:var(--text-inverse);
  transition:transform .8s cubic-bezier(.7,0,.3,1) .18s;
  will-change:transform;
}

/* faint engineering grid behind the lockup */
.preloader::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(75% 75% at 50% 45%,#000 0%,transparent 100%);
  mask-image:radial-gradient(75% 75% at 50% 45%,#000 0%,transparent 100%);
}

/* hazard stripe rides the gate's bottom edge */
.preloader::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:6px;
  background:repeating-linear-gradient(
    -45deg,
    var(--amber-500) 0 14px,
    var(--ink-950) 14px 28px
  );
}

.preloader__inner{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  width:min(340px,80vw);
  transition:opacity .3s var(--ease),transform .3s var(--ease);
}

.preloader__brand{
  display:flex;
  align-items:center;
  gap:15px;
  margin-bottom:36px;
}
.preloader__mark{
  width:54px;height:54px;
  flex:none;
  display:grid;
  place-items:center;
  background:var(--amber-500);
  color:var(--ink-950);
  font-size:24px;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 14px),calc(100% - 14px) 100%,0 100%);
  animation:pl-rise .6s var(--ease) both;
}
.preloader__name{
  font-family:var(--font-display);
  font-size:34px;
  font-weight:700;
  letter-spacing:.04em;
  text-transform:uppercase;
  line-height:1;
  clip-path:inset(0 100% 0 0);
  animation:pl-wipe .7s var(--ease) .25s forwards;
}
.preloader__name small{
  display:block;
  font-family:var(--font-body);
  font-size:11px;
  font-weight:600;
  letter-spacing:.34em;
  color:var(--amber-400);
  margin-top:6px;
}

.preloader__bar{
  position:relative;
  width:100%;
  height:3px;
  background:rgba(255,255,255,.12);
  overflow:hidden;
  animation:pl-rise .5s var(--ease) .55s both;
}
.preloader__fill{
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,var(--amber-600),var(--amber-400));
  transform:scaleX(0);
  transform-origin:left center;
}
/* segment ticks over the fill */
.preloader__bar::after{
  content:"";
  position:absolute;
  inset:0;
  background:repeating-linear-gradient(90deg,transparent 0 10px,var(--ink-950) 10px 12px);
}

.preloader__meta{
  display:flex;
  justify-content:space-between;
  align-items:baseline;
  width:100%;
  margin-top:13px;
  animation:pl-rise .5s var(--ease) .7s both;
}
.preloader__status{
  font-size:11px;
  font-weight:600;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--steel-400);
}
.preloader__pct{
  font-family:var(--font-display);
  font-size:20px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  min-width:52px;
  text-align:right;
}

/* exit — content fades, then the gate lifts */
.preloader.is-hidden{
  transform:translateY(-101%);
  pointer-events:none;
}
.preloader.is-hidden .preloader__inner{
  opacity:0;
  transform:translateY(-16px);
}

@keyframes pl-rise{
  from{opacity:0;transform:translateY(10px)}
  to{opacity:1;transform:none}
}
@keyframes pl-wipe{
  to{clip-path:inset(0 0 0 0)}
}

@media (max-width:380px){
  .preloader__mark{width:46px;height:46px;font-size:20px}
  .preloader__name{font-size:28px}
}