/* ============ Home (landing) ============ */

/* ---- hero ---- */
.hero{position:relative;min-height:max(100svh,720px);display:flex;flex-direction:column;justify-content:flex-end;overflow:hidden;isolation:isolate}
.hero__media{position:absolute;inset:0;z-index:-1;background:#02100f url(../img/hero-refinery-night-1280.webp) center/cover no-repeat}
.hero__video{width:100%;height:100%;object-fit:cover;object-position:50% 60%;transform:scale(1.04);animation:heroDrift 26s ease-in-out infinite alternate}
@keyframes heroDrift{to{transform:scale(1.12) translate3d(-1.2%,-1%,0)}}
.hero__shade{position:absolute;inset:0;background:
  linear-gradient(180deg,rgba(2,14,15,.78) 0%,rgba(2,14,15,.18) 22%,rgba(2,14,15,.10) 46%,rgba(2,14,15,.72) 78%,var(--abyss) 100%),
  linear-gradient(90deg,rgba(2,14,15,.82) 0%,rgba(2,14,15,.35) 46%,rgba(2,14,15,0) 70%),
  radial-gradient(60% 50% at 85% 20%,rgba(255,112,0,.10),transparent 70%)}
.hero__embers{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;mix-blend-mode:screen}
.hero__in{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,380px);gap:clamp(24px,4vw,64px);align-items:end;padding-top:calc(var(--hdr-h) + 48px)}
.hero__copy{display:flex;flex-direction:column;gap:26px;max-width:880px}
.hero__title{font-size:clamp(2.9rem,7.2vw,8.4rem);line-height:.9;letter-spacing:-.02em;max-width:11.5ch;text-shadow:0 12px 40px rgba(0,0,0,.45)}
.hero__lead{max-width:54ch;color:rgba(238,243,242,.82)}
.hero__cta{gap:14px}
.hero__stats{position:relative;margin-top:clamp(36px,5vw,64px);margin-bottom:clamp(28px,4vw,48px)}
.hero__stats .stats{border-radius:var(--r-l)}
.hero__scroll{position:absolute;left:50%;bottom:10px;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:8px;font-family:var(--font-mono);font-size:.62rem;letter-spacing:.3em;text-transform:uppercase;color:var(--text-faint)}
.hero__scroll i{width:1px;height:34px;background:linear-gradient(var(--orange),transparent);animation:scrollCue 2.2s var(--ease-io) infinite;transform-origin:top}
@keyframes scrollCue{0%{transform:scaleY(0)}45%{transform:scaleY(1);opacity:1}100%{transform:scaleY(1);opacity:0}}

/* RFQ tracker card */
.rfq{padding:22px 22px 18px;border-radius:24px;display:flex;flex-direction:column;gap:14px;align-self:end;margin-bottom:6px}
.rfq__top{display:flex;justify-content:space-between;align-items:center}
.rfq__k{font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--text-dim)}
.rfq__item{font-family:var(--font-display);font-weight:700;font-size:1.06rem;line-height:1.3;letter-spacing:.01em}
.rfq__item .faint{font-family:var(--font-mono);font-weight:400;font-size:.74rem;letter-spacing:.04em}
.rfq__steps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;counter-reset:s}
.rfq__steps li{position:relative;display:grid;grid-template-columns:22px 1fr;column-gap:10px;padding:7px 8px;border-radius:12px;transition:background .5s,opacity .5s;opacity:.5;counter-increment:s}
.rfq__steps li::before{content:counter(s,decimal-leading-zero);grid-row:span 2;font-family:var(--font-mono);font-size:.66rem;color:var(--text-faint);padding-top:2px}
.rfq__steps b{font-size:.86rem;font-weight:600}
.rfq__steps span{font-size:.74rem;color:var(--text-faint);line-height:1.35;display:none}
.rfq__steps li.is-done{opacity:.85}
.rfq__steps li.is-done::before{content:"\2713";color:var(--teal-400);font-family:var(--font-ui);font-weight:700}
.rfq__steps li.is-on{opacity:1;background:rgba(255,255,255,.07);box-shadow:inset 0 0 0 1px rgba(255,255,255,.1)}
.rfq__steps li.is-on::before{color:var(--orange)}
.rfq__steps li.is-on span{display:block}
.rfq__bar{height:3px;border-radius:3px;background:rgba(255,255,255,.08);overflow:hidden}
.rfq__bar i{display:block;height:100%;width:100%;transform-origin:left;transform:scaleX(var(--rfq,0.16));background:linear-gradient(90deg,var(--teal-400),var(--orange));transition:transform .9s var(--ease-out)}
@media (max-width:1000px){.hero__in{grid-template-columns:1fr}.rfq{display:none}}

/* ---- supply showcase ---- */
.supply{display:grid;grid-template-columns:minmax(260px,360px) minmax(0,1fr);gap:clamp(18px,3vw,36px);align-items:stretch}
.supply__tabs{align-self:start;position:sticky;top:110px}
.supply__tabs [role="tab"]{position:relative;overflow:hidden}
.supply__timer{position:absolute;left:18px;right:18px;bottom:6px;height:2px;border-radius:2px;background:rgba(255,255,255,.08);opacity:0;transition:opacity .3s}
.supply__timer::after{content:"";position:absolute;inset:0;transform-origin:left;transform:scaleX(0);background:var(--orange)}
.supply.is-cycling [aria-selected="true"] .supply__timer{opacity:1}
.supply.is-cycling [aria-selected="true"] .supply__timer::after{animation:tabTimer var(--cycle,7s) linear forwards}
@keyframes tabTimer{to{transform:scaleX(1)}}
.supply__stage{position:relative;min-height:clamp(420px,46vw,640px)}
.supply__panel{position:relative;height:100%}
.supply__img{position:absolute;inset:0;border-radius:var(--r-xl)}
.supply__img img{transform:scale(1.08);transition:transform 9s linear}
.supply__panel:not([hidden]) .supply__img img{transform:scale(1)}
.supply__img::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(2,14,15,0) 40%,rgba(2,14,15,.75)),linear-gradient(90deg,rgba(2,14,15,.5),transparent 55%)}
.supply__info{position:absolute;left:clamp(14px,2.4vw,32px);bottom:clamp(14px,2.4vw,32px);max-width:min(470px,calc(100% - 28px));padding:26px;border-radius:22px;display:flex;flex-direction:column;gap:12px;z-index:2}
@media (max-width:1000px){
  .supply{grid-template-columns:1fr}
  .supply__tabs{position:relative;top:0;flex-direction:row;overflow-x:auto;border-radius:999px;padding:6px}
  .supply__tabs .gtabs__ind{top:6px;left:0;height:calc(100% - 12px);width:var(--w,0px);transform:translateX(var(--x,0px));border-radius:999px}
  .supply__tabs [role="tab"]{min-height:42px;padding:0 16px;border-radius:999px;white-space:nowrap}
  .supply__tabs [role="tab"] small{display:none}
  .supply__stage{min-height:0}
  .supply__img{position:relative;aspect-ratio:4/3}
  .supply__info{position:relative;left:auto;bottom:auto;max-width:none;margin-top:-56px;margin-inline:12px}
}

/* ---- pinned pipeline ---- */
.flow{position:relative;background:radial-gradient(80% 60% at 50% 0%,rgba(40,160,154,.10),transparent 70%)}
.flow__pin{min-height:100svh;display:flex;flex-direction:column;justify-content:center;gap:clamp(36px,5vw,64px);padding-block:clamp(90px,10vw,130px);overflow:hidden}
.flow__head{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:32px;align-items:end}
.flow__rail{position:relative;width:max-content;padding-left:max(var(--gut),calc((100vw - var(--maxw)) / 2));padding-right:var(--gut);will-change:transform}
.flow__pipe{position:absolute;left:0;top:0;width:100%;height:60px;overflow:visible}
.flow__fill{transform-origin:0 50%;transform:scaleX(var(--flow,0));transform-box:fill-box}
.flow__steps{list-style:none;margin:0;padding:84px 0 0;display:flex;gap:28px}
.flow__step{width:min(340px,78vw);padding:28px 26px 30px;border-radius:24px;display:flex;flex-direction:column;gap:14px;min-height:300px;transition:transform .6s var(--ease-out),border-color .4s}
.flow__step::after{content:"";position:absolute;top:-56px;left:36px;width:2px;height:56px;background:linear-gradient(rgba(255,255,255,.25),rgba(255,255,255,.05))}
.flow__step.is-lit{border-color:rgba(255,154,77,.4)}
.flow__step.is-lit .flow__n{color:var(--orange)}
.flow__n{font-size:.78rem;letter-spacing:.14em;color:var(--text-faint);transition:color .4s}
.flow__ico{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;background:rgba(40,160,154,.12);border:1px solid rgba(167,220,214,.2);color:var(--teal-200)}
.flow__ico .ico{width:24px;height:24px}
.flow__step h3{font-family:var(--font-display);font-weight:800;text-transform:uppercase;font-size:1.5rem;letter-spacing:.005em}
.flow__step p{color:var(--text-dim);font-size:.95rem}
@media (max-width:860px){
  .flow__head{grid-template-columns:1fr}
  .flow__rail{width:auto;padding-inline:max(var(--gut),env(safe-area-inset-left,0px))}
  .flow__pipe{display:none}
  .flow__steps{flex-direction:column;padding-top:0;gap:16px;padding-left:22px;border-left:2px solid rgba(255,255,255,.1)}
  .flow__step{width:auto;min-height:0}
  .flow__step::after{display:none}
}

/* ---- network map ---- */
.net__grid{display:grid;grid-template-columns:1fr;gap:clamp(28px,4vw,56px)}
.net__copy{display:grid!important;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);column-gap:clamp(28px,5vw,80px);align-items:end}
.net__copy>.eyebrow,.net__copy>h2{grid-column:1}.net__copy>.lead{grid-column:2;grid-row:1/3}.net__copy>.net__legend{grid-column:1/-1}
.net__legend{list-style:none;margin:8px 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px 24px}
.net__legend li{display:grid;grid-template-columns:14px auto;column-gap:14px;row-gap:2px;align-items:center}
.net__legend li .faint{grid-column:2;font-size:.88rem}
.net__sw{width:12px;height:12px;border-radius:50%}
.net__sw--src{background:var(--teal-400);box-shadow:0 0 12px var(--teal-400)}
.net__sw--hub{background:var(--teal-200);box-shadow:0 0 12px var(--teal-200)}
.net__sw--dst{background:var(--orange);box-shadow:0 0 12px var(--orange)}
.net__map{padding:10px;border-radius:var(--r-xl);overflow:hidden}
.net__map canvas{width:100%;height:auto;aspect-ratio:240/92;border-radius:24px}
.net__hud{position:absolute;right:26px;top:22px;display:flex;flex-direction:column;align-items:flex-end;gap:2px;font-size:.66rem;letter-spacing:.14em;color:var(--text-faint);pointer-events:none}
@media (max-width:960px){.net__copy{grid-template-columns:1fr}.net__copy>.lead{grid-column:1;grid-row:auto}}
@media (max-width:640px){.net__map{margin-inline:calc(var(--gut)*-0.5)}}

/* ---- logistics modes ---- */
.modes{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.mode{position:relative;display:flex;flex-direction:column;justify-content:flex-end;gap:6px;aspect-ratio:3/4;padding:22px;border-radius:var(--r-l);overflow:hidden;isolation:isolate;border:1px solid var(--line);
  transition:transform .7s var(--ease-out),border-color .4s,box-shadow .7s var(--ease-out)}
.mode__img{position:absolute;inset:0;margin:0;z-index:-2}
.mode__img img,.mode__img video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1.4s var(--ease-out),opacity .6s}
.mode__img video{opacity:0}
.mode.is-playing .mode__img video{opacity:1}
.mode::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(2,14,15,.25),rgba(2,14,15,.05) 35%,rgba(2,14,15,.88))}
.mode:hover{transform:translateY(-6px);border-color:rgba(255,154,77,.45);box-shadow:0 40px 80px -40px rgba(0,0,0,.9)}
.mode:hover .mode__img img{transform:scale(1.08)}
.mode__ico{position:absolute;top:18px;left:18px;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}
.mode__ico .ico{width:22px;height:22px}
.mode__t{font-family:var(--font-display);font-weight:800;text-transform:uppercase;font-size:1.5rem;line-height:1}
.mode__p{color:var(--text-dim);font-size:.9rem;max-width:24ch}
.mode__go{position:absolute;right:18px;bottom:20px;width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:var(--orange);color:var(--orange-ink);transform:scale(.6) rotate(-45deg);opacity:0;transition:transform .6s var(--ease-spring),opacity .4s}
.mode:hover .mode__go,.mode:focus-visible .mode__go{opacity:1;transform:none}
@media (max-width:1000px){.modes{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.modes{grid-template-columns:1fr}.mode{aspect-ratio:16/11}}

/* ---- industries accordion ---- */
.ind{display:flex;gap:10px;height:clamp(460px,52vw,620px)}
.ind__p{position:relative;flex:1 1 0;min-width:0;border-radius:var(--r-l);overflow:hidden;isolation:isolate;border:1px solid var(--line);transition:flex-grow .9s var(--ease-out),border-color .4s}
.ind__p.is-open{flex-grow:4.2;border-color:rgba(255,154,77,.35)}
.ind__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transform:scale(1.06);transition:transform 1.6s var(--ease-out),filter .8s}
.ind__p:not(.is-open) .ind__bg{filter:saturate(.6) brightness(.75)}
.ind__p.is-open .ind__bg{transform:scale(1)}
.ind__p::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(2,14,15,.35),rgba(2,14,15,.1) 40%,rgba(2,14,15,.9))}
.ind__n{position:absolute;top:18px;left:20px;font-size:.74rem;letter-spacing:.14em;color:var(--orange-300)}
.ind__body{position:absolute;left:0;right:0;bottom:0;padding:24px;display:flex;flex-direction:column;gap:10px}
.ind__t{font-family:var(--font-display);font-weight:800;text-transform:uppercase;font-size:clamp(1.4rem,2.4vw,2.6rem);line-height:1;white-space:nowrap}
.ind__d{color:var(--text-dim);max-width:44ch;opacity:0;transform:translateY(12px);transition:opacity .5s,transform .8s var(--ease-out)}
.ind__p.is-open .ind__d{opacity:1;transform:none;transition-delay:.25s}
.ind__p:not(.is-open) .ind__t{writing-mode:vertical-rl;transform:rotate(180deg);font-size:1.25rem;letter-spacing:.06em}
@media (max-width:900px){
  .ind{flex-direction:column;height:auto}
  .ind__p{flex:none;height:220px}
  .ind__p:not(.is-open) .ind__t{writing-mode:horizontal-tb;transform:none}
  .ind__d{opacity:1;transform:none}
  .ind__p:not(.is-open) .ind__bg{filter:none}
}

/* ---- AI ---- */
.ai__grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(28px,5vw,80px);align-items:center}
.ai__viz{padding:clamp(12px,2vw,24px);border-radius:var(--r-xl);aspect-ratio:1;max-width:620px;width:100%;justify-self:center}
.ai__svg{width:100%;height:100%;overflow:visible}
.ai__lbl{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;fill:var(--teal-200)}
.ai__lbl--core{fill:#FFE3CC;font-size:11px;font-weight:500}
.ai__node circle{fill:#062626;stroke:rgba(167,220,214,.45);stroke-width:1.2}
.ai__node.is-hot circle{stroke:var(--orange);fill:#1A1206}
.ai__list{list-style:none;margin:6px 0 0;padding:0;display:grid;gap:14px}
.ai__list li{display:grid;grid-template-columns:28px 1fr;gap:12px;align-items:start;color:var(--text-dim)}
.ai__list li b{color:var(--text);font-weight:600}
.ai__list .ico{width:22px;height:22px;color:var(--orange);margin-top:2px}
@media (max-width:960px){.ai__grid{grid-template-columns:1fr}.ai__viz{max-width:460px}}
/* ---- steel sheet types mosaic ---- */
.steelgrid{display:grid!important;grid-template-columns:repeat(3,1fr);grid-auto-rows:1fr;gap:8px;padding:0;background:none}
.steelgrid a{position:relative;display:block;overflow:hidden;border-radius:16px;border:1px solid var(--line);min-height:120px}
.steelgrid img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease-out)}
.steelgrid a:hover img{transform:scale(1.07)}
.steelgrid a::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(2,14,15,.85))}
.steelgrid span{position:absolute;left:12px;bottom:10px;z-index:1;font:600 .82rem/1.2 var(--font-display,inherit);letter-spacing:.02em}
@media (max-width:640px){.steelgrid{grid-template-columns:repeat(2,1fr)}}
.supply__note{margin-top:22px;font-size:.92rem;color:var(--text-dim)}