/* TET Energy - navy / copper / off-white, system fonts only */
:root{--tet-accent:#e08a3c;--tet-surface:#101a2e;--tet-navy:#0b1220;--tet-navy-2:#132038;--tet-offwhite:#f6f3ee;--tet-text:#1c2434;--tet-muted:#5b6577;--tet-radius:10px;--tet-maxw:1120px}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Ubuntu,"Helvetica Neue",Arial,sans-serif;line-height:1.6;color:var(--tet-text);background:var(--tet-offwhite)}
img,svg{max-width:100%;height:auto}
a{color:var(--tet-surface)}
.tet-container{max-width:var(--tet-maxw);margin:0 auto;padding:0 1.25rem}
.tet-section{padding:3.5rem 0}
.tet-section--surface{background:#fff;border-top:1px solid #e7e1d8;border-bottom:1px solid #e7e1d8}
.tet-narrow{max-width:720px}
.tet-h2{font-size:clamp(1.6rem,3vw,2.2rem);margin:0 0 1rem;color:var(--tet-navy)}
.tet-h3{font-size:1.15rem;margin:0 0 .5rem;color:var(--tet-navy)}
.tet-h6{font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;margin:0 0 .6rem}
.tet-lead{font-size:1.1rem;color:var(--tet-muted)}
.tet-eyebrow{color:var(--tet-accent);font-weight:700;letter-spacing:.12em;text-transform:uppercase;font-size:.8rem;margin:0 0 .75rem}
.tet-note{font-size:.9rem;color:var(--tet-muted);background:#fff8ee;border-left:3px solid var(--tet-accent);padding:.75rem 1rem;border-radius:4px}
.tet-content a{color:var(--tet-accent)}
.tet-main{outline:none}
/* Skip link */
.tet-skip-link{position:absolute;left:-9999px;top:0;background:var(--tet-navy);color:#fff;padding:.6rem 1rem;z-index:1000}
.tet-skip-link:focus{left:0}
/* Header */
.tet-header{background:var(--tet-navy);color:var(--tet-offwhite)}
.tet-header__inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:72px;flex-wrap:wrap}
.tet-brand__link{display:flex;align-items:center;gap:.6rem;color:inherit;text-decoration:none}
.tet-brand__mark{width:34px;height:34px}
.tet-brand__name{font-weight:700;display:block}
.tet-brand__tag{font-size:.72rem;opacity:.75;display:block;letter-spacing:.06em;text-transform:uppercase}
.tet-nav__list{list-style:none;display:flex;gap:1.1rem;margin:0;padding:0;align-items:center;flex-wrap:wrap}
.tet-nav__list a{color:var(--tet-offwhite);text-decoration:none;font-size:.95rem}
.tet-nav__list a:hover,.tet-nav__list a:focus{color:var(--tet-accent)}
.tet-nav-toggle{display:none;background:transparent;border:2px solid var(--tet-accent);border-radius:6px;padding:.55rem .7rem;cursor:pointer}
.tet-nav-toggle__bar{display:block;width:20px;height:2px;background:var(--tet-accent);position:relative}
.tet-nav-toggle__bar::before,.tet-nav-toggle__bar::after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--tet-accent)}
.tet-nav-toggle__bar::before{top:-6px}.tet-nav-toggle__bar::after{top:6px}
.tet-nav-toggle[aria-expanded="true"] .tet-nav-toggle__bar{background:transparent}
.tet-nav-toggle[aria-expanded="true"] .tet-nav-toggle__bar::before{top:0;transform:rotate(45deg)}
.tet-nav-toggle[aria-expanded="true"] .tet-nav-toggle__bar::after{top:0;transform:rotate(-45deg)}
.tet-custom-logo{max-height:60px;width:auto}
/* Buttons */
.tet-btn{display:inline-block;background:var(--tet-accent);color:var(--tet-navy);font-weight:700;padding:.7rem 1.4rem;border-radius:var(--tet-radius);text-decoration:none;border:none;cursor:pointer;font-size:1rem}
.tet-btn:hover,.tet-btn:focus{filter:brightness(1.08);color:var(--tet-navy)}
.tet-btn--ghost{background:transparent;color:var(--tet-offwhite);border:2px solid var(--tet-accent)}
.tet-btn--ghost:hover,.tet-btn--ghost:focus{color:var(--tet-accent)}
.tet-btn--large{padding:.9rem 2rem;font-size:1.1rem}
/* Hero */
.tet-hero{background:linear-gradient(135deg,var(--tet-navy) 0%,#1b2c4c 100%);color:var(--tet-offwhite);padding:4.5rem 0}
.tet-hero__grid{display:grid;grid-template-columns:1.3fr 1fr;gap:2.5rem;align-items:center}
.tet-hero__title{font-size:clamp(1.8rem,4vw,2.7rem);margin:0 0 1rem;color:#fff}
.tet-hero__lead{color:#c8cfdc;font-size:1.1rem}
.tet-hero__art{color:var(--tet-accent)}
/* Cards */
.tet-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.25rem;margin:1.5rem 0}
.tet-card{background:#fff;border:1px solid #e7e1d8;border-top:3px solid var(--tet-accent);border-radius:var(--tet-radius);padding:1.4rem;box-shadow:0 2px 6px rgba(11,18,32,.06)}
.tet-card__icon{color:var(--tet-accent)}
.tet-card p{color:var(--tet-muted);margin:0}
/* Callouts / corridors / timeline */
.tet-callouts{list-style:none;padding:0;margin:1rem 0;display:grid;gap:.6rem}
.tet-callouts li{background:#fff;border:1px solid #e7e1d8;border-left:3px solid var(--tet-accent);padding:.7rem 1rem;border-radius:4px}
.tet-corridors{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin:1.5rem 0}
.tet-corridor{background:#fff;border:1px solid #e7e1d8;border-radius:var(--tet-radius);padding:1.2rem;display:flex;gap:.9rem;align-items:center}
.tet-corridor__num{color:var(--tet-accent);font-weight:800;font-size:1.3rem}
.tet-timeline{list-style:none;counter-reset:tet-step;padding:0;margin:1.5rem 0;display:grid;gap:1rem}
.tet-timeline__item{background:#fff;border:1px solid #e7e1d8;border-radius:var(--tet-radius);padding:1.2rem 1.4rem;position:relative;counter-increment:tet-step}
.tet-timeline__item::before{content:"0" counter(tet-step);color:var(--tet-accent);font-weight:800;margin-right:.6rem}
.tet-timeline__item p{margin:.4rem 0 0;color:var(--tet-muted)}
/* Compliance split */
.tet-compliance{display:grid;grid-template-columns:1.4fr 1fr;gap:2rem;align-items:center}
.tet-compliance__art{color:var(--tet-accent);text-align:center}
/* Footer */
.tet-footer{background:var(--tet-navy);color:#c8cfdc;padding:3rem 0 1.5rem;margin-top:0}
.tet-footer__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:2rem}
.tet-footer h2{color:#fff}
.tet-footer__menu{list-style:none;padding:0;margin:0;display:grid;gap:.4rem}
.tet-footer__menu a{color:#c8cfdc;text-decoration:none}
.tet-footer__menu a:hover,.tet-footer__menu a:focus{color:var(--tet-accent)}
.tet-footer__widgets{margin-top:1rem}
.tet-footer__legal{border-top:1px solid #22314f;margin-top:2rem;padding-top:1.2rem;font-size:.85rem}
.tet-footer__legal p{margin:.3rem 0}
/* Post item */
.tet-post-item{background:#fff;border:1px solid #e7e1d8;border-radius:var(--tet-radius);padding:1.4rem;margin-bottom:1.25rem}
.tet-post-item a{text-decoration:none;color:var(--tet-navy)}
.tet-post-item a:hover{color:var(--tet-accent)}
.tet-featured{border-radius:var(--tet-radius);margin-bottom:1rem}
/* Inquiry form (styled when plugin active) */
.tet-form{background:#fff;border:1px solid #e7e1d8;border-radius:var(--tet-radius);padding:1.5rem;max-width:640px}
.tet-form label{display:block;font-weight:600;margin:.9rem 0 .3rem}
.tet-form .tet-required{color:var(--tet-accent)}
.tet-form input[type=text],.tet-form input[type=email],.tet-form input[type=tel],.tet-form input[type=url],.tet-form input[type=number],.tet-form select,.tet-form textarea{width:100%;padding:.6rem .7rem;border:1px solid #c9c2b6;border-radius:6px;font:inherit;background:var(--tet-offwhite)}
.tet-form input:focus,.tet-form select:focus,.tet-form textarea:focus{outline:2px solid var(--tet-accent);outline-offset:1px}
.tet-form__check{display:flex;gap:.5rem;align-items:flex-start;margin:1rem 0}
.tet-form__check input{margin-top:.3rem}
.tet-form__hp{position:absolute;left:-9999px}
.tet-form__status{margin:1rem 0;padding:.8rem 1rem;border-radius:6px}
.tet-form__status--ok{background:#e7f4ea;border-left:3px solid #2e7d43}
.tet-form__status--err{background:#fbeaea;border-left:3px solid #b3382c}
.tet-form__note{font-size:.85rem;color:var(--tet-muted)}
/* Reveal animation */
.tet-reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.tet-reveal.tet-reveal--in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.tet-reveal{opacity:1;transform:none;transition:none}*{animation:none!important;transition:none!important}}
/* Responsive */
@media (max-width:820px){
 .tet-hero__grid,.tet-compliance{grid-template-columns:1fr}
 .tet-hero{padding:3rem 0}
 .tet-nav-toggle{display:block}
 .tet-nav{display:none;width:100%}
 .tet-nav.is-open{display:block}
 .tet-nav__list{flex-direction:column;align-items:stretch;gap:0;padding-bottom:1rem}
 .tet-nav__list a{display:block;padding:.7rem .2rem;border-bottom:1px solid #22314f}
 .tet-nav__list .tet-btn{margin:.8rem 0 .2rem;text-align:center}
}
@media (max-width:480px){.tet-section{padding:2.5rem 0}}

/* 1.1 structural design layer */
:root{--tet-accent:#dc8b3d;--tet-green:#3f8f7b;--tet-ink:#111820;--tet-paper:#f4f6f5;--tet-line:#d9dfdc;--tet-radius:6px;--tet-maxw:1240px}
body{font-family:Aptos,"Segoe UI",Arial,sans-serif;background:var(--tet-paper);color:var(--tet-ink);letter-spacing:0}
h1,h2,h3,.tet-brand__name{font-family:Georgia,"Times New Roman",serif;letter-spacing:0}
.tet-header{position:sticky;top:0;z-index:100;background:rgba(11,18,32,.97);border-bottom:1px solid rgba(255,255,255,.12)}
.tet-header__inner{min-height:82px;flex-wrap:nowrap}
.tet-nav__list{gap:1.35rem}.tet-nav__list a{font-size:.86rem;text-transform:uppercase;font-weight:700}
.tet-hero{min-height:calc(82svh - 82px);display:grid;align-items:center;background:var(--tet-navy);padding:5rem 0 4rem;overflow:hidden;position:relative}
.tet-hero::after{content:"";position:absolute;inset:0 0 0 62%;border-left:1px solid rgba(255,255,255,.1);background:repeating-linear-gradient(90deg,transparent 0,transparent 79px,rgba(255,255,255,.035) 80px)}
.tet-hero__grid{grid-template-columns:minmax(0,1.45fr) minmax(280px,.75fr);gap:5rem;position:relative;z-index:1}
.tet-hero__title{font-size:4.6rem;line-height:1.02;max-width:780px;font-weight:600;margin-bottom:1.4rem}
.tet-hero__lead{max-width:680px;font-size:1.18rem;line-height:1.75}
.tet-hero__actions{display:flex;gap:.75rem;flex-wrap:wrap;margin:2rem 0}
.tet-hero .tet-note{background:transparent;border:0;border-left:1px solid rgba(255,255,255,.3);color:#aeb9c8;max-width:680px;border-radius:0}
.tet-hero__signal{border-top:1px solid rgba(255,255,255,.25);border-bottom:1px solid rgba(255,255,255,.25)}
.tet-hero__signal p{padding:1.25rem 0;margin:0;border-bottom:1px solid rgba(255,255,255,.12)}
.tet-hero__signal p:last-child{border-bottom:0}.tet-hero__signal span{display:block;color:var(--tet-accent);text-transform:uppercase;font-size:.72rem;font-weight:800;margin-bottom:.35rem}.tet-hero__signal strong{font-size:.93rem;color:#fff;font-weight:600}
.tet-scope{background:#fff;border-bottom:1px solid var(--tet-line)}
.tet-scope__grid{display:grid;grid-template-columns:repeat(4,1fr)}
.tet-scope__grid>div{padding:1.75rem 1.5rem;border-right:1px solid var(--tet-line)}.tet-scope__grid>div:last-child{border-right:0}
.tet-scope strong{display:block;font-family:Georgia,"Times New Roman",serif;font-size:2.4rem;color:var(--tet-navy);line-height:1}.tet-scope span{display:block;margin-top:.55rem;color:var(--tet-muted);font-size:.8rem;text-transform:uppercase;font-weight:700}
.tet-section{padding:6rem 0}.tet-section--surface{background:#fff;border-color:var(--tet-line)}
.tet-kicker{margin:0 0 .8rem;color:var(--tet-green);font-size:.76rem;font-weight:800;text-transform:uppercase}
.tet-h2{font-size:2.8rem;line-height:1.15;max-width:780px;margin-bottom:1.4rem}.tet-lead{font-size:1.25rem;max-width:900px;line-height:1.75}
.tet-cards{grid-template-columns:repeat(3,minmax(0,1fr));gap:0;border-top:1px solid var(--tet-line);border-bottom:1px solid var(--tet-line)}
.tet-card{border:0;border-right:1px solid var(--tet-line);border-radius:0;box-shadow:none;padding:2rem 1.7rem;min-height:250px}.tet-card:last-child{border-right:0}.tet-card:hover{background:#f8faf9}
.tet-card__icon{color:var(--tet-green)}.tet-card .tet-h3{font-size:1.45rem;margin-top:1.5rem}.tet-text-link{display:inline-block;margin-top:1.25rem;color:var(--tet-navy);font-weight:800;text-decoration:none;font-size:.85rem}
.tet-callouts{grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--tet-line);border-bottom:1px solid var(--tet-line)}.tet-callouts li{border:0;border-right:1px solid var(--tet-line);border-radius:0;background:transparent;padding:1rem 1.25rem}.tet-callouts li:last-child{border-right:0}
.tet-corridors{grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--tet-line);border-bottom:1px solid var(--tet-line)}.tet-corridor{border:0;border-right:1px solid var(--tet-line);border-radius:0;min-height:150px;align-items:flex-start}.tet-corridor:last-child{border-right:0}
.tet-timeline{grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--tet-line)}.tet-timeline__item{border:0;border-right:1px solid var(--tet-line);border-radius:0;padding:2rem 1.4rem;min-height:220px}.tet-timeline__item:last-child{border-right:0}.tet-timeline__item::before{display:block;font-size:1.7rem;margin:0 0 1.5rem}
.tet-section--cta{background:var(--tet-green);color:#fff}.tet-section--cta .tet-h2{color:#fff}
.tet-btn{border-radius:4px;padding:.78rem 1.25rem;text-transform:uppercase;font-size:.78rem;letter-spacing:0}.tet-btn--ghost{border-width:1px}
.tet-form{max-width:900px;border-radius:4px;padding:2rem}.tet-form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 1.25rem}.tet-form p{margin:.25rem 0 1rem}.tet-form label{margin:0 0 .35rem}.tet-form input[type=text],.tet-form input[type=email],.tet-form input[type=tel],.tet-form select,.tet-form textarea{min-height:48px;background:#fff;border-radius:3px}.tet-form textarea{min-height:150px}
.tet-form button[type=submit]{border:0;border-radius:4px;background:var(--tet-accent);color:var(--tet-navy);padding:.85rem 1.5rem;font:700 .82rem Aptos,"Segoe UI",Arial,sans-serif;text-transform:uppercase;cursor:pointer}.tet-form button[type=submit]:hover,.tet-form button[type=submit]:focus{filter:brightness(1.08)}
.tet-footer a{color:#c8cfdc}.tet-footer a:hover,.tet-footer a:focus{color:var(--tet-accent)}
@media (max-width:980px){.tet-hero__title{font-size:3.5rem}.tet-cards,.tet-timeline{grid-template-columns:repeat(2,1fr)}.tet-cards .tet-card:nth-child(2){border-right:0}.tet-scope__grid,.tet-corridors{grid-template-columns:repeat(2,1fr)}}
@media (max-width:820px){.tet-header__inner{flex-wrap:wrap}.tet-hero{min-height:auto}.tet-hero::after{display:none}.tet-hero__grid{grid-template-columns:1fr;gap:2.5rem}.tet-hero__title{font-size:2.8rem}.tet-section{padding:4rem 0}.tet-h2{font-size:2.2rem}.tet-nav__list a{text-transform:none;font-size:.95rem}}
@media (max-width:620px){.tet-scope__grid,.tet-cards,.tet-corridors,.tet-timeline,.tet-callouts,.tet-form-grid{grid-template-columns:1fr}.tet-scope__grid>div,.tet-card,.tet-corridor,.tet-timeline__item,.tet-callouts li{border-right:0;border-bottom:1px solid var(--tet-line)}.tet-hero__title{font-size:2.35rem}.tet-container{padding:0 1rem}}


/* Editorial photography layer */
.tet-hero{background-color:var(--tet-navy);background-image:linear-gradient(90deg,rgba(7,16,29,.97) 0%,rgba(7,16,29,.9) 45%,rgba(7,16,29,.5) 72%,rgba(7,16,29,.3) 100%),url("https://images.unsplash.com/photo-1585713181954-48d69dfb72e9?auto=format&fit=crop&w=1920&q=82");background-size:cover;background-position:center}
.tet-hero::after{inset:0;background:linear-gradient(180deg,transparent 65%,rgba(7,16,29,.72));border:0;pointer-events:none}
.tet-inline-media{margin:0 0 2.5rem;overflow:hidden;background:#dfe5e2;aspect-ratio:16/6}
.tet-inline-media img{display:block;width:100%;height:100%;object-fit:cover}
.tet-inline-media--products img{object-position:center 48%}
.tet-inline-media--markets{aspect-ratio:16/7}
@media(max-width:820px){.tet-hero{background-position:62% center}.tet-inline-media,.tet-inline-media--markets{aspect-ratio:16/9;margin-bottom:1.75rem}}


.tet-section-heading{display:grid;grid-template-columns:minmax(0,.8fr) minmax(420px,1.2fr);gap:3.5rem;align-items:end;margin-bottom:2.5rem}.tet-section-heading .tet-h2{margin-bottom:0}.tet-section-heading__media{margin:0;aspect-ratio:16/7;overflow:hidden}.tet-section-heading__media img,.tet-market-feature img{width:100%;height:100%;object-fit:cover;display:block}.tet-market-feature{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(300px,.65fr);gap:3.5rem;align-items:center;margin-bottom:3rem}.tet-market-feature figure{margin:0;aspect-ratio:16/9;overflow:hidden}.tet-market-feature p:last-child{max-width:420px;color:var(--tet-muted)}
@media(max-width:980px){.tet-section-heading,.tet-market-feature{grid-template-columns:1fr;gap:1.5rem}.tet-section-heading__media{aspect-ratio:16/8}}
@media(max-width:620px){.tet-section-heading__media,.tet-market-feature figure{aspect-ratio:16/10}}


/* 1.4 hero carousel */
.tet-hero{background:var(--tet-navy)}
.tet-hero-slider,.tet-hero-slide{position:absolute;inset:0}.tet-hero-slide{opacity:0;background-size:cover;background-position:center;transition:opacity .9s ease,transform 8s ease;transform:scale(1.025)}.tet-hero-slide.is-active{opacity:1;transform:scale(1)}.tet-hero-slider::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,18,31,.84) 0%,rgba(8,18,31,.6) 44%,rgba(8,18,31,.22) 76%,rgba(8,18,31,.1) 100%)}.tet-hero__grid{position:relative;z-index:2}.tet-slider-controls{position:absolute;right:max(1rem,calc((100vw - var(--tet-maxw))/2));bottom:1.4rem;z-index:3;display:flex;align-items:center;gap:.75rem}.tet-slider-arrow{width:38px;height:38px;border:1px solid rgba(255,255,255,.72);background:rgba(8,18,31,.28);color:#fff;cursor:pointer;font-size:1.05rem}.tet-slider-arrow:hover,.tet-slider-arrow:focus{background:var(--tet-accent);color:var(--tet-navy);border-color:var(--tet-accent)}.tet-slider-dots{display:flex;gap:.45rem}.tet-slider-dots button{width:24px;height:3px;padding:0;border:0;background:rgba(255,255,255,.46);cursor:pointer}.tet-slider-dots button.is-active{background:var(--tet-accent)}
@media(max-width:820px){.tet-hero-slide{background-position:60% center}.tet-hero-slider::after{background:linear-gradient(90deg,rgba(8,18,31,.86),rgba(8,18,31,.42))}.tet-slider-controls{right:1rem;bottom:.75rem}}
@media(prefers-reduced-motion:reduce){.tet-hero-slide{transition:none;transform:none}}