/* ===========================================================
   GTP OILFIELD INDUSTRY — shared styles
   Design language carried over from v1:
   petroleum/steel + amber palette, Archivo / IBM Plex type.
   =========================================================== */

:root{
  --ink:#102530; --ink-2:#16323f; --steel:#41606e;
  --surface:#f4f5f2; --paper:#ffffff;
  --amber:#f2a100; --amber-ink:#8a5600;
  --border:#dee1da; --border-dark:rgba(255,255,255,.12);
  --text:#1b2a30; --muted:#5d6b6a; --muted-dark:#9fb1b6;
  --hazard:repeating-linear-gradient(135deg,var(--amber) 0 14px,#1a1a1a 14px 28px);
  --wa:#25d366; --wa-dark:#128c7e;
  --maxw:1180px; --r:4px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"IBM Plex Sans",system-ui,sans-serif;color:var(--text);background:var(--surface);line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.mono{font-family:"IBM Plex Mono",monospace;font-weight:500;letter-spacing:.04em}
.eyebrow{font-family:"IBM Plex Mono",monospace;font-size:.72rem;font-weight:500;letter-spacing:.22em;text-transform:uppercase;color:var(--amber-ink)}
h1,h2,h3{font-family:"Archivo",sans-serif;font-weight:800;line-height:1.04;letter-spacing:-.015em}
.display{font-size:clamp(2.3rem,6vw,4.4rem);font-weight:900;letter-spacing:-.03em}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--amber);outline-offset:2px}

/* ---------- header / toolbar ---------- */
header{position:sticky;top:0;z-index:60;background:rgba(16,37,48,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--border-dark)}
.bar{display:flex;align-items:center;justify-content:space-between;height:66px;gap:18px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;flex-shrink:0;background:none;border:0;cursor:pointer}
.brand-icon{height:36px;width:auto;display:block;flex-shrink:0}
.brand .nm{font-family:"Archivo";font-weight:800;font-size:1.02rem;letter-spacing:-.01em;line-height:1.05;text-align:left}
.brand .nm small{display:block;font-family:"IBM Plex Mono";font-weight:400;font-size:.6rem;letter-spacing:.1em;color:var(--muted-dark);text-transform:uppercase;margin-top:2px}
.nav{display:flex;align-items:center;gap:6px}
.nav .navlink{display:inline-flex;align-items:center;gap:6px;color:#d6e0e2;font-size:.92rem;font-weight:500;padding:9px 14px;border-radius:var(--r);background:none;border:0;cursor:pointer;font-family:inherit;transition:color .15s,background .15s}
.nav .navlink:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav .navlink.active{color:var(--amber)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:"IBM Plex Sans";font-weight:600;font-size:.92rem;padding:11px 20px;border-radius:var(--r);border:1px solid transparent;cursor:pointer;transition:transform .12s ease,background .15s,color .15s;white-space:nowrap}
.btn-amber{background:var(--amber);color:var(--ink)}
.btn-amber:hover{background:#ffb31f;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.25)}
.btn-ghost:hover{border-color:#fff}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--ink-2);transform:translateY(-1px)}
.btn-wa{background:var(--wa);color:#053d22}
.btn-wa:hover{background:#2ee676;transform:translateY(-1px)}
.btn-lg{padding:14px 26px;font-size:1rem}

.menu-toggle{display:none;background:none;border:0;cursor:pointer;width:42px;height:42px;flex-shrink:0}
.menu-toggle span{display:block;width:22px;height:2px;background:#fff;margin:5px auto;transition:.2s}

/* ---------- hero ---------- */
/* homepage hero: subtle oilfield atmosphere image behind a deep-blue overlay */
.hero{background-color:var(--ink);background-image:url(/assets/img/hero-oilfield-bg.webp);background-size:cover;background-position:center right;background-repeat:no-repeat;color:#fff;position:relative;overflow:hidden;padding:74px 0 0}
/* overlay: opaque ink on the left (keeps headline readable) fading to subtle on the right */
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,rgba(16,37,48,.97) 0%,rgba(16,37,48,.9) 42%,rgba(16,37,48,.66) 72%,rgba(16,37,48,.52) 100%),linear-gradient(180deg,rgba(16,37,48,.2),rgba(16,37,48,.72)),radial-gradient(900px 420px at 84% -10%,rgba(242,161,0,.1),transparent 60%)}
/* mobile: near-uniform darkening so the image stays a faint atmosphere and text is fully readable */
@media(max-width:680px){
  .hero{background-position:62% center}
  .hero::before{background:linear-gradient(180deg,rgba(16,37,48,.86),rgba(16,37,48,.95)),radial-gradient(700px 360px at 80% -10%,rgba(242,161,0,.08),transparent 60%)}
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.55fr .9fr;gap:54px;align-items:end;padding-bottom:60px}
.hero h1{margin:18px 0 22px;color:#fff}
.hero h1 em{font-style:normal;color:var(--amber)}
.hero .lead{font-size:1.12rem;color:#cdd9db;max-width:46ch;margin-bottom:30px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-card{background:var(--ink-2);border:1px solid var(--border-dark);border-radius:6px;padding:24px 26px 8px}
.hero-card .row{display:grid;grid-template-columns:112px 1fr;align-items:baseline;column-gap:14px;padding:14px 0;border-bottom:1px solid var(--border-dark)}
.hero-card .row:last-child{border-bottom:0}
.hero-card .num{font-family:"Archivo";font-weight:900;font-size:1.5rem;color:var(--amber);line-height:1.1;white-space:nowrap}
.hero-card .lbl{font-size:.88rem;color:var(--muted-dark)}
.hero-card .lbl b{display:block;color:#fff;font-weight:600;font-size:.96rem}
.hazard-rule{height:8px;background:var(--hazard);opacity:.92}

/* page-head (interior pages) */
.page-head{background:var(--ink);color:#fff;position:relative;overflow:hidden;padding:60px 0}
.page-head::before{content:"";position:absolute;inset:0;background:radial-gradient(700px 320px at 88% -20%,rgba(242,161,0,.12),transparent 60%);pointer-events:none}
/* Products / Services banner atmosphere images (only these two pages) */
.page-head--products{background-image:url(/assets/img/products-banner.webp);background-size:cover;background-position:center;background-repeat:no-repeat}
.page-head--services{background-image:url(/assets/img/services-banner.webp);background-size:cover;background-position:center;background-repeat:no-repeat}
.page-head--products::before,.page-head--services::before{background:linear-gradient(90deg,rgba(16,37,48,.95) 0%,rgba(16,37,48,.86) 45%,rgba(16,37,48,.6) 80%,rgba(16,37,48,.5) 100%),linear-gradient(180deg,rgba(16,37,48,.25),rgba(16,37,48,.72)),radial-gradient(700px 320px at 88% -20%,rgba(242,161,0,.1),transparent 60%)}
@media(max-width:680px){
  .page-head--products,.page-head--services{background-position:60% center}
  .page-head--products::before,.page-head--services::before{background:linear-gradient(180deg,rgba(16,37,48,.85),rgba(16,37,48,.94)),radial-gradient(600px 280px at 80% -20%,rgba(242,161,0,.08),transparent 60%)}
}
.page-head .wrap{position:relative}
.page-head h1{font-size:clamp(2rem,5vw,3.2rem);color:#fff;margin:14px 0 14px}
.page-head p{color:#cdd9db;font-size:1.08rem;max-width:60ch}

section{padding:72px 0}
.sec-head{max-width:64ch;margin-bottom:42px}
/* centered intro variant (Services page) */
.sec-head--center{max-width:880px;margin-left:auto;margin-right:auto;text-align:center}
/* Services note below the cards: normal centered body text (not code-style) */
.svc-note{max-width:680px;margin:34px auto 0;text-align:center;font-size:.94rem;color:var(--muted);line-height:1.6}
/* wide variant: use full container width so the line fits on one line if it can, else wraps to two */
.svc-note--wide{max-width:none}
.sec-head h2{font-size:clamp(1.7rem,3.6vw,2.5rem);margin:12px 0 14px;color:var(--ink)}
.sec-head p{color:var(--muted);font-size:1.04rem}

/* ---------- info strip ---------- */
.strip{background:var(--paper);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.strip .wrap{padding-top:52px;padding-bottom:52px}
.strip-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.strip h2{font-size:clamp(1.5rem,3vw,2.1rem);color:var(--ink);line-height:1.12}
.strip p{color:var(--muted);font-size:1.04rem;margin-top:10px}
/* vertically center the checklist within its right column on desktop (single-column mobile is unaffected) */
.ticks{list-style:none;display:grid;gap:14px;align-self:center}
.ticks li{display:flex;gap:13px;align-items:flex-start;font-size:.98rem}
.tick{flex:0 0 auto;width:22px;height:22px;border-radius:3px;background:var(--amber);color:var(--ink);display:grid;place-items:center;font-weight:800;font-size:.8rem;margin-top:1px}

/* ---------- two-pillar / feature cards (dark) ---------- */
.dark-sec{background:var(--ink);color:#fff}
.dark-sec .sec-head h2{color:#fff}
.dark-sec .sec-head p{color:#bccacd}
.dark-sec .eyebrow{color:var(--amber);letter-spacing:.12em}
.pillar-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.pillar{background:var(--ink-2);border:1px solid var(--border-dark);border-radius:6px;padding:30px 28px}
.pillar .idx{font-family:"IBM Plex Mono";font-weight:600;font-size:.78rem;letter-spacing:.1em;color:var(--amber)}
.pillar h3{color:#fff;font-size:1.3rem;margin:8px 0 12px}
.pillar p{color:#b6c4c7;font-size:.98rem}

/* ---------- cta band ---------- */
.cta-band{background:var(--surface)}
.cta-inner{background:var(--ink);border-radius:10px;padding:46px 44px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;position:relative;overflow:hidden}
.cta-inner::after{content:"";position:absolute;right:-40px;top:-40px;width:200px;height:200px;background:radial-gradient(circle,rgba(242,161,0,.16),transparent 65%)}
.cta-inner h2{color:#fff;font-size:clamp(1.5rem,3vw,2.1rem);max-width:22ch}
.cta-inner p{color:#bccacd;margin-top:8px;font-size:1rem}

/* ---------- products / catalog (line-card style) ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
/* whole category card is a clickable link; flex column keeps tags bottom-aligned */
.card{display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--border);border-radius:6px;padding:24px 22px 22px;position:relative;color:inherit;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,border-color .18s}
.card:hover,.card:focus-visible{transform:translateY(-3px);box-shadow:0 16px 32px -16px rgba(16,37,48,.45);border-color:var(--amber)}
.card:focus-visible{outline:3px solid var(--amber);outline-offset:2px}
.card .idx{font-family:"IBM Plex Mono";font-weight:600;font-size:.84rem;color:var(--amber-ink);letter-spacing:.08em}
.card h3{font-size:1.12rem;font-weight:700;color:var(--ink);margin:10px 0 9px;letter-spacing:-.01em;line-height:1.18}
.card p{font-size:.94rem;color:var(--muted);margin-bottom:14px}
.card-foot{margin-top:auto}
.card-cue{display:inline-block;margin-top:12px;font-family:"IBM Plex Mono";font-size:.78rem;font-weight:600;letter-spacing:.04em;color:var(--amber-ink);transition:color .15s,transform .15s}
.card:hover .card-cue,.card:focus-visible .card-cue{color:var(--amber);transform:translateX(2px)}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{font-family:"IBM Plex Mono";font-size:.72rem;color:var(--steel);background:var(--surface);border:1px solid var(--border);border-radius:3px;padding:3px 7px}
.card::after{content:"";position:absolute;left:0;top:24px;width:3px;height:34px;background:var(--amber);border-radius:0 2px 2px 0}
.note-line{margin-top:26px;font-family:"IBM Plex Mono";font-size:.8rem;color:var(--muted)}

/* ---------- category detail: example product cards ---------- */
.back-link{display:inline-flex;align-items:center;gap:7px;font-family:"IBM Plex Mono";font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;color:var(--amber)}
.back-link:hover{color:#ffb31f}
/* compact catalogue tiles: 4 per row on desktop */
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.prod-card{background:var(--paper);border:1px solid var(--border);border-radius:6px;overflow:hidden;display:flex;flex-direction:column;transition:border-color .18s,box-shadow .18s}
.prod-card:hover{border-color:#c7cdc4;box-shadow:0 8px 20px -16px rgba(16,37,48,.4)}
/* small, neutral placeholder block — replace with GTP's own photos later */
.prod-card .ph{height:58px;background:linear-gradient(135deg,#eef0ec,#e2e6e0);display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--border);position:relative}
.prod-card .ph::before{content:"";position:absolute;left:0;top:0;width:100%;height:2px;background:var(--hazard);opacity:.6}
.prod-card .ph svg{width:24px;height:24px;opacity:.45;fill:var(--steel)}
.prod-card .prod-body{padding:13px 14px 15px;display:flex;flex-direction:column;gap:5px;flex:1}
.prod-card .prod-body h3{font-size:.95rem;font-weight:700;color:var(--ink);letter-spacing:-.01em;line-height:1.22}
.prod-card .prod-body p{font-size:.83rem;color:var(--muted);line-height:1.45}
/* unified CTA action rows (per-category section + floating widget) */
.cta-actions{display:flex;gap:10px;flex-wrap:wrap}
.wa-actions{display:flex;gap:8px;margin-top:2px}
.wa-actions .btn{flex:1;justify-content:center}

/* ---------- services list ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.svc{display:flex;gap:14px;align-items:flex-start;background:var(--paper);border:1px solid var(--border);border-radius:6px;padding:20px 22px}
.svc .n{font-family:"IBM Plex Mono";font-weight:600;font-size:.82rem;color:var(--amber-ink);flex:0 0 auto}
.svc h3{font-size:1.04rem;font-weight:700;color:var(--ink);margin-bottom:5px}
.svc p{font-size:.92rem;color:var(--muted)}

/* ---------- quote / contact ---------- */
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start}
.contact-info h2{font-size:clamp(1.6rem,3.2vw,2.3rem);color:var(--ink);margin-bottom:14px}
.contact-info p{color:var(--muted);margin-bottom:26px}
.info-list{display:grid;gap:18px}
.info-list div{border-left:3px solid var(--amber);padding-left:14px}
.info-list .k{font-family:"IBM Plex Mono";font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.info-list .v{font-weight:600;color:var(--ink);font-size:1.02rem}
.info-list .v a{color:var(--ink)}
.info-list .v a:hover{color:var(--amber-ink)}
form.qform{background:var(--paper);border:1px solid var(--border);border-radius:8px;padding:30px}
.field{margin-bottom:18px}
.field.two{display:grid;grid-template-columns:1fr 1fr;gap:16px}
label{display:block;font-size:.82rem;font-weight:600;color:var(--ink);margin-bottom:6px}
label .req{color:var(--amber-ink)}
input,select,textarea{width:100%;font-family:inherit;font-size:.96rem;color:var(--text);padding:11px 13px;border:1px solid var(--border);border-radius:var(--r);background:#fff}
textarea{resize:vertical;min-height:104px}
.form-note{font-size:.8rem;color:var(--muted);margin-top:14px}
.ok{display:none;background:#0f3a2c;color:#d7f5e7;border-radius:6px;padding:18px 20px;font-size:.95rem;margin-top:16px}
.ok.show{display:block}
.ok b{color:#fff}
.ok a{color:#9be8c6;text-decoration:underline}
.err{color:#b3261e;font-size:.82rem;margin-top:6px;display:none}
.err.show{display:block}
#formErr{margin-top:14px}
/* honeypot: visually hidden, kept in layout flow for bots */
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;opacity:0;pointer-events:none}

/* ---------- footer ---------- */
footer{background:var(--ink-2);color:#9fb1b6;padding:46px 0 28px;border-top:6px solid transparent;border-image:var(--hazard) 1}
/* controlled 3-column grid: brand slightly wider, Explore narrower, Contact medium */
.foot-top{display:grid;grid-template-columns:1.6fr 1fr 1.3fr;align-items:start;gap:28px 48px;padding-bottom:24px;border-bottom:1px solid var(--border-dark)}
.foot-brand{max-width:42ch}
.foot-logo{display:inline-block;line-height:0;margin-bottom:14px}
.foot-logo img{height:56px;width:auto;display:block}
.foot-top p{max-width:42ch;color:#9fb1b6;font-size:.9rem;margin-top:0}
/* let Explore + Contact become direct grid items of .foot-top */
.foot-cols{display:contents}
@media(max-width:760px){
  .foot-top{grid-template-columns:1fr 1fr}
  .foot-brand{grid-column:1 / -1}
}
@media(max-width:460px){
  .foot-top{grid-template-columns:1fr}
}
.foot-cols h4{font-family:"IBM Plex Mono";font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--amber);margin-bottom:14px;font-weight:600}
.foot-cols a{display:block;font-size:.92rem;color:#c2cfd1;margin-bottom:10px}
.foot-cols a:hover{color:#fff}
.foot-contact a{display:flex;align-items:flex-start;gap:10px}
.foot-contact a svg{width:16px;height:16px;flex:0 0 auto;margin-top:2px;fill:var(--amber)}
.foot-bottom{margin-top:22px;font-size:.8rem;color:var(--muted-dark);display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}

/* ---------- WhatsApp floating widget ---------- */
.wa-fab{position:fixed;right:22px;bottom:22px;z-index:80;width:58px;height:58px;border-radius:50%;background:var(--wa);border:0;cursor:pointer;box-shadow:0 12px 28px -8px rgba(18,140,126,.6);display:grid;place-items:center;transition:transform .15s}
.wa-fab:hover{transform:scale(1.06)}
.wa-fab svg{width:30px;height:30px;fill:#fff}
.wa-pop{position:fixed;right:22px;bottom:90px;z-index:80;width:320px;max-width:calc(100vw - 44px);background:var(--paper);border:1px solid var(--border);border-radius:12px;box-shadow:0 24px 54px -22px rgba(16,37,48,.55);overflow:hidden;display:none;animation:wa-rise .25s ease}
.wa-pop.open{display:block}
@keyframes wa-rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.wa-pop .wa-head{background:var(--wa-dark);color:#fff;padding:16px 18px;display:flex;align-items:center;gap:10px}
.wa-pop .wa-head b{font-family:"Archivo";font-weight:700;font-size:1rem}
.wa-pop .wa-body{padding:18px}
.wa-pop .wa-body p{font-size:.92rem;color:var(--muted);margin-bottom:16px}
.wa-pop .wa-phone{font-size:.92rem;color:var(--ink);font-weight:600;margin-bottom:16px}
.wa-pop .wa-phone .k{display:block;font-family:"IBM Plex Mono";font-weight:500;font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:3px}
.wa-pop .wa-phone a{color:var(--ink)}
.wa-pop .wa-phone a:hover{color:var(--amber-ink)}
.wa-pop .wa-body .btn{width:100%}
.wa-pop .wa-close{margin-left:auto;background:none;border:0;color:#cfeee0;cursor:pointer;font-size:1.2rem;line-height:1}

/* ---------- reveal animation ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media(max-width:920px){
  .hero-grid{grid-template-columns:1fr;gap:34px;align-items:start}
  .strip-grid,.contact-grid,.pillar-grid,.svc-grid{grid-template-columns:1fr;gap:24px}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:460px){
  .prod-grid{grid-template-columns:1fr}
}
@media(max-width:680px){
  .wrap{padding:0 20px}
  .nav{position:fixed;inset:66px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;background:var(--ink);border-bottom:1px solid var(--border-dark);padding:8px 20px 18px;transform:translateY(-130%);transition:transform .25s ease;max-height:calc(100vh - 66px);overflow:auto}
  .nav.open{transform:none}
  .nav .navlink{justify-content:space-between;padding:14px 4px;border-bottom:1px solid var(--border-dark);border-radius:0}
  .nav .btn{margin-top:14px;justify-content:center}
  .menu-toggle{display:block}
  .cat-grid{grid-template-columns:1fr}
  .field.two{grid-template-columns:1fr}
  section{padding:52px 0}
  .cta-inner{padding:34px 26px}
  form.qform{padding:24px 20px}
  /* keep the floating WhatsApp button clear of page content / submit button */
  body{padding-bottom:84px}
  .wa-fab{width:52px;height:52px;right:16px;bottom:16px}
  .wa-pop{right:16px;bottom:78px}
}
@media(prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important}
  .reveal{transition:none;opacity:1;transform:none}
  .card:hover{transform:none}
  .wa-pop{animation:none}
}