:root {
    --ink: #171918;
    --coal: #242726;
    --steel: #31505a;
    --orange: #e7661d;
    --yellow: #f2c94c;
    --paper: #f4f2ec;
    --mist: #e7eceb;
    --white: #ffffff;
    --grey: #626864;
    --line: #d8d8d0;
    --green: #1f9d55;
    --shadow: 0 18px 48px rgba(23, 25, 24, .12);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background: var(--paper); color: var(--ink); font-family: "Inter", Arial, sans-serif; line-height: 1.6; overflow-x: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
.container { margin: 0 auto; max-width: 1240px; padding: 0 28px; }
.section { padding: 94px 0; scroll-margin-top: 96px; }
h1, h2, h3, .brand, .eyebrow { font-family: "Oswald", Impact, sans-serif; letter-spacing: 0; line-height: 1.08; text-transform: uppercase; }
h1 { font-size: 4rem; max-width: 850px; }
h2 { font-size: 3rem; }
h3 { font-size: 1.4rem; }
p { color: var(--grey); }
.eyebrow { color: var(--orange); font-size: .86rem; font-weight: 700; margin-bottom: 16px; }
.skip-link { background: var(--yellow); left: 16px; padding: 10px 14px; position: fixed; top: -60px; z-index: 1000; }
.skip-link:focus { top: 16px; }

.site-header { left: 0; padding-top: 16px; position: fixed; right: 0; top: 0; z-index: 50; }
.nav-shell { align-items: center; background: rgba(23, 25, 24, .96); border: 1px solid rgba(255,255,255,.14); border-radius: 6px; box-shadow: 0 12px 32px rgba(0,0,0,.2); display: flex; justify-content: space-between; min-height: 72px; padding: 10px 12px 10px 16px; }
.brand { align-items: center; color: var(--white); display: flex; font-size: 1.1rem; font-weight: 700; gap: 12px; text-decoration: none; }
.brand img { background: var(--white); border-radius: 4px; height: 48px; object-fit: contain; padding: 3px; width: 60px; }
.site-nav { align-items: center; display: flex; gap: 8px; }
.site-nav a { color: rgba(255,255,255,.82); font-size: .9rem; font-weight: 700; padding: 11px 13px; text-decoration: none; }
.site-nav a:hover { color: var(--yellow); }
.site-nav .profile-link { background: var(--orange); border-radius: 4px; color: var(--white); padding-inline: 17px; }
.menu-button { background: transparent; border: 1px solid rgba(255,255,255,.35); border-radius: 4px; color: var(--white); display: none; font-weight: 700; min-height: 44px; padding: 0 14px; }

.hero { background: var(--ink); color: var(--white); min-height: 92vh; overflow: hidden; position: relative; }
.hero-media { background: url("assets/hero-drilling.jpg") center 55% / cover no-repeat; inset: 0; position: absolute; }
.hero-media::after { background: linear-gradient(90deg, rgba(16,18,17,.97) 0%, rgba(16,18,17,.83) 43%, rgba(16,18,17,.25) 77%, rgba(16,18,17,.08) 100%), linear-gradient(0deg, rgba(16,18,17,.75), transparent 52%); content: ""; inset: 0; position: absolute; }
.hero-content { display: flex; flex-direction: column; justify-content: flex-end; min-height: 90vh; padding-bottom: 22px; padding-top: 105px; position: relative; z-index: 1; }
.hero-copy { max-width: 860px; }
.hero h1 { color: var(--white); }
.hero-lead { color: rgba(255,255,255,.8); font-size: 1.15rem; margin: 18px 0 22px; max-width: 760px; }
.hero-actions { align-items: center; display: flex; flex-wrap: wrap; gap: 12px; }
.button { align-items: center; border: 1px solid transparent; border-radius: 4px; display: inline-flex; font-weight: 800; justify-content: center; min-height: 50px; padding: 13px 19px; text-decoration: none; }
.button-primary { background: var(--orange); color: var(--white); }
.button-primary:hover { background: #c94f0d; }
.button-outline { border-color: rgba(255,255,255,.5); color: var(--white); }
.button-dark { background: var(--ink); color: var(--white); }
.text-link { color: var(--white); font-weight: 700; padding: 10px 4px; text-decoration: none; }
.hero-facts { border-top: 1px solid rgba(255,255,255,.26); display: grid; gap: 0; grid-template-columns: repeat(3, 180px); margin-top: 20px; max-width: 620px; padding-top: 16px; }
.hero-facts div { border-right: 1px solid rgba(255,255,255,.22); padding-right: 26px; }
.hero-facts div + div { padding-left: 26px; }
.hero-facts div:last-child { border-right: 0; }
.hero-facts strong { display: block; font-family: "Oswald", Impact, sans-serif; font-size: 1.75rem; line-height: 1; }
.hero-facts span { color: rgba(255,255,255,.66); font-size: .84rem; font-weight: 600; }

.trust-strip { background: var(--yellow); }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.trust-grid span { border-right: 1px solid rgba(23,25,24,.2); font-size: .83rem; font-weight: 800; padding: 18px 20px; text-align: center; }
.trust-grid span:last-child { border-right: 0; }
.section-heading { align-items: end; display: grid; gap: 54px; grid-template-columns: 1fr 430px; margin-bottom: 44px; }
.section-heading > p { font-size: 1rem; }

.services { background: var(--paper); }
.service-grid { display: grid; gap: 18px; grid-template-columns: repeat(12, 1fr); }
.service-card { background: var(--white); border: 1px solid var(--line); border-radius: 6px; box-shadow: var(--shadow); color: var(--ink); grid-column: span 4; overflow: hidden; text-decoration: none; }
.service-featured { grid-column: span 8; }
.service-card img { aspect-ratio: 16 / 9; height: auto; object-fit: cover; width: 100%; }
.service-featured img { aspect-ratio: 2 / 1; }
.service-body { padding: 24px; }
.service-body > span { color: var(--orange); display: block; font-family: "Oswald", Impact, sans-serif; font-weight: 700; margin-bottom: 16px; }
.service-body h3 { margin-bottom: 12px; }
.service-body p { min-height: 78px; }
.service-body strong { color: var(--orange); display: block; font-size: .8rem; margin-top: 20px; text-transform: uppercase; }
.service-pathways { align-items: stretch; border-bottom: 1px solid var(--line); border-top: 1px solid var(--line); display: grid; grid-template-columns: 180px 1fr 1fr; margin-top: 28px; }
.service-pathways > span { align-items: center; color: var(--orange); display: flex; font-family: "Oswald", Impact, sans-serif; font-size: .8rem; font-weight: 700; text-transform: uppercase; }
.service-pathways a { display: flex; flex-direction: column; gap: 3px; padding: 18px 24px; text-decoration: none; }
.service-pathways a + a { border-left: 1px solid var(--line); }
.service-pathways strong { font-family: "Oswald", Impact, sans-serif; font-size: 1.08rem; text-transform: uppercase; }
.service-pathways small { color: var(--grey); font-size: .8rem; }
.service-pathways a:hover strong { color: var(--orange); }

.company-band { background: var(--white); display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(460px, .92fr); padding: 0; }
.company-media { min-height: 700px; }
.company-media img { height: 100%; object-fit: cover; object-position: center 70%; width: 100%; }
.company-copy { align-self: center; max-width: 650px; padding: 78px 72px; }
.company-copy > p:not(.eyebrow) { font-size: 1.06rem; margin: 22px 0 32px; }
.company-data { border-top: 1px solid var(--line); margin-bottom: 32px; }
.company-data div { border-bottom: 1px solid var(--line); display: grid; gap: 18px; grid-template-columns: 150px 1fr; padding: 15px 0; }
.company-data dt { color: var(--orange); font-size: .75rem; font-weight: 800; text-transform: uppercase; }
.company-data dd { font-weight: 700; }

.project-section { background: var(--mist); }
.project-gallery { display: grid; gap: 16px; grid-template-columns: 1.25fr .75fr; grid-template-rows: repeat(2, 250px); }
.project-gallery figure { background: var(--ink); border-radius: 6px; overflow: hidden; position: relative; }
.project-gallery .project-wide { grid-row: span 2; }
.project-gallery img { height: 100%; object-fit: cover; width: 100%; }
.project-gallery figcaption { background: linear-gradient(0deg, rgba(0,0,0,.8), transparent); bottom: 0; color: var(--white); font-size: .88rem; font-weight: 700; left: 0; padding: 40px 18px 16px; position: absolute; right: 0; }
.location-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.location-list span { border: 1px solid #bfc8c5; border-radius: 4px; font-size: .84rem; font-weight: 700; padding: 9px 12px; }

.delivery-section { background: var(--white); }
.delivery-layout { display: grid; gap: 80px; grid-template-columns: .8fr 1.2fr; }
.delivery-layout > div > p:last-child { font-size: 1.06rem; margin-top: 22px; }
.delivery-list { list-style: none; }
.delivery-list li { align-items: start; border-top: 1px solid var(--line); display: grid; gap: 24px; grid-template-columns: 48px 1fr; padding: 22px 0; }
.delivery-list li:last-child { border-bottom: 1px solid var(--line); }
.delivery-list li > span { color: var(--orange); font-family: "Oswald", Impact, sans-serif; font-size: 1rem; font-weight: 700; }
.delivery-list strong { font-family: "Oswald", Impact, sans-serif; font-size: 1.2rem; text-transform: uppercase; }

.credentials { background: var(--ink); color: var(--white); }
.light-heading h2 { color: var(--white); }
.light-heading > p { color: rgba(255,255,255,.68); }
.credential-grid { display: grid; gap: 18px; grid-template-columns: repeat(3, 1fr); }
.credential-grid article { border: 1px solid rgba(255,255,255,.18); border-radius: 6px; padding: 28px; }
.credential-grid article > span { color: var(--yellow); font-size: .75rem; font-weight: 800; text-transform: uppercase; }
.credential-grid h3 { color: var(--white); margin: 28px 0 12px; }
.credential-grid strong { color: var(--yellow); display: block; font-size: 1.15rem; margin-bottom: 16px; }
.credential-grid p { color: rgba(255,255,255,.64); }

.language-section { background: var(--yellow); }
.language-section.section { padding: 48px 0; }
.language-bar { align-items: center; display: grid; gap: 48px; grid-template-columns: 1.1fr 1fr auto; }
.language-section .eyebrow { color: #7b3d0e; }
.language-section h2 { font-size: 2.15rem; }
.language-bar > p { border-left: 1px solid rgba(23,25,24,.25); color: rgba(23,25,24,.76); padding-left: 38px; }
.language-cta { white-space: nowrap; }

.faq-section { background: var(--white); }
.faq-layout { display: grid; gap: 80px; grid-template-columns: .72fr 1.28fr; }
.faq-intro > p:last-child { font-size: 1.06rem; margin-top: 22px; }
.faq-list { border-bottom: 1px solid var(--line); }
.faq-list details { border-top: 1px solid var(--line); }
.faq-list summary { cursor: pointer; font-family: "Oswald", Impact, sans-serif; font-size: 1.22rem; font-weight: 600; list-style: none; padding: 24px 52px 24px 0; position: relative; text-transform: uppercase; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { color: var(--orange); content: "+"; font-family: "Inter", Arial, sans-serif; font-size: 1.5rem; font-weight: 500; position: absolute; right: 6px; top: 18px; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list summary:focus-visible { outline: 3px solid var(--yellow); outline-offset: 4px; }
.faq-list details p { max-width: 760px; padding: 0 52px 24px 0; }

.contact { background: var(--paper); }
.contact-layout { display: grid; gap: 72px; grid-template-columns: .9fr 1.1fr; }
.contact-copy > p:not(.eyebrow) { font-size: 1.06rem; margin: 22px 0 30px; }
.contact-links { border-top: 1px solid var(--line); }
.contact-links a { border-bottom: 1px solid var(--line); display: flex; flex-direction: column; padding: 17px 0; text-decoration: none; }
.contact-links span { color: var(--orange); font-size: .74rem; font-weight: 800; text-transform: uppercase; }
.quote-form { background: var(--white); border: 1px solid var(--line); border-radius: 6px; box-shadow: var(--shadow); display: grid; gap: 18px; grid-template-columns: repeat(2, minmax(0, 1fr)); padding: 30px; }
.form-row { display: grid; gap: 7px; }
.form-wide, .quote-form > button, .quote-form > small { grid-column: 1 / -1; }
.form-row label { font-size: .78rem; font-weight: 800; text-transform: uppercase; }
.form-row label span { color: var(--grey); font-size: .68rem; font-weight: 600; }
.form-row input, .form-row select, .form-row textarea { background: #fbfbf8; border: 1px solid #bfc2bb; border-radius: 4px; color: var(--ink); min-height: 48px; padding: 11px 12px; width: 100%; }
.form-row textarea { min-height: 110px; resize: vertical; }
.quote-form small { color: var(--grey); }
.quote-form > button:disabled { cursor: wait; opacity: .72; }
.form-trap { height: 0; left: -9999px; overflow: hidden; position: absolute; width: 0; }
.form-status { display: none; font-size: .84rem; grid-column: 1 / -1; margin: 0; }
.form-status:not(:empty) { display: block; }
.form-status.success { color: #166b3b; }
.form-status.warning { background: #fff6dd; border-left: 4px solid var(--yellow); color: #664b00; padding: 11px 13px; }
.form-status a { font-weight: 800; }

.site-footer { background: #0f1110; color: var(--white); padding: 56px 0 22px; }
.footer-grid { display: grid; gap: 60px; grid-template-columns: 1.5fr .75fr .75fr; }
.footer-grid > div { display: flex; flex-direction: column; gap: 9px; }
.footer-grid p { color: rgba(255,255,255,.58); margin-top: 8px; max-width: 430px; }
.footer-grid strong { color: var(--yellow); font-family: "Oswald", Impact, sans-serif; margin-bottom: 10px; text-transform: uppercase; }
.footer-grid a:not(.brand) { color: rgba(255,255,255,.7); font-size: .88rem; text-decoration: none; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.14); color: rgba(255,255,255,.48); display: flex; font-size: .78rem; justify-content: space-between; margin-top: 42px; padding-top: 20px; }
.floating-whatsapp { background: var(--green); border-radius: 4px; bottom: 18px; box-shadow: 0 10px 30px rgba(0,0,0,.24); color: var(--white); font-weight: 800; opacity: 0; padding: 13px 17px; pointer-events: none; position: fixed; right: 18px; text-decoration: none; transform: translateY(10px); transition: opacity .2s ease, transform .2s ease; z-index: 45; }
.floating-whatsapp.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }

@media (max-width: 980px) {
    h1 { font-size: 3.7rem; }
    h2 { font-size: 2.5rem; }
    .site-nav { background: var(--ink); border: 1px solid rgba(255,255,255,.14); border-radius: 6px; display: none; flex-direction: column; left: 28px; padding: 12px; position: absolute; right: 28px; top: 94px; }
    .site-nav.open { display: flex; }
    .site-nav a { text-align: center; width: 100%; }
    .menu-button { display: block; }
    .trust-grid { grid-template-columns: repeat(2, 1fr); }
    .trust-grid span:nth-child(2) { border-right: 0; }
    .trust-grid span:nth-child(-n+2) { border-bottom: 1px solid rgba(23,25,24,.2); }
    .section-heading { grid-template-columns: 1fr; gap: 22px; }
    .service-pathways { grid-template-columns: 150px 1fr 1fr; }
    .service-featured, .service-card { grid-column: span 6; }
    .company-band { grid-template-columns: 1fr; }
    .company-media { min-height: 460px; }
    .company-copy { max-width: none; padding: 68px 40px; }
    .delivery-layout, .contact-layout { gap: 48px; }
}

@media (max-width: 700px) {
    .container { padding-left: 18px; padding-right: 18px; }
    .section { padding: 68px 0; }
    h1 { font-size: 2.7rem; }
    h2 { font-size: 2.15rem; }
    .site-header { padding-top: 8px; }
    .nav-shell { min-height: 62px; padding: 7px 8px 7px 10px; }
    .brand { font-size: .92rem; }
    .brand img { height: 42px; width: 52px; }
    .site-nav { left: 18px; right: 18px; top: 78px; }
    .hero, .hero-content { min-height: 720px; }
    .hero-media { background-position: 62% center; }
    .hero-media::after { background: linear-gradient(90deg, rgba(16,18,17,.93), rgba(16,18,17,.52)), linear-gradient(0deg, rgba(16,18,17,.9), transparent); }
    .hero-content { padding-bottom: 30px; padding-top: 110px; }
    .hero-lead { font-size: 1rem; }
    .hero-actions { align-items: stretch; flex-direction: column; }
    .hero-actions .button { width: 100%; }
    .hero-facts { grid-template-columns: repeat(3, 1fr); margin-top: 36px; }
    .hero-facts div { padding-right: 12px; }
    .hero-facts div + div { padding-left: 12px; }
    .hero-facts strong { font-size: 1.5rem; }
    .trust-grid { grid-template-columns: 1fr; }
    .trust-grid span { border-bottom: 1px solid rgba(23,25,24,.2); border-right: 0; text-align: left; }
    .service-featured, .service-card { grid-column: span 12; }
    .service-featured img, .service-card img { aspect-ratio: 4 / 3; }
    .service-body p { min-height: auto; }
    .service-pathways { grid-template-columns: 1fr; }
    .service-pathways > span { padding: 16px 0 8px; }
    .service-pathways a { border-top: 1px solid var(--line); padding: 16px 0; }
    .service-pathways a + a { border-left: 0; }
    .company-media { min-height: 330px; }
    .company-copy { padding: 58px 18px; }
    .company-data div { grid-template-columns: 1fr; gap: 3px; }
    .project-gallery { display: grid; grid-template-columns: 1fr; grid-template-rows: repeat(3, 260px); }
    .project-gallery .project-wide { grid-row: span 1; }
    .delivery-layout, .credential-grid, .language-bar, .faq-layout, .contact-layout, .footer-grid { grid-template-columns: 1fr; }
    .delivery-layout, .language-bar, .faq-layout, .contact-layout { gap: 28px; }
    .language-section.section { padding: 42px 0; }
    .language-bar > p { border-left: 0; border-top: 1px solid rgba(23,25,24,.25); padding-left: 0; padding-top: 22px; }
    .language-section h2 { font-size: 1.85rem; }
    .language-cta { width: 100%; }
    .quote-form { grid-template-columns: 1fr; }
    .form-row, .quote-form > button, .quote-form > small, .form-status { grid-column: 1; }
    .credential-grid { gap: 12px; }
    .footer-bottom { align-items: flex-start; flex-direction: column; gap: 8px; }
    .floating-whatsapp { bottom: 12px; left: auto; padding: 11px 13px; right: 12px; text-align: center; }
    .site-footer { padding-bottom: 88px; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }