/* =========================================================
   ONTERRA NIGERIA LIMITED, styles
   ========================================================= */
:root{
  --ink:#070b12;
  --ink-2:#0b1421;
  --ink-3:#0f1c2e;
  --petrol:#0e3a4f;
  --petrol-2:#14546f;
  --teal:#1fa3b8;
  --amber:#f2a900;
  --amber-2:#ffc24d;
  --paper:#f4f1ea;
  --text:#e9eef4;
  --muted:#93a6b8;
  --line:rgba(255,255,255,.10);
  --card:rgba(255,255,255,.035);
  --maxw:1200px;
  --r:16px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:'Inter',system-ui,sans-serif;
  --display:'Sora','Inter',sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  font-family:var(--font);
  background:var(--ink);
  color:var(--text);
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{width:min(var(--maxw),92%);margin-inline:auto}

h1,h2,h3,h4,h5{font-family:var(--display);font-weight:700;line-height:1.08;letter-spacing:-.02em}
h2{font-size:clamp(1.9rem,4.4vw,3.2rem)}
h3{font-size:1.3rem}
.kicker{
  font-family:var(--display);
  text-transform:uppercase;letter-spacing:.22em;font-size:.74rem;font-weight:600;
  color:var(--amber);margin-bottom:1rem;
}
.section{padding:clamp(4.5rem,9vw,8rem) 0;position:relative}
.section__head{max-width:780px;margin-bottom:3.2rem}
.section__lead{color:var(--muted);font-size:1.08rem;margin-top:1rem}

/* ---------- Buttons ---------- */
.btn{
  --bg:transparent;
  display:inline-flex;align-items:center;gap:.55rem;
  font-family:var(--display);font-weight:600;font-size:.95rem;
  padding:.95rem 1.6rem;border-radius:100px;border:1px solid transparent;
  cursor:pointer;transition:transform .3s var(--ease),background .3s,box-shadow .3s,color .3s;
  white-space:nowrap;
}
.btn--sm{padding:.6rem 1.1rem;font-size:.85rem}
.btn--primary{background:var(--amber);color:#1a1100;box-shadow:0 10px 30px -10px rgba(242,169,0,.6)}
.btn--primary:hover{transform:translateY(-3px);background:var(--amber-2);box-shadow:0 16px 40px -12px rgba(242,169,0,.7)}
.btn--ghost{border-color:var(--line);color:var(--text)}
.btn--ghost:hover{border-color:var(--amber);color:var(--amber);transform:translateY(-3px)}
.btn--full{width:100%;justify-content:center}

/* ---------- Preloader ---------- */
.preloader{position:fixed;inset:0;z-index:2000;background:var(--ink);display:grid;place-items:center;transition:opacity .6s ease,visibility .6s}
.preloader.is-done{opacity:0;visibility:hidden}
.preloader__inner{text-align:center}
.preloader__mark svg{animation:float 2.4s ease-in-out infinite}
.preloader__name{font-family:var(--display);font-weight:800;letter-spacing:.4em;font-size:1.1rem;margin:1.2rem 0 1rem;color:var(--text)}
.preloader__bar{width:180px;height:3px;background:var(--line);border-radius:3px;overflow:hidden;margin-inline:auto}
.preloader__bar span{display:block;height:100%;width:0;background:var(--amber);border-radius:3px}
@keyframes float{50%{transform:translateY(-8px)}}

/* ---------- Header ---------- */
.header{position:fixed;top:0;left:0;right:0;z-index:1000;transition:background .4s,backdrop-filter .4s,border-color .4s;border-bottom:1px solid transparent}
.header.is-scrolled{background:rgba(7,11,18,.82);backdrop-filter:blur(14px);border-color:var(--line)}
.header__inner{display:flex;align-items:center;gap:1.5rem;height:74px}
.brand{display:flex;align-items:center;gap:.7rem;margin-right:auto}
.brand__mark{flex:none}
.brand__text{font-family:var(--display);font-weight:800;letter-spacing:.16em;font-size:1.05rem;display:flex;flex-direction:column;line-height:1}
.brand__text small{font-size:.58rem;font-weight:500;letter-spacing:.22em;color:var(--muted);margin-top:3px}
.brand__text--lg{font-size:1.4rem}
.nav{display:flex;gap:1.7rem}
.nav__link{font-size:.92rem;color:var(--muted);font-weight:500;position:relative;transition:color .3s}
.nav__link::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--amber);transition:width .3s var(--ease)}
.nav__link:hover{color:var(--text)}
.nav__link:hover::after{width:100%}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.burger span{width:26px;height:2px;background:var(--text);transition:.3s}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;overflow:hidden;background:radial-gradient(120% 100% at 70% 10%,#0f2536 0%,var(--ink) 60%)}
.hero__canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.hero__veil{position:absolute;inset:0;background:linear-gradient(90deg,var(--ink) 0%,rgba(7,11,18,.55) 45%,rgba(7,11,18,.15) 100%);pointer-events:none}
.hero__inner{position:relative;z-index:2;padding-top:90px;max-width:880px}
.hero__eyebrow{font-family:var(--display);text-transform:uppercase;letter-spacing:.28em;font-size:.78rem;color:var(--amber);font-weight:600;margin-bottom:1.4rem}
.hero__title{font-size:clamp(2.8rem,8.5vw,6rem);font-weight:800;letter-spacing:-.03em;line-height:.98}
.hero__title .line{display:block;overflow:hidden}
.hero__title .line>span{display:block;transform:translateY(110%)}
.hero__title em{font-style:normal;color:var(--amber)}
.hero__sub{max-width:620px;margin:1.8rem 0 2.4rem;color:#cdd8e2;font-size:clamp(1rem,1.6vw,1.18rem)}
.hero__sub strong{color:#fff;font-weight:600}
.hero__actions{display:flex;gap:1rem;flex-wrap:wrap}
.hero__scroll{display:flex;align-items:center;gap:.7rem;margin-top:3.4rem;color:var(--muted);font-size:.82rem;letter-spacing:.05em}
.hero__scroll-line{width:46px;height:1px;background:var(--muted);position:relative;overflow:hidden}
.hero__scroll-line::after{content:"";position:absolute;inset:0;background:var(--amber);transform:translateX(-100%);animation:scrollLine 2s var(--ease) infinite}
@keyframes scrollLine{50%{transform:translateX(0)}100%{transform:translateX(100%)}}

/* ---------- Marquee ---------- */
.marquee{background:var(--amber);color:#1a1100;overflow:hidden;padding:.85rem 0;border-block:1px solid #00000022}
.marquee__track{display:flex;gap:1.4rem;white-space:nowrap;width:max-content;animation:marquee 38s linear infinite;font-family:var(--display);font-weight:700;text-transform:uppercase;letter-spacing:.06em;font-size:.92rem}
.marquee__track span{opacity:.9}
@keyframes marquee{to{transform:translateX(-50%)}}

/* ---------- Image placeholders ---------- */
.ph{position:relative;border-radius:var(--r);overflow:hidden;background:linear-gradient(135deg,var(--petrol) 0%,var(--ink-3) 60%,#08111c 100%);min-height:340px;aspect-ratio:4/3}
.ph--tall{aspect-ratio:3/4;min-height:460px}
.ph img{width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .8s ease;mix-blend-mode:luminosity;filter:contrast(1.05) saturate(.85)}
.ph.is-loaded img{opacity:.92;mix-blend-mode:normal}
.ph::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(7,11,18,.55));pointer-events:none}

/* ---------- About ---------- */
.about__grid{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(2rem,5vw,4.5rem);align-items:center}
.about__media{position:relative}
.about__badge{position:absolute;bottom:-26px;right:-12px;background:var(--ink-2);border:1px solid var(--line);border-radius:14px;padding:1.1rem 1.3rem;max-width:240px;box-shadow:0 20px 50px -20px #000}
.about__badge strong{display:block;font-family:var(--display);color:var(--amber);margin-bottom:.2rem}
.about__badge span{font-size:.85rem;color:var(--muted)}
.about__body p{color:var(--muted);margin-top:1rem}
.about__body p strong{color:var(--text)}
.ticklist{list-style:none;margin-top:1.8rem;display:grid;gap:.8rem}
.ticklist li{position:relative;padding-left:2rem;color:var(--text)}
.ticklist li::before{content:"";position:absolute;left:0;top:.45em;width:14px;height:8px;border-left:2px solid var(--amber);border-bottom:2px solid var(--amber);transform:rotate(-45deg)}

/* ---------- Stats ---------- */
.stats{border-block:1px solid var(--line);background:linear-gradient(180deg,var(--ink-2),var(--ink))}
.stats__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;padding:clamp(2.5rem,5vw,3.5rem) 0}
.stat{text-align:left}
.stat__num{font-family:var(--display);font-weight:800;font-size:clamp(2.4rem,5vw,3.6rem);color:#fff;line-height:1;display:flex;align-items:baseline}
.stat__num i{font-style:normal;color:var(--amber);font-size:.55em;margin-left:2px}
.stat__label{color:var(--muted);margin-top:.6rem;font-size:.92rem;max-width:230px}

/* ---------- Services cards ---------- */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem}
.card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:2rem 1.6rem 1.8rem;overflow:hidden;transition:transform .4s var(--ease),border-color .4s,background .4s}
.card::before{content:"";position:absolute;left:0;top:0;height:3px;width:0;background:var(--amber);transition:width .5s var(--ease)}
.card:hover{transform:translateY(-6px);border-color:rgba(242,169,0,.35);background:rgba(242,169,0,.04)}
.card:hover::before{width:100%}
.card__no{font-family:var(--display);font-size:.8rem;font-weight:700;color:var(--amber);letter-spacing:.1em}
.card h3{margin:.8rem 0 .6rem;font-size:1.18rem}
.card p{color:var(--muted);font-size:.93rem}

/* ---------- Process timeline ---------- */
.timeline{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:2.4rem 2rem;position:relative;counter-reset:t}
.timeline__item{position:relative;padding-top:2rem;border-top:1px solid var(--line)}
.timeline__dot{position:absolute;top:-7px;left:0;width:13px;height:13px;border-radius:50%;background:var(--ink);border:2px solid var(--amber)}
.timeline__num{font-family:var(--display);font-weight:800;color:rgba(255,255,255,.10);font-size:2.6rem;line-height:1;margin-bottom:.3rem}
.timeline__item h3{margin-bottom:.5rem}
.timeline__item p{color:var(--muted);font-size:.93rem}

/* ---------- Capabilities ---------- */
.cap__grid{display:grid;grid-template-columns:1.3fr .9fr;gap:clamp(2rem,5vw,4rem);align-items:center}
.cap__body>p{color:var(--muted);margin-top:1rem}
.cap__list{display:grid;grid-template-columns:1fr 1fr;gap:1.6rem;margin-top:2.4rem}
.cap__item h4{font-family:var(--display);font-size:1.02rem;margin-bottom:.4rem}
.cap__item h4::before{content:"›";color:var(--amber);margin-right:.5rem;font-weight:700}
.cap__item p{color:var(--muted);font-size:.9rem}

/* ---------- CTA band ---------- */
.ctaband{background:linear-gradient(120deg,var(--petrol) 0%,var(--ink-3) 70%);border-block:1px solid var(--line);position:relative;overflow:hidden}
.ctaband::before{content:"";position:absolute;right:-60px;top:-60px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(242,169,0,.22),transparent 70%)}
.ctaband__inner{text-align:center;max-width:720px;margin-inline:auto;padding:clamp(3.5rem,7vw,5.5rem) 0;position:relative}
.ctaband p{color:#cdd8e2;margin:1rem 0 2rem}

/* ---------- Blog ---------- */
.insights__updated{display:block;font-size:.85rem;color:var(--amber);margin-top:.6rem;font-style:italic}
.blog{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.blog__loading{grid-column:1/-1;color:var(--muted);padding:2rem 0}
.post{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;cursor:pointer;transition:transform .4s var(--ease),border-color .4s}
.post:hover{transform:translateY(-6px);border-color:rgba(242,169,0,.35)}
.post--feature{grid-column:span 2;flex-direction:row}
.post__media{position:relative;overflow:hidden;background:linear-gradient(135deg,var(--petrol),var(--ink-3));aspect-ratio:16/10;flex:none}
.post--feature .post__media{width:48%;aspect-ratio:auto}
.post__media img{width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .7s,transform .6s var(--ease)}
.post__media.is-loaded img{opacity:1}
.post:hover .post__media img{transform:scale(1.06)}
.post__tag{position:absolute;top:12px;left:12px;background:var(--amber);color:#1a1100;font-family:var(--display);font-weight:700;font-size:.68rem;text-transform:uppercase;letter-spacing:.08em;padding:.3rem .7rem;border-radius:100px}
.post__body{padding:1.4rem 1.4rem 1.6rem;display:flex;flex-direction:column;gap:.5rem;flex:1}
.post__meta{font-size:.78rem;color:var(--muted);letter-spacing:.04em;text-transform:uppercase}
.post__title{font-family:var(--display);font-size:1.12rem;font-weight:700;line-height:1.25}
.post--feature .post__title{font-size:1.5rem}
.post__excerpt{color:var(--muted);font-size:.92rem}
.post__more{margin-top:auto;color:var(--amber);font-weight:600;font-size:.88rem;font-family:var(--display)}

/* ---------- Reader overlay ---------- */
.reader{position:fixed;inset:0;z-index:1500;background:rgba(3,6,11,.7);backdrop-filter:blur(6px);opacity:0;visibility:hidden;transition:opacity .4s;display:flex;justify-content:flex-end}
.reader.is-open{opacity:1;visibility:visible}
.reader__panel{width:min(720px,100%);height:100%;background:var(--ink-2);border-left:1px solid var(--line);overflow-y:auto;transform:translateX(40px);transition:transform .45s var(--ease);position:relative}
.reader.is-open .reader__panel{transform:none}
.reader__close{position:sticky;top:0;float:right;margin:1rem 1rem 0;width:42px;height:42px;border-radius:50%;border:1px solid var(--line);background:rgba(0,0,0,.4);color:#fff;font-size:1.5rem;cursor:pointer;z-index:5;transition:background .3s,transform .3s}
.reader__close:hover{background:var(--amber);color:#1a1100;transform:rotate(90deg)}
.reader__content{padding:1rem clamp(1.5rem,4vw,3rem) 4rem}
.reader__hero{margin:-1rem clamp(-1.5rem,-4vw,-3rem) 2rem;aspect-ratio:16/8;background:linear-gradient(135deg,var(--petrol),var(--ink-3));overflow:hidden}
.reader__hero img{width:100%;height:100%;object-fit:cover}
.reader__content h1{font-size:clamp(1.7rem,4vw,2.4rem);margin:1rem 0}
.reader__content .post__meta{margin-bottom:.5rem}
.reader__content p{color:#cdd8e2;margin:1rem 0}
.reader__content h2{font-size:1.4rem;margin:2rem 0 .6rem}
.reader__content ul{margin:1rem 0 1rem 1.2rem;color:#cdd8e2;display:grid;gap:.4rem}

/* ---------- Contact ---------- */
.contact__grid{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(2rem,5vw,4rem);align-items:start}
.contact__list{list-style:none;margin-top:2rem;display:grid;gap:1.4rem}
.contact__list li{display:flex;gap:1rem;align-items:flex-start}
.contact__ic{font-size:1.3rem;flex:none;line-height:1.4}
.contact__list strong{display:block;font-family:var(--display);font-size:.78rem;text-transform:uppercase;letter-spacing:.14em;color:var(--amber);margin-bottom:.2rem}
.contact__list a:hover{color:var(--amber)}
.contact__form{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:clamp(1.5rem,3vw,2.2rem)}
.contact__formnote{color:var(--muted);font-size:.9rem;margin-bottom:1.4rem}
.field{margin-bottom:1.1rem}
.field label{display:block;font-size:.82rem;color:var(--muted);margin-bottom:.4rem;font-weight:500}
.field input,.field select,.field textarea{width:100%;background:rgba(0,0,0,.25);border:1px solid var(--line);border-radius:10px;padding:.85rem 1rem;color:var(--text);font-family:var(--font);font-size:.95rem;transition:border-color .3s,background .3s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--amber);background:rgba(0,0,0,.4)}
.field textarea{resize:vertical}

/* ---------- Footer ---------- */
.footer{background:var(--ink-2);border-top:1px solid var(--line);padding-top:4rem}
.footer__inner{display:grid;grid-template-columns:1.4fr 2fr;gap:3rem;padding-bottom:3rem}
.footer__brand p{color:var(--muted);margin-top:1rem;max-width:340px;font-size:.92rem}
.footer__cols{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}
.footer__col h5{font-family:var(--display);text-transform:uppercase;letter-spacing:.14em;font-size:.74rem;color:var(--amber);margin-bottom:1rem}
.footer__col a,.footer__col span{display:block;color:var(--muted);font-size:.9rem;margin-bottom:.6rem;transition:color .3s}
.footer__col a:hover{color:var(--text)}
.footer__bottom{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding:1.6rem 0;border-top:1px solid var(--line);color:var(--muted);font-size:.84rem}

/* ---------- Floating action ---------- */
.fab{position:fixed;right:22px;bottom:22px;z-index:900;width:56px;height:56px;border-radius:50%;background:#25d366;color:#fff;display:grid;place-items:center;box-shadow:0 12px 30px -8px rgba(37,211,102,.7);transition:transform .3s var(--ease)}
.fab:hover{transform:scale(1.1) translateY(-2px)}
.fab::after{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid #25d366;animation:pulse 2.4s ease-out infinite}
@keyframes pulse{0%{transform:scale(1);opacity:.7}100%{transform:scale(1.7);opacity:0}}

/* ---------- Reveal animation base ---------- */
.reveal-up{opacity:0;transform:translateY(34px)}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .nav{position:fixed;inset:74px 0 auto 0;flex-direction:column;background:rgba(7,11,18,.97);backdrop-filter:blur(14px);padding:2rem 6%;gap:1.4rem;border-bottom:1px solid var(--line);transform:translateY(-130%);transition:transform .45s var(--ease);height:auto}
  .nav.is-open{transform:none}
  .nav__link{font-size:1.1rem}
  .burger{display:flex}
  .header__cta{display:none}
  .about__grid,.cap__grid,.contact__grid{grid-template-columns:1fr}
  .cap__media{order:-1}
  .stats__grid{grid-template-columns:1fr 1fr;gap:2rem 1rem}
  .cards{grid-template-columns:1fr 1fr}
  .timeline{grid-template-columns:1fr 1fr}
  .blog{grid-template-columns:1fr 1fr}
  .post--feature{grid-column:span 2}
  .footer__inner{grid-template-columns:1fr}
}
@media (max-width:620px){
  .cards{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr}
  .blog{grid-template-columns:1fr}
  .post--feature{grid-column:auto;flex-direction:column}
  .post--feature .post__media{width:100%;aspect-ratio:16/10}
  .cap__list{grid-template-columns:1fr}
  .stats__grid{grid-template-columns:1fr 1fr}
  .about__badge{position:static;margin-top:1.2rem;max-width:none}
  .footer__cols{grid-template-columns:1fr 1fr}
  .footer__bottom{flex-direction:column}
}