/* =========================================================
   HNR Solutions — site theme (built on Bootstrap 5.3)
   ========================================================= */

/* ---------- Fonts (Inter, SIL Open Font License) ---------- */
@font-face{font-family:"Inter";src:url("../fonts/Inter-Regular.otf") format("opentype");font-weight:400;font-display:swap}
@font-face{font-family:"Inter";src:url("../fonts/Inter-Medium.otf") format("opentype");font-weight:500;font-display:swap}
@font-face{font-family:"Inter";src:url("../fonts/Inter-SemiBold.otf") format("opentype");font-weight:600;font-display:swap}
@font-face{font-family:"Inter";src:url("../fonts/Inter-Bold.otf") format("opentype");font-weight:700;font-display:swap}
@font-face{font-family:"Inter Display";src:url("../fonts/InterDisplay-Bold.otf") format("opentype");font-weight:700;font-display:swap}
@font-face{font-family:"Inter Display";src:url("../fonts/InterDisplay-ExtraBold.otf") format("opentype");font-weight:800;font-display:swap}

/* ---------- Tokens ---------- */
:root{
  --hnr-orange:#ED7D31;
  --hnr-orange-600:#D8691E;
  --hnr-orange-050:#FDF1E8;
  --hnr-navy:#0F1B2D;
  --hnr-navy-800:#16263D;
  --hnr-navy-700:#1F3350;
  --hnr-ink:#1B2433;
  --hnr-muted:#5B6678;
  --hnr-line:#E4E8EF;
  --hnr-bg:#FFFFFF;
  --hnr-bg-soft:#F6F8FB;
  --hnr-teal:#2BB3A3;
  --hnr-radius:16px;
  --hnr-shadow:0 1px 2px rgba(15,27,45,.06),0 8px 24px rgba(15,27,45,.06);
  --hnr-shadow-lg:0 2px 4px rgba(15,27,45,.06),0 24px 48px rgba(15,27,45,.12);

  --bs-body-font-family:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --bs-body-color:var(--hnr-ink);
  --bs-body-bg:var(--hnr-bg);
  --bs-link-color:var(--hnr-orange-600);
  --bs-link-color-rgb:216,105,30;
  --bs-link-hover-color:var(--hnr-navy);
  --bs-primary:var(--hnr-orange);
  --bs-primary-rgb:237,125,49;
  --bs-border-color:var(--hnr-line);
}

html{scroll-behavior:smooth;scroll-padding-top:96px}
main,.site-footer{overflow-x:clip}
body{font-size:1.0625rem;line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
h1,h2,h3,.display-font{font-family:"Inter Display","Inter",system-ui,sans-serif;letter-spacing:-.02em;color:var(--hnr-navy)}
h1{font-weight:800}
h2{font-weight:700}
h3,h4,h5{font-weight:700;color:var(--hnr-navy)}
p{color:var(--hnr-ink)}
.text-muted-hnr{color:var(--hnr-muted)!important}
.lead{color:var(--hnr-muted);font-weight:400}
::selection{background:var(--hnr-orange);color:#fff}
a{text-underline-offset:3px}
:focus-visible{outline:3px solid var(--hnr-orange);outline-offset:3px;border-radius:6px}

.skip-link{position:absolute;left:-999px;top:8px;z-index:2000;background:var(--hnr-navy);color:#fff;padding:.5rem 1rem;border-radius:8px}
.skip-link:focus{left:8px}

/* ---------- Buttons ---------- */
.btn{font-weight:600;border-radius:999px;padding:.7rem 1.4rem;transition:transform .15s ease,box-shadow .15s ease,background-color .15s ease}
.btn-hnr{background:var(--hnr-orange);color:#fff;border:0;box-shadow:0 6px 18px rgba(237,125,49,.35)}
.btn-hnr:hover,.btn-hnr:focus{background:var(--hnr-orange-600);color:#fff;transform:translateY(-1px)}
.btn-ghost{border:1.5px solid rgba(255,255,255,.4);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;border-color:#fff}
.btn-outline-navy{border:1.5px solid var(--hnr-navy);color:var(--hnr-navy)}
.btn-outline-navy:hover{background:var(--hnr-navy);color:#fff}

/* ---------- Navbar ---------- */
.site-nav{background:rgba(255,255,255,.88);backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid transparent;transition:border-color .2s,box-shadow .2s;padding:.6rem 0}
.site-nav.scrolled{border-bottom-color:var(--hnr-line);box-shadow:0 4px 20px rgba(15,27,45,.06)}
.site-nav .navbar-brand img{height:52px;width:auto}
.site-nav .nav-link{color:var(--hnr-ink);font-weight:500;font-size:.98rem;padding:.5rem .9rem!important;border-radius:999px;position:relative}
.site-nav .nav-link:hover{color:var(--hnr-orange-600)}
.site-nav .nav-link.active{color:var(--hnr-navy);font-weight:600}
.site-nav .nav-link.active::after{content:"";position:absolute;left:.9rem;right:.9rem;bottom:.15rem;height:2px;background:var(--hnr-orange);border-radius:2px}
.site-nav .navbar-toggler{border:0;padding:.4rem}
.site-nav .navbar-toggler:focus{box-shadow:none}
@media (max-width:991.98px){
  .site-nav .navbar-collapse{padding:.75rem 0 1rem}
  .site-nav .nav-link.active::after{display:none}
  .site-nav .nav-link.active{background:var(--hnr-orange-050)}
}

/* ---------- Hero ---------- */
.hero{position:relative;background:radial-gradient(1200px 600px at 85% -10%,rgba(237,125,49,.22),transparent 60%),radial-gradient(900px 500px at -10% 110%,rgba(43,179,163,.16),transparent 60%),var(--hnr-navy);color:#fff;overflow:hidden;padding:7.5rem 0 6rem}
.hero h1,.hero h2{color:#fff}
.hero p,.hero .lead{color:rgba(255,255,255,.78)}
.hero .eyebrow{color:var(--hnr-orange)}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:48px 48px;mask-image:radial-gradient(ellipse at 70% 30%,#000 30%,transparent 75%);-webkit-mask-image:radial-gradient(ellipse at 70% 30%,#000 30%,transparent 75%);pointer-events:none}
.hero .container{position:relative}
.hero-title{font-size:clamp(2.3rem,5vw,4rem);line-height:1.05}
.hero-title .accent{color:var(--hnr-orange)}
.hero-art{width:100%;height:auto;filter:drop-shadow(0 30px 60px rgba(0,0,0,.35))}
.page-hero{padding:6.5rem 0 4rem}
.page-hero .hero-title{font-size:clamp(2rem,4vw,3.2rem)}
.breadcrumb-hnr{font-size:.875rem;margin-bottom:1rem}
.breadcrumb-hnr a{color:rgba(255,255,255,.7);text-decoration:none}
.breadcrumb-hnr a:hover{color:#fff}
.breadcrumb-hnr span{color:rgba(255,255,255,.45);margin:0 .4rem}
.hero-chips{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1.5rem}
.hero-chip{font-size:.82rem;font-weight:500;padding:.35rem .8rem;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:rgba(255,255,255,.88);text-decoration:none}
a.hero-chip:hover{background:rgba(237,125,49,.2);border-color:var(--hnr-orange);color:#fff}

/* ---------- Sections ---------- */
.section{padding:5.5rem 0}
.section-sm{padding:3.5rem 0}
.section-soft{background:var(--hnr-bg-soft)}
.section-navy{background:var(--hnr-navy);color:#fff}
.section-navy h2,.section-navy h3,.section-navy h4{color:#fff}
.section-navy p{color:rgba(255,255,255,.75)}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--hnr-orange-600);margin-bottom:.75rem}
.section-title{font-size:clamp(1.8rem,3.2vw,2.6rem);margin-bottom:1rem}
.section-intro{max-width:720px}

/* ---------- Cards ---------- */
.card-hnr{background:#fff;border:1px solid var(--hnr-line);border-radius:var(--hnr-radius);padding:1.75rem;height:100%;box-shadow:var(--hnr-shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s}
.card-hnr:hover{transform:translateY(-4px);box-shadow:var(--hnr-shadow-lg);border-color:rgba(237,125,49,.35)}
.card-hnr h3{font-size:1.2rem;margin:1rem 0 .5rem}
.card-hnr p{color:var(--hnr-muted);font-size:.98rem;margin-bottom:0}
.card-link{text-decoration:none;color:inherit;display:block;height:100%}
.card-link .more{display:inline-flex;align-items:center;gap:.35rem;margin-top:1rem;font-weight:600;color:var(--hnr-orange-600);font-size:.95rem}
.card-link:hover .more i{transform:translateX(4px)}
.card-link .more i{transition:transform .2s}
.icon-tile{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;font-size:1.45rem;background:var(--hnr-orange-050);color:var(--hnr-orange-600)}
.icon-tile.navy{background:#E8EDF5;color:var(--hnr-navy-700)}
.icon-tile.teal{background:#E3F6F3;color:#1E8C7F}
.section-navy .card-hnr{background:var(--hnr-navy-800);border-color:rgba(255,255,255,.08);box-shadow:none}
.section-navy .card-hnr h3{color:#fff}
.section-navy .card-hnr p{color:rgba(255,255,255,.7)}
.section-navy .icon-tile{background:rgba(237,125,49,.15);color:var(--hnr-orange)}

/* value pillars */
.pillar{border-left:3px solid var(--hnr-orange);padding:.25rem 0 .25rem 1.25rem}
.pillar h3{font-size:1.15rem;margin-bottom:.35rem}
.pillar p{color:var(--hnr-muted);margin:0;font-size:.98rem}

/* statement block */
.statement{border-radius:24px;padding:2.5rem;background:linear-gradient(135deg,var(--hnr-navy) 0%,var(--hnr-navy-700) 100%);color:#fff;height:100%;position:relative;overflow:hidden}
.statement::after{content:"";position:absolute;right:-60px;top:-60px;width:200px;height:200px;border-radius:50%;background:radial-gradient(circle,rgba(237,125,49,.35),transparent 70%)}
.statement h3{color:#fff;font-size:1.4rem}
.statement p{color:rgba(255,255,255,.8);margin:0}
.statement.light{background:#fff;color:var(--hnr-ink);border:1px solid var(--hnr-line)}
.statement.light h3{color:var(--hnr-navy)}
.statement.light p{color:var(--hnr-muted)}

/* process steps */
.steps{counter-reset:step;list-style:none;padding:0;margin:0}
.steps li{counter-increment:step;position:relative;padding:0 0 1.5rem 3.5rem}
.steps li::before{content:counter(step,decimal-leading-zero);position:absolute;left:0;top:-.1rem;width:2.4rem;height:2.4rem;border-radius:12px;display:grid;place-items:center;font-weight:700;font-size:.85rem;background:var(--hnr-navy);color:#fff}
.steps li::after{content:"";position:absolute;left:1.2rem;top:2.6rem;bottom:.3rem;width:2px;background:var(--hnr-line)}
.steps li:last-child::after{display:none}
.steps h4{font-size:1.05rem;margin:0 0 .25rem}
.steps p{color:var(--hnr-muted);margin:0;font-size:.97rem}

/* horizontal phase strip */
.phases{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:1rem}
.phase{background:#fff;border:1px solid var(--hnr-line);border-radius:14px;padding:1.1rem 1.2rem;position:relative}
.phase .n{font-size:.75rem;font-weight:700;letter-spacing:.12em;color:var(--hnr-orange-600);text-transform:uppercase}
.phase h4{font-size:1rem;margin:.3rem 0 .3rem}
.phase p{font-size:.9rem;color:var(--hnr-muted);margin:0}

/* checklist */
.checklist{list-style:none;padding:0;margin:0}
.checklist li{position:relative;padding-left:1.9rem;margin-bottom:.65rem;color:var(--hnr-ink)}
.checklist li::before{content:"\F26E";font-family:"bootstrap-icons";position:absolute;left:0;top:.05rem;color:var(--hnr-orange);font-size:1.15rem;line-height:1.5}
.section-navy .checklist li{color:rgba(255,255,255,.85)}

/* tags */
.tag{display:inline-block;font-size:.78rem;font-weight:600;padding:.3rem .7rem;border-radius:999px;background:#EEF2F7;color:var(--hnr-navy-700);margin:0 .35rem .45rem 0}
.tag.orange{background:var(--hnr-orange-050);color:var(--hnr-orange-600)}

/* detail sections (expertise / services) */
.detail{padding:5rem 0;border-bottom:1px solid var(--hnr-line)}
.detail:nth-of-type(even){background:var(--hnr-bg-soft)}
.detail-head{display:flex;gap:1.1rem;align-items:flex-start;margin-bottom:1.5rem}
.detail-head .icon-tile{flex:0 0 auto;width:60px;height:60px;font-size:1.7rem}
.detail h2{font-size:clamp(1.6rem,2.8vw,2.2rem);margin:0}
.detail .sub{color:var(--hnr-muted);margin:.35rem 0 0}
.mini{background:#fff;border:1px solid var(--hnr-line);border-radius:14px;padding:1.25rem 1.3rem;height:100%}
.mini h4{font-size:1rem;margin:0 0 .35rem;display:flex;gap:.5rem;align-items:center}
.mini h4 i{color:var(--hnr-orange)}
.mini p{font-size:.94rem;color:var(--hnr-muted);margin:0}
.example{border-radius:14px;padding:1.25rem 1.4rem;background:var(--hnr-orange-050);border:1px solid rgba(237,125,49,.25)}
.example .label{font-size:.75rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--hnr-orange-600)}
.example p{margin:.35rem 0 0;font-size:.97rem}
.side-art{border-radius:20px;overflow:hidden;box-shadow:var(--hnr-shadow-lg);background:var(--hnr-navy)}
.side-art img{display:block;width:100%;height:auto}

/* sticky in-page nav */
.subnav{position:sticky;top:68px;z-index:900;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--hnr-line)}
.subnav .inner{display:flex;gap:.25rem;overflow-x:auto;scrollbar-width:none;padding:.6rem 0}
.subnav .inner::-webkit-scrollbar{display:none}
.subnav a{white-space:nowrap;font-size:.9rem;font-weight:500;color:var(--hnr-muted);text-decoration:none;padding:.4rem .85rem;border-radius:999px}
.subnav a:hover{color:var(--hnr-navy);background:var(--hnr-bg-soft)}
.subnav a.active{color:#fff;background:var(--hnr-navy)}

/* case study + white paper cards */
.media-card{display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--hnr-line);border-radius:var(--hnr-radius);overflow:hidden;box-shadow:var(--hnr-shadow);text-decoration:none;color:inherit;transition:transform .2s,box-shadow .2s}
.media-card:hover{transform:translateY(-4px);box-shadow:var(--hnr-shadow-lg);color:inherit}
.media-card .cover{aspect-ratio:16/9;background:var(--hnr-navy);overflow:hidden}
.media-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.media-card:hover .cover img{transform:scale(1.04)}
.media-card .body{padding:1.5rem;display:flex;flex-direction:column;flex:1}
.media-card h3{font-size:1.18rem;margin:.6rem 0 .5rem;line-height:1.3}
.media-card p{color:var(--hnr-muted);font-size:.95rem}
.media-card .more{margin-top:auto;font-weight:600;color:var(--hnr-orange-600);font-size:.93rem}
.filter-bar{display:flex;flex-wrap:wrap;gap:.5rem}
.filter-bar button{border:1px solid var(--hnr-line);background:#fff;border-radius:999px;padding:.45rem 1rem;font-size:.9rem;font-weight:500;color:var(--hnr-ink)}
.filter-bar button:hover{border-color:var(--hnr-orange)}
.filter-bar button.active{background:var(--hnr-navy);border-color:var(--hnr-navy);color:#fff}

/* article layout (case study / white paper) */
.article-cover{border-radius:20px;overflow:hidden;box-shadow:var(--hnr-shadow-lg);margin-top:-3rem;position:relative;z-index:2;background:var(--hnr-navy)}
.article-cover img{display:block;width:100%;height:auto}
.article{font-size:1.06rem}
.article h2{font-size:1.65rem;margin:2.75rem 0 1rem;display:flex;align-items:center;gap:.75rem}
.article h2 .num{display:inline-grid;place-items:center;width:2.2rem;height:2.2rem;border-radius:10px;background:var(--hnr-orange);color:#fff;font-size:.95rem;font-weight:700;flex:0 0 auto}
.article h3{font-size:1.2rem;margin:1.75rem 0 .6rem}
.article p,.article li{color:#2B3546}
.article ul:not(.checklist){padding-left:1.25rem}
.article ul li{margin-bottom:.4rem}
.facts{background:var(--hnr-bg-soft);border:1px solid var(--hnr-line);border-radius:16px;padding:1.5rem;position:sticky;top:100px}
.facts dt{font-size:.75rem;letter-spacing:.12em;text-transform:uppercase;color:var(--hnr-muted);font-weight:700}
.facts dd{margin:0 0 1rem;font-weight:500}
.facts dd:last-child{margin-bottom:0}
.callout{border-left:4px solid var(--hnr-orange);background:var(--hnr-orange-050);padding:1.1rem 1.3rem;border-radius:0 12px 12px 0;margin:1.5rem 0}
.callout p{margin:0}
.result-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem;margin:1.25rem 0}
.result{border:1px solid var(--hnr-line);border-radius:14px;padding:1.2rem;background:#fff}
.result i{font-size:1.4rem;color:var(--hnr-orange)}
.result h4{font-size:1rem;margin:.5rem 0 .25rem}
.result p{font-size:.93rem;color:var(--hnr-muted);margin:0}
.paper-meta{display:flex;flex-wrap:wrap;gap:1.25rem;color:rgba(255,255,255,.7);font-size:.9rem;margin-top:1.25rem}
.paper-meta i{color:var(--hnr-orange);margin-right:.35rem}
.toc a{display:block;color:var(--hnr-muted);text-decoration:none;padding:.3rem 0;font-weight:500}
.toc a:hover{color:var(--hnr-orange-600)}
.table-hnr{font-size:.95rem}
.table-hnr th{background:var(--hnr-navy);color:#fff;font-weight:600;border:0}
.table-hnr td{vertical-align:top}
.disclaimer{font-size:.85rem;color:var(--hnr-muted);border-top:1px solid var(--hnr-line);padding-top:1rem;margin-top:2.5rem}

/* CTA band */
.cta-band{border-radius:28px;padding:3.5rem;background:radial-gradient(600px 300px at 100% 0%,rgba(237,125,49,.35),transparent 60%),var(--hnr-navy);color:#fff;position:relative;overflow:hidden}
.cta-band h2{color:#fff}
.cta-band p{color:rgba(255,255,255,.78)}

/* forms */
.form-control,.form-select{border-radius:12px;padding:.75rem 1rem;border-color:var(--hnr-line)}
.form-control:focus,.form-select:focus{border-color:var(--hnr-orange);box-shadow:0 0 0 .2rem rgba(237,125,49,.18)}
.form-label{font-weight:600;font-size:.92rem}

/* footer */
.site-footer{background:#0A1322;color:rgba(255,255,255,.7);padding:4.5rem 0 2rem;font-size:.95rem}
.site-footer h5{color:#fff;font-size:.85rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:1rem}
.site-footer a{color:rgba(255,255,255,.7);text-decoration:none}
.site-footer a:hover{color:var(--hnr-orange)}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:.5rem}
.footer-logo{height:46px;width:auto;margin-bottom:1rem}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);margin-top:3rem;padding-top:1.5rem;font-size:.85rem;color:rgba(255,255,255,.5)}

/* back to top */
.to-top{position:fixed;right:20px;bottom:20px;width:46px;height:46px;border-radius:50%;border:0;background:var(--hnr-orange);color:#fff;box-shadow:0 8px 20px rgba(237,125,49,.4);opacity:0;visibility:hidden;transform:translateY(10px);transition:all .25s;z-index:1000}
.to-top.show{opacity:1;visibility:visible;transform:none}

/* reveal animation */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .card-hnr,.media-card,.btn,.media-card .cover img{transition:none}
}
.no-js .reveal{opacity:1;transform:none}

/* print (white papers / case studies -> "Save as PDF") */
@media print{
  @page{margin:0}  /* hides the browser's own print date/URL header & footer */
  body{padding:14mm 14mm}
  .site-nav,.site-footer,.subnav,.to-top,.cta-band,.no-print,.filter-bar{display:none!important}
  .hero{background:#fff!important;color:#000;padding:1rem 0!important}
  .hero h1,.hero p,.hero .lead,.paper-meta{color:#000!important}
  .hero-grid{display:none}
  .article-cover{margin-top:0;box-shadow:none}
  .facts{position:static}
  .reveal{opacity:1!important;transform:none!important}
  a{color:#000;text-decoration:none}
  .section{padding:1rem 0}
}
.site-footer p{color:rgba(255,255,255,.7)}