/* ============================================================
   Fluxoniks — GHG & Sustainability Consulting — styles.css
   ============================================================ */
:root{
  --green-deep:#0B3D2E;--green:#15803D;--green-bright:#22C55E;
  --teal:#0D9488;--teal-deep:#0A6B66;
  --bg:#ffffff;--bg-alt:#F4F7F5;--bg-mute:#FAFBFA;
  --text:#10201A;--muted:#5B6B66;--muted-2:#76847E;
  --border:#E4EAE7;--border-strong:#CFDAD5;
  --shadow-sm:0 1px 2px rgba(11,61,46,.05);
  --shadow:0 6px 24px rgba(11,61,46,.07);
  --shadow-lg:0 24px 60px rgba(11,61,46,.14);
  --radius:18px;--radius-sm:12px;--radius-xs:8px;
  --maxw:1180px;--header-h:72px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --green-grad:linear-gradient(135deg,#0B3D2E 0%,#0A6B66 100%);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 18px);-webkit-text-size-adjust:100%}
body{margin:0;font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.65;font-size:1.02rem;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
h1,h2,h3,h4{line-height:1.12;letter-spacing:-.022em;color:var(--text);font-weight:700;margin:0 0 .6em}
h1{font-size:clamp(2.3rem,4.8vw,3.7rem);font-weight:800;letter-spacing:-.03em}
h2{font-size:clamp(1.7rem,3.3vw,2.5rem);letter-spacing:-.025em}
h3{font-size:clamp(1.2rem,2vw,1.4rem)}
h4{font-size:1.1rem}
p{margin:0 0 1.1rem}
a{color:var(--green-deep);text-decoration:none}
img,svg{max-width:100%;display:block}
ul{margin:0;padding:0;list-style:none}
strong{font-weight:600}
::selection{background:rgba(13,148,136,.22)}

/* Layout */
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:clamp(56px,9vw,110px) 0}
.section--alt{background:var(--bg-alt)}
.section--dark{background:var(--green-deep);color:#D7E6DF}
.section--dark h1,.section--dark h2,.section--dark h3{color:#fff}
.section-head{max-width:680px;margin:0 0 48px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--teal);margin:0 0 14px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--teal);border-radius:2px}
.section-lead{font-size:1.1rem;color:var(--muted);max-width:60ch}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55rem;font-weight:600;font-size:.97rem;padding:.8rem 1.4rem;border-radius:999px;border:1.5px solid transparent;cursor:pointer;transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);text-decoration:none;white-space:nowrap}
.btn-primary{background:var(--green-deep);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(11,61,46,.22)}
.btn-secondary{background:#fff;color:var(--green-deep);border-color:var(--border-strong)}
.btn-secondary:hover{border-color:var(--green);color:var(--green);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-lg{padding:1rem 1.7rem;font-size:1.05rem}

/* Badge + Grid */
.badge{display:inline-flex;align-items:center;gap:7px;font-size:.78rem;font-weight:600;letter-spacing:.02em;padding:.32rem .7rem;border-radius:999px;background:var(--bg-alt);color:var(--green-deep);border:1px solid var(--border)}
.badge--teal{background:rgba(13,148,136,.1);color:var(--teal-deep);border-color:rgba(13,148,136,.2)}
.grid{display:grid;gap:24px}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}
/* Header / Nav */
.header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.86);backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--border);transition:box-shadow .3s var(--ease)}
.header.scrolled{box-shadow:var(--shadow-sm)}
.header__inner{height:var(--header-h);display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.02em;color:var(--green-deep);font-size:1.18rem}
.brand__mark{width:34px;height:34px;border-radius:9px;background:var(--green-grad);display:grid;place-items:center;color:#fff;box-shadow:var(--shadow-sm);flex:none}
.brand__mark svg{width:20px;height:20px}
.brand__sub{color:var(--muted-2);font-weight:500;font-size:.72rem;letter-spacing:.04em;text-transform:uppercase;display:block;line-height:1;margin-top:3px}
.nav{display:flex;align-items:center;gap:30px}
.nav__links{display:flex;align-items:center;gap:6px}
.nav__links a{color:var(--text);font-weight:500;font-size:.95rem;padding:.5rem .8rem;border-radius:999px;transition:color .2s,background .2s}
.nav__links a:hover{color:var(--green-deep);background:var(--bg-alt)}
.nav__cta{display:flex;gap:10px;align-items:center}
.nav__toggle{display:none;background:none;border:0;cursor:pointer;width:42px;height:42px;border-radius:10px;color:var(--green-deep)}
.nav__toggle:hover{background:var(--bg-alt)}
@media(max-width:860px){
  .nav__links{position:fixed;inset:var(--header-h) 0 auto 0;background:#fff;border-bottom:1px solid var(--border);flex-direction:column;align-items:stretch;padding:14px 24px 24px;gap:4px;transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .2s,transform .2s}
  .nav__links.open{transform:none;opacity:1;pointer-events:auto}
  .nav__links a{padding:.9rem .6rem;font-size:1.05rem}
  .nav__toggle{display:grid;place-items:center}
}

/* Hero */
.hero{position:relative;overflow:hidden;background:var(--green-grad);color:#EAF5EF}
.hero__bg{position:absolute;inset:0;background:radial-gradient(60% 50% at 82% -5%,rgba(34,197,94,.34),transparent 60%),radial-gradient(55% 45% at -5% 105%,rgba(13,148,136,.4),transparent 60%)}
.hero__inner{position:relative;padding:clamp(64px,11vw,140px) 0 clamp(52px,8vw,104px)}
.hero .eyebrow{color:#9BE7C9}
.hero .eyebrow::before{background:#9BE7C9}
.hero h1{color:#fff;max-width:18ch}
.hero__lead{font-size:clamp(1.05rem,2vw,1.25rem);color:#CDEBDD;max-width:58ch;margin-bottom:30px}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:46px}
.hero__cta .btn-secondary{color:#fff}
.hero__stats{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;max-width:700px;border-top:1px solid rgba(255,255,255,.16);padding-top:34px}
.stat__num{font-size:clamp(1.6rem,3vw,2.3rem);font-weight:800;color:#fff;line-height:1}
.stat__lbl{color:#AEDFC8;font-size:.9rem;margin-top:7px}

/* Card */
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm);transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--border-strong)}
.card__icon{width:46px;height:46px;border-radius:12px;background:var(--bg-alt);display:grid;place-items:center;color:var(--green-deep);margin-bottom:18px}
.card__icon svg{width:24px;height:24px}
/* Phases */
.phase-card{position:relative;overflow:hidden}
.phase-card .card__icon{background:var(--green-grad);color:#fff}
.phase__num{position:absolute;top:22px;right:26px;font-size:.78rem;font-weight:700;color:var(--muted-2);letter-spacing:.05em}
.phase__tag{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--teal);margin-bottom:6px}
.phase__title{font-size:1.3rem;margin:0 0 8px}
.phase__desc{color:var(--muted);font-size:.98rem;margin-bottom:18px}
.phase__services{display:flex;flex-direction:column;gap:9px;font-size:.93rem}
.phase__services li{display:flex;gap:9px;align-items:flex-start;color:var(--text)}
.phase__services li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--teal);margin-top:9px;flex:none}

/* Services */
.service{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:clamp(24px,3vw,34px);box-shadow:var(--shadow-sm);transition:box-shadow .3s var(--ease),border-color .3s var(--ease)}
.service:hover{box-shadow:var(--shadow);border-color:var(--border-strong)}
.service__band{height:4px;border-radius:99px;margin-bottom:18px;background:var(--green-grad)}
.service__head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:12px}
.service__title{font-size:1.3rem;margin:0}
.service__code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.76rem;font-weight:700;color:var(--muted-2);background:var(--bg-alt);padding:.25rem .55rem;border-radius:7px;flex:none}
.service__std{font-size:.8rem;color:var(--muted);margin:4px 0 0;display:flex;flex-wrap:wrap;gap:6px}
.service__std .badge{font-size:.72rem;padding:.2rem .55rem}
.service__scope{color:var(--text);margin:16px 0 6px;font-size:.98rem}
.service__label{font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted-2);margin:18px 0 10px}
.service__list{display:grid;gap:8px}
.service__list li{display:flex;gap:10px;align-items:flex-start;font-size:.93rem;color:var(--text)}
.service__list li svg{width:17px;height:17px;color:var(--green);flex:none;margin-top:3px}
.service__footer{margin-top:22px;padding-top:18px;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}

/* Methodology steps */
.steps{display:grid;gap:22px}
.step{position:relative;padding:28px;border:1px solid var(--border);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow-sm)}
.step__num{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:12px;background:var(--green-deep);color:#fff;font-weight:800;margin-bottom:14px;font-size:1.05rem}
.step h3{margin:.2em 0 .4em}
.step p{color:var(--muted);margin:0;font-size:.98rem}

/* Standards grid */
.std-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.std{background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);padding:18px 20px}
.std h4{margin:0 0 5px;color:var(--green-deep)}
.std p{margin:0;font-size:.88rem;color:var(--muted)}
.std p b{color:var(--text);font-weight:600}
/* Contact */
.contact-grid{display:grid;grid-template-columns:1.05fr .95fr;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.contact-info{background:var(--green-grad);color:#D7E6DF;padding:clamp(34px,5vw,58px)}
.contact-info h2,.contact-info h3{color:#fff}
.contact-info a{color:#fff;border-bottom:1px solid rgba(255,255,255,.3)}
.contact-info p{color:#CDEBDD}
.ci-row{display:flex;gap:12px;align-items:flex-start;margin-bottom:16px;font-size:.98rem}
.ci-row svg{width:20px;height:20px;color:#9BE7C9;flex:none;margin-top:2px}
.contact-form{background:#fff;padding:clamp(34px,5vw,58px)}
.field{margin-bottom:18px}
.field label{display:block;font-weight:600;font-size:.9rem;margin-bottom:7px;color:var(--text)}
.field input,.field textarea,.field select{width:100%;font:inherit;color:var(--text);padding:.8rem .9rem;border:1.5px solid var(--border-strong);border-radius:10px;background:var(--bg-mute);transition:border-color .2s,background .2s}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--green);background:#fff;box-shadow:0 0 0 3px rgba(13,148,136,.12)}
.field textarea{min-height:130px;resize:vertical}
.form-note{font-size:.82rem;color:var(--muted-2);margin-top:14px}

/* Footer */
.footer{background:#061F17;color:#9DB5AB;padding:64px 0 32px}
.footer__top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:34px;margin-bottom:46px}
.footer h4{color:#fff;font-size:1rem;margin-bottom:16px}
.footer a{color:#B8CDC4;transition:color .2s}
.footer a:hover{color:#fff}
.footer__brand{max-width:34ch;color:#7FA396;margin-top:12px}
.footer li{margin-bottom:9px}
.footer__brand-mark{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:1.1rem;letter-spacing:-.02em}
.footer__bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:26px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:.86rem;color:#6F8E82}

/* Lead CTA + pills + reveal */
.lead-card{background:var(--green-grad);color:#D7E6DF;border-radius:var(--radius);padding:clamp(34px,5vw,60px);text-align:center}
.lead-card h2{color:#fff}
.lead-card p{color:#CDEBDD;max-width:60ch;margin:0 auto 26px}
.pills{display:flex;flex-wrap:wrap;gap:10px}
.pills .badge{background:#fff}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* Responsive */
@media(max-width:980px){
  .grid--4{grid-template-columns:repeat(2,1fr)}
  .std-grid{grid-template-columns:1fr}
  .footer__top{grid-template-columns:1fr 1fr;gap:28px}
}
@media(max-width:760px){
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer__top{grid-template-columns:1fr}
}
@media(max-width:520px){
  .hero__stats{grid-template-columns:1fr;gap:18px}
  .service__head{align-items:flex-start}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}