/* =========================================================
   ECO-GOLDEN — stylesheet
   Design tokens grounded in the subject: galvanized steel,
   hot-dip zinc, robotic welding, and the actual colour code
   used on the waste bins themselves.
   ========================================================= */

:root{
  /* --- steel / zinc greys (structure) --- */
  --steel-950:#14181b;
  --steel-900:#1b2124;
  --steel-800:#242c30;
  --steel-700:#3a444a;
  --steel-600:#57646b;
  --steel-400:#8f9da3;
  --steel-300:#b9c4c8;
  --steel-150:#dde3e4;
  --steel-100:#eef1f1;
  --paper:#f6f7f6;
  --white:#ffffff;

  /* --- eco accent (primary brand colour) --- */
  --eco-900:#123328;
  --eco-700:#1f5c46;
  --eco-600:#26714f      ;
  --eco-500:#2f8b5f;
  --eco-tint:#e7f0ea;

  /* --- signal colours, used sparingly, lifted from the
     hazard chevrons & rating plates in the real product --- */
  --signal:#e2a324;
  --hazard:#c0392b;

  /* --- type --- */
  --f-display:'Space Grotesk', 'Arial Narrow', sans-serif;
  --f-body:'IBM Plex Sans', -apple-system, sans-serif;
  --f-mono:'IBM Plex Mono', 'Courier New', monospace;

  --container: 1220px;
  --radius: 3px;
  --ease: cubic-bezier(.4,0,.2,1);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}

body{
  margin:0;
  font-family:var(--f-body);
  color:var(--steel-900);
  background:var(--paper);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}

img{ max-width:100%; display:block; }
a{ color:inherit; }
h1,h2,h3,h4{ font-family:var(--f-display); margin:0; line-height:1.05; letter-spacing:-.01em; }
p{ margin:0; }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family:inherit; }

:focus-visible{
  outline:2.5px solid var(--eco-500);
  outline-offset:3px;
}

.wrap{
  max-width:var(--container);
  margin:0 auto;
  padding:0 28px;
}

.eyebrow{
  font-family:var(--f-mono);
  font-size:12.5px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--eco-600);
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.eyebrow::before{
  content:'';
  width:22px;
  height:2px;
  background:var(--signal);
  display:inline-block;
}
.section-head{ max-width:680px; margin-bottom:48px; }
.section-head h2{ font-size:clamp(28px,3.6vw,42px); font-weight:600; color:var(--steel-950); }
.section-head .lede{ margin-top:14px; font-size:17px; color:var(--steel-700); max-width:56ch; }
.on-dark .section-head h2{ color:var(--white); }
.on-dark .section-head .lede{ color:var(--steel-300); }

section{ padding:96px 0; }
@media (max-width:720px){ section{ padding:64px 0; } }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--f-mono);
  font-size:13.5px;
  letter-spacing:.03em;
  text-transform:uppercase;
  text-decoration:none;
  padding:14px 24px;
  border-radius:var(--radius);
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease);
}
.btn-primary{ background:var(--eco-500); color:var(--white); }
.btn-primary:hover{ background:var(--eco-600); transform:translateY(-2px); }
.btn-ghost{ border-color:rgba(255,255,255,.35); color:var(--white); }
.btn-ghost:hover{ border-color:var(--white); background:rgba(255,255,255,.08); transform:translateY(-2px); }
.btn-line{ border-color:var(--steel-700); color:var(--steel-900); }
.btn-line:hover{ border-color:var(--eco-600); color:var(--eco-700); transform:translateY(-2px); }

/* ---------- nav ---------- */
.nav{
  position:sticky; top:0; z-index:60;
  background:rgba(20,24,27,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.nav .wrap{ display:flex; align-items:center; justify-content:space-between; height:74px; }
.logo{ display:flex; align-items:center; gap:12px; text-decoration:none; }
.logo-mark{ width:38px; height:38px; flex:none; object-fit:contain; }
.logo-word{
  font-family:'Fredoka', var(--f-display); font-weight:600; font-size:21px;
  color:var(--white); letter-spacing:-.01em; line-height:1;
}
.logo-word em{ font-style:normal; color:var(--eco-500); font-weight:700; }
.logo-word small{
  display:block; font-family:var(--f-mono); font-weight:400; font-size:9.5px;
  letter-spacing:.22em; color:var(--steel-400); margin-top:4px;
}
.nav-links{ display:flex; align-items:center; gap:30px; }
.nav-links a{
  color:var(--steel-300); text-decoration:none; font-size:14px; font-weight:500;
  padding:6px 0; border-bottom:2px solid transparent; transition:color .15s, border-color .15s;
}
.nav-links a:hover{ color:var(--white); border-color:var(--signal); }
.nav-cta{ display:flex; align-items:center; gap:18px; }
.nav-toggle{ display:none; background:none; border:0; color:var(--white); padding:6px; }
.nav-toggle svg{ width:24px; height:24px; }

@media (max-width:900px){
  .nav-links{
    position:fixed; inset:74px 0 auto 0; background:var(--steel-950);
    flex-direction:column; align-items:flex-start; gap:0;
    padding:8px 28px 20px; border-bottom:1px solid rgba(255,255,255,.08);
    transform:translateY(-8px); opacity:0; pointer-events:none; transition:opacity .2s var(--ease), transform .2s var(--ease);
  }
  .nav-links.open{ opacity:1; transform:translateY(0); pointer-events:auto; }
  .nav-links a{ width:100%; padding:13px 0; border-bottom:1px solid rgba(255,255,255,.06); }
  .nav-cta .btn-primary{ display:none; }
  .nav-toggle{ display:block; }
}

/* ---------- hero ---------- */
.hero{
  position:relative;
  background:radial-gradient(ellipse 90% 70% at 15% -10%, #24363015, transparent),
             linear-gradient(180deg,var(--steel-950),var(--steel-900) 60%, var(--steel-800));
  color:var(--white);
  overflow:hidden;
  padding:88px 0 0;
}
.hero .wrap{
  display:grid; grid-template-columns:1.05fr .95fr; gap:40px; align-items:center;
}
.hero-copy .eyebrow{ color:var(--signal); }
.hero-copy .eyebrow::before{ background:var(--eco-500); }
.hero-copy h1{
  font-size:clamp(36px,5vw,58px); font-weight:600; color:var(--white); letter-spacing:-.02em;
}
.hero-copy h1 em{ font-style:normal; color:var(--eco-500); }
.hero-copy .lede{
  margin-top:22px; font-size:18px; color:var(--steel-300); max-width:52ch;
}
.hero-actions{ display:flex; gap:16px; margin-top:34px; flex-wrap:wrap; }

.hero-stats{
  display:flex; gap:30px; margin-top:56px; padding-top:28px;
  border-top:1px solid rgba(255,255,255,.12); flex-wrap:wrap;
}
.hero-stats div b{ display:block; font-family:var(--f-display); font-size:26px; color:var(--white); }
.hero-stats div span{ font-family:var(--f-mono); font-size:11.5px; letter-spacing:.05em; color:var(--steel-400); text-transform:uppercase; }

.hero-media{ position:relative; align-self:end; }
.hero-media .frame{
  position:relative; border-radius:4px; overflow:hidden;
  box-shadow:0 30px 70px -20px rgba(0,0,0,.65);
  border:1px solid rgba(255,255,255,.08);
}
.hero-media img{ width:100%; height:520px; object-fit:cover; display:block; }
.hero-tag{
  position:absolute; left:-18px; bottom:34px;
  background:var(--white); color:var(--steel-950);
  padding:14px 18px; border-radius:2px; width:220px;
  box-shadow:0 18px 40px -12px rgba(0,0,0,.5);
  font-family:var(--f-mono);
}
.hero-tag .dot{ width:8px; height:8px; border-radius:50%; background:var(--eco-500); display:inline-block; margin-right:8px; animation:pulse 2.4s ease-in-out infinite; }
.hero-tag b{ font-size:13px; display:block; margin-bottom:2px; }
.hero-tag span{ font-size:11px; color:var(--steel-600); }
@keyframes pulse{ 0%,100%{ opacity:1; } 50%{ opacity:.35; } }

@media (max-width:900px){
  .hero .wrap{ grid-template-columns:1fr; }
  .hero-media{ margin-top:20px; }
  .hero-media img{ height:340px; }
  .hero-tag{ display:none; }
}

/* ---------- rivet / rating-plate signature component ---------- */
.plate{
  position:relative;
  background:linear-gradient(155deg,#f2f4f3,#dde3e4 60%,#cfd7d9);
  border:1px solid var(--steel-300);
  border-radius:2px;
  padding:22px 22px 20px;
}
.plate::before,.plate::after,
.plate .rivet-tl,.plate .rivet-tr,.plate .rivet-bl,.plate .rivet-br{ content:''; }
.plate{ --rv:6px; }
.plate .rivet-tl,.plate .rivet-tr,.plate .rivet-bl,.plate .rivet-br{
  position:absolute; width:var(--rv); height:var(--rv); border-radius:50%;
  background:radial-gradient(circle at 32% 32%, #fff, #9aa5a8 70%, #6c7a7f);
  box-shadow:0 1px 1px rgba(0,0,0,.35);
}
.plate .rivet-tl{ top:9px; left:9px; }
.plate .rivet-tr{ top:9px; right:9px; }
.plate .rivet-bl{ bottom:9px; left:9px; }
.plate .rivet-br{ bottom:9px; right:9px; }
.plate .plate-label{
  font-family:var(--f-mono); font-size:10.5px; letter-spacing:.12em; text-transform:uppercase;
  color:var(--eco-700); margin-bottom:6px;
}
.plate .plate-value{ font-family:var(--f-mono); font-size:15px; color:var(--steel-900); }
.plate .plate-value b{ font-size:22px; }

/* ---------- product grid ---------- */
.bg-band{ background:var(--white); border-top:1px solid var(--steel-150); border-bottom:1px solid var(--steel-150); }

.product-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
@media (max-width:900px){ .product-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:560px){ .product-grid{ grid-template-columns:1fr; } }

.product-card{
  background:var(--white);
  border:1px solid var(--steel-150);
  border-radius:4px;
  padding:26px 24px 24px;
  display:flex; flex-direction:column; gap:14px;
  transition:transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
}
.product-card:hover{ transform:translateY(-4px); box-shadow:0 20px 40px -22px rgba(20,24,27,.35); border-color:var(--steel-300); }
.card-top{ display:flex; align-items:center; justify-content:space-between; }
.swatch-row{ display:flex; gap:6px; }
.swatch{ width:15px; height:15px; border-radius:3px; border:1px solid rgba(0,0,0,.12); }
.product-card .cap{ font-family:var(--f-display); font-size:34px; font-weight:600; color:var(--steel-950); }
.product-card .cap span{ font-family:var(--f-mono); font-size:14px; color:var(--steel-600); font-weight:400; margin-left:4px; }
.product-card .desc{ font-size:14.5px; color:var(--steel-700); }
.tag-row{ display:flex; gap:8px; flex-wrap:wrap; margin-top:auto; padding-top:10px; border-top:1px dashed var(--steel-150); }
.tag{ font-family:var(--f-mono); font-size:10.5px; text-transform:uppercase; letter-spacing:.06em; color:var(--eco-700); background:var(--eco-tint); padding:4px 8px; border-radius:2px; }

/* ---------- feature (media + copy) ---------- */
.feature{
  display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center;
}
.feature.reverse .feature-media{ order:2; }
.feature-media img{ border-radius:4px; width:100%; height:400px; object-fit:cover; box-shadow:0 24px 50px -26px rgba(20,24,27,.4); }
.feature-media.duo{ display:grid; grid-template-columns:1.2fr .8fr; gap:14px; }
.feature-media.duo img{ height:100%; min-height:260px; }
.feature-copy .spec-list{ margin-top:26px; display:grid; gap:14px; }
.spec-item{ display:flex; gap:14px; align-items:flex-start; }
.spec-item .num{ font-family:var(--f-mono); font-size:12px; color:var(--eco-600); border:1px solid var(--eco-600); border-radius:50%; width:24px; height:24px; flex:none; display:flex; align-items:center; justify-content:center; margin-top:1px; }
.spec-item p{ font-size:15px; color:var(--steel-700); }
.spec-item b{ color:var(--steel-950); }
.plate-mini-row{ display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-top:30px; }
@media (max-width:720px){
  .feature,.feature.reverse .feature-media{ grid-template-columns:1fr; order:initial; }
  .feature-media img{ height:280px; }
  .plate-mini-row{ grid-template-columns:1fr 1fr; }
}

/* ---------- dark section ---------- */
.section-dark{ background:var(--steel-950); color:var(--white); }
.section-dark .steel-underline{ border-color:rgba(255,255,255,.12); }

/* ---------- smart system schematic ---------- */
.schematic{
  display:flex; align-items:center; justify-content:space-between;
  gap:0; margin-top:20px; padding:36px 20px;
  background:var(--steel-900); border:1px solid rgba(255,255,255,.08); border-radius:6px;
  position:relative;
}
.sch-node{ display:flex; flex-direction:column; align-items:center; gap:12px; flex:1; text-align:center; position:relative; z-index:2; }
.sch-icon{
  width:56px; height:56px; border-radius:50%;
  background:var(--steel-800); border:1.5px solid var(--eco-500);
  display:flex; align-items:center; justify-content:center;
  color:var(--eco-500);
}
.sch-icon svg{ width:26px; height:26px; }
.sch-node b{ font-size:13px; color:var(--white); font-weight:600; }
.sch-node span{ font-family:var(--f-mono); font-size:11px; color:var(--steel-400); max-width:120px; }
.sch-line{ flex:.6; height:1.5px; background:repeating-linear-gradient(90deg,var(--eco-500) 0 6px, transparent 6px 12px); margin-top:-42px; position:relative; z-index:1; }
@media (max-width:900px){
  .schematic{ flex-direction:column; gap:28px; }
  .sch-line{ width:1.5px; height:28px; flex:none; margin:-4px 0; background:repeating-linear-gradient(180deg,var(--eco-500) 0 6px, transparent 6px 12px); }
}

.benefit-row{ display:grid; grid-template-columns:repeat(5,1fr); gap:18px; margin-top:44px; }
.benefit{ padding:18px 4px; border-top:2px solid var(--eco-500); }
.benefit b{ display:block; font-size:14.5px; color:var(--white); margin-bottom:6px; }
.benefit span{ font-size:12.5px; color:var(--steel-400); }
@media (max-width:900px){ .benefit-row{ grid-template-columns:repeat(2,1fr); } }

/* ---------- process (numbered, real sequence) ---------- */
.process-track{ position:relative; margin-top:20px; }
.process-track::before{
  content:''; position:absolute; top:26px; left:0; right:0; height:2px;
  background:repeating-linear-gradient(90deg, var(--steel-300) 0 10px, transparent 10px 18px);
  z-index:0;
}
.process-grid{ display:grid; grid-template-columns:repeat(5,1fr); gap:22px; position:relative; z-index:1; }
.process-step{ display:flex; flex-direction:column; gap:14px; }
.process-num{
  width:52px; height:52px; border-radius:50%; background:var(--steel-950); color:var(--white);
  font-family:var(--f-mono); font-size:15px; display:flex; align-items:center; justify-content:center; border:3px solid var(--paper);
  box-shadow:0 0 0 1px var(--steel-300);
}
.process-step img{ height:150px; width:100%; object-fit:cover; border-radius:3px; }
.process-step h4{ font-size:15px; font-weight:600; }
.process-step p{ font-size:13.5px; color:var(--steel-700); }
@media (max-width:960px){
  .process-track::before{ display:none; }
  .process-grid{ grid-template-columns:1fr 1fr; }
}
@media (max-width:560px){ .process-grid{ grid-template-columns:1fr; } }

/* ---------- compliance / stats band ---------- */
.stats-band{ background:var(--eco-900); color:var(--white); }
.stats-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:24px; }
.stat b{ font-family:var(--f-display); font-size:clamp(30px,3.4vw,44px); display:block; color:var(--white); }
.stat span{ font-family:var(--f-mono); font-size:11.5px; text-transform:uppercase; letter-spacing:.06em; color:#9ec4b1; }
@media (max-width:720px){ .stats-grid{ grid-template-columns:1fr 1fr; } }

.compliance-row{ display:flex; gap:16px; flex-wrap:wrap; margin-top:26px; }
.compliance-chip{
  font-family:var(--f-mono); font-size:12px; padding:9px 14px; border:1px solid var(--steel-300);
  border-radius:3px; color:var(--steel-800); background:var(--white);
}

/* ---------- contact ---------- */
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:60px; }
.contact-block{ margin-bottom:26px; }
.contact-block .label{ font-family:var(--f-mono); font-size:11px; text-transform:uppercase; letter-spacing:.1em; color:var(--eco-600); margin-bottom:8px; }
.contact-block p, .contact-block a{ font-size:16px; color:var(--steel-900); text-decoration:none; }
.contact-block a:hover{ color:var(--eco-700); }
.map-card{
  border:1px solid var(--steel-300); border-radius:4px; overflow:hidden;
  background:
    linear-gradient(180deg, rgba(20,24,27,.72), rgba(20,24,27,.55)),
    repeating-linear-gradient(45deg, #cfd7d9 0 2px, #dde3e4 2px 40px);
  min-height:280px; display:flex; flex-direction:column; justify-content:flex-end; padding:26px;
  color:var(--white);
}
.map-card b{ font-size:18px; }
.map-card p{ color:var(--steel-300); margin-top:6px; font-size:14px; }
.map-card .btn{ margin-top:18px; align-self:flex-start; }

.person-row{ display:flex; gap:24px; flex-wrap:wrap; margin-top:6px; }
.person{ font-size:14.5px; }
.person b{ display:block; color:var(--steel-950); }
.person a{ color:var(--eco-700); text-decoration:none; }

/* ---------- CTA banner ---------- */
.cta-banner{
  background:linear-gradient(120deg,var(--eco-700),var(--eco-900));
  color:var(--white); border-radius:8px; padding:56px; text-align:center;
  display:flex; flex-direction:column; align-items:center; gap:18px;
}
.cta-banner h2{ font-size:clamp(24px,3vw,34px); font-weight:600; }
.cta-banner p{ color:#c9e2d4; max-width:56ch; }

/* ---------- footer ---------- */
footer{ background:var(--steel-950); color:var(--steel-400); padding:64px 0 28px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px; padding-bottom:40px; border-bottom:1px solid rgba(255,255,255,.08); }
.footer-grid h5{ font-family:var(--f-mono); font-size:11.5px; text-transform:uppercase; letter-spacing:.1em; color:var(--steel-300); margin-bottom:16px; }
.footer-grid p{ font-size:13.5px; color:var(--steel-400); max-width:32ch; }
.footer-grid ul li{ margin-bottom:9px; }
.footer-grid ul a{ font-size:14px; color:var(--steel-400); text-decoration:none; }
.footer-grid ul a:hover{ color:var(--white); }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; padding-top:24px; font-size:12.5px; flex-wrap:wrap; gap:12px; }
.footer-bottom .brand-note{ color:var(--steel-600); }
@media (max-width:800px){ .footer-grid{ grid-template-columns:1fr 1fr; } }

/* ---------- reveal-on-scroll ---------- */
.reveal{ opacity:0; transform:translateY(18px); transition:opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible{ opacity:1; transform:none; }

/* ---------- misc grid helpers ---------- */
.two-col{ display:grid; grid-template-columns:1fr 1fr; gap:22px; }
@media (max-width:720px){ .two-col{ grid-template-columns:1fr; } .stats-grid{gap:30px 20px;} .contact-grid{ grid-template-columns:1fr; gap:40px; } }