/* ===========================================================
   FALCO SOLAR — Design tokens
   Palette updated to match official brand logo green (#0A8949)
   =========================================================== */
:root{
  /* Updated Brand Colors */
  --amber-1:#0A8949;
  --amber-2:#076335;
  --navy:#1F1F25;
  --navy-2:#292930;
  --green:#0A8949;
  --green-dark:#076335;
  --cream:#FAFAF8;
  --ink:#1F1F25;
  --slate:#5B6472;
  --slate-light:#8993A1;
  --line:#E7E2DD;
  --white:#FFFFFF;

  --font-display:"Montserrat", "Segoe UI", sans-serif;
  --font-body:"Roboto", "Segoe UI", sans-serif;

  --radius:14px;
  --radius-sm:8px;
  --shadow-sm:0 2px 10px rgba(16,26,44,.06);
  --shadow-md:0 12px 30px rgba(16,26,44,.10);
  --shadow-lg:0 24px 60px rgba(16,26,44,.16);
  --ease:cubic-bezier(.22,1,.36,1);
  --container:1220px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--cream);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{
  font-family:var(--font-display);
  line-height:1.15;
  margin:0 0 .5em;
  color:var(--navy);
  font-weight:800;
  letter-spacing:-.01em;
}
p{margin:0 0 1em;color:var(--slate);line-height:1.7;}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

:focus-visible{outline:3px solid var(--amber-1);outline-offset:2px;border-radius:4px;}

.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section--tight{padding:64px 0;}
.section--dark{background:var(--navy);color:#fff;}
.section--dark p{color:#B9C2D0;}
.section--dark h2, .section--dark h3{color:#fff;}
.section--cream{background:var(--cream);}
.section--white{background:var(--white);}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-display);
  font-size:.72rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;
  color:var(--green-dark);
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";width:20px;height:2px;background:var(--amber-1);display:inline-block;
}
.section--dark .eyebrow{color:var(--amber-1);}

.section-head{max-width:640px;margin-bottom:52px;}
.section-head.center{margin-inline:auto;text-align:center;}
.section-head h2{font-size:clamp(1.8rem,3.2vw,2.6rem);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-family:var(--font-display);font-weight:700;font-size:.92rem;
  padding:15px 28px;border-radius:100px;border:2px 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);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--amber-1),var(--amber-2));
  color:#fff;
  box-shadow:0 10px 24px rgba(10,137,73,.35);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(10,137,73,.45);}
.btn-ghost{
  background:transparent;border-color:rgba(255,255,255,.35);color:#fff;
}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08);}
.btn-outline-dark{background:transparent;border-color:var(--navy);color:var(--navy);}
.btn-outline-dark:hover{background:var(--navy);color:#fff;}
.btn-sm{padding:11px 20px;font-size:.82rem;}

/* ---------------- Header ---------------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  padding:20px 0;
  transition:padding .3s var(--ease),background .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header .container{display:flex;align-items:center;justify-content:space-between;}
.site-header.is-scrolled{
  padding:12px 0;background:rgba(16,26,44,.92);backdrop-filter:blur(10px);
  box-shadow:0 6px 24px rgba(0,0,0,.18);
}
.brand{display:flex;align-items:center;gap:10px;}
.brand img{height:42px;width:auto;}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-text strong{font-family:var(--font-display);font-weight:800;color:#fff;font-size:1.15rem;letter-spacing:.01em;}
.brand-text span{font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--amber-1);font-weight:700;}

.nav-links{display:flex;align-items:center;gap:36px;}
.nav-links a{
  color:#EDEFF3;font-weight:600;font-size:.95rem;position:relative;padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:linear-gradient(90deg,var(--amber-1),var(--amber-2));
  transition:width .25s var(--ease);
}
.nav-links a:hover::after, .nav-links a.active::after{width:100%;}
.nav-links a.active{color:var(--amber-1);}

.nav-cta{display:flex;align-items:center;gap:18px;}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:40px;height:40px;background:none;border:none;cursor:pointer;
}
.nav-toggle span{display:block;height:2px;width:24px;background:#fff;border-radius:2px;transition:transform .3s var(--ease),opacity .3s var(--ease);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

@media (max-width:900px){
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:min(78vw,320px);
    background:var(--navy);flex-direction:column;align-items:flex-start;
    padding:110px 32px 40px;gap:26px;
    transform:translateX(100%);transition:transform .35s var(--ease);
    box-shadow:-10px 0 40px rgba(0,0,0,.3);
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-links a{font-size:1.05rem;}
  .nav-toggle{display:flex;}
  .nav-cta .btn-primary{display:none;}
}

/* ---------------- Hero ---------------- */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  padding:160px 0 100px;overflow:hidden;color:#fff;
}
.hero-slides{position:absolute;inset:0;z-index:-2;}
.hero-slide{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:0;transition:opacity 1.2s var(--ease);
}
.hero-slide.is-active{opacity:1;}
.hero-slide::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(120deg,rgba(31,31,37,.92) 10%,rgba(31,31,37,.55) 55%,rgba(31,31,37,.35));
}
.hero-dots{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:2;}
.hero-dots button{width:8px;height:8px;border-radius:50%;border:none;background:rgba(255,255,255,.4);cursor:pointer;padding:0;transition:all .3s;}
.hero-dots button.is-active{background:var(--amber-1);width:22px;border-radius:5px;}
.hero-orb{
  position:absolute;top:14%;right:6%;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle at 35% 30%,var(--amber-1),var(--amber-2) 55%,transparent 75%);
  filter:blur(6px);opacity:.55;z-index:-1;
  animation:pulseOrb 6s ease-in-out infinite;
}
@keyframes pulseOrb{
  0%,100%{transform:scale(1);opacity:.5;}
  50%{transform:scale(1.08);opacity:.7;}
}
.hero-content{
  max-width:1000px;
  margin-inline:auto;
  text-align:center;
}
.hero-content .eyebrow{color:var(--amber-1);}
.hero-content h1{
  color:#fff;
  font-size:clamp(2rem, 4.2vw, 3.4rem);
  margin-bottom:22px;
}
.hero-content h1 em{
  font-style:normal;color:var(--amber-1);
  background:linear-gradient(135deg,var(--amber-1),var(--amber-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-content p{
  color:#D8DEE8;
  font-size:1.08rem;
  max-width:620px;
  margin-inline:auto;
  text-align:justify;
}
.hero-actions{
  display:flex;
  gap:16px;
  margin-top:34px;
  flex-wrap:wrap;
  justify-content:center;
}

.hero-stats{
  margin-top:64px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  max-width:900px;margin-inline:auto;padding-top:34px;border-top:1px solid rgba(255,255,255,.18);
}
.hero-stats .stat b{
  display:block;font-family:var(--font-display);font-size:clamp(1.6rem,2.6vw,2.1rem);color:#fff;font-weight:800;
}
.hero-stats .stat span{font-size:.82rem;color:#A9B2C1;}
@media (max-width:800px){
  .hero-stats{grid-template-columns:repeat(2,1fr);}
}

/* ---------------- Partner strip ---------------- */
.partner-strip{background:var(--navy-2);padding:34px 0;}
.partner-strip .container{
  display:flex;align-items:center;gap:40px;flex-wrap:wrap;justify-content:space-between;
}
.partner-strip .label{
  font-family:var(--font-display);font-size:.75rem;letter-spacing:.12em;text-transform:uppercase;
  color:#8FA0BB;font-weight:700;white-space:nowrap;
}
.partner-logos{display:flex;align-items:center;gap:44px;flex-wrap:wrap;}
.partner-logos img{height:30px;width:auto;filter:brightness(0) invert(1);opacity:.75;transition:opacity .25s;}
.partner-logos img:hover{opacity:1;}

/* ---------------- About / split sections ---------------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;}
@media (max-width:860px){.split{grid-template-columns:1fr;gap:40px;}}
.split-media{position:relative;}
.split-media img{border-radius:var(--radius);box-shadow:var(--shadow-lg);width:100%;height:420px;object-fit:cover;}
.split-media.reverse{order:2;}
.badge-float{
  position:absolute;bottom:-24px;left:-24px;background:#fff;border-radius:var(--radius-sm);
  padding:18px 22px;box-shadow:var(--shadow-md);display:flex;gap:14px;align-items:center;
}
.badge-float b{display:block;font-family:var(--font-display);font-size:1.4rem;color:var(--navy);font-weight:800;}
.badge-float span{font-size:.78rem;color:var(--slate);}
.badge-float .dot{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--amber-1),var(--amber-2));flex:none;}

.check-list{display:flex;flex-direction:column;gap:14px;margin:24px 0 30px;}
.check-list li{display:flex;align-items:flex-start;gap:12px;color:var(--ink);font-weight:600;font-size:.96rem;}
.check-list li svg{flex:none;margin-top:2px;color:var(--green);}

/* ---------------- Service cards ---------------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
@media (max-width:980px){.grid-3{grid-template-columns:repeat(2,1fr);} .grid-4{grid-template-columns:repeat(2,1fr);}}
@media (max-width:620px){.grid-3, .grid-4{grid-template-columns:1fr;}}

.card{
  background:#fff;border-radius:var(--radius);padding:36px 30px;
  box-shadow:var(--shadow-sm);border:1px solid var(--line);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
  height:100%;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);}
.card .icon{
  width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--amber-1),var(--amber-2));color:#fff;margin-bottom:22px;
}
.card h3{font-size:1.15rem;margin-bottom:10px;}
.card p{font-size:.92rem;margin-bottom:14px;}
.card .card-link{font-weight:700;font-size:.86rem;color:var(--green-dark);display:inline-flex;align-items:center;gap:6px;}
.card .card-link svg{transition:transform .25s var(--ease);}
.card:hover .card-link svg{transform:translateX(4px);}

.card--outline{border:1.5px solid var(--line);box-shadow:none;}
.card--dark{background:var(--navy-2);border-color:rgba(255,255,255,.08);}
.card--dark h3, .card--dark p{color:#fff;}
.card--dark p{color:#B9C2D0;}

/* ---------------- Process ---------------- */
.process-list{display:flex;flex-direction:column;}
.process-item{
  display:grid;grid-template-columns:90px 1fr;gap:28px;padding:30px 0;border-top:1px solid var(--line);
}
.process-item:first-child{border-top:none;}
.process-num{
  font-family:var(--font-display);font-weight:800;font-size:2rem;color:transparent;
  -webkit-text-stroke:1.5px var(--amber-1);
}
.process-item h4{margin-bottom:8px;font-size:1.1rem;}
.process-item p{margin:0;font-size:.94rem;}

/* ---------------- Stats band ---------------- */
.stats-band{
  background:linear-gradient(120deg,var(--green-dark),var(--green));
  padding:60px 0;color:#fff;
}
.stats-band .grid-4{gap:0;}
.stats-band .stat{text-align:center;border-right:1px solid rgba(255,255,255,.2);}
.stats-band .stat:last-child{border-right:none;}
.stats-band .stat b{display:block;font-family:var(--font-display);font-size:clamp(1.8rem,3vw,2.6rem);font-weight:800;}
.stats-band .stat span{font-size:.85rem;opacity:.9;}
@media (max-width:620px){.stats-band .stat{border-right:none;margin-bottom:18px;}}

/* ---------------- Projects / portfolio ---------------- */
.project-card{
  position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);
  aspect-ratio:4/3.1;
}
.project-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.project-card:hover img{transform:scale(1.07);}
.project-overlay{
  position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(16,26,44,.92));
  display:flex;flex-direction:column;justify-content:flex-end;padding:26px;
}
.project-overlay .tag{
  align-self:flex-start;background:var(--amber-1);color:#fff;font-weight:800;font-size:.68rem;
  padding:5px 12px;border-radius:100px;text-transform:uppercase;letter-spacing:.06em;margin-bottom:10px;
}
.project-overlay h4{color:#fff;margin:0 0 4px;font-size:1.1rem;}
.project-overlay span{color:#C7CEDA;font-size:.85rem;}

.filter-row{display:flex;gap:10px;margin-bottom:36px;flex-wrap:wrap;}
.filter-btn{
  font-family:var(--font-display);font-weight:700;font-size:.82rem;padding:10px 20px;border-radius:100px;
  border:1.5px solid var(--line);background:#fff;cursor:pointer;transition:all .25s var(--ease);color:var(--slate);
}
.filter-btn.active, .filter-btn:hover{background:var(--amber-1);color:#fff;border-color:var(--amber-1);}

/* ---------------- Testimonials ---------------- */
.testi-card{
  background:#fff;border-radius:var(--radius);padding:34px;border:1px solid var(--line);height:100%;
  display:flex;flex-direction:column;
}
.testi-card .stars{color:var(--amber-1);margin-bottom:14px;font-size:.9rem;letter-spacing:2px;}
.testi-card p{font-style:italic;color:var(--ink);flex:1;}
.testi-person{display:flex;align-items:center;gap:14px;margin-top:18px;}
.testi-person img{width:48px;height:48px;border-radius:50%;object-fit:cover;}
.testi-person b{display:block;font-size:.92rem;color:var(--navy);}
.testi-person span{font-size:.78rem;color:var(--slate-light);}

/* ---------------- CTA band ---------------- */
.cta-band{
  background:var(--navy);border-radius:28px;padding:64px;margin:0 auto;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;top:-40%;right:-10%;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,var(--amber-1),transparent 70%);opacity:.35;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;position:relative;z-index:1;flex-wrap:wrap;}
.cta-inner h2{color:#fff;margin:0 0 8px;font-size:clamp(1.5rem,2.6vw,2.1rem);max-width:520px;}
.cta-inner p{margin:0;color:#B9C2D0;max-width:460px;}

/* ---------------- Footer ---------------- */
.site-footer{background:var(--navy);color:#B9C2D0;padding:80px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:48px;padding-bottom:56px;}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand img{height:38px;}
.footer-brand strong{color:#fff;font-family:var(--font-display);font-size:1.1rem;}
.site-footer h5{color:#fff;font-family:var(--font-display);font-size:.9rem;letter-spacing:.05em;text-transform:uppercase;margin-bottom:20px;}
.site-footer ul{display:flex;flex-direction:column;gap:12px;}
.site-footer a{color:#B9C2D0;font-size:.92rem;transition:color .2s;}
.site-footer a:hover{color:var(--amber-1);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:.92rem;}
.footer-contact svg{flex:none;color:var(--amber-1);margin-top:3px;}
.social-row{display:flex;gap:12px;margin-top:20px;}
.social-row a{
  width:38px;height:38px;border-radius:50%;border:1.5px solid rgba(255,255,255,.2);
  display:flex;align-items:center;justify-content:center;transition:all .25s var(--ease);
}
.social-row a:hover{background:var(--amber-1);border-color:var(--amber-1);color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:26px 0;display:flex;justify-content:center;
  align-items:center;flex-wrap:wrap;gap:12px;font-size:.82rem;color:#7C8AA3;
}
.footer-bottom a{color:#7C8AA3;}
.footer-bottom a:hover{color:var(--amber-1);}

/* ---------------- Page header (subpages) ---------------- */
.page-header{
  position:relative;padding:190px 0 90px;color:#fff;overflow:hidden;
}
.page-header::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(120deg,rgba(16,26,44,.94),rgba(16,26,44,.7)),
    url("../assets/img/solar-cell-farm-power-station-alternative-energy-from-sun-1024x683.jpg");
  background-size:cover;background-position:center;
}
.page-header .crumbs{color:#A9B2C1;font-size:.88rem;margin-bottom:10px;}
.page-header .crumbs a{color:#A9B2C1;}
.page-header .crumbs a:hover{color:var(--amber-1);}
.page-header h1{color:#fff;font-size:clamp(2rem,4vw,3rem);margin:0;}

/* ---------------- Contact ---------------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;}
@media (max-width:900px){.contact-grid{grid-template-columns:1fr;}}
.contact-info-card{
  background:var(--navy);color:#fff;border-radius:var(--radius);padding:40px;height:100%;
}
.contact-info-card h3{color:#fff;}
.contact-info-list{display:flex;flex-direction:column;gap:22px;margin-top:26px;}
.contact-info-list li{display:flex;gap:16px;align-items:flex-start;}
.contact-info-list .ic{
  width:44px;height:44px;border-radius:12px;background:rgba(10,137,73,.15);color:var(--amber-1);
  display:flex;align-items:center;justify-content:center;flex:none;
}
.contact-info-list b{display:block;color:#fff;font-size:.95rem;margin-bottom:2px;}
.contact-info-list span, .contact-info-list a{color:#B9C2D0;font-size:.9rem;}

.form-card{background:#fff;border-radius:var(--radius);padding:44px;box-shadow:var(--shadow-sm);border:1px solid var(--line);}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px;}
@media (max-width:560px){.form-row{grid-template-columns:1fr;}}
.field label{display:block;font-size:.84rem;font-weight:700;color:var(--navy);margin-bottom:8px;}
.field input, .field select, .field textarea{
  width:100%;padding:14px 16px;border-radius:10px;border:1.5px solid var(--line);
  font-family:var(--font-body);font-size:.94rem;background:var(--cream);color:var(--ink);
  transition:border-color .2s;
}
.field input:focus, .field select:focus, .field textarea:focus{border-color:var(--amber-1);outline:none;background:#fff;}
.field{margin-bottom:20px;}
.form-msg{margin-top:16px;font-size:.9rem;font-weight:600;}
.form-msg.ok{color:var(--green-dark);}
.form-msg.err{color:#C0392B;}

/* ---------------- FAQ ---------------- */
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;padding:24px 0;cursor:pointer;
  font-family:var(--font-display);font-weight:700;color:var(--navy);font-size:1rem;
}
.faq-q svg{transition:transform .3s var(--ease);flex:none;color:var(--amber-1);}
.faq-item.is-open .faq-q svg{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s var(--ease);}
.faq-a p{padding:0 0 22px;margin:0;font-size:.94rem;}

/* ---------------- Team ---------------- */
.team-card{text-align:center;}
.team-card .photo{
  border-radius:var(--radius);overflow:hidden;margin-bottom:18px;aspect-ratio:1/1.05;
}
.team-card .photo img{width:100%;height:100%;object-fit:cover;}
.team-card b{display:block;font-family:var(--font-display);color:var(--navy);font-size:1.02rem;}
.team-card span{font-size:.85rem;color:var(--green-dark);font-weight:600;}

/* ---------------- Reveal on scroll ---------------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s var(--ease),transform .7s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}

/* ---------------- Lite YouTube facade ---------------- */
.video-embed{
  position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:16/10;
  background:#000;cursor:pointer;box-shadow:var(--shadow-sm);
}
.video-embed img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.video-embed:hover img{transform:scale(1.05);}
.video-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0;}
.video-embed .play-btn{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:64px;height:64px;border-radius:50%;
  background:linear-gradient(135deg,var(--amber-1),var(--amber-2));
  display:flex;align-items:center;justify-content:center;box-shadow:0 10px 30px rgba(0,0,0,.4);
  transition:transform .25s var(--ease);
}
.video-embed:hover .play-btn{transform:translate(-50%,-50%) scale(1.1);}
.video-embed .play-btn svg{color:#fff;margin-left:2px;}
.video-caption{padding:16px 4px 0;}
.video-caption b{display:block;color:var(--navy);font-size:.98rem;margin-bottom:3px;}
.video-caption span{font-size:.82rem;color:var(--slate-light);}

/* ---------------- Product spec cards ---------------- */
.spec-card{
  background:#fff;border-radius:var(--radius);padding:26px;border:1px solid var(--line);
  text-align:center;transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.spec-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);}
.spec-card .spec-range{
  font-family:var(--font-display);font-weight:800;color:var(--green-dark);font-size:1.3rem;margin-bottom:6px;
}
.spec-card b{display:block;color:var(--navy);font-size:1.02rem;margin-bottom:4px;}
.spec-card span{font-size:.8rem;color:var(--slate-light);text-transform:uppercase;letter-spacing:.04em;}
.product-tabs{display:flex;gap:10px;margin-bottom:44px;flex-wrap:wrap;justify-content:center;}
.product-intro{max-width:720px;margin:0 auto 48px;text-align:center;}

/* ---------------- Utilities ---------------- */
.text-center{text-align:center;}
.mt-0{margin-top:0;}
.mb-0{margin-bottom:0;}
.back-to-top{
  position:fixed;bottom:26px;right:26px;width:48px;height:48px;border-radius:50%;
  background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-md);opacity:0;pointer-events:none;transition:opacity .3s,transform .3s;z-index:900;
}
.back-to-top.show{opacity:1;pointer-events:auto;}
.back-to-top:hover{transform:translateY(-4px);background:var(--amber-1);color:#fff;}