/*
Theme Name: Riben Hopper
Theme URI: https://ribenhopper.com.sg/
Author: Riben Hopper
Description: Faithful static WordPress port of the supplied Riben HTML files.
Version: 0.2.0
Text Domain: riben-hopper
*/
/* ============================================================
   Riben Hopper Pte Ltd — Landing Page
   Pure HTML + CSS (no JS). Responsive.
   ============================================================ */

/* ---------- Design tokens ---------- */
:root{
  --navy:       #1d2737;
  --navy-deep:  #18212e;
  --navy-soft:  #243246;
  --red:        #c12e2a;
  --red-dark:   #a52522;
  --red-prod-a: #c43a31;
  --red-prod-b: #a82a23;
  --cream:      #f1eee7;
  --cream-2:    #ece8df;
  --ink:        #1d2737;
  --muted:      #6c7480;
  --muted-light:#a9b1bd;
  --white:      #ffffff;
  --line:       rgba(255,255,255,.14);

  --wrap: 1240px;
  --pad: 24px;
  --radius: 14px;
  --radius-lg: 20px;

  --sans: 'DM Sans', system-ui, -apple-system, sans-serif;
  --serif: 'DM Sans', system-ui, -apple-system, sans-serif;
  --mono: 'DM Sans', system-ui, -apple-system, sans-serif;
}

/* ---------- Reset ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  margin:0;
  font-family:var(--sans);
  color:var(--ink);
  background:var(--white);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; }
h1,h2,h3,h4,p{ margin:0; }
ul{ margin:0; padding:0; list-style:none; }

/* ---------- Layout helpers ---------- */
.wrap{ width:100%; max-width:var(--wrap); margin-inline:auto; padding-inline:var(--pad); }
.section{ padding-block:clamp(64px,8vw,110px); }

.eyebrow{
  font-size:.78rem; font-weight:600; letter-spacing:.34em;
  text-transform:uppercase; color:var(--red);
}
.eyebrow.on-dark{ color:var(--muted-light); }
.eyebrow.centered{ text-align:center; display:block; }

.h-section{
  font-weight:700; line-height:1.08; letter-spacing:-.01em;
  font-size:clamp(2rem,4.4vw,3.4rem);
}
.text-center{ text-align:center; }
.lead{ color:var(--muted); font-size:1.06rem; line-height:1.7; }

/* ---------- Image placeholders ---------- */
.ph{
  position:relative; overflow:hidden;
  background-color:#d9d6cd;
  background-image:repeating-linear-gradient(45deg,
    rgba(0,0,0,.05) 0 12px, rgba(0,0,0,0) 12px 24px);
  display:flex; align-items:center; justify-content:center; text-align:center;
}
.ph span{
  font-family:var(--mono); font-size:.72rem; letter-spacing:.04em;
  color:#7c7a70; padding:.5em 1em; line-height:1.5;
  border:1px dashed rgba(0,0,0,.22); border-radius:6px;
  background:rgba(255,255,255,.35); max-width:80%;
}
.ph.dark{ background-color:#2b3645;
  background-image:repeating-linear-gradient(45deg,
    rgba(255,255,255,.05) 0 12px, rgba(255,255,255,0) 12px 24px); }
.ph.dark span{ color:#aeb6c2; border-color:rgba(255,255,255,.22);
  background:rgba(0,0,0,.2); }
.ph span:empty{ display:none; } /* full-bleed bg placeholders have no label */
.ph:has(> img){
  background:none !important;
  background-image:none !important;
}
.ph:has(> img) > span{
  display:none;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:.7em;
  font-weight:600; font-size:.95rem; border:none; border-radius:999px;
  padding:.85em 1.6em; transition:transform .15s ease, background .2s ease, color .2s ease;
}
.btn:hover{ transform:translateY(-2px); }
.btn-red{ background:var(--red); color:#fff; }
.btn-red:hover{ background:var(--red-dark); }
.btn-outline-light{ background:transparent; color:#fff; border:1.5px solid rgba(255,255,255,.6); }
.btn-outline-light:hover{ background:#fff; color:var(--ink); }

/* pill with leading circle-arrow */
.btn-pill{
  background:var(--red); color:#fff; border-radius:999px;
  padding:.4em .5em .4em .5em; gap:.9em; padding-right:1.6em;
}
.btn-pill .circ{
  width:38px; height:38px; border-radius:50%; background:#fff; color:var(--red);
  display:grid; place-items:center; flex:none;
}
.btn-pill:hover{ background:var(--red-dark); }

/* small red circle arrow + label (service cards) */
.learn{
  display:inline-flex; align-items:center; gap:.75em;
  font-weight:600; font-size:.92rem;
}
.learn .circ{
  width:42px; height:42px; border-radius:50%; background:var(--red); color:#fff;
  display:grid; place-items:center; flex:none; transition:background .2s ease, transform .2s ease;
}
.learn:hover .circ{ background:var(--red-dark); transform:translateX(3px); }

.icon{ width:1.1em; height:1.1em; stroke:currentColor; fill:none;
  stroke-width:2; stroke-linecap:round; stroke-linejoin:round; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(255,255,255,.92); backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(0,0,0,.05);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  gap:1.5rem; min-height:84px;
}
/* logo */
.logo{ display:flex; align-items:center; gap:.6rem; }
.logo .mark{
  font-family:var(--serif); color:var(--red); font-size:2.6rem; line-height:.8;
  position:relative;
}
.logo .mark sup{ font-size:.7rem; top:-1.2em; }
.logo .word{
  font-family:var(--serif); line-height:1.05; letter-spacing:.02em;
  font-size:1.04rem; color:var(--ink); text-transform:uppercase;
}
.logo .word b{ font-weight:400; display:block; }

.main-nav ul{ display:flex; align-items:center; gap:2.2rem; }
.main-nav a{
  font-weight:500; font-size:.95rem; color:var(--ink);
  padding:.4em 0; position:relative; transition:color .2s ease;
}
.main-nav a:hover{ color:var(--red); }
.main-nav a.active{ color:var(--red); font-weight:600; }

.header-actions{ display:flex; align-items:center; gap:1.4rem; }
.header-actions .contact-link{ font-weight:600; font-size:.9rem; letter-spacing:.04em;
  text-transform:uppercase; }
.phone-btn{
  width:54px; height:54px; border-radius:999px; background:var(--red); color:#fff;
  display:grid; place-items:center; flex:none; transition:background .2s ease;
}
.phone-btn:hover{ background:var(--red-dark); }
.phone-btn .icon{ width:22px; height:22px; }

/* mobile nav (checkbox hack, pure CSS) */
.nav-toggle{ display:none; }
.hamburger{
  display:none; width:46px; height:46px; border:1px solid rgba(0,0,0,.12);
  border-radius:10px; background:#fff; place-items:center;
}
.hamburger span, .hamburger span::before, .hamburger span::after{
  content:''; display:block; width:22px; height:2px; background:var(--ink);
  position:relative; transition:.25s;
}
.hamburger span::before{ position:absolute; top:-7px; }
.hamburger span::after{ position:absolute; top:7px; }

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative; overflow:hidden; text-align:center;
  background:
    radial-gradient(120% 90% at 50% -10%, #ffffff 0%, #eef0f3 55%, #e7eaef 100%);
}
.hero::before,.hero::after{
  content:''; position:absolute; inset:0; pointer-events:none;
  background-repeat:no-repeat;
}
.hero::before{
  background:
    radial-gradient(40% 60% at 8% 30%, rgba(120,140,170,.18), transparent 60%),
    radial-gradient(45% 55% at 95% 22%, rgba(120,140,170,.16), transparent 60%);
}
.hero-inner{ position:relative; padding-block:clamp(48px,7vw,84px) 0; }
.hero h1{
  font-weight:800; line-height:1.05; letter-spacing:-.02em;
  font-size:clamp(2.4rem,5.6vw,4.6rem); max-width:14ch; margin-inline:auto;
}
.hero h1 .accent{ color:var(--red); }
.hero p.lead{ max-width:60ch; margin:1.4rem auto 0; }
.hero .btn-pill{ margin-top:2rem; }

.hero-product{
  position:relative; width:min(340px,62vw); aspect-ratio:1/1;
  margin:1.5rem auto 0; border-radius:6px;
}
.hero-arrow{ position:absolute; left:-72px; top:-26px; width:70px; height:70px;
  color:var(--ink); }
.hero-grid-deco{
  position:absolute; inset:-30px; z-index:-1;
  background-image:
    linear-gradient(rgba(193,46,42,.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(193,46,42,.10) 1px, transparent 1px);
  background-size:46px 46px;
  -webkit-mask-image:radial-gradient(circle at center, #000 35%, transparent 72%);
          mask-image:radial-gradient(circle at center, #000 35%, transparent 72%);
}

/* warranty strip */
.warranty{
  position:relative; margin-top:clamp(40px,6vw,70px);
  border-top:1px solid rgba(193,46,42,.5); border-bottom:1px solid rgba(193,46,42,.5);
}
.warranty .wrap{ display:flex; align-items:stretch; justify-content:space-between;
  flex-wrap:wrap; }
.warranty .cell{
  display:flex; align-items:center; gap:.6rem; padding-block:18px; flex:1 1 220px;
  font-size:.92rem; color:var(--ink);
}
.warranty .cell .sep{ font-family:var(--serif); color:var(--red); font-size:1.7rem;
  opacity:.6; margin-inline:auto; }
.warranty .cell b{ font-weight:700; }

/* ============================================================
   SERVICES
   ============================================================ */
.services{ background:var(--navy); color:#fff; position:relative; overflow:hidden; }
.services::before{
  content:''; position:absolute; inset:0; opacity:.5;
  background:linear-gradient(180deg,#1d2737, #202c3e);
}
.services .wrap{ position:relative; }
.services .h-section{ color:#fff; }
.services-head{ text-align:center; margin-bottom:clamp(36px,5vw,60px); }
.services-head .eyebrow{ margin-bottom:1rem; }

.card-grid{ display:grid; gap:clamp(20px,3vw,34px);
  grid-template-columns:repeat(3,1fr); }
.service-card .img{ aspect-ratio:16/12; border-radius:10px; }
.service-card h3{ font-size:1.4rem; font-weight:700; margin-top:1.4rem; }
.service-card p{ color:#aab2bf; margin-top:.7rem; line-height:1.65; font-size:.98rem; }
.service-card .learn{ margin-top:1.4rem; color:#fff; }

/* ============================================================
   ABOUT
   ============================================================ */
.about{ display:grid; grid-template-columns:1fr 1fr; align-items:stretch; }
.about .copy{ background:var(--cream); display:flex; flex-direction:column;
  justify-content:center; padding:clamp(48px,7vw,110px) clamp(28px,5vw,80px); }
.about .eyebrow{ color:var(--ink); opacity:.7; }
.about h2{ margin-top:1.1rem; max-width:12ch; }
.about p{ color:#56606e; margin-top:1.5rem; max-width:46ch; line-height:1.8; }
.about .btn{ margin-top:2rem; align-self:flex-start; }
.about .media{ min-height:420px; }
.about .media .ph{ width:100%; height:100%; }

/* ============================================================
   WHY CHOOSE
   ============================================================ */
.why{ position:relative; color:#fff; overflow:hidden;
  background:var(--navy-deep); }
.why .bg{ position:absolute; inset:0; z-index:0; }
.why .bg .ph{ width:100%; height:100%; }
.why::after{ content:''; position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(24,33,46,.86), rgba(24,33,46,.78)); z-index:1; }
.why .wrap{ position:relative; z-index:2; }
.why h2{ max-width:16ch; }
.why .lead{ color:#cdd3dc; margin-top:1.2rem; max-width:52ch; }
.why-features{
  display:grid; grid-template-columns:repeat(4,1fr); gap:clamp(20px,3vw,40px);
  margin-top:clamp(40px,5vw,64px);
}
.feature .f-ic{ width:46px; height:46px; color:#fff; margin-bottom:1rem; }
.feature .f-ic .icon{ width:100%; height:100%; stroke-width:1.4; }
.feature h3{ font-size:1.18rem; font-weight:700; line-height:1.25; }
.feature p{ color:#b9c0ca; margin-top:.6rem; font-size:.95rem; line-height:1.6; }

/* ============================================================
   PRODUCTS
   ============================================================ */
.products{ position:relative; color:#fff; overflow:hidden;
  background:linear-gradient(135deg, var(--red-prod-a), var(--red-prod-b)); }
.products .head{ text-align:center; }
.products .eyebrow{ color:rgba(255,255,255,.85); }
.products .h-section{ color:#fff; margin-top:.8rem; }
.products-grid{
  display:grid; grid-template-columns:1fr minmax(260px,1fr) 1fr;
  align-items:center; gap:clamp(24px,4vw,48px);
  margin-top:clamp(36px,5vw,56px);
}
.prod-col .p-ic{ width:42px; height:42px; color:#fff; margin-bottom:1rem; }
.prod-col h3{ font-size:1.7rem; font-weight:700; }
.prod-col p{ color:rgba(255,255,255,.88); margin-top:.9rem; line-height:1.7; max-width:38ch; }
.prod-col.right{ text-align:left; }
.prod-col .btn{ margin-top:1.6rem; }
.prod-media{ aspect-ratio:1/1; }
.prod-media .ph{ width:100%; height:100%; background-color:rgba(255,255,255,.12);
  background-image:repeating-linear-gradient(45deg, rgba(255,255,255,.12) 0 12px, transparent 12px 24px); }
.prod-media .ph span{ color:#fff; border-color:rgba(255,255,255,.5); background:rgba(0,0,0,.15); }
.dots{ display:flex; gap:.6rem; justify-content:center; margin-top:clamp(28px,4vw,40px); }
.dots i{ width:11px; height:11px; border-radius:50%; background:rgba(255,255,255,.4); }
.dots i.active{ background:#fff; }

/* ============================================================
   USER MANUAL
   ============================================================ */
.manual{ position:relative; color:#fff; overflow:hidden; background:var(--navy); }
.manual::after{ content:''; position:absolute; inset:0; opacity:.5;
  background:linear-gradient(180deg,#1d2737,#1a2330); }
.manual .wrap{ position:relative; z-index:2;
  display:grid; grid-template-columns:1fr 1.15fr; gap:clamp(36px,5vw,72px); }
.manual h2{ margin-top:1rem; }
.manual .tabs{ display:flex; gap:2rem; margin-top:1.6rem; }
.manual .tabs a{ font-weight:600; letter-spacing:.04em; color:#8d96a3; padding-bottom:.5rem; }
.manual .tabs a.active{ color:#fff; border-bottom:2px solid var(--red); }
.manual .m-media{ margin-top:2.2rem; aspect-ratio:4/3; max-width:420px; }
.manual .m-media .ph{ width:100%; height:100%; }
.manual .intro p{ color:#dfe3e9; font-weight:600; line-height:1.6; }
.manual .intro p + p{ margin-top:1.2rem; }
.manual .steps{ margin-top:2rem; display:grid; gap:1.6rem; }
.manual .step{ display:grid; grid-template-columns:auto 1fr; gap:1.2rem; align-items:start; }
.manual .step .num{ font-size:2.6rem; font-weight:700; color:var(--red); line-height:.9;
  font-variant-numeric:tabular-nums; }
.manual .step p{ color:#c4cad3; line-height:1.65; font-size:.97rem; }
.manual .btn-red{ margin-top:2.2rem; }

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testi{ background:var(--cream); }
.testi-head{ display:flex; align-items:flex-end; justify-content:space-between;
  gap:1.5rem; flex-wrap:wrap; }
.testi-eyebrow{ display:flex; align-items:center; gap:.9rem; }
.testi-eyebrow .q{ width:42px; height:42px; border-radius:8px; background:var(--red);
  color:#fff; display:grid; place-items:center; font-family:var(--serif); font-size:1.5rem; }
.testi-eyebrow .eyebrow{ color:var(--ink); opacity:.65; }
.testi h2{ margin-top:.7rem; }
.testi-grid{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(20px,3vw,32px);
  margin-top:clamp(32px,4vw,52px); position:relative; }
.testi-card{ position:relative; overflow:hidden; background:#fff; border-radius:var(--radius-lg);
  padding:clamp(28px,3vw,42px); box-shadow:0 18px 40px -28px rgba(0,0,0,.35); }
.testi-card .name{ font-size:1.35rem; font-weight:700; }
.testi-card .stars{ color:var(--red); letter-spacing:.18em; margin-top:.5rem; font-size:1rem; }
.testi-card .quote{ color:#3f4856; margin-top:1.3rem; line-height:1.7; white-space:pre-line; }
.testi-card .bigq{ position:absolute; top:1.2rem; right:1.6rem; font-family:var(--serif);
  font-size:6rem; color:rgba(29,39,55,.06); line-height:1; pointer-events:none; }
.testi-arrows{ }
.testi-arrows button{ position:absolute; top:50%; transform:translateY(-50%);
  width:46px; height:46px; border-radius:50%; border:none; background:transparent; color:var(--ink); }
.testi-arrows .prev{ left:-58px; } .testi-arrows .next{ right:-58px; }
.testi-arrows .icon{ width:28px; height:28px; }

/* ============================================================
   CERTIFICATIONS
   ============================================================ */
.certs{ position:relative; color:#fff; overflow:hidden; }
.certs .bg{ position:absolute; inset:0; }
.certs .bg .ph{ width:100%; height:100%; }
.certs::after{ content:''; position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(60,48,34,.72), rgba(40,32,22,.82)); z-index:1; }
.certs .wrap{ position:relative; z-index:2; text-align:center; }
.certs .h-section{ color:#fff; margin-top:.8rem; }
.cert-row{ display:grid; grid-template-columns:repeat(5,1fr); gap:clamp(14px,2vw,24px);
  margin-top:clamp(36px,4vw,56px); }
.cert-row .ph{ aspect-ratio:3/4; border-radius:6px; background-color:#eceae4;
  background-image:repeating-linear-gradient(45deg, rgba(0,0,0,.05) 0 10px, transparent 10px 20px); }

/* ============================================================
   GET IN TOUCH
   ============================================================ */
.contact{ display:grid; grid-template-columns:1.05fr .95fr; align-items:stretch;
  background:linear-gradient(180deg,#eef0f3,#e9ecf0); }
.contact .inner{ padding:clamp(48px,6vw,96px) clamp(28px,5vw,72px); display:flex;
  flex-direction:column; justify-content:center; }
.contact h2{ }
.contact .lead{ margin-top:1rem; max-width:46ch; }
.contact .info{ display:flex; flex-wrap:wrap; gap:1.6rem 2.4rem; margin-top:2rem; }
.contact .info .item{ display:flex; align-items:center; gap:.9rem; font-weight:600; }
.contact .info .item .ic{ width:46px; height:46px; border-radius:50%; background:var(--red);
  color:#fff; display:grid; place-items:center; flex:none; }
.contact .info .item .ic .icon{ width:20px; height:20px; }

.contact-form{ margin-top:2rem; display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.field{ position:relative; }
.field.full{ grid-column:1/-1; }
.field input, .field select, .field textarea{
  width:100%; border:none; border-radius:10px; background:#fff; padding:1.1em 3em 1.1em 1.2em;
  font-family:inherit; font-size:1rem; color:var(--ink); box-shadow:0 8px 24px -20px rgba(0,0,0,.4);
}
.field textarea{ min-height:150px; resize:vertical; padding-right:1.2em; }
.field select{ appearance:none; color:#7a828d; }
.field .f-ic{ position:absolute; right:1.1em; top:1.25em; width:20px; height:20px; color:var(--red);
  pointer-events:none; }
.field input::placeholder, .field textarea::placeholder{ color:#8b929c; }
.field input:focus, .field select:focus, .field textarea:focus{
  outline:2px solid rgba(193,46,42,.4); outline-offset:1px; }
.contact-form .btn{ grid-column:1/-1; justify-self:start; padding-inline:2.6em; }
.contact .media{ min-height:480px; }
.contact .media .ph{ width:100%; height:100%; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{ position:relative; overflow:hidden; background:var(--navy); color:#fff; }
.site-footer .watermark{ position:absolute; right:18%; top:50%; transform:translateY(-50%);
  font-family:var(--serif); font-size:26rem; line-height:.7; color:rgba(255,255,255,.03);
  pointer-events:none; z-index:0; }
.footer-grid{ position:relative; z-index:1; display:grid; grid-template-columns:1.2fr 1fr;
  gap:clamp(36px,5vw,64px); padding-block:clamp(48px,6vw,80px); }
.footer-logo{ display:flex; align-items:center; gap:.7rem; }
.footer-logo .mark{ font-family:var(--serif); color:var(--red); font-size:3.4rem; line-height:.8; position:relative; }
.footer-logo .mark sup{ font-size:.75rem; top:-1.4em; }
.footer-logo .word{ font-family:var(--serif); text-transform:uppercase; font-size:1.5rem;
  line-height:1.05; letter-spacing:.02em; }
.footer-logo .word b{ font-weight:400; display:block; }
.follow{ display:flex; align-items:center; gap:.8rem; margin-top:2rem; color:#aeb6c2; font-size:.92rem; }
.follow .soc{ width:34px; height:34px; border-radius:50%; background:var(--red); color:#fff;
  display:grid; place-items:center; transition:background .2s ease; }
.follow .soc:hover{ background:var(--red-dark); }
.follow .soc .icon{ width:17px; height:17px; }
.copyright{ color:#9aa2af; font-size:.92rem; margin-top:clamp(36px,5vw,84px); }
.copyright b{ color:#fff; font-weight:600; }
.foot-info .eyebrow{ color:#7c8593; }
.foot-info ul{ margin-top:1.6rem; display:grid; gap:1.1rem; }
.foot-info li{ display:flex; align-items:flex-start; gap:.8rem; color:#cdd3dc; }
.foot-info li .icon{ width:19px; height:19px; color:#9aa2af; flex:none; margin-top:.15rem; }
.foot-nav{ display:flex; flex-wrap:wrap; gap:1.4rem; margin-top:clamp(36px,5vw,84px);
  justify-content:flex-end; }
.foot-nav a{ color:#dfe3e9; font-size:.95rem; }
.foot-nav a:hover{ color:var(--red); }

/* ---------- Floating action buttons ---------- */
.fab{ position:fixed; right:20px; bottom:24px; z-index:60; display:flex; flex-direction:column;
  gap:14px; }
.fab a, .fab button{ width:54px; height:54px; border-radius:50%; display:grid; place-items:center;
  color:#fff; border:none; box-shadow:0 10px 24px -10px rgba(0,0,0,.5); transition:transform .15s ease; }
.fab a:hover, .fab button:hover{ transform:translateY(-3px); }
.fab .call{ background:var(--red); } .fab .wa{ background:#25d366; }
.fab .top{ background:var(--navy-soft); }
.fab .icon{ width:24px; height:24px; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1024px){
  .why-features{ grid-template-columns:repeat(2,1fr); row-gap:36px; }
  .cert-row{ grid-template-columns:repeat(3,1fr); }
  .products-grid{ grid-template-columns:1fr; }
  .prod-media{ order:-1; max-width:360px; margin-inline:auto; }
  .prod-col.right{ text-align:center; }
  .prod-col{ text-align:center; }
  .prod-col .p-ic{ margin-inline:auto; }
  .prod-col p{ margin-inline:auto; }
}

@media (max-width:860px){
  .main-nav, .header-actions .contact-link{ display:none; }
  .hamburger{ display:grid; }
  /* slide-down mobile menu */
  .main-nav{ position:absolute; left:0; right:0; top:100%; background:#fff;
    border-bottom:1px solid rgba(0,0,0,.08); box-shadow:0 20px 30px -20px rgba(0,0,0,.3);
    max-height:0; overflow:hidden; transition:max-height .3s ease; }
  .nav-toggle:checked ~ .main-nav{ display:block; max-height:340px; }
  .main-nav ul{ flex-direction:column; align-items:flex-start; gap:0; padding:.5rem var(--pad) 1rem; }
  .main-nav li{ width:100%; }
  .main-nav a{ display:block; width:100%; padding:.9em 0; border-bottom:1px solid rgba(0,0,0,.06); }

  .card-grid{ grid-template-columns:1fr; max-width:460px; margin-inline:auto; }
  .about{ grid-template-columns:1fr; }
  .about .media{ min-height:340px; order:-1; }
  .manual .wrap{ grid-template-columns:1fr; }
  .manual .m-media{ margin-inline:auto; }
  .testi-grid{ grid-template-columns:1fr; }
  .testi-arrows{ display:none; }
  .contact{ grid-template-columns:1fr; }
  .contact .media{ min-height:300px; order:-1; }
  .footer-grid{ grid-template-columns:1fr; }
  .foot-nav{ justify-content:flex-start; }
  .hero-arrow{ display:none; }
}

@media (max-width:560px){
  :root{ --pad:18px; }
  .why-features{ grid-template-columns:1fr; }
  .cert-row{ grid-template-columns:repeat(2,1fr); }
  .contact-form{ grid-template-columns:1fr; }
  .warranty .cell .sep{ display:none; }
  .warranty .cell{ flex-basis:100%; justify-content:center; }
  .header-actions .phone-btn{ display:none; }
  .testi-card .bigq{ font-size:4rem; }
}