/* ==========================================================================
   Adelaide Flat-Pack Assembly — design tokens
   Direction: "the instruction sheet" — the visual language of flat-pack
   assembly manuals (line diagrams, numbered steps, fold marks) rendered
   as a real brand system, not stock-photo trade-site defaults.
   ========================================================================== */

:root{
  --ink:        #1C2B33;   /* workshop charcoal-blue, primary text/dark bg */
  --ink-70:     rgba(28,43,51,.72);
  --ink-45:     rgba(28,43,51,.5);
  --paper:      #EDE7DA;   /* kraft/plywood paper background */
  --paper-light:#F7F4EC;
  --white:      #FFFFFF;
  --steel:      #4C6B7A;   /* secondary accent, cool steel-blue */
  --steel-dark: #2F4753;
  --amber:      #EFA132;   /* hardware/hi-vis accent — CTA colour */
  --amber-dark: #C77E17;
  --line:       rgba(28,43,51,.14);
  --line-strong:rgba(28,43,51,.28);

  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body:    'Inter', system-ui, sans-serif;
  --font-mono:    'Space Mono', 'Courier New', monospace;

  --radius: 3px;
  --container: 1120px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;overflow-x:hidden;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--paper-light);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  max-width:100vw;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:700;
  line-height:1.08;
  margin:0 0 .5em;
  letter-spacing:-0.01em;
}
h1{font-size:clamp(2.2rem,6vw,3.6rem);}
h2{font-size:clamp(1.7rem,4vw,2.4rem);}
h3{font-size:1.25rem;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;}
.container{max-width:var(--container);margin:0 auto;padding:0 20px;}
.section{padding:72px 0;}
.section-tight{padding:48px 0;}
.eyebrow{
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--amber-dark);
  display:flex;align-items:center;gap:10px;
  margin-bottom:14px;
}
.eyebrow::before{content:'';width:26px;height:2px;background:var(--amber);display:inline-block;}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-display);font-weight:700;font-size:.98rem;
  padding:14px 26px;border-radius:var(--radius);
  border:2px solid transparent;cursor:pointer;
  transition:transform .15s ease, background .15s ease, border-color .15s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px);}
.btn-primary{background:var(--amber);color:var(--ink);}
.btn-primary:hover{background:var(--amber-dark);}
.btn-outline{background:transparent;color:var(--paper-light);border-color:rgba(255,255,255,.4);}
.btn-outline:hover{border-color:var(--amber);color:var(--amber);}
.btn-dark{background:var(--ink);color:var(--paper-light);}
.btn-dark:hover{background:var(--steel-dark);}
.btn-block{width:100%;}

/* header ---------------------------------------------------------------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:var(--ink);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 20px;max-width:var(--container);margin:0 auto;
}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:700;color:var(--paper-light);font-size:1.05rem;}
.brand .mark{
  width:38px;height:38px;flex:none;
  display:flex;align-items:center;justify-content:center;
}
nav.main-nav{display:flex;align-items:center;gap:28px;}
nav.main-nav a{
  color:rgba(247,244,236,.82);font-size:.94rem;font-weight:500;
  padding:6px 2px;border-bottom:2px solid transparent;
}
nav.main-nav a:hover,nav.main-nav a.active{color:var(--paper-light);border-color:var(--amber);}
.header-cta{display:flex;align-items:center;gap:14px;}
.phone-link{
  font-family:var(--font-mono);color:var(--paper-light);font-size:.95rem;
  display:flex;align-items:center;gap:8px;
}
.phone-link .dot{width:8px;height:8px;border-radius:50%;background:#5CD08A;flex:none;
  box-shadow:0 0 0 3px rgba(92,208,138,.25);}
.menu-toggle{
  display:none;background:none;border:1px solid rgba(255,255,255,.3);
  border-radius:3px;color:var(--paper-light);width:40px;height:40px;
  align-items:center;justify-content:center;font-size:1.2rem;cursor:pointer;
}

@media (max-width:860px){
  nav.main-nav{
    position:fixed;inset:60px 0 0 0;background:var(--ink);
    flex-direction:column;align-items:flex-start;padding:24px 24px;
    gap:4px;transform:translateX(100%);transition:transform .25s ease;
    overflow-y:auto;
  }
  nav.main-nav.open{transform:translateX(0);}
  nav.main-nav a{width:100%;padding:14px 4px;border-bottom:1px solid rgba(255,255,255,.08);font-size:1.05rem;}
  .header-cta .phone-text{display:none;}
  .menu-toggle{display:flex;}
}

/* sticky mobile call bar */
.mobile-callbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:60;
  background:var(--ink);border-top:1px solid rgba(255,255,255,.1);
  padding:10px 14px;gap:10px;
}
.mobile-callbar a{flex:1;text-align:center;}
@media (max-width:860px){
  .mobile-callbar{display:flex;}
  body{padding-bottom:64px;}
}

/* hero -------------------------------------------------------------------*/
.hero{
  background:var(--ink);color:var(--paper-light);
  position:relative;overflow:hidden;
  padding:64px 0 0;
}
.hero-grid{
  display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;
  max-width:var(--container);margin:0 auto;padding:0 20px 56px;
}
.hero h1{color:var(--white);}
.hero .lede{font-size:1.12rem;color:rgba(247,244,236,.78);max-width:46ch;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px 22px;font-family:var(--font-mono);font-size:.82rem;color:rgba(247,244,236,.7);}
.hero-badges span{display:flex;align-items:center;gap:6px;}
.hero-badges .tick{color:var(--amber);}
.hero-diagram{width:100%;height:auto;max-width:100%;}
.hero-diagram-wrap{max-width:420px;margin:0 auto;}
.hero-diagram-caption{
  font-family:var(--font-mono);font-size:.78rem;letter-spacing:.04em;
  color:rgba(247,244,236,.55);text-align:center;margin-top:14px;
}

@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;padding-bottom:36px;}
}

/* fold-line divider motif */
.fold-divider{
  height:26px;width:100%;
  background-image:repeating-linear-gradient(90deg, var(--line-strong) 0 10px, transparent 10px 22px);
  background-position:center;background-repeat:no-repeat;background-size:100% 1px;
  background-position-y:center;
}

/* cards --------------------------------------------------------------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
@media (max-width:800px){.grid-3,.grid-2{grid-template-columns:1fr;}}

.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 26px;
}
.card .step-num{
  font-family:var(--font-mono);color:var(--amber-dark);font-size:.85rem;
  border:1px solid var(--line-strong);border-radius:50%;
  width:32px;height:32px;display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;
}

.dark-section{background:var(--ink);color:var(--paper-light);}
.dark-section h2{color:var(--white);}
.dark-section .muted{color:rgba(247,244,236,.7);}

.brand-chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.brand-chip{
  font-family:var(--font-mono);font-size:.84rem;border:1px solid var(--line-strong);
  border-radius:20px;padding:8px 16px;color:var(--ink-70);
}

/* testimonials */
.quote-card{
  border-left:3px solid var(--amber);background:var(--paper);
  padding:22px 24px;border-radius:0 var(--radius) var(--radius) 0;
}
.quote-card p{font-style:italic;color:var(--ink-70);}
.quote-card .who{font-family:var(--font-mono);font-size:.82rem;color:var(--ink-45);font-style:normal;}

/* table */
.check-table{width:100%;border-collapse:collapse;}
.check-table td{padding:14px 4px;border-bottom:1px solid var(--line);font-size:.98rem;}
.check-table td:first-child{color:var(--amber-dark);font-weight:700;width:28px;}

/* faq */
.faq-item{border-bottom:1px solid var(--line);padding:20px 0;}
.faq-item summary{
  cursor:pointer;font-family:var(--font-display);font-weight:700;font-size:1.02rem;
  list-style:none;display:flex;justify-content:space-between;align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:'+';font-size:1.4rem;color:var(--amber-dark);font-weight:400;}
.faq-item[open] summary::after{content:'\2212';}
.faq-item p{margin-top:12px;color:var(--ink-70);}

/* form ------------------------------------------------------------------ */
.quote-form{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px;}
@media (max-width:600px){.form-row{grid-template-columns:1fr;}}
.field label{display:block;font-family:var(--font-mono);font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-45);margin-bottom:6px;}
.field input,.field textarea,.field select{
  width:100%;border:1px solid var(--line-strong);border-radius:var(--radius);
  padding:12px 14px;font-family:var(--font-body);font-size:.98rem;background:var(--paper-light);
}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:2px solid var(--amber);outline-offset:1px;border-color:var(--amber);
}
.field{margin-bottom:16px;}
.form-note{font-size:.85rem;color:var(--ink-45);margin-top:10px;}
#submit-status{color:var(--amber-dark);font-weight:600;min-height:1.2em;}

/* footer ------------------------------------------------------------------*/
footer.site-footer{background:var(--ink);color:rgba(247,244,236,.75);padding:52px 0 90px;}
@media (min-width:861px){footer.site-footer{padding-bottom:52px;}}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:32px;}
@media (max-width:700px){.footer-grid{grid-template-columns:1fr;}}
.footer-grid h4{color:var(--paper-light);font-size:.9rem;font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.06em;margin-bottom:14px;}
.footer-grid a{display:block;color:rgba(247,244,236,.7);padding:6px 0;font-size:.94rem;}
.footer-grid a:hover{color:var(--amber);}
.footer-bottom{margin-top:40px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);font-size:.82rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;color:rgba(247,244,236,.5);}

/* floating WhatsApp button */
.whatsapp-fab{
  position:fixed;right:20px;bottom:24px;z-index:70;
  width:58px;height:58px;border-radius:50%;
  background:#25D366;color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(0,0,0,.28);
  transition:transform .15s ease;
}
.whatsapp-fab:hover{transform:scale(1.06);}
.whatsapp-fab svg{width:30px;height:30px;}
@media (max-width:860px){
  .whatsapp-fab{right:14px;bottom:78px;width:52px;height:52px;}
  .whatsapp-fab svg{width:26px;height:26px;}
}
.text-center{text-align:center;}
.mt-0{margin-top:0;}
.max-w{max-width:62ch;}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);}

/* thank-you modal */
.thankyou-modal{
  display:none;position:fixed;inset:0;z-index:210;
  background:rgba(28,43,51,.72);
  align-items:center;justify-content:center;padding:20px;
}
.thankyou-modal.open{display:flex;}
.thankyou-box{
  background:var(--white);border-radius:var(--radius);
  max-width:420px;width:100%;padding:36px 30px;text-align:center;position:relative;
}
.thankyou-close{
  position:absolute;top:14px;right:14px;background:none;border:none;
  font-size:1.2rem;color:var(--ink-45);cursor:pointer;width:32px;height:32px;
}
.thankyou-icon{
  width:56px;height:56px;border-radius:50%;background:var(--amber);color:var(--ink);
  display:flex;align-items:center;justify-content:center;margin:0 auto 18px;
  font-size:1.6rem;font-weight:700;
}
.thankyou-box h3{margin-bottom:10px;}
.thankyou-box p{color:var(--ink-70);margin-bottom:6px;}

.gallery-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;
}
@media (max-width:800px){.gallery-grid{grid-template-columns:repeat(2,1fr);gap:10px;}}
.gallery-item{
  position:relative;border-radius:var(--radius);overflow:hidden;cursor:pointer;
  background:var(--ink);border:1px solid var(--line);
}
.gallery-item img{
  width:100%;height:230px;object-fit:cover;display:block;
  transition:transform .3s ease;
}
@media (max-width:800px){.gallery-item img{height:150px;}}
.gallery-item:hover img{transform:scale(1.05);}
.gallery-caption{
  position:absolute;left:0;right:0;bottom:0;
  background:linear-gradient(0deg, rgba(28,43,51,.88), rgba(28,43,51,0));
  color:var(--paper-light);padding:24px 12px 10px;
  font-family:var(--font-mono);font-size:.78rem;
  transform:translateY(4px);
}

.lightbox{
  display:none;position:fixed;inset:0;z-index:200;
  background:rgba(28,43,51,.94);
  align-items:center;justify-content:center;padding:24px;
}
.lightbox.open{display:flex;}
.lightbox-inner{max-width:900px;width:100%;text-align:center;}
.lightbox img{max-width:100%;max-height:78vh;border-radius:var(--radius);margin:0 auto;}
.lightbox-caption{color:var(--paper-light);font-family:var(--font-mono);font-size:.85rem;margin-top:14px;}
.lightbox-close, .lightbox-prev, .lightbox-next{
  position:fixed;background:none;border:1px solid rgba(255,255,255,.3);color:var(--paper-light);
  border-radius:50%;width:44px;height:44px;font-size:1.3rem;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
}
.lightbox-close{top:20px;right:20px;}
.lightbox-prev{left:20px;top:50%;transform:translateY(-50%);}
.lightbox-next{right:20px;top:50%;transform:translateY(-50%);}
@media (max-width:700px){
  .lightbox-prev{left:6px;}
  .lightbox-next{right:6px;}
}

/* homepage gallery teaser strip */
.gallery-strip{
  display:grid;grid-template-columns:repeat(6,1fr);gap:10px;
}
@media (max-width:800px){.gallery-strip{grid-template-columns:repeat(3,1fr);}}
.gallery-strip a{display:block;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);}
.gallery-strip img{width:100%;height:110px;object-fit:cover;display:block;transition:transform .3s ease;}
.gallery-strip a:hover img{transform:scale(1.06);}

/* skip link */
.skip-link{
  position:absolute;left:-999px;top:0;background:var(--amber);color:var(--ink);
  padding:10px 16px;z-index:100;font-family:var(--font-mono);
}
.skip-link:focus{left:10px;top:10px;}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .btn:hover{transform:none;}
}