/* =========================================================
   Audioamp — automação e sonorização de ambientes
   Design tokens
   ========================================================= */
:root{
  --bg:        #14171C;
  --bg-alt:    #191D24;
  --panel:     #1E232B;
  --panel-2:   #242A33;
  --line:      #333A45;
  --line-soft: #262C35;
  --ink:       #F4F1EA;
  --ink-dim:   #9BA3AF;
  --ink-faint: #6B7280;
  --signal:    #E8A33D;   /* som / ação comercial */
  --signal-ink:#241802;
  --signal-soft: rgba(232,163,61,.14);
  --cold:      #4FA7A0;   /* automação / suporte */
  --cold-soft: rgba(79,167,160,.14);
  --radius:    16px;
  --radius-sm: 10px;
  --maxw:      1180px;
  --grid-line: rgba(244,241,234,.045);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'IBM Plex Sans', system-ui, sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img,svg{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ margin:0; font-family:'Space Grotesk', 'IBM Plex Sans', sans-serif; font-weight:600; letter-spacing:-0.01em; }
p{ margin:0; }
.mono{ font-family:'IBM Plex Mono', monospace; }

.eyebrow{
  font-family:'IBM Plex Mono', monospace;
  font-size:.72rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--signal);
  display:flex; align-items:center; gap:.55em;
}
.eyebrow.cold{ color:var(--cold); }
.eyebrow::before{
  content:"";
  width:18px; height:1px;
  background:currentColor;
  display:inline-block;
}

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

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

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

/* blueprint grid texture, used as a recurring motif */
.blueprint{
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size:34px 34px;
}

/* =========================================================
   NAV
   ========================================================= */
.site-nav{
  position:sticky; top:0; z-index:50;
  background:rgba(20,23,28,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-soft);
}
.site-nav .wrap{
  height:76px;
  display:flex; align-items:center; justify-content:space-between;
}
.brand{ display:flex; align-items:center; gap:10px; }
.brand .brand-logo{ height:68px; width:auto; display:block; }

.nav-links{ display:flex; align-items:center; gap:34px; }
.nav-links a{
  font-size:.92rem; color:var(--ink-dim); font-weight:500;
  padding:8px 2px; border-bottom:1px solid transparent;
  transition:color .15s ease, border-color .15s ease;
}
.nav-links a:hover, .nav-links a.active{ color:var(--ink); border-color:var(--signal); }

.nav-cta{
  display:inline-flex; align-items:center; gap:8px;
  background:var(--signal); color:var(--signal-ink);
  font-weight:600; font-size:.86rem;
  padding:10px 18px; border-radius:100px;
}
.nav-toggle{ display:none; background:none; border:1px solid var(--line); color:var(--ink); width:42px; height:42px; border-radius:10px; cursor:pointer; }
.nav-toggle span{ display:block; width:18px; height:2px; background:var(--ink); margin:3px auto; }

@media (max-width:860px){
  .nav-links{
    position:absolute; top:76px; left:0; right:0;
    background:var(--bg-alt); border-bottom:1px solid var(--line-soft);
    flex-direction:column; align-items:flex-start; gap:0;
    padding:8px 28px 18px;
    display:none;
  }
  .nav-links.open{ display:flex; }
  .nav-links a{ width:100%; padding:12px 0; border-bottom:1px solid var(--line-soft); }
  .nav-cta{ margin-top:10px; }
  .nav-toggle{ display:block; }
}

/* =========================================================
   BUTTONS
   ========================================================= */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  font-family:'IBM Plex Sans',sans-serif; font-weight:600; font-size:.95rem;
  padding:14px 26px; border-radius:100px; border:1px solid transparent;
  cursor:pointer; transition:transform .15s ease, background .15s ease, border-color .15s ease;
}
.btn:hover{ transform:translateY(-2px); }
.btn-signal{ background:var(--signal); color:var(--signal-ink); }
.btn-signal:hover{ background:#f0ae4d; }
.btn-cold{ background:var(--cold); color:#06201e; }
.btn-cold:hover{ background:#5cb8b0; }
.btn-outline{ background:transparent; border-color:var(--line); color:var(--ink); }
.btn-outline:hover{ border-color:var(--ink-dim); }
.btn-ghost{ background:transparent; color:var(--ink-dim); padding:14px 4px; }
.btn-ghost:hover{ color:var(--ink); }

/* =========================================================
   HERO
   ========================================================= */
.hero{
  position:relative; overflow:hidden;
  padding:76px 0 90px;
  border-bottom:1px solid var(--line-soft);
}
.hero .wrap{ display:grid; grid-template-columns:1.05fr .95fr; gap:56px; align-items:center; }
.hero h1{ font-size:clamp(2.3rem, 4.4vw, 3.6rem); line-height:1.06; margin:18px 0 22px; }
.hero h1 em{ font-style:normal; color:var(--signal); }
.hero p.lead{ color:var(--ink-dim); font-size:1.08rem; max-width:46ch; margin-bottom:34px; }
.hero-ctas{ display:flex; gap:14px; flex-wrap:wrap; }

/* Zone map — signature element */
.zone-map{ position:relative; }
.hub-node{
  border:1px solid var(--cold); background:var(--cold-soft);
  border-radius:100px; padding:12px 22px;
  display:flex; align-items:center; gap:10px; justify-content:center;
  font-family:'IBM Plex Mono',monospace; font-size:.74rem; letter-spacing:.08em; color:var(--cold);
  margin:0 auto 0; width:fit-content; position:relative;
}
.hub-node .dot{ width:8px; height:8px; border-radius:50%; background:var(--cold); position:relative; }
.hub-node .dot::after{
  content:""; position:absolute; inset:-6px; border-radius:50%; border:1px solid var(--cold);
  animation:ping 2.2s ease-out infinite;
}
@keyframes ping{ 0%{ transform:scale(.6); opacity:.9; } 100%{ transform:scale(2.1); opacity:0; } }

.connectors{ display:flex; gap:14px; margin:0; height:26px; }
.connectors span{ flex:1; display:flex; justify-content:center; }
.connectors span::before{ content:""; width:1px; height:100%; border-left:1px dashed var(--line); }

.zones-grid{ display:flex; gap:14px; }
.zone-card{
  flex:1; min-width:0;
  background:var(--panel); border:1px solid var(--line-soft); border-radius:var(--radius-sm);
  padding:14px 12px 12px;
}
.zone-card .zone-label{ font-family:'IBM Plex Mono',monospace; font-size:.62rem; letter-spacing:.08em; color:var(--ink-faint); display:block; margin-bottom:2px; }
.zone-card .zone-name{ font-size:.82rem; font-weight:600; color:var(--ink); display:block; margin-bottom:10px; }
.wave{ width:100%; height:26px; overflow:hidden; }
.wave svg{ width:200%; height:100%; }
.wave .wave-line{ fill:none; stroke:var(--signal); stroke-width:2.4; stroke-linecap:round; opacity:.85; }

@media (max-width:900px){
  .hero .wrap{ grid-template-columns:1fr; }
  .zones-grid{ flex-wrap:wrap; }
  .zone-card{ flex:1 1 calc(50% - 7px); }
  .connectors{ display:none; }
}
@media (max-width:520px){
  .zone-card{ flex:1 1 100%; }
}

/* =========================================================
   SECTION HEADS
   ========================================================= */
.section{ padding:88px 0; }
.section-head{ max-width:640px; margin-bottom:48px; }
.section-head h2{ font-size:clamp(1.6rem,2.6vw,2.3rem); margin-top:14px; }
.section-head p{ color:var(--ink-dim); margin-top:14px; font-size:1.02rem; }
.section-alt{ background:var(--bg-alt); border-top:1px solid var(--line-soft); border-bottom:1px solid var(--line-soft); }

/* =========================================================
   PRODUCT GRID
   ========================================================= */
.product-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.product-card{
  background:var(--panel); border:1px solid var(--line-soft); border-radius:var(--radius);
  padding:26px 24px 24px; display:flex; flex-direction:column; gap:16px;
  transition:border-color .15s ease, transform .15s ease;
}
.product-card:hover{ border-color:var(--line); transform:translateY(-3px); }
.icon-tile{
  width:56px; height:56px; border-radius:12px;
  background:var(--bg-alt); border:1px solid var(--line-soft);
  display:flex; align-items:center; justify-content:center;
}
.icon-tile svg{ width:28px; height:28px; }
.icon-tile.cold{ }
.icon-tile svg *{ stroke:var(--signal); }
.icon-tile.cold svg *{ stroke:var(--cold); }
.product-card h3{ font-size:1.08rem; }
.product-card .desc{ color:var(--ink-dim); font-size:.92rem; flex:1; }
.product-card .tag-row{ display:flex; gap:8px; flex-wrap:wrap; }
.tag{
  font-family:'IBM Plex Mono',monospace; font-size:.64rem; letter-spacing:.05em;
  color:var(--ink-faint); border:1px solid var(--line-soft); border-radius:100px; padding:4px 10px;
}
.card-link{ font-size:.86rem; font-weight:600; color:var(--signal); display:inline-flex; align-items:center; gap:6px; }
.card-link.cold{ color:var(--cold); }

@media (max-width:920px){ .product-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:600px){ .product-grid{ grid-template-columns:1fr; } }

/* =========================================================
   CTA BAND (loja / suporte)
   ========================================================= */
.cta-band{ display:grid; grid-template-columns:1fr 1fr; gap:22px; }
.cta-panel{
  border-radius:var(--radius); padding:38px 34px;
  border:1px solid var(--line-soft);
  display:flex; flex-direction:column; gap:16px;
}
.cta-panel.warm{ background:linear-gradient(160deg, var(--signal-soft), transparent 70%); }
.cta-panel.cool{ background:linear-gradient(160deg, var(--cold-soft), transparent 70%); }
.cta-panel h3{ font-size:1.5rem; }
.cta-panel p{ color:var(--ink-dim); max-width:38ch; }
@media (max-width:760px){ .cta-band{ grid-template-columns:1fr; } }

/* =========================================================
   QR / WHATSAPP PANEL
   ========================================================= */
.qr-panel{
  display:grid; grid-template-columns:auto 1fr; gap:36px; align-items:center;
  background:var(--panel); border:1px solid var(--line-soft); border-radius:var(--radius);
  padding:38px;
}
.qr-box{
  background:#fff; padding:14px; border-radius:12px; width:172px; height:172px;
  display:flex; align-items:center; justify-content:center;
}
.qr-box canvas, .qr-box img{ width:144px!important; height:144px!important; }
.qr-text h3{ font-size:1.3rem; margin-bottom:10px; }
.qr-text p{ color:var(--ink-dim); margin-bottom:18px; max-width:44ch; }
.qr-number{ font-family:'IBM Plex Mono',monospace; color:var(--ink-dim); font-size:.85rem; margin-top:14px; display:block; }
@media (max-width:640px){ .qr-panel{ grid-template-columns:1fr; text-align:center; } .qr-box{ margin:0 auto; } }

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer{ border-top:1px solid var(--line-soft); padding:52px 0 34px; }
.footer-grid{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:32px; margin-bottom:36px; }
.footer-brand p{ color:var(--ink-faint); font-size:.88rem; max-width:34ch; margin-top:12px; }
.footer-cols{ display:flex; gap:64px; flex-wrap:wrap; }
.footer-col h4{ font-size:.76rem; letter-spacing:.08em; text-transform:uppercase; color:var(--ink-faint); font-family:'IBM Plex Mono',monospace; margin-bottom:14px; font-weight:500; }
.footer-col a, .footer-col span{ display:block; color:var(--ink-dim); font-size:.9rem; margin-bottom:10px; }
.footer-col a:hover{ color:var(--ink); }
.footer-bottom{ border-top:1px solid var(--line-soft); padding-top:22px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; font-size:.8rem; color:var(--ink-faint); }

/* =========================================================
   LOJA (store) page
   ========================================================= */
.page-hero{ padding:60px 0 44px; border-bottom:1px solid var(--line-soft); }
.page-hero h1{ font-size:clamp(2rem,4vw,2.8rem); margin-top:14px; }
.page-hero p{ color:var(--ink-dim); max-width:56ch; margin-top:14px; }

.filter-row{ display:flex; gap:10px; margin-bottom:34px; flex-wrap:wrap; }
.filter-btn{
  font-family:'IBM Plex Mono',monospace; font-size:.78rem; letter-spacing:.03em;
  padding:9px 16px; border-radius:100px; border:1px solid var(--line-soft); color:var(--ink-dim);
  background:transparent; cursor:pointer; transition:all .15s ease;
}
.filter-btn.active, .filter-btn:hover{ border-color:var(--signal); color:var(--ink); background:var(--signal-soft); }

.shop-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.shop-card{
  background:var(--panel); border:1px solid var(--line-soft); border-radius:var(--radius);
  padding:26px 24px; display:flex; flex-direction:column; gap:14px;
}
.shop-card .top-row{ display:flex; justify-content:space-between; align-items:flex-start; gap:12px; }
.shop-card .price{ font-family:'IBM Plex Mono',monospace; color:var(--signal); font-size:1.05rem; white-space:nowrap; }
.shop-card .specs{ margin:6px 0 4px; }
.shop-card .specs li{ font-size:.82rem; color:var(--ink-dim); padding:5px 0; border-top:1px solid var(--line-soft); display:flex; justify-content:space-between; }
.shop-card .specs li span:first-child{ color:var(--ink-faint); }
.shop-card .buy-btn{ margin-top:auto; }
@media (max-width:920px){ .shop-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:600px){ .shop-grid{ grid-template-columns:1fr; } }

/* =========================================================
   SUPORTE page
   ========================================================= */
.specs-block{ border-top:1px solid var(--line-soft); }
.specs-block li{ font-size:.94rem; color:var(--ink-dim); padding:14px 2px; border-bottom:1px solid var(--line-soft); display:flex; justify-content:space-between; gap:16px; }
.specs-block li span:first-child{ color:var(--ink-faint); }
.specs-block li span:last-child{ color:var(--ink); font-weight:500; text-align:right; }

.manual-list{ display:flex; flex-direction:column; border-top:1px solid var(--line-soft); }
.manual-row{
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  padding:20px 4px; border-bottom:1px solid var(--line-soft);
}
.manual-row .info{ display:flex; align-items:center; gap:16px; }
.manual-row .file-tag{
  font-family:'IBM Plex Mono',monospace; font-size:.66rem; letter-spacing:.05em;
  background:var(--panel-2); border:1px solid var(--line-soft); color:var(--ink-dim);
  padding:5px 10px; border-radius:6px; flex-shrink:0;
}
.manual-row h4{ font-size:.98rem; font-weight:600; }
.manual-row .meta{ font-size:.8rem; color:var(--ink-faint); margin-top:3px; }
.manual-row .dl{ display:inline-flex; align-items:center; gap:8px; font-size:.86rem; font-weight:600; color:var(--ink); border:1px solid var(--line-soft); padding:9px 16px; border-radius:100px; white-space:nowrap; }
.manual-row .dl:hover{ border-color:var(--cold); color:var(--cold); }

.faq-item{ border-bottom:1px solid var(--line-soft); }
.faq-q{
  width:100%; text-align:left; background:none; border:0; color:var(--ink);
  padding:22px 4px; font-family:'Space Grotesk',sans-serif; font-size:1.02rem; font-weight:600;
  display:flex; justify-content:space-between; align-items:center; gap:16px; cursor:pointer;
}
.faq-q .plus{ font-family:'IBM Plex Mono',monospace; color:var(--cold); font-size:1.2rem; transition:transform .2s ease; flex-shrink:0; }
.faq-item.open .faq-q .plus{ transform:rotate(45deg); }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .25s ease; }
.faq-a p{ color:var(--ink-dim); padding:0 4px 22px; max-width:64ch; }
.faq-item.open .faq-a{ max-height:240px; }

.hours-panel{
  display:flex; gap:40px; flex-wrap:wrap;
  background:var(--panel); border:1px solid var(--line-soft); border-radius:var(--radius);
  padding:26px 30px; margin-top:40px;
}
.hours-panel .item h4{ font-family:'IBM Plex Mono',monospace; font-size:.7rem; letter-spacing:.06em; color:var(--ink-faint); text-transform:uppercase; margin-bottom:8px; font-weight:500; }
.hours-panel .item p{ font-size:.95rem; }

/* toast */
.toast{
  position:fixed; left:50%; bottom:28px; transform:translate(-50%,20px);
  background:var(--panel-2); border:1px solid var(--line); color:var(--ink);
  padding:14px 22px; border-radius:100px; font-size:.88rem;
  opacity:0; pointer-events:none; transition:all .25s ease; z-index:100;
  box-shadow:0 12px 30px rgba(0,0,0,.35);
}
.toast.show{ opacity:1; transform:translate(-50%,0); }