:root {
  --yellow: #f5b21a;
  --yellow-d: #e0a009;
  --dark: #1a1a1a;
  --gray: #f3f3f1;
  --ink: #1a1a1a;
  --muted: #6c6c64;
  --body: 'Inter', system-ui, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}
* { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; scroll-padding-top:120px; }
body { font-family:var(--body); background:#fff; color:var(--ink); line-height:1.6; -webkit-font-smoothing:antialiased; overflow-x:hidden; }
a { color:inherit; text-decoration:none; }
ul { list-style:none; }
img { display:block; max-width:100%; }
.hl { color:var(--yellow-d); }
.ico { width:1.4em; height:1.4em; display:inline-block; vertical-align:middle; flex:none; }
.skip-link { position:absolute; left:-999px; }
.skip-link:focus { left:8px; top:8px; background:var(--dark); color:#fff; padding:8px 14px; z-index:999; }
:focus-visible { outline:2px solid var(--yellow-d); outline-offset:3px; }
.js .reveal { opacity:0; transform:translateY(26px); transition:opacity .7s var(--ease), transform .7s var(--ease); }
.js .reveal.is-visible { opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce){ html{scroll-behavior:auto} .js .reveal{opacity:1!important;transform:none!important} }

.kicker { display:inline-block; font-size:.78rem; font-weight:700; text-transform:uppercase; letter-spacing:.08em; color:var(--yellow-d); margin-bottom:1rem; }
.kicker.dark { color:var(--yellow-d); }
.btn { display:inline-flex; align-items:center; justify-content:center; gap:.4rem; padding:.85rem 1.7rem; border-radius:.5rem; font-weight:700; font-size:.9rem; border:1px solid transparent; cursor:pointer; transition:all .25s var(--ease); }
.btn-yellow { background:var(--yellow); color:var(--dark); border-color:var(--yellow); }
@media (hover: hover) { .btn-yellow:hover { background:var(--yellow-d); transform:translateY(-2px); } }
.btn-dark { background:var(--dark); color:#fff; border-color:var(--dark); }
@media (hover: hover) { .btn-dark:hover { background:#000; } }
.btn-outline { background:transparent; color:#fff; border-color:rgba(255,255,255,.5); }
@media (hover: hover) { .btn-outline:hover { background:rgba(255,255,255,.12); border-color:#fff; } }
.full { width:100%; }

/* Topbar */
.topbar { background:var(--dark); color:#cfcfc8; font-size:.8rem; }
.top-inner { max-width:1280px; margin:0 auto; padding:.5rem 2rem; display:flex; justify-content:space-between; gap:1rem; flex-wrap:wrap; }
.top-inner span { display:inline-flex; align-items:center; gap:.4rem; }
.top-inner .ico { width:1.1em; height:1.1em; }

/* Header */
#siteHeader { position:sticky; top:0; z-index:100; background:#fff; border-bottom:1px solid #eee; transition:box-shadow .3s; }
#siteHeader.scrolled { box-shadow:0 6px 20px rgba(0,0,0,.08); }
.head-inner { max-width:1280px; margin:0 auto; padding:1rem 2rem; display:flex; align-items:center; gap:1.5rem; }
.brand { display:inline-flex; align-items:center; gap:.6rem; font-weight:800; font-size:1.25rem; }
.logo-box { width:34px; height:34px; background:var(--yellow); color:var(--dark); border-radius:.5rem; display:inline-flex; align-items:center; justify-content:center; font-weight:900; }
.nav-links { display:flex; gap:1.8rem; margin:0 auto; }
.nav-links a { font-size:.92rem; font-weight:500; }
@media (hover: hover) { .nav-links a:hover { color:var(--yellow-d); } }
.mobile-menu-btn { display:none; background:none; border:none; cursor:pointer; width:40px; height:40px; align-items:center; justify-content:center; }
.burger, .burger::before, .burger::after { content:""; display:block; width:24px; height:2px; background:var(--ink); transition:transform .3s var(--ease), opacity .2s; }
.burger { position:relative; } .burger::before { position:absolute; top:-7px; } .burger::after { position:absolute; top:7px; }
#siteHeader.nav-open .burger { background:transparent; }
#siteHeader.nav-open .burger::before { transform:translateY(7px) rotate(45deg); }
#siteHeader.nav-open .burger::after { transform:translateY(-7px) rotate(-45deg); }

/* Hero */
.hero { position:relative; min-height:78vh; display:flex; align-items:center; color:#fff;
  background:var(--dark); }
.hero-media { position:absolute; inset:0; }
.hero-media img { width:100%; height:100%; object-fit:cover; opacity:.45; }
.hero-content { position:relative; z-index:2; max-width:1280px; width:100%; margin:0 auto; padding:4rem 2rem; }
.hero-content h1 { font-size:clamp(2.4rem,6vw,4.6rem); font-weight:800; line-height:1.05; margin-bottom:1.2rem; }
.hero-content p { max-width:480px; opacity:.9; margin-bottom:2rem; }
.hero-cta { display:flex; gap:.8rem; flex-wrap:wrap; margin-bottom:2.5rem; }
.hero-rating { display:flex; align-items:center; gap:1rem; flex-wrap:wrap; }
.stars { color:var(--yellow); letter-spacing:.1em; }
.avatars { display:flex; }
.avatars span { width:34px; height:34px; border-radius:50%; background:var(--yellow); color:var(--dark); border:2px solid var(--dark); display:flex; align-items:center; justify-content:center; font-size:.72rem; font-weight:700; margin-left:-8px; }
.avatars span:first-child { margin-left:0; }
.rating-txt { font-size:.9rem; }

/* Install */
.install { max-width:1280px; margin:0 auto; padding:5rem 2rem; display:grid; grid-template-columns:1fr 1.1fr; gap:4rem; align-items:center; }
.install-media { position:relative; }
.install-media img { width:100%; border-radius:1rem; aspect-ratio:4/5; object-fit:cover; }
.stat-badge { position:absolute; background:#fff; border-radius:.8rem; padding:1rem 1.3rem; box-shadow:0 12px 30px rgba(0,0,0,.14); }
.stat-badge strong { display:block; font-size:1.6rem; font-weight:800; color:var(--yellow-d); }
.stat-badge span { font-size:.78rem; color:var(--muted); }
.stat-badge.b1 { top:1.5rem; right:-1rem; } .stat-badge.b2 { bottom:1.5rem; left:-1rem; }
.install-text h2 { font-size:clamp(1.8rem,3.5vw,2.6rem); font-weight:800; margin-bottom:1.6rem; }
.feat-list { display:flex; flex-direction:column; gap:1.2rem; margin-bottom:1.8rem; }
.feat-list li { display:flex; gap:1rem; }
.fi { font-size:1.4rem; flex-shrink:0; width:46px; height:46px; background:var(--gray); border-radius:.6rem; display:flex; align-items:center; justify-content:center; color:var(--yellow-d); }
.fi .ico { width:24px; height:24px; }
.feat-list strong { display:block; font-size:1.02rem; }
.feat-list p { font-size:.9rem; color:var(--muted); }
.call-row { display:inline-flex; align-items:center; gap:.6rem; font-weight:700; }
.call-ic { width:40px; height:40px; background:var(--yellow); border-radius:50%; display:inline-flex; align-items:center; justify-content:center; color:var(--dark); }
.call-ic .ico { width:22px; height:22px; }

/* Services */
.services { background:var(--gray); padding:5rem 2rem; }
.serv-head { max-width:1280px; margin:0 auto 2.5rem; text-align:center; }
.serv-head h2 { font-size:clamp(1.8rem,4vw,2.8rem); font-weight:800; }
.serv-grid { max-width:1280px; margin:0 auto; display:grid; grid-template-columns:repeat(4,1fr); gap:1.5rem; }
.serv-card { background:#fff; border-radius:1rem; overflow:hidden; transition:transform .3s var(--ease), box-shadow .3s; }
@media (hover: hover) { .serv-card:hover { transform:translateY(-6px); box-shadow:0 18px 40px rgba(0,0,0,.1); } }
.serv-card img { width:100%; height:180px; object-fit:cover; }
.serv-card h3 { font-size:1.15rem; font-weight:700; margin:1.1rem 1.3rem .4rem; }
.serv-card p { font-size:.9rem; color:var(--muted); margin:0 1.3rem 1.4rem; }
.serv-actions { max-width:1280px; margin:2.5rem auto 0; display:flex; gap:1rem; justify-content:center; flex-wrap:wrap; }

/* Why */
.why { max-width:1280px; margin:0 auto; padding:5rem 2rem; }
.why-grid { display:grid; grid-template-columns:1fr 1fr; gap:3rem; }
.why-form { background:var(--dark); color:#fff; border-radius:1.2rem; padding:2.5rem; }
.why-form h2 { font-size:1.8rem; font-weight:800; margin-bottom:1.5rem; }
.why-form form { display:flex; flex-direction:column; gap:.9rem; }
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:.9rem; }
.why-form input, .why-form select, .why-form textarea { padding:.8rem 1rem; border-radius:.5rem; border:1px solid #3a3a3a; background:#242424; color:#fff; font-family:var(--body); font-size:.92rem; min-width:0; width:100%; }
.why-form input::placeholder, .why-form textarea::placeholder { color:#8a8a82; }
.why-form input:focus, .why-form select:focus, .why-form textarea:focus { outline:none; border-color:var(--yellow); }
.form-note { background:rgba(245,178,26,.18); border:1px solid var(--yellow); border-radius:.5rem; padding:.7rem .9rem; font-size:.88rem; }
.why-points h2 { font-size:clamp(1.8rem,3.5vw,2.4rem); font-weight:800; margin-bottom:1.8rem; }
.point { display:flex; gap:1rem; margin-bottom:1.4rem; }
.p-ic { font-size:1.3rem; width:50px; height:50px; flex-shrink:0; background:var(--yellow); border-radius:.6rem; display:flex; align-items:center; justify-content:center; color:var(--dark); }
.p-ic .ico { width:24px; height:24px; }
.point strong { display:block; font-size:1.05rem; }
.point p { font-size:.9rem; color:var(--muted); }

/* CTA */
.cta { padding:2rem 2rem 5rem; }
.cta-inner { max-width:1280px; margin:0 auto; background:var(--dark); color:#fff; border-radius:1.2rem; padding:4rem 3rem; text-align:center; }
.cta-inner h2 { font-size:clamp(2rem,4.5vw,3.2rem); font-weight:800; margin-bottom:1rem; }
.cta-stars { color:var(--yellow); font-size:1.1rem; letter-spacing:.1em; margin-bottom:2rem; }
.cta-stars span { color:#cfcfc8; font-size:.9rem; letter-spacing:0; }

/* Footer */
.site-footer { background:#111; color:rgba(255,255,255,.8); padding:3rem 2rem; }
.foot-inner { max-width:1280px; margin:0 auto; display:flex; justify-content:space-between; align-items:center; gap:1.5rem; flex-wrap:wrap; }
.foot-inner .brand { color:#fff; }
.foot-inner > div:first-child p { color:#8a8a82; font-size:.85rem; margin-top:.4rem; }
.foot-contact { display:flex; flex-direction:column; gap:.3rem; font-weight:700; }
@media (hover: hover) { .foot-contact a:hover { color:var(--yellow); } }
.foot-legal { display:flex; gap:1.2rem; align-items:center; font-size:.85rem; color:#8a8a82; flex-wrap:wrap; }
@media (hover: hover) { .foot-legal a:hover { color:#fff; } }

@media (max-width:900px){
  .install, .why-grid { grid-template-columns:1fr; gap:2.5rem; }
  .stat-badge.b1 { right:1rem; } .stat-badge.b2 { left:1rem; }
  .serv-grid { grid-template-columns:1fr 1fr; }
}
@media (max-width:600px){
  .top-inner { justify-content:center; }
  .head-inner { gap:1rem; }
  .nav-links { display:none; position:absolute; top:100%; left:0; width:100%; flex-direction:column; gap:0; background:#fff; padding:.5rem 2rem 1rem; margin:0; border-bottom:1px solid #eee; }
  #siteHeader.nav-open .nav-links { display:flex; }
  .nav-links a { padding:.8rem 0; border-bottom:1px solid #f0f0f0; }
  .btn-yellow.header, .head-inner > .btn-yellow { display:none; }
  .mobile-menu-btn { display:flex; }
  .hero { min-height: 70svh; }
  .hero-content, .install, .services, .why { padding: 2.5rem 1.5rem; }
  .serv-grid { grid-template-columns:1fr; }
  .form-row { grid-template-columns:1fr; }
  .cta-inner { padding:2.5rem 1.5rem; }
  .foot-inner { flex-direction:column; align-items:flex-start; }
}