:root{
  --ink:#101820;
  --ink-2:#1b2733;
  --paper:#f7f5f0;
  --amber:#f59e0b;
  --amber-dark:#d97706;
  --ice:#7dd3fc;
  --text:#22303d;
  --muted:#5b6b7a;
  --line:#e4e0d6;
  --radius:14px;
  --shadow:0 10px 30px rgba(16,24,32,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--text);background:var(--paper);line-height:1.6}
.wrap{max-width:1120px;margin:0 auto;padding:0 22px}
h1,h2,h3{line-height:1.15;color:var(--ink);margin:0 0 .5em}
h1{font-size:clamp(34px,5.2vw,58px);letter-spacing:-.02em}
h2{font-size:clamp(26px,3.4vw,38px);letter-spacing:-.01em}
h3{font-size:19px}
a{color:var(--amber-dark)}
.muted{color:var(--muted);font-size:14px}

.demo-banner{background:var(--ink);color:#e8e3d8;text-align:center;font-size:12.5px;padding:7px 14px;letter-spacing:.02em}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(247,245,240,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-row{display:flex;align-items:center;gap:26px;height:66px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.brand-mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--amber),var(--amber-dark));color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px}
.brand-name{font-weight:700;font-size:17px}
.brand-name em{font-style:normal;color:var(--muted);font-weight:500}
.nav{display:flex;gap:22px;margin-left:auto}
.nav a{color:var(--text);text-decoration:none;font-size:15px;font-weight:500}
.nav a:hover{color:var(--amber-dark)}
.phone-cta{background:var(--ink);color:#fff;text-decoration:none;font-weight:600;font-size:14.5px;padding:10px 18px;border-radius:999px}
.phone-cta:hover{background:var(--ink-2)}

/* Hero */
.hero{position:relative;min-height:88vh;display:flex;align-items:flex-end;overflow:hidden;background:var(--ink)}
.hero-bg{position:absolute;inset:0;background-image:url("images/hero.jpg");background-size:cover;background-position:center 30%}
.hero-scrim{position:absolute;inset:0;background:linear-gradient(to top,rgba(10,14,18,.92) 8%,rgba(10,14,18,.45) 45%,rgba(10,14,18,.15) 75%)}
.hero-content{position:relative;padding:120px 22px 84px;color:#fff;max-width:1120px;margin:0 auto;width:100%}
.hero-content h1{color:#fff}
.hero-kicker{color:var(--ice);font-weight:600;letter-spacing:.14em;text-transform:uppercase;font-size:13px;margin:0 0 14px}
.hero-sub{max-width:560px;font-size:18px;color:#e9eef3}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:28px 0 30px}
.hero-badges{display:flex;gap:10px;flex-wrap:wrap;list-style:none;padding:0;margin:0}
.hero-badges li{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);color:#fff;font-size:13.5px;padding:7px 14px;border-radius:999px}

/* Buttons */
.btn{display:inline-block;text-decoration:none;font-weight:700;font-size:16px;padding:14px 26px;border-radius:12px;border:0;cursor:pointer;transition:transform .08s ease, background .15s ease}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--amber);color:#1a1205}
.btn-primary:hover{background:#f7b02e}
.btn-ghost{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.35)}
.btn-ghost:hover{background:rgba(255,255,255,.2)}
.btn-emergency{color:#ffd9a8}
.btn-block{width:100%;margin-top:8px}

/* Trust strip */
.trust-strip{background:var(--ink);color:#fff;padding:26px 0}
.trust-row{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;text-align:center}
.trust-row strong{display:block;font-size:26px;color:var(--amber)}
.trust-row span{font-size:13.5px;color:#c7d2dc}

/* Sections */
.section{padding:88px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-sub{color:var(--muted);max-width:640px;font-size:17px;margin:0 0 36px}

.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:0 2px 10px rgba(16,24,32,.04)}
.card p{margin:0;color:var(--muted);font-size:15px}
.card-img{padding:0;overflow:hidden;display:flex;flex-direction:column}
.card-img h3{padding:20px 24px 0}
.card-img p{padding:0 24px 26px}
.card-photo{height:190px;background-size:cover;background-position:center}
.card-photo-install{background-image:url("images/install.jpg")}
.card-photo-maint{background-image:url("images/maintenance.jpg")}

/* Split + plan */
.split{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start}
.check-list{list-style:none;padding:0;margin:0 0 28px;display:grid;gap:10px}
.check-list li{padding-left:30px;position:relative}
.check-list li::before{content:"";position:absolute;left:0;top:7px;width:16px;height:16px;border-radius:50%;background:var(--amber);box-shadow:inset 0 0 0 4px #fff,0 0 0 1.5px var(--amber)}
.plan-card{background:var(--ink);color:#fff;border-radius:var(--radius);padding:34px;box-shadow:var(--shadow)}
.plan-card .check-list li::before{box-shadow:inset 0 0 0 4px var(--ink),0 0 0 1.5px var(--amber)}
.plan-price{font-size:22px;margin:0}
.plan-price span{font-size:56px;font-weight:800;color:var(--amber);letter-spacing:-.02em}
.plan-note{color:#c7d2dc;margin:0 0 22px}

/* Chips */
.chip-row{list-style:none;display:flex;flex-wrap:wrap;gap:10px;padding:0;margin:0}
.chip-row li{background:#fff;border:1px solid var(--line);border-radius:999px;padding:9px 18px;font-weight:600;font-size:14.5px}

/* Contact + form */
.contact-card{background:var(--ink);color:#fff;border-radius:var(--radius);padding:28px;margin-top:10px}
.contact-card p{margin:0 0 6px;color:#c7d2dc}
.phone-big{font-size:30px;font-weight:800;color:var(--amber);text-decoration:none;letter-spacing:-.01em}
.schedule-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.form-row{margin-bottom:16px}
.form-row label{display:block;font-weight:600;font-size:14px;margin-bottom:6px;color:var(--ink)}
.form-row input,.form-row select,.form-row textarea{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;font-size:15px;font-family:inherit;background:#fdfcfa;color:var(--text)}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{outline:2px solid var(--amber);outline-offset:1px;border-color:var(--amber)}
.consent-block{background:#faf7f0;border:1px solid var(--line);border-radius:10px;padding:16px;margin:6px 0 14px}
.consent-check{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;cursor:pointer}
.consent-check input{width:18px;height:18px;margin-top:2px;accent-color:var(--amber-dark)}
.consent-fine{font-size:12px;color:var(--muted);margin:8px 0 0}
.form-status{font-size:14.5px;font-weight:600;margin:12px 0 0;min-height:20px}
.form-status.ok{color:#15803d}
.form-status.err{color:#b91c1c}
.form-status.pend{color:var(--amber-dark)}

/* Footer */
.site-footer{background:var(--ink);color:#fff;padding:44px 0 30px;margin-top:0}
.footer-row{display:flex;justify-content:space-between;align-items:flex-start;gap:24px;flex-wrap:wrap}
.footer-brand{font-weight:700;font-size:18px;margin:0 0 4px}
.footer-brand em{font-style:normal;color:#8fa1b0;font-weight:500}
.footer-links{display:flex;gap:18px;flex-wrap:wrap}
.footer-links a{color:#c7d2dc;text-decoration:none;font-size:14.5px}
.footer-links a:hover{color:var(--amber)}
.demo-fine{font-size:12px;color:#7e8f9d;margin-top:26px;border-top:1px solid rgba(255,255,255,.12);padding-top:18px}

@media (max-width:900px){
  .card-grid{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr}
  .trust-row{grid-template-columns:repeat(2,1fr)}
  .nav{display:none}
}
@media (max-width:560px){
  .card-grid{grid-template-columns:1fr}
  .header-row{gap:12px}
  .phone-cta{margin-left:auto;font-size:13px;padding:8px 14px}
}