/* Coastal Air — demo HVAC one-pager.
   Brand colors match the widget config (clients.js) so the site + chat feel unified.
   To rebrand for a new client, change --brand / --accent and the text in index.html. */
:root{
  --brand:#0B6FB8;
  --brand-dark:#085287;
  --accent:#F47B20;
  --ink:#16242e;
  --muted:#5b6b76;
  --line:#e4e8ec;
  --bg:#ffffff;
  --bg-soft:#f4f7fa;
  --radius:14px;
  --wrap:1100px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);line-height:1.6;background:var(--bg)}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}
a{color:inherit;text-decoration:none}
img{max-width:100%}

/* Header */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--brand)}
.brand .dot{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--brand),var(--accent));display:inline-block}
.nav-links{display:flex;gap:26px;align-items:center}
.nav-links a{color:var(--muted);font-weight:600;font-size:15px}
.nav-links a:hover{color:var(--brand)}
.btn{display:inline-block;border-radius:999px;padding:12px 22px;font-weight:700;font-size:15px;cursor:pointer;border:none;transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(244,123,32,.35)}
.btn-ghost{background:#fff;color:var(--brand);border:2px solid var(--brand)}
.btn-call{background:var(--brand);color:#fff}
@media(max-width:760px){.nav-links{display:none}}

/* Hero */
.hero{background:linear-gradient(160deg,#eaf3fb 0%,#f4f7fa 60%,#fff 100%);padding:72px 0 84px}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.eyebrow{display:inline-block;background:#dcebe0;color:var(--accent);background:#fde7d5;font-weight:700;font-size:13px;letter-spacing:.3px;padding:6px 14px;border-radius:999px;text-transform:uppercase}
.hero h1{font-size:46px;line-height:1.1;margin:16px 0 14px;letter-spacing:-.5px}
.hero h1 span{color:var(--brand)}
.hero p.lead{font-size:18px;color:var(--muted);max-width:520px}
.hero-cta{display:flex;gap:14px;margin-top:26px;flex-wrap:wrap}
.hero-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:0 18px 50px rgba(11,111,184,.10)}
.hero-card h3{font-size:17px;margin-bottom:14px}
.hero-card ul{list-style:none;display:flex;flex-direction:column;gap:12px}
.hero-card li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink)}
.hero-card li b{color:var(--brand)}
.check{color:#1c9d5c;font-weight:800;flex:0 0 auto}
@media(max-width:860px){.hero-grid{grid-template-columns:1fr}.hero h1{font-size:36px}}

/* Trust strip */
.trust{background:var(--brand);color:#fff}
.trust .wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding:18px 22px;text-align:center}
.trust div{flex:1;min-width:140px;font-weight:600;font-size:14px}
.trust b{display:block;font-size:20px}

/* Sections */
section.pad{padding:74px 0}
.section-head{text-align:center;max-width:680px;margin:0 auto 44px}
.section-head h2{font-size:34px;letter-spacing:-.3px}
.section-head p{color:var(--muted);margin-top:10px;font-size:17px}

/* Services */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(0,0,0,.08)}
.card .ic{width:48px;height:48px;border-radius:12px;background:#eaf3fb;color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:14px}
.card h3{font-size:18px;margin-bottom:8px}
.card p{color:var(--muted);font-size:15px}
@media(max-width:860px){.cards{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.cards{grid-template-columns:1fr}}

/* Why us */
.why{background:var(--bg-soft)}
.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.why ul{list-style:none;display:flex;flex-direction:column;gap:16px;margin-top:18px}
.why li{display:flex;gap:12px;font-size:16px}
.why li .check{font-size:20px}
@media(max-width:860px){.why-grid{grid-template-columns:1fr}}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.contact-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.contact-card h3{font-size:20px;margin-bottom:16px}
.contact-row{display:flex;gap:12px;align-items:center;margin-bottom:14px;font-size:16px}
.contact-row .ic{color:var(--brand);font-size:20px}
.big-call{background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;border-radius:var(--radius);padding:30px;display:flex;flex-direction:column;justify-content:center}
.big-call .num{font-size:32px;font-weight:800;margin:6px 0 4px}
.big-call small{opacity:.85}
@media(max-width:860px){.contact-grid{grid-template-columns:1fr}}

/* Footer */
footer{background:#0e1b24;color:#9fb0bd;padding:34px 0;text-align:center;font-size:14px}
footer b{color:#fff}
.note{background:#fff8f0;border:1px dashed var(--accent);color:#9a5a1d;border-radius:10px;padding:12px 16px;font-size:14px;text-align:center;margin-top:26px}