:root{
  --brand:#63d3ff;
  --brand-600:#2fb0ff;
  --bg:#63d3ff;
  --card:#ffffff;
  --text:#0f1724;
  --muted:#607080;
  --glass:rgba(99,211,255,0.08);
}
[data-theme="dark"]{
  --bg:#071226;
  --card:#071829;
  --text:#e6f7ff;
  --muted:#9aa6b2;
  --glass:rgba(99,211,255,0.06);
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;padding:0;
  font-family: 'Vazirmatn', Inter, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background:var(--bg); color:var(--text); -webkit-font-smoothing:antialiased;
}

/* layout */
.container{max-width:1100px;margin:0 auto;padding:16px}

/* header */
.site-header{background:var(--card);border-bottom:1px solid rgba(0,0,0,0.04);position:sticky;top:0;z-index:60}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 8px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo{width:46px;height:46px;object-fit:contain}
.brand-text{font-weight:700;color:var(--brand);font-size:18px}
.nav{display:flex;gap:12px;align-items:center}
.nav a{text-decoration:none;color:var(--text);font-size:14px}
.header-controls{display:flex;gap:8px;align-items:center}
.small-btn{background:transparent;border:1px solid rgba(0,0,0,0.06);padding:6px;border-radius:6px;cursor:pointer}
.mobile-btn{display:none}

/* hero */
.hero{display:grid;grid-template-columns:1fr 420px;gap:20px;align-items:center;padding:28px 0}
.hero-left h1{font-size:28px;margin:0 0 10px}
.muted{color:var(--muted)}
.hero-actions{display:flex;gap:12px;margin-top:12px}
.btn{background:linear-gradient(180deg,var(--brand),var(--brand-600));color:#fff;padding:10px 14px;border-radius:10px;text-decoration:none;display:inline-block}
.btn-outline{border:1px solid rgba(99,211,255,0.18);padding:8px 12px;border-radius:10px;color:var(--brand);background:transparent}
.hero-image{width:100%;max-width:360px;display:block;margin-left:auto}

/* cards */
.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.card{background:var(--card);padding:16px;border-radius:12px;box-shadow:0 8px 20px rgba(2,6,23,0.03)}

/* faq */
.faq-search input{width:100%;padding:10px;border-radius:10px;border:1px solid rgba(0,0,0,0.08);margin-bottom:12px}
.faq-list .faq-item{background:var(--card);padding:12px;border-radius:10px;margin-bottom:8px;border-left:4px solid rgba(0,0,0,0.02)}
.faq-q{font-weight:700}
.faq-a{margin-top:6px;color:var(--muted)}

/* map */
.map-frame iframe{width:100%;height:320px;border:0;border-radius:10px;display:block}

/* footer */
.site-footer{border-top:1px solid rgba(0,0,0,0.04);padding:18px 0;margin-top:30px}
.footer-left{display:flex;gap:12px;align-items:center}
.logo-sm{width:48px;height:48px}
.footer-right{display:flex;gap:12px;flex-direction:column;align-items:flex-end}

/* chat widget */
.chat-widget{position:fixed;left:18px;bottom:18px;z-index:99}
.chat-open{width:56px;height:56px;border-radius:999px;background:var(--brand);color:white;border:none;box-shadow:0 12px 30px rgba(99,211,255,0.12);cursor:pointer}
.chat-box{width:340px;background:var(--card);border-radius:12px;box-shadow:0 20px 40px rgba(2,6,23,0.12);overflow:hidden}
.chat-header{background:var(--brand);color:#fff;padding:10px;display:flex;justify-content:space-between;align-items:center}
.chat-history{max-height:220px;overflow:auto;padding:12px}
.chat-box input, .chat-box textarea{width:calc(100% - 24px);margin:8px 12px;padding:10px;border-radius:8px;border:1px solid rgba(0,0,0,0.06)}
.chat-box .btn{width:calc(100% - 24px);margin:12px}

/* misc */
.hidden{display:none}
.link{text-decoration:underline;color:var(--brand)}
.text-right{direction:rtl}

/* responsive */
@media(max-width:900px){
  .hero{grid-template-columns:1fr; text-align:center}
  .hero-right{order:-1}
  .cards{grid-template-columns:1fr}
  .nav{display:none}
  .mobile-btn{display:inline-block}
  .header-inner{gap:6px}
  .footer-right{align-items:flex-start}
  .brand-text{display:none}
  .hero-image{max-width:260px;margin:8px auto}
}