:root{--accent:#1f7a6f;--accent2:#d4a90f;--gradient1:#0f172a;--gradient2:#0ea5a8}
*{box-sizing:border-box}
body{font-family:Inter,Arial,Helvetica,sans-serif;margin:0;color:#111;background:linear-gradient(180deg,#ffffff,#f7fbfd)}
.container{max-width:1100px;margin:0 auto;padding:20px}
.site-header{background:transparent;padding:18px 0;position:sticky;top:0;z-index:20}
.header-inner{display:flex;align-items:center;justify-content:space-between}
.logo img{height:48px}
.nav a{margin-left:16px;text-decoration:none;color:#0f172a;font-weight:600}
.hero{padding:40px 0;display:flex;align-items:center;justify-content:center;background:linear-gradient(90deg,#e6f7f3, #ffffff)}
.hero-inner{display:flex;gap:30px;align-items:center}
.hero-text h1{font-size:34px;color:var(--gradient2);margin:0 0 12px 0}
.lead{font-size:16px;color:#333;margin-bottom:12px}
.cta{display:inline-block;margin-top:12px;padding:12px 18px;background:linear-gradient(90deg,var(--accent2),var(--gradient2));color:#fff;border-radius:10px;text-decoration:none;font-weight:700;box-shadow:0 10px 25px rgba(13,64,64,0.12)}
.hero-image img{width:420px;height:auto;border-radius:12px;box-shadow:0 30px 60px rgba(14,24,35,0.08)}
.services .grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:20px}
.card{padding:18px;border-radius:12px;background:linear-gradient(180deg,#ffffff,#f3fcfb);box-shadow:0 10px 30px rgba(15,24,35,0.06);border:1px solid rgba(15,24,35,0.03)}
.card h3{margin:0 0 8px 0;color:#0f172a}
.portfolio-grid{display:flex;gap:10px;margin-top:12px}
.portfolio-grid img{width:32%;border-radius:8px;object-fit:cover;height:160px}
.lead form{display:flex;flex-direction:column;gap:10px;max-width:520px}
.lead input{padding:12px;border-radius:10px;border:1px solid #d9eaea}
.lead button{padding:12px;border-radius:10px;background:linear-gradient(90deg,var(--gradient2),var(--accent2));color:#fff;border:none;font-weight:700;cursor:pointer}
.site-footer{padding:20px;text-align:center;background:transparent;margin-top:30px;color:#334155;font-weight:600}
.chat-section{margin-top:40px;padding:20px;background:linear-gradient(90deg,#ffffff,#f1fbfa);border-radius:12px;box-shadow:0 10px 30px rgba(14,24,35,0.03)}
.chat-box{border-radius:8px;border:1px solid #e6f7f4;padding:12px;background:#fff}
.chat-window{height:200px;overflow:auto;padding:8px;border-radius:8px;background:#f8fffef0;border:1px solid #eef7f5}
.bot-msg{background:#eefaf7;padding:10px;border-radius:8px;margin-bottom:8px;color:#064e47}
.user-msg{background:#e6f1ff;padding:10px;border-radius:8px;margin-bottom:8px;color:#0f172a;text-align:right}
.chat-controls{display:flex;gap:8px;margin-top:8px}
.chat-controls input{flex:1;padding:10px;border-radius:8px;border:1px solid #e6f7f4}
.chat-controls button{padding:10px 14px;border-radius:8px;background:linear-gradient(90deg,var(--gradient2),var(--accent2));color:#fff;border:none;cursor:pointer}
.small{font-size:13px;color:#475569;margin-top:8px}
@media(max-width:900px){.hero-inner{flex-direction:column}.services .grid{grid-template-columns:repeat(2,1fr)}.portfolio-grid img{width:100%;height:120px}}