/* styles.css - simple, responsive */
:root{
  --bg:#ffffff;
  --muted:#6b6f76;
  --accent:#0b6b6b;
  --accent-2:#085a5a;
  --card:#f9fbfb;
  --radius:14px;
  --container:1100px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  color-scheme: light;
}

*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:#0b0b0b;line-height:1.45;-webkit-font-smoothing:antialiased}
.container{max-width:var(--container);margin:0 auto;padding:1rem}

.site-header{background:linear-gradient(90deg,#f7fffd 0%, #f2fffe 100%);border-bottom:1px solid #eef3f3;position:sticky;top:0;z-index:60}
.header-inner{display:flex;align-items:center;gap:1rem;justify-content:space-between;padding:0.75rem 0}
.brand{font-weight:700;color:var(--accent);text-decoration:none;font-size:1.1rem}
.nav{display:flex;gap:0.75rem;align-items:center}
.nav a{color:var(--muted);text-decoration:none;padding:0.55rem;border-radius:8px}
.nav a:hover{background:#eef7f7;color:var(--accent)}
.btn{display:inline-block;padding:0.6rem 1rem;border-radius:10px;text-decoration:none;border:1px solid #e6efef;background:white}
.btn.primary{background:var(--accent);color:white;border:none}
.btn.ghost{background:transparent;border:1px solid #dceeee;color:var(--accent)}

.nav-toggle{display:none;background:none;border:0;font-size:1.2rem}

/* Hero */
.hero{padding:3rem 0}
.hero-grid{display:grid;grid-template-columns:1fr 420px;gap:2rem;align-items:center}
.hero h1{font-size:2rem;margin:0 0 0.5rem}
.lead{color:var(--muted);margin:0 0 1rem}
.hero-visual img{max-width:100%;border-radius:12px;box-shadow:0 6px 30px rgba(6,20,20,0.06)}

.quick-stats{list-style:none;padding:0;margin:1rem 0 0;display:flex;gap:1rem}
.quick-stats li{background:var(--card);padding:0.6rem 0.8rem;border-radius:10px;text-align:center;font-size:0.9rem}
.quick-stats li span{display:block;color:var(--muted);font-size:0.8rem}

/* Cards */
.section{padding:2.25rem 0}
.section.alt{background:#fbffff}
.section h2{margin:0 0 0.25rem}
.section-sub{color:var(--muted);margin-bottom:1rem}

.cards-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}
.card{background:var(--card);padding:1rem;border-radius:12px;box-shadow:0 2px 10px rgba(6,20,20,0.03)}

/* Devices grid */
.device-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1rem;align-items:start}
.device{text-align:center}
.device img{height:80px;object-fit:contain;display:block;margin:0 auto 0.5rem}

/* Usecases */
.usecases{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem}
.usecases > div{background:linear-gradient(180deg,#fff 0,#fcffff 100%);padding:1rem;border-radius:10px;box-shadow:0 2px 8px rgba(6,20,20,0.03)}

.contact-grid{display:grid;grid-template-columns:1fr 320px;gap:1.25rem;align-items:start}
.contact-form label{display:block;margin-bottom:0.6rem}
.contact-form input, .contact-form textarea{width:100%;padding:0.6rem;border-radius:8px;border:1px solid #e4eeee}
.form-actions{margin-top:0.6rem}
.form-result{margin-top:0.6rem;color:var(--accent-2)}

.site-footer{padding:1rem 0;border-top:1px solid #eef3f3;background:#fcffff}
.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:1rem}

/* Responsive */
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:1rem}
  .nav{display:none;flex-direction:column;background:white;position:absolute;right:1rem;top:64px;padding:0.6rem;border-radius:10px;box-shadow:0 6px 30px rgba(6,20,20,0.06)}
  .nav-toggle{display:block}
  .contact-grid{grid-template-columns:1fr}
}