:root{
  --navy:#0B1F3A; --navy-2:#10294d; --teal:#23C4A8; --teal-2:#1aa089;
  --surface:#F4F6FA; --ink:#0B1F3A; --muted:#5b6b80; --white:#fff;
  --maxw:1080px; --radius:12px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:system-ui,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);
  background:var(--surface);line-height:1.55;-webkit-font-smoothing:antialiased}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
a{color:inherit;text-decoration:none}
.btn{display:inline-block;padding:12px 20px;border-radius:8px;font-weight:800;cursor:pointer;border:0;font-size:1rem}
.btn-primary{background:var(--teal);color:#04241d}
.btn-ghost{background:transparent;border:1px solid #3a5a85;color:#fff}
.btn-dark{background:var(--navy);color:#fff}

/* NAV */
.nav{position:sticky;top:0;z-index:20;background:var(--navy);color:#fff}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{font-weight:800;font-size:1.2rem}
.brand .dot{color:var(--teal)}
.nav-links{display:flex;gap:22px;font-size:.9rem;opacity:.85}
.nav-cta{display:flex;align-items:center;gap:14px}
.lang{opacity:.8;font-size:.85rem}
.nav-toggle{display:none;background:none;border:0;color:#fff;font-size:1.5rem;cursor:pointer}

/* HERO */
.hero{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 100%);color:#fff;
  text-align:left;padding:56px 0 64px}
.hero-inner{display:flex;align-items:center;gap:36px;flex-wrap:wrap}
.hero-text{flex:1 1 320px}
.hero h1{font-size:2.4rem;font-weight:800;line-height:1.16}
.hero p{opacity:.85;max-width:540px;margin:16px 0 0;font-size:1.05rem}
.hero-cta{display:flex;gap:12px;justify-content:flex-start;margin-top:26px;flex-wrap:wrap}
.hero-trust{opacity:.7;font-size:.85rem;margin-top:20px}
.hero-figure{flex:1 1 300px;display:flex;justify-content:center}
.hero-figure img{width:100%;max-width:330px;height:auto;background:#fff;border-radius:24px;
  padding:12px;box-shadow:0 18px 50px rgba(0,0,0,.28)}

/* SECTIONS */
.section{padding:52px 0}
.section h2{font-size:1.6rem;font-weight:800;text-align:center}
.section .sub{text-align:center;color:var(--muted);margin-top:8px;max-width:560px;
  margin-left:auto;margin-right:auto}
.bg-white{background:#fff}
.bg-surface{background:var(--surface)}

.problem{text-align:center}
.problem .big{font-size:1.4rem;font-weight:800}
.problem p{color:var(--muted);max-width:540px;margin:10px auto 0}

.grid{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;margin-top:28px}
.step{flex:1;min-width:220px;max-width:300px;background:#fff;border-radius:var(--radius);
  padding:22px;border-top:3px solid var(--teal);box-shadow:0 4px 14px rgba(11,31,58,.06)}
.step .n{color:var(--teal);font-weight:800;font-size:1.5rem}
.step h3{margin:6px 0;font-size:1.05rem}
.step p{color:var(--muted);font-size:.92rem}

.features{display:flex;gap:14px;flex-wrap:wrap;justify-content:center;max-width:760px;
  margin:28px auto 0}
.feat{flex:1;min-width:200px;background:var(--surface);border-radius:10px;padding:16px}
.feat b{display:block}
.feat span{color:var(--muted);font-size:.88rem}

.who{background:var(--navy);color:#fff;text-align:center;padding:34px 0}
.who .label{font-size:.78rem;letter-spacing:1px;text-transform:uppercase;opacity:.6}
.who .list{font-weight:600;margin-top:10px}

/* DEMO BAND */
.demo{background:linear-gradient(135deg,var(--teal) 0%,var(--teal-2) 100%);color:#04241d;
  text-align:center;padding:46px 0}
.demo h2{font-size:1.5rem;font-weight:800}
.demo p{margin:8px 0 4px;opacity:.85}
.demo .small{font-size:.85rem;opacity:.75}

/* CONTACT */
.contact{background:#fff;text-align:center}
.form{max-width:460px;margin:18px auto 0;display:flex;gap:10px;flex-wrap:wrap}
.form input{flex:1;min-width:140px;padding:12px;border:1px solid #cbd5e1;border-radius:8px;font-size:1rem}
.form .full{flex:1 1 100%}
.form button{flex:1 1 100%}
.form-status{margin-top:12px;font-size:.9rem;min-height:1.2em}
.form-status.ok{color:var(--teal-2)} .form-status.err{color:#c0392b}
.contact .phone{margin-top:16px;color:var(--muted);font-size:.92rem}
.contact .phone a{color:var(--navy);font-weight:700}

/* FOOTER */
.footer{background:var(--navy);color:#fff;text-align:center;padding:20px 0;font-size:.82rem;opacity:.85}

@media(max-width:760px){
  .nav-links{display:none}
  .nav-toggle{display:block}
  .hero{text-align:center}
  .hero h1{font-size:1.8rem}
  .hero p{margin-left:auto;margin-right:auto}
  .hero-cta{justify-content:center}
  .hero-figure{order:-1}
  .hero-figure img{max-width:240px}
}