:root{
  --teal:#15b6cf;
  --teal-dark:#0e8aa3;
  --teal-deep:#0a5f72;
  --bg:#f3fbfd;
  --ink:#0b2f38;
  --muted:#5a7a83;
  --card:#ffffff;
  --shadow:0 10px 30px rgba(13,120,143,.12);
  --radius:18px;
}

*{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);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block}

/* NAV */
.nav{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 24px;
  background:rgba(255,255,255,.82);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid rgba(13,120,143,.08);
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--teal-deep)}
.nav-links{display:flex;align-items:center;gap:22px;font-weight:500}
.nav-links a{color:var(--muted);transition:color .2s}
.nav-links a:hover{color:var(--teal-dark)}
.lang-toggle{
  border:1.5px solid var(--teal);color:var(--teal-dark);background:transparent;
  border-radius:999px;padding:6px 14px;font-weight:700;cursor:pointer;font-size:13px;transition:.2s;
}
.lang-toggle:hover{background:var(--teal);color:#fff}

/* BUTTONS */
.btn{
  display:inline-block;padding:13px 24px;border-radius:999px;font-weight:600;
  transition:transform .15s,box-shadow .2s,background .2s;cursor:pointer;border:none;font-size:15px;
}
.btn-primary{background:linear-gradient(135deg,var(--teal),var(--teal-dark));color:#fff;box-shadow:var(--shadow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(13,120,143,.28)}
.btn-ghost{border:1.5px solid var(--teal);color:var(--teal-dark);background:#fff}
.btn-ghost:hover{background:var(--teal);color:#fff}
.btn-lg{padding:16px 34px;font-size:17px}

/* HERO */
.hero{
  display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;
  max-width:1100px;margin:0 auto;padding:70px 24px 50px;
}
.pill{
  display:inline-block;background:rgba(21,182,207,.12);color:var(--teal-dark);
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;margin-bottom:18px;
}
.hero-text h1{font-size:clamp(30px,5vw,48px);line-height:1.1;letter-spacing:-.02em;margin-bottom:18px}
.hero-text p{color:var(--muted);font-size:18px;max-width:520px;margin-bottom:28px}
.cta-row{display:flex;gap:14px;flex-wrap:wrap}

.hero-art{display:flex;justify-content:center}
.phone{
  width:240px;height:480px;border-radius:42px;
  background:linear-gradient(160deg,var(--teal),var(--teal-deep));
  padding:14px;box-shadow:0 30px 70px rgba(10,95,114,.4);position:relative;
}
.phone-screen{
  width:100%;height:100%;border-radius:30px;
  background:linear-gradient(180deg,#1ec3da,#0d8aa3);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:24px;overflow:hidden;
}
.droplet-big{width:120px;height:120px;filter:drop-shadow(0 8px 18px rgba(0,0,0,.2));animation:float 4s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.wave-btn{
  background:#fff;color:var(--teal-dark);font-weight:700;padding:12px 28px;border-radius:999px;
  box-shadow:0 8px 20px rgba(0,0,0,.18);position:relative;
}
.wave-btn::before,.wave-btn::after{
  content:"";position:absolute;inset:0;border-radius:999px;border:2px solid rgba(255,255,255,.6);
  animation:ripple 2.2s ease-out infinite;
}
.wave-btn::after{animation-delay:1.1s}
@keyframes ripple{0%{transform:scale(1);opacity:.7}100%{transform:scale(1.8);opacity:0}}
.freq{color:rgba(255,255,255,.9);font-weight:600;letter-spacing:.05em}

/* SECTIONS */
.section{max-width:1100px;margin:0 auto;padding:70px 24px}
.section-alt{background:#fff}
.section h2{font-size:clamp(26px,4vw,36px);text-align:center;margin-bottom:44px;letter-spacing:-.02em}

/* GRID CARDS */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px}
.card{
  background:var(--card);border-radius:var(--radius);padding:28px;
  box-shadow:var(--shadow);border:1px solid rgba(13,120,143,.06);transition:transform .2s;
}
.card:hover{transform:translateY(-4px)}
.ico{font-size:34px;margin-bottom:14px}
.card h3{font-size:20px;margin-bottom:8px;color:var(--teal-deep)}
.card p{color:var(--muted);font-size:15px}

/* STEPS */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:26px;max-width:960px;margin:0 auto}
.step{text-align:center;padding:10px}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:50%;
  background:linear-gradient(135deg,var(--teal),var(--teal-dark));color:#fff;font-weight:800;font-size:22px;margin-bottom:16px;
  box-shadow:var(--shadow);
}
.step h3{margin-bottom:8px;color:var(--teal-deep)}
.step p{color:var(--muted);font-size:15px}

/* DOWNLOAD */
.download{text-align:center}
.download p{color:var(--muted);font-size:18px;margin-bottom:28px}

/* SUPPORT */
.support-lead{text-align:center;color:var(--muted);font-size:18px;margin-bottom:36px;margin-top:-24px}
.support-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;max-width:900px;margin:0 auto}
.support-grid .btn{margin-top:12px}
details{border-top:1px solid rgba(13,120,143,.1);padding:12px 0}
details summary{cursor:pointer;font-weight:600;color:var(--teal-deep);list-style:none}
details summary::-webkit-details-marker{display:none}
details summary::before{content:"+ ";color:var(--teal)}
details[open] summary::before{content:"– "}
details p{color:var(--muted);font-size:15px;margin-top:8px}

/* FOOTER */
.footer{background:var(--teal-deep);color:#cfeef4;padding:40px 24px}
.footer-inner{max-width:1100px;margin:0 auto;display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center}
.footer .brand{color:#fff}
.footer-links{display:flex;gap:24px;flex-wrap:wrap;justify-content:center}
.footer-links a{color:#cfeef4;transition:color .2s}
.footer-links a:hover{color:#fff}
.copy{font-size:13px;color:#9fd3dd;max-width:560px}

/* LEGAL PAGES */
.legal{max-width:760px;margin:0 auto;padding:60px 24px}
.legal h1{font-size:34px;margin-bottom:8px;color:var(--teal-deep)}
.legal .updated{color:var(--muted);margin-bottom:32px}
.legal h2{font-size:22px;margin:28px 0 10px;color:var(--teal-deep)}
.legal p,.legal li{color:#365860;margin-bottom:10px}
.legal ul{padding-left:22px}
.back{display:inline-block;margin-bottom:24px;color:var(--teal-dark);font-weight:600}

/* RESPONSIVE */
@media(max-width:820px){
  .hero{grid-template-columns:1fr;text-align:center;padding-top:48px}
  .hero-text p{margin-left:auto;margin-right:auto}
  .cta-row{justify-content:center}
  .support-grid{grid-template-columns:1fr}
  .nav-links{gap:14px}
  .nav-links a:not(.lang-toggle){display:none}
}