:root{
  --bg: #f4f5f7;
  --surface: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --brand: #2f8f83;
  --brand-600: #25766c;
  --accent: #8b9cfb;
  --sb-bg: #111418;
  --radius: 18px;
  --shadow: 0 14px 40px rgba(0,0,0,.08);
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(139,156,251,.18) 0%, transparent 55%),
    radial-gradient(1000px 500px at 110% 10%, rgba(47,143,131,.12) 0%, transparent 55%),
    var(--bg);
  color:var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
}

.app-landing{
  min-height:100vh;
  display:grid;
  grid-template-rows: auto 1fr auto;
  gap: 16px;
  padding: 16px;
}

.header{
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-600) 100%);
  color:#fff;
  border-radius: var(--radius);
  box-shadow: 0 6px 24px rgba(37,118,108,.18);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding: 14px 18px;
}
.brand-title{ margin:0; font-size:1.6rem; letter-spacing:.3px; }
.top-links{ display:flex; gap:14px; }
.top-link{
  color:#eafffb; text-decoration:none; padding:6px 10px; border-radius:10px;
}
.top-link:hover{ background: rgba(255,255,255,.18); }

.landing{
  display:grid; place-items:center;
}
.hero{
  width:min(1100px, 92vw);
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(18px, 4vw, 28px);
  display:grid;
  grid-template-columns: 380px 1fr;
  gap: clamp(16px, 4vw, 28px);
}

.hero-media{
  display:grid; place-items:center;
  padding: clamp(6px, 1.5vw, 12px);
}

.logo-img{ width: 120%; height: auto; object-fit: contain; display:block; }

.hero-copy{ display:flex; flex-direction:column; justify-content:center; }
.hero-copy h2{
  margin:0 0 8px; font-size: clamp(1.6rem, 2.6vw, 2rem);
}
.sub{
  color:var(--muted);
  margin:0 0 18px; max-width: 52ch; line-height: 1.5;
}
.cta-row{ display:flex; gap:12px; flex-wrap:wrap; }

.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding: 12px 18px; border-radius: 12px; text-decoration:none;
  font-weight:600; letter-spacing:.2px; transition: transform .05s ease, box-shadow .15s ease, background .2s ease, color .2s ease;
}
.btn:active{ transform: translateY(1px); }

.btn.primary{
  background: var(--brand);
  color:#fff;
  box-shadow: 0 8px 22px rgba(47,143,131,.22);
}
.btn.primary:hover{ background: var(--brand-600); }

.btn.ghost{
  background: transparent; color: var(--brand-600);
  box-shadow: inset 0 0 0 1px rgba(37,118,108,.35);
}
.btn.ghost:hover{ background: rgba(47,143,131,.08); }

.footer{
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: 0 -1px 0 rgba(0,0,0,.04), 0 10px 30px rgba(0,0,0,.04) inset;
}
.footer-inner{
  padding: 14px 18px;
  display:flex; align-items:center; justify-content:space-between;
  flex-wrap: wrap; gap:12px;
}
.footer-links{ display:flex; gap:14px; flex-wrap: wrap; }
.footer a{ color: var(--brand-600); text-decoration: none; }
.footer a:hover{ text-decoration: underline; }

@media (max-width: 900px){
  .hero{
    grid-template-columns: 1fr;
    text-align:center;
  }
  .hero-copy{ align-items:center; }
  .sub{ max-width: 60ch; }
}