:root{
  --bg:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --border:#e5e7eb;
  --accent:#2563eb;
  --card:#ffffff;
  --shadow: 0 10px 25px rgba(15, 23, 42, 0.06);
}

*{margin:0;padding:0;box-sizing:border-box;}
html,body{height:100%;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  line-height:1.5;
}

/* Top bar */
.topbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding: 1rem 1.25rem;
}
.brand{
  text-decoration:none;
  color:var(--text);
  font-weight:600;
  letter-spacing:0.10em;
}
.topbar-right{
  display:flex;
  align-items:center;
  gap:.75rem;
}
.toplink{
  text-decoration:none;
  color:var(--muted);
  font-size:.95rem;
}
.toplink:hover{color:var(--text);}
select{
  border:1px solid var(--border);
  background:#fff;
  padding:.35rem .5rem;
  border-radius:.5rem;
  cursor:pointer;
}

/* Layout */
.container{
  max-width: 980px;
  margin: 0 auto;
  padding: 1.25rem;
}

.hero{
  padding: 1.5rem 0 0.5rem;
  display:flex;
  flex-direction:column;
  justify-content:center;
}

.logo-video{
  width:100%;
  max-width: 320px;
  height:auto;
  display:block;
  margin: 0 auto 1.5rem;
  border-radius: 1rem;
}

h1{
  font-size: clamp(1.9rem, 4vw, 3.1rem);
  font-weight:650;
  letter-spacing:-0.02em;
  margin-bottom:.9rem;
}
.lead{
  font-size: clamp(1rem, 2vw, 1.2rem);
  color:var(--muted);
  max-width: 680px;
  margin-bottom: 1.25rem;
}

.actions{
  display:flex;
  gap:.75rem;
  flex-wrap:wrap;
  margin: .25rem 0 1.25rem;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: .78rem 1.1rem;
  border-radius: .85rem;
  text-decoration:none;
  font-size: .95rem;
  border:1px solid var(--border);
  transition: transform .08s ease, box-shadow .12s ease, border-color .12s ease;
}
.btn:hover{transform: translateY(-1px);}
.btn.primary{
  background: var(--accent);
  color:#fff;
  border-color: transparent;
  box-shadow: var(--shadow);
}
.btn.ghost{
  background:#fff;
  color:var(--text);
}

/* Sections */
.section {
  padding-top: 2.5rem;
  border-top: 1px solid #f3f4f6;
  margin-top: 2rem;
}

.section-head{
  margin-bottom: 1rem;
}
.section-head h2{
  font-size: 1.35rem;
  font-weight:650;
  margin-bottom:.35rem;
}
.muted{color:var(--muted);}

/* Cards */
.cards{
  display:grid;
  grid-template-columns: 1fr;
  gap: .9rem;
  margin-top: 1rem;
}
@media (min-width: 760px){
  .cards{grid-template-columns: repeat(3, 1fr);}
}

.card{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1.1rem;
  padding: 1.1rem;
  text-decoration:none;
  color: var(--text);
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.03);
  transition: transform .08s ease, box-shadow .12s ease, border-color .12s ease;
  min-height: 160px;
}
.card:hover{
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  border-color: #dbeafe;
}
.card-icon{
  font-size: 1.2rem;
  margin-bottom: .6rem;
}
.card h3{
  font-size: 1.05rem;
  font-weight:650;
  margin-bottom: .35rem;
}
.card p{
  color: var(--muted);
  font-size: .95rem;
  margin-bottom: .7rem;
}
.card-link{
  font-size: .92rem;
  color: var(--accent);
  font-weight: 600;
}

/* Copy blocks */
.copy{
  max-width: 820px;
}
.copy h3{
  font-size: 1.05rem;
  font-weight: 650;
  margin-top: 1.1rem;
  margin-bottom: .35rem;
}
.copy p{
  color: var(--text);
  margin-bottom: .7rem;
}
.copy ul{
  margin: .35rem 0 .85rem 1.1rem;
  color: var(--text);
}
.copy li{
  margin: .28rem 0;
}

/* Final */
.final{
  padding: 2.2rem 0 2.4rem;
  border-top: 1px solid #f3f4f6;
  margin-top: 2rem;
}
.final h2{
  font-size: 1.45rem;
  font-weight: 650;
  margin-bottom: .35rem;
}

/* Footer */
.footer{
  border-top: 1px solid #f3f4f6;
  padding: 1rem 1.25rem;
  display:flex;
  justify-content:center;
  gap:.6rem;
  flex-wrap:wrap;
  color: var(--muted);
  font-size: .85rem;
}
.dot{opacity:.7;}
.linklike{
  background:none;
  border:none;
  padding:0;
  color: var(--muted);
  cursor:pointer;
  text-decoration: underline;
}
.linklike:hover{color:var(--text);}
.form { width: 100%; }
.label {
  display:block;
  font-size:.92rem;
  color: var(--muted);
  margin-bottom:.35rem;
}
.input{
  width:100%;
  border:1px solid var(--border);
  border-radius:.85rem;
  padding:.75rem .85rem;
  font-size:1rem;
  outline:none;
}
.input:focus{
  border-color:#bfdbfe;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}