:root {
  --blue: #2f6ea5;
  --deep-blue: #1f4e79;
  --light-blue: #e8f0f7;
  --gold: #d4a017;
  --white: #ffffff;
  --ink: #18344d;
  --muted: #557087;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  background: linear-gradient(135deg, #f9fcff 0%, var(--light-blue) 100%);
}
.shell { width: min(1120px, 92%); margin: 0 auto; }
header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.35rem 0; border-bottom: 1px solid #cbddeb;
}
.brand { display: flex; align-items: center; gap: .8rem; font-weight: 700; color: var(--deep-blue); }
.mark {
  display: grid; place-items: center; width: 43px; height: 43px;
  color: var(--white); background: var(--deep-blue); border-radius: 8px;
  letter-spacing: .08em; font-size: .8rem;
}
.tag { color: var(--blue); font-size: .82rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.hero {
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 3rem;
  align-items: center; min-height: calc(100vh - 104px); padding: 4rem 0;
}
h1 { color: var(--deep-blue); font-size: clamp(2.7rem, 5vw, 4.9rem); line-height: 1.06; margin: .7rem 0 1.25rem; }
p { color: var(--muted); font-size: 1.1rem; line-height: 1.7; max-width: 38rem; }
.actions { display: flex; flex-wrap: wrap; gap: .85rem; margin-top: 2rem; }
.button {
  display: inline-block; padding: .95rem 1.25rem; border-radius: 6px;
  text-decoration: none; font-weight: 700; transition: transform .15s ease;
}
.button:hover { transform: translateY(-2px); }
.primary { background: var(--deep-blue); color: var(--white); }
.secondary { border: 1px solid var(--blue); color: var(--deep-blue); background: var(--white); }
.note { margin-top: 1.25rem; font-size: .88rem; color: var(--muted); }
.art {
  padding: 1.4rem; border-radius: 22px; background: rgba(255,255,255,.7);
  box-shadow: 0 18px 50px rgba(31,78,121,.13);
}
footer { padding: 1.5rem 0 2.4rem; color: var(--muted); font-size: .88rem; }
.portal { max-width: 640px; margin: 0 auto; padding: 9rem 0; text-align: center; }
.portal h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; padding: 3rem 0; }
  .art { order: -1; }
  header { align-items: flex-start; gap: 1rem; }
}