:root {
  --ink: #17325b;
  --blue: #108bd3;
  --blue-dark: #0873b5;
  --orange: #ff8a1f;
  --cream: #fffaf2;
  --paper: #ffffff;
  --muted: #5f6f84;
  --line: #dbe7f1;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  font-family: Inter, ui-rounded, "Trebuchet MS", system-ui, sans-serif;
  background:
    radial-gradient(circle at 8% 10%, rgba(255,138,31,.16), transparent 23%),
    radial-gradient(circle at 92% 12%, rgba(16,139,211,.15), transparent 24%),
    var(--cream);
}
a { color: inherit; }
.site-header, main, footer { width: min(1120px, calc(100% - 36px)); margin-inline: auto; }
.site-header {
  min-height: 98px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 18px;
}
.back-link { color: var(--muted); font-weight: 750; text-decoration: none; }
.vivi-logo { width: 92px; height: 86px; object-fit: contain; }
.studio-name { justify-self: end; font-weight: 850; color: var(--blue-dark); }
.hero { padding: 58px 0 42px; text-align: center; }
.eyebrow { margin: 0 0 14px; color: var(--orange); font-size: 13px; font-weight: 900; letter-spacing: .18em; text-transform: uppercase; }
h1 { margin: 0; font-size: clamp(48px, 8vw, 84px); line-height: .94; letter-spacing: -.055em; }
.intro { max-width: 710px; margin: 24px auto 0; color: var(--muted); font-size: 19px; line-height: 1.65; }
.resource-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; padding: 24px 0 54px; }
.resource-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: var(--paper);
  box-shadow: 0 22px 60px rgba(23,50,91,.10);
}
.resource-card > img { width: 100%; aspect-ratio: 8.5 / 7.1; object-fit: cover; object-position: top; display: block; border-bottom: 1px solid var(--line); background: #fff; }
.letter-badge {
  position: absolute;
  top: 18px;
  right: 18px;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 70px;
  height: 70px;
  border: 5px solid #fff;
  border-radius: 22px;
  color: #fff;
  font-size: 30px;
  font-weight: 950;
  transform: rotate(4deg);
  box-shadow: 0 9px 24px rgba(23,50,91,.20);
}
.b-card .letter-badge { background: var(--orange); }
.c-card .letter-badge { background: var(--blue); }
.card-copy { padding: 28px; }
.small-label { margin: 0 0 8px; color: var(--orange); font-size: 12px; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.card-copy h2 { margin: 0; font-size: 30px; letter-spacing: -.035em; }
.card-copy > p:not(.small-label), .card-copy li { color: var(--muted); line-height: 1.6; }
.card-copy ul { min-height: 92px; padding-left: 20px; }
.download-button {
  display: block;
  padding: 15px 18px;
  border-radius: 15px;
  color: #fff;
  background: var(--blue);
  font-weight: 900;
  text-align: center;
  text-decoration: none;
  box-shadow: 0 9px 22px rgba(16,139,211,.20);
}
.download-button:hover { background: var(--blue-dark); transform: translateY(-1px); }
.parent-note { margin-bottom: 48px; padding: 30px; border: 1px solid #ffd7ac; border-radius: 24px; background: #fff4e6; }
.parent-note h2 { margin: 0 0 8px; }
.parent-note p { margin: 0; max-width: 850px; color: var(--muted); line-height: 1.65; }
footer { display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; padding: 28px 0 40px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
footer p { margin: 0; }

@media (max-width: 760px) {
  .site-header { grid-template-columns: 1fr auto; padding: 12px 0; }
  .studio-name { display: none; }
  .vivi-logo { width: 74px; height: 68px; }
  .hero { padding-top: 34px; }
  .resource-grid { grid-template-columns: 1fr; }
  .resource-card > img { aspect-ratio: 8.5 / 6.2; }
}