:root {
  --green: #2f7d3a;
  --blue: #163f7a;
  --red: #a41f1f;
  --purple: #4b1291;
  --orange: #f5921b;
  --yellow: #ffcb3d;
  --cream: #fdf6e8;
  --ink: #26324a;
  --muted: #5b6472;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--cream);
  font-family: -apple-system, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
}

.rainbow-bar {
  height: 10px;
  width: 100%;
  background: linear-gradient(
    90deg,
    var(--green) 0% 25%,
    var(--blue) 25% 50%,
    var(--red) 50% 75%,
    var(--purple) 75% 100%
  );
}

.site-header {
  text-align: center;
  padding: 3rem 1.5rem 1.5rem;
}

.series-title {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.series-title .accent {
  color: var(--orange);
}

.coming-soon {
  display: inline-block;
  max-width: 90vw;
  margin-top: 1rem;
  padding: 0.6em 1.4em;
  background: var(--yellow);
  color: var(--ink);
  font-weight: 700;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: 16px;
  transform: rotate(-2deg);
  box-shadow: 0 3px 0 rgba(0, 0, 0, 0.15);
}

main {
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
}

.covers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  padding: 2rem 1.5rem 3rem;
}

.cover-card {
  margin: 0;
  background: #fff;
  border-radius: 20px;
  border-top: 8px solid transparent;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.cover-card:hover {
  transform: translateY(-6px) rotate(-1deg);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.18);
}

.cover-card img {
  width: 100%;
  display: block;
  aspect-ratio: 2250 / 2775;
  object-fit: cover;
}

.cover-card figcaption {
  padding: 0.9rem 1rem 1.3rem;
  text-align: center;
}

.cover-card figcaption strong {
  display: block;
  font-size: 1.05rem;
  margin-bottom: 0.2rem;
}

.cover-card figcaption span {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--muted);
}

.vol-1 { border-top-color: var(--green); }
.vol-1 figcaption strong { color: var(--green); }

.vol-2 { border-top-color: var(--blue); }
.vol-2 figcaption strong { color: var(--blue); }

.vol-3 { border-top-color: var(--red); }
.vol-3 figcaption strong { color: var(--red); }

.vol-4 { border-top-color: var(--purple); }
.vol-4 figcaption strong { color: var(--purple); }

.contact {
  text-align: center;
  padding: 0.5rem 1.5rem 2.5rem;
}

.contact p {
  margin: 0;
  font-size: 1rem;
  color: var(--ink);
}

.contact a {
  color: var(--blue);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid currentColor;
}

.contact a:hover {
  color: var(--orange);
}

.site-footer {
  margin-top: 3rem;
  padding: 2.5rem 1.5rem;
  background: #f4f1ea;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.site-footer p {
  max-width: 700px;
  margin: 0 auto 0.9rem;
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--muted);
  text-align: center;
}

.site-footer p.trademark {
  margin-bottom: 0;
}

.copyright {
  background: var(--ink);
}

.copyright p {
  margin: 0;
  padding: 0.9rem 1.5rem;
  text-align: center;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.75);
}