/* 彩工社広告講座｜全5回の講義マップ */
.ads-class-plan {
  margin: 28px 0;
  padding: clamp(22px, 4vw, 40px);
  border: 1px solid color-mix(in srgb, var(--color-primary, #5b4bdb) 18%, var(--color-border, #e4e4ef));
  border-radius: clamp(20px, 3vw, 30px);
  background:
    radial-gradient(circle at 100% 0, color-mix(in srgb, var(--color-accent, #16a394) 14%, transparent), transparent 38%),
    linear-gradient(155deg, color-mix(in srgb, var(--color-primary, #5b4bdb) 8%, #fff), #fff 56%);
}

.ads-class-plan__head {
  display: grid;
  gap: 10px;
  max-width: 720px;
}

.ads-class-plan__eyebrow,
.ads-class-plan__label {
  margin: 0;
  color: var(--color-primary-dark, #3e2dbd);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
}

.ads-class-plan__title {
  margin: 0;
  color: var(--color-text, #1f1b2d);
  font-size: clamp(23px, 4vw, 36px);
  line-height: 1.25;
  letter-spacing: -.035em;
}

.ads-class-plan__lead {
  margin: 0;
  color: var(--color-text-soft, #5e5870);
  font-size: 14px;
  line-height: 1.8;
}

.ads-class-plan__list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.ads-class-plan__item {
  display: grid;
  min-width: 0;
  gap: 12px;
  padding: 16px;
  border: 1px solid var(--color-border, #e4e4ef);
  border-radius: 16px;
  background: color-mix(in srgb, #fff 88%, transparent);
  box-shadow: 0 10px 24px rgba(31, 24, 65, .05);
}

.ads-class-plan__number {
  display: grid;
  width: 31px;
  height: 31px;
  place-items: center;
  border-radius: 50%;
  background: var(--color-primary, #5b4bdb);
  color: #fff;
  font-size: 13px;
  font-weight: 900;
}

.ads-class-plan__item h3 {
  margin: 4px 0 0;
  color: var(--color-text, #1f1b2d);
  font-size: 15px;
  line-height: 1.45;
}

.ads-class-plan__item-copy {
  margin: 0;
  color: var(--color-text-soft, #5e5870);
  font-size: 12px;
  line-height: 1.7;
}

.ads-class-plan__links {
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ads-class-plan__link {
  width: fit-content;
  max-width: 100%;
  padding: 3px 0;
  border: 0;
  background: transparent;
  color: var(--color-primary, #5b4bdb);
  font: inherit;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.35;
  text-align: left;
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, currentColor 35%, transparent);
  text-underline-offset: 3px;
  cursor: pointer;
}

.ads-class-plan__link:hover,
.ads-class-plan__link:focus-visible {
  color: var(--color-primary-dark, #3e2dbd);
}

.ads-class-plan__open {
  width: 100%;
  min-height: 38px;
  margin-top: auto;
  justify-content: center;
  padding: 8px 10px;
  border-radius: 10px;
  font-size: 12px;
}

.ads-class-plan__note {
  margin: 16px 0 0;
  color: var(--color-text-muted, #777184);
  font-size: 12px;
  line-height: 1.7;
}

@media (max-width: 1100px) {
  .ads-class-plan__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .ads-class-plan {
    padding: 22px 16px;
  }

  .ads-class-plan__list {
    grid-template-columns: 1fr;
  }
}

@media (prefers-color-scheme: dark) {
  .ads-class-plan {
    border-color: color-mix(in srgb, #a78bfa 38%, #293144);
    background:
      radial-gradient(circle at 100% 0, color-mix(in srgb, #34d399 18%, transparent), transparent 42%),
      linear-gradient(155deg, #211d36, #161522 58%);
  }

  .ads-class-plan__title,
  .ads-class-plan__item h3 {
    color: #f7f5ff;
  }

  .ads-class-plan__eyebrow,
  .ads-class-plan__label {
    color: #c4b5fd;
  }

  .ads-class-plan__lead,
  .ads-class-plan__item-copy,
  .ads-class-plan__note {
    color: #d5d0e3;
  }

  .ads-class-plan__item {
    border-color: #514b68;
    background: #28243a;
    box-shadow: 0 10px 24px rgba(0, 0, 0, .2);
  }

  .ads-class-plan__link {
    color: #c4b5fd;
  }

  .ads-class-plan__link:hover,
  .ads-class-plan__link:focus-visible {
    color: #e1dbff;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ads-class-plan * {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}