/* Customer-facing product changelog.
   The page intentionally explains only public, usable changes in plain language. */

.changelog-page {
  --changelog-max: 76rem;
}

.changelog-page .changelog-main {
  width: min(var(--changelog-max), calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(28px, 4vw, 56px) 0 64px;
}

.changelog-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, .72fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
  padding: clamp(28px, 4vw, 48px);
  border: 1px solid var(--wu-color-border, #dfe7e2);
  border-radius: var(--wu-radius-xl, 20px);
  background:
    radial-gradient(circle at 92% 8%, rgb(21 147 77 / 8%), transparent 18rem),
    linear-gradient(135deg, #fff, var(--wu-color-brand-softer, #f4fbf6));
  box-shadow: var(--wu-shadow-sm, 0 7px 22px rgb(20 35 27 / 7%));
}

.changelog-hero h1 {
  max-width: 820px;
  margin: 0;
  color: var(--wu-color-ink, #17221c);
  font-size: clamp(2rem, 4vw, 3.35rem);
  line-height: 1.04;
  letter-spacing: -.045em;
}

.changelog-principles {
  padding: 22px;
  border: 1px solid var(--wu-color-border, #dfe7e2);
  border-radius: var(--wu-radius-lg, 16px);
  background: rgb(255 255 255 / 82%);
}

.changelog-principles strong {
  display: block;
  margin: 8px 0 10px;
  color: var(--wu-color-ink, #17221c);
  font-size: 1.05rem;
}

.changelog-principles p {
  margin: 0;
  color: var(--wu-color-muted, #68766e);
  line-height: 1.7;
}

.changelog-feed {
  display: grid;
  gap: 24px;
  margin-top: 32px;
}

.changelog-release {
  overflow: hidden;
  border: 1px solid var(--wu-color-border, #dfe7e2);
  border-radius: var(--wu-radius-xl, 20px);
  background: #fff;
  box-shadow: var(--wu-shadow-sm, 0 7px 22px rgb(20 35 27 / 7%));
}

.changelog-release-header {
  display: grid;
  grid-template-columns: minmax(130px, .28fr) minmax(0, 1fr);
  gap: clamp(18px, 3vw, 36px);
  align-items: start;
  padding: clamp(22px, 3.5vw, 34px);
  border-bottom: 1px solid var(--wu-color-border, #dfe7e2);
  background: linear-gradient(135deg, #fff, rgb(244 251 246 / 72%));
}

.changelog-release-header time {
  display: inline-flex;
  width: fit-content;
  padding: 7px 10px;
  border-radius: 999px;
  color: var(--wu-color-brand-strong, #0d783e);
  background: var(--wu-color-brand-softer, #f4fbf6);
  font-size: .78rem;
  font-weight: 750;
}

.changelog-kicker {
  display: block;
  margin-bottom: 7px;
  color: var(--wu-color-brand-strong, #0d783e);
  font-size: .72rem;
  font-weight: 750;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.changelog-release h2 {
  margin: 0;
  color: var(--wu-color-ink, #17221c);
  font-size: clamp(1.35rem, 2.3vw, 2rem);
  line-height: 1.2;
  letter-spacing: -.025em;
}

.changelog-groups,
.changelog-tool-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
}

.changelog-groups section,
.changelog-tool-list section {
  padding: clamp(22px, 3vw, 30px);
  border-right: 1px solid var(--wu-color-border, #dfe7e2);
}

.changelog-groups section:last-child,
.changelog-tool-list section:last-child {
  border-right: 0;
}

.changelog-tool-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.changelog-tool-list section:nth-child(2n) {
  border-right: 0;
}

.changelog-tool-list section:nth-child(-n+2) {
  border-bottom: 1px solid var(--wu-color-border, #dfe7e2);
}

.changelog-groups h3,
.changelog-tool-list h3 {
  margin: 0 0 10px;
  color: var(--wu-color-ink, #17221c);
  font-size: 1rem;
}

.changelog-groups p,
.changelog-tool-list p,
.changelog-groups li {
  color: var(--wu-color-muted, #68766e);
  line-height: 1.7;
}

.changelog-groups p,
.changelog-tool-list p {
  margin: 0;
}

.changelog-groups ol {
  margin: 0;
  padding-left: 1.25rem;
}

.changelog-groups li + li {
  margin-top: 7px;
}

.changelog-tool-list a,
.changelog-action a {
  color: var(--wu-color-brand-strong, #0d783e);
  font-weight: 700;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.changelog-tool-list a {
  display: inline-block;
  margin-top: 14px;
}

.changelog-action {
  margin: 0;
  padding: 18px clamp(22px, 3vw, 30px);
  border-top: 1px solid var(--wu-color-border, #dfe7e2);
  background: #fbfdfb;
}

.changelog-tip {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 18px clamp(22px, 3vw, 30px);
  border-top: 1px solid var(--wu-color-border, #dfe7e2);
  color: var(--wu-color-muted, #68766e);
  background: #fbfdfb;
  line-height: 1.65;
}

.changelog-tip strong {
  color: var(--wu-color-ink, #17221c);
  white-space: nowrap;
}

.changelog-feedback {
  display: flex;
  gap: 28px;
  align-items: center;
  justify-content: space-between;
  margin-top: 32px;
  padding: clamp(24px, 3.5vw, 36px);
  border: 1px solid var(--wu-color-border, #dfe7e2);
  border-radius: var(--wu-radius-xl, 20px);
  background: var(--wu-color-brand-softer, #f4fbf6);
}

.changelog-feedback h2 {
  margin: 0 0 8px;
  color: var(--wu-color-ink, #17221c);
}

.changelog-feedback p {
  max-width: 720px;
  margin: 0;
  color: var(--wu-color-muted, #68766e);
  line-height: 1.7;
}

@media (max-width: 820px) {
  .changelog-hero,
  .changelog-release-header,
  .changelog-groups,
  .changelog-tool-list {
    grid-template-columns: 1fr;
  }

  .changelog-groups section,
  .changelog-tool-list section,
  .changelog-tool-list section:nth-child(2n) {
    border-right: 0;
    border-bottom: 1px solid var(--wu-color-border, #dfe7e2);
  }

  .changelog-groups section:last-child,
  .changelog-tool-list section:last-child {
    border-bottom: 0;
  }

  .changelog-feedback {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .changelog-page .changelog-main {
    width: min(100% - 24px, var(--changelog-max));
    padding-top: 18px;
  }

  .changelog-hero,
  .changelog-release-header,
  .changelog-groups section,
  .changelog-tool-list section,
  .changelog-feedback {
    padding-left: 18px;
    padding-right: 18px;
  }

  .changelog-tip {
    flex-direction: column;
  }

  .changelog-tip strong {
    white-space: normal;
  }
}