:root {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --accent: #27C8F5;
  --accent-text: #075875;
  color: #1f2a2d;
  background: #f7f4ef;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
}

main {
  min-height: 100vh;
  background: #f7f4ef;
  color: #1f2a2d;
  transition: background 180ms ease, color 180ms ease;
}

main.dark {
  background: #121719;
  color: #e8efec;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1180px;
  margin: 0 auto;
  padding: 40px 20px 20px;
}

.eyebrow,
.meta {
  margin: 0 0 8px;
  color: #687273;
  font-size: 0.78rem;
  text-transform: uppercase;
}

.dark .eyebrow,
.dark .meta {
  color: #9fb2ad;
}

h1 {
  margin: 0;
  font-size: 3rem;
}

.dark h1 {
  color: var(--accent);
}

h2 {
  margin: 0 0 10px;
}

.summary {
  color: #526063;
  font-weight: 700;
}

.blog-text {
  line-height: 1.62;
}

.blog-text p:last-child {
  margin-bottom: 0;
}

.icon-button {
  min-width: 62px;
  height: 42px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  background: transparent;
  color: var(--accent-text);
  cursor: pointer;
  font-size: 1.2rem;
}

.dark .icon-button {
  color: var(--accent);
}

.toolbar {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px 22px;
}

input {
  width: 100%;
  border: 1px solid var(--accent);
  border-radius: 8px;
  padding: 13px 14px;
  font: inherit;
  background: #fff;
  color: #1f2a2d;
}

.dark input {
  background: #20282b;
  color: #e8efec;
  border-color: #3a4649;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.tabs button {
  border: 1px solid var(--accent);
  border-radius: 8px;
  padding: 8px 12px;
  background: transparent;
  color: inherit;
  cursor: pointer;
  text-transform: capitalize;
}

.tabs .active {
  background: var(--accent);
  border-color: var(--accent);
  color: #08222c;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 28px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px 48px;
}

.content {
  display: grid;
  gap: 14px;
}

.feature,
.entry,
.calendar {
  border: 1px solid #d9ded8;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  padding: 18px;
}

.dark .feature,
.dark .entry,
.dark .calendar {
  background: #1b2224;
  border-color: #334044;
}

.feature {
  border-left: 5px solid var(--accent);
}

.entry {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
}

.entry img {
  width: 120px;
  aspect-ratio: 1;
  border-radius: 8px;
  object-fit: cover;
}

a {
  color: var(--accent-text);
  font-weight: 700;
}

.dark a {
  color: var(--accent);
}

.calendar {
  position: sticky;
  top: 16px;
  height: fit-content;
}

.calendar ol {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.calendar li {
  display: grid;
  gap: 3px;
}

.calendar time {
  color: #687273;
  font-size: 0.85rem;
}

.empty {
  max-width: 1180px;
  margin: 0 auto;
  padding: 40px 20px;
}

@media (max-width: 820px) {
  h1 {
    font-size: 2.3rem;
  }

  .layout {
    grid-template-columns: 1fr;
  }

  .entry {
    grid-template-columns: 1fr;
  }

  .calendar {
    position: static;
  }
}