/* reset */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

img,
video {
  max-inline-size: 100%;
}

/* general */

:root {
  --color-bold: rgb(28, 113, 185);
  --border-radius: 4px;
}

body {
  background-color: rgb(209, 222, 234);
  color: rgb(11, 76, 132);
  line-height: 1.2;
  font-family: sans-serif;
}

header,
main {
  margin-inline: auto;
}

header {
  padding: 2rem;
  background-color: var(--color-bold);
  color: rgb(212, 232, 251);
}

.header-inner {
  max-inline-size: 44rem;
  margin-inline: auto;
}

.header-inner > :first-child {
  margin-block-start: 0;
}

.header-inner > :last-child {
  margin-block-end: 0;
}

main {
  min-block-size: 100vh;
  max-inline-size: 32rem;
  padding-inline: 1rem;
  padding-block-end: 2rem;
}

form {
  padding: 1rem;
  border: 1px solid var(--color-bold);
  margin-block-end: 1rem;
  border-radius: var(--border-radius);
}

form > :first-child {
  margin-block-start: 0;
}

form > :last-child {
  margin-block-end: 0;
}

.feed {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.post {
  padding: 1rem;
  /* background-color: rgb(243, 249, 255); */
  background-color: rgb(223, 236, 249);
  border-radius: var(--border-radius);
}

.post > :first-child {
  margin-block-start: 0;
}

.post > :last-child {
  margin-block-end: 0;
}

.gallery ul {
  appearance: none;
  list-style-type: none;
  padding-inline-start: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.post-footer {
  text-align: right;
}