@font-face {
  font-family: 'Cascadia Code', sans-serif;
  src: url('./assets/fonts/regular.woff2') format(woff2);
  font-weight: var(--fw-400);
}

@font-face {
  font-family: 'Cascadia Code', sans-serif;
  src: url('./assets/fonts/bold.woff2') format(woff2);
  font-weight: var(--fw-700);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  /* neutral */
  --White: hsl(0, 0%, 100%);
  --Grayish-blue: hsl(219, 14%, 63%);
  --Very-dark-blue: hsl(224, 21%, 14%);
  --Dark-grayish-blue: hsl(219, 12%, 42%);
  --Light-grayish-blue-1: hsl(211, 68%, 94%);
  --Light-grayish-blue-2: hsl(205, 33%, 90%);
  --Very-light-grayish-blue: hsl(210, 60%, 98%);

  /* primary */
  --Red: hsl(1, 90%, 64%);
  --Blue: hsl(219, 85%, 26%);

  /* fw */
  --fw-400: 400;
  --fw-700: 700;

  font-family: 'Cascadia Code', sans-serif;

  @media (min-width: 40em) {
    background: var(--Light-grayish-blue-2);
    padding-block: 3em;
  }
}

ul {
  list-style-type: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
}

main {
  padding: 1em;

  @media (min-width: 40em) {
    background: var(--White);
    border-radius: 0.5em;
    margin-inline: auto;
    max-width: 30em;
  }
}

.d-none {
  display: none;
}

.blue {
  color: var(--Blue) !important;
}

.header_title,
.notifier-name {
  color: var(--Very-dark-blue);
}

.header_notification {
  color: var(--White);
  background: var(--Blue);
}

.link-secondary,
.notification_main {
  color: var(--Dark-grayish-blue);
}

.notification-time {
  color: var(--Grayish-blue);
}

.notified-about {
  color: var(--Dark-grayish-blue);
}

.new {
  background: var(--Very-light-grayish-blue);

  .notification-new {
    background: var(--Red);
    border-radius: 100%;
    width: 0.5em;
    display: inline-block;
    aspect-ratio: 1/1;
  }
}

.notifications_header {
  font-size: 1rem;
  gap: 0.5em;
  display: flex;
  align-items: center;
}

.header_title {
  font-size: inherit;
  font-weight: var(--fw-700);
}

.link-secondary {
  margin-left: auto;
  font-weight: var(--fw-700);
  font-size: 0.7rem;
}

.header_notification {
  font-weight: var(--fw-700);
  font-size: 0.7rem;
  border-radius: 5px;
  padding: 0.2em 0.7em;
}

.notifications_list {
  margin-top: 1em;
}

.notification {
  border-radius: 0.5em;
  font-size: 0.75rem;
  padding: 1em;
  gap: 1em;
  display: flex;
  align-items: flex-start;

  & + & {
    margin-top: 1em;
  }
}

.notifier-image {
  border-radius: 100%;
  max-width: 2.5rem;
  aspect-ratio: 1/1;
  object-fit: cover;
}

.notifier-name,
.notified-about {
  font: inherit;
  font-weight: var(--fw-700);
}

.notifier-name {
  display: inline-block;
}

.notification-time {
  font-weight: var(--fw-400);
}

.message-box {
  border: 1px solid var(--Light-grayish-blue-2);
  border-radius: 0.5em;
  font-size: 0.83rem;
  line-height: 1.25;
  padding: 1em;
  margin-top: 0.5em;
}

.notification_secondary {
  border-radius: 0.5em;
  margin-left: auto;
  max-width: 3em;
  aspect-ratio: 1/1;
}

.notification_main,
.notifier-name,
.notified-about,
.message-box,
.notification_secondary {
  cursor: pointer;
}

.notifier-name:hover,
.notified-about:hover {
  color: var(--Blue);
}

.message-box:hover {
  background: var(--Light-grayish-blue-1);
}