/* DEFINITIONS */

:root {
  color-scheme: light dark;
}

/* THEME */

@media (prefers-color-scheme: light) {
  :root {
    --urgent: #065ed4; /* telephone booth blue */
    --primary: #4e97e1; /* bell system van striping */
    --secondary: #e1b348; /* bell system van striping */
    --tertiary: #9ca38a; /* bell system van undercoating */
    --txt-color: black;
    --bg-color: #f7f6f7; /* no.5 xbar covers */
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    /*--urgent: #ff8206; */ /* fuse alarm */
    --urgent: #e75f1f; /* panel switch vermillion */
    --primary: #b8022a; /* major carrier alarm */
    --secondary: #e6ffa9; /* minor carrier alarm */
    --tertiary: #e75f1f; /* panel switch vermillion */
    --txt-color: white;
    --bg-color: black;
  }
}

:root {
  background: var(--bg-color);
}

/* STRUCTURE */

* {
  text-wrap: pretty;
}

body {
  max-width: 1600px;
}

.banner {
  max-height: 600px;
}

/* TYPOGRAPHY */

:root {
  font-family:
    "Jost", "Futura", "Inter", "Helvetica Neue", "Helvetica", Arial, sans-serif;
  font-display: swap;
  color: var(--txt-color);
}

@supports (font-variation-settings: normal) {
  :root {
    font-family:
      "Jost", "Futura", "InterVariable", "Helvetica Neue", "Helvetica", Arial,
      sans-serif;
  }
}

/* STYLE */

a {
  color: var(--tertiary);
  white-space: normal;
  text-decoration: underline;
  text-decoration-style: dotted;
  text-decoration-color: var(--tertiary);
}

a:hover {
  color: var(--primary);
  text-decoration: underline;
  text-decoration-style: solid;
  text-decoration-color: var(--secondary);
  text-decoration-skip-ink: auto;
}

#title,
#title a {
  color: var(--urgent);
  text-decoration: none;
}

#title,
.xxxlarge,
.xxlarge,
.xlarge,
.large {
  font-weight: 600;
}

.callout h1,
h1.callout,
.callout h2,
.callout h3 {
  color: var(--primary);
}

.callout a,
a.callout {
  color: var(--secondary);
}

/* CONTENT */

.header {
  display: flex;
  flex-direction: row;
  align-items: center;
  padding-bottom: 1rem;
}

.header * {
  padding: 0;
  margin: 0;
}

#logo {
  padding-right: 0.5rem;
  display: inline;
  max-height: 10rem;
}

#title {
  line-height: 1em;
}

/* MEDIA */

@media (prefers-color-scheme: dark) {
  #logo {
    filter: invert(100%);
  }
  hr {
    background-color: var(--txt-color);
  }
}

/* LAYOUT */

@media only screen and (max-width: 1550px) {
  #logo {
    max-height: 9rem;
  }
  #title {
    font-size: 9rem;
  }
}

@media only screen and (max-width: 1350px) {
  #logo {
    max-height: 7rem;
  }
  #title {
    font-size: 7.5rem;
  }
}

@media only screen and (max-width: 1150px) {
  .header {
    float: right;
  }
  #logo {
    max-height: 5.5rem;
  }
  #title {
    font-size: 6rem;
  }
}

@media only screen and (max-width: 950px) {
  #logo {
    max-height: 3.5rem;
  }
  #title {
    font-size: 4rem;
  }
}

@media only screen and (max-width: 650px) {
  #logo {
    max-height: 2.5rem;
  }
  #title {
    font-size: 3rem;
  }
}

@media only screen and (max-width: 450px) {
  #logo {
    max-height: 2.5rem;
  }
  #title {
    font-size: 2.5rem;
  }
}