/* colours */

:root {
  --color-bg: #1e1e1e;
  --color-text: #c3c3c3;
  --color-heading: #dcdcdc;
  --color-accent: #5aacfc;
  --color-accent-hover: #dcdcdc;
  --color-muted: #999;
  --color-border: #383838;
  --color-input-bg: #2f2f2f;
  --color-input-text: #dcdcdc;
  --color-button-bg: #167bea;
  --color-button-text: #fff;
  --color-button-hover: #5aacfc;
}

@media (prefers-color-scheme: light) {
  :root {
    --color-bg: #fff;
    --color-text: #000;
    --color-heading: #000;
    --color-accent: #167bea;
    --color-accent-hover: #000;
    --color-muted: #666;
    --color-border: #d9dce1;
    --color-input-bg: #fff;
    --color-input-text: #000;
    --color-button-bg: #167bea;
    --color-button-text: #fff;
    --color-button-hover: #0e5db0;
  }
}

/* base */

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

body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: "Open Sans", sans-serif;
  font-size: 100%;
  line-height: 1.5;
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: "Source Sans Pro", sans-serif;
  font-weight: 600;
  color: var(--color-heading);
  margin: 0;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  color: var(--color-accent-hover);
}

/* logo */

.logo-dark,
.logo-light {
  display: none;
}

@media (prefers-color-scheme: dark) {
  .logo-dark {
    display: block;
  }
}

@media (prefers-color-scheme: light) {
  .logo-light {
    display: block;
  }
}

/* login */

body.login {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-container {
  width: 100%;
  max-width: 320px;
  padding: 2rem 0;
}

.login-logo {
  text-align: center;
  margin-bottom: 2.5rem;
}

.login-logo img {
  height: 40px;
  width: auto;
}

.login-form .field {
  margin-bottom: 0.75rem;
}

.login-form input {
  display: block;
  width: 100%;
  padding: 0.6rem 0.75rem;
  background: var(--color-input-bg);
  color: var(--color-input-text);
  border: 1px solid var(--color-border);
  border-radius: 3px;
  font-family: "Open Sans", sans-serif;
  font-size: 1rem;
}

.login-form input::placeholder {
  color: var(--color-muted);
}

.login-form button {
  display: block;
  width: 100%;
  padding: 0.6rem 0.75rem;
  background: var(--color-button-bg);
  color: var(--color-button-text);
  border: none;
  border-radius: 3px;
  font-family: "Open Sans", sans-serif;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

.login-form button:hover {
  background: var(--color-button-hover);
}

/* metrics */

.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin: 2rem 0;
}

.metric {
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: 3px;
}

.metric-label {
  font-family: "Source Sans Pro", sans-serif;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.metric-value {
  font-size: 2.5rem;
  font-weight: 600;
  font-family: "Source Sans Pro", sans-serif;
  line-height: 1;
}

.metric-value.good {
  color: #4ab74a;
}
.metric-value.needs-improvement {
  color: #e6a817;
}
.metric-value.poor {
  color: #e05252;
}

/* metric charts */

.metric-chart {
  display: block;
  height: 80px;
  width: 100%;
  margin-top: 1rem;
}