:root {
  --background: #f5f7e0;
  --text: #2f2f2b;
  --meta: #6e6e64;
  --link: #3a3a34;
  --signature: #9a9a90;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 100%;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  position: relative;
}

/* Background field */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: url("lake_geneva_olive_grey.svg");
  background-repeat: no-repeat;
  background-position: 65% 20%;
  background-size: 75vw auto;
  opacity: 0.09;
  filter: blur(2px);
  pointer-events: none;
  z-index: 0;
}

/* Layout */
.container {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 84px auto 80px auto;
  padding: 0 24px;
}

.page-header {
  margin: 0 0 3.2rem 0;
}

/* Title */
h1 {
  margin: 0 0 0.75rem 0;
  font-size: 1.55rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  line-height: 1.2;
  color: var(--text);
}

/* Subtitle + toggle as one block */
.subtitle {
  margin: 0 0 0.2rem 0;
  font-size: 0.92rem;
  letter-spacing: 0.025em;
  color: var(--meta);
}

.order-toggle {
  margin: 0;
  text-align: left;
  font-size: 0.92rem;
  letter-spacing: 0.025em;
  color: var(--meta);
}

/* Toggle styling (text, not buttons) */
.order-toggle button {
  appearance: none;
  -webkit-appearance: none;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
  padding: 0;
  opacity: 0.42;
}

.order-toggle button.active {
  opacity: 0.80;
  text-underline-offset: 0.18em;
}

.order-toggle span {
  opacity: 0.40;
  margin: 0 0.42rem;
}

/* Entries */
.entry {
  display: grid;
  grid-template-columns: 92px 1fr;
  column-gap: 20px;
  align-items: start;
  margin: 0 0 2rem 0;
}

.series-code {
  margin: 0;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--meta);
  text-transform: uppercase;
  line-height: 1.3;
  padding-top: 0.2rem;
}

.entry-main {
  margin: 0;
}

h2 {
  margin: 0 0 0.32rem 0;
  font-size: 1.32rem;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.01em;
}

h2 a {
  color: var(--link);
  text-decoration: none;
}

h2 a:hover,
h2 a:focus {
  text-decoration: underline;
  text-underline-offset: 0.08em;
}

.meta {
  margin: 0;
  font-size: 0.96rem;
  color: var(--meta);
  line-height: 1.45;
}

/* Signature */
.signature {
  margin: 4.2rem 0 0 0;
  text-align: center;
  font-size: 0.88rem;
  letter-spacing: 0.1em;
}

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

.signature a:hover,
.signature a:focus {
  text-decoration: none;
}

/* Mobile */
@media (max-width: 640px) {

  body::before {
    background-position: 62% 18%;
    background-size: 118vw auto;
    opacity: 0.08;
    filter: blur(2px);
  }

  .container {
    max-width: 100%;
    margin: 64px auto 56px auto;
    padding: 0 20px;
  }

  .page-header {
    margin-bottom: 2.6rem;
  }

  h1 {
    font-size: 1.28rem;
    letter-spacing: 0.06em;
  }

  .subtitle,
  .order-toggle {
    font-size: 0.86rem;
  }

  .entry {
    grid-template-columns: 1fr;
    row-gap: 0.25rem;
    margin-bottom: 1.75rem;
  }

  .series-code {
    padding-top: 0;
    font-size: 0.74rem;
  }

  h2 {
    font-size: 1.18rem;
  }

  .meta {
    font-size: 0.92rem;
  }

  .signature {
    margin-top: 3.4rem;
    font-size: 0.84rem;
  }
}