:root {
  --clr-light: #ebedf2;
  --clr-dark: #2e3440;
  --clr-gray: #495059;
  --clr-card: rgba(255, 255, 255, 0.9);
  --clr-border: #d7dbe3;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html {
  overflow-y: scroll;
}

@supports (scrollbar-gutter: stable) {
  html {
    overflow-y: auto;
    scrollbar-gutter: stable;
  }
}

body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(60deg, var(--clr-light) 0%, #dadce0 100%);
  background-attachment: fixed;
  color: var(--clr-dark);
  font-family: "Lato", "Segoe UI", sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(90%, 52rem);
  margin: 0 auto;
  padding: 2rem 0 3rem;
}

.page-title {
  margin: 0 0 2rem;
  text-align: center;
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 400;
}

.archive-title {
  letter-spacing: 0.5rem;
  text-transform: uppercase;
}

.page-subtitle {
  margin: -1.25rem 0 2rem;
  text-align: center;
  color: var(--clr-gray);
  font-size: 1.1rem;
  font-weight: 300;
}

.card-grid {
  display: grid;
  gap: 1rem;
}

.card {
  display: block;
  padding: 1.1rem 1.25rem;
  border: 1px solid var(--clr-border);
  background: var(--clr-card);
  box-shadow: 0 1px 10px 0 rgba(136, 150, 166, 0.05);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.card:hover {
  box-shadow: 0 10px 20px 0 rgba(136, 150, 166, 0.1);
  transform: translateY(-1px);
}

.card-title {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 400;
}

.card-subtitle {
  margin: 0.35rem 0 0;
  color: var(--clr-gray);
  font-size: 1.1rem;
  font-weight: 300;
}

.card-document {
  position: relative;
  padding: 0;
}

.card-toggle {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.card-summary {
  padding: 1.1rem 1.25rem 0.9rem;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.card-summary-main {
  min-width: 0;
  flex: 1 1 auto;
}

.card-expand-indicator {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  flex: 0 0 auto;
  margin-top: 0.1rem;
  padding: 0;
  border: 0;
  color: var(--clr-gray);
}

.card-expand-icons {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.card-expand-attachment-icon {
  font-size: 0.9rem;
  opacity: 0.95;
}

.card-expand-chevron {
  font-size: 1rem;
  margin-left: 0.45rem;
  transition: transform 0.22s ease;
}

.card-attachments {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  overflow: hidden;
  pointer-events: none;
  padding: 0 1.25rem;
  transition: grid-template-rows 0.38s cubic-bezier(0.22, 0.61, 0.36, 1), opacity 0.25s ease, padding 0.38s ease;
}

.card-attachments-inner {
  min-height: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  transform: translateY(-0.55rem);
  transition: transform 0.38s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.card-attachment {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--clr-gray);
  font-size: 1rem;
  line-height: 1.3;
}

.card-attachment:hover {
  color: var(--clr-dark);
}

.card-toggle:checked ~ .card-attachments {
  grid-template-rows: 1fr;
  opacity: 1;
  pointer-events: auto;
  padding: 0 1.25rem 1.1rem;
}

.card-toggle:checked ~ .card-attachments .card-attachments-inner {
  transform: translateY(0);
}

.card-toggle:checked + .card-summary .card-expand-chevron {
  transform: rotate(180deg);
}

.card-toggle:focus-visible + .card-summary {
  outline: 2px solid #aab3c2;
  outline-offset: -2px;
}

@media (max-width: 40rem) {
  .card-summary {
    gap: 0.6rem;
  }
}

.back-link {
  display: inline-block;
  margin-bottom: 1.5rem;
  color: var(--clr-gray);
  font-size: 0.95rem;
}

.file-tag {
  margin: 0 0 0.5rem;
  color: var(--clr-gray);
  font-size: 0.8rem;
  letter-spacing: 0.08rem;
  text-transform: uppercase;
}

@media (max-width: 40rem) {
  .container {
    width: min(92%, 52rem);
  }

  .page-title {
    letter-spacing: 0.25rem;
  }
}