:root {
  --page-edge-gap: 20px;
  --page-max-width: 860px;
  --parchment: #e8edf3;
  --ivory: #fbf8f1;
  --brand: #1b365d;
  --near-black: #161616;
  --dark-warm: #3c3d3c;
  --olive: #555753;
  --stone: #6d6f6b;
  --border: #e2dacb;
  --border-soft: #dcd3c3;
  --tag-bg: #e8edf4;
  --serif: "YuMincho", "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif CJK JP",
    "Source Han Serif JP", "Source Han Serif SC", "Noto Serif CJK SC", Georgia, serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  position: relative;
  background-color: var(--parchment);
  background-image: none;
  color: var(--near-black);
  font-family: var(--serif);
  line-height: 1.56;
}

a {
  color: inherit;
  text-decoration-line: underline;
  text-decoration-color: color-mix(in srgb, currentColor 38%, transparent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.16em;
  text-decoration-skip-ink: auto;
}

a:hover,
a:focus-visible {
  text-decoration-color: color-mix(in srgb, currentColor 58%, transparent);
  text-decoration-thickness: 1.5px;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.34;
  mix-blend-mode: multiply;
  filter: saturate(0.9) contrast(1.04);
  background-image: url("ambient-noise.svg");
  background-size: 1400px 980px;
  background-position: 21% 16%;
  background-repeat: repeat;
  z-index: 0;
}

body::after {
  content: none;
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  mix-blend-mode: soft-light;
  filter: saturate(1) contrast(1);
  background-image: none;
  background-size: auto;
  background-position: 0 0;
  background-repeat: repeat;
  z-index: 0;
}

#app {
  --page-width: min(var(--page-max-width), calc(100vw - (var(--page-edge-gap) * 2)));
  min-height: 100vh;
  padding: var(--page-edge-gap);
  background: #d8dce2;
}

.page {
  position: relative;
  overflow: hidden;
  width: var(--page-width);
  max-width: var(--page-max-width);
  min-height: calc(100vh - (var(--page-edge-gap) * 2));
  margin: 0 auto;
  background-color: var(--ivory);
  border: 1px solid var(--border);
  border-radius: 2px;
  box-shadow: 0 16px 36px rgba(18, 19, 22, 0.11),
    0 3px 10px rgba(18, 19, 22, 0.08),
    0 1px 0 rgba(255, 255, 255, 0.82) inset;
  padding: 2.4rem 2.6rem 2.6rem;
  z-index: 1;
}

.page::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.34;
  mix-blend-mode: multiply;
  filter: saturate(0.96) contrast(1.1);
  background-image: url("paper-texture.svg");
  background-size: 980px 720px;
  background-position: 46% 39%;
  background-repeat: repeat;
  z-index: 0;
}

.page > * {
  position: relative;
  z-index: 2;
}

.hero {
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.2rem;
  margin-bottom: 1.5rem;
}

.site-title {
  margin: 0;
  font-size: clamp(2rem, 3.2vw, 2.6rem);
  line-height: 1.12;
  color: var(--near-black);
  letter-spacing: 0.01em;
}

.site-subtitle {
  margin: 0.45rem 0 0;
  color: var(--olive);
  font-size: 1.03rem;
}

.section {
  margin-top: 1.8rem;
}

.section-title {
  margin: 0 0 0.85rem;
  border-left: 0;
  border-radius: 0;
  padding-left: 0;
  color: var(--near-black);
  font-size: clamp(1.2rem, 2.2vw, 1.45rem);
  line-height: 1.25;
  font-weight: 500;
}

.lede {
  margin: 0;
  color: var(--dark-warm);
}

.project-list {
  list-style: none;
  padding: 0;
  margin: 0.6rem 0 0;
  display: grid;
  gap: 0;
}

.directory-table {
  margin-top: 0.55rem;
}

.directory-head {
  display: grid;
  grid-template-columns: 74px 1fr auto;
  gap: 0.6rem;
  padding: 0 0.15rem 0.46rem;
  border-bottom: 1px solid var(--border-soft);
  color: var(--olive);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.col-date {
  justify-self: end;
}

.project-item {
  background: transparent;
  border: 0;
  border-radius: 0;
  padding: 0;
}

.project-item:first-child {
  border-top: 0;
  padding-top: 0;
}

.project-row {
  width: 100%;
  border: 0;
  background: transparent;
  font: inherit;
  padding: 0.68rem 0.15rem;
  display: grid;
  grid-template-columns: 74px 1fr auto;
  gap: 0.6rem;
  align-items: baseline;
  text-align: left;
  cursor: pointer;
}

.project-row:hover {
  background: rgba(182, 196, 208, 0.12);
}

.project-item.selected .project-row {
  background: rgba(182, 196, 208, 0.18);
}

.project-kind {
  display: inline-block;
  color: var(--brand);
  font-size: 0.69rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.project-title {
  margin: 0;
  color: var(--near-black);
  font-size: 1.01rem;
  line-height: 1.32;
  font-weight: 500;
}

.project-title a {
  color: inherit;
}

.project-date {
  color: var(--stone);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  justify-self: end;
}

.project-description {
  margin: 0 0 0.68rem 4.75rem;
  color: var(--dark-warm);
}

.project-preview {
  margin-top: 1rem;
  padding: 0.9rem 0.15rem 0.2rem;
}

.project-preview-delayed {
  opacity: 0;
  transform: translateY(6px);
  animation: project-panel-enter 380ms cubic-bezier(0.2, 0.85, 0.22, 1) 280ms forwards;
}

.project-preview-standalone {
  margin-top: 0.7rem;
}

@keyframes project-panel-enter {
  from {
    opacity: 0;
    transform: translateY(6px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.project-preview-title {
  margin: 0 0 0.45rem;
  font-size: 1.12rem;
  line-height: 1.3;
  color: var(--near-black);
}

.project-preview-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-left: 4.75rem;
}

.project-preview-external {
  font-size: 0.84rem;
  white-space: nowrap;
}

.project-content {
  margin: 0.25rem 0 0.3rem 4.75rem;
  color: var(--dark-warm);
}

.project-subtitle {
  margin: 0.72rem 0 0.28rem;
  color: var(--near-black);
  font-size: 0.96rem;
  font-weight: 600;
}

.project-bullets {
  margin: 0;
  padding-left: 1.1rem;
}

.project-bullets li {
  margin: 0.12rem 0;
}

.project-meta {
  margin: 0;
  color: var(--olive);
  font-size: 0.92rem;
}

.project-preview-actions {
  display: flex;
  gap: 0.7rem;
  align-items: center;
  margin-left: 4.75rem;
}

.project-close-button {
  border: 1px solid var(--border-soft);
  background: linear-gradient(to bottom, #f4f0e6, #eee8db);
  color: var(--near-black);
  font-family: inherit;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  padding: 0.2rem 0.56rem;
  cursor: pointer;
}

.project-close-button:hover {
  background: linear-gradient(to bottom, #f8f4ea, #f1ebdd);
}

.project-preview-link {
  color: var(--brand);
  font-size: 0.92rem;
}

.boids-idle {
  margin-top: 0.8rem;
  padding: 0.2rem 0.15rem 0.2rem;
}

.boids-stage {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
}

.boids-stage-open,
.boids-stage-returning {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
}

.boids-stage-returning {
  animation: boids-return-hold 520ms ease-out forwards;
}

@keyframes boids-return-hold {
  from {
    opacity: 1;
  }

  to {
    opacity: 1;
  }
}

.boids-stage::before {
  content: none;
}

.boids-canvas {
  display: block;
  width: 100%;
  height: 100%;
  position: relative;
  z-index: 1;
}

.page > .boids-stage {
  z-index: 1;
}

.project-directory {
  margin-top: 1.3rem;
}

.directory-toggle {
  border: 1px solid var(--border-soft);
  background: linear-gradient(to bottom, #f4f0e6, #eee8db);
  color: var(--near-black);
  font-family: inherit;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  padding: 0.22rem 0.62rem;
}

.project-controls {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

.filter-buttons {
  display: flex;
  gap: 0.5rem;
}

.filter-button.selected {
  font-weight: 700;
  text-decoration: underline;
}

@media (max-width: 900px) {
  #app {
    --page-edge-gap: 24px;
  }

  .page {
    padding: 1.85rem 1.7rem 2rem;
  }
}

@media (max-width: 768px) {
  #app {
    --page-edge-gap: 28px;
  }
}

@media (max-width: 720px) {
  .page {
    border-radius: 2px;
    padding: 1.2rem 0.95rem 1.35rem;
  }

  .site-subtitle,
  .lede,
  .project-description {
    font-size: 0.97rem;
  }

  .project-row {
    grid-template-columns: 58px 1fr;
    gap: 0.5rem;
  }

  .directory-head {
    grid-template-columns: 58px 1fr;
    gap: 0.5rem;
  }

  .col-date {
    display: none;
  }

  .project-date {
    grid-column: 2;
    font-size: 0.72rem;
  }

  .project-description {
    margin-left: 3.75rem;
  }

  .project-preview-actions {
    margin-left: 3.75rem;
  }

  .project-content {
    margin-left: 3.75rem;
  }

  .project-preview-head {
    margin-left: 3.75rem;
  }

}