/* ============================================================
   PAPYROS — The Archive (Papyros Archive.dc.html)
   Terminal prompt · timeline plot · chronological index
   ============================================================ */

@keyframes popin {
  from { opacity: 0; transform: translateX(-50%) scale(0.3); }
  to   { opacity: 1; transform: translateX(-50%) scale(1); }
}

/* ---------- head: title + toggle ---------- */
.arch-head {
  max-width: none;
  padding: clamp(48px, 5.5vw, 80px) clamp(24px, 4.5vw, 64px) 24px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 32px;
}
.arch-head__prompt {
  margin: 0 0 36px;
  font-family: var(--mono);
  font-size: 14px;
  color: var(--star-faint);
}
.arch-head__title {
  margin: 0 0 16px;
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(44px, 5vw, 72px);
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--star);
}
.arch-head__sub {
  margin: 0;
  font-size: 20px;
  color: var(--star-dim);
}
.arch-toggle {
  display: flex;
  font-family: var(--mono);
  font-size: 13.5px;
  border: 1px solid rgba(23, 20, 10, 0.2);
  border-radius: 4px;
  overflow: hidden;
}
.arch-toggle__btn {
  font: inherit;
  padding: 10px 22px;
  background: none;
  border: none;
  color: var(--star-dim);
  cursor: pointer;
  transition: color var(--t-hover) var(--ease-hover);
}
.arch-toggle__btn:hover:not(.is-active) { color: var(--star); }
.arch-toggle__btn.is-active {
  background: var(--ember);
  color: #FAF9F6;
}

/* ---------- timeline plot ---------- */
.arch-plot {
  max-width: none;
  padding: 16px clamp(24px, 4.5vw, 64px) 40px;
}
.archive-timeline__canvas {
  position: relative;
  height: 240px;
  border-bottom: 1px solid rgba(23, 20, 10, 0.15);
}
.archive-dot {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  transform: translateX(-50%);
  cursor: pointer;
  transition: box-shadow var(--t-hover) var(--ease-hover);
  z-index: 2;
}
.archive-dot:hover {
  box-shadow: 0 0 0 4px rgba(23, 20, 10, 0.08), 0 0 14px 2px currentColor;
  z-index: 10;
}
.archive-timeline__axis {
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 14px;
  color: var(--star-dim);
  padding: 12px 4px 0;
}
.archive-timeline__axis-mid { font-size: 13px; color: var(--star-faint); }

.archive-dot-tooltip {
  position: fixed;
  z-index: 100;
  transform: translate(-50%, -100%);
  padding: 12px 16px;
  background: #FFFFFF;
  border: 1px solid rgba(23, 20, 10, 0.15);
  border-radius: 5px;
  pointer-events: none;
  max-width: 17rem;
}
.archive-dot-tooltip strong {
  display: block;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 15px;
  line-height: 1.3;
  color: var(--star);
}
.archive-dot-tooltip span {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--star-dim);
  margin-top: 5px;
}

/* ---------- six-domain palette ---------- */
.dom-computation  { background: var(--dom-computation);  color: var(--dom-computation); }
.dom-information  { background: var(--dom-information);  color: var(--dom-information); }
.dom-intelligence { background: var(--dom-intelligence); color: var(--dom-intelligence); }
.dom-mathematics  { background: var(--dom-mathematics);  color: var(--dom-mathematics); }
.dom-physics      { background: var(--dom-physics);      color: var(--dom-physics); }
.dom-networks     { background: var(--dom-networks);     color: var(--dom-networks); }

.domain-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 26px;
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--star-dim);
}
.domain-legend__item { display: inline-flex; align-items: center; }
.domain-legend__dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  margin-right: 7px;
}

/* ---------- chronological index ---------- */
.arch-index {
  max-width: none;
  padding: clamp(40px, 5vw, 72px) clamp(24px, 4.5vw, 64px) clamp(56px, 6vw, 88px);
}
.arch-index__label {
  margin: 0 0 28px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--star-faint);
  letter-spacing: 0.04em;
}
.arch-index__clear { color: var(--ember); }
.arch-index__list { display: flex; flex-direction: column; }
.arch-row {
  display: grid;
  grid-template-columns: 88px 14px 1fr auto;
  gap: 20px;
  align-items: baseline;
  padding: 17px 8px;
  border-top: 1px solid rgba(23, 20, 10, 0.08);
  color: var(--star);
  transition: background var(--t-hover) var(--ease-hover);
}
.arch-row:hover { background: #ECE8DE; }
.arch-row__year {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--star-dim);
}
.arch-row__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  align-self: center;
}
.arch-row__title {
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.3;
}
.arch-row__author {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--star-faint);
  margin-left: 10px;
}
.arch-row__tag {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--star-faint);
}

@media (max-width: 720px) {
  .arch-row { grid-template-columns: 56px 10px 1fr; }
  .arch-row__tag { display: none; }
  .arch-row__title { font-size: 17px; }
  .arch-row__author { display: block; margin: 4px 0 0; }
  .archive-timeline__canvas { height: 300px; }
}

@media (max-width: 640px) {
  .archive-dot { width: 16px; height: 16px; }
}