/* Convergence Zone 3D — gaya untuk halaman About the Journal */
.cz {
  --cz-bg: #f3f1ea;
  --cz-panel: #ffffff;
  --cz-ink: #2f2e29;
  --cz-muted: #7b786e;
  --cz-line: #dcd8cc;
  --cz-dark: #3a3a2e;
  --cz-serif: Georgia, "Times New Roman", serif;
  margin: 1.5rem 0 2rem;
  border: 1px solid var(--cz-line);
  border-radius: 14px;
  overflow: hidden;
  background: var(--cz-panel);
  color: var(--cz-ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.4;
}
.cz *, .cz *::before, .cz *::after { box-sizing: border-box; }

.cz-stage {
  position: relative;
  height: 480px;
  background: radial-gradient(ellipse at 50% 40%, #fbfaf6 0%, var(--cz-bg) 70%);
  overflow: hidden;
  user-select: none;
}
.cz-canvas, .cz-canvas canvas { position: absolute; inset: 0; display: block; }
.cz-canvas canvas { touch-action: pan-y; cursor: grab; }
.cz-canvas canvas:active { cursor: grabbing; }

.cz-levels, .cz-plabels { position: absolute; inset: 0; pointer-events: none; }
.cz-level {
  position: absolute; left: 14px; top: 0;
  padding: 3px 12px;
  background: rgba(255, 255, 255, .85);
  border: 1px solid var(--cz-line);
  font: 17px/1.3 var(--cz-serif);
  color: #4a4940;
}
.cz-plabel {
  position: absolute; left: 0; top: 0;
  padding: 2px 10px;
  background: rgba(255, 255, 255, .88);
  border: 1px solid rgba(0, 0, 0, .06);
  font: 18px/1.3 var(--cz-serif);
  white-space: nowrap;
}

.cz-top { position: absolute; top: 14px; right: 14px; display: flex; gap: 8px; z-index: 3; }
.cz-btn {
  appearance: none;
  border: 1px solid var(--cz-line);
  background: #fff;
  color: var(--cz-ink);
  border-radius: 999px;
  padding: 8px 18px;
  font-family: inherit;
  font-size: 15px;
  line-height: 1.2;
  cursor: pointer;
  transition: background .15s, border-color .15s;
}
.cz-btn:hover { border-color: #b9b4a5; background: #faf9f5; }
.cz-btn:focus-visible { outline: 2px solid #4f8db3; outline-offset: 2px; }
.cz-round { width: 38px; height: 38px; padding: 0; font-weight: 600; font-family: var(--cz-serif); font-size: 17px; }
.cz-dark { background: var(--cz-dark); border-color: var(--cz-dark); color: #fff; font-family: var(--cz-serif); }
.cz-dark:hover { background: #2a2a20; border-color: #2a2a20; }
.cz-active { background: #ece9df; }

.cz-pop {
  position: absolute; top: 62px; right: 14px; z-index: 3;
  width: min(340px, calc(100% - 28px));
  max-height: calc(100% - 80px);
  overflow: auto;
  background: rgba(255, 255, 255, .96);
  border: 1px solid var(--cz-line);
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 14px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, .08);
}
.cz-pop[hidden], .cz-caption[hidden], .cz-tip[hidden] { display: none; }
.cz-pop p { margin: 0; }
.cz-details h3 { margin: 10px 0 4px; font: 16px var(--cz-serif); }
.cz-details h3:first-child { margin-top: 0; }
.cz-details small { color: var(--cz-muted); font-size: 12px; }
.cz-details ul { list-style: none; margin: 0; padding: 0; }
.cz-details li { padding: 3px 0; border-bottom: 1px dashed #eeebe3; }
.cz-details li span { display: inline-block; min-width: 64px; color: var(--cz-muted); font-variant-numeric: tabular-nums; }
.cz-details em { color: var(--cz-muted); font-size: 12px; }

.cz-caption {
  position: absolute; left: 50%; bottom: 96px; z-index: 2;
  transform: translateX(-50%);
  width: min(560px, calc(100% - 28px));
  text-align: center;
  background: rgba(255, 255, 255, .92);
  border: 1px solid var(--cz-line);
  border-radius: 10px;
  padding: 8px 14px;
  font: 16px/1.4 var(--cz-serif);
}

.cz-year {
  position: absolute; left: 0; right: 0; bottom: 18px;
  text-align: center;
  font: 64px/1 var(--cz-serif);
  color: #3b3a33;
  font-variant-numeric: tabular-nums;
  pointer-events: none;
}
.cz-angle {
  position: absolute; right: 16px; bottom: 14px;
  font: 15px var(--cz-serif);
  color: #9a978c;
  pointer-events: none;
}
.cz-tip {
  position: absolute; z-index: 4; pointer-events: none;
  max-width: 260px;
  background: #fff;
  border: 1px solid;
  border-left-width: 4px;
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 13px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, .1);
}
.cz-tip strong { display: block; font-family: var(--cz-serif); font-weight: 600; }
.cz-tip span { color: var(--cz-muted); }

.cz-panel { padding: 20px 28px 22px; border-top: 1px solid var(--cz-line); background: #fff; }
.cz-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.cz .cz-title { margin: 0; font: 28px/1.2 var(--cz-serif); color: var(--cz-ink); }
.cz-actions { display: flex; flex-wrap: wrap; gap: 8px; }

.cz-range {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 22px; margin: 0;
  background: transparent; cursor: pointer;
}
.cz-range::-webkit-slider-runnable-track { height: 3px; background: #b8b4a8; border-radius: 2px; }
.cz-range::-moz-range-track { height: 3px; background: #b8b4a8; border-radius: 2px; }
.cz-range::-webkit-slider-thumb {
  -webkit-appearance: none; width: 20px; height: 20px; margin-top: -8.5px;
  border-radius: 50%; background: var(--cz-dark); border: 0;
}
.cz-range::-moz-range-thumb { width: 20px; height: 20px; border-radius: 50%; background: var(--cz-dark); border: 0; }
.cz-range:focus-visible { outline: 2px solid #4f8db3; outline-offset: 2px; }

.cz-ticks { position: relative; height: 26px; margin: 4px 10px 10px; font: 16px var(--cz-serif); color: #4a4940; }
.cz-tick { position: absolute; top: 4px; transform: translateX(-50%); white-space: nowrap; }
.cz-tick:first-child { transform: translateX(-10px); }
.cz-tick:last-child { transform: translateX(calc(-100% + 10px)); }

.cz-row { display: flex; align-items: center; gap: 16px; font: 17px var(--cz-serif); }
.cz-row .cz-range { flex: 1; }

.cz-nowebgl { position: absolute; inset: 0; display: grid; place-items: center; padding: 20px; text-align: center; color: var(--cz-muted); }

@media (max-width: 640px) {
  .cz-panel { padding: 16px; }
  .cz .cz-title { font-size: 22px; }
  .cz-year { font-size: 44px; bottom: 12px; }
  .cz-angle { display: none; }
  .cz-level { left: 8px; font-size: 13px; padding: 2px 8px; }
  .cz-plabel { font-size: 14px; padding: 1px 6px; }
  .cz-btn { padding: 7px 13px; font-size: 14px; }
  .cz-round { width: 34px; height: 34px; padding: 0; }
  .cz-tick { font-size: 13px; }
  .cz-tick-minor { display: none; }
  .cz-caption { bottom: 70px; font-size: 14px; }
  .cz-row { gap: 10px; font-size: 14px; }
}