/* Primer 01 — page-specific components. */

/* ── §1 game loop ───────────────────────────────────────────────────────── */
.cycle { display: grid; grid-template-columns: repeat(4, 1fr); margin: 30px 0 8px; align-items: stretch; }
.cycle__cell {
  border: 1px solid var(--color-divider); border-left: 0;
  padding: 18px 16px; background: var(--color-neutral-100);
}
.cycle__cell:first-child { border-left: 1px solid var(--color-divider); border-radius: var(--radius-md) 0 0 var(--radius-md); }
.cycle__cell:last-child { border-radius: 0 var(--radius-md) var(--radius-md) 0; }
.cycle__no { font-family: var(--font-heading); color: var(--color-accent-700); font-size: 13px; letter-spacing: .1em; }
.cycle__name { font-family: var(--font-heading); font-size: 19px; margin: 4px 0 6px; }
.cycle__body { font-size: 13px; line-height: 1.6; color: var(--color-neutral-700); }
.cycle__pillrow { display: flex; align-items: center; justify-content: center; margin-top: 18px; }
.cycle__pill {
  border: 1.5px dashed var(--color-accent-400); color: var(--color-accent-700);
  border-radius: 999px; padding: 9px 22px;
  font-family: var(--font-heading); font-size: 14px; background: var(--color-accent-100);
}

/* ── §2 serial vs pipeline ──────────────────────────────────────────────── */
.panel {
  border: 1px solid var(--color-divider); border-radius: var(--radius-md);
  background: var(--color-neutral-100); padding: 22px 24px; margin: 28px 0 0;
}
.panel__title { font-family: var(--font-heading); font-size: 17px; margin-bottom: 4px; }
.panel__sub { font-family: var(--font-heading); font-size: 14px; color: var(--color-neutral-800); margin-bottom: 8px; }
.panel__note { font-size: 13px; color: var(--color-neutral-600); margin: 8px 0 22px; }
.panel__note--last { margin: 12px 0 0; }

.keys { display: flex; gap: 16px; flex-wrap: wrap; margin: 12px 0 20px; }
.keys__item { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--color-neutral-700); }
.keys__swatch { width: 12px; height: 12px; border-radius: 3px; display: inline-block; }

.strip { display: flex; gap: 4px; align-items: center; flex-wrap: nowrap; overflow-x: auto; padding-bottom: 4px; }
.stack { display: flex; flex-direction: column; gap: 4px; }
.stack__row { display: flex; gap: 4px; align-items: center; }
.stack__row--r { margin-left: 48px; }
.stack__row--h { margin-left: 96px; }
.stack__row--p { margin-left: 144px; }
.blk {
  width: 44px; height: 26px; flex: none; border-radius: 4px; color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 11px;
}
.stack .blk { height: 24px; }
.blk--game { background: #2f61d6; }
.blk--render { background: #4f7ee8; }
.blk--rhi { background: #7d899c; }
.blk--gpu { background: #1d3f88; }
.blk--done { width: 26px; color: var(--hot); background: transparent; font-size: 15px; }

/* ── §2 gantt ───────────────────────────────────────────────────────────── */
.gantt { padding: 20px 20px 22px; }
.gantt__bar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 14px; flex-wrap: wrap; margin-bottom: 16px;
}
.gantt__caption { font-family: var(--font-heading); font-size: 15px; color: var(--color-neutral-700); letter-spacing: .04em; }
.gantt__controls { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.gantt__speed { display: flex; align-items: center; gap: 8px; font-family: var(--font-heading); font-size: 13px; color: var(--color-neutral-700); }
.gantt__speed input[type=range] { width: 96px; }
.gantt__lanes { display: flex; }
.gantt__labels { flex: 0 0 132px; display: flex; flex-direction: column; }
.gantt__label {
  height: 46px; margin-bottom: 10px; display: flex; align-items: center; justify-content: flex-end;
  cursor: pointer; font-family: var(--font-heading); font-size: 15px;
  border: 0; border-right: 2px solid var(--color-accent-500); padding-right: 12px;
  background: transparent; color: var(--color-text); text-align: right; width: 100%;
}
.gantt__label:last-child { margin-bottom: 0; }
.gantt__viewport { position: relative; flex: 1 1 auto; height: 224px; overflow: hidden; }
.gantt__track { position: absolute; top: 0; left: 0; height: 100%; width: 5400px; will-change: transform; }
.gantt__blk {
  position: absolute; width: 96px; height: 46px;
  border: 1.5px solid; background: var(--color-accent-100); border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-heading); font-size: 13px;
}
.gantt__blk--now {
  background: var(--hot-tint); box-shadow: var(--shadow-md);
  outline: 2px solid var(--hot); font-size: 14px;
}
.gantt__playhead { position: absolute; top: -6px; left: 45%; width: 2px; height: 236px; background: var(--hot); }
.gantt__now {
  position: absolute; top: -6px; left: 45%; transform: translateX(-50%);
  font-size: 11px; letter-spacing: .14em; color: #fff; background: var(--hot);
  padding: 1px 7px; border-radius: 3px;
}
.gantt__readout {
  margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--color-divider);
  font-family: var(--font-heading); font-size: 15px; color: var(--color-neutral-800); line-height: 1.9;
}
.gantt__readout-row { display: flex; flex-wrap: wrap; gap: 10px 26px; margin-bottom: 10px; }
.gantt__readout-name { color: var(--color-neutral-600); }
.gantt__readout-val { color: var(--color-accent-700); font-weight: 600; }
.gantt__readout-line { font-size: 14px; color: var(--color-neutral-700); }

/* ── §3 flow ────────────────────────────────────────────────────────────── */
.flow { padding: 26px 22px; }
.flow__row { display: flex; align-items: stretch; flex-wrap: nowrap; }
.flow__node {
  flex: 1 1 0; display: flex; flex-direction: column; justify-content: center;
  border: 1px solid var(--color-accent-400); border-radius: var(--radius-md);
  padding: 16px 12px; text-align: center;
}
.flow__node--out { border: 1px dashed var(--color-neutral-400); }
.flow__kind { font-family: var(--font-heading); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--color-accent-700); }
.flow__node--out .flow__kind { color: var(--color-neutral-600); }
.flow__name { font-family: var(--font-heading); font-size: 17px; margin-top: 4px; line-height: 1.25; }
.flow__desc { font-size: 12px; color: var(--color-neutral-600); margin-top: 6px; line-height: 1.4; }
.flow__gap {
  flex: 0 0 92px; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 3px; padding: 0 2px;
}
.flow__payload { font-family: var(--font-heading); font-size: 11px; color: var(--color-neutral-700); line-height: 1.25; text-align: center; }
.flow__payload span { color: var(--color-neutral-500); }
.flow__arrow { font-family: var(--font-heading); font-size: 22px; color: var(--color-accent); line-height: 1; }
.flow__cap { font-size: 13px; color: var(--color-neutral-600); font-style: italic; margin: 16px 0 0; text-align: center; }

.rolecards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin: 16px 0 0; }
.rolecard {
  cursor: pointer; text-align: left; width: 100%;
  border: 1px solid var(--color-divider); border-top: 3px solid var(--color-accent-500);
  border-radius: var(--radius-md); padding: 16px; background: var(--color-neutral-100);
}
.rolecard:hover { box-shadow: var(--shadow-sm); }
.rolecard[aria-selected="true"] { border-color: var(--color-accent); border-top-color: var(--color-accent); background: var(--color-accent-100); }
.rolecard__kind { font-family: var(--font-heading); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--color-accent-700); }
.rolecard__name { font-family: var(--font-heading); font-size: 20px; margin: 6px 0 4px; }
.rolecard__desc { font-size: 13px; line-height: 1.6; color: var(--color-neutral-700); }

.detail {
  border: 1px solid var(--color-accent-400); border-radius: var(--radius-md);
  padding: 24px 26px; margin-top: 16px; background: var(--color-accent-100);
}
.detail__tag { font-family: var(--font-heading); font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--color-accent-700); }
.detail__name { font-size: 26px; margin: 6px 0 4px; }
.detail__en { font-family: var(--font-heading); font-size: 14px; color: var(--color-neutral-600); margin-bottom: 14px; }
.detail__list { margin: 0; padding-left: 20px; }
.detail__list li { font-size: 15px; line-height: 1.7; color: var(--color-neutral-800); margin-bottom: 8px; text-align: justify; }

/* ── §4 budget ──────────────────────────────────────────────────────────── */
.budget { padding: 24px 26px; margin-top: 26px; }
.budget__row { margin-bottom: 20px; }
.budget__head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 7px; }
.budget__label { font-family: var(--font-heading); font-size: 16px; }
.budget__en { color: var(--color-neutral-600); font-size: 13px; }
.budget__ms { font-family: var(--font-heading); font-size: 16px; color: var(--color-neutral-700); }
.budget__ms--hot { color: var(--color-accent-700); }
.budget__track {
  position: relative; height: 14px; margin-top: 6px;
  background: var(--color-neutral-200); border-radius: var(--radius-sm); overflow: hidden;
}
.budget__fill { position: absolute; top: 0; left: 0; height: 100%; background: var(--color-neutral-400); }
.budget__fill--hot { background: var(--color-accent-500); }
.budget__axis { position: relative; height: 1px; background: var(--color-divider); margin: 6px 0 4px; }
.budget__tick { position: absolute; left: 41.5%; top: -58px; height: 64px; width: 1px; background: var(--color-accent); }
.budget__ticklabel {
  position: absolute; left: 41.5%; top: -78px; transform: translateX(-50%);
  font-family: var(--font-heading); font-size: 11px; color: var(--color-accent-700); white-space: nowrap;
}
.budget__out {
  display: flex; gap: 24px; flex-wrap: wrap; align-items: baseline;
  margin-top: 26px; padding-top: 18px; border-top: 1px solid var(--color-divider);
}
.budget__outlabel { font-family: var(--font-heading); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--color-neutral-600); }
.budget__outbig { font-family: var(--font-heading); font-size: 34px; }
.budget__verdict { font-family: var(--font-heading); font-size: 20px; color: var(--color-accent-700); }
.budget__serial { font-size: 13px; color: var(--color-neutral-600); margin: 16px 0 0; font-style: italic; }

/* ── §5 capture ─────────────────────────────────────────────────────────── */
.memmap { padding: 22px 24px; margin: 26px 0 0; }
.memmap__row { display: flex; align-items: stretch; flex-wrap: wrap; }
.memmap__side {
  flex: 1 1 220px; border-radius: var(--radius-md); padding: 16px;
  border: 1.5px solid var(--color-accent-400); background: var(--color-accent-100);
}
.memmap__side--cpu { border-color: var(--color-neutral-400); background: var(--color-surface); }
.memmap__kind { font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--color-accent-700); }
.memmap__side--cpu .memmap__kind { color: var(--color-neutral-600); }
.memmap__box {
  border: 1px solid var(--color-accent-400); border-radius: var(--radius-sm);
  background: var(--color-surface); padding: 12px; margin-top: 10px; text-align: center;
}
.memmap__side--cpu .memmap__box { border-color: var(--color-neutral-300); background: var(--color-neutral-100); }
.memmap__boxname { font-family: var(--font-heading); font-size: 15px; }
.memmap__boxsub { font-size: 12px; color: var(--color-neutral-600); margin-top: 2px; }
.memmap__mid {
  flex: 0 0 130px; display: flex; flex-direction: column;
  align-items: center; justify-content: center; padding: 8px 6px; position: relative;
}
.memmap__border { position: absolute; top: 0; bottom: 0; left: 50%; border-left: 1.5px dashed var(--color-neutral-400); }
.memmap__midlabel {
  font-size: 10px; color: var(--color-neutral-500); text-align: center;
  background: var(--color-neutral-100); padding: 2px 0; z-index: 1; line-height: 1.3;
}
.memmap__midarrow { font-family: var(--font-heading); font-size: 22px; color: var(--hot); z-index: 1; margin: 6px 0; background: var(--color-neutral-100); }
.memmap__midnote { font-size: 11px; color: var(--color-neutral-700); text-align: center; z-index: 1; background: var(--color-neutral-100); line-height: 1.35; }
.memmap__cap { font-size: 13px; color: var(--color-neutral-600); margin: 16px 0 0; }

.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; margin: 20px 0 0; }
.step {
  cursor: pointer; text-align: left; width: 100%;
  border: 1px solid var(--color-divider); border-radius: var(--radius-md);
  padding: 14px 12px; background: var(--color-neutral-100);
}
.step:hover { border-color: var(--color-accent); }
.step[aria-selected="true"] { border-color: var(--color-accent); background: var(--color-accent-100); }
.step__no { font-family: var(--font-heading); color: var(--color-accent-700); font-size: 13px; }
.step__name { font-family: var(--font-heading); font-size: 15px; margin-top: 4px; line-height: 1.3; }
.stepdetail {
  border: 1px solid var(--color-accent-400); border-radius: var(--radius-md);
  padding: 22px 26px; margin-top: 14px; background: var(--color-accent-100);
}
.stepdetail__title { font-size: 22px; margin: 0 0 8px; }
.stepdetail__body { font-size: 15px; line-height: 1.75; text-align: justify; margin: 0; color: var(--color-neutral-800); }

/* glossary figures on this page run a little taller than the shared default */
.fig--tall { min-height: 132px; gap: 10px; }
.fig--tall .fig__box { padding: 9px 13px; font-size: 13px; }

.footer__next { font-family: var(--font-heading); font-size: 15px; color: var(--color-neutral-700); }

@media (max-width: 680px) {
  .cycle { grid-template-columns: 1fr; }
  .cycle__cell { border-left: 1px solid var(--color-divider); border-top: 0; }
  .cycle__cell:first-child { border-top: 1px solid var(--color-divider); border-radius: var(--radius-md) var(--radius-md) 0 0; }
  .cycle__cell:last-child { border-radius: 0 0 var(--radius-md) var(--radius-md); }
  .flow__row { flex-wrap: wrap; gap: 10px; }
  .flow__node { flex: 1 1 130px; }
  .flow__gap { flex: 0 0 44px; }
  .rolecards, .steps { grid-template-columns: 1fr 1fr; }
  .gantt__labels { flex: 0 0 96px; }
  .gantt__label { font-size: 13px; }
  .memmap__mid { flex: 1 1 100%; flex-direction: row; gap: 10px; padding: 12px 0; }
  .memmap__border { display: none; }
  .budget__tick, .budget__ticklabel { display: none; }
}