/* ============================================================================
   Broadsheet — lens layer (shared by Bionic Page and Bionic Docs)
   Feature components: hero, galley, dateline, lab, compare, specimen table,
   steps, panels, metrics, terminal, Q&A. Site-specific pieces (reader, hero
   layout) live in identity.css.
   ========================================================================== */

/* ------------------------------------------------------------------ folio */
.section { padding-top: 92px; }
.folio {
  display: flex;
  align-items: baseline;
  gap: 14px;
  border-top: 1px solid var(--line);
  padding-top: 15px;
}
.folio__no { font-family: var(--mono); font-size: 0.78rem; color: var(--accent); }
.folio__name {
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.17em;
  text-transform: uppercase;
  color: var(--mute);
}
.folio__rule { flex: 1; border-top: 1px solid var(--line); transform: translateY(-3px); }

.section__head { margin-bottom: 46px; }
.section__head h2 {
  font-size: clamp(1.85rem, 3.4vw, 2.55rem);
  letter-spacing: -0.015em;
  margin: 24px 0 14px;
  max-width: 24ch;
}
.section__stand {
  font-size: 1.04rem;
  color: var(--mute);
  max-width: 62ch;
  line-height: 1.65;
}
.section__stand code { font-size: 0.82em; }

/* ------------------------------------------------------------------- hero */
.hero { padding-top: 88px; }
.hero__kicker {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.74rem;
  font-weight: 650;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 32px;
}
.hero__kicker-rule { width: 56px; height: 1px; background: var(--accent); opacity: 0.45; flex: none; }
.hero__title {
  font-size: clamp(2.7rem, 6.2vw, 4.9rem);
  line-height: 1.03;
  letter-spacing: -0.018em;
}
.hero__title b.bp-head { font-weight: 680; }
.hero__lede {
  font-family: var(--serif);
  font-size: 1.24rem;
  line-height: 1.58;
  color: var(--body);
}

/* ------------------------------------------------------- galley (specimen) */
.galley {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  box-shadow: var(--shadow-2);
  overflow: hidden;
}
.galley__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px 22px;
  padding: 15px 28px;
  border-bottom: 1px solid var(--line);
}
.galley__label {
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--mute);
}
.galley__label b { color: var(--accent); font-weight: 650; }
.galley__body {
  padding: 36px 44px 32px;
  font-family: var(--serif);
  font-size: 1.11rem;
  line-height: 1.72;
  color: var(--body);
  columns: 2;
  column-gap: 48px;
  column-rule: 1px solid var(--line);
}
.galley__body p + p { text-indent: 1.7em; }
.galley__body p:first-of-type::first-letter {
  float: left;
  font-size: 3.3em;
  line-height: 0.82;
  padding: 5px 12px 0 0;
  color: var(--accent);
}
.galley__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  padding: 13px 28px;
  border-top: 1px solid var(--line);
}
@media (max-width: 780px) {
  .galley__body { columns: 1; padding: 28px 26px; }
}

/* --------------------------------------------------------------- dateline */
.dateline {
  margin-top: 84px;
  border-top: 4px double var(--line-strong);
  border-bottom: 1px solid var(--line);
  padding-block: 20px;
  text-align: center;
}
.dateline p {
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--mute);
  line-height: 2;
}
.dateline b { color: var(--ink); font-weight: 650; }

/* -------------------------------------------------------------- stat line */
.stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mute);
}
.stats b { color: var(--ink); font-weight: 650; font-variant-numeric: tabular-nums; }

/* ----------------------------------------------------------------- slider */
.slider { display: inline-flex; align-items: center; gap: 12px; }
.slider__name {
  font-size: 0.7rem;
  font-weight: 650;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--mute);
}
.slider output {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--ink);
  min-width: 3.1em;
  text-align: right;
  font-variant-numeric: tabular-nums;
}
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 150px;
  height: 2px;
  border-radius: 2px;
  background: var(--line-strong);
  outline-offset: 5px;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--card);
  border: 1.5px solid var(--ink);
  box-shadow: var(--shadow-1);
  cursor: pointer;
  transition: transform 0.15s ease;
}
input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.18); }
input[type="range"]::-moz-range-thumb {
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--card);
  border: 1.5px solid var(--ink);
  box-shadow: var(--shadow-1);
  cursor: pointer;
}

/* ------------------------------------------------------------- segmented */
.seg {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--paper);
  overflow: hidden;
}
.seg button {
  padding: 8px 15px;
  font-size: 0.8rem;
  font-weight: 560;
  color: var(--mute);
  border-right: 1px solid var(--line);
  transition: background-color 0.16s ease, color 0.16s ease;
  white-space: nowrap;
}
.seg button:last-child { border-right: 0; }
.seg button:hover:not(.is-on) { color: var(--ink); background: var(--accent-soft); }
.seg button.is-on { background: var(--ink); color: var(--paper); }
@media (max-width: 640px) {
  .seg { flex-wrap: wrap; border-radius: var(--r-m); }
  .seg button { padding: 7px 11px; font-size: 0.75rem; }
}

/* --------------------------------------------------------------- demo lab */
.lab {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  box-shadow: var(--shadow-2);
  overflow: hidden;
}
.lab__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px 20px;
  padding: 16px 26px;
  border-bottom: 1px solid var(--line);
}
.lab__tools { display: flex; align-items: center; flex-wrap: wrap; gap: 12px 22px; }
.lab__body { display: grid; grid-template-columns: 1fr 1fr; }
.lab__pane { padding: 22px 26px 26px; }
.lab__pane + .lab__pane { border-left: 1px solid var(--line); }
.lab__pane-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: 12px;
}
.mini-btn {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--accent);
  padding: 4px 11px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--paper);
  text-transform: none;
  transition: border-color 0.16s ease, background-color 0.16s ease;
}
.mini-btn:hover { border-color: var(--accent); background: var(--accent-soft); }
.input {
  width: 100%;
  min-height: 196px;
  resize: vertical;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  padding: 16px 18px;
  font-family: var(--serif);
  font-size: 1.02rem;
  line-height: 1.68;
  color: var(--ink);
}
.input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.lab__out {
  min-height: 196px;
  font-family: var(--serif);
  font-size: 1.02rem;
  line-height: 1.68;
  color: var(--body);
}
.lab__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  padding: 13px 26px;
  border-top: 1px solid var(--line);
}
@media (max-width: 860px) {
  .lab__body { grid-template-columns: 1fr; }
  .lab__pane + .lab__pane { border-left: 0; border-top: 1px solid var(--line); }
}

/* ---------------------------------------------------------------- compare */
.compare {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  background: var(--card);
  box-shadow: var(--shadow-2);
  overflow: hidden;
  cursor: ew-resize;
  touch-action: none;
}
.compare:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.compare__layer { padding: 66px 58px 58px; }
.compare__top { position: absolute; inset: 0; background: var(--card); }
.compare__text {
  font-family: var(--serif);
  font-size: clamp(1.22rem, 2.5vw, 1.72rem);
  line-height: 1.55;
  color: var(--body);
  max-width: 47ch;
}
.compare__rule {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--accent);
  pointer-events: none;
}
.compare__handle {
  position: absolute;
  top: 50%;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-2);
  display: grid;
  place-items: center;
  color: var(--body);
  transform: translate(-50%, -50%);
  pointer-events: none;
}
.compare__handle .icon { width: 19px; height: 19px; }
.compare__tag {
  position: absolute;
  top: 15px;
  font-size: 0.68rem;
  font-weight: 650;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--mute);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  padding: 4px 11px;
  pointer-events: none;
}
.compare__tag--on { left: 16px; color: var(--accent); border-color: var(--accent); }
.compare__tag--off { right: 16px; }
.compare__pct {
  position: absolute;
  bottom: 13px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--mute);
  pointer-events: none;
}
@media (max-width: 640px) {
  .compare__layer { padding: 58px 26px 48px; }
}

/* --------------------------------------------------------- specimen table */
.specimen { border-top: 1px solid var(--line); }
.specimen__row {
  display: grid;
  grid-template-columns: 52px 168px 1.15fr 1fr;
  gap: 12px 26px;
  align-items: baseline;
  padding: 27px 12px;
  border-bottom: 1px solid var(--line);
  transition: background-color 0.18s ease;
}
.specimen__row:hover { background: var(--paper-2); }
.specimen__no { font-family: var(--mono); font-size: 0.76rem; color: var(--mute); }
.specimen__name {
  font-size: 0.79rem;
  font-weight: 650;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink);
}
.specimen__sample {
  font-family: var(--serif);
  font-size: 1.19rem;
  line-height: 1.5;
  color: var(--body);
}
.specimen__note { font-size: 0.87rem; color: var(--mute); line-height: 1.58; }
@media (max-width: 860px) {
  .specimen__row { grid-template-columns: 40px 1fr; }
  .specimen__sample, .specimen__note { grid-column: 2; }
}

/* ------------------------------------------------------------------ steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px 44px; }
.step { border-top: 2px solid var(--ink); padding-top: 20px; }
.step__no {
  display: block;
  font-family: var(--serif);
  font-size: 2.5rem;
  line-height: 1;
  color: var(--line-strong);
  margin-bottom: 12px;
}
.step h3 { font-family: var(--sans); font-size: 1.04rem; font-weight: 650; margin-bottom: 9px; }
.step p { font-size: 0.92rem; color: var(--mute); line-height: 1.62; }
.step code { font-size: 0.82em; }
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; } }

/* ----------------------------------------------------------------- panels */
.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  padding: 28px 30px 30px;
  box-shadow: var(--shadow-1);
}
.panel--recessed { background: var(--paper-2); box-shadow: none; }
.panel > h3 {
  display: flex;
  align-items: center;
  gap: 11px;
  font-family: var(--sans);
  font-size: 1.05rem;
  font-weight: 650;
  margin-bottom: 8px;
}
.panel > h3 .icon { color: var(--accent); width: 20px; height: 20px; }
.panel__sub { font-size: 0.88rem; color: var(--mute); margin-bottom: 22px; line-height: 1.55; }
.list { display: grid; gap: 13px; }
.list li { display: flex; gap: 12px; font-size: 0.92rem; line-height: 1.56; color: var(--body); }
.list li .icon { color: var(--accent); margin-top: 3px; width: 17px; height: 17px; }
.list b { color: var(--ink); }
.panel > p:last-child { margin-top: 16px; font-size: 0.87rem; color: var(--mute); }
@media (max-width: 860px) { .duo { grid-template-columns: 1fr; } }

/* plain marked list used inside recessed/side panels */
.ticks { display: grid; gap: 10px; }
.ticks li { position: relative; padding-left: 22px; font-size: 0.93rem; line-height: 1.55; }
.ticks li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.64em;
  width: 11px;
  height: 1px;
  background: var(--line-strong);
}

/* ------------------------------------------------------------------- keys */
.keys { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.key {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  border-radius: 7px;
  padding: 5px 12px;
  box-shadow: var(--shadow-1);
}
.key--accent { color: var(--accent); border-color: var(--accent); }
.keys__plus { color: var(--mute); font-size: 0.85rem; }
.keycap {
  font-family: var(--mono);
  font-size: 0.8em;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  border-radius: 6px;
  padding: 0.1em 0.5em;
}

/* ------------------------------------------------------------- rule rows */
.rules { display: grid; }
.rule {
  display: grid;
  grid-template-columns: 34px 1fr auto auto;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
}
.rule:first-child { border-top: 0; padding-top: 2px; }
.rule__fav {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-family: var(--serif);
  font-size: 0.95rem;
  color: var(--ink);
  background: var(--paper-2);
  border: 1px solid var(--line);
}
.rule__host { font-family: var(--mono); font-size: 0.85rem; color: var(--ink); }
.rule__mode { font-size: 0.78rem; color: var(--mute); white-space: nowrap; }
@media (max-width: 480px) {
  .rule { grid-template-columns: 34px 1fr auto; }
  .rule__mode { display: none; }
}

/* ----------------------------------------------------------------- switch */
.switch { position: relative; display: inline-block; width: 42px; height: 24px; flex: none; }
.switch input { position: absolute; inset: 0; opacity: 0; margin: 0; cursor: pointer; }
.switch__track {
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: var(--paper-2);
  border: 1px solid var(--line-strong);
  transition: background-color 0.2s ease, border-color 0.2s ease;
  pointer-events: none;
}
.switch__thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid var(--line-strong);
  transition: left 0.2s ease, background-color 0.2s ease;
  pointer-events: none;
}
.switch input:checked ~ .switch__track { background: var(--accent); border-color: var(--accent); }
.switch input:checked ~ .switch__thumb { left: 21px; background: #fff; border-color: transparent; }
.switch input:focus-visible ~ .switch__track { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ---------------------------------------------------------------- metrics */
.metrics {
  border-top: 4px double var(--line-strong);
  border-bottom: 4px double var(--line-strong);
  padding-block: 38px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 28px 20px;
}
.metric { text-align: center; position: relative; }
.metric + .metric::before {
  content: "";
  position: absolute;
  left: -10px;
  top: 12%;
  bottom: 12%;
  width: 1px;
  background: var(--line);
}
.metric__n {
  display: block;
  font-family: var(--serif);
  font-size: clamp(2rem, 3.8vw, 2.8rem);
  line-height: 1;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.metric__k {
  display: block;
  margin: 12px auto 0;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mute);
  max-width: 24ch;
  line-height: 1.5;
}
@media (max-width: 940px) {
  .metrics { grid-template-columns: repeat(3, 1fr); }
  .metric:nth-child(3n + 1)::before { display: none; }
}
@media (max-width: 560px) {
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .metric:nth-child(3n + 1)::before { display: block; }
  .metric:nth-child(odd)::before { display: none; }
}

/* ------------------------------------------------------------------ prose */
.prose { max-width: 68ch; font-family: var(--serif); font-size: 1.06rem; line-height: 1.78; color: var(--body); }
.prose p + p { margin-top: 1.15em; }
.prose strong { color: var(--ink); font-weight: 650; }
.prose code { font-family: var(--mono); font-size: 0.82em; }

/* --------------------------------------------------------------- terminal */
.term {
  background: #181410;
  border: 1px solid #322a1d;
  border-radius: var(--r-m);
  overflow: hidden;
  box-shadow: var(--shadow-2);
  color: #e8e0cc;
}
.term__bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 11px 16px;
  border-bottom: 1px solid #322a1d;
}
.term__dot { width: 10px; height: 10px; border-radius: 50%; border: 1.4px solid #57493a; }
.term__title { margin-left: 8px; font-family: var(--mono); font-size: 0.74rem; color: #8d8271; }
.term__copy {
  margin-left: auto;
  font-size: 0.74rem;
  font-weight: 600;
  color: #b3a88f;
  padding: 5px 13px;
  border: 1px solid #3d3423;
  border-radius: var(--r-pill);
  transition: color 0.16s ease, border-color 0.16s ease;
}
.term__copy:hover { color: #f5efdf; border-color: #6b5c42; }
.term__copy.is-copied { color: var(--accent-bright); border-color: var(--accent-bright); }
.term__body {
  padding: 18px 22px 20px;
  font-family: var(--mono);
  font-size: 0.84rem;
  line-height: 1.9;
  overflow-x: auto;
}
.term__line { display: flex; gap: 12px; }
.term__line > span:last-child { overflow-wrap: anywhere; }
.term__line.c { color: #8d8271; }
.prompt { color: var(--accent-bright); user-select: none; flex: none; }
.term .cmd { color: #ffffff; }
.term .flag { color: var(--accent-bright); }

/* --------------------------------------------------------------------- qa */
.qa { border-top: 1px solid var(--line); }
.qa__item { border-bottom: 1px solid var(--line); }
.qa__q {
  width: 100%;
  display: grid;
  grid-template-columns: 50px 1fr 34px;
  align-items: baseline;
  gap: 8px 16px;
  padding: 21px 6px;
  text-align: left;
}
.qa__no { font-family: var(--mono); font-size: 0.75rem; color: var(--mute); }
.qa__q-text {
  font-family: var(--serif);
  font-size: 1.16rem;
  line-height: 1.42;
  color: var(--ink);
  transition: color 0.16s ease;
}
.qa__q:hover .qa__q-text { color: var(--accent); }
.qa__x {
  justify-self: end;
  align-self: center;
  width: 27px;
  height: 27px;
  border: 1px solid var(--line);
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--mute);
  transition: transform 0.3s cubic-bezier(0.2, 0.6, 0.2, 1), color 0.2s ease, border-color 0.2s ease;
}
.qa__x .icon { width: 12px; height: 12px; }
.qa__item.is-open .qa__x { transform: rotate(45deg); color: var(--accent); border-color: var(--accent); }
.qa__a { height: 0; overflow: hidden; transition: height 0.34s cubic-bezier(0.2, 0.6, 0.2, 1); }
.qa__a-inner {
  margin-left: 66px;
  padding: 0 40px 26px 6px;
  font-size: 0.95rem;
  line-height: 1.68;
  color: var(--body);
  max-width: 74ch;
}
.qa__a-inner code { font-size: 0.84em; }
@media (max-width: 560px) {
  .qa__q { grid-template-columns: 1fr 34px; }
  .qa__no { display: none; }
  .qa__a-inner { margin-left: 0; }
}

/* ------------------------------------------------------------------- note */
.note { margin-top: 20px; font-size: 0.86rem; color: var(--mute); max-width: 72ch; line-height: 1.6; }
.note a { color: var(--accent); }