/* Section styles: system (#system): Program 01. Head + portrait, the 12-week dial with its phase cards, the sample
   session scene, the education accordion and the CTA. Unlayered (beats base.css); every selector is scoped. */

[data-section="system"] {
  --sys-steel: #2a2c31;
  --sys-ember: #ff2a1a;
}
[data-section="system"] > .wrap { position: relative; z-index: 1; }

/* giant outline "12" behind the head (decorative duplicate, aria-hidden) */
[data-section="system"] .system__bignum {
  position: absolute; z-index: 0; top: calc(var(--section-pad) * .35); right: -.04em; margin: 0; max-width: none;
  font-size: clamp(260px, 64vw, 860px); line-height: .8; letter-spacing: -.01em;
  -webkit-text-stroke: 1px rgba(237, 232, 223, .075);
  will-change: transform;
}

/* ------------------------------------------------------------------ head: title, portrait, intro plate */
[data-section="system"] .system__head {
  display: grid; gap: 28px;
  grid-template-areas: "title" "photo" "intro";
}
[data-section="system"] .system__title { grid-area: title; }
[data-section="system"] .system__title > h2 { margin-top: clamp(12px, 1.4vw, 20px); }
[data-section="system"] .system__portrait {
  grid-area: photo; width: 100%; max-width: 520px; justify-self: start;
  box-shadow: 0 40px 80px -40px rgba(0, 0, 0, .9);
}
[data-section="system"] .system__portrait::after {
  /* darken the blurred bystander at the lower left, keep the face and the sleeve */
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(20deg, rgba(5, 5, 5, .78) 0%, rgba(5, 5, 5, .2) 38%, rgba(5, 5, 5, 0) 60%),
    linear-gradient(0deg, rgba(5, 5, 5, .5) 0%, rgba(5, 5, 5, 0) 30%);
}
[data-section="system"] .system__portrait > img { transform-origin: 50% 40%; }
[data-section="system"] .system__intro {
  grid-area: intro; position: relative; z-index: 1;
  margin: -96px 14px 0;
  box-shadow: 0 24px 60px -24px rgba(0, 0, 0, .9);
}
[data-section="system"] .system__intro p { font-size: var(--fs-lead); line-height: 1.55; }
[data-section="system"] .system__intro strong { color: var(--white); }

@media (min-width: 760px), (orientation: landscape) and (max-height: 520px) and (min-width: 560px) {
  [data-section="system"] .system__head {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    grid-template-rows: auto 1fr;
    grid-template-areas: "title photo" "intro photo";
    column-gap: clamp(28px, 5vw, 96px); row-gap: 36px;
  }
  [data-section="system"] .system__portrait { justify-self: end; }
  [data-section="system"] .system__intro {
    align-self: end; justify-self: start; max-width: 640px;
    margin: 0 calc(-1 * clamp(56px, 8vw, 150px)) clamp(28px, 5vw, 80px) 0;
  }
}

/* landscape phones: the portrait never runs taller than the screen */
@media (orientation: landscape) and (max-height: 520px) {
  [data-section="system"] .system__portrait { width: min(100%, calc((100svh - var(--nav-h) - 24px) * .8)); }
}

/* ------------------------------------------------------------------ the dial block (phones/tablets: stacked, strip) */
[data-section="system"] .system__program {
  position: relative; display: grid; gap: 22px; align-items: start;
  margin-top: clamp(72px, 10vw, 150px);
}
[data-section="system"] .system__dial-col { min-width: 0; }
[data-section="system"] .system__dial-sticky { display: grid; justify-items: center; gap: 18px; }
[data-section="system"] .system__dial-wrap {
  position: relative; width: min(100%, 380px); container-type: inline-size;
}
[data-section="system"] .system__dial { cursor: pointer; -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
html.has-cursor [data-section="system"] .system__dial { cursor: none; }

/* SVG poster (also the live 2D dial when 3D is off) */
[data-section="system"] .dial-poster { overflow: visible; }
[data-section="system"] .dial-poster .dial-ticks { fill: none; stroke: rgba(237, 232, 223, .26); stroke-width: 1; }
[data-section="system"] .dial-poster .dial-ticks--lit { stroke: var(--blood-hot); stroke-width: 1.5; }
[data-section="system"] .dial-poster .dial-pticks { fill: none; stroke: var(--bone); stroke-width: 2; stroke-linecap: square; }
[data-section="system"] .dial-poster .dial-inner { fill: none; stroke: rgba(237, 232, 223, .14); stroke-width: 1; }
[data-section="system"] .dial-poster .dial-glow { fill: #ff2a1a; opacity: .9; }
[data-section="system"] .dial-poster.no-glow .dial-glow { display: none; }
[data-section="system"] .dial-poster .dial-frames path { stroke: rgba(237, 232, 223, .24); stroke-width: .6; transition: stroke .35s; }
[data-section="system"] .dial-poster .dial-ph { transform-box: view-box; transform-origin: 120px 120px; transition: transform .5s var(--ease-out); }
[data-section="system"] .dial-poster .dial-ph.is-active { transform: scale(1.03); }
[data-section="system"] .dial-poster .dial-ph.is-active path { stroke: rgba(255, 59, 48, .8); }
[data-section="system"] .dial-poster .dial-ph.is-hover { transform: scale(1.045); }
[data-section="system"] .dial-poster .dial-ph.is-hover path { stroke: var(--bone); }
[data-section="system"] .dial-poster .dial-cores { fill: #1c0909; }
[data-section="system"] .dial-poster .dial-head path { fill: none; stroke: #ffe3d6; stroke-width: 2.6; stroke-linecap: round; }
[data-section="system"] .dial-poster .dial-head { opacity: 0; transition: opacity .2s; }
[data-section="system"] .dial-poster .dial-head.is-on { opacity: 1; }

/* readout in the middle of the ring (decorative duplicate of the active card) */
[data-section="system"] .dial__readout {
  position: absolute; inset: 0; z-index: 2; pointer-events: none;
  display: grid; place-content: center; justify-items: center; gap: .3em; text-align: center;
}
[data-section="system"] .dial__readout::before {
  content: ""; position: absolute; z-index: -1; left: 50%; top: 50%; width: 56%; aspect-ratio: 1; border-radius: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(closest-side, rgba(11, 11, 12, .94) 70%, rgba(11, 11, 12, .55) 88%, rgba(11, 11, 12, 0));
}
[data-section="system"] .dial__range {
  display: block; overflow: hidden; height: 1.1em; padding-inline: .06em;
  font-family: var(--f-display); font-weight: 400; font-size: clamp(26px, 14.5cqi, 92px); line-height: 1.1; color: var(--bone);
}
[data-section="system"] .dial__val { display: block; white-space: nowrap; }
[data-section="system"] .dial__unit {
  font-family: var(--f-mono); font-weight: 500; font-size: clamp(10px, 2.2cqi, 13px); line-height: 1.2; letter-spacing: .22em;
  color: var(--blood-hot);
}
[data-section="system"] .dial__name {
  max-width: 40cqi; margin-top: .25em;
  font-family: var(--f-body); font-weight: 600; font-size: clamp(12px, 2.8cqi, 17px); line-height: 1.25; color: var(--mute);
  transition: opacity .3s;
}
[data-section="system"] .dial__readout.is-done .dial__name { opacity: 0; }
/* small dials (landscape phones): the range and unit only */
@container (max-width: 280px) {
  [data-section="system"] .dial__name { display: none; }
  [data-section="system"] .dial__unit { font-size: 9px; letter-spacing: .18em; }
}

/* phase buttons */
[data-section="system"] .dial-nav { display: grid; gap: 10px; width: min(100%, 460px); }
[data-section="system"] .dial-nav__cap {
  margin: 0; text-align: center; font-family: var(--f-mono); font-weight: 500; font-size: var(--fs-label);
  letter-spacing: .2em; text-transform: uppercase; color: var(--mute);
}
[data-section="system"] .dial-nav__btns { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px; }
[data-section="system"] .dial-nav__btn {
  position: relative; display: grid; place-items: center; min-height: 48px; padding: 8px 4px; overflow: hidden;
  background: var(--ink); color: var(--bone); border: 1px solid var(--line-2); border-radius: var(--radius);
  font-family: var(--f-mono); font-weight: 500; font-size: 13px; line-height: 1.2; letter-spacing: .04em; white-space: nowrap;
  transition: background-color .3s, border-color .3s, color .3s;
  touch-action: manipulation;
}
[data-section="system"] .dial-nav__btn::after {
  /* progress hairline: how much of this phase the dial has filled */
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--blood-hot);
  transform: scaleX(var(--l, 0)); transform-origin: 0 50%;
}
[data-section="system"] .dial-nav__btn[aria-current="true"] { background: var(--blood); border-color: transparent; color: var(--white); }
[data-section="system"] .dial-nav__btn[aria-current="true"]::after { background: var(--white); opacity: .7; }
@media (hover: hover) and (pointer: fine) {
  [data-section="system"] .dial-nav__btn:hover { border-color: rgba(237, 232, 223, .55); }
  [data-section="system"] .dial-nav__btn[aria-current="true"]:hover { background: var(--blood-deep); }
}
[data-section="system"] .dial-nav__btn:active { transform: translateY(1px); }
.no-js [data-section="system"] .dial-nav { display: none; }

/* phase cards: a native scroll-snap strip below 1024px */
[data-section="system"] .system__phases-col { position: relative; min-width: 0; }
[data-section="system"] .system__hint { display: none; margin: 0 0 10px; transition: opacity .4s; }   /* type: .hint */
html.js [data-section="system"] .system__program:not(.is-pin) .system__hint { display: flex; justify-content: flex-end; }
[data-section="system"] .system__hint.is-gone { opacity: 0; }
[data-section="system"] .system__phases {
  display: flex; gap: 12px; margin: 0 calc(-1 * var(--safe-r)) 0 calc(-1 * var(--safe-l));
  padding: 4px var(--safe-r) 10px var(--safe-l);
  overflow-x: auto; overscroll-behavior-x: contain; scroll-snap-type: x mandatory; scroll-padding-inline: var(--safe-l) var(--safe-r);
  scrollbar-width: none; -webkit-overflow-scrolling: touch;
}
[data-section="system"] .system__phases::-webkit-scrollbar { display: none; }
/* the part of the previous card that peeks in at the left fades out (JS sets --peek: where the first whole card starts) */
[data-section="system"] .system__phases.has-peek {
  -webkit-mask-image: linear-gradient(90deg, rgba(0, 0, 0, .1) 0, rgba(0, 0, 0, .1) max(0px, calc(var(--peek) - 26px)), #000 calc(var(--peek) - 2px));
  mask-image: linear-gradient(90deg, rgba(0, 0, 0, .1) 0, rgba(0, 0, 0, .1) max(0px, calc(var(--peek) - 26px)), #000 calc(var(--peek) - 2px));
}
[data-section="system"] .system__phases.is-dragging { -webkit-user-select: none; user-select: none; }

[data-section="system"] .phase {
  position: relative; flex: 0 0 min(84%, 420px); scroll-snap-align: start; scroll-snap-stop: always;
  display: flex; flex-direction: column; gap: 12px; min-width: 0;
  padding: 22px 22px 20px;
  background: var(--ink); border: 1px solid var(--line); border-radius: var(--radius);
  transition: border-color .4s, background-color .4s;
}
[data-section="system"] .phase::before {
  content: ""; position: absolute; left: -1px; top: -1px; bottom: -1px; width: 3px; background: var(--blood);
  transform: scaleY(0); transform-origin: 50% 0; transition: transform .55s var(--ease-out);
}
[data-section="system"] .phase.is-active { border-color: rgba(217, 28, 28, .55); background: #0f0f11; }
[data-section="system"] .phase.is-active::before { transform: scaleY(1); }
[data-section="system"] .phase__label { margin: 0; }
[data-section="system"] .phase__title { margin: 0; transition: color .4s; }
[data-section="system"] .phase__text { margin: 0; color: var(--bone); transition: color .4s; }
html.js [data-section="system"] .phase:not(.is-active) .phase__title,
html.js [data-section="system"] .phase:not(.is-active) .phase__text { color: var(--mute); }
[data-section="system"] .phase__bar { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; margin-top: auto; padding-top: 10px; }
[data-section="system"] .phase__bar > i { position: relative; display: block; height: 4px; overflow: hidden; background: rgba(237, 232, 223, .12); }
[data-section="system"] .phase__bar > i::after {
  content: ""; position: absolute; inset: 0; background: var(--blood-hot);
  transform: scaleX(var(--l, 0)); transform-origin: 0 50%;
}
@media (hover: hover) and (pointer: fine) {
  [data-section="system"] .phase:hover { border-color: rgba(237, 232, 223, .3); }
  [data-section="system"] .phase.is-active:hover { border-color: rgba(255, 59, 48, .8); }
}

@media (min-width: 640px) {
  [data-section="system"] .system__dial-wrap { width: min(100%, 440px); }
}

/* short landscape phones: dial left, strip right, all on one screen */
@media (orientation: landscape) and (max-height: 520px) and (max-width: 1023px) {
  [data-section="system"] .system__program { grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); align-items: center; column-gap: 28px; }
  [data-section="system"] .system__dial-wrap { width: min(100%, calc(100svh - var(--nav-h) - 96px)); }
  [data-section="system"] .dial-nav__btn { min-height: 44px; }
  [data-section="system"] .dial-nav__cap { display: none; }
  [data-section="system"] .system__dial-sticky { gap: 14px; }
  [data-section="system"] .system__phases { margin-left: 0; padding-left: 0; scroll-padding-left: 0; }
  [data-section="system"] .phase { flex-basis: min(88%, 420px); }
}

/* ------------------------------------------------------------------ desktop >= 1024: dial pinned left, cards scroll right */
@media (min-width: 1024px) {
  html.js [data-section="system"] .system__program.is-pin {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); column-gap: clamp(40px, 6vw, 120px); row-gap: 0;
    margin-top: clamp(72px, min(8vw, 12vh), 150px);
  }
  html.js [data-section="system"] .is-pin .system__dial-col { align-self: stretch; }
  html.js [data-section="system"] .is-pin .system__dial-sticky {
    position: sticky; top: var(--nav-h);
    height: calc(100vh - var(--nav-h)); height: calc(100svh - var(--nav-h));
    align-content: center; gap: 26px;
  }
  html.js [data-section="system"] .is-pin .system__dial-wrap { width: min(100%, calc(100vh - var(--nav-h) - 210px), 620px); width: min(100%, calc(100svh - var(--nav-h) - 210px), 620px); }
  html.js [data-section="system"] .is-pin .system__phases-col { padding: clamp(24px, 7svh, 120px) 0 calc(34svh + 24px); }
  html.js [data-section="system"] .is-pin .system__phases {
    display: grid; gap: clamp(20px, 2.6vw, 36px); margin: 0; padding: 0; overflow: visible; scroll-snap-type: none;
  }
  html.js [data-section="system"] .is-pin .phase {
    min-height: clamp(280px, 40svh, 420px); gap: 16px; padding: clamp(28px, 3vw, 48px);
  }
  html.js [data-section="system"] .is-pin .phase__title { font-size: var(--fs-h3-lg); line-height: var(--lh-display); }
  html.js [data-section="system"] .is-pin .phase__text { font-size: var(--fs-lead); line-height: 1.5; }
  html.js [data-section="system"] .is-pin .phase__bar > i { height: 5px; }
  /* no JS: a plain two-up grid */
  .no-js [data-section="system"] .system__program { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); column-gap: 64px; align-items: center; }
  .no-js [data-section="system"] .system__phases { display: grid; overflow: visible; margin: 0; padding: 0; }
}

/* ------------------------------------------------------------------ sample session: bag still + steps plate + photo */
[data-section="system"] .system__sample { position: relative; display: grid; margin-top: clamp(88px, 11vw, 190px); }
[data-section="system"] .system__scene {
  display: block; min-height: 0; padding: 0; background: var(--void); overflow: visible; isolation: isolate;
}
[data-section="system"] .system__bag {
  position: relative; inset: auto; z-index: 0; aspect-ratio: 4 / 3; border-radius: var(--radius); background: #070303;
}
[data-section="system"] .system__bag > img { object-position: 42% 50%; will-change: transform; }
[data-section="system"] .system__bag::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(0deg, rgba(5, 5, 5, .85) 0%, rgba(5, 5, 5, 0) 45%), linear-gradient(180deg, rgba(5, 5, 5, .35), rgba(5, 5, 5, 0) 30%);
}
[data-section="system"] .system__lamp { position: absolute; inset: 0; z-index: 1; background: #000; opacity: 0; pointer-events: none; }
html[data-motion="full"] [data-section="system"] .system__lamp { animation: sys-flicker 9s steps(1, end) infinite; }
@keyframes sys-flicker {
  0%, 61%, 63.5%, 65%, 100% { opacity: 0; }
  62% { opacity: .42; }
  64% { opacity: .22; }
  86% { opacity: 0; }
  86.6% { opacity: .3; }
  87.2% { opacity: 0; }
}
[data-section="system"] .system__steps {
  position: relative; z-index: 1; margin: -72px 12px 0;
  box-shadow: 0 30px 70px -30px rgba(0, 0, 0, .95);
}
[data-section="system"] .system__steps > .label + h3 { margin-top: clamp(12px, 1.4vw, 18px); }
[data-section="system"] .system__steplist { list-style: none; margin: clamp(18px, 2.4vw, 28px) 0 0; padding: 0; counter-reset: sys-step; }
[data-section="system"] .system__steplist > li {
  position: relative; counter-increment: sys-step; max-width: none;
  padding: 16px 0 16px 52px; border-top: 1px solid var(--line-2); color: var(--mute);
}
[data-section="system"] .system__steplist > li:last-child { padding-bottom: 2px; }
[data-section="system"] .system__steplist > li::before {
  content: counter(sys-step, decimal-leading-zero); position: absolute; left: 0; top: 16px;
  font-family: var(--f-display); font-size: 30px; line-height: 1; color: var(--blood-hot);
}
[data-section="system"] .system__steplist strong { display: block; margin-bottom: 2px; color: var(--bone); font-size: 1.06em; }

[data-section="system"] .system__training {
  position: relative; z-index: 2; width: min(78%, 440px); max-width: 440px; justify-self: end;
  margin: 24px 6px 0 0; outline: 1px solid var(--line-2); outline-offset: 6px;
  box-shadow: 0 40px 80px -30px rgba(0, 0, 0, .95);
}
[data-section="system"] .system__training::after {
  /* viewfinder corners */
  content: ""; position: absolute; inset: 10px; pointer-events: none;
  --c: var(--blood-hot);
  background:
    linear-gradient(var(--c), var(--c)) 0 0 / 18px 2px, linear-gradient(var(--c), var(--c)) 0 0 / 2px 18px,
    linear-gradient(var(--c), var(--c)) 100% 0 / 18px 2px, linear-gradient(var(--c), var(--c)) 100% 0 / 2px 18px,
    linear-gradient(var(--c), var(--c)) 0 100% / 18px 2px, linear-gradient(var(--c), var(--c)) 0 100% / 2px 18px,
    linear-gradient(var(--c), var(--c)) 100% 100% / 18px 2px, linear-gradient(var(--c), var(--c)) 100% 100% / 2px 18px;
  background-repeat: no-repeat;
}

@media (min-width: 560px) and (max-width: 1023px) {
  [data-section="system"] .system__sample {
    /* photo width: never past its 574px file at 2x, never taller than the screen below the nav */
    --tw: min(287px, 36vw, calc((100svh - var(--nav-h) - 48px) * .864));
    --tg: clamp(12px, 2.4vw, 24px);
    grid-template-columns: minmax(0, 1fr) var(--tw); column-gap: var(--tg); align-items: start;
  }
  [data-section="system"] .system__scene { grid-column: 1; grid-row: 1; background: none; }
  [data-section="system"] .system__bag { aspect-ratio: auto; height: calc(var(--tw) / .864); }
  [data-section="system"] .system__steps { margin: var(--tg) calc(-1 * (var(--tw) + var(--tg))) 0 0; max-width: none; }
  [data-section="system"] .system__training {
    grid-column: 2; grid-row: 1; align-self: start; justify-self: stretch;
    width: auto; max-width: none; margin: 0; outline-offset: 4px;
  }
}

@media (min-width: 1024px) {
  [data-section="system"] .system__sample {
    grid-template-columns: min(400px, 30%) minmax(0, 1fr); align-items: center; padding-bottom: clamp(40px, 5vw, 72px);
  }
  [data-section="system"] .system__scene {
    grid-column: 1 / -1; grid-row: 1; display: grid; align-content: center; justify-items: end;
    margin-left: clamp(90px, 10vw, 170px);
    min-height: clamp(600px, 50vw, 760px); padding: clamp(24px, 3.4vw, 56px);
    border-radius: var(--radius); overflow: hidden;
  }
  [data-section="system"] .system__bag { position: absolute; inset: 0; aspect-ratio: auto; z-index: -1; }
  [data-section="system"] .system__bag > img { object-position: 96% 50%; }
  [data-section="system"] .system__bag::after {
    background:
      linear-gradient(270deg, rgba(5, 5, 5, .7) 0%, rgba(5, 5, 5, 0) 46%),
      linear-gradient(0deg, rgba(5, 5, 5, .55) 0%, rgba(5, 5, 5, 0) 30%);
  }
  [data-section="system"] .system__steps { margin: 0; width: min(100%, 540px); }
  [data-section="system"] .system__training {
    grid-column: 1; grid-row: 1; width: 100%; justify-self: stretch; align-self: end;
    margin: 0 0 calc(-1 * clamp(40px, 5vw, 72px));
  }
}

/* ------------------------------------------------------------------ education accordion */
[data-section="system"] .system__edu { display: grid; gap: clamp(24px, 3vw, 40px); margin-top: clamp(96px, 12vw, 200px); }
[data-section="system"] .system__edu-head > h3 { margin-top: clamp(12px, 1.4vw, 18px); }
@media (min-width: 1024px) {
  [data-section="system"] .system__edu { grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); column-gap: clamp(40px, 6vw, 110px); align-items: start; }
  [data-section="system"] .system__edu-head { position: sticky; top: calc(var(--nav-h) + 32px); }
}
/* the education accordion shares the FAQ's look: Anton question row, muted number that turns red, square icon that
   fills blood when open, a blood bar on the plate's left edge for the open item, answers in --bone-dim */
[data-section="system"] .system__acc {
  --acc-icon: 40px; --acc-num: 30px; --acc-gap: clamp(14px, 1.8vw, 24px); --acc-pad: clamp(20px, 2.6vw, 36px);
  display: grid; padding: 6px var(--acc-pad);
}
@media (max-width: 479px) { [data-section="system"] .system__acc { --acc-icon: 36px; --acc-num: 24px; --acc-gap: 12px; --acc-pad: 16px; } }
[data-section="system"] .acc-i { position: relative; }
[data-section="system"] .acc-i + .acc-i { border-top: 1px solid var(--line-2); }
[data-section="system"] .acc-i::before {
  content: ""; position: absolute; left: calc(-1 * var(--acc-pad) - 1px); top: 14px; bottom: 14px; width: 3px;
  background: var(--blood); transform: scaleY(0); transform-origin: 50% 0; transition: transform .5s var(--ease-out);
}
[data-section="system"] .acc-i.is-open::before { transform: scaleY(1); }
[data-section="system"] .acc-i__h { margin: 0; font: inherit; text-transform: none; letter-spacing: normal; }
[data-section="system"] .acc-i__btn {
  display: grid; grid-template-columns: var(--acc-num) minmax(0, 1fr) var(--acc-icon); align-items: center; column-gap: var(--acc-gap);
  width: 100%; min-height: clamp(72px, 6vw, 96px); padding: 14px 0;
  text-align: left; color: var(--bone);
  font-family: var(--f-display); font-weight: 400; font-size: var(--fs-acc); line-height: 1.16; letter-spacing: .012em; text-transform: uppercase;
  transition: color .3s; touch-action: manipulation;
}
[data-section="system"] .acc-i__num {
  font-family: var(--f-mono); font-weight: 500; font-size: 13px; line-height: 1; letter-spacing: .12em; text-transform: none; color: var(--mute);
  transition: color .3s;
}
[data-section="system"] .acc-i__t { display: block; min-width: 0; transition: transform .45s var(--ease-out), color .3s; }
[data-section="system"] .acc-i__icon {
  position: relative; display: block; width: var(--acc-icon); height: var(--acc-icon); justify-self: end;
  border: 1px solid var(--line-2); border-radius: var(--radius);
  transition: background-color .35s var(--ease-out), border-color .35s var(--ease-out), transform .55s var(--ease-out);
}
[data-section="system"] .acc-i__icon::before, [data-section="system"] .acc-i__icon::after {
  content: ""; position: absolute; left: 50%; top: 50%; width: 14px; height: 2px; margin: -1px 0 0 -7px; background: var(--blood-hot);
  transition: transform .45s var(--ease-out), background-color .3s;
}
[data-section="system"] .acc-i__icon::after { transform: rotate(90deg); }
[data-section="system"] .acc-i.is-open .acc-i__icon { background: var(--blood); border-color: var(--blood); transform: rotate(180deg); }
[data-section="system"] .acc-i.is-open .acc-i__icon::before, [data-section="system"] .acc-i.is-open .acc-i__icon::after { background: var(--white); }
[data-section="system"] .acc-i.is-open .acc-i__icon::after { transform: rotate(90deg) scaleX(0); }
[data-section="system"] .acc-i.is-open .acc-i__num { color: var(--blood-hot); }
[data-section="system"] .acc-i.is-open .acc-i__t { color: var(--white); }
@media (hover: hover) and (pointer: fine) {
  [data-section="system"] .acc-i__btn:hover .acc-i__t { transform: translateX(8px); color: var(--white); }
  [data-section="system"] .acc-i__btn:hover .acc-i__num { color: var(--blood-hot); }
  [data-section="system"] .acc-i__btn:hover .acc-i__icon { border-color: var(--blood); }
}
[data-section="system"] .acc-i__panel { overflow: hidden; }
html.js [data-section="system"] .acc-i:not(.is-open):not(.is-closing) > .acc-i__panel { height: 0; visibility: hidden; }
[data-section="system"] .acc-i__body { padding: 0 0 clamp(22px, 2.2vw, 30px); color: var(--bone-dim); }
[data-section="system"] .acc-i__body > p { max-width: 54ch; }
@media (min-width: 640px) {
  [data-section="system"] .acc-i__body { padding-left: calc(var(--acc-num) + var(--acc-gap)); padding-right: calc(var(--acc-icon) + var(--acc-gap)); }
}

/* ------------------------------------------------------------------ CTA */
[data-section="system"] .system__cta { display: flex; }
/* size comes from .btn--lg (shared with the 5x5 CTA); left-aligned like every other CTA on the page */