/* The System: course home (exploded assembly). Page-local choreography reads --sc-p from each act;
   the engine is untouched. */

.home main { position: relative; }

/* ============================================================ 1 · hero: five planes */
.hero { perspective: 1100px; perspective-origin: 62% 46%; --mx: 0; --my: 0; }
.hero__light { position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 52% 50% at 70% 44%, rgba(55, 189, 248, 0.15), transparent 70%),
    radial-gradient(ellipse 40% 34% at 18% 70%, rgba(44, 169, 225, 0.06), transparent 70%),
    linear-gradient(180deg, #081826 0%, #07121c 52%, #040a12 100%); }
.hero__floorwrap { position: absolute; left: -25%; right: -25%; top: 58%; height: 70%; perspective: 760px; perspective-origin: 55% 0%;
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, #000 22%, #000 62%, transparent 100%); mask-image: linear-gradient(to bottom, transparent 0%, #000 22%, #000 62%, transparent 100%); }
.hero__floor { position: absolute; left: 0; right: 0; top: 0; height: 260%; transform-origin: 50% 0; opacity: 0.6;
  transform: rotateX(72deg) translate3d(calc(var(--mx) * -14px), calc(var(--sc-p, 0) * -260px), 0);
  background:
    repeating-linear-gradient(0deg, rgba(55, 189, 248, 0.2) 0 1px, transparent 1px 84px),
    repeating-linear-gradient(90deg, rgba(55, 189, 248, 0.16) 0 1px, transparent 1px 84px); }

.hero__plane { position: absolute; inset: 0; transform-style: preserve-3d; pointer-events: none;
  transform: translate3d(calc(var(--mx) * var(--pd) * -1px), calc(var(--my) * var(--pd) * -1px), 0); }
.hero__plane--far { --pd: 6; --spread: 3; --fly: 160; --o: 0.62; --fade: 0.25; }
.hero__plane--mid { --pd: 18; --spread: 9; --fly: 520; --o: 1; --fade: 0.55; }
.hero__plane--near { --pd: 38; --spread: 15; --fly: 760; --o: 0.92; --fade: 0.92; }

.chip {
  position: absolute; left: calc(var(--x) * 1%); top: calc(var(--y) * 1%); white-space: nowrap;
  transform: translate(-50%, -50%) translate3d(
    calc((var(--x) - 50) * var(--sc-p, 0) * var(--spread) * 1px),
    calc((var(--y) - 50) * var(--sc-p, 0) * var(--spread) * 1px),
    calc(var(--z) * 1px + var(--sc-p, 0) * var(--fly) * 1px));
  opacity: calc(var(--o) - var(--sc-p, 0) * var(--fade));
  font-family: var(--sc-font-mono); font-size: 0.8rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase;
  color: #9fcbe4; padding: 8px 13px; border-radius: 10px;
  background: linear-gradient(180deg, rgba(22, 48, 72, 0.6), rgba(10, 24, 38, 0.66));
  border: 1px solid rgba(55, 189, 248, 0.22);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}
.hero__plane--far .chip { filter: blur(1.1px); }
.chip--g { display: flex; flex-direction: column; gap: 4px; padding: 13px 18px 12px; border-radius: 12px; text-transform: none; letter-spacing: 0;
  background: linear-gradient(180deg, rgba(26, 56, 84, 0.78), rgba(11, 27, 42, 0.86)); border-color: rgba(55, 189, 248, 0.34);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1), 0 6px 14px -4px rgba(2, 8, 14, 0.7), 0 24px 48px -16px rgba(2, 8, 14, 0.8); }
.chip--g b { font-family: var(--sc-font-display); font-weight: 800; font-size: 1.22rem; color: #fff; letter-spacing: -0.01em; }
.chip--g small { font-family: var(--sc-font-mono); font-size: 0.66rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--sc-accent); }
.chip--near { padding: 20px 28px; filter: blur(4px); }
.chip--near b { font-size: 2rem; }

.hero__copy.sc-copy { inset-inline: auto; left: var(--sc-gutter); top: 27vh; bottom: auto; max-width: min(44rem, 52vw); z-index: 5; }
.hero__title { font-family: var(--sc-font-display); font-weight: 900; text-transform: uppercase; margin: 0;
  font-size: clamp(3rem, 1.4rem + 5.6vw, 7.2rem); line-height: 0.9; letter-spacing: -0.04em; }
.hero__title .c { display: inline-block; }
.hero__sub { margin: 1.6rem 0 0; max-width: 31ch; font-size: clamp(1.08rem, 0.98rem + 0.4vw, 1.32rem); line-height: 1.5; color: #c9d6e4; font-weight: 500; text-wrap: pretty; }
.hero__act { margin: 2rem 0 0; display: flex; flex-wrap: wrap; align-items: center; gap: 14px 22px; }
.hero__next { font-family: var(--sc-font-mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ts-dim); }
.hero__next:empty { display: none; }

@media (max-width: 860px) {
  .hero { perspective-origin: 50% 30%; }
  .chip { left: calc((var(--x) - 34) * 1.52%); top: calc(7% + var(--y) * 0.5%); font-size: 0.68rem; padding: 6px 10px; }
  .chip--g { padding: 9px 12px; }
  .chip--g b { font-size: 0.98rem; }
  .chip--g small { font-size: 0.58rem; }
  .chip--near b { font-size: 1.4rem; }
  .chip--near { padding: 14px 18px; }
  .hero__floorwrap { top: 34%; }
  .hero__copy.sc-copy { top: auto; bottom: 7svh; left: var(--sc-gutter); right: var(--sc-gutter); max-width: none; }
  .hero__title { font-size: clamp(2.7rem, 1rem + 9.4vw, 4.4rem); }
  .hero__sub { font-size: 1.04rem; margin-top: 1.1rem; }
  .hero__act { margin-top: 1.4rem; }
  .hero__plane--near .chip:nth-child(n+2), .hero__plane--mid .chip:nth-child(5) { display: none; }
  .hero__plane--mid, .hero__plane--far { --spread: 4; }
  .chip { translate: 0 calc(var(--sc-p, 0) * -18vh); }
}

/* ============================================================ 2 · candour: the wipe */
.trade { display: grid; align-content: center; padding: var(--ts-bar-h) var(--sc-gutter) 0;
  background: radial-gradient(ellipse 50% 60% at 22% 48%, rgba(55, 189, 248, 0.05), transparent 70%), var(--sc-canvas); }
.trade__line { position: relative; width: max-content; max-width: 100%; }
.trade__w { margin: 0; font-family: var(--sc-font-display); font-weight: 900; text-transform: uppercase;
  font-size: clamp(2.7rem, 0.9rem + 6.6vw, 7.6rem); line-height: 0.92; letter-spacing: -0.04em; padding: 0.04em 0.06em 0.08em 0; }
.trade__w--top { position: absolute; inset: 0; }
.trade__edge { position: absolute; top: -6%; bottom: -6%; left: 0; width: 3px; border-radius: 2px; background: var(--sc-accent); opacity: 0; will-change: transform, opacity; }
.trade__edge::after { content: ""; position: absolute; left: -46px; width: 46px; top: 0; bottom: 0; background: linear-gradient(90deg, transparent, rgba(55, 189, 248, 0.16)); }
.trade__note { margin: clamp(1.8rem, 4vh, 3rem) 0 0; max-width: 34em; font-size: clamp(1.08rem, 0.98rem + 0.45vw, 1.35rem); line-height: 1.55; color: #c9d6e4; font-weight: 500; text-wrap: pretty; }
@media (prefers-reduced-motion: reduce) { .trade__w--base { visibility: hidden; } .trade__edge { display: none; } }

/* ============================================================ 3 · clarity: the scrubbed chapter 1 video */
.model { display: grid; grid-template-rows: auto auto; align-content: center; justify-items: start; gap: clamp(1.4rem, 3.4vh, 2.6rem);
  padding: calc(var(--ts-bar-h) + 2vh) var(--sc-gutter) 3vh; perspective: 1600px; perspective-origin: 50% 0%;
  background: radial-gradient(ellipse 60% 50% at 50% 70%, rgba(55, 189, 248, 0.09), transparent 70%), var(--sc-canvas); }
.model__copy { position: relative; display: grid; grid-template-columns: minmax(0, 54rem); gap: 0.7rem; }
.model__copy .label { grid-column: 1 / -1; }
.model__copy .label a { color: var(--sc-accent); text-decoration: none; }
.model__title { font-family: var(--sc-font-display); font-weight: 850; font-size: clamp(1.9rem, 1.2rem + 2.2vw, 3.1rem); line-height: 1.04; letter-spacing: -0.03em; margin: 0; text-wrap: balance; }
.model__body { margin: 0; color: #c9d6e4; font-size: 1.06rem; line-height: 1.6; max-width: 58ch; text-wrap: pretty; }
.model__screen { margin: 0; width: min(100%, calc((100svh - var(--ts-bar-h) - 19rem) * 8 / 3)); justify-self: center; transform: rotateX(9deg); transform-origin: 50% 100%; }
.model__frame { position: relative; aspect-ratio: 8 / 3; border-radius: 14px; overflow: hidden; background: #07121c;
  border: 1px solid rgba(55, 189, 248, 0.34);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1), 0 18px 30px -8px rgba(2, 8, 14, 0.7), 0 60px 90px -30px rgba(2, 8, 14, 0.85); }
.model__screen figcaption { margin-top: 14px; color: var(--ts-dim); }
@media (max-width: 860px) {
  .model { gap: 1.6rem; padding-top: calc(var(--ts-bar-h) + 3vh); }
  .model__copy { grid-template-columns: 1fr; }
  .model__screen { order: -1; width: calc(100% + var(--sc-gutter)); margin-left: calc(var(--sc-gutter) * -0.5); transform: rotateX(6deg); }
  .model__frame { aspect-ratio: 8 / 3.2; }
  .model__body { font-size: 1.02rem; }
  .model__title { font-size: 2rem; }
}

/* ============================================================ 4 · breadth: the module rail */
.parts { display: flex; align-items: center; padding-top: calc(var(--ts-bar-h) + 1vh);
  background: linear-gradient(180deg, var(--sc-canvas), #061019); }
.parts__rail { gap: 18px; padding: 0 var(--sc-gutter); align-items: stretch; height: min(78svh, 700px); }
.parts__lead { flex: 0 0 min(27rem, 78vw); display: flex; flex-direction: column; justify-content: center; padding-right: 2rem; }
.parts__title { font-family: var(--sc-font-display); font-weight: 900; text-transform: uppercase; font-size: clamp(2.3rem, 1.2rem + 3.4vw, 4.4rem); line-height: 0.92; letter-spacing: -0.035em; margin: 0; }
.parts__body { margin: 1.2rem 0 0; color: #c9d6e4; font-size: 1.06rem; line-height: 1.6; max-width: 30ch; }
.parts__col { flex: 0 0 clamp(17rem, 21vw, 21.5rem); display: grid; grid-template-rows: 1fr 1fr; gap: 16px; }
.part { position: relative; display: flex; flex-direction: column; min-height: 0; padding: 12px 14px 14px; border-radius: 14px;
  background: linear-gradient(180deg, rgba(20, 44, 66, 0.62), rgba(9, 22, 34, 0.8)); border: 1px solid rgba(55, 189, 248, 0.18);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), 0 14px 30px -18px rgba(0, 0, 0, 0.8); }
.part__img { display: block; aspect-ratio: 8 / 3; border-radius: 8px; overflow: hidden; border: 1px solid rgba(55, 189, 248, 0.14); flex: none; }
.part__img img { width: 100%; height: 100%; object-fit: cover; object-position: 0% 42%; }
.part__no { margin-top: 12px; font-size: 0.66rem; color: var(--sc-accent); }
.part__name { font-family: var(--sc-font-display); font-weight: 800; font-size: 1.3rem; letter-spacing: -0.015em; margin: 4px 0 8px; line-height: 1.15; }
.part__name a { text-decoration: none; }
.part__name a::after { content: ""; position: absolute; inset: 0; border-radius: 14px; }
.part:hover { border-color: rgba(55, 189, 248, 0.4); }
.part__ch { list-style: none; margin: auto 0 0; padding: 0; display: grid; gap: 1px; position: relative; z-index: 1; }
.part__ch a { display: grid; grid-template-columns: 1.8rem 1fr; gap: 6px; padding: 4px 0; font-size: 0.82rem; line-height: 1.35; color: #c3d0de; text-decoration: none; font-weight: 500; }
.part__ch a:hover { color: #fff; }
.part__ch .n { font-family: var(--sc-font-mono); font-size: 0.72rem; color: var(--ts-dim); padding-top: 1px; }
.part__ch a.is-done .n { color: var(--sc-accent); }
.parts__end { flex: 0 0 min(28rem, 82vw); display: flex; flex-direction: column; justify-content: center; padding: 0 4vw 0 3rem; }
.parts__end p { margin: 0; font-family: var(--sc-font-display); font-weight: 700; font-size: clamp(1.4rem, 1rem + 1.2vw, 2.1rem); line-height: 1.2; letter-spacing: -0.02em; color: #c9d6e4; }
.parts__end p + p { margin-top: 0.4em; color: var(--sc-accent); }
@media (max-width: 860px) {
  .parts__rail { height: min(80svh, 680px); gap: 12px; }
  .parts__col { flex-basis: 74vw; gap: 12px; }
  .part { padding: 10px 12px 10px; }
  .part__name { font-size: 1.1rem; margin-bottom: 4px; }
  .part__ch a { font-size: 0.78rem; padding: 3px 0; }
  .part__no { margin-top: 8px; }
}
@media (prefers-reduced-motion: no-preference) {
  .parts__col { opacity: calc(0.55 + 0.45 * clamp(0, (var(--sc-p, 0) * 9 - var(--k, 0)), 1)); }
}
@media (prefers-reduced-motion: reduce) {
  .parts__rail { height: auto; min-height: min(78svh, 700px); }
}

/* ============================================================ 5 · the peak: power on */
.power { display: grid; place-items: center; overflow: clip;
  background: radial-gradient(ellipse 46% 52% at 50% 50%, rgba(55, 189, 248, calc(0.03 + var(--glow, 0) * 0.12)), transparent 72%), #050e17; }
.power__floorwrap { position: absolute; left: -20%; right: -20%; top: 62%; height: 60%; perspective: 700px; perspective-origin: 50% 0;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 30%, transparent 100%); mask-image: linear-gradient(to bottom, transparent, #000 30%, transparent 100%); }
.power__floor { position: absolute; inset: 0 0 -120% 0; transform-origin: 50% 0; transform: rotateX(74deg); opacity: 0.35;
  background: repeating-linear-gradient(0deg, rgba(55, 189, 248, 0.2) 0 1px, transparent 1px 80px), repeating-linear-gradient(90deg, rgba(55, 189, 248, 0.16) 0 1px, transparent 1px 80px); }
.power__ring { --D: min(70svh, 56vw); position: relative; width: var(--D); height: var(--D); perspective: 900px; transform-style: preserve-3d; margin-top: calc(var(--ts-bar-h) * 0.4); }
.power__svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.power__track { fill: none; stroke: rgba(55, 189, 248, 0.1); stroke-width: 0.6; }
.power__draw { fill: none; stroke: rgba(55, 189, 248, 0.55); stroke-width: 0.7; stroke-dasharray: 1 1; stroke-dashoffset: 1; transform: rotate(-90deg); }
.power__lit { fill: none; stroke: var(--sc-accent); stroke-width: 2.2; stroke-linecap: round; stroke-dasharray: 0 1; transform: rotate(-90deg); opacity: 0.85; }
.power__pulse { fill: #fff; opacity: 0; }
.pnode { position: absolute; left: 50%; top: 50%; display: flex; flex-direction: column; align-items: flex-start; gap: 2px; padding: 9px 13px 10px; border-radius: 11px; white-space: nowrap;
  background: linear-gradient(180deg, rgba(22, 48, 72, 0.82), rgba(10, 24, 38, 0.9)); border: 1px solid rgba(55, 189, 248, 0.22);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.07), 0 10px 22px -10px rgba(0, 0, 0, 0.8);
  transition: border-color 260ms var(--sc-ease-out), background-color 260ms var(--sc-ease-out); will-change: transform, opacity; }
.pnode__no { font-family: var(--sc-font-mono); font-size: 0.66rem; letter-spacing: 0.14em; color: var(--ts-dim); }
.pnode__nm { font-family: var(--sc-font-display); font-weight: 750; font-size: 0.9rem; color: #c9d6e4; letter-spacing: -0.005em; }
.pnode.is-lit { border-color: var(--sc-accent); background: linear-gradient(180deg, rgba(36, 104, 140, 0.9), rgba(12, 44, 66, 0.92)); }
.pnode.is-lit .pnode__no { color: var(--sc-accent); }
.pnode.is-lit .pnode__nm { color: #fff; }
.pnode.is-hot { border-color: #fff; }
.power__center { position: absolute; left: 50%; top: calc(50% + var(--ts-bar-h) * 0.2); translate: -50% -50%; width: min(19rem, 40vw); text-align: center; pointer-events: none; }
.power__a, .power__b { position: absolute; left: 0; right: 0; top: 50%; translate: 0 -50%; margin: 0; }
.power__a { font-family: var(--sc-font-display); font-weight: 700; font-size: clamp(1.4rem, 1rem + 1.4vw, 2.2rem); color: #c9d6e4; letter-spacing: -0.02em; }
.power__b { font-family: var(--sc-font-display); font-weight: 900; text-transform: uppercase; font-size: clamp(2.2rem, 1.2rem + 2.6vw, 3.6rem); line-height: 0.92; letter-spacing: -0.04em; }
.power__you { position: absolute; left: 50%; bottom: 5svh; translate: -50% 0; width: min(36rem, calc(100% - 2 * var(--sc-gutter))); margin: 0; text-align: center;
  font-size: clamp(1.05rem, 0.95rem + 0.4vw, 1.3rem); line-height: 1.5; color: #dfe7f0; font-weight: 550; text-wrap: balance; }
.power__read { position: absolute; left: 50%; bottom: 6svh; translate: -50% 0; color: var(--sc-accent); white-space: nowrap; transition: opacity 200ms var(--sc-ease-out); }
@media (max-width: 860px) {
  .power__ring { --D: min(92vw, 50svh); margin-top: 0; }
  .pnode { padding: 0; width: 34px; height: 34px; border-radius: 50%; align-items: center; justify-content: center; }
  .pnode__nm { display: none; }
  .pnode__no { font-size: 0.68rem; letter-spacing: 0; color: #c9d6e4; }
  .power__center { width: 56vw; top: 50%; }
  .power__b { font-size: clamp(1.7rem, 1rem + 4vw, 2.4rem); }
  .power__a { font-size: 1.3rem; }
  .power__you { bottom: 4svh; font-size: 1rem; }
  .power__read { bottom: 9svh; }
}

/* ============================================================ 6 · your machine (close) */
.a-yours { position: relative; padding: calc(var(--ts-bar-h) + 7vh) var(--sc-gutter) 0;
  background: radial-gradient(ellipse 50% 46% at 28% 40%, rgba(55, 189, 248, 0.08), transparent 70%), linear-gradient(180deg, #050e17, var(--sc-canvas) 40%); }
.yours { max-width: 76rem; margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 5rem); align-items: center; min-height: calc(100svh - var(--ts-bar-h) - 14vh); }
.yours__ring [data-machine] { width: min(100%, 36rem); aspect-ratio: 1; margin: 0 auto; }
.yours__title { font-family: var(--sc-font-display); font-weight: 850; font-size: clamp(2rem, 1.3rem + 2.4vw, 3.3rem); line-height: 1.04; letter-spacing: -0.03em; margin: 0; text-wrap: balance; }
.yours__panel > .label:first-child { color: var(--sc-accent); }
.yours__panel.sc-stack > .yours__title { margin-top: 0.7rem; }
.yours__body { color: #c9d6e4; font-size: 1.1rem; line-height: 1.6; max-width: 36ch; margin: 0; }
.yours__go { margin-top: 1.8rem !important; display: grid; gap: 12px; justify-items: start; }
.yours__next:empty { display: none; }
.yours__search { margin-top: 2.2rem !important; display: grid; gap: 10px; max-width: 26rem; }
.yours__field { display: flex; align-items: center; gap: 10px; padding: 0 14px; border-radius: 12px; background: rgba(13, 32, 49, 0.75); border: 1px solid rgba(55, 189, 248, 0.3); }
.yours__field:focus-within { border-color: var(--sc-accent); }
.yours__field svg { width: 18px; height: 18px; fill: none; stroke: var(--sc-accent); stroke-width: 1.8; stroke-linecap: round; flex: none; }
.yours__field input { flex: 1; min-width: 0; height: 50px; background: transparent; border: 0; outline: 0; font-size: 1.02rem; font-weight: 550; color: var(--sc-ink); }
.yours__field input::placeholder { color: var(--ts-dim); }
.yours__links { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 1.6rem !important; }
.yours__links a { font-family: var(--sc-font-mono); font-size: 0.74rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--sc-ink-soft); }
.yours__links a:hover { color: var(--sc-ink); }

.contents { max-width: 76rem; margin: clamp(3rem, 8vh, 5rem) auto 0; border-top: 1px solid var(--ts-line); }
.contents summary { cursor: pointer; list-style: none; padding: 22px 0; display: flex; align-items: center; justify-content: space-between; }
.contents summary::-webkit-details-marker { display: none; }
.contents summary::after { content: "+"; font-family: var(--sc-font-mono); color: var(--sc-accent); font-size: 1.2rem; }
.contents[open] summary::after { content: "−"; }
.contents summary:hover .label { color: var(--sc-ink); }
.contents .toc-all { padding: 0 0 2rem; columns: 3 17rem; column-gap: 3rem; }
.contents .toc-all__mod { break-inside: avoid; }
.hfoot { max-width: 76rem; margin: 0 auto; padding: 22px 0 36px; border-top: 1px solid var(--ts-line); font-family: var(--sc-font-mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ts-dim); }
.hfoot p { margin: 0; }
@media (max-width: 860px) {
  .a-yours { padding-top: calc(var(--ts-bar-h) + 4vh); }
  .yours { grid-template-columns: 1fr; min-height: 0; gap: 1.5rem; }
  .yours__ring [data-machine] { width: min(84vw, 24rem); }
}

@media (prefers-reduced-motion: reduce) {
  .chip { transform: translate(-50%, -50%) translate3d(0, 0, calc(var(--z) * 1px)); opacity: var(--o); translate: none; }
  .hero__floor { transform: rotateX(72deg); }
  .hero__plane { transform: none; }
}

/* public landing: the reference line under the close is plain information, not links */
.yours__links span { font-family: var(--sc-font-mono); font-size: 0.74rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ts-dim); }

/* ============================================================ 1b · teaser (flow act, between the hero and the candour pin) */
.a-teaser { position: relative; padding: calc(var(--ts-bar-h) + clamp(1.5rem, 5vh, 3.5rem)) var(--sc-gutter) clamp(4.5rem, 12vh, 8rem);
  background: radial-gradient(ellipse 60% 46% at 50% 58%, rgba(55, 189, 248, 0.09), transparent 72%), linear-gradient(180deg, #040a12 0%, #06101a 50%, #050e17 100%); }
.teaser { max-width: min(72rem, calc((100svh - var(--ts-bar-h) - 9.5rem) * 16 / 9)); margin: 0 auto; }
.teaser__title { margin: 0 0 clamp(1.25rem, 3vw, 2rem); font-family: var(--sc-font-display); font-weight: 850; font-size: clamp(1.6rem, 1.2rem + 1.8vw, 2.6rem); line-height: 1.08; letter-spacing: -0.03em; text-wrap: balance; }
.teaser__frame { position: relative; margin: 0; aspect-ratio: 16 / 9; border-radius: var(--ts-r); overflow: hidden; background: #050d15;
  border: 1px solid var(--ts-line-2);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 4px 10px rgba(2, 8, 14, 0.35), 0 40px 90px -30px rgba(2, 8, 14, 0.95), 0 0 0 1px rgba(4, 10, 18, 0.6); }
.teaser__video { display: block; width: 100%; height: 100%; object-fit: cover; background: #050d15; }
.teaser__sound { position: absolute; left: 14px; bottom: 14px; z-index: 2; display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 14px 0 11px; border-radius: 10px; cursor: pointer;
  background: rgba(4, 10, 18, 0.78); border: 1px solid var(--ts-line-2); color: var(--sc-ink);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  font-family: var(--sc-font-mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase;
  transition: background-color 160ms var(--sc-ease-out), border-color 160ms var(--sc-ease-out), transform 120ms var(--sc-ease-out), opacity 200ms var(--sc-ease-out); }
.teaser__sound svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.teaser__sound .spk { fill: currentColor; stroke: none; }
.teaser__sound .on { display: none; }
.teaser__sound[aria-pressed="true"] .on { display: inline; }
.teaser__sound[aria-pressed="true"] .off { display: none; }
.teaser__sound[aria-pressed="true"] { border-color: var(--sc-accent); color: var(--sc-accent); }
.teaser__sound:active { transform: translateY(1px) scale(0.98); }
.teaser__sound:focus-visible, .teaser__play:focus-visible { outline: 2px solid var(--sc-accent); outline-offset: 3px; }
@media (hover: hover) and (pointer: fine) { .teaser__sound:hover { background: rgba(13, 32, 49, 0.92); border-color: var(--sc-accent); } }
/* once native controls are showing, the toggle steps up out of their way */
.teaser__frame.has-controls .teaser__sound { bottom: auto; top: 14px; }
.teaser__play { position: absolute; left: 50%; top: 50%; translate: -50% -50%; z-index: 2; width: 84px; height: 84px; border-radius: 50%; border: 0; cursor: pointer;
  background: var(--sc-accent); box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5), 0 14px 34px -10px rgba(2, 8, 14, 0.95); transition: transform 140ms var(--sc-ease-out), background-color 160ms var(--sc-ease-out); }
.teaser__play span { position: absolute; left: 54%; top: 50%; translate: -50% -50%; border-style: solid; border-width: 14px 0 14px 22px; border-color: transparent transparent transparent var(--sc-accent-ink); }
.teaser__play[hidden] { display: none; }
.teaser__play:active { transform: scale(0.97); }
@media (hover: hover) and (pointer: fine) { .teaser__play:hover { background: #63ccfa; } }
.teaser__cap { margin: 14px 0 0; color: var(--ts-dim); }
.teaser__cap a { color: var(--sc-ink-soft); }
.teaser__cap a:hover { color: var(--sc-accent); }
@media (max-width: 600px) {
  .a-teaser { padding-left: 0; padding-right: 0; }
  .teaser__title { padding: 0 var(--sc-gutter); }
  .teaser__frame { border-radius: 0; border-left: 0; border-right: 0; }
  .teaser__cap { padding: 0 var(--sc-gutter); }
  .teaser__sound { left: 8px; bottom: 8px; height: 30px; padding: 0 10px 0 8px; gap: 6px; font-size: 0.62rem; letter-spacing: 0.1em; }
  .teaser__sound svg { width: 15px; height: 15px; }
  .teaser__frame.has-controls .teaser__sound { top: 10px; }
  .teaser__play { width: 68px; height: 68px; }
}