/* Mega menu + cube burger. The panel assembles from flipping tiles, same "parts snap together" language as the
   hero cube and the letter headlines. Above 1140px: three columns; below: the same markup as an accordion. */

html { scrollbar-gutter: stable; }
body.is-menu-open { overflow: hidden; }
/* The burger lives in the topbar, above the panel, so it can close the menu. */
body.is-menu-open .sp-topbar,
body.is-menu-open .sp-topbar.scrolled {
  z-index: 56;
  background: transparent;
  border-bottom-color: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.sp-topbar .right .meta { transition: opacity var(--dur-sm) var(--ease-cinema); }
body.is-menu-open .sp-topbar .sp-btn--desktop,
body.is-menu-open .sp-topbar .right .meta { opacity: 0; pointer-events: none; }
.sp-topbar .sp-btn--desktop { transition: background var(--dur-sm) var(--ease-cinema), color var(--dur-sm), transform var(--dur-sm) var(--ease-soft), opacity var(--dur-sm) var(--ease-cinema); }

/* ---------- Burger: a small cube, burger on one face, the close mark on the next ---------- */
body button.sp-burger,
body button.sp-burger:hover,
body button.sp-burger:focus {
  display: inline-flex; align-items: center; gap: 12px;
  flex-shrink: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--sp-paper);
  cursor: pointer;
}
.sp-burger__label {
  display: block; height: 22px; overflow: hidden;
  font-family: var(--ff-display); font-size: 16px; font-weight: 500; line-height: 22px;
  text-align: end;
}
.sp-burger__label > span {
  display: block;
  transition: transform var(--dur-sm) var(--ease-snap);
}
.sp-burger.is-open .sp-burger__label > span { transform: translateY(-100%); }
.sp-burger__scene { display: block; width: 46px; height: 46px; perspective: 240px; }
.sp-burger__cube {
  position: relative; display: block; width: 100%; height: 100%;
  transform-style: preserve-3d;
  transform: translateZ(-23px);
  transition: transform .62s var(--ease-cinema);
}
.sp-burger:hover .sp-burger__cube { transform: translateZ(-23px) rotateX(-12deg) rotateY(26deg); }
.sp-burger.is-open .sp-burger__cube { transform: translateZ(-23px) rotateY(90deg); }
.sp-burger.is-open:hover .sp-burger__cube { transform: translateZ(-23px) rotateX(-10deg) rotateY(68deg); }
.sp-burger__face {
  position: absolute; inset: 0;
  display: block;
  background: var(--sp-ink-2);
  border: 1px solid var(--sp-line-strong);
  transform: translateZ(23px);
  backface-visibility: hidden;
}
.sp-burger__face--x {
  background: var(--sp-coral);
  border-color: var(--sp-coral);
  transform: rotateY(-90deg) translateZ(23px);
}
.sp-burger__face i {
  position: absolute; inset-inline: 12px; top: 50%;
  height: 2px; margin-top: -1px;
  background: var(--sp-paper);
  transition: transform var(--dur-sm) var(--ease-cinema);
}
.sp-burger__face i:first-child { transform: translateY(-5px); }
.sp-burger__face i:last-child { transform: translateY(5px) scaleX(.6); transform-origin: left center; }
.sp-burger:hover .sp-burger__face i:last-child { transform: translateY(5px); }
.sp-burger__face--x i { background: var(--sp-ink); }
.sp-burger__face--x i:first-child { transform: rotate(45deg); }
.sp-burger__face--x i:last-child,
.sp-burger:hover .sp-burger__face--x i:last-child { transform: rotate(-45deg); transform-origin: center; }
.sp-burger:focus-visible { outline: 2px solid var(--sp-coral); outline-offset: 4px; }

/* ---------- Panel ---------- */
.spm {
  position: fixed; inset: 0;
  z-index: 55;
  visibility: hidden;
  pointer-events: none;
  color: var(--sp-paper);
}
.spm.is-open, .spm.is-closing { visibility: visible; }
.spm.is-open { pointer-events: auto; }
.spm.is-settled { background: var(--sp-ink); }

.spm__tiles {
  position: absolute; inset: 0;
  /* Tile delays are computed left to right. */
  direction: ltr;
  display: grid;
  grid-template-columns: repeat(var(--cols, 7), 1fr);
  grid-template-rows: repeat(var(--rows, 4), 1fr);
}
.spm__tiles i {
  position: relative; display: block;
  margin: -1px;
  background: var(--sp-ink);
  /* Own perspective per tile: with a shared one, edge-on tiles far from the centre would still cover the page. */
  transform: perspective(900px) rotateY(-90deg);
  transition: transform .5s var(--ease-snap) var(--dc, 0ms);
}
.spm__tiles i::after {
  content: ""; position: absolute; inset: 0;
  background: var(--sp-coral);
  opacity: 0;
}
.spm.is-open .spm__tiles i {
  transform: perspective(900px) rotateY(0deg);
  transition: transform .56s var(--ease-cinema) var(--d, 0ms);
}
.spm.is-open .spm__tiles i::after { animation: spm-flash .6s ease-out var(--d, 0ms) both; }
@keyframes spm-flash { 0% { opacity: .7; } 100% { opacity: 0; } }
.spm.is-settled .spm__tiles { visibility: hidden; }

.spm__body {
  --gap: clamp(24px, 3vw, 56px);
  position: absolute; inset: 0;
  display: grid; grid-template-rows: minmax(0, 1fr) auto;
  gap: 20px;
  padding: 104px clamp(20px, 5vw, 80px) 22px;
  overflow-x: hidden; overflow-y: auto;
  overscroll-behavior: contain;
  opacity: 0;
  transition: opacity .18s linear;
}
.spm.is-open .spm__body { opacity: 1; transition: opacity .3s linear .22s; }
body.admin-bar .spm__body { padding-top: 136px; }

.spm__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 4.4fr) minmax(0, 2.6fr);
  gap: var(--gap);
  min-height: 0;
}

/* Top-level list */
.spm__nav { grid-column: 1; min-width: 0; }
.spm__list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; height: 100%; justify-content: space-between; }
.spm__row { display: flex; align-items: baseline; gap: 18px; }
.spm__num {
  flex: none; width: 26px;
  font-family: var(--ff-mono); font-size: 13px; letter-spacing: .08em;
  color: var(--sp-paper-mute);
  transition: color var(--dur-xs) var(--ease-snap);
}
.spm__link {
  display: inline-block;
  font-family: var(--ff-display); font-weight: 800;
  font-size: clamp(30px, min(6.1vh, 3.7vw), 62px);
  line-height: 1.16; letter-spacing: -.02em;
  white-space: nowrap;
  color: var(--sp-paper);
  transition: color var(--dur-xs) var(--ease-snap), opacity var(--dur-xs) var(--ease-snap), transform var(--dur-sm) var(--ease-cinema);
}
.spm__item:not(.is-active) .spm__link { opacity: .42; }
.spm__item.is-active .spm__link { transform: translateX(-10px); }
.spm__item.is-active .spm__num { color: var(--sp-coral); }
.spm .spm__link:hover, .spm .spm__link:focus { color: var(--sp-paper); }
.spm__link:focus-visible { outline: 2px solid var(--sp-coral); outline-offset: 4px; }

/* Letters: a tighter scatter than the page headlines, replayed on every opening. */
.spm .sp-asm-l {
  transform: translate(calc(var(--tx) * .42), calc(var(--ty) * .42)) rotate(var(--rot)) scale(var(--sc));
  opacity: 0;
  filter: none;
  transition: transform .2s linear, opacity .14s linear;
  will-change: auto;
}
.spm.is-open .sp-asm-l {
  transform: none;
  opacity: 1;
  transition:
    transform .74s cubic-bezier(.16,.84,.3,1) calc(var(--d) * .55 + .3s),
    opacity .4s ease-out calc(var(--d) * .55 + .3s);
}

/* Sub-panel: sits in the second column, stays next to its item in the markup for keyboard order. */
.spm__sub {
  position: absolute; top: 0; bottom: 0;
  inset-inline-start: calc((100% - 2 * var(--gap)) * 5 / 12 + var(--gap));
  width: calc((100% - 2 * var(--gap)) * 4.4 / 12);
  visibility: hidden;
  pointer-events: none;
}
.spm__item.is-active .spm__sub { visibility: inherit; pointer-events: auto; }
.spm__desc {
  margin: 0 0 22px;
  font-size: clamp(18px, 1.45vw, 21px); line-height: 1.5;
  color: var(--sp-paper-dim);
}
.spm__cols { display: flex; gap: clamp(24px, 3vw, 48px); align-items: flex-start; }
.spm__group { flex: 1 1 0; min-width: 0; }
.spm__gtitle {
  margin: 0 0 10px; padding-bottom: 8px;
  border-bottom: 1px solid var(--sp-line);
  font-size: 15px; font-weight: 500;
  color: var(--sp-coral);
}
.spm__gtitle a { color: inherit; }
.spm__links { list-style: none; margin: 0; padding: 0; }
.spm__links a {
  position: relative; display: inline-block;
  padding: 4px 0;
  font-size: clamp(17px, 2.35vh, 19px); line-height: 1.3;
  color: var(--sp-paper);
  transition: color var(--dur-xs) var(--ease-snap), transform var(--dur-xs) var(--ease-snap);
}
.spm__links a::before {
  content: ""; position: absolute; inset-inline-start: -16px; top: 50%;
  width: 10px; height: 1px;
  background: var(--sp-coral);
  transform: scaleX(0); transform-origin: right center;
  transition: transform var(--dur-xs) var(--ease-snap);
}
.spm__links a:hover, .spm__links a:focus-visible, .spm__links a[aria-current] { color: var(--sp-coral); transform: translateX(-6px); }
.spm__links a:hover::before, .spm__links a:focus-visible::before { transform: scaleX(1); }
.spm__go, .spm__all {
  display: inline-flex; align-items: center; gap: 10px;
  margin-top: 20px;
  font-size: 17px; font-weight: 500;
  color: var(--sp-paper);
  border-bottom: 1px solid var(--sp-line-strong);
  padding-bottom: 3px;
  transition: color var(--dur-xs) var(--ease-snap), border-color var(--dur-xs) var(--ease-snap);
}
.spm__go .arrow, .spm__all .arrow { transition: transform var(--dur-sm) var(--ease-cinema); }
.spm__go:hover, .spm__all:hover { color: var(--sp-coral); border-color: var(--sp-coral); }
.spm__go:hover .arrow, .spm__all:hover .arrow { transform: translateX(-6px); }

/* Sub-panel content arrives in a short cascade each time the active item changes. */
.spm__sub-in > *, .spm__links li, .spm__gtitle { opacity: 0; transform: translateY(10px); }
.spm__item.is-active .spm__sub-in > *,
.spm__item.is-active .spm__links li,
.spm__item.is-active .spm__gtitle {
  opacity: 1; transform: none;
  transition: opacity .34s ease-out, transform .46s var(--ease-cinema);
}
.spm__item.is-active .spm__links li { transition-delay: calc(var(--i, 0) * 16ms + 60ms); }

/* Thread between the active item and its panel */
.spm__thread { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; pointer-events: none; }
.spm__thread path {
  fill: none; stroke: var(--sp-coral); stroke-width: 1.25;
  stroke-dasharray: 1; stroke-dashoffset: 1;
  transition: stroke-dashoffset .56s var(--ease-cinema);
  filter: drop-shadow(0 0 5px var(--sp-coral-glow));
}
.spm__thread circle { fill: var(--sp-coral); opacity: 0; transition: opacity .2s linear .42s; }

/* Project cube */
.spm__stage {
  --c: clamp(150px, min(17vw, 31vh), 270px);
  grid-column: 3; min-width: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center;
  opacity: 0; transform: scale(.82);
  transition: opacity .18s linear, transform .18s linear;
}
.spm.is-open .spm__stage { opacity: 1; transform: none; transition: opacity .5s ease-out .42s, transform .9s var(--ease-cinema) .42s; }
.spm__stage-label { margin: 0 0 clamp(20px, 5vh, 46px); font-size: 15px; color: var(--sp-paper-mute); }
.spm__cube-link { display: flex; flex-direction: column; align-items: center; color: var(--sp-paper); }
.spm__scene {
  position: relative; display: block;
  width: var(--c); height: var(--c);
  perspective: 1000px;
}
.spm__scene::after {
  content: ""; position: absolute; inset-inline: 2%; bottom: -22%; height: 14%;
  background: radial-gradient(50% 50% at 50% 50%, rgba(255,122,89,.26), transparent 72%);
}
.spm__cube {
  position: relative; display: block; width: 100%; height: 100%;
  transform-style: preserve-3d;
  transform: translateZ(calc(var(--c) / -2)) rotateX(-13deg) rotateY(calc(var(--spin, 0deg) - 24deg));
  transition: transform .95s var(--ease-cinema);
}
.spm.is-open .spm__scene { animation: spm-float 7s ease-in-out infinite; }
@keyframes spm-float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.spm__face {
  position: absolute; inset: 0; display: block;
  background: var(--sp-ink-3) center top / cover no-repeat;
  border: 1px solid var(--sp-line-strong);
  backface-visibility: hidden;
}
.spm__face:nth-child(1) { transform: translateZ(calc(var(--c) / 2)); }
.spm__face:nth-child(2) { transform: rotateY(90deg) translateZ(calc(var(--c) / 2)); }
.spm__face:nth-child(3) { transform: rotateY(180deg) translateZ(calc(var(--c) / 2)); }
.spm__face:nth-child(4) { transform: rotateY(270deg) translateZ(calc(var(--c) / 2)); }
.spm__face--top {
  transform: rotateX(90deg) translateZ(calc(var(--c) / 2));
  background: linear-gradient(135deg, var(--sp-ink-3), var(--sp-ink));
}
.spm__cube-name {
  margin-top: clamp(30px, 6vh, 52px);
  font-size: 19px; font-weight: 600;
  transition: color var(--dur-xs) var(--ease-snap);
}
.spm__cube-link:hover .spm__cube-name { color: var(--sp-coral); }
.spm__all { margin-top: 10px; font-size: 16px; color: var(--sp-paper-dim); }

/* Contact strip */
.spm__foot {
  display: flex; align-items: center; gap: clamp(24px, 4vw, 64px);
  padding-top: 16px;
  border-top: 1px solid var(--sp-line);
  opacity: 0; transform: translateY(12px);
  transition: opacity .16s linear, transform .16s linear;
}
.spm.is-open .spm__foot { opacity: 1; transform: none; transition: opacity .5s ease-out .6s, transform .7s var(--ease-cinema) .6s; }
.spm__channel { display: flex; flex-direction: column; gap: 1px; font-size: 18px; line-height: 1.35; }
.spm__channel a { color: var(--sp-paper); transition: color var(--dur-xs) var(--ease-snap); }
.spm__channel a:hover { color: var(--sp-coral); }
.spm__channel-label { font-size: 14px; color: var(--sp-paper-mute); }
.spm__cta { margin-inline-start: auto; padding: 12px 20px; }

/* ---------- Accordion below the wide breakpoint ---------- */
.spm__toggle { display: none; }
/* Short wide windows: the longest panel has to stay above the footer strip. */
@media (min-width: 1141px) and (max-height: 740px) {
  .spm__desc { margin-bottom: 12px; }
  .spm__gtitle { margin-bottom: 6px; padding-bottom: 4px; }
  .spm__links a { padding: 2px 0; line-height: 1.2; }
  .spm__go { margin-top: 12px; }
}
@media (min-width: 1141px) and (max-height: 665px), (min-width: 1141px) and (max-width: 1190px) and (max-height: 700px) {
  .spm__desc { display: none; }
}

@media (max-width: 1140px) {
  /* The list scrolls here: the bar turns solid once the tiles have landed, so links never run under the logo. */
  body.is-menu-open .sp-topbar,
  body.is-menu-open .sp-topbar.scrolled { background: var(--sp-ink); transition: background .2s linear .5s; }
  .spm__body { padding: 92px clamp(16px, 5vw, 40px) 20px; display: flex; flex-direction: column; gap: 24px; }
  body.admin-bar .spm__body { padding-top: 124px; }
  .spm__grid { display: block; flex: 1 0 auto; }
  .spm__thread, .spm__stage { display: none; }
  .spm__list { height: auto; display: block; }
  .spm__item { border-bottom: 1px solid var(--sp-line); }
  .spm__row { align-items: center; gap: 12px; padding: 7px 0; }
  .spm__link { flex: 1; font-size: clamp(27px, 7.4vw, 40px); line-height: 1.25; white-space: normal; }
  .spm__item:not(.is-active) .spm__link { opacity: 1; }
  .spm__item.is-active .spm__link { transform: none; }
  .spm__item.is-active .spm__num { color: var(--sp-paper-mute); }
  .spm__item.is-expanded .spm__num, .spm__item.is-expanded .spm__link { color: var(--sp-coral); }
  body button.spm__toggle,
  body button.spm__toggle:hover,
  body button.spm__toggle:focus {
    position: relative; display: block; flex: none;
    width: 44px; height: 44px;
    padding: 0;
    border: 1px solid var(--sp-line-strong);
    border-radius: 0;
    background: transparent;
    color: var(--sp-paper);
    cursor: pointer;
  }
  .spm__toggle span {
    position: absolute; inset-inline: 13px; top: 50%; height: 2px; margin-top: -1px;
    background: var(--sp-paper);
    transition: transform var(--dur-sm) var(--ease-cinema);
  }
  .spm__toggle span:last-child { transform: rotate(90deg); }
  .spm__item.is-expanded .spm__toggle span:first-child { transform: rotate(180deg); }
  .spm__item.is-expanded .spm__toggle span:last-child { transform: rotate(180deg); }
  .spm__toggle:focus-visible { outline: 2px solid var(--sp-coral); outline-offset: 2px; }

  .spm__sub {
    position: static; width: auto;
    display: grid; grid-template-rows: 0fr;
    visibility: hidden;
    transition: grid-template-rows .42s var(--ease-cinema), visibility 0s linear .42s;
  }
  .spm__item.is-active .spm__sub { visibility: hidden; pointer-events: none; }
  .spm__item.is-expanded .spm__sub,
  .spm__item.is-expanded.is-active .spm__sub {
    grid-template-rows: 1fr;
    visibility: inherit;
    pointer-events: auto;
    transition: grid-template-rows .42s var(--ease-cinema), visibility 0s;
  }
  .spm__sub-in { min-height: 0; overflow: hidden; padding-inline-start: 38px; }
  .spm__sub-in > *, .spm__links li, .spm__gtitle { opacity: 1; transform: none; }
  .spm__item.is-expanded .spm__sub-in { padding-bottom: 18px; }
  .spm__desc { margin: 2px 0 12px; font-size: 18px; }
  .spm__cols { flex-wrap: wrap; gap: 16px 24px; }
  .spm__group { flex: 1 1 140px; }
  .spm__links a { padding: 7px 0; font-size: 18px; }
  .spm__go { margin-top: 10px; }

  .spm__foot { flex-wrap: wrap; gap: 14px 32px; }
  .spm__cta { margin-inline-start: 0; width: 100%; justify-content: center; }
}

@media (max-width: 560px) {
  .sp-topbar .sp-btn--desktop { display: none; }
  .sp-burger__scene { width: 44px; height: 44px; }
}
@media (max-width: 900px) { .sp-topbar .right .meta { display: none; } }

/* ---------- Reduced motion: a plain fade, no flips, no flying letters ---------- */
@media (prefers-reduced-motion: reduce) {
  .spm__tiles { display: none; }
  .spm.is-open { background: var(--sp-ink); }
  .spm .sp-asm-l, .spm.is-open .sp-asm-l { transform: none; transition: opacity .15s linear; }
  .spm__cube, .sp-burger__cube, .spm__thread path, .spm__sub { transition: none; }
  .spm.is-open .spm__scene { animation: none; }
  .spm.is-open .spm__tiles i::after { animation: none; }
  .spm__sub-in > *, .spm__links li, .spm__gtitle { transform: none; }
}