/* 1K · The three faces, shared by Apply, sign-in (from 1K) and the Signal's 1K tuning.
   .k-cube: a seat as a cube that turns through its faces — Creativity (paper, words), Creator (black), Creation (colour).
   .k-route: the way to a seat, one stop per step; done stops are filled, the current one is white.
   .k-iso: a small isometric cube with one face filled (left = Creativity, top = Creator, right = Creation). No green; no red. */
.k-cube { --s: clamp(200px, 26vw, 380px); width: var(--s); height: var(--s); perspective: calc(var(--s) * 4.2); }
.k-cube-in { position: relative; width: 100%; height: 100%; transform-style: preserve-3d; transform: rotateX(-26deg) rotateY(-38deg); animation: k-turn 14s cubic-bezier(.7, 0, .2, 1) infinite; }
.k-cube-in > i { position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: space-between; padding: calc(var(--s) * .08); font-style: normal; backface-visibility: hidden; box-shadow: inset 0 0 0 calc(var(--s) * .022) #a9a9a9, inset 0 0 0 calc(var(--s) * .03) #2a2a2a; }
.k-cube-in > i b { font-weight: 800; font-size: calc(var(--s) * .15); line-height: .92; letter-spacing: -.045em; }
.k-cube-in > i small { font: 500 calc(var(--s) * .036)/1.3 var(--mono, ui-monospace, monospace); letter-spacing: .12em; text-transform: uppercase; }
.k-cube-in > i span { font: 500 calc(var(--s) * .034)/1 var(--mono, ui-monospace, monospace); letter-spacing: .14em; text-transform: uppercase; opacity: .7; }
.k-cube-in .f1 { background: #f2f0eb; color: #0b0b0b; transform: translateZ(calc(var(--s) / 2)); }
.k-cube-in .f2 { background: #0b0b0b; color: #f4f2ed; transform: rotateX(90deg) translateZ(calc(var(--s) / 2)); }
.k-cube-in .f3 { background: #031bbe; color: #f2f1ef; transform: rotateY(90deg) translateZ(calc(var(--s) / 2)); }
.k-cube-in .f4 { background: #141414; transform: rotateY(180deg) translateZ(calc(var(--s) / 2)); }
.k-cube-in .f5 { background: #141414; transform: rotateX(-90deg) translateZ(calc(var(--s) / 2)); }
.k-cube-in .f6 { background: #141414; transform: rotateY(-90deg) translateZ(calc(var(--s) / 2)); }
@keyframes k-turn {
  0%, 20% { transform: rotateX(-26deg) rotateY(-38deg); }
  28%, 38% { transform: rotateX(0deg) rotateY(0deg); }
  46%, 56% { transform: rotateX(-90deg) rotateY(0deg); }
  64%, 74% { transform: rotateX(0deg) rotateY(-90deg); }
  84%, 100% { transform: rotateX(-26deg) rotateY(-38deg); }
}
@media (prefers-reduced-motion: reduce) { .k-cube-in { animation: none; } }

.k-iso { width: 1em; height: 1em; flex: none; overflow: visible; }
.k-iso path { fill: none; stroke: currentColor; stroke-width: 2; stroke-linejoin: round; }
.k-iso path.on { fill: currentColor; }

.k-route { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(var(--n, 5), minmax(0, 1fr)); counter-reset: route; }
.k-route li { counter-increment: route; position: relative; display: grid; gap: 10px; align-content: start; padding: 18px 16px 0 0; border-top: 2px solid rgba(255, 255, 255, .2); color: #9a9a9a; }
.k-route li::before { content: ""; position: absolute; left: 0; top: -7px; width: 12px; height: 12px; background: #070707; box-shadow: inset 0 0 0 2px rgba(255, 255, 255, .4); }
.k-route li.done { border-top-color: #f4f2ed; color: #f4f2ed; }
.k-route li.done::before { background: #f4f2ed; box-shadow: none; }
.k-route li[aria-current] { color: #fff; }
.k-route li[aria-current]::before { background: #fff; box-shadow: 0 0 0 4px rgba(255, 255, 255, .22); }
.k-route b { display: flex; align-items: center; gap: 10px; font-size: clamp(17px, 1.5vw, 22px); font-weight: 700; letter-spacing: -.02em; color: inherit; }
.k-route b .k-iso { font-size: 22px; }
.k-route small { font: 500 11px/1.45 var(--mono, ui-monospace, monospace); letter-spacing: .12em; text-transform: uppercase; color: #9a9a9a; }
@media (max-width: 720px) {
  .k-route { grid-template-columns: minmax(0, 1fr); }
  .k-route li { grid-template-columns: auto 1fr; padding: 14px 0 14px 22px; border-top: 0; border-left: 2px solid rgba(255, 255, 255, .2); }
  .k-route li.done { border-left-color: #f4f2ed; }
  .k-route li::before { left: -7px; top: 18px; }
  .k-route small { grid-column: 1 / -1; }
}

/* ── /1k/apply: the cube beside the headline, then the way to a seat. ── */
.ap { padding-top: var(--head); }
.ap-hero { min-height: calc(100svh - var(--head) - 120px); display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: clamp(32px, 6vw, 96px); padding-block: clamp(48px, 8vw, 96px); }
.ap-kick { color: var(--k-grey-2); margin: 0 0 22px; }
.ap-h { margin: 0; font-size: clamp(52px, 8.4vw, 132px); line-height: .88; letter-spacing: -.05em; font-weight: 800; }
.ap-p { margin: 26px 0 0; max-width: 30rem; font-size: 18px; line-height: 1.45; color: var(--k-grey-2); }
.ap-go { display: flex; flex-wrap: wrap; gap: 10px; margin: 34px 0 0; }
.ap-btn { display: inline-flex; align-items: center; height: 48px; padding: 0 22px; background: var(--k-white); color: var(--k-ink); font-weight: 600; font-size: 15px; }
.ap-btn--line { background: transparent; color: var(--k-white); box-shadow: inset 0 0 0 1px var(--k-line-d); }
.ap-btn:hover { opacity: .88; }
.ap-cube { --s: clamp(220px, 25vw, 380px); margin-right: calc(var(--s) * .26); }
.ap-way { padding-bottom: clamp(80px, 10vw, 140px); }
.ap-way-h { margin: 0 0 34px; color: var(--k-grey-2); font-weight: 500; }
.ap-way .k-route li { color: var(--k-white); }
.ap-way .k-route small a { color: var(--k-white); text-decoration: underline; text-underline-offset: 3px; }
@media (max-width: 860px) {
  .ap-hero { grid-template-columns: minmax(0, 1fr); min-height: 0; padding-top: 32px; }
  .ap-cube { --s: min(62vw, 300px); order: -1; justify-self: center; margin: 24px 0 8px; }
  .ap-p { font-size: 16px; }
}

/* ── /1k/apply: what a seat gets you, four plain lines between the hero and the way. ── */
.ap-get { padding-bottom: clamp(56px, 7vw, 96px); }
.ap-get-l { margin: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 24px; }
.ap-get-l > div { padding: 18px 0 0; border-top: 2px solid #f4f2ed; }
.ap-get-l dt { font-size: clamp(22px, 2vw, 30px); font-weight: 800; letter-spacing: -.03em; line-height: 1; color: var(--k-white); }
.ap-get-l dd { margin: 12px 0 0; font-size: 16px; line-height: 1.45; color: var(--k-grey-2); }
@media (max-width: 860px) { .ap-get-l { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 28px 20px; } }
@media (max-width: 520px) { .ap-get-l { grid-template-columns: minmax(0, 1fr); gap: 22px; } }
