/* "What stays constant": a pinned stage. The section locks in place while you scroll; each principle takes over the screen as one giant word. */
.kpin { position: relative; background: radial-gradient(60% 55% at 80% 25%, rgba(144,15,255,.22), rgba(144,15,255,0) 70%), radial-gradient(45% 45% at 5% 100%, rgba(144,15,255,.12), rgba(144,15,255,0) 70%), var(--black); color: #fff; }
.kpin__track { height: 360vh; }
.kpin__stage { position: sticky; top: 0; height: 100vh; min-height: 560px; display: flex; align-items: stretch; overflow: hidden; }
.kpin__wrap { display: flex; flex-direction: column; justify-content: space-between; width: 100%; padding-top: calc(var(--bar-h, 72px) + clamp(1.4rem, 3vw, 2.4rem)); padding-bottom: clamp(1.4rem, 3vw, 2.4rem); }
.kpin__title { margin-top: 1.2rem; max-width: 30ch; font-size: clamp(1.2rem, 1rem + 1vw, 1.9rem); font-weight: 600; letter-spacing: -0.045em; line-height: 1.12; color: var(--on-dark-2); text-transform: none; }

.kpin__slides { position: relative; flex: 1; display: grid; align-items: center; }
.kpin__slide { grid-area: 1 / 1; position: relative; visibility: hidden; pointer-events: none; }
.kpin__slide.is-on { visibility: visible; pointer-events: auto; }
.kpin__n { display: block; font-family: var(--ff-mono); font-size: .85rem; font-weight: 600; color: var(--purple-light); margin-bottom: 1rem; opacity: 0; transform: translateY(14px); transition: opacity .5s, transform .7s var(--ease); }
.kpin__word { font-size: clamp(3.4rem, .8rem + 11.5vw, 12.5rem); font-weight: 700; letter-spacing: -0.07em; line-height: .9; text-transform: uppercase; color: var(--cream); word-spacing: .08em; }
.kp__w { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: .08em; margin-bottom: -.08em; margin-right: .16em; }
.kp__w > span { display: inline-block; transform: translateY(112%); transition: transform .7s cubic-bezier(.6,0,.9,.4); }
.kp__w:nth-child(2n) > span { color: transparent; -webkit-text-stroke: 2px var(--purple-light); }
.kpin__p { margin-top: clamp(1.2rem, 2.4vw, 2rem); max-width: 34ch; font-size: clamp(1.15rem, 1rem + .7vw, 1.6rem); font-weight: 500; letter-spacing: -0.03em; line-height: 1.35; color: var(--on-dark); opacity: 0; transform: translateY(20px); transition: opacity .4s, transform .6s var(--ease); }
/* entering */
.kpin__slide.is-on .kpin__n { opacity: 1; transform: none; transition: opacity .7s .2s, transform .9s var(--ease) .2s; }
.kpin__slide.is-on .kp__w > span { transform: none; transition: transform 1.1s var(--ease); transition-delay: calc(var(--i, 0) * 110ms + .15s); }
.kpin__slide.is-on .kpin__p { opacity: .92; transform: none; transition: opacity .8s .5s, transform 1s var(--ease) .5s; }
/* leaving: the words rise out the top */
.kpin__slide.is-out { visibility: visible; }
.kpin__slide.is-out .kp__w > span { transform: translateY(-112%); }

.kpin__bottom { display: flex; justify-content: space-between; align-items: flex-end; gap: 2rem; flex-wrap: wrap; }
.kpin__rail { display: flex; gap: .8rem; }
.kpin__rail li { display: grid; gap: .5rem; width: clamp(3.4rem, 7vw, 6rem); font-family: var(--ff-mono); font-size: .75rem; font-weight: 600; color: rgba(255,255,255,.35); transition: color .5s; }
.kpin__rail i { position: relative; display: block; height: 2px; background: rgba(255,255,255,.16); overflow: hidden; }
.kpin__rail i::after { content: ""; position: absolute; inset: 0; background: var(--purple-light); transform: scaleX(0); transform-origin: left; transition: transform .8s var(--ease); }
.kpin__rail li.is-on { color: #fff; }
.kpin__rail li.is-on i::after, .kpin__rail li.is-done i::after { transform: scaleX(1); }
.kpin__foot { max-width: 36ch; color: var(--on-dark-2); letter-spacing: -0.02em; line-height: 1.45; }
.kpin__foot a { color: var(--purple-light); }

/* small screens, no JS, or reduced motion: no pinning, show all four principles stacked */
@media (max-width: 800px) {
  .kpin__track { height: auto; } .kpin__stage { position: static; height: auto; min-height: 0; padding-bottom: 3rem; }
  .kpin__wrap { gap: 2.4rem; } .kpin__slides { display: grid; gap: 2.4rem; }
  .kpin__slide { grid-area: auto; visibility: visible; pointer-events: auto; }
  .kpin__n { opacity: 1; transform: none; } .kp__w > span { transform: none; } .kpin__p { opacity: .92; transform: none; }
  .kpin__word { font-size: clamp(2.6rem, 1rem + 9vw, 4.6rem); } .kpin__rail { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .kpin__track { height: auto; } .kpin__stage { position: static; height: auto; min-height: 0; padding-bottom: 4rem; }
  .kpin__wrap { gap: 2.4rem; } .kpin__slides { display: grid; gap: 2.4rem; }
  .kpin__slide { grid-area: auto; visibility: visible; pointer-events: auto; }
  .kpin__n { opacity: 1; transform: none; } .kp__w > span { transform: none; transition: none; } .kpin__p { opacity: .92; transform: none; transition: none; } .kpin__rail { display: none; }
}
html:not(.js) .kpin__track { height: auto; } html:not(.js) .kpin__stage { position: static; height: auto; padding-bottom: 3rem; } html:not(.js) .kpin__slides { display: grid; gap: 2.4rem; } html:not(.js) .kpin__slide { grid-area: auto; visibility: visible; } html:not(.js) .kp__w > span { transform: none; } html:not(.js) .kpin__n, html:not(.js) .kpin__p { opacity: 1; transform: none; }

/* light theme for this section (the rest of the site is dark, so this one breathes) */
.kpin { background: radial-gradient(55% 55% at 85% 20%, rgba(144,15,255,.1), rgba(144,15,255,0) 70%), #ececef; color: var(--ink-2); }
.kpin .label__name { color: var(--ink-2); }
.kpin .label__name .mark { background-image: url("../images/brand/novva-n-dark.svg"); }
.kpin .label__side { color: var(--ink-2); }
.kpin .label__side small { color: var(--ink-3); }
.kpin .label::after, .kpin .label { border-color: rgba(11,11,14,.14); }
.kpin__title { color: var(--ink-3); }
.kpin__n { color: var(--purple); }
.kpin__word { color: var(--ink-2); }
.kp__w { padding-right: .08em; margin-right: .1em; }
.kp__w:nth-child(2n) > span { -webkit-text-stroke: 2px var(--purple); }
.kpin__p { color: var(--ink-2); }
.kpin__rail li { color: rgba(11,11,14,.35); }
.kpin__rail li.is-on { color: var(--ink-2); }
.kpin__rail i { background: rgba(11,11,14,.14); }
.kpin__rail i::after { background: var(--purple); }
.kpin__foot { color: var(--ink-3); }
.kpin__foot a { color: var(--purple); }