/* Sections — light/dark rhythm from reconstruction brief */

/* 00 Hero */
.sk-hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  align-items: end;
  color: var(--sk-text-light);
  overflow: hidden;
}

.sk-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.sk-hero__slides {
  position: absolute;
  inset: 0;
}

.sk-hero__slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0;
  transition: opacity 1.1s ease;
  pointer-events: none;
}

.sk-hero__slide.is-active {
  opacity: 1;
  z-index: 1;
}

@media (prefers-reduced-motion: reduce) {
  .sk-hero__slide {
    transition: none;
  }
}

.sk-hero__media img,
.sk-hero__media video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.sk-hero__shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(17, 19, 21, 0.35) 0%,
    rgba(17, 19, 21, 0.55) 45%,
    rgba(17, 19, 21, 0.82) 100%
  );
  z-index: 1;
}

.sk-hero__content {
  position: relative;
  z-index: 2;
  width: min(100% - (var(--page-gutter) * 2), var(--container-max));
  margin: 0 auto;
  padding-block: calc(var(--header-height) + 4rem) 4.5rem;
}

.sk-hero .sk-display {
  max-width: 12ch;
  color: var(--sk-white);
}

.sk-hero .sk-lead {
  margin-top: 1.25rem;
  color: rgba(247, 244, 238, 0.88);
  max-width: 36rem;
}

.sk-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.sk-hero__meta {
  margin-top: 2.5rem;
  font-size: var(--fs-label);
  color: rgba(247, 244, 238, 0.7);
}

/* Vision — slate */
.sk-vision {
  background: var(--sk-slate);
  color: var(--sk-text-light);
  padding-block: var(--section-space-large);
}

.sk-vision__quote {
  margin: 0;
  font-size: clamp(1.6rem, 1.2rem + 1.8vw, 2.6rem);
  line-height: 1.35;
  font-weight: 600;
  max-width: 22ch;
}

.sk-vision .sk-lead {
  margin-top: 1.5rem;
  color: var(--sk-muted-light);
}

/* 360 — sand */
.sk-c360 {
  background: var(--sk-measured-sand);
  color: var(--sk-text-dark);
  border-radius: 100% 100% 0 0 / 43px 43px 0 0;
  margin-top: -1.5rem;
}

.sk-c360__board {
  display: grid;
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.sk-c360__stages {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.sk-c360__stage {
  text-align: start;
  background: var(--sk-white);
  border: 1px solid rgba(23, 25, 27, 0.08);
  border-radius: 0.75rem;
  padding: 1rem 1.1rem;
  color: inherit;
}

.sk-c360__stage.is-active {
  border-color: var(--sk-copper);
  box-shadow: 0 0 0 1px var(--sk-copper);
}

.sk-c360__stage .num {
  display: block;
  font-size: var(--fs-nav);
  color: var(--sk-copper);
  margin-bottom: 0.35rem;
}

.sk-c360__focus {
  background: var(--sk-slate);
  color: var(--sk-text-light);
  border-radius: 1rem;
  padding: 1.5rem;
  min-height: 10rem;
}

@media (min-width: 900px) {
  .sk-c360__board {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: start;
  }

  .sk-c360__stages {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* About — ivory */
.sk-about {
  background: var(--sk-ivory);
  color: var(--sk-text-dark);
}

.sk-about__grid {
  display: grid;
  gap: 2rem;
  align-items: start;
}

.sk-about__media {
  min-height: 18rem;
  border-radius: 0.75rem 0.75rem 2rem 0.75rem;
  background-size: cover;
  background-position: center;
}

@media (min-width: 960px) {
  .sk-about__grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 3rem;
  }
}

.sk-about__body p {
  max-width: 38rem;
  color: var(--sk-muted-dark);
}

/* Capabilities — measured sand shell + flip grid */
.sk-cap {
  background: var(--sk-measured-sand);
  color: var(--sk-text-dark);
  border-radius: 100% 100% 0 0 / 43px 43px 0 0;
  padding-block: 117px 108px;
}

.sk-cap .sk-container > [data-reveal] {
  /* Avoid transform on ancestors of 3D flip (breaks perspective / sizing) */
  transform: none;
}

.sk-flip-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 20px;
  margin-top: 2.5rem;
  width: 100%;
  /* Reveal: opacity only — never transform the 3D card grid */
  opacity: 1;
  transform: none;
}

.sk-flip {
  position: relative;
  display: block;
  appearance: none;
  -webkit-appearance: none;
  border: 0;
  margin: 0;
  padding: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: inherit;
  cursor: pointer;
  width: 100%;
  min-height: 244px;
  height: 244px;
  perspective: 1300px;
  -webkit-perspective: 1300px;
}

.sk-flip:focus-visible {
  outline: 2px solid var(--sk-copper);
  outline-offset: 4px;
}

.sk-flip__inner {
  position: relative;
  display: block;
  width: 100%;
  height: 244px;
  min-height: 244px;
  transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
  transition: transform 800ms cubic-bezier(0.65, 0, 0.2, 1);
}

.sk-flip.is-flipped .sk-flip__inner,
.sk-flip:hover .sk-flip__inner,
.sk-flip:focus-visible .sk-flip__inner {
  transform: rotateY(180deg);
}

.sk-flip__face {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  box-sizing: border-box;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: 3px 3px 3px 22px;
  padding: 30px 26px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

[dir="rtl"] .sk-flip__face {
  border-radius: 3px 3px 22px 3px;
}

.sk-flip__face--front {
  background: var(--sk-measured-slate);
  color: #f7f4ee;
}

.sk-flip__face--back {
  background: var(--sk-copper);
  color: #fff;
  transform: rotateY(180deg);
  justify-content: center;
  gap: 0.65rem;
}

.sk-flip__bar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--sk-copper);
}

.sk-flip__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  width: 100%;
}

.sk-flip__num {
  font-size: 13px;
  line-height: 1;
  opacity: 0.75;
  color: inherit;
}

.sk-flip__body {
  display: block;
  width: 100%;
  margin-top: auto;
}

.sk-flip__title {
  display: block;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.3;
  color: inherit;
}

.sk-flip__face--back .sk-flip__title {
  font-size: 18px;
}

.sk-flip__hint {
  display: block;
  margin-top: 0.5rem;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sk-copper);
}

.sk-flip__desc {
  display: block;
  font-size: 14px;
  line-height: 1.5;
  color: inherit;
}

@media (hover: none) {
  .sk-flip:hover .sk-flip__inner {
    transform: none;
  }

  .sk-flip.is-flipped .sk-flip__inner {
    transform: rotateY(180deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .sk-flip__inner {
    transition: none;
  }
}

@media (max-width: 899px) {
  .sk-cap {
    padding-block: 110px 101px;
    border-radius: 100% 100% 0 0 / 22px 22px 0 0;
  }

  .sk-flip-grid {
    gap: 14px;
    grid-template-columns: 1fr;
  }

  .sk-flip,
  .sk-flip__inner {
    height: 244px;
    min-height: 244px;
  }
}

/* Process — sand sticky coverflow */
.sk-process {
  background: var(--sk-sand-light);
  color: var(--sk-text-dark);
}

.sk-process__track {
  position: relative;
  /* ~reference journey span (~2904px) with equal stage scrubbing room */
  height: max(2904px, calc((100vh - var(--header-height)) + 6 * 48vh));
}

.sk-process__sticky {
  position: sticky;
  top: var(--header-height);
  min-height: calc(100vh - var(--header-height));
  display: grid;
  align-content: center;
  padding-block: 2rem;
  perspective: 1400px;
  overflow: hidden;
}

.sk-process__stage-wrap {
  position: relative;
  min-height: 18rem;
  max-width: 36rem;
  margin-inline: auto;
  width: min(100% - 2rem, 36rem);
  transform-style: preserve-3d;
}

.sk-process__stage {
  position: absolute;
  inset-inline: 0;
  top: 0;
  background: var(--sk-white);
  border-radius: 1rem;
  padding: 2rem 1.75rem;
  box-shadow: 0 18px 40px rgba(17, 19, 21, 0.08);
  opacity: 0;
  transform: translate3d(0, 28px, -120px) scale(0.9);
  transition:
    opacity 0.55s var(--ease-reveal),
    transform 0.65s var(--ease-reveal),
    box-shadow 0.45s var(--ease-reveal);
  pointer-events: none;
  z-index: 0;
  will-change: transform, opacity;
}

.sk-process__stage.is-prev {
  opacity: 0.38;
  transform: translate3d(-14%, 0, -90px) rotateY(16deg) scale(0.9);
  z-index: 1;
}

.sk-process__stage.is-next {
  opacity: 0.38;
  transform: translate3d(14%, 0, -90px) rotateY(-16deg) scale(0.9);
  z-index: 1;
}

[dir="rtl"] .sk-process__stage.is-prev {
  transform: translate3d(14%, 0, -90px) rotateY(-16deg) scale(0.9);
}

[dir="rtl"] .sk-process__stage.is-next {
  transform: translate3d(-14%, 0, -90px) rotateY(16deg) scale(0.9);
}

.sk-process__stage.is-active {
  opacity: 1;
  transform: translate3d(0, 0, 0) rotateY(0deg) scale(1);
  pointer-events: auto;
  z-index: 3;
  box-shadow: 0 22px 48px rgba(17, 19, 21, 0.12);
}

.sk-process__dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
  position: relative;
  z-index: 4;
}

.sk-process__dots button {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  border: 1px solid rgba(23, 25, 27, 0.2);
  background: transparent;
  cursor: pointer;
  transition:
    background 0.3s var(--ease-reveal),
    border-color 0.3s var(--ease-reveal),
    color 0.3s var(--ease-reveal),
    transform 0.3s var(--ease-reveal);
}

.sk-process__dots button:hover,
.sk-process__dots button:focus-visible {
  border-color: var(--sk-copper);
  color: var(--sk-copper);
  outline: none;
}

.sk-process__dots button.is-active {
  background: var(--sk-copper);
  border-color: var(--sk-copper);
  color: white;
  transform: scale(1.06);
}

@media (max-width: 899px) {
  .sk-process__track {
    height: auto;
  }

  .sk-process__sticky {
    position: static;
    min-height: 0;
    perspective: none;
    overflow: visible;
  }

  .sk-process__stage-wrap {
    display: grid;
    gap: 1rem;
    min-height: 0;
    width: min(100% - 2rem, 36rem);
  }

  .sk-process__stage,
  .sk-process__stage.is-prev,
  .sk-process__stage.is-next,
  .sk-process__stage.is-active,
  [dir="rtl"] .sk-process__stage.is-prev,
  [dir="rtl"] .sk-process__stage.is-next {
    position: relative;
    inset: auto;
    opacity: 1;
    transform: none;
    pointer-events: auto;
    z-index: auto;
    box-shadow: 0 18px 40px rgba(17, 19, 21, 0.08);
    will-change: auto;
  }

  .sk-process__stage.is-active {
    outline: 1px solid rgba(190, 81, 7, 0.45);
  }
}

@media (prefers-reduced-motion: reduce) {
  .sk-process__stage,
  .sk-process__dots button {
    transition-duration: 0.01ms !important;
  }

  .sk-process__stage.is-prev,
  .sk-process__stage.is-next,
  [dir="rtl"] .sk-process__stage.is-prev,
  [dir="rtl"] .sk-process__stage.is-next {
    opacity: 0;
    transform: none;
  }

  .sk-process__stage.is-active {
    transform: none;
  }
}

/* Portfolio — deep cinematic frames */
.sk-portfolio {
  background: var(--sk-deep);
  color: var(--sk-text-light);
  padding-block: 0 0;
}

.sk-portfolio__intro {
  padding: var(--section-space) var(--page-gutter) 2rem;
}

.sk-portfolio__intro .sk-h2,
.sk-portfolio__intro .sk-lead {
  color: var(--sk-text-light);
}

.sk-portfolio__intro .sk-lead {
  color: var(--sk-muted-light);
}

.sk-frame {
  position: relative;
  min-height: 78vh;
  display: grid;
  align-items: end;
  overflow: hidden;
}

.sk-frame__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.04);
}

.sk-frame__shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 35%, rgba(17, 19, 21, 0.85) 100%);
}

.sk-frame__copy {
  position: relative;
  z-index: 1;
  width: min(100% - (var(--page-gutter) * 2), var(--container-max));
  margin: 0 auto 3rem;
}

.sk-frame__copy .num {
  font-size: clamp(2.5rem, 2rem + 2vw, 4rem);
  color: var(--sk-copper);
  font-weight: 300;
}

.sk-frame__copy h3 {
  margin: 0.35rem 0;
  font-size: clamp(1.4rem, 1.1rem + 1vw, 2rem);
}

.sk-frame__copy p {
  margin: 0;
  color: var(--sk-muted-light);
  max-width: 36rem;
}

/* Sectors — ivory editorial list */
.sk-sectors {
  background: var(--sk-ivory);
}

.sk-sectors__list {
  display: grid;
  gap: clamp(14px, 1.4vw, 22px);
  margin-top: 2rem;
}

.sk-sectors__list article {
  display: grid;
  grid-template-columns: 3.5rem 1fr;
  gap: 1rem;
  padding-block: 1.25rem;
  border-bottom: 1px solid rgba(23, 25, 27, 0.12);
}

.sk-sectors__list .idx {
  color: var(--sk-copper);
  font-weight: 600;
}

/* Standards — deep */
.sk-standards {
  background: var(--sk-black);
  color: var(--sk-text-light);
}

.sk-standards .sk-lead {
  color: var(--sk-muted-light);
}

.sk-standards__list {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.sk-standards__list article {
  display: grid;
  grid-template-columns: minmax(5rem, 8rem) 1fr;
  gap: 1rem;
  padding: 1.1rem 0;
  border-top: 1px solid rgba(252, 250, 247, 0.12);
}

.sk-standards__list .idx {
  color: var(--sk-copper);
  font-weight: 600;
}

/* Difference — warm light */
.sk-diff {
  background: var(--sk-sand);
  color: var(--sk-text-dark);
}

.sk-diff__list {
  display: grid;
  gap: 0.75rem;
  margin-top: 2rem;
}

.sk-diff__list button {
  width: 100%;
  text-align: start;
  background: rgba(252, 250, 247, 0.55);
  border: 1px solid rgba(23, 25, 27, 0.08);
  border-radius: 0.75rem;
  padding: 1rem 1.15rem;
  display: grid;
  grid-template-columns: 3rem 1fr auto;
  gap: 0.75rem;
  align-items: start;
  cursor: pointer;
  color: inherit;
  font: inherit;
  transition:
    border-color 0.3s var(--ease-reveal),
    background 0.3s var(--ease-reveal),
    box-shadow 0.3s var(--ease-reveal);
}

.sk-diff__list button:hover {
  border-color: rgba(190, 81, 7, 0.4);
  background: rgba(252, 250, 247, 0.88);
}

.sk-diff__list button:focus-visible {
  outline: 2px solid var(--sk-copper);
  outline-offset: 2px;
  border-color: rgba(190, 81, 7, 0.55);
}

.sk-diff__list button[aria-expanded="true"] {
  border-color: rgba(190, 81, 7, 0.38);
  background: rgba(252, 250, 247, 0.92);
  box-shadow: 0 10px 28px rgba(17, 19, 21, 0.06);
}

.sk-diff__chev {
  position: relative;
  width: 1.35rem;
  height: 1.35rem;
  margin-block: 0.15rem 0;
  flex-shrink: 0;
  color: var(--sk-copper);
  transition: transform 0.4s var(--ease-reveal);
}

.sk-diff__chev::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 42%;
  width: 0.48rem;
  height: 0.48rem;
  /* Physical edges so the glyph reads as ↓/↑ in both RTL and LTR */
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translate(-50%, -50%) rotate(45deg);
}

.sk-diff__list button[aria-expanded="true"] .sk-diff__chev {
  transform: rotate(180deg);
}

.sk-diff__list .diff-panel {
  display: none;
  margin-top: 0.5rem;
  color: var(--sk-muted-dark);
}

.sk-diff__list button[aria-expanded="true"] .diff-panel {
  display: block;
}

@media (prefers-reduced-motion: reduce) {
  .sk-diff__list button,
  .sk-diff__chev {
    transition-duration: 0.01ms !important;
  }
}

/* Contact — deep climax */
.sk-contact {
  background: var(--sk-deep);
  color: var(--sk-text-light);
  background-image: linear-gradient(180deg, rgba(17, 19, 21, 0.72), rgba(17, 19, 21, 0.9)),
    var(--sk-contact-bg, url("../media/img-19.jpg"));
  background-size: cover;
  background-position: center;
}

.sk-contact__map {
  margin-top: 1.25rem;
  overflow: hidden;
  border: 1px solid rgba(247, 244, 238, 0.14);
  aspect-ratio: 16 / 10;
  max-width: 28rem;
}

.sk-contact__map iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.sk-contact .sk-lead {
  color: var(--sk-muted-light);
}

.sk-contact__grid {
  display: grid;
  gap: 2rem;
  margin-top: 2rem;
}

.sk-contact__meta {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
  color: var(--sk-muted-light);
}

.sk-contact__meta a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.sk-contact__social {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.sk-contact__social:hover,
.sk-contact__social:focus-visible {
  color: var(--sk-copper);
  outline: none;
}

.sk-contact__social .sk-ico {
  flex-shrink: 0;
  display: block;
}

.sk-wa-fab {
  position: fixed;
  bottom: max(1.1rem, env(safe-area-inset-bottom, 0px) + 0.85rem);
  /* inline-start: away from contact form column in both LTR (left) and RTL (right) */
  inset-inline-start: max(1.1rem, env(safe-area-inset-inline-start, 0px) + 0.85rem);
  z-index: 90;
  width: 3.15rem;
  height: 3.15rem;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: #1f6b45;
  color: #fcfaf7;
  box-shadow: 0 12px 28px rgba(17, 19, 21, 0.32);
  text-decoration: none;
  opacity: 0;
  transform: translateY(0.75rem);
  animation: sk-wa-fab-in 0.65s var(--ease-reveal) 0.9s forwards;
}

.sk-wa-fab:hover,
.sk-wa-fab:focus-visible {
  background: #245c3f;
  color: #fcfaf7;
  outline: 2px solid rgba(190, 81, 7, 0.55);
  outline-offset: 3px;
}

.sk-wa-fab .sk-ico {
  width: 1.45rem;
  height: 1.45rem;
}

@keyframes sk-wa-fab-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 599px) {
  .sk-wa-fab {
    width: 2.85rem;
    height: 2.85rem;
    bottom: max(0.85rem, env(safe-area-inset-bottom, 0px) + 0.55rem);
    inset-inline-start: max(0.85rem, env(safe-area-inset-inline-start, 0px) + 0.55rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .sk-wa-fab {
    animation: none;
    opacity: 1;
    transform: none;
  }
}

.sk-form {
  display: grid;
  gap: 0.9rem;
  background: rgba(17, 19, 21, 0.55);
  border: 1px solid rgba(252, 250, 247, 0.12);
  border-radius: 1rem;
  padding: 1.35rem;
}

.sk-form label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.92rem;
}

.sk-form input,
.sk-form textarea {
  width: 100%;
  border: 1px solid rgba(252, 250, 247, 0.2);
  background: rgba(17, 19, 21, 0.65);
  color: var(--sk-text-light);
  border-radius: 0.55rem;
  padding: 0.7rem 0.85rem;
}

.sk-form textarea {
  min-height: 7rem;
  resize: vertical;
}

@media (min-width: 960px) {
  .sk-contact__grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

.sk-footer {
  background: var(--sk-black);
  color: var(--sk-muted-light);
  padding: 1.5rem var(--page-gutter) 2rem;
  font-size: 0.9rem;
}

.sk-footer__inner {
  width: min(100%, var(--container-max));
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.85s var(--ease-reveal), transform 0.95s var(--ease-reveal);
}

[data-reveal].is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}