/* Four Degree North — Service Pages
   Scroll-driven, parallax-depth, full-symmetry layout
   Uses same design tokens as styles.css
   ──────────────────────────────────────────────────── */

/* ── Service Hero ──────────────────────────────────── */
.service-hero {
  --scene-progress: 0;
  --hero-frame-opacity: 0.22;
  --hero-frame-scale: 1.03;
  position: relative;
  min-height: 100svh;
  display: grid;
  align-items: end;
  overflow: hidden;
  isolation: isolate;
  padding: calc(var(--header) + var(--shell)) var(--shell) clamp(var(--xxl), 5vw, var(--xxxl));
  background: var(--ink);
}

.service-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(circle at 22% 24%, rgba(236,31,51,0.16), transparent 22%),
    radial-gradient(circle at 72% 28%, rgba(255,250,240,0.08), transparent 28%),
    linear-gradient(180deg, rgba(20,18,15,0.18), rgba(20,18,15,0.84));
  pointer-events: none;
}

.service-page--visualise .service-hero::before {
  background:
    radial-gradient(circle at 78% 20%, rgba(236,31,51,0.16), transparent 22%),
    radial-gradient(circle at 30% 42%, rgba(255,250,240,0.09), transparent 30%),
    linear-gradient(180deg, rgba(20,18,15,0.14), rgba(20,18,15,0.84));
}

.service-page--design .service-hero::before {
  background:
    radial-gradient(circle at 52% 18%, rgba(236,31,51,0.14), transparent 18%),
    radial-gradient(circle at 18% 58%, rgba(255,250,240,0.08), transparent 26%),
    linear-gradient(180deg, rgba(20,18,15,0.16), rgba(20,18,15,0.84));
}

.service-hero::after {
  content: "";
  position: absolute;
  inset: 8%;
  z-index: 1;
  border: 1px solid rgba(255,250,240,0.14);
  opacity: var(--hero-frame-opacity);
  transform: scale(var(--hero-frame-scale));
  pointer-events: none;
}

.service-hero__backdrop {
  --parallax-y: 0px;
  position: absolute;
  inset: -16%;
  z-index: 0;
  background-size: cover;
  background-position: center calc(50% + var(--parallax-y));
  background-repeat: no-repeat;
  filter: saturate(0.82) contrast(1.02);
  transform: scale(1.04);
}

.service-hero__content {
  width: min(var(--content-max), calc(100% - (var(--shell) * 2)));
  max-width: 1260px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.service-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 1.1rem;
  color: var(--red);
  font-size: var(--fs-label);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.service-hero__kicker::before {
  content: "";
  width: 28px;
  height: 1px;
  background: currentColor;
}

.service-hero__title {
  margin: 0;
  color: rgba(255, 250, 240, 0.94);
  font-family: var(--serif);
  font-size: var(--fs-display);
  font-weight: 300;
  line-height: 0.96;
  letter-spacing: -0.03em;
  white-space: nowrap;
  text-shadow: 0 14px 42px rgba(0, 0, 0, 0.32);
}

.service-hero__lead {
  max-width: 34ch;
  margin: 1.35rem 0 0;
  color: rgba(255, 250, 240, 0.76);
  font-size: var(--fs-body);
  line-height: 1.8;
}

.service-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.service-hero__meta span {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 0.9rem;
  border: 1px solid rgba(255, 250, 240, 0.18);
  background: rgba(20, 18, 15, 0.24);
  color: rgba(255, 250, 240, 0.72);
  font-size: 0.64rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  backdrop-filter: blur(14px);
}

/* ── Service Section Container ─────────────────────── */
.svc-section {
  padding: var(--section-block) var(--shell);
  border-top: 1px solid var(--line);
}

.svc-section__inner {
  max-width: var(--content-max);
  margin: 0 auto;
}

/* ── Split Layout (Approach, Process head) ─────────── */
.svc-split {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--xxl);
}

.svc-split__title {
  margin: 0;
  font-family: var(--serif);
  font-size: var(--fs-title);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.svc-split__right p {
  margin: 0;
  color: var(--ink-soft);
  font-size: var(--fs-body);
  line-height: 1.8;
}

.svc-split__right p + p {
  margin-top: 1rem;
}

/* ── Specs Table ───────────────────────────────────── */
.svc-specs {
  margin-top: var(--xxl);
  border-top: 1px solid var(--line);
}

.svc-specs__row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--line);
}

.svc-specs__row strong {
  color: var(--red);
  font-size: var(--fs-label);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.svc-specs__row span {
  color: var(--ink-soft);
  font-size: 0.92rem;
  line-height: 1.72;
}

/* ── Gallery Section ───────────────────────────────── */
.svc-gallery {
  background: var(--paper-deep);
}

.svc-gallery__head {
  max-width: 860px;
  margin-bottom: var(--xxl);
}

.svc-gallery__head h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: var(--fs-title);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.svc-gallery__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--lg);
}

.svc-gallery__card {
  margin: 0;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  background: var(--paper-warm);
  overflow: hidden;
  transition: transform 0.5s var(--ease-out), border-color 0.5s var(--ease-out), box-shadow 0.5s var(--ease-out);
}

.svc-gallery__card:hover {
  transform: translateY(-6px);
  border-color: var(--red);
  box-shadow: 0 20px 48px rgba(20, 18, 15, 0.08);
}

.svc-gallery__media {
  --mask-top: 16%;
  --mask-side: 6%;
  --image-scale: 1.06;
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.svc-gallery__image {
  --parallax-y: 0px;
  position: absolute;
  inset: -12%;
  background-size: cover;
  background-position: center calc(50% + var(--parallax-y));
  filter: saturate(0.92) contrast(1.02);
  clip-path: inset(var(--mask-top) var(--mask-side) 0 var(--mask-side));
  transform: scale(var(--image-scale));
  transform-origin: center;
  transition: clip-path 0.2s linear, transform 0.7s var(--ease-out);
}

.svc-gallery__card:hover .svc-gallery__image {
  transform: scale(1.08);
}

.svc-gallery__card figcaption {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: var(--lg) var(--xl) var(--xl);
  color: var(--ink-soft);
  font-size: var(--fs-body);
  line-height: 1.6;
}

.svc-gallery__card figcaption span {
  font-size: var(--fs-micro);
  font-weight: 500;
  color: var(--red);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ── Duo Section (Image + Cards) ───────────────────── */
.svc-duo__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--lg);
  align-items: stretch;
}

.svc-duo__media {
  --mask-top: 14%;
  --mask-side: 5%;
  --image-scale: 1.04;
  position: relative;
  overflow: hidden;
  aspect-ratio: 1 / 1;
}

.svc-duo__image {
  --parallax-y: 0px;
  position: absolute;
  inset: -10%;
  background-size: cover;
  background-position: center calc(50% + var(--parallax-y));
  filter: saturate(0.92) contrast(1.02);
  clip-path: inset(var(--mask-top) var(--mask-side) 0 var(--mask-side));
  transform: scale(var(--image-scale));
  transform-origin: center;
  transition: clip-path 0.2s linear, transform 0.2s linear;
}

.svc-duo__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--lg);
}

.svc-duo__card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--xl);
  border: 1px solid var(--line);
  background: var(--paper-warm);
  transition: transform 0.4s var(--ease-out), border-color 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
}

.svc-duo__card:hover {
  transform: translateY(-4px);
  border-color: var(--red);
  box-shadow: 0 12px 24px rgba(20, 18, 15, 0.04);
}

.svc-duo__card--dark {
  background: var(--ink);
  color: var(--paper-warm);
  border-color: var(--black);
}

.svc-duo__card--dark:hover {
  background: #1c1915;
  border-color: var(--red);
}

.svc-duo__card span {
  font-size: var(--fs-micro);
  font-weight: 500;
  color: var(--red);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.svc-duo__card h3 {
  margin: var(--lg) 0 var(--sm);
  font-family: var(--serif);
  font-size: var(--fs-subheading);
  font-weight: 400;
  line-height: 1.2;
}

.svc-duo__card--dark h3 {
  color: var(--paper-warm);
}

.svc-duo__card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: var(--fs-body);
  line-height: 1.7;
}

.svc-duo__card--dark p {
  color: rgba(255, 250, 240, 0.62);
}

/* ── Process Steps ─────────────────────────────────── */
.svc-steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--lg);
  border-top: 1px solid var(--line);
  padding-top: var(--xxl);
  margin-top: var(--xxl);
}

.svc-steps::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 1px;
  background: var(--red);
  transform: scaleX(var(--line-progress, 0));
  transform-origin: left;
}

.svc-step {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 220px;
  padding: var(--xl);
  border: 1px solid var(--line);
  background: var(--paper-warm);
  transition: transform 0.4s var(--ease-out), border-color 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
}

.svc-step:hover {
  transform: translateY(-4px);
  border-color: var(--red);
  box-shadow: 0 12px 24px rgba(20, 18, 15, 0.04);
}

.svc-step span {
  font-size: var(--fs-micro);
  font-weight: 500;
  color: var(--red);
  letter-spacing: 0.1em;
}

.svc-step h3 {
  margin: var(--lg) 0 var(--sm);
  font-family: var(--serif);
  font-size: var(--fs-subheading);
  font-weight: 400;
  line-height: 1.2;
}

.svc-step p {
  margin: 0;
  color: var(--ink-soft);
  font-size: var(--fs-body);
  line-height: 1.7;
}

/* ── Selected Works ───────────────────────────────── */
.svc-works {
  background: var(--paper-deep);
}

.svc-works__head {
  margin-bottom: var(--xxl);
}

.svc-works__title {
  margin: 0;
  font-family: var(--serif);
  font-size: var(--fs-title);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.svc-works__grid {
  position: relative;
  --line-progress: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--lg);
  border-top: 1px solid var(--line);
  padding-top: var(--xxl);
}

.svc-works__grid::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 1px;
  background: var(--red);
  transform: scaleX(var(--line-progress, 0));
  transform-origin: left;
}

.svc-works__card {
  display: flex;
  flex-direction: column;
  gap: var(--base);
  text-decoration: none;
  color: inherit;
  transition: transform 0.5s var(--ease-out);
}

.svc-works__card:hover {
  transform: translateY(-4px);
}

.svc-works__media {
  --mask-top: 16%;
  --mask-side: 6%;
  --image-scale: 1.06;
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.svc-works__image {
  --parallax-y: 0px;
  position: absolute;
  inset: -12%;
  background-size: cover;
  background-position: center calc(50% + var(--parallax-y));
  background-repeat: no-repeat;
  filter: saturate(0.92);
  clip-path: inset(var(--mask-top) var(--mask-side) 0 var(--mask-side));
  transform: scale(var(--image-scale));
  transform-origin: center;
  transition: clip-path 0.2s linear, transform 0.6s var(--ease-out);
}

.svc-works__card:hover .svc-works__image {
  transform: scale(1.08);
}

.svc-works__info {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-top: var(--base);
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
}

.svc-works__info span {
  font-family: var(--serif);
  font-size: var(--fs-subheading);
  font-weight: 300;
}

.svc-works__info strong {
  font-size: var(--fs-label);
  font-weight: 500;
  color: var(--red);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ── Cross-links ───────────────────────────────────── */
.svc-crosslinks {
  background: var(--paper-deep);
}

.svc-crosslinks__list {
  position: relative;
  --line-progress: 0;
  margin-top: var(--xxl);
  border-top: 1px solid var(--line);
}

.svc-crosslinks__list::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 1px;
  background: var(--red);
  transform: scaleX(var(--line-progress, 0));
  transform-origin: left;
}

.svc-crosslink {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: baseline;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line);
  transition: color 0.35s var(--ease-out), padding-left 0.35s var(--ease-out);
}

.svc-crosslink:hover {
  color: var(--red);
  padding-left: 0.45rem;
}

.svc-crosslink span {
  color: var(--red);
  font-size: var(--fs-micro);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.svc-crosslink strong {
  font-family: var(--serif);
  font-size: var(--fs-heading);
  font-weight: 300;
  line-height: 1.04;
  letter-spacing: -0.02em;
}

.svc-crosslink em {
  color: var(--ink-soft);
  font-size: var(--fs-label);
  font-style: normal;
  font-weight: 500;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

/* ── CTA Section ───────────────────────────────────── */
.svc-cta {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper-warm);
  padding: calc(var(--section-block) * 2) var(--shell);
}

.svc-cta__backdrop {
  --parallax-y: 0px;
  position: absolute;
  inset: -16%;
  background-size: cover;
  background-position: center calc(50% + var(--parallax-y));
  filter: saturate(0.6) contrast(1.1);
  opacity: 0.15;
  pointer-events: none;
}

.svc-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(circle at 50% 50%, transparent 20%, rgba(20, 18, 15, 0.6) 70%),
    linear-gradient(180deg, rgba(20, 18, 15, 0.4), rgba(20, 18, 15, 0.9));
  pointer-events: none;
}

.svc-cta__inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2rem;
}

.svc-cta__copy h2 {
  margin: 0;
  color: var(--paper-warm);
  font-family: var(--serif);
  font-size: var(--fs-title);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.svc-cta__copy p {
  margin: 0;
  max-width: 42ch;
  color: rgba(255, 250, 240, 0.66);
  font-size: var(--fs-body);
  line-height: 1.8;
}

.svc-cta__copy p:last-child {
  margin-top: 1.2rem;
}

.svc-cta__actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: flex-start;
}

/* ── View All Work — Auto-scrolling Depth Slider ──── */
.svc-works-slider {
  background: var(--paper-deep);
  overflow: hidden;
}

.svc-works-slider__head {
  margin-bottom: var(--xxl);
}

.svc-works-slider__title {
  margin: 0;
  font-family: var(--serif);
  font-size: var(--fs-title);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.svc-works-slider__track {
  position: relative;
  width: 100%;
  overflow: hidden;
  cursor: grab;
  -webkit-user-select: none;
  user-select: none;
}

.svc-works-slider__track:active {
  cursor: grabbing;
}

.svc-works-slider__rail {
  display: flex;
  gap: var(--lg);
  will-change: transform;
}

.svc-works-slider__slide {
  flex: 0 0 clamp(320px, 38vw, 520px);
  display: flex;
  flex-direction: column;
  gap: var(--base);
  text-decoration: none;
  color: inherit;
  transition: transform 0.5s var(--ease-out);
}

.svc-works-slider__slide:hover {
  transform: translateY(-6px);
}

.svc-works-slider__media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--line);
  background: var(--paper-warm);
}

.svc-works-slider__image {
  --parallax-y: 0px;
  position: absolute;
  inset: -14%;
  background-size: cover;
  background-position: center calc(50% + var(--parallax-y));
  background-repeat: no-repeat;
  filter: saturate(0.92) contrast(1.02);
  transform: scale(1.04);
  transition: transform 0.7s var(--ease-out);
}

.svc-works-slider__slide:hover .svc-works-slider__image {
  transform: scale(1.1);
}

.svc-works-slider__info {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-top: var(--base);
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
}

.svc-works-slider__info span {
  font-family: var(--serif);
  font-size: var(--fs-subheading);
  font-weight: 300;
}

.svc-works-slider__info strong {
  font-size: var(--fs-label);
  font-weight: 500;
  color: var(--red);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  flex-shrink: 0;
}

/* ── Responsive ────────────────────────────────────── */
@media (max-width: 1100px) {
  .svc-split,
  .svc-duo__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 980px) {
  .svc-gallery__grid,
  .svc-steps,
  .svc-works__grid {
    grid-template-columns: 1fr;
  }

  .svc-crosslink {
    grid-template-columns: 54px 1fr;
  }

  .svc-crosslink em {
    grid-column: 2;
  }
}

@media (max-width: 720px) {
  .service-hero {
    padding-top: calc(var(--header) + 4rem);
    padding-bottom: 2.4rem;
  }

  .service-hero__title {
    font-size: clamp(2.8rem, 12vw, 4.8rem);
  }

  .svc-specs__row {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }

  .svc-works-slider__slide {
    flex: 0 0 clamp(260px, 75vw, 360px);
  }

  .svc-works-slider__info {
    flex-direction: column;
    gap: 0.3rem;
  }
}

@media (max-width: 460px) {
  .svc-crosslink {
    grid-template-columns: 1fr;
  }

  .svc-crosslink em {
    grid-column: auto;
  }
}

/* ── Large Screen Cap ────────────────────────────── */
@media (min-width: 1441px) {
  .service-hero {
    padding-left: max(var(--shell), calc((100vw - 1440px) / 2 + var(--shell)));
    padding-right: max(var(--shell), calc((100vw - 1440px) / 2 + var(--shell)));
  }

  .svc-section {
    padding-left: max(var(--shell), calc((100vw - 1440px) / 2 + var(--shell)));
    padding-right: max(var(--shell), calc((100vw - 1440px) / 2 + var(--shell)));
  }

  .svc-cta {
    padding-left: max(var(--shell), calc((100vw - 1440px) / 2 + var(--shell)));
    padding-right: max(var(--shell), calc((100vw - 1440px) / 2 + var(--shell)));
  }
}