/* ============================================================
   OUROS.CSS / Ouros Designs case study
   Loaded after style.css + projects.css.
   Shares the site chrome (nav, footer, modal, .dp-explore) and
   adds the scroll-driven case-study layout under the oc- prefix.
   ============================================================ */

.oc-eyebrow,
.oc-num,
.oc-hero-label,
.oc-stack-tag,
.oc-stack-cost,
.oc-stack-count,
.oc-scrub-index,
.oc-decision-tag,
.oc-rail-hint,
.oc-frame-url,
.oc-status-grid span {
  font-family: "Space Grotesk", sans-serif;
}

/* --- Shared section head ------------------------------------ */
.oc-num {
  display: block;
  font-size: clamp(3.5rem, 7vw, 5.5rem);
  font-weight: 800;
  color: rgba(255, 255, 255, 0.06);
  line-height: 1;
  margin-bottom: 8px;
}

.oc-num--light {
  color: rgba(19, 25, 30, 0.07);
}

.oc-section-head {
  max-width: 780px;
  padding: 110px 60px 56px;
}

.oc-section-head h2 {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.9rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--dark-coffee);
  margin: 0 0 20px;
  padding-bottom: 0;
}

.oc-section-head p {
  font-size: 17px;
  font-weight: 300;
  line-height: 1.75;
  color: var(--text-black);
  margin: 0;
}

.oc-section-head--dark h2 {
  color: var(--white);
}

.oc-section-head--dark p {
  color: var(--grey);
}

/* --- Hero --------------------------------------------------- */
.oc-hero {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  background: radial-gradient(
    120% 95% at 50% 0%,
    #1c252e 0%,
    #13191e 50%,
    #0c1116 100%
  );
}

.oc-hero .ambient-bg {
  z-index: 1;
}

/* The hero art is a screenshot of the storefront, so it is blurred back
   into texture, otherwise its own headline competes with this one. */
.oc-hero-bg {
  position: absolute;
  inset: -12%;
  background-size: cover;
  background-position: center 60%;
  opacity: 0.4;
  filter: blur(7px) saturate(0.75);
  z-index: 0;
  will-change: transform;
}

.oc-hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    to bottom,
    rgba(12, 17, 22, 0.35) 0%,
    rgba(12, 17, 22, 0.55) 45%,
    rgba(12, 17, 22, 0.95) 100%
  );
}

.oc-hero-content {
  position: relative;
  z-index: 2;
  padding: 80px 60px 120px;
  max-width: 900px;
}

.oc-hero-label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 20px;
}

.oc-hero-title {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(3rem, 9vw, 7.5rem);
  font-weight: 800;
  color: var(--white);
  line-height: 0.9;
  letter-spacing: -0.03em;
  margin: 0 0 28px;
  padding-bottom: 0;
}

.oc-hero-sub {
  font-size: clamp(1.05rem, 1.8vw, 1.3rem);
  font-weight: 300;
  line-height: 1.65;
  color: var(--platinum);
  max-width: 560px;
  margin: 0 0 32px;
}

.oc-hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 13px;
  color: var(--grey);
  letter-spacing: 0.04em;
}

.oc-hero-meta .oc-dot {
  opacity: 0.35;
}

.oc-hero-scroll {
  position: absolute;
  right: 60px;
  bottom: 60px;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--grey);
}

.oc-hero-scroll-line {
  width: 1px;
  height: 56px;
  background: linear-gradient(to bottom, var(--orange), transparent);
}

/* --- Premise ------------------------------------------------ */
.oc-premise {
  padding: 120px 60px;
  background-color: var(--glass);
}

.oc-premise-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.oc-eyebrow {
  display: block;
  font-size: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 28px;
}

.oc-lede {
  font-size: clamp(1.2rem, 2.2vw, 1.6rem);
  font-weight: 300;
  line-height: 1.7;
  color: var(--dark-coffee);
  margin: 0 0 80px;
}

.oc-premise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  border-top: 1px solid var(--platinum);
  padding-top: 40px;
}

.oc-premise-num {
  display: block;
  font-family: "Space Grotesk", sans-serif;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--orange);
  margin-bottom: 14px;
}

.oc-premise-item h3 {
  font-family: "Space Grotesk", sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--dark-coffee);
  margin: 0 0 10px;
  padding-bottom: 0;
}

.oc-premise-item p {
  font-size: 15px;
  font-weight: 300;
  line-height: 1.7;
  color: var(--text-black);
  margin: 0;
}

/* --- Stack (pinned split) ----------------------------------- */
.oc-stack {
  display: flex;
  align-items: flex-start;
  background-color: var(--dark-coffee);
  color: var(--white);
}

.oc-stack-sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  width: 42%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.oc-stack-sticky-inner {
  padding: 60px 48px;
  width: 100%;
  display: flex;
  flex-direction: column;
}

.oc-stack-heading {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.7rem, 3.2vw, 2.6rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 0 0 24px;
  padding-bottom: 0;
}

.oc-stack-note {
  font-size: 15px;
  font-weight: 300;
  line-height: 1.75;
  color: var(--grey);
  max-width: 420px;
  margin: 0;
}

.oc-stack-indicator {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 56px;
}

.oc-stack-track {
  width: 100%;
  max-width: 320px;
  height: 2px;
  background-color: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.oc-stack-fill {
  height: 100%;
  width: 25%;
  background-color: var(--orange);
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.oc-stack-count {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--grey);
}

.oc-stack-scroll {
  flex: 1;
  min-width: 0;
}

.oc-stack-block {
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding: 72px 56px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.oc-stack-block-inner {
  max-width: 520px;
}

.oc-stack-tag {
  display: block;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 18px;
}

.oc-stack-block h3 {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 0 0 20px;
  padding-bottom: 0;
}

.oc-stack-block p {
  font-size: 16px;
  font-weight: 300;
  line-height: 1.8;
  color: var(--platinum);
  margin: 0 0 28px;
}

.oc-stack-cost {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grey);
  border: 1px solid rgba(255, 255, 255, 0.14);
  padding: 9px 16px;
}

.oc-stack-summary {
  padding: 96px 56px 120px;
}

.oc-stack-summary p {
  max-width: 560px;
  font-size: clamp(1.1rem, 2vw, 1.45rem);
  font-weight: 300;
  line-height: 1.65;
  color: var(--white);
  margin: 0;
}

.oc-stack-summary strong {
  font-weight: 400;
  color: var(--orange);
}

/* --- Foundations -------------------------------------------- */
.oc-foundations {
  background-color: var(--glass);
  padding-bottom: 120px;
}

.oc-figure {
  margin: 0;
}

.oc-figure img {
  display: block;
  width: 100%;
  height: auto;
  background-color: var(--diamond);
}

.oc-figure figcaption {
  font-family: "Space Grotesk", sans-serif;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--grey);
  padding: 16px 60px 0;
  max-width: 620px;
}

.oc-figure--wide {
  padding: 0 60px;
}

.oc-figure--wide figcaption {
  padding-left: 0;
  padding-right: 0;
}

.oc-rules {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding: 72px 60px 0;
  max-width: 1400px;
}

.oc-rule {
  border-top: 1px solid var(--platinum);
  padding-top: 18px;
}

.oc-rule span {
  display: block;
  font-family: "Space Grotesk", sans-serif;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--orange);
  margin-bottom: 12px;
}

.oc-rule p {
  font-size: 15px;
  font-weight: 300;
  line-height: 1.7;
  color: var(--text-black);
  margin: 0;
}

/* --- Screens: pinned scrub frames --------------------------- */
.oc-screens {
  background-color: var(--dark-coffee);
  padding-bottom: 120px;
}

/* Extra height gives the sticky frame room to scrub its page through. */
.oc-scrub {
  position: relative;
  height: 300vh;
}

.oc-scrub-sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.oc-scrub-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
  align-items: center;
  width: 100%;
  padding: 0 60px;
  max-width: 1500px;
  margin: 0 auto;
}

.oc-scrub-layout--flip .oc-scrub-caption {
  order: 2;
}

.oc-scrub-index {
  display: block;
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 16px;
}

.oc-scrub-caption h3 {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 0 0 20px;
  padding-bottom: 0;
}

.oc-scrub-caption p {
  font-size: 16px;
  font-weight: 300;
  line-height: 1.8;
  color: var(--platinum);
  margin: 0;
  max-width: 460px;
}

.oc-scrub-frame {
  border: 1px solid rgba(255, 255, 255, 0.12);
  background-color: #0c1116;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.45);
  overflow: hidden;
}

.oc-frame-chrome {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  background-color: rgba(255, 255, 255, 0.04);
}

.oc-frame-dots {
  display: flex;
  gap: 6px;
}

.oc-frame-dots i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.18);
}

.oc-frame-url {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--grey);
}

.oc-frame-window {
  height: 62vh;
  min-height: 320px;
  overflow: hidden;
  position: relative;
  background-color: #faf9f7;
}

.oc-frame-window img {
  display: block;
  width: 100%;
  height: auto;
  will-change: transform;
}

.oc-states {
  padding-top: 40px;
}

.oc-states .oc-figure {
  padding: 0 60px;
}

.oc-states figcaption {
  padding-left: 0;
  padding-right: 0;
}

/* --- Two decisions ------------------------------------------ */
.oc-decisions {
  background-color: var(--glass);
  padding-bottom: 40px;
}

.oc-decision {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 56px;
  align-items: center;
  padding: 60px;
  max-width: 1500px;
  margin: 0 auto;
}

.oc-decision--flip .oc-decision-copy {
  order: 2;
}

.oc-decision-tag {
  display: block;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 20px;
}

.oc-decision-copy p {
  font-size: 17px;
  font-weight: 300;
  line-height: 1.8;
  color: var(--text-black);
  margin: 0;
}

.oc-decision .oc-figure figcaption {
  padding-left: 0;
  padding-right: 0;
}

/* --- Mobile rail (horizontal) ------------------------------- */
/* Fills the viewport while pinned, so nothing below can creep into view
   behind the filmstrip. */
.oc-rail {
  background-color: var(--dark-coffee);
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.oc-rail-viewport {
  width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.oc-rail-viewport::-webkit-scrollbar {
  display: none;
}

/* While GSAP drives the track, native horizontal scrolling is off. */
.oc-rail-viewport.oc-rail-pinned {
  overflow-x: hidden;
}

.oc-rail-track {
  display: flex;
  align-items: center;
  gap: 48px;
  padding: 110px 60px;
  width: max-content;
}

.oc-rail-intro {
  width: 360px;
  flex: none;
  align-self: center;
}

.oc-rail-intro h2 {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.9rem, 3.6vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 0 0 20px;
  padding-bottom: 0;
}

.oc-rail-intro p {
  font-size: 16px;
  font-weight: 300;
  line-height: 1.8;
  color: var(--platinum);
  margin: 0 0 28px;
}

.oc-rail-hint {
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--orange);
}

.oc-rail-item {
  flex: none;
  width: 300px;
  margin: 0;
}

.oc-phone {
  height: 58vh;
  min-height: 380px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background-color: #faf9f7;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
}

.oc-phone img {
  display: block;
  width: 100%;
  height: auto;
}

.oc-rail-item figcaption {
  font-family: "Space Grotesk", sans-serif;
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--grey);
  padding-top: 16px;
}

.oc-rail-item figcaption b {
  font-weight: 700;
  color: var(--white);
}

/* --- Status ------------------------------------------------- */
/* Lands straight out of the pinned rail, so it holds a full screen on its
   own. No pinning, no reveal, nothing that can be scrolled past. */
.oc-status {
  background-color: var(--dark-coffee);
  color: var(--white);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.oc-status-inner {
  padding: 120px 60px;
  max-width: 860px;
}

.oc-status-heading {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.9rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 0 0 24px;
  padding-bottom: 0;
}

.oc-status-text {
  font-size: 18px;
  font-weight: 300;
  line-height: 1.8;
  color: var(--platinum);
  margin: 0 0 48px;
}

.oc-status-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 32px;
  margin-bottom: 48px;
}

.oc-status-grid span {
  display: block;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 10px;
}

.oc-status-grid p {
  font-size: 15px;
  font-weight: 300;
  line-height: 1.6;
  color: var(--platinum);
  margin: 0;
}

.oc-status-cta {
  background-color: var(--white);
  color: var(--dark-coffee);
  display: inline-flex;
  width: auto;
}

.oc-status-cta .arrow .tic,
.oc-status-cta .arrow .line {
  background-color: var(--dark-coffee);
}

/* --- Reveal (progressively enhanced by GSAP) ---------------- */
.oc-reveal {
  opacity: 0;
  transform: translateY(24px);
}

.oc-no-gsap .oc-reveal {
  opacity: 1;
  transform: none;
}

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 1100px) {
  .oc-scrub-layout,
  .oc-decision {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .oc-scrub-layout--flip .oc-scrub-caption,
  .oc-decision--flip .oc-decision-copy {
    order: 0;
  }

  .oc-frame-window {
    height: 46vh;
  }

  .oc-rules {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .oc-section-head,
  .oc-premise,
  .oc-status-inner {
    padding-left: 24px;
    padding-right: 24px;
  }

  .oc-status {
    min-height: 0;
    display: block;
  }

  .oc-status-inner {
    padding-top: 80px;
    padding-bottom: 80px;
  }

  .oc-hero-content {
    padding: 60px 24px 100px;
  }

  .oc-hero-scroll {
    display: none;
  }

  .oc-premise-grid,
  .oc-status-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .oc-lede {
    margin-bottom: 48px;
  }

  /* Stack: stop pinning, stack vertically */
  .oc-stack {
    flex-direction: column;
  }

  .oc-stack-sticky {
    position: relative;
    height: auto;
    width: 100%;
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .oc-stack-sticky-inner {
    padding: 80px 24px 56px;
  }

  .oc-stack-indicator {
    display: none;
  }

  .oc-stack-block {
    min-height: 0;
    padding: 48px 24px;
  }

  .oc-stack-summary {
    padding: 56px 24px 80px;
  }

  /* Screens: unpin the frames, show them whole */
  .oc-scrub {
    height: auto;
  }

  .oc-scrub-sticky {
    position: relative;
    height: auto;
    display: block;
    padding: 56px 0;
  }

  .oc-scrub-layout {
    padding: 0 24px;
  }

  .oc-frame-window {
    height: 60vh;
    min-height: 300px;
    overflow-y: auto;
  }

  .oc-figure--wide,
  .oc-states .oc-figure,
  .oc-decision {
    padding-left: 24px;
    padding-right: 24px;
  }

  .oc-figure figcaption {
    padding-left: 0;
    padding-right: 0;
  }

  .oc-rules {
    padding: 56px 24px 0;
  }

  .oc-rail {
    min-height: 0;
    display: block;
  }

  .oc-rail-track {
    padding: 80px 24px;
    gap: 32px;
  }

  .oc-rail-intro {
    width: 280px;
  }

  .oc-rail-item {
    width: 240px;
  }

  .oc-phone {
    height: 50vh;
    min-height: 320px;
  }
}

@media (max-width: 600px) {
  .oc-rules {
    grid-template-columns: 1fr;
  }

  .oc-rail-intro {
    width: 260px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .oc-reveal {
    opacity: 1;
    transform: none;
  }

  .oc-hero-bg {
    inset: 0;
  }
}