/* ============================================
   CASE STUDY PAGES — SHARED STYLES
   Tech Brutalist editorial layout system
   ============================================ */

/* === RESET & BASE === */
.cs-page {
  background: #000;
  color: #fff;
  font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
  cursor: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

@media (pointer: coarse) {
  .cs-page { cursor: auto; }
}

/* === CUSTOM CURSOR === */
.cs-cursor {
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0;
  transition: opacity 0.3s ease;
  mix-blend-mode: difference;
}

@media (pointer: fine) {
  .cs-cursor { opacity: 1; }
  .cs-page a,
  .cs-page button { cursor: none; }
}

.cs-cursor__bracket {
  position: absolute;
  font-family: 'Major Mono Display', monospace;
  font-size: 1.25rem;
  color: #ffffff;
  line-height: 1;
  display: block;
  will-change: transform;
  transform: translate(-50%, -50%);
}

/* === BACK NAVIGATION === */
.cs-back {
  position: fixed;
  top: 2rem;
  left: 2rem;
  z-index: 100;
  mix-blend-mode: difference;
}

@media (max-width: 768px) {
  .cs-back {
    top: 1.2rem;
    left: 1.2rem;
  }
}

/* === BRACKET LINK (ported from main site) === */
.cs-bracket-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  color: #fff;
  font-family: 'Montserrat', sans-serif;
  font-weight: 200;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  font-size: clamp(0.8rem, 1.7vw, 1.05rem);
  padding: 0.45rem 0.2rem;
  line-height: 1;
  --bracket-gap: 0.5em;
  --bracket-gap-hover: 0.9em;
  --slot-duration: 0.55s;
  --slot-ease: cubic-bezier(.2, .7, .2, 1);
  --slot-bleed: 0.32em;
  overflow: visible;
}

.cs-bracket-link::before,
.cs-bracket-link::after {
  content: '[';
  display: inline-block;
  color: inherit;
  margin: 0 var(--br-gap, var(--bracket-gap));
  transition: transform 0.35s var(--slot-ease);
  flex-shrink: 0;
  line-height: 1;
}

.cs-bracket-link::after {
  content: ']';
}

.cs-bracket-link::before {
  transform: translateX(calc(-1 * var(--br-off-l, 0em)));
}

.cs-bracket-link::after {
  transform: translateX(var(--br-off-r, 0em));
}

/* When JS splits into characters, remove letter-spacing */
.cs-bracket-link.cs-enhanced {
  letter-spacing: 0;
}

/* Per-character slot structure */
.cs-bracket-label {
  display: inline-flex;
  gap: var(--char-gap, 0.3em);
  height: 1em;
  overflow: visible;
  vertical-align: baseline;
}

.cs-bracket-char {
  display: inline-block;
  height: calc(1em + var(--slot-bleed) * 2);
  overflow: hidden;
  transform: translateY(calc(-1 * var(--slot-bleed)));
}

.cs-bracket-char-track {
  display: block;
  will-change: transform;
  transform-origin: center center;
  transform: translateZ(0);
  backface-visibility: hidden;
}

.cs-bracket-char-line {
  display: block;
  line-height: calc(1em + var(--slot-bleed) * 2);
  height: calc(1em + var(--slot-bleed) * 2);
  color: inherit;
}

@media (prefers-reduced-motion: reduce) {
  .cs-bracket-link:hover .cs-bracket-char-track,
  .cs-bracket-link:focus-visible .cs-bracket-char-track {
    animation: none !important;
    transform: none !important;
  }
}

/* === HERO === */
.cs-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 0 6vw 8vh;
}

.cs-hero__number {
  position: absolute;
  top: -0.15em;
  right: 6vw;
  font-family: 'Major Mono Display', monospace;
  font-size: clamp(15rem, 25vw, 30rem);
  color: rgba(255, 255, 255, 0.03);
  line-height: 1;
  pointer-events: none;
  user-select: none;
}

.cs-hero__label {
  font-family: 'Montserrat', sans-serif;
  font-weight: 300;
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 1.5rem;
}

.cs-hero__title {
  font-family: 'Major Mono Display', monospace;
  font-weight: 400;
  font-size: clamp(2rem, 6vw, 5rem);
  line-height: 1.1;
  letter-spacing: 0;
  max-width: 14ch;
  margin-bottom: 2rem;
  text-transform: none;
  font-variant: normal;
}

.cs-hero__meta {
  display: flex;
  gap: 2rem;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  font-weight: 300;
}

.cs-hero__meta span::before {
  content: '[ ';
  color: rgba(255, 255, 255, 0.2);
}

.cs-hero__meta span::after {
  content: ' ]';
  color: rgba(255, 255, 255, 0.2);
}

.cs-hero__scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  font-family: 'Major Mono Display', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.2);
  animation: cs-pulse 2s ease-in-out infinite;
}

@keyframes cs-pulse {
  0%, 100% { opacity: 0.2; }
  50% { opacity: 0.6; }
}

/* === SECTION SYSTEM === */
.cs-section {
  padding: 10vh 6vw;
  position: relative;
}

.cs-section--narrow {
  max-width: 800px;
  margin: 0 auto;
  padding-left: 6vw;
  padding-right: 6vw;
}

.cs-section__label {
  font-family: 'Major Mono Display', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  text-transform: none;
  color: rgba(255, 255, 255, 0.25);
  margin-bottom: 3rem;
}

.cs-section__label::before {
  content: '';
}

/* === TYPOGRAPHY === */
.cs-heading {
  font-family: 'Major Mono Display', monospace;
  font-weight: 400;
  font-size: clamp(1.5rem, 4vw, 3rem);
  line-height: 1.2;
  margin-bottom: 2rem;
  letter-spacing: 0;
  text-transform: none;
  font-variant: normal;
}

.cs-subheading {
  font-family: 'Major Mono Display', monospace;
  font-weight: 400;
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  line-height: 1.3;
  margin-bottom: 1.5rem;
  color: rgba(255, 255, 255, 0.9);
  text-transform: none;
  font-variant: normal;
}

.cs-body {
  font-family: 'Montserrat', sans-serif;
  font-weight: 300;
  font-size: clamp(0.9rem, 1.2vw, 1.05rem);
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.65);
  max-width: 620px;
}

.cs-body + .cs-body {
  margin-top: 1.5rem;
}

.cs-body strong {
  color: #fff;
  font-weight: 600;
}

/* === IMAGE COMPONENTS === */
.cs-figure {
  margin: 6vh 0;
  position: relative;
}

.cs-figure__frame {
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.06);
  overflow: hidden;
  background: #0a0a0a;
}

.cs-figure__frame::before {
  content: attr(data-label);
  position: absolute;
  top: 0.8rem;
  right: 1rem;
  font-family: 'Major Mono Display', monospace;
  font-size: 0.5rem;
  letter-spacing: 0.15em;
  color: rgba(255, 255, 255, 0.15);
  z-index: 1;
}

.cs-figure__img {
  display: block;
  width: 100%;
  height: auto;
  filter: grayscale(1) contrast(1.1);
  opacity: 0.75;
  transition: filter 0.4s ease, opacity 0.4s ease;
}

.cs-figure__frame:hover .cs-figure__img {
  filter: grayscale(0.3) contrast(1.05);
  opacity: 0.9;
}

.cs-figure__caption {
  margin-top: 0.8rem;
  font-family: 'Major Mono Display', monospace;
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  color: rgba(255, 255, 255, 0.2);
}

/* Placeholder state (until real images are added) */
.cs-figure__placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  padding: 3rem 2rem;
  text-align: center;
  flex-direction: column;
  gap: 1rem;
}

.cs-figure__placeholder-icon {
  font-family: 'Major Mono Display', monospace;
  font-size: 2rem;
  color: rgba(255, 255, 255, 0.06);
}

.cs-figure__placeholder-text {
  font-family: 'Montserrat', sans-serif;
  font-weight: 300;
  font-size: 0.75rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.2);
  max-width: 320px;
}

/* Side-by-side images (before/after) */
.cs-figure--pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin: 6vh 0;
}

.cs-figure--pair .cs-figure__frame {
  margin: 0;
}

@media (max-width: 768px) {
  .cs-figure--pair {
    grid-template-columns: 1fr;
  }
  .cs-figure__placeholder {
    min-height: 200px;
  }
}

/* Full-bleed image (breaks out of narrow container) */
.cs-figure--wide {
  margin-left: -6vw;
  margin-right: -6vw;
  width: calc(100% + 12vw);
}

/* === PULL QUOTE === */
.cs-pullquote {
  font-family: 'Major Mono Display', monospace;
  font-size: clamp(1.2rem, 3vw, 2.2rem);
  line-height: 1.4;
  padding: 8vh 0;
  position: relative;
  max-width: 16ch;
}

.cs-pullquote::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 40px;
  height: 1px;
  background: rgba(255, 255, 255, 0.2);
}

/* === STAT BLOCKS === */
.cs-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1px;
  background: rgba(255, 255, 255, 0.08);
  margin: 6vh 0;
}

.cs-stat {
  background: #000;
  padding: 2.5rem 2rem;
}

.cs-stat__value {
  font-family: 'Major Mono Display', monospace;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1;
  margin-bottom: 0.75rem;
  color: #fff;
}

.cs-stat__label {
  font-family: 'Montserrat', sans-serif;
  font-weight: 300;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.35);
}

/* === SPLIT LAYOUT === */
.cs-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: rgba(255, 255, 255, 0.05);
  margin: 6vh 0;
}

.cs-split__col {
  background: #000;
  padding: 6vh 5vw;
}

.cs-split__col--dark {
  background: #0a0a0a;
}

@media (max-width: 768px) {
  .cs-split {
    grid-template-columns: 1fr;
  }
}

/* === TECH STACK PILLS === */
.cs-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 2rem 0;
}

.cs-tech__pill {
  font-family: 'Major Mono Display', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  padding: 0.4rem 0.8rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.5);
  transition: border-color 0.3s ease, color 0.3s ease;
}

.cs-tech__pill:hover {
  border-color: rgba(255, 255, 255, 0.4);
  color: #fff;
}

/* === TIMELINE === */
.cs-timeline {
  position: relative;
  padding-left: 3rem;
  margin: 4vh 0;
}

.cs-timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, transparent, rgba(255,255,255,0.15), transparent);
}

.cs-timeline__item {
  position: relative;
  padding-bottom: 3rem;
}

.cs-timeline__item::before {
  content: '';
  position: absolute;
  left: -3rem;
  top: 0.5rem;
  width: 5px;
  height: 5px;
  background: rgba(255, 255, 255, 0.3);
}

.cs-timeline__step {
  font-family: 'Major Mono Display', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.3);
  margin-bottom: 0.75rem;
}

.cs-timeline__text {
  font-family: 'Montserrat', sans-serif;
  font-weight: 300;
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
  max-width: 500px;
}

/* === IMAGE / SCREENSHOT === */
.cs-image {
  width: 100%;
  margin: 6vh 0;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.cs-image img {
  width: 100%;
  height: auto;
  display: block;
  filter: grayscale(0.1);
  transition: filter 0.5s ease;
}

.cs-image:hover img {
  filter: grayscale(0);
}

.cs-image__caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1rem 1.5rem;
  background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
  font-family: 'Montserrat', sans-serif;
  font-weight: 300;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.4);
}

/* === DIVIDER LINE === */
.cs-divider {
  width: 100%;
  height: 1px;
  background: rgba(255, 255, 255, 0.06);
  margin: 0;
  border: none;
}

/* === MEGA TEXT (background emphasis) === */
.cs-mega {
  font-family: 'Major Mono Display', monospace;
  font-size: clamp(4rem, 12vw, 12rem);
  line-height: 0.9;
  color: rgba(255, 255, 255, 0.03);
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
  overflow: hidden;
}

/* === CTA SECTION === */
.cs-cta {
  text-align: center;
  padding: 15vh 6vw;
}

.cs-cta__heading {
  font-family: 'Major Mono Display', monospace;
  font-size: clamp(1.2rem, 3vw, 2rem);
  margin-bottom: 2rem;
}

.cs-cta__link {
  /* Now uses .cs-bracket-link class — see bracket link section above */
}

.cs-cta__link:hover {
  /* Handled by bracket-link JS animation */
}

/* === FOOTER === */
.cs-footer {
  padding: 3rem 6vw;
  text-align: center;
  font-family: 'Major Mono Display', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.2);
}

/* === SCROLL ANIMATIONS (GSAP targets) === */
.cs-reveal {
  opacity: 0;
  transform: translateY(30px);
}

/* === Before/After comparison === */
.cs-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin: 6vh 0;
  position: relative;
}

.cs-compare::after {
  content: 'VS';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: 'Major Mono Display', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.3);
  background: #000;
  padding: 0.5rem 1rem;
  z-index: 1;
}

.cs-compare__side {
  padding: 4vh 4vw;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.cs-compare__side--before {
  border-right: none;
}

.cs-compare__tag {
  font-family: 'Major Mono Display', monospace;
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.25);
  margin-bottom: 1.5rem;
}

@media (max-width: 768px) {
  .cs-compare {
    grid-template-columns: 1fr;
  }
  .cs-compare__side--before {
    border-right: 1px solid rgba(255, 255, 255, 0.06);
    border-bottom: none;
  }
  .cs-compare::after {
    top: auto;
    bottom: 50%;
  }
}

/* === CODE BLOCK === */
.cs-code {
  background: #0a0a0a;
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 2rem;
  font-family: 'Major Mono Display', monospace;
  font-size: 0.75rem;
  line-height: 2;
  color: rgba(255, 255, 255, 0.5);
  overflow-x: auto;
  margin: 3vh 0;
}

.cs-code .cs-code__comment {
  color: rgba(255, 255, 255, 0.2);
}

.cs-code .cs-code__highlight {
  color: #00ff64;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .cs-hero {
    padding: 0 5vw 6vh;
  }

  .cs-hero__number {
    font-size: clamp(8rem, 30vw, 15rem);
    right: 3vw;
  }

  .cs-section {
    padding: 8vh 5vw;
  }

  .cs-stats {
    grid-template-columns: 1fr 1fr;
  }

  .cs-pullquote {
    font-size: clamp(1rem, 5vw, 1.5rem);
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  .cs-stats {
    grid-template-columns: 1fr;
  }

  .cs-hero__meta {
    flex-direction: column;
    gap: 0.5rem;
  }
}