/* =========================================================
   PROJECT DETAILS - ADDITIVE CASE STUDY OVERLAY
   This layer is intentionally isolated from the original
   portfolio visual system.
   ========================================================= */

.sb-project-details-overlay {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: none;
  overflow-y: auto;
  background: #0b0b0b;
  color: #fff;
  opacity: 0;
  transition: opacity .3s ease;
  isolation: isolate;
  will-change: opacity;
}

.sb-project-details-overlay.is-open {
  display: block;
  opacity: 1;
}

.sb-project-details-overlay.is-closing {
  display: block !important;
  opacity: 0;
  pointer-events: none;
}

.sb-project-details-overlay * {
  box-sizing: border-box;
}

.sb-project-details-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.72);
  pointer-events: none;
}

.sb-project-details-inner {
  position: relative;
  z-index: 1;
  width: min(1500px, calc(100% - 48px));
  margin: 0 auto;
  padding: 34px 0 100px;
}

.sb-project-details-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255,255,255,.14);
}

.sb-project-details-close {
  position: fixed;
  top: 50%;
  right: clamp(18px, 3vw, 52px);
  z-index: 3;
  appearance: none;
  border: 1px solid rgba(255,255,255,.25);
  background: #fff;
  color: #0b0b0b;
  border-radius: 999px;
  padding: 18px 24px;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transform: translateY(-50%);
  box-shadow: 0 18px 45px rgba(0,0,0,.28);
  transition: background .25s ease, color .25s ease, transform .25s ease;
}

.sb-project-details-close:hover {
  background: #0b0b0b;
  color: #fff;
  transform: translateY(-50%) translateX(-5px);
}

.sb-project-details-kicker {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: rgba(255,255,255,.5);
}

.sb-project-details-hero {
  padding: 80px 0 70px;
  animation: sb-project-detail-enter .65s cubic-bezier(.2,.75,.2,1) both;
}

.sb-project-details-hero h2 {
  max-width: 1100px;
  margin: 10px 0 25px;
  font-size: clamp(48px, 8vw, 120px);
  line-height: .92;
  letter-spacing: -.045em;
}

.sb-project-details-summary {
  max-width: 900px;
  margin: 0;
  color: rgba(255,255,255,.68);
  font-size: clamp(18px, 2vw, 26px);
  line-height: 1.55;
}

.sb-project-details-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.sb-project-details-actions a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255,255,255,.3);
  color: #fff;
  text-decoration: none;
  border-radius: 999px;
  padding: 13px 19px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
}

.sb-project-details-actions a:hover {
  background: #fff;
  color: #0b0b0b;
}

.sb-project-details-section {
  padding: 70px 0;
  border-top: 1px solid rgba(255,255,255,.14);
  animation: sb-project-detail-enter .7s cubic-bezier(.2,.75,.2,1) both;
}

.sb-project-details-section:nth-of-type(2) { animation-delay: .05s; }
.sb-project-details-section:nth-of-type(3) { animation-delay: .1s; }
.sb-project-details-section:nth-of-type(4) { animation-delay: .15s; }
.sb-project-details-section:nth-of-type(5) { animation-delay: .2s; }

.sb-project-details-heading {
  display: grid;
  grid-template-columns: .7fr 1.3fr;
  gap: 60px;
  align-items: start;
}

.sb-project-details-heading h3 {
  margin: 0;
  font-size: clamp(34px, 5vw, 70px);
  line-height: .98;
  letter-spacing: -.035em;
}

.sb-project-details-copy {
  max-width: 850px;
}

.sb-project-details-copy p {
  margin: 0 0 18px;
  color: rgba(255,255,255,.68);
  font-size: 17px;
  line-height: 1.75;
}

.sb-project-details-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 13px;
}

.sb-project-details-list li {
  padding: 0 0 13px 25px;
  position: relative;
  border-bottom: 1px solid rgba(255,255,255,.1);
  color: rgba(255,255,255,.75);
  font-size: 16px;
  line-height: 1.65;
}

.sb-project-details-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 7px;
  height: 7px;
  border: 1px solid rgba(255,255,255,.7);
  border-radius: 50%;
}

.sb-project-details-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.sb-project-details-tech span {
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 999px;
  padding: 9px 13px;
  color: rgba(255,255,255,.72);
  font-size: 12px;
}

.sb-project-details-architecture {
  display: grid;
  grid-template-columns: repeat(5, minmax(0,1fr));
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 18px;
  overflow: hidden;
}

.sb-project-details-architecture div {
  min-height: 150px;
  padding: 22px;
  border-right: 1px solid rgba(255,255,255,.14);
}

.sb-project-details-architecture div:last-child {
  border-right: 0;
}

.sb-project-details-architecture small {
  display: block;
  color: rgba(255,255,255,.4);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .12em;
}

.sb-project-details-architecture strong {
  display: block;
  margin-top: 35px;
  font-size: 17px;
  line-height: 1.35;
}

.sb-project-details-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 20px;
}

.sb-project-details-shot:first-child {
  grid-column: 1 / -1;
}

.sb-project-details-shot {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 16px;
  background: #121212;
  opacity: 0;
  transform: translateY(34px) scale(.97);
  transition: opacity .7s cubic-bezier(.2,.75,.2,1), transform .7s cubic-bezier(.2,.75,.2,1), border-color .25s ease;
}

.sb-project-details-shot.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.sb-project-details-shot img {
  width: 100%;
  display: block;
  height: auto;
  min-height: 300px;
  object-fit: contain;
  background: #101010;
  transition: transform .8s cubic-bezier(.2,.75,.2,1);
}

.sb-project-details-shot:hover img {
  transform: scale(1.025);
}

.sb-project-details-shot figcaption {
  padding: 12px 15px;
  color: rgba(255,255,255,.45);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.sb-project-details-note {
  padding: 22px;
  border-left: 2px solid rgba(255,255,255,.5);
  background: rgba(255,255,255,.035);
  color: rgba(255,255,255,.68);
  line-height: 1.7;
}

body.sb-project-details-open {
  overflow: hidden;
}

@keyframes sb-project-detail-enter {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1000px) {
  .sb-project-details-heading {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .sb-project-details-architecture {
    grid-template-columns: 1fr 1fr;
  }

  .sb-project-details-architecture div:nth-child(2n) {
    border-right: 0;
  }

  .sb-project-details-architecture div {
    border-bottom: 1px solid rgba(255,255,255,.14);
  }
}

@media (max-width: 700px) {
  .sb-project-details-inner {
    width: min(100% - 32px, 1500px);
    padding-bottom: 70px;
  }

  .sb-project-details-top {
    padding-bottom: 20px;
    padding-right: 8px;
  }

  .sb-project-details-close {
    top: auto;
    right: 16px;
    bottom: 18px;
    padding: 15px 19px;
    transform: none;
  }

  .sb-project-details-close:hover {
    transform: translateY(-3px);
  }

  .sb-project-details-hero {
    padding: 55px 0;
  }

  .sb-project-details-section {
    padding: 55px 0;
  }

  .sb-project-details-gallery {
    grid-template-columns: 1fr;
  }

  .sb-project-details-architecture {
    grid-template-columns: 1fr;
  }

  .sb-project-details-architecture div,
  .sb-project-details-architecture div:nth-child(2n) {
    border-right: 0;
    border-bottom: 1px solid rgba(255,255,255,.14);
  }

  .sb-project-details-architecture div:last-child {
    border-bottom: 0;
  }
}


/* --- Project details usability fixes --- */
html.sb-project-details-html,
body.sb-project-details-open {
  overflow: hidden !important;
}

.sb-project-details-overlay {
  height: 100vh !important;
  max-height: 100vh !important;
  overflow-x: hidden !important;
  overflow-y: auto !important;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  touch-action: pan-y;
  scrollbar-width: auto;
}

.sb-project-details-overlay.is-open {
  display: block !important;
  visibility: visible;
}

.sb-project-details-inner {
  min-height: 100%;
  padding-bottom: 140px;
}

.sb-project-details-overlay .sb-project-details-kicker {
  color: #c9c9c9 !important;
}

.sb-project-details-overlay .sb-project-details-hero h2,
.sb-project-details-overlay .sb-project-details-heading h3 {
  color: #ffffff !important;
  opacity: 1 !important;
}

.sb-project-details-overlay .sb-project-details-summary,
.sb-project-details-overlay .sb-project-details-copy p,
.sb-project-details-overlay .sb-project-details-list li,
.sb-project-details-overlay .sb-project-details-note,
.sb-project-details-overlay .sb-project-details-architecture strong {
  color: #e7e7e7 !important;
  opacity: 1 !important;
}

.sb-project-details-overlay .sb-project-details-list li::before {
  border-color: #e7e7e7 !important;
}

.sb-project-details-overlay .sb-project-details-architecture small,
.sb-project-details-overlay .sb-project-details-tech span,
.sb-project-details-overlay .sb-project-details-shot figcaption {
  color: #cfcfcf !important;
  opacity: 1 !important;
}

.sb-project-details-overlay .sb-project-details-tech span {
  border-color: rgba(255,255,255,.3) !important;
}

.sb-project-details-gallery {
  width: 100%;
  align-items: start;
}

.sb-project-details-shot {
  min-width: 0;
  background: #151515 !important;
  border-color: rgba(255,255,255,.18) !important;
}

.sb-project-details-shot img {
    min-height: 210px;
  }

  .sb-project-details-shot:first-child {
    grid-column: auto;
  }

  .sb-project-details-shot img {
  width: 100% !important;
  height: auto !important;
  max-width: 100%;
  object-fit: contain;
  background: #101010;
}

.sb-project-details-shot figcaption {
  background: #151515;
}

@media (max-width: 700px) {
  .sb-project-details-overlay {
    height: 100dvh !important;
    max-height: 100dvh !important;
  }
}

/* --- Final project detail presentation --- */
.sb-project-details-overlay .sb-project-details-close {
  position: fixed !important;
  top: 24px !important;
  right: 28px !important;
  bottom: auto !important;
  z-index: 100001 !important;
  display: inline-flex !important;
  visibility: visible !important;
  opacity: 1 !important;
  align-items: center;
  justify-content: center;
  min-width: 178px;
  min-height: 58px;
  padding: 18px 24px !important;
  transform: none !important;
  pointer-events: auto;
}

.sb-project-details-overlay .sb-project-details-home-action {
  display: inline-flex !important;
}

.sb-project-details-overlay .sb-project-details-gallery {
  display: grid !important;
  grid-template-columns: minmax(0, 1fr) !important;
  gap: 28px !important;
}

.sb-project-details-overlay .sb-project-details-shot,
.sb-project-details-overlay .sb-project-details-shot.is-visible {
  opacity: 1 !important;
  transform: none !important;
  min-width: 0;
  animation: sb-project-image-reveal .8s cubic-bezier(.2,.75,.2,1) both;
}

.sb-project-details-overlay .sb-project-details-shot:nth-child(2) { animation-delay: .08s; }
.sb-project-details-overlay .sb-project-details-shot:nth-child(3) { animation-delay: .16s; }
.sb-project-details-overlay .sb-project-details-shot:nth-child(4) { animation-delay: .24s; }
.sb-project-details-overlay .sb-project-details-shot:nth-child(5) { animation-delay: .32s; }

.sb-project-details-overlay .sb-project-details-shot:first-child {
  grid-column: 1 / -1 !important;
}

.sb-project-details-overlay .sb-project-details-shot img {
  display: block !important;
  width: 100% !important;
  height: auto !important;
  min-height: 0 !important;
  max-width: none !important;
  object-fit: initial !important;
  background: transparent;
}

@keyframes sb-project-image-reveal {
  from {
    opacity: 0;
    transform: translateY(42px) scale(.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (max-width: 700px) {
  .sb-project-details-overlay .sb-project-details-close {
    position: fixed !important;
    top: auto !important;
    right: 16px !important;
    bottom: auto !important;
    bottom: 18px !important;
    min-width: 0;
    min-height: 52px;
    padding: 15px 19px !important;
    transform: none !important;
  }

  .sb-project-details-overlay .sb-project-details-shot:first-child {
    grid-column: auto !important;
  }
}