/* =========================
HEADER — SOLID STATE
(overrides transparent default from style.css)
========================= */

.header.solid {
  background: var(--base-bg);
}


/* =========================
HERO
========================= */

.hero {
  position: relative;
  height: 100vh;
}

.hero-image {
  height: 100%;
  background: url("Media/Hero.jpg") center/cover no-repeat;
}

.hero-overlay {
  position: absolute;
  bottom: 12%;
  left: 8vw;
  color: white;
}

.hero-overlay h1 {
  font-family: 'Cinzel', serif;
  font-size: clamp(2rem, 4vw, 3.5rem);
  letter-spacing: 0.4rem;
}

.hero-overlay p {
  margin-top: 0.5rem;
  font-size: 0.9rem;
  letter-spacing: 0.15rem;
  opacity: 0.85;
}


/* =========================
PROJECT LAYOUT
========================= */

.project-layout {
  display: flex;
  gap: 5rem;
  padding: 4rem 6vw;
  align-items: flex-start;
}

.project-index {
  width: 200px;
  position: sticky;
  top: 120px;
  flex-shrink: 0;
}

.project-index h3 {
  margin-bottom: 2.5rem;
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.2rem;
  text-transform: uppercase;
  opacity: 0.4;
}

.project-index ul {
  list-style: none;
  padding: 0;
}

.project-index li {
  margin-bottom: 1.2rem;
  cursor: pointer;
  opacity: 0.45;
  font-size: 0.9rem;
  transition: opacity 0.25s ease;
}

.project-index li:hover {
  opacity: 0.75;
}

.project-index li.active {
  opacity: 1;
  font-weight: 600;
}

.project-content {
  flex: 1;
  min-width: 0;
  padding-top: 1rem;
}

.content-section {
  display: none;
}

.content-section.active {
  display: block;
}


/* =========================
SHARED SECTION ELEMENTS
========================= */

.content-section h2:not(.concept-title) {
  font-family: 'Work Sans', sans-serif;
  font-size: clamp(1.2rem, 2vw, 1.8rem);
  font-weight: 400;
  letter-spacing: 0.05rem;
  margin-bottom: 1.5rem;
}

.section-intro {
  font-size: 0.95rem;
  line-height: 1.8;
  opacity: 0.7;
}

.section-img {
  width: 100%;
  height: auto;
  margin: 2.5rem 0;
  display: block;
}


/* =========================
STATS STRIP
========================= */

.stats-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 1px;
  background: #ccc;
  border: 1px solid #ccc;
  margin: 2.5rem 0;
}

.stat-item {
  background: var(--base-bg);
  padding: 1.2rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.stat-label {
  font-size: 0.7rem;
  letter-spacing: 0.1rem;
  text-transform: uppercase;
  opacity: 0.4;
}

.stat-value {
  font-size: 1rem;
  font-weight: 500;
}


/* =========================
SITE ANALYSIS
========================= */

.analysis-layout {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
}

.analysis-viewer-row {
  display: flex;
  gap: 2.5rem;
  align-items: flex-start;
  margin-top: 1rem;
}

.analysis-viewer {
  width: 60%;
  flex-shrink: 0;
  height: 60vh;
  border: 1px solid #ddd;
  position: relative;
  overflow: hidden;
  background: #f5f4f0;
}

.analysis-side {
  flex: 1;
  padding-top: 0.5rem;
}

/* Layer control buttons — sits above viewer */
#controls {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.ctrl-btn {
  padding: 0.5rem 1.2rem;
  background: transparent;
  border: 1px solid #bbb;
  font-family: 'Work Sans', sans-serif;
  font-size: 0.8rem;
  letter-spacing: 0.06rem;
  cursor: pointer;
  color: #555;
  transition: all 0.25s ease;
}

.ctrl-btn:hover {
  border-color: #333;
  color: #111;
}

.ctrl-btn.active {
  background: #111;
  color: #e0dfda;
  border-color: #111;
}

/* SVG viewer box */

#viewer {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

#viewer svg {
  width: 100%;
  height: 100%;
  cursor: grab;
  user-select: none;
}

#viewer svg:active {
  cursor: grabbing;
}

/* Analysis text below viewer */
.analysis-text {
  margin-top: 2.5rem;
  max-width: 900px;
}

.analysis-panel p {
  font-size: 0.9rem;
  line-height: 1.75;
  opacity: 0.7;
  margin-bottom: 1.5rem;
}

.analysis-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.analysis-card {
  border-bottom: 1px solid #ddd;
  padding-bottom: 0.8rem;
}

.analysis-card span {
  font-size: 0.75rem;
  letter-spacing: 0.08rem;
  text-transform: uppercase;
  opacity: 0.45;
  display: block;
  margin-bottom: 0.3rem;
}

.analysis-card strong {
  font-size: 1rem;
  font-weight: 500;
}


/* =========================
CONCEPT OPENER
========================= */

.concept-opener {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 4rem 0;
  border-bottom: 1px solid #ccc;
}

.concept-name-block {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  border-bottom: 1px solid #ccc;
  margin-bottom: 5rem;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
  padding: 4rem 0;
}

.concept-name-block.visible {
  opacity: 1;
  transform: translateY(0);
}

.concept-poles {
  display: flex;
  align-items: center;
  width: 100%;
  margin-bottom: 3rem;
}

.pole-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.pole-img {
  width: 20vw;
  object-fit: cover;
  transition: filter 0.3s ease;
}

.pole-label {
  font-family: 'Cinzel', serif;
  font-size: 1rem;
  letter-spacing: 0.3rem;
  opacity: 0.5;
}

.concept-arc-wrap {
  flex: 1;
  min-width: 0;
  width: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.arc-svg {
  width: 100%;
  height: 250px;
  display: block;
}

.arc-line {
  stroke-dasharray: 1500;
  stroke-dashoffset: 1500;
  animation: drawArc 3s ease forwards 0.3s;
}

@keyframes drawArc {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

.arc-midlabel {
  position: absolute;
  top: -50px;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  opacity: 0;
  animation: fadeIn 0.4s ease forwards 2.4s;
}

.arc-midlabel span {
  font-family: 'Cinzel', serif;
  font-size: 1.6rem;
  letter-spacing: 0.6rem;
  display: block;
}

.arc-midlabel small {
  font-size: 1rem;
  opacity: 0.6;
  letter-spacing: 0.5rem;
}

.concept-statement {
  text-align: center;
  opacity: 0;
  animation: fadeIn 0.5s ease forwards 2.8s;
}

.concept-statement p {
  font-family: 'Fraunces', serif;
  font-style: italic;
  font-size: clamp(1rem, 1.5vw, 1rem);
  line-height: 1.9;
  opacity: 0.65;
}

.thread-end {
  filter: drop-shadow(0 0 6px white) drop-shadow(0 0 12px white);
}

@keyframes glowPulse {

  0%,
  100% {
    opacity: 0.6;
    r: 4;
  }

  50% {
    opacity: 1;
    r: 6;
  }
}

/* =========================
CONCEPT NAME BLOCK
========================= */

.concept-name-block {
  padding: 5rem 0;
  text-align: center;
  border-bottom: 1px solid #ccc;
  margin-bottom: 5rem;
}

.concept-title {
  font-family: 'Cinzel', serif;
  font-size: clamp(3.5rem, 6vw, 5rem);
  letter-spacing: 0.8rem;
  font-weight: 700;
}

.concept-subtitle {
  display: block;
  font-size: 1.5rem;
  letter-spacing: 0.75rem;
  opacity: 0.40;
  margin-top: 0.8rem;
}

.concept-divider {
  width: 3rem;
  border-top: 2px solid #555;
  margin: 2.5rem auto;
}

.concept-tagline {
  font-family: 'Fraunces', serif;
  font-style: italic;
  font-size: clamp(1rem, 1vw, 1.5rem);
  line-height: 1.9;
  opacity: 0.6;
  max-width: 35vw;
}


/* =========================
CONCEPT BEATS
========================= */

.concept-beats {
  margin-bottom: 6rem;
}

.concept-beat {
  display: grid;
  grid-template-columns: 22.5vw 1fr;
  gap: 3rem;
  align-items: center;
  padding: 3rem 0;
  border-bottom: 1px solid #e0e0db;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.concept-beat.visible {
  opacity: 1;
  transform: translateY(0);
}

.beat-img {
  width: 20vw;
  height: auto;
  padding: 0 2.5vw;
  object-fit: cover;
  display: block;
  transition: filter 0.4s ease;
}

.beat-number {
  font-size: 0.65rem;
  letter-spacing: 0.2rem;
  opacity: 0.3;
  display: block;
  margin-bottom: 0.5rem;
}

.beat-text h4 {
  font-family: 'Cinzel', serif;
  font-size: 0.95rem;
  letter-spacing: 0.12rem;
  margin-bottom: 0.75rem;
}

.beat-text p {
  font-size: 0.88rem;
  line-height: 1.75;
  opacity: 0.65;
  max-width: 45vw;
}

.section-divider {
  border: none;
  border-top: 1px solid #ccc;
  margin: 5rem 0;
}

.concept-img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  display: block;
  mix-blend-mode: normal;
}


.glow-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  background: red;
  pointer-events: none;
  mix-blend-mode: normal;
}


/* =========================
RESPONSIVE
========================= */

@media (max-width: 768px) {

  .concept-beat {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .beat-diagram {
    padding: 0;
  }

  .beat-img {
    width: 100%;
    height: 50vw;
  }

  .beat-text p {
    max-width: 100%;
  }

}


/* =========================
CONCEPT SPLIT
========================= */

.concept-split-section {
  margin-bottom: 6rem;
  padding-top: 2rem;
}

.concept-split-heading {
  font-family: 'Work Sans', sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.3rem;
  text-transform: uppercase;
  opacity: 0.35;
  margin-bottom: 4rem;
}

.concept-split-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.concept-split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10rem;
  margin-bottom: 5rem;
  max-width: 60vw;
  margin-left: auto;
  margin-right: auto;
}


.split-label {
  font-family: 'Cinzel', serif;
  font-size: clamp(1rem, 2vw, 1.4rem);
  letter-spacing: 0.5rem;
  opacity: 0.5;
  text-align: center;
}

.split-desc {
  font-size: 0.85rem;
  line-height: 1.8;
  opacity: 0.55;
  text-align: center;
  max-width: 28vw;
}

.concept-manifesto {
  border-top: 1px solid #ccc;
  padding-top: 4rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.concept-manifesto p {
  font-family: 'Fraunces', serif;
  font-style: italic;
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  line-height: 1.9;
  opacity: 0.65;
  max-width: 70%;
  transition: none;
}

.concept-manifesto p:hover {
  opacity: 0.65;
}

.manifesto-final {
  font-family: 'Cinzel', serif !important;
  font-style: normal !important;
  font-size: clamp(1.2rem, 2vw, 1.6rem) !important;
  letter-spacing: 0.3rem;
  opacity: 1 !important;
  margin-top: 1.5rem;
}

.section-divider {
  border: none;
  border-top: 1px solid #ccc;
  margin: 5rem 0;
}

@media (max-width: 768px) {
  .concept-split-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .split-desc {
    max-width: 100%;
  }
}


/* =========================
SVG CONCEPT INTERACTIONS
========================= */

.split-canvas {
  width: 100%;
  aspect-ratio: 1 / 1;
  position: relative;
  cursor: pointer;
}

.split-canvas svg {
  width: 100%;
  height: 100%;
  overflow: visible;
  display: block;
}

/* clickability ring pulse — signals interactivity */
.split-canvas::after {
  content: '';
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  border: 1px solid rgba(80, 80, 80, 0.25);
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.35s ease, transform 0.35s ease;
  pointer-events: none;
}

.split-canvas:hover::after {
  opacity: 1;
  transform: scale(1);
}

/* eye eyelid pulse */
@keyframes eyelidPulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.4;
  }
}

/* circuit root shimmer */
@keyframes rootShimmer {

  0%,
  100% {
    filter: none;
  }

  50% {
    filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.5)) drop-shadow(0 0 18px rgba(255, 255, 255, 0.2));
  }
}

/* circuit heartbeat glow */
@keyframes circuitHeartbeat {
  0% {
    filter: none;
    opacity: 0.75;
  }

  14% {
    filter: drop-shadow(0 0 14px rgba(255, 255, 255, 1)) drop-shadow(0 0 32px rgba(255, 255, 255, 0.7)) drop-shadow(0 0 60px rgba(200, 240, 240, 0.5));
    opacity: 1;
  }

  28% {
    filter: none;
    opacity: 0.75;
  }

  42% {
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.8)) drop-shadow(0 0 22px rgba(255, 255, 255, 0.5));
    opacity: 0.95;
  }

  100% {
    filter: none;
    opacity: 0.75;
  }
}

/* fix manifesto hover opacity */
.concept-manifesto p {
  opacity: 0.65;
  transition: none;
}

.concept-manifesto p:hover {
  opacity: 0.65;
}

/* =========================
FORM DEVELOPMENT
========================= */

.fd-part {
  margin-bottom: 2rem;
}

.fd-part-header {
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.fd-part-number {
  font-family: 'Cinzel', serif;
  font-size: 2.5rem;
  font-weight: 700;
  opacity: 0.12;
  line-height: 1;
}

.fd-part-title {
  font-family: 'Work Sans', sans-serif;
  font-size: clamp(1rem, 1.8vw, 1.4rem);
  font-weight: 400;
  letter-spacing: 0.05rem;
}

.fd-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.fd-img-wrap {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

.fd-img-caption {
  font-size: 0.82rem;
  line-height: 1.7;
  opacity: 0.55;
}

.fd-script-link {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.1rem;
  text-transform: uppercase;
  color: #111;
  text-decoration: none;
  border-bottom: 1px solid #999;
  padding-bottom: 2px;
  opacity: 0.5;
  transition: opacity 0.2s ease;
  width: fit-content;
}

.fd-script-link:hover {
  opacity: 1;
}

.fd-vars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: #ccc;
  border: 1px solid #ccc;
  margin-bottom: 2.5rem;
}

.fd-var {
  background: var(--base-bg);
  padding: 1.2rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.fd-var-label {
  font-size: 0.7rem;
  letter-spacing: 0.1rem;
  text-transform: uppercase;
  opacity: 0.4;
}

.fd-var-value {
  font-size: 0.9rem;
  font-weight: 500;
}

.fd-var-note {
  font-size: 0.72rem;
  line-height: 1.6;
  opacity: 0.45;
  margin-top: 0.4rem;
  display: block;
}

.fd-tag {
  display: inline-block;
  font-size: 0.65rem;
  letter-spacing: 0.2rem;
  text-transform: uppercase;
  padding: 0.3rem 0.8rem;
  margin-bottom: 1rem;
}

.fd-tag--problem {
  background: #f4efed;
  color: #7a3a3a;
}

.fd-tag--solution {
  background: #eff3ef;
  color: #2a5a3a;
}

.fd-problem-col {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-bottom: 2rem;
}

.fd-problem-title {
  font-family: 'Cinzel', serif;
  font-size: 0.95rem;
  letter-spacing: 0.1rem;
}

.fd-problem-text {
  font-size: 0.87rem;
  line-height: 1.75;
  opacity: 0.62;
}

.fd-solution-header {
  padding: 2rem 0 1rem;
  border-top: 1px solid #e0e0db;
  margin-bottom: 2rem;
}

.fd-premise {
  margin-bottom: 2rem;
}

.fd-premise-grid {
  display: grid;
  grid-template-columns: 3fr 3fr 5fr;
  gap: 2rem;
  align-items: stretch;
}

.fd-premise-col {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: space-between;
  border-right: 1px solid #ccc;
  padding-right: 2rem;
}

.fd-premise-col:last-child {
  border-right: none;
  padding-right: 0;
}

.fd-premise-img {
  width: 100%;
  height: auto;
  display: block;
}

.fd-premise-text {
  font-size: 0.85rem;
  line-height: 1.75;
  opacity: 0.62;
  min-height: 4rem;
}

@media (max-width: 900px) {

  .fd-two-col,
  .fd-premise-grid {
    grid-template-columns: 1fr;
  }
}

/* =========================
SPATIAL PLANNING
========================= */

.sp-subheading {
  font-size: 0.75rem;
  letter-spacing: 0.2rem;
  text-transform: uppercase;
  opacity: 0.4;
  margin-bottom: 2rem;
  margin-top: -1rem;
}

.sp-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.sp-legend-btn {
  padding: 0.4rem 1rem;
  background: transparent;
  border: 1px solid #bbb;
  font-family: 'Work Sans', sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.05rem;
  cursor: pointer;
  color: #555;
  transition: all 0.2s ease;
}

.sp-legend-btn:hover,
.sp-legend-btn.active {
  background: #111;
  color: #e0dfda;
  border-color: #111;
}

.sp-viewer-wrap {
  width: 60%;
  height: 60vh;
  border: 1px solid #ddd;
  background: var(--base-bg);
  overflow: hidden;
  position: relative;
  cursor: grab;
  user-select: none;
}

.sp-viewer-row {
  display: flex;
  gap: 2.5rem;
  align-items: flex-start;
  margin-top: 1rem;
}

.sp-info-side {
  flex: 1;
  padding-top: 0.5rem;
}

.sp-viewer-wrap:active {
  cursor: grabbing;
}

.sp-viewer {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sp-viewer svg {
  width: 100%;
  height: 100%;
}

/* Info box */
.sp-infobox {
  display: none;
  position: relative;
  margin-top: 1.5rem;
  padding: 1.5rem 2rem;
  border-left: 2px solid #111;
  background: #ebebE6;
}

.sp-infobox.visible {
  display: block;
}

.sp-infobox-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.85rem;
  opacity: 0.4;
  transition: opacity 0.2s ease;
}

.sp-infobox-close:hover {
  opacity: 1;
}

.sp-infobox-title {
  display: block;
  font-family: 'Cinzel', serif;
  font-size: 0.8rem;
  letter-spacing: 0.2rem;
  margin-bottom: 0.75rem;
  text-transform: uppercase;
}

.sp-infobox-text {
  font-size: 0.88rem;
  line-height: 1.8;
  opacity: 0.7;
  max-width: 70ch;
}

/* =========================
SITE COMPONENTS — SLIDESHOW
========================= */

.sc-slideshow {
  margin-top: 1rem;
}

.sc-image-wrap {
  position: relative;
  border: 1px solid #ddd;
  overflow: hidden;
  aspect-ratio: 2 / 1;
  background: #f5f4f0;
}

.sc-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.sc-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  border: none;
  background: rgba(17, 17, 17, 0.7);
  color: #e0dfda;
  font-size: 1.3rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}

.sc-arrow:hover {
  background: #111;
}

.sc-arrow-left {
  left: 1rem;
}

.sc-arrow-right {
  right: 1rem;
}

.sc-counter {
  position: absolute;
  top: 1rem;
  right: 1.2rem;
  font-size: 0.7rem;
  letter-spacing: 0.1rem;
  color: #e0dfda;
  background: rgba(17, 17, 17, 0.55);
  padding: 0.3rem 0.7rem;
}

.sc-overlay-text {
  position: absolute;
  left: 0;
  bottom: 0;
  max-width: 55%;
  padding: 1.5rem 2rem;
  background: rgba(17, 17, 17, 0.55);
  backdrop-filter: blur(2px);
  text-align: left;
}

.sc-title {
  font-family: 'Cinzel', serif;
  font-size: clamp(0.85rem, 1.1vw, 1.05rem);
  letter-spacing: 0.08rem;
  color: #e0dfda;
  margin-bottom: 0.6rem;
}

.sc-desc {
  font-size: 0.78rem;
  line-height: 1.7;
  color: #e0dfda;
  opacity: 0.8;
}

@media (max-width: 768px) {
  .sc-overlay-text {
    max-width: 100%;
  }
}

/* =========================
FLOOR PLATE STRATEGY
========================= */

.fp-block-title {
  font-family: 'Cinzel', serif;
  font-size: 0.85rem;
  letter-spacing: 0.15rem;
  text-transform: uppercase;
  opacity: 0.6;
  margin-bottom: 1rem;
}

.fp-layout {
  display: flex;
  gap: 2.5rem;
  align-items: stretch;
  margin-top: 1rem;
}

.fp-main {
  width: 60%;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
}

.fp-plan-wrap {
  position: relative;
  border: 1px solid #ddd;
  overflow: hidden;
  flex: 1;
}

.fp-plan-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.fp-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  border: none;
  background: rgba(17, 17, 17, 0.7);
  color: #e0dfda;
  font-size: 1.3rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}

.fp-arrow:hover {
  background: #111;
}

.fp-arrow-left {
  left: 1rem;
}

.fp-arrow-right {
  right: 1rem;
}

.fp-side {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 0;
}

.fp-legend-list,
.fp-highlights-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem 1.5rem;
  font-size: 0.85rem;
  opacity: 0.75;
}

@media (max-width: 768px) {

  .fp-legend-list,
  .fp-highlights-list {
    grid-template-columns: 1fr;
  }
}

.fp-legend-list li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.fp-swatch {
  width: 0.9rem;
  height: 0.9rem;
  display: inline-block;
  flex-shrink: 0;
}

.fp-highlights-list li {
  line-height: 1.6;
  position: relative;
  padding-left: 1rem;
}

.fp-highlights-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  opacity: 0.5;
}

.fp-core-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.82rem;
  opacity: 0.75;
}

.fp-core-icon {
  width: 1.8rem;
  height: 1.8rem;
  object-fit: contain;
  flex-shrink: 0;
}

/* Core Functions — now inside sidebar */
.fp-core-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem 1.5rem;
}

.fp-core-item {
  font-size: 0.78rem;
}

.fp-core-icon {
  width: 1.5rem;
  height: 1.5rem;
}

/* Bottom two-column grid — Section+Text | Exploded Diagram */
.fp-bottom-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  margin-top: 3rem;
  align-items: stretch;
}

.fp-bottom-left {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.fp-section-img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid #ddd;
}

.fp-bottom-text {
  font-size: 0.88rem;
  line-height: 1.8;
  opacity: 0.65;
}

.fp-bottom-right {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.fp-exploded-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  border: 1px solid #ddd;
}

@media (max-width: 900px) {
  .fp-bottom-grid {
    grid-template-columns: 1fr;
  }

  .fp-bottom-right {
    margin-top: 1.5rem;
  }
}

@media (max-width: 900px) {
  .fp-layout {
    flex-direction: column;
  }

  .fp-main {
    width: 100%;
  }

  .fp-details-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* =========================
SYSTEM INTEGRATION
========================= */

/* Before/After Slider */
.si-slider-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  cursor: default;
  user-select: none;
  margin-bottom: 3rem;
  border: 1px solid #ddd;
}

.si-slider-after,
.si-slider-before {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.si-slider-after img,
.si-slider-before img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
}

.si-slider-before {
  clip-path: inset(0 33.34% 0 0);
}

.si-slider-label {
  position: absolute;
  top: 1rem;
  font-size: 0.7rem;
  letter-spacing: 0.15rem;
  padding: 0.3rem 0.8rem;
  background: rgba(17, 17, 17, 0.6);
  color: #e0dfda;
  z-index: 5;
}

.si-label-left {
  left: 1rem;
}

.si-label-right {
  right: 1rem;
}

.si-slider-handle {
  position: absolute;
  top: 0;
  left: 66.66%;
  transform: translateX(-50%);
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  pointer-events: auto;
  cursor: ew-resize;
  z-index: 10;
}

.si-handle-line {
  flex: 1;
  width: 2px;
  background: #e0dfda;
}

.si-handle-btn {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  background: #e0dfda;
  color: #111;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.si-compare-heading {
  font-family: 'Work Sans', sans-serif;
  font-size: clamp(1rem, 1.8vw, 1.4rem);
  font-weight: 400;
  letter-spacing: 0.05rem;
  margin-bottom: 1rem;
}

.si-compare-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  align-items: start;
}

.si-compare-img-wrap {
  position: relative;
  border: 1px solid #ddd;
  overflow: hidden;
}

.si-compare-img {
  width: 100%;
  height: auto;
  display: block;
}

.si-compare-caption {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.1rem;
  text-transform: uppercase;
  opacity: 0.45;
  margin-top: 0.75rem;
}

.si-compare-text {
  font-size: 0.9rem;
  line-height: 1.8;
  opacity: 0.7;
}

.si-text-label {
  font-size: 0.88rem;
  font-weight: 500;
  line-height: 1.7;
  opacity: 0.85;
  margin-bottom: 1rem;
}

.si-text-body {
  font-size: 0.88rem;
  line-height: 1.8;
  opacity: 0.65;
  margin-bottom: 1rem;
}

.si-text-bullets {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.si-text-bullets li {
  font-size: 0.82rem;
  line-height: 1.6;
  opacity: 0.65;
  padding-left: 1rem;
  position: relative;
}

.si-text-bullets li::before {
  content: '—';
  position: absolute;
  left: 0;
  opacity: 0.5;
}

@media (max-width: 900px) {
  .si-compare-layout {
    grid-template-columns: 1fr;
  }
}

/* Vertical Program — pop-out treatment */

.vp-feature-img {
  width: 100%;
  height: auto;
  display: block;
}

/* Full-length slider — structural + MEP */
.si-full-slide-wrap {
  position: relative;
  border: 1px solid #ddd;
  overflow: hidden;
}

.si-full-slide-wrap img {
  width: 100%;
  height: auto;
  display: block;
}

.si-hint {
  font-size: 0.78rem;
  letter-spacing: 0.05rem;
  opacity: 0.55;
  margin-bottom: 1rem;
}

/* =========================
CAMERA LOCATOR
========================= */

.cam-locator {
  width: 100%;
  max-width: 80%;
  margin: 0 auto;
  border: 1px solid #ddd;
}

.cam-locator-img {
  width: 100%;
  height: auto;
  display: block;
}


/* =========================
PANORAMA VIEWER (Pannellum)
========================= */

.pano-shell {
  position: relative;
  width: 100%;
  height: 75vh;
  min-height: 450px;
  overflow: hidden;
  background: #0b1017;
  border: 1px solid #ddd;
  font-family: 'Work Sans', sans-serif;
}

.pano-shell #panorama {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.pano-shell button {
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 12px;
  color: #fff;
  background: rgba(15, 23, 34, 0.58);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  cursor: pointer;
  padding: 0;
  font-weight: 500;
  transition: background 160ms ease, transform 160ms ease, border-color 160ms ease;
}

.pano-shell button:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.55);
}

.pano-shell button:active {
  transform: scale(0.96);
}

.pano-hint {
  position: absolute;
  z-index: 5;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 11px 16px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.92);
  background: rgba(11, 17, 26, 0.58);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  font-size: 12px;
  white-space: nowrap;
  pointer-events: none;
  transition: opacity 500ms ease;
}

.pano-hint.hidden {
  opacity: 0;
}

.pano-drag-icon {
  font-size: 18px;
  line-height: 12px;
}

.pano-siteplan {
  position: absolute;
  z-index: 6;
  top: 24px;
  right: 26px;
  width: 288px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: rgba(11, 17, 26, 0.6);
  backdrop-filter: blur(12px);
  overflow: hidden;
}

.pano-siteplan img {
  width: 100%;
  height: auto;
  display: block;
}

.pano-caption {
  position: absolute;
  z-index: 6;
  left: 26px;
  bottom: 84px;
  max-width: 34%;
  padding: 1rem 1.25rem;
  background: rgba(11, 17, 26, 0.6);
  backdrop-filter: blur(12px);
  color: #e0dfda;
  font-size: 0.82rem;
  line-height: 1.65;
}

.pano-nav {
  position: absolute;
  z-index: 6;
  left: 26px;
  bottom: 26px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.pano-nav button {
  width: 42px;
  height: 42px;
  font-size: 22px;
  line-height: 1;
}

.pano-counter {
  color: rgba(255, 255, 255, 0.85);
  font-size: 12px;
  letter-spacing: 0.1rem;
  padding: 0 0.4rem;
}

.pano-bottom-controls {
  position: absolute;
  z-index: 6;
  right: 26px;
  bottom: 26px;
  display: flex;
  align-items: center;
  gap: 8px;
}

#panoResetBtn {
  padding: 10px 15px;
  font-size: 13px;
}

#panoFullscreenBtn {
  width: 42px;
  height: 42px;
  font-size: 22px;
  line-height: 1;
}

.pano-shell .pnlm-container {
  background: #0b1017 !important;
}

.pano-shell .pnlm-controls,
.pano-shell .pnlm-load-box,
.pano-shell .pnlm-about-msg {
  display: none !important;
}

.pano-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.pano-split .cam-locator {
  max-width: 100%;
}

.pano-split .pano-shell {
  height: 60vh;
  min-height: 400px;
}

.pano-split .pano-siteplan {
  width: 150px;
  top: 14px;
  right: 14px;
}

.pano-split .pano-caption {
  max-width: 60%;
  bottom: 78px;
  font-size: 0.75rem;
  padding: 0.8rem 1rem;
}

.pano-split .pano-hint {
  font-size: 11px;
  padding: 8px 12px;
  bottom: 78px;
}

@media (max-width: 1100px) {
  .pano-split {
    grid-template-columns: 1fr;
  }
}

.pano-shell:fullscreen .pano-siteplan {
  width: 420px;
  top: 28px;
  right: 28px;
}

.pano-shell:fullscreen .pano-caption {
  max-width: 40%;
  font-size: 0.95rem;
  padding: 1.2rem 1.5rem;
  bottom: 100px;
}

.pano-shell:fullscreen .pano-nav button,
.pano-shell:fullscreen #panoFullscreenBtn {
  width: 52px;
  height: 52px;
  font-size: 26px;
}


/* =========================
CURATED VIEWS GALLERY
========================= */

.gal-cats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2.5rem;
}

.gal-cat-btn {
  padding: 0.5rem 1.1rem;
  background: transparent;
  border: 1px solid #bbb;
  font-family: 'Work Sans', sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.05rem;
  color: #555;
  cursor: pointer;
  transition: all 0.2s ease;
}

.gal-cat-btn:hover {
  border-color: #333;
  color: #111;
}

.gal-cat-btn.active {
  background: #111;
  color: #e0dfda;
  border-color: #111;
}

.gal-layout {
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 4rem;
  align-items: start;
  position: relative;
}

.gal-layout::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(75% + 0.5rem);
  width: 1px;
  background: #ccc;
}

.gal-hero-wrap {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: var(--base-bg);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.18);
}

.gal-hero-img {
  width: 100%;
  height: auto;
  display: block;
  transition: opacity 0.45s ease;
}

.gal-hero-img.fading {
  opacity: 0;
}

.gal-hero-caption {
  font-size: 0.85rem;
  line-height: 1.7;
  opacity: 0.65;
  margin-top: 1.5rem;
  text-align: left;
}

/* Thumbnail column */
.gal-flow {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: 163px;
  margin: 0 auto;
}

.gal-flow-item {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  cursor: pointer;
  overflow: hidden;
  border: 2px solid transparent;
  opacity: 0.4;
  filter: grayscale(70%);
  transition:
    opacity 0.4s ease,
    filter 0.4s ease,
    transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    border-color 0.3s ease;
}

.gal-flow-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.gal-flow-item:hover {
  opacity: 0.75;
  filter: grayscale(25%);
}

.gal-flow-item.active {
  opacity: 1;
  filter: grayscale(0%);
  border-color: #111;
  transform: scale(1.04);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

@media (max-width: 900px) {
  .gal-layout {
    grid-template-columns: 1fr;
  }

  .gal-layout::after {
    display: none;
  }

  .gal-flow {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .gal-flow-item {
    width: calc(33.33% - 0.6rem);
  }
}


/* =========================
CLOSING MOMENT
========================= */

.closing-moment {
  margin-top: 8rem;
}

.closing-frame {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.closing-img {
  width: 100%;
  height: auto;
  display: block;
  transform: scale(1.06);
  transition: transform 2.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.closing-moment.visible .closing-img {
  transform: scale(1);
}

.closing-vignette {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(to bottom, rgba(6,10,16,0.15) 0%, rgba(6,10,16,0.55) 55%, rgba(6,10,16,0.85) 100%);
}

.closing-overlay {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 0 8% 7%;
  text-align: center;
  color: #e0dfda;
}

.closing-eyebrow,
.closing-title,
.closing-rule,
.closing-text,
.closing-sign {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 1.1s ease, transform 1.1s ease;
}

.closing-moment.visible .closing-eyebrow { opacity: 1; transform: translateY(0); transition-delay: 0.5s; }
.closing-moment.visible .closing-title   { opacity: 1; transform: translateY(0); transition-delay: 0.9s; }
.closing-moment.visible .closing-rule    { opacity: 1; transform: translateY(0); transition-delay: 1.3s; }
.closing-moment.visible .closing-text    { opacity: 1; transform: translateY(0); transition-delay: 1.7s; }
.closing-moment.visible .closing-sign    { opacity: 1; transform: translateY(0); transition-delay: 2.2s; }

.closing-eyebrow {
  display: block;
  font-size: 0.65rem;
  letter-spacing: 0.45rem;
  text-transform: uppercase;
  opacity: 0.55;
  margin-bottom: 1.5rem;
}

.closing-title {
  font-family: 'Cinzel', serif !important;
  font-size: clamp(2rem, 4.5vw, 4rem) !important;
  letter-spacing: 0.5rem !important;
  font-weight: 600 !important;
  color: #e0dfda !important;
  margin-bottom: 0 !important;
  text-shadow: 0 4px 30px rgba(0,0,0,0.5);
}

.closing-rule {
  width: 4rem;
  height: 1px;
  background: rgba(224,223,218,0.5);
  margin: 2rem auto;
}

.closing-text {
  font-family: 'Fraunces', serif;
  font-style: italic;
  font-size: clamp(0.95rem, 1.3vw, 1.2rem);
  line-height: 2;
  opacity: 0.8;
  max-width: 38rem;
  margin: 0 auto 2.5rem;
}

.closing-sign {
  font-family: 'Cinzel', serif;
  font-size: 0.75rem;
  letter-spacing: 0.4rem;
  opacity: 0.5;
}


@media (max-width: 768px) {
  .pano-siteplan { width: 150px; top: 14px; right: 14px; }
  .pano-nav { left: 14px; bottom: 14px; }
  .pano-bottom-controls { right: 14px; bottom: 14px; }
  .pano-caption {
    left: 14px;
    right: 14px;
    max-width: 100%;
    bottom: 72px;
    font-size: 0.75rem;
  }
  .pano-hint { bottom: 78px; font-size: 11px; }
  .gal-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
  .closing-overlay { padding: 0 6% 9%; }
  .closing-text { margin-bottom: 1.5rem; }
}

.page-warm-glow {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: 20vh;
  pointer-events: none;
  z-index: 1;
  background: linear-gradient(
    to top,
    rgba(46, 33, 22, 0.28) 0%,
    rgba(46, 33, 22, 0.12) 50%,
    rgba(46, 33, 22, 0) 100%
  );
  opacity: 0;
  transition: opacity 1.4s ease;
}

.page-warm-glow.visible {
  opacity: 1;
}


/* =========================
PHONE (portrait)
Index moves to a bar under the menu, everything else stacks.
Only applies on small screens, desktop stays the same.
========================= */

@media (max-width: 768px) {

  .hero-overlay {
    right: 8vw;
  }

  .hero-overlay h1 {
    letter-spacing: 0.2rem;
  }

  /* index bar */

  .project-layout {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0 6vw 4rem;
  }

  .project-index {
    width: auto;
    top: var(--header-h, 52px);
    z-index: 900;
    margin: 0 -6vw;
    padding: 0 6vw;
    background: var(--base-bg);
    border-bottom: 1px solid #ccc;
  }

  .project-index h3 {
    display: none;
  }

  .project-index ul {
    display: flex;
    gap: 1.4rem;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .project-index ul::-webkit-scrollbar {
    display: none;
  }

  .project-index li {
    margin: 0;
    padding: 0.9rem 0;
    white-space: nowrap;
    font-size: 0.85rem;
    border-bottom: 2px solid transparent;
  }

  .project-index li.active {
    border-bottom-color: #111;
  }

  .project-content {
    width: 100%;
    padding-top: 2.5rem;
    scroll-margin-top: calc(var(--header-h, 52px) + 3rem);
  }

  /* site analysis + spatial planning viewers */

  .analysis-viewer-row,
  .sp-viewer-row {
    flex-direction: column;
    gap: 1.5rem;
  }

  .analysis-viewer,
  .sp-viewer-wrap {
    width: 100%;
    height: 45vh;
  }

  .analysis-text {
    margin-top: 0;
  }

  .analysis-cards {
    grid-template-columns: 1fr;
  }

  /* concept opener */

  .concept-opener,
  .concept-name-block {
    min-height: auto;
  }

  .pole-img {
    width: 22vw;
  }

  .pole-label {
    font-size: 0.65rem;
    letter-spacing: 0.12rem;
  }

  .arc-svg {
    height: 110px;
  }

  .arc-midlabel {
    top: -30px;
  }

  .arc-midlabel span {
    font-size: 0.9rem;
    letter-spacing: 0.3rem;
  }

  .arc-midlabel small {
    font-size: 0.7rem;
    letter-spacing: 0.2rem;
  }

  .concept-title {
    font-size: 2.1rem;
    letter-spacing: 0.25rem;
  }

  .concept-subtitle {
    font-size: 0.95rem;
    letter-spacing: 0.35rem;
  }

  .concept-tagline {
    max-width: 100%;
  }

  .concept-split-grid {
    max-width: 100%;
  }

  .concept-manifesto p {
    max-width: 100%;
  }

  /* form development */

  .fd-vars {
    grid-template-columns: 1fr;
  }

  .fd-premise-col {
    border-right: none;
    padding-right: 0;
  }

  /* site components slideshow: text sits under the image */

  .sc-image-wrap {
    aspect-ratio: auto;
  }

  .sc-img {
    aspect-ratio: 2 / 1;
    height: auto;
  }

  .sc-image-wrap .sc-arrow {
    top: calc(44vw / 2);
  }

  .sc-overlay-text {
    position: static;
    max-width: 100%;
    padding: 1.2rem 1.2rem 1.4rem;
    background: #111;
  }

  /* gallery thumbnails use the full width */

  .gal-flow {
    max-width: 100%;
  }

  /* closing image tall enough to hold its text */

  .closing-moment {
    margin-top: 5rem;
  }

  .closing-img {
    height: 85vh;
    object-fit: cover;
  }

  .closing-title {
    letter-spacing: 0.25rem !important;
  }

}