.scroll-progress {
  position: fixed;
  z-index: 1000;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: left;
  pointer-events: none;
}

/* Homepage hero: slow architectural movement with a staggered content entrance. */
.hero::before {
  content: "";
  position: absolute;
  z-index: 0;
  inset: -3%;
  background: url(../wantai-building.jpg) 50% 50% / cover no-repeat;
  transform-origin: center center;
  animation: hero-building-move 14s cubic-bezier(0.2, 0.65, 0.25, 1) both;
  will-change: transform;
}

.hero-shade {
  z-index: 1;
}

.hero-content .eyebrow,
.hero-content h1,
.hero-copy,
.hero-actions,
.hero-note {
  opacity: 0;
  animation: hero-text-enter 0.9s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.hero-content .eyebrow {
  animation-delay: 0.15s;
}

.hero-content h1 {
  animation-delay: 0.32s;
}

.hero-copy {
  animation-delay: 0.52s;
}

.hero-actions {
  animation-delay: 0.7s;
}

.hero-note {
  animation-name: hero-note-enter;
  animation-delay: 0.9s;
}

@keyframes hero-building-move {
  from {
    transform: scale(1.1) translate3d(-0.7%, 0.5%, 0);
  }
  to {
    transform: scale(1.025) translate3d(0.7%, -0.3%, 0);
  }
}

@keyframes hero-text-enter {
  from {
    opacity: 0;
    transform: translate3d(0, 28px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

@keyframes hero-note-enter {
  from {
    opacity: 0;
    transform: translate3d(18px, 0, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

.site-header {
  transition:
    height 0.35s,
    background 0.35s,
    color 0.35s,
    box-shadow 0.35s;
}
.site-header--inner.is-scrolled {
  position: sticky;
  top: 0;
  height: 76px;
  background: #fbfaf7f2;
  box-shadow: 0 10px 34px #1112;
  backdrop-filter: blur(14px);
}
.site-header--overlay.is-scrolled {
  position: fixed;
  top: 0;
  height: 76px;
  color: var(--ink);
  background: #fbfaf7f2;
  border-color: var(--line);
  box-shadow: 0 10px 34px #1112;
  backdrop-filter: blur(14px);
}
.button,
.header-cta {
  transition:
    transform 0.3s,
    box-shadow 0.3s;
}
.button:hover,
.header-cta:hover {
  transform: translateY(-2px);
}
.button:hover {
  box-shadow: 0 14px 34px #0003;
}
.button svg,
.header-cta svg,
.showroom-cards svg {
  transition: transform 0.3s;
}
.button:hover svg,
.header-cta:hover svg,
.showroom-cards a:hover svg {
  transform: translateX(5px);
}
.reveal-ready {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1) var(--delay, 0ms),
    transform 0.8s cubic-bezier(0.22, 1, 0.36, 1) var(--delay, 0ms);
}
.reveal-ready.is-revealed {
  opacity: 1;
  transform: none;
}
.service-grid article {
  cursor: pointer;
  transition:
    background 0.4s,
    transform 0.4s;
  overflow: hidden;
}
.service-grid article:after {
  content: "Explore";
  position: absolute;
  right: 38px;
  bottom: 28px;
  color: #c7a879;
  font-size: 8px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0;
  transition: 0.3s;
}
.service-grid article:hover,
.service-grid article:focus-visible,
.service-grid article.is-active {
  background: #ffffff0b;
  transform: translateY(-6px);
  outline: none;
}
.service-grid article:hover:after,
.service-grid article:focus-visible:after,
.service-grid article.is-active:after {
  opacity: 1;
}
.project-card {
  cursor: zoom-in;
  transition: transform 0.4s;
}
.project-card:hover,
.project-card:focus-visible {
  transform: translateY(-8px);
  outline: none;
}
.project-controls {
  position: sticky;
  z-index: 12;
  top: 75px;
  display: grid;
  grid-template-columns: 1fr minmax(250px, 340px) auto;
  align-items: end;
  gap: 24px;
  padding: 20px clamp(24px, 8vw, 132px);
  background: #fbfaf7ed;
  border-block: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.filter-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.filter-buttons button {
  cursor: pointer;
  padding: 10px 16px;
  border: 1px solid var(--line);
  font-size: 9px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}
.filter-buttons button:hover,
.filter-buttons button.is-active {
  color: #fff;
  background: var(--ink);
}
.project-search {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 8px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.project-search input {
  padding: 9px 0;
  border-bottom: 1px solid var(--ink);
  font-size: 13px;
  letter-spacing: 0;
  text-transform: none;
  outline: none;
}
.project-result {
  min-width: 90px;
  margin: 0;
  color: var(--muted);
  font-size: 10px;
  text-align: right;
}
.project-card[hidden],
.project-category[hidden] {
  display: none !important;
}
.project-dialog {
  width: min(1080px, 92vw);
  max-height: 90vh;
  margin: auto;
  padding: 0;
  background: var(--paper);
  border: 0;
  box-shadow: 0 30px 100px #0008;
  overflow: hidden;
}
.project-dialog::backdrop {
  background: #0b0d0bcc;
  backdrop-filter: blur(8px);
}
.project-dialog[open] {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
}
.dialog-media {
  min-height: 520px;
  background: #ddd;
}
.dialog-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.dialog-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 54px;
}
.dialog-copy span {
  color: var(--blue);
  font-size: 9px;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}
.dialog-copy h2 {
  margin: 18px 0 24px;
  font-size: clamp(35px, 4vw, 58px);
}
.dialog-copy p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}
.dialog-close {
  position: absolute;
  z-index: 2;
  top: 14px;
  right: 16px;
  width: 42px;
  height: 42px;
  cursor: pointer;
  background: #fffffff0;
  border-radius: 50%;
  font-size: 28px;
}
.quick-enquiry {
  display: grid;
  grid-template-columns: 0.75fr 1fr;
  gap: clamp(60px, 10vw, 150px);
  background: var(--cream);
}
.quick-enquiry > div > p:last-child {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}
.quick-enquiry form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px 24px;
}
.quick-enquiry label {
  display: grid;
  gap: 9px;
  color: var(--blue);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.quick-enquiry input,
.quick-enquiry select,
.quick-enquiry textarea {
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  letter-spacing: 0;
  text-transform: none;
  outline: none;
}
.quick-enquiry textarea {
  border: 1px solid var(--line);
  padding: 16px;
}
.quick-enquiry .wide {
  grid-column: 1/-1;
}
.quick-enquiry button {
  cursor: pointer;
  justify-self: start;
}
.back-to-top {
  position: fixed;
  z-index: 30;
  right: 24px;
  bottom: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  cursor: pointer;
  color: #fff;
  background: #151715e8;
  opacity: 0;
  transform: translateY(18px);
  pointer-events: none;
  transition: 0.3s;
}
.back-to-top.is-visible {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}
.back-to-top small {
  font-size: 8px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.brand-logo-grid > div {
  transition:
    transform 0.35s,
    background 0.35s,
    box-shadow 0.35s;
}
.brand-logo-grid > div:hover {
  transform: translateY(-5px);
  background: #fff;
  box-shadow: 0 16px 35px #1b1d1b12;
}
@media (max-width: 900px) {
  .mobile-menu {
    position: static;
    z-index: 50;
  }
  .mobile-menu-toggle {
    position: relative;
    z-index: 52;
    display: flex;
    width: 44px;
    height: 44px;
    padding: 0;
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 7px;
    color: inherit;
    background: transparent;
  }
  .mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 1px;
    background: currentColor;
    transition:
      transform 0.3s,
      opacity 0.3s;
  }
  .mobile-menu.is-open .mobile-menu-toggle span:first-child {
    transform: translateY(4px) rotate(45deg);
  }
  .mobile-menu.is-open .mobile-menu-toggle span:last-child {
    transform: translateY(-4px) rotate(-45deg);
  }
  .mobile-menu nav {
    z-index: 51;
    max-height: calc(100svh - 82px);
    overflow-y: auto;
    box-shadow: 0 20px 40px #0003;
  }
  .site-header.is-scrolled .mobile-menu nav {
    top: 76px;
  }
  .mobile-menu nav[hidden] {
    display: none !important;
  }
  .project-controls {
    top: 64px;
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 15px 20px;
  }
  .project-result {
    text-align: left;
  }
  .filter-buttons {
    flex-wrap: nowrap;
    overflow-x: auto;
  }
  .filter-buttons button {
    flex: 0 0 auto;
  }
  .project-dialog[open] {
    display: block;
    overflow: auto;
  }
  .dialog-media {
    min-height: 0;
    aspect-ratio: 1.2;
  }
  .dialog-copy {
    padding: 32px;
  }
  .quick-enquiry {
    grid-template-columns: 1fr;
  }
  .quick-enquiry form {
    grid-template-columns: 1fr;
  }
  .quick-enquiry .wide {
    grid-column: auto;
  }
  .menu-open {
    overflow: hidden;
  }
}
@media (max-width: 560px) {
  .back-to-top {
    right: 14px;
    bottom: 14px;
  }
  .project-dialog {
    width: 94vw;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *:before,
  *:after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal-ready {
    opacity: 1;
    transform: none;
  }
}