/* ===================== ERA HOMES ===================== */
:root{
  --bg:#f5f2ec;
  --ink:#1c1b18;
  --muted:#8c867a;
  --line:#ddd7cb;
  --serif:'Instrument Serif', Georgia, 'Times New Roman', serif;
  --sans:'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --pad: clamp(1.25rem, 5vw, 5rem);
  --maxw: 1500px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-weight:300;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}

.eyebrow{
  font-family:var(--sans);
  font-size:.72rem;
  font-weight:500;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--muted);
}
.eyebrow--light{color:#fff;font-weight:500;font-size:.8rem;text-shadow:0 1px 14px rgba(0,0,0,.6)}

/* ===================== NAV ===================== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  transition:background .4s ease, border-color .4s ease;
  border-bottom:1px solid transparent;
}
.nav__inner{
  max-width:var(--maxw);margin:0 auto;
  padding:.85rem var(--pad);
  display:flex;align-items:center;justify-content:space-between;
}
.nav__logo{display:block;position:relative;height:120px}
.nav__logo-img{height:120px;width:auto;transition:opacity .4s ease}
.nav__logo-img--w{filter:drop-shadow(0 1px 6px rgba(0,0,0,.45))}
.nav.scrolled .nav__logo-img--b{filter:none}
.nav__logo-img--b{position:absolute;inset:0;opacity:0}
.nav__menu{display:flex;gap:2.6rem}
.nav__menu a{
  font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;
  color:#fff;font-weight:400;position:relative;padding-bottom:2px;transition:color .4s ease;
}
.nav__menu a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:1px;
  background:currentColor;transition:width .3s ease;
}
.nav__menu a:hover::after{width:100%}

/* scrolled state (and always-solid for light pages) */
.nav.scrolled,.nav--solid{background:var(--bg);border-bottom-color:var(--line)}
.nav.scrolled .nav__logo-img--w,.nav--solid .nav__logo-img--w{opacity:0}
.nav.scrolled .nav__logo-img--b,.nav--solid .nav__logo-img--b{opacity:1}
.nav.scrolled .nav__menu a,.nav--solid .nav__menu a{color:var(--ink)}
.nav--solid .nav__toggle span{background:var(--ink)}
.nav__menu a[aria-current="page"]{color:var(--muted)!important}

/* mobile toggle */
.nav__toggle{
  display:none;background:none;border:none;cursor:pointer;
  width:34px;height:24px;position:relative;
}
.nav__toggle span{
  position:absolute;left:0;width:100%;height:1.5px;background:#fff;transition:.3s ease;
}
.nav__toggle span:nth-child(1){top:6px}
.nav__toggle span:nth-child(2){bottom:6px}
.nav.scrolled .nav__toggle span{background:var(--ink)}
.nav__toggle.open span{background:var(--ink)}
.nav__toggle.open span:nth-child(1){top:11px;transform:rotate(45deg)}
.nav__toggle.open span:nth-child(2){bottom:11px;transform:rotate(-45deg)}

/* mobile menu */
.mobile-menu{
  position:fixed;inset:0;z-index:40;background:var(--bg);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transition:opacity .4s ease,visibility .4s ease;
}
.mobile-menu.open{opacity:1;visibility:visible}
.mobile-menu nav{display:flex;flex-direction:column;gap:2rem;text-align:center}
.mobile-menu a{font-family:var(--serif);font-size:2.4rem;line-height:1}

/* ===================== SLIDESHOW (Project 01 — Laplace-style) ===================== */
.slideshow{position:relative;height:100svh;min-height:560px;overflow:hidden;background:#15140f}
.slideshow__track{position:absolute;inset:0}
.slideshow__slide{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  opacity:0;transition:opacity .9s ease;will-change:opacity;
}
.slideshow__slide.is-active{opacity:1}
.slideshow__scrim{
  position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(to bottom, rgba(0,0,0,.45) 0%, rgba(0,0,0,0) 24%),
    linear-gradient(to top, rgba(0,0,0,.55) 0%, rgba(0,0,0,0) 46%);
}
.slideshow__arrow{
  position:absolute;top:50%;transform:translateY(-50%);z-index:5;
  background:none;border:none;color:#fff;cursor:pointer;
  font-size:clamp(2.4rem,4vw,3.4rem);line-height:1;
  padding:1.4rem 1rem;opacity:.8;transition:opacity .3s ease;
  text-shadow:0 1px 10px rgba(0,0,0,.4);user-select:none;
}
.slideshow__arrow:hover{opacity:1}
.slideshow__arrow--prev{left:.4rem}
.slideshow__arrow--next{right:.4rem}
.slideshow__caption{
  position:absolute;left:0;right:0;bottom:clamp(4.5rem,12vh,9rem);
  padding:0 var(--pad);max-width:var(--maxw);margin:0 auto;color:#fff;z-index:4;
}
.slideshow__title{
  font-family:var(--serif);font-weight:400;
  font-size:clamp(3.4rem,11vw,9rem);line-height:.95;margin:.3rem 0 .4rem;
  letter-spacing:-.01em;
}
.slideshow__counter{
  position:absolute;right:var(--pad);bottom:clamp(4.7rem,12vh,9.2rem);z-index:4;
  color:rgba(255,255,255,.9);font-size:.85rem;letter-spacing:.18em;font-variant-numeric:tabular-nums;
}
/* caption fades out while the film plays (the film has its own titles) */
.slideshow__caption{transition:opacity .6s ease}
.slideshow.on-video .slideshow__caption{opacity:0;pointer-events:none}
/* unmute toggle — only visible on the film slide */
.slideshow__sound{
  position:absolute;left:var(--pad);bottom:clamp(4.5rem,12vh,9rem);z-index:5;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.5);
  color:#fff;font-family:var(--sans);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;
  padding:.8rem 1.5rem;border-radius:40px;cursor:pointer;backdrop-filter:blur(6px);
  opacity:0;pointer-events:none;transition:opacity .5s ease,background .3s ease;
}
.slideshow__sound:hover{background:rgba(255,255,255,.25)}
.slideshow.on-video .slideshow__sound{opacity:1;pointer-events:auto}
.slideshow__sound-off{display:none}
.slideshow.is-unmuted .slideshow__sound-on{display:none}
.slideshow.is-unmuted .slideshow__sound-off{display:inline}
.hero__meta{
  font-size:.95rem;letter-spacing:.14em;text-transform:uppercase;
  color:rgba(255,255,255,.85);font-weight:400;
}
.hero__scroll{
  position:absolute;left:50%;bottom:2rem;transform:translateX(-50%);
  width:1px;height:54px;overflow:hidden;
}
.hero__scroll-line{
  display:block;width:1px;height:100%;background:rgba(255,255,255,.7);
  animation:scrolldrop 2s ease-in-out infinite;
}
@keyframes scrolldrop{
  0%{transform:translateY(-100%)}50%{transform:translateY(0)}100%{transform:translateY(100%)}
}

/* ===================== PROJECT / GALLERY ===================== */
.project{max-width:var(--maxw);margin:0 auto;padding:clamp(4rem,9vw,8rem) var(--pad)}
.project__intro{
  display:flex;justify-content:space-between;align-items:flex-end;gap:3rem;
  flex-wrap:wrap;margin-bottom:clamp(2.5rem,5vw,4.5rem);
}
.project__lede{max-width:46ch}
.project__name{
  font-family:var(--serif);font-weight:400;font-size:clamp(2.6rem,6vw,4.6rem);
  line-height:1;letter-spacing:-.01em;margin-bottom:1.1rem;
}
.project__desc{color:#4a463e;font-size:1.06rem;max-width:48ch}
.project__facts{display:flex;gap:2.6rem;flex-wrap:wrap}
.project__facts dt{
  font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-bottom:.4rem;
}
.project__facts dd{font-size:.95rem;letter-spacing:.02em}

.gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(.6rem,1.4vw,1.4rem);grid-auto-flow:dense}
.gallery figure{margin:0;overflow:hidden;background:#e9e4d9;cursor:pointer}
.gallery figure.l{grid-column:span 2}
.gallery img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .9s cubic-bezier(.2,.7,.2,1),opacity .8s ease;
}
.gallery figure:hover img{transform:scale(1.035)}

/* ===================== INTRO SPLIT (Project 02 intro) ===================== */
.project--tight{padding-top:clamp(2rem,4vw,3.5rem)}
.intro-split{
  max-width:var(--maxw);margin:0 auto;
  padding:clamp(4.5rem,10vw,9rem) var(--pad) clamp(2rem,4vw,3rem);
  display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,6vw,6rem);align-items:center;
  border-top:1px solid var(--line);
}
.intro-split__title{
  font-family:var(--serif);font-weight:400;font-size:clamp(2.8rem,6.5vw,5.5rem);
  line-height:1;margin:.6rem 0 1.3rem;letter-spacing:-.01em;
}
.intro-split .project__facts{margin-top:2.2rem}
.intro-split__media{overflow:hidden;background:#e9e4d9}
.intro-split__media img{width:100%;height:auto;object-fit:cover;aspect-ratio:3/4}

/* ===================== PROJECTS INDEX PAGE ===================== */
.projects-page{max-width:var(--maxw);margin:0 auto;padding:clamp(7rem,14vh,11rem) var(--pad) clamp(4rem,8vw,7rem)}
.projects-page__head{margin-bottom:clamp(2.5rem,6vw,4.5rem)}
.projects-page__title{
  font-family:var(--serif);font-weight:400;font-size:clamp(2.8rem,8vw,5.5rem);
  line-height:1;margin-top:.6rem;letter-spacing:-.01em;
}
.projects-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(1.4rem,3.5vw,3.5rem)}
.project-card{display:block}
.project-card__media{overflow:hidden;background:#e9e4d9;aspect-ratio:4/3}
.project-card__media img{width:100%;height:100%;object-fit:cover;transition:transform 1s cubic-bezier(.2,.7,.2,1)}
.project-card:hover .project-card__media img{transform:scale(1.04)}
.project-card__name{
  font-family:var(--serif);font-weight:400;font-size:clamp(1.6rem,3vw,2.4rem);
  line-height:1.1;margin:1.1rem 0 .35rem;letter-spacing:-.01em;
}
.project-card__meta{font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}

/* ===================== ABOUT / CONTACT ===================== */
.about{max-width:var(--maxw);margin:0 auto;padding:clamp(4rem,10vw,9rem) var(--pad);
  border-top:1px solid var(--line)}
.about__text{
  font-family:var(--serif);font-size:clamp(1.7rem,3.6vw,2.9rem);line-height:1.32;
  max-width:24ch;margin-top:1.5rem;letter-spacing:.005em;
}
@media(min-width:780px){.about__text{max-width:30ch}}

/* founders */
.founders{
  display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(1rem,2.5vw,2.2rem);
  margin-top:clamp(3rem,6vw,5rem);
}
.founder{margin:0}
.founder__photo{overflow:hidden;background:#e9e4d9;aspect-ratio:3/4}
.founder__photo img{width:100%;height:100%;object-fit:cover;transition:transform 1s cubic-bezier(.2,.7,.2,1)}
.founder:hover .founder__photo img{transform:scale(1.04)}
.founder figcaption{display:flex;flex-direction:column;gap:.2rem;margin-top:.9rem}
.founder__name{font-family:var(--serif);font-size:1.35rem;line-height:1.1}
.founder__role{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}

.contact{max-width:var(--maxw);margin:0 auto;padding:clamp(3rem,7vw,6rem) var(--pad) clamp(5rem,10vw,9rem);
  border-top:1px solid var(--line)}
.contact__title{font-family:var(--serif);font-weight:400;font-size:clamp(2.6rem,7vw,5rem);
  margin:1rem 0 2rem;line-height:1}
.contact__links{display:flex;gap:2.5rem;flex-wrap:wrap}
.contact__links a{
  font-size:1.1rem;border-bottom:1px solid var(--ink);padding-bottom:3px;transition:opacity .3s ease;
}
.contact__links a:hover{opacity:.55}

/* ===================== FOOTER ===================== */
.footer{background:var(--ink);color:#cfc9bd}
.footer__inner{
  max-width:var(--maxw);margin:0 auto;padding:3.5rem var(--pad);
  display:flex;align-items:center;justify-content:space-between;gap:2rem;flex-wrap:wrap;
}
.footer__logo{height:84px;width:auto}
.footer__nav{display:flex;gap:2rem}
.footer__nav a{font-size:.85rem;letter-spacing:.08em;transition:color .3s ease}
.footer__nav a:hover{color:#fff}
.footer__copy{font-size:.8rem;letter-spacing:.06em;color:#8e887c}
.footer__credits{
  max-width:var(--maxw);margin:0 auto;padding:0 var(--pad) 2.5rem;
  font-size:.68rem;letter-spacing:.08em;color:#6f6a60;
}

/* ===================== REVEAL ===================== */
.reveal{opacity:0;transform:translateY(28px);transition:opacity 1s ease,transform 1s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.gallery figure{opacity:0;transform:translateY(22px);transition:opacity .9s ease,transform .9s cubic-bezier(.2,.7,.2,1)}
.gallery figure.in{opacity:1;transform:none}

/* ===================== LIGHTBOX ===================== */
.lightbox{
  position:fixed;inset:0;z-index:100;background:rgba(18,17,15,.96);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transition:opacity .35s ease,visibility .35s ease;
}
.lightbox.open{opacity:1;visibility:visible}
.lightbox__img{max-width:90vw;max-height:88vh;object-fit:contain;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.lightbox__close{
  position:absolute;top:1.4rem;right:1.8rem;background:none;border:none;
  color:#fff;font-size:2.6rem;line-height:1;cursor:pointer;opacity:.8;transition:opacity .3s
}
.lightbox__close:hover{opacity:1}
.lightbox__nav{
  position:absolute;top:50%;transform:translateY(-50%);
  background:none;border:none;color:#fff;font-size:3rem;cursor:pointer;
  padding:1rem;opacity:.6;transition:opacity .3s;user-select:none;
}
.lightbox__nav:hover{opacity:1}
.lightbox__nav--prev{left:.5rem}
.lightbox__nav--next{right:.5rem}

/* ===================== RESPONSIVE ===================== */
@media(max-width:760px){
  .nav__menu{display:none}
  .nav__toggle{display:block}
  .nav__logo,.nav__logo-img{height:84px}
  .gallery{grid-template-columns:1fr}
  .gallery figure.l{grid-column:span 1}
  .project__intro{align-items:flex-start}
  .intro-split{grid-template-columns:1fr;gap:1.8rem}
  .intro-split__media{order:-1}
  .projects-grid{grid-template-columns:1fr;gap:2.2rem}
  .founders{grid-template-columns:repeat(2,1fr);gap:1.4rem 1.2rem}
  .slideshow__arrow{font-size:2.2rem;padding:1rem .5rem}
  .slideshow__counter{bottom:1.6rem}
  .footer__inner{flex-direction:column;align-items:flex-start;gap:1.5rem}
}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto}
  .reveal,.gallery figure{opacity:1;transform:none;transition:none}
}