/* ===========================================================
   GRG Architect — minimal luxury
   Palette: ivory paper, charcoal ink, warm bronze accent
   =========================================================== */
:root {
  --ink: #1c1b19;
  --ink-soft: #4a4744;
  --paper: #f6f4ef;
  --paper-2: #efece5;
  --line: #ddd8cf;
  --accent: #9a7b4f;
  --accent-2: #b59a6e;
  --white: #ffffff;
  --max: 1240px;
  --ease: cubic-bezier(.22,.61,.36,1);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  font-weight: 400;
  font-size: 17px;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 2rem; }

.display {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.01em;
  font-size: clamp(2.1rem, 5vw, 3.6rem);
}
.eyebrow {
  display: inline-block;
  font-size: .72rem;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 1rem;
}

/* ---------- Navigation ---------- */
.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background .4s var(--ease), box-shadow .4s var(--ease), padding .4s var(--ease);
  padding: 1.6rem 0;
}
.site-nav.scrolled {
  background: rgba(246,244,239,.92);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 var(--line);
  padding: 1rem 0;
}
.nav-inner { max-width: var(--max); margin: 0 auto; padding: 0 2rem; display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: baseline; gap: .5rem; color: var(--white); transition: color .4s; }
.site-nav.scrolled .logo, .site-nav.solid .logo { color: var(--ink); }
.logo-mark { font-family: 'Cormorant Garamond', serif; font-weight: 600; font-size: 1.7rem; letter-spacing: .12em; }
.logo-sub { font-size: .7rem; letter-spacing: .25em; text-transform: uppercase; opacity: .85; }
.nav-links { display: flex; gap: 2.2rem; }
.nav-links a {
  font-size: .82rem; letter-spacing: .12em; text-transform: uppercase; font-weight: 500;
  color: var(--white); opacity: .9; position: relative; padding: .2rem 0; transition: color .4s, opacity .3s;
}
.site-nav.scrolled .nav-links a, .site-nav.solid .nav-links a { color: var(--ink); }
.nav-links a::after { content: ''; position: absolute; left: 0; bottom: -2px; width: 0; height: 1px; background: var(--accent); transition: width .3s var(--ease); }
.nav-links a:hover { opacity: 1; }
.nav-links a:hover::after { width: 100%; }
.logo-img { height: 34px; width: auto; display: block; transition: height .4s var(--ease); }
.site-nav.scrolled .logo-img { height: 28px; }
/* On the transparent nav over the dark hero, lift the logo for contrast. */
.site-nav:not(.scrolled):not(.solid) .logo-img { filter: brightness(0) invert(1) drop-shadow(0 1px 3px rgba(0,0,0,.4)); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 26px; height: 2px; background: var(--white); transition: .3s; }
.site-nav.scrolled .nav-toggle span, .site-nav.solid .nav-toggle span { background: var(--ink); }

/* ---------- Hero ---------- */
.hero { position: relative; height: 100vh; min-height: 620px; display: flex; align-items: center; color: var(--white); overflow: hidden; background: #201d1a; }
.hero-slideshow { position: absolute; inset: 0; }
.hero-slide {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0; transition: opacity 1.6s var(--ease);
  transform: scale(1.06);
}
.hero-slide.active { opacity: 1; animation: heroZoom 8s ease-out forwards; }
@keyframes heroZoom { from { transform: scale(1.06); } to { transform: scale(1); } }
/* Stronger top+bottom gradient keeps text legible and subdues image watermarks. */
.hero-overlay { position: absolute; inset: 0; background:
  linear-gradient(180deg, rgba(18,16,14,.62) 0%, rgba(18,16,14,.32) 38%, rgba(18,16,14,.78) 100%); }
.hero-content { position: relative; z-index: 2; max-width: var(--max); margin: 0 auto; padding: 0 2rem; width: 100%; }
.hero-eyebrow { font-size: .78rem; letter-spacing: .3em; text-transform: uppercase; color: var(--accent-2); font-weight: 600; }
.hero-title { font-family: 'Cormorant Garamond', serif; font-weight: 500; font-size: clamp(2.6rem, 7vw, 5.4rem); line-height: 1.04; margin: 1.2rem 0 1.8rem; letter-spacing: -0.01em; }
.hero-quotes { position: relative; min-height: 5.5rem; max-width: 560px; }
.hero-quote { position: absolute; inset: 0; opacity: 0; transform: translateY(10px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.hero-quote.active { opacity: 1; transform: translateY(0); }
.hero-quote span { font-style: italic; font-family: 'Cormorant Garamond', serif; font-size: 1.25rem; line-height: 1.5; display: block; }
.hero-quote cite { display: block; margin-top: .5rem; font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; font-style: normal; color: var(--accent-2); }
.hero-cta { display: inline-block; margin-top: 2.4rem; padding: .95rem 2.2rem; border: 1px solid rgba(255,255,255,.55); color: var(--white); font-size: .8rem; letter-spacing: .18em; text-transform: uppercase; font-weight: 500; transition: background .35s, color .35s, border-color .35s; }
.hero-cta:hover { background: var(--white); color: var(--ink); border-color: var(--white); }
.scroll-cue { position: absolute; bottom: 2.2rem; left: 50%; transform: translateX(-50%); z-index: 2; width: 26px; height: 42px; border: 1px solid rgba(255,255,255,.5); border-radius: 14px; }
.scroll-cue span { position: absolute; top: 8px; left: 50%; transform: translateX(-50%); width: 3px; height: 8px; background: var(--white); border-radius: 2px; animation: scrollDot 1.6s infinite; }
@keyframes scrollDot { 0% { opacity: 0; top: 8px; } 40% { opacity: 1; } 80% { opacity: 0; top: 22px; } 100% { opacity: 0; } }

/* ---------- Sections ---------- */
.section { padding: clamp(4.5rem, 9vw, 8rem) 0; }
.section-head { max-width: 760px; margin-bottom: 3.5rem; }
.section-head .display { margin-top: .3rem; }
.section-intro { margin-top: 1.2rem; color: var(--ink-soft); font-size: 1.05rem; max-width: 620px; }

/* Studio */
.studio { background: var(--paper); }
.studio-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 4rem; }
.studio-lead p { margin-bottom: 1.2rem; color: var(--ink-soft); }
.studio-lead .values { color: var(--ink); font-family: 'Cormorant Garamond', serif; font-style: italic; font-size: 1.3rem; margin-top: 1.6rem; }
.people { border-left: 1px solid var(--line); padding-left: 2.5rem; }
.person { margin-bottom: 2.2rem; }
.person:last-child { margin-bottom: 0; }
.person h3 { font-family: 'Cormorant Garamond', serif; font-size: 1.6rem; font-weight: 600; }
.person .role { display: block; font-size: .72rem; letter-spacing: .2em; text-transform: uppercase; color: var(--accent); margin: .2rem 0 .8rem; font-weight: 600; }
.person p { color: var(--ink-soft); font-size: .96rem; }

/* Services */
.services { background: var(--paper-2); }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.service-card { background: var(--paper-2); padding: 2.4rem 2rem; transition: background .4s var(--ease); }
.service-card:hover { background: var(--white); }
.service-num { font-family: 'Cormorant Garamond', serif; font-size: 1.1rem; color: var(--accent); letter-spacing: .1em; }
.service-card h3 { font-family: 'Cormorant Garamond', serif; font-size: 1.5rem; font-weight: 600; margin: .6rem 0 .6rem; }
.service-card p { color: var(--ink-soft); font-size: .95rem; }
.services-note { margin-top: 2.5rem; color: var(--ink-soft); font-size: .98rem; max-width: 880px; }

/* Portfolio / work grid */
.portfolio { background: var(--paper); }
.interiors { background: var(--ink); color: var(--paper); }
.interiors .display, .interiors .person h3 { color: var(--white); }
.interiors .section-intro { color: rgba(246,244,239,.7); }
.interiors .work-info h3 { color: var(--white); }
.interiors .work-card { border-color: rgba(255,255,255,.08); }
.interiors .work-meta { color: rgba(246,244,239,.55); }

.filters { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 2.5rem; }
.filter {
  background: none; border: 1px solid var(--line); color: var(--ink-soft); cursor: pointer;
  padding: .5rem 1.1rem; font-size: .76rem; letter-spacing: .1em; text-transform: uppercase; font-weight: 500;
  border-radius: 100px; transition: all .3s var(--ease); font-family: inherit;
}
.filter:hover { border-color: var(--accent); color: var(--ink); }
.filter.active { background: var(--accent); border-color: var(--accent); color: var(--white); }
.interiors .filter { border-color: rgba(255,255,255,.2); color: rgba(246,244,239,.7); }
.interiors .filter:hover { border-color: var(--accent-2); color: var(--white); }
.interiors .filter.active { background: var(--accent); border-color: var(--accent); color: var(--white); }

.work-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.6rem; }
.work-card { display: block; transition: transform .5s var(--ease); }
.work-card.hide { display: none; }
.work-img { position: relative; aspect-ratio: 4/5; overflow: hidden; background: var(--paper-2); }
.work-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s var(--ease); }
.work-card:hover .work-img img { transform: scale(1.06); }
.work-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(15,13,11,.45)); opacity: 0; transition: opacity .4s; }
.work-card:hover .work-img::after { opacity: 1; }
.work-info { padding: 1.1rem .2rem 0; }
.work-cat { font-size: .68rem; letter-spacing: .18em; text-transform: uppercase; color: var(--accent); font-weight: 600; }
.work-info h3 { font-family: 'Cormorant Garamond', serif; font-size: 1.45rem; font-weight: 600; margin: .25rem 0 .15rem; }
.work-meta { font-size: .82rem; color: var(--ink-soft); }
.empty-note { color: var(--ink-soft); font-style: italic; }
.interiors .empty-note { color: rgba(246,244,239,.6); }

/* Contact */
.contact-section { background: var(--paper-2); }
.contact-form { max-width: 720px; }
.cf-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; margin-bottom: 1.2rem; }
.contact-form input, .contact-form textarea {
  width: 100%; padding: .95rem 0; border: none; border-bottom: 1px solid var(--line);
  background: transparent; font: inherit; color: var(--ink); transition: border-color .3s;
}
.contact-form textarea { margin-bottom: 1.6rem; resize: vertical; }
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: var(--accent); }
.contact-form input::placeholder, .contact-form textarea::placeholder { color: #a8a294; }
.btn-line { display: inline-block; background: var(--ink); color: var(--white); border: none; cursor: pointer; padding: 1rem 2.6rem; font-size: .8rem; letter-spacing: .18em; text-transform: uppercase; font-weight: 500; font-family: inherit; transition: background .35s; }
.btn-line:hover { background: var(--accent); }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: var(--paper); padding: 4.5rem 2rem 2rem; }
.footer-grid { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 3rem; padding-bottom: 3rem; border-bottom: 1px solid rgba(255,255,255,.12); }
.footer-logo-img { height: 30px; width: auto; filter: brightness(0) invert(1); opacity: .92; }
.footer-tag { color: rgba(246,244,239,.6); margin-top: .6rem; font-size: .95rem; }
.footer-col h4 { font-size: .72rem; letter-spacing: .2em; text-transform: uppercase; color: var(--accent-2); margin-bottom: .9rem; font-weight: 600; }
.footer-col p { color: rgba(246,244,239,.75); font-size: .95rem; }
.footer-col a:hover { color: var(--white); }
.footer-base { max-width: var(--max); margin: 1.6rem auto 0; display: flex; justify-content: space-between; align-items: center; font-size: .8rem; color: rgba(246,244,239,.45); }
.footer-admin:hover { color: var(--accent-2); }

/* ---------- Project detail ---------- */
.project-detail { padding-top: 0; }
.project-hero { position: relative; height: 78vh; min-height: 520px; display: flex; align-items: flex-end; color: var(--white); overflow: hidden; }
.project-hero-img { position: absolute; inset: 0; background-size: cover; background-position: center; }
.project-hero-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(15,13,11,.3), rgba(15,13,11,.7)); }
.project-hero-text { position: relative; z-index: 2; max-width: var(--max); margin: 0 auto; padding: 0 2rem 4rem; width: 100%; }
.project-hero-text .display { color: var(--white); }
.back-link { display: inline-block; font-size: .8rem; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 1.4rem; opacity: .85; }
.back-link:hover { opacity: 1; }
.project-meta { margin-top: .8rem; font-size: .95rem; letter-spacing: .05em; color: rgba(255,255,255,.85); }
.project-body { padding-top: 4rem; padding-bottom: 5rem; }
.project-desc { max-width: 720px; margin: 0 auto 3.5rem; font-size: 1.12rem; line-height: 1.85; color: var(--ink-soft); font-family: 'Cormorant Garamond', serif; }
.gallery { columns: 2; column-gap: 1.6rem; }
.gallery-item { break-inside: avoid; margin-bottom: 1.6rem; cursor: zoom-in; overflow: hidden; }
.gallery-item img { width: 100%; transition: transform 1s var(--ease); }
.gallery-item:hover img { transform: scale(1.04); }
.gallery-item figcaption { font-size: .82rem; color: var(--ink-soft); padding-top: .5rem; }
.project-nav { display: flex; justify-content: space-between; margin-top: 4rem; padding-top: 2rem; border-top: 1px solid var(--line); font-family: 'Cormorant Garamond', serif; font-size: 1.25rem; gap: 1rem; }
.project-nav a:hover { color: var(--accent); }
.pn-next { margin-left: auto; text-align: right; }

/* Lightbox */
.lightbox { position: fixed; inset: 0; z-index: 200; background: rgba(15,13,11,.95); display: flex; align-items: center; justify-content: center; }
.lightbox[hidden] { display: none; }
.lb-img { max-width: 90vw; max-height: 86vh; object-fit: contain; box-shadow: 0 20px 60px rgba(0,0,0,.5); }
.lb-close, .lb-prev, .lb-next { position: absolute; background: none; border: none; color: rgba(255,255,255,.8); cursor: pointer; font-size: 2.4rem; line-height: 1; padding: 1rem; transition: color .25s; }
.lb-close:hover, .lb-prev:hover, .lb-next:hover { color: var(--white); }
.lb-close { top: 1rem; right: 1.5rem; font-size: 1.8rem; }
.lb-prev { left: 1rem; top: 50%; transform: translateY(-50%); }
.lb-next { right: 1rem; top: 50%; transform: translateY(-50%); }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .9s var(--ease) var(--d, 0ms), transform .9s var(--ease) var(--d, 0ms); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .studio-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .people { border-left: none; padding-left: 0; border-top: 1px solid var(--line); padding-top: 2rem; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .work-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed; inset: 0 0 0 auto; width: 75%; max-width: 320px; background: var(--paper);
    flex-direction: column; justify-content: center; gap: 1.8rem; padding: 2rem; transform: translateX(100%);
    transition: transform .4s var(--ease); box-shadow: -10px 0 40px rgba(0,0,0,.12);
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { color: var(--ink) !important; font-size: 1rem; }
  .services-grid, .work-grid, .cf-row { grid-template-columns: 1fr; }
  .gallery { columns: 1; }
  .container, .nav-inner, .hero-content { padding-left: 1.4rem; padding-right: 1.4rem; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}