/* Lacasa Architecture: minimalist dark theme */

@font-face {
  font-family: "Designer";
  src: url("../assets/fonts/DESIGNER.otf") format("opentype");
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #0a0a0a;
  --bg-raised: #121212;
  --text: #ededea;
  --text-muted: #8f8f8a;
  --line: rgba(237, 237, 234, 0.14);
  --line-strong: rgba(237, 237, 234, 0.28);
  --max-width: 1400px;
  --header-h: 88px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 6vw;
}

/* ---------- Header ---------- */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: linear-gradient(to bottom, rgba(10,10,10,0.85), rgba(10,10,10,0));
  transition: background 0.4s ease, height 0.4s ease, backdrop-filter 0.4s ease;
}

.site-header.solid {
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(6px);
  height: 68px;
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: "Designer", "Inter", sans-serif;
  font-size: 15px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text);
}

.brand svg { width: 22px; height: 22px; flex-shrink: 0; }

.brand .mark-fill { fill: var(--text); }

nav.primary-nav {
  display: flex;
  gap: 44px;
}

nav.primary-nav a {
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  position: relative;
  padding-bottom: 4px;
  transition: color 0.3s ease;
}

nav.primary-nav a:hover,
nav.primary-nav a.active {
  color: var(--text);
}

nav.primary-nav a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--text);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 22px;
  cursor: pointer;
}

@media (max-width: 820px) {
  nav.primary-nav {
    position: fixed;
    top: 68px; left: 0; right: 0; bottom: 0;
    background: rgba(10,10,10,0.98);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 34px;
    transform: translateY(-110%);
    transition: transform 0.4s ease;
  }
  nav.primary-nav.open { transform: translateY(0); }
  nav.primary-nav a { font-size: 15px; }
  .nav-toggle { display: block; }
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  height: 100vh;
  min-height: 560px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.55);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 0 6vw;
}

.hero-content .eyebrow {
  font-size: 12px;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: rgba(237,237,234,0.75);
  margin-bottom: 22px;
}

.hero-content h1 {
  font-family: "Designer", "Inter", sans-serif;
  font-weight: normal;
  font-size: clamp(2.4rem, 6vw, 5rem);
  letter-spacing: 0.06em;
  margin: 0 0 22px;
  text-transform: uppercase;
}

.hero-content p {
  font-size: clamp(0.95rem, 1.4vw, 1.15rem);
  color: rgba(237,237,234,0.8);
  max-width: 560px;
  margin: 0 auto;
  font-weight: 300;
}

.scroll-cue {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(237,237,234,0.6);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.scroll-cue .line {
  width: 1px;
  height: 34px;
  background: rgba(237,237,234,0.5);
  animation: scrollcue 1.8s ease-in-out infinite;
}

@keyframes scrollcue {
  0% { transform: scaleY(0.2); transform-origin: top; opacity: 0.4; }
  50% { transform: scaleY(1); transform-origin: top; opacity: 1; }
  100% { transform: scaleY(0.2); transform-origin: bottom; opacity: 0.4; }
}

/* ---------- Sections ---------- */

section { padding: 130px 0; }
section.tight { padding: 90px 0; }

.section-head { margin-bottom: 64px; }

.section-head .eyebrow {
  font-size: 12px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.section-head h2 {
  font-family: "Designer", "Inter", sans-serif;
  font-weight: normal;
  font-size: clamp(1.8rem, 3.6vw, 2.8rem);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 0;
}

.intro-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.intro-block .lead {
  font-size: clamp(1.3rem, 2vw, 1.7rem);
  font-weight: 300;
  color: var(--text);
  line-height: 1.5;
}

.intro-block .body {
  color: var(--text-muted);
  font-size: 0.98rem;
}

@media (max-width: 860px) {
  .intro-block { grid-template-columns: 1fr; gap: 32px; }
}

.stats-row {
  display: flex;
  flex-wrap: wrap;
  gap: 60px;
  margin-top: 70px;
  padding-top: 50px;
  border-top: 1px solid var(--line);
}

.stat .num {
  font-family: "Designer", "Inter", sans-serif;
  font-size: clamp(2rem, 3vw, 2.6rem);
  color: var(--text);
}

.stat .label {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 8px;
}

.stat-bar {
  margin-top: 16px;
  width: 100%;
  max-width: 140px;
  height: 2px;
  background: var(--line);
  overflow: hidden;
}

.stat-bar span {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--text);
  transition: width 1.6s cubic-bezier(0.16, 0.8, 0.24, 1);
}

/* ---------- Featured grid (home) ---------- */

.featured-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
}

.featured-grid a {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3/4;
  display: block;
}

.featured-grid img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.8s cubic-bezier(0.2,0.7,0.2,1), filter 0.5s ease;
  filter: grayscale(0.15) brightness(0.85);
}

.featured-grid a:hover img {
  transform: scale(1.06);
  filter: grayscale(0) brightness(1);
}

.featured-grid .cap {
  position: absolute;
  left: 20px; bottom: 18px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #fff;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.featured-grid a:hover .cap { opacity: 1; }

@media (max-width: 900px) {
  .featured-grid { grid-template-columns: repeat(2, 1fr); }
}

.view-all {
  display: inline-block;
  margin-top: 46px;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 6px;
  transition: opacity 0.3s ease;
}
.view-all:hover { opacity: 0.6; }

/* ---------- Projects grid (full gallery) ---------- */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3px;
}

.gallery-grid figure {
  margin: 0;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/3;
}

.gallery-grid figure.tall { aspect-ratio: 3/4; }

.gallery-grid img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease, filter 0.5s ease;
  filter: grayscale(0.1) brightness(0.88);
}

.gallery-grid figure:hover img {
  transform: scale(1.05);
  filter: grayscale(0) brightness(1);
}

@media (max-width: 900px) {
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .gallery-grid { grid-template-columns: 1fr; }
}

/* Lightbox */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(6,6,6,0.96);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}
.lightbox.open { opacity: 1; pointer-events: auto; }
.lightbox img {
  max-width: 88vw;
  max-height: 84vh;
  width: auto; height: auto;
  box-shadow: 0 30px 80px rgba(0,0,0,0.6);
}
.lightbox .lb-close,
.lightbox .lb-prev,
.lightbox .lb-next {
  position: absolute;
  background: none;
  border: none;
  color: #fff;
  font-size: 15px;
  letter-spacing: 0.1em;
  cursor: pointer;
  padding: 14px;
  opacity: 0.7;
  transition: opacity 0.3s ease;
}
.lightbox .lb-close:hover,
.lightbox .lb-prev:hover,
.lightbox .lb-next:hover { opacity: 1; }
.lightbox .lb-close { top: 24px; right: 28px; font-size: 26px; }
.lightbox .lb-prev { left: 12px; top: 50%; transform: translateY(-50%); font-size: 32px; }
.lightbox .lb-next { right: 12px; top: 50%; transform: translateY(-50%); font-size: 32px; }

/* ---------- About page ---------- */

.about-hero {
  padding: 190px 0 90px;
}

.about-hero .kicker {
  font-size: 12px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 26px;
}

.about-hero h1 {
  font-family: "Designer", "Inter", sans-serif;
  font-weight: normal;
  font-size: clamp(2rem, 4.4vw, 3.4rem);
  letter-spacing: 0.03em;
  max-width: 900px;
  margin: 0;
  text-transform: uppercase;
}

.philosophy {
  max-width: 780px;
  color: var(--text-muted);
  font-size: 1.05rem;
}

.philosophy p { margin-bottom: 1.4em; }
.philosophy strong { color: var(--text); font-weight: 500; }

.countries {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 20px;
}

.countries span {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: 1px solid var(--line-strong);
  padding: 9px 16px;
  color: var(--text-muted);
}

/* ---------- Contact page ---------- */

.contact-hero {
  padding: 190px 0 100px;
  text-align: center;
}

.contact-hero .kicker {
  font-size: 12px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 26px;
}

.contact-hero h1 {
  font-family: "Designer", "Inter", sans-serif;
  font-weight: normal;
  font-size: clamp(2rem, 5vw, 3.6rem);
  letter-spacing: 0.03em;
  margin: 0 0 40px;
  text-transform: uppercase;
}

.contact-hero .email-link {
  font-size: clamp(1.2rem, 2.4vw, 1.8rem);
  font-family: "Designer", "Inter", sans-serif;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 10px;
  display: inline-block;
  transition: opacity 0.3s ease;
}
.contact-hero .email-link:hover { opacity: 0.6; }

.contact-details {
  display: flex;
  justify-content: center;
  gap: 90px;
  flex-wrap: wrap;
  margin-top: 70px;
  padding-top: 50px;
  border-top: 1px solid var(--line);
}

.contact-details .label {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.contact-details .value { font-size: 1rem; }

/* ---------- Footer ---------- */

footer.site-footer {
  border-top: 1px solid var(--line);
  padding: 60px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-inner .brand { font-size: 13px; }

.footer-nav {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
}

.footer-nav a {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color 0.3s ease;
}
.footer-nav a:hover { color: var(--text); }

.footer-meta {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

/* ---------- Reveal on scroll ---------- */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}