/* ==========================================================================
   Yüzgüleç Yapı Mimarlık — anasayfa stilleri
   ========================================================================== */

:root{
  --navy:#16305c;
  --navy-deep:#0e2144;
  --turquoise:#28aec7;
  --turquoise-soft:#6fcbdc;
  --stone:#f4f1ea;
  --stone-deep:#ece7dc;
  --charcoal:#23262b;
  --charcoal-soft:#3a3e45;
  --ink:#191b1e;
  --ink-soft:rgba(25,27,30,.64);
  --ink-faint:rgba(25,27,30,.42);
  --white:#ffffff;
  --rule:rgba(25,27,30,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
  --serif:'Instrument Serif', Georgia, serif;
  --sans:'Inter','Helvetica Neue',Helvetica,Arial,sans-serif;
}

*, *::before, *::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  margin:0;
  background:var(--stone);
  color:var(--ink);
  font-family:var(--sans);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3{ font-family:var(--serif); font-weight:400; margin:0; letter-spacing:-.015em; }
p{ margin:0; }
em{ font-style:italic; color:var(--turquoise); }

.container{ max-width:1280px; margin:0 auto; padding:0 clamp(20px,4vw,56px); }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  height:50px; padding:0 30px; border-radius:999px;
  font-size:14.5px; font-weight:500; letter-spacing:.01em;
  white-space:nowrap; transition:transform .4s var(--ease), background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease);
  border:1px solid transparent;
}
.btn-dark{ background:var(--navy); color:var(--white); }
.btn-dark:hover{ transform:translateY(-2px); background:var(--navy-deep); }
.btn-glass{
  background:rgba(255,255,255,.14);
  color:var(--white);
  border-color:rgba(255,255,255,.55);
  backdrop-filter:blur(6px); -webkit-backdrop-filter:blur(6px);
}
.btn-glass:hover{ transform:translateY(-2px); background:rgba(255,255,255,.92); color:var(--ink); }
.btn-outline{
  background:transparent; color:var(--navy); border-color:rgba(22,48,92,.35);
}
.btn-outline:hover{ transform:translateY(-2px); background:var(--navy); color:var(--white); border-color:var(--navy); }
.btn-social{
  height:46px; padding:0 24px; font-size:13.5px;
  background:rgba(255,255,255,.1); color:var(--white); border-color:rgba(255,255,255,.3);
  backdrop-filter:blur(6px); -webkit-backdrop-filter:blur(6px);
  gap:8px;
}
.btn-social svg{ flex-shrink:0; }
.btn-social:hover{ transform:translateY(-2px); background:rgba(255,255,255,.92); color:var(--navy); }
button.btn{ cursor:pointer; font-family:var(--sans); }

/* ---------- reveal animations ---------- */
@keyframes fadeRise{
  from{ opacity:0; transform:translateY(22px); }
  to{ opacity:1; transform:translateY(0); }
}
.reveal{ opacity:0; animation:fadeRise .9s var(--ease) forwards; }
.reveal-delay-1{ animation-delay:.15s; }
.reveal-delay-2{ animation-delay:.32s; }
.reveal-delay-3{ animation-delay:.5s; }

.reveal-on-scroll{ opacity:0; transform:translateY(28px); transition:opacity .8s var(--ease), transform .8s var(--ease); }
.reveal-on-scroll.in-view{ opacity:1; transform:translateY(0); }

/* ==========================================================================
   NAVBAR
   ========================================================================== */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:100;
  padding:18px clamp(16px,3.4vw,44px);
}
.nav-inner{
  max-width:1280px; margin:0 auto;
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  background:#FAFAF8;
  border:none;
  border-bottom:1px solid rgba(27,62,115,.08);
  box-shadow:0 2px 12px rgba(20,30,50,.05);
  border-radius:16px;
  padding:10px 14px 10px 18px;
}

@keyframes logoReveal{
  from{ opacity:0; transform:translateY(-10px); }
  to{ opacity:1; transform:translateY(0); }
}
@keyframes logoFloat{
  0%, 100%{ transform:translateY(0); }
  50%{ transform:translateY(-3px); }
}
.nav-logo{
  display:flex; align-items:center; flex-shrink:0;
  animation:logoReveal .7s var(--ease) both;
}
.nav-logo-crop{
  position:relative; display:block; overflow:hidden;
  width:192px; height:62px;
  animation:logoFloat 4.5s ease-in-out .7s infinite;
}
.nav-logo-img{
  position:absolute; top:-4px; left:-1px;
  width:194px; height:auto; max-width:none;
  transition:transform .3s var(--ease);
}
.nav-logo:hover .nav-logo-img{ transform:scale(1.02); }

.nav-links{ display:flex; align-items:center; gap:clamp(18px,2.4vw,34px); }
.nav-links a{
  font-size:14.5px; color:var(--ink-soft); letter-spacing:-.005em;
  transition:color .3s var(--ease);
  position:relative;
}
.nav-links a::after{
  content:''; position:absolute; left:0; right:0; bottom:-4px; height:1px;
  background:var(--turquoise); transform:scaleX(0); transform-origin:left;
  transition:transform .35s var(--ease);
}
.nav-links a:hover{ color:var(--ink); }
.nav-links a:hover::after{ transform:scaleX(1); }

.nav-cta{ flex-shrink:0; height:44px; padding:0 22px; font-size:13.5px; background:#1B3E73; color:#FFFFFF; }
.nav-cta:hover{ background:#142f57; }

.nav-burger{
  display:none; flex-direction:column; justify-content:center; gap:5px;
  width:40px; height:40px; border-radius:10px; border:none; background:transparent;
  cursor:pointer; flex-shrink:0;
}
.nav-burger span{ display:block; height:1.6px; width:20px; background:var(--ink); margin:0 auto; transition:transform .3s var(--ease), opacity .3s var(--ease); }
.nav-burger.is-open span:nth-child(1){ transform:translateY(6.6px) rotate(45deg); }
.nav-burger.is-open span:nth-child(2){ opacity:0; }
.nav-burger.is-open span:nth-child(3){ transform:translateY(-6.6px) rotate(-45deg); }

.nav-mobile{
  max-width:1280px; margin:8px auto 0;
  display:none; flex-direction:column; gap:4px;
  background:#FAFAF8;
  border:1px solid rgba(27,62,115,.08);
  border-radius:16px;
  padding:10px;
  box-shadow:0 14px 34px rgba(20,30,50,.08);
  overflow:hidden;
  max-height:0;
  opacity:0;
  transition:max-height .4s var(--ease), opacity .3s var(--ease), padding .4s var(--ease);
}
.nav-mobile.is-open{ display:flex; max-height:340px; opacity:1; padding:10px; }
.nav-mobile a{ padding:12px 14px; border-radius:10px; font-size:15px; color:var(--ink-soft); }
.nav-mobile a:hover{ background:var(--stone-deep); color:var(--ink); }
.nav-mobile .btn{ margin-top:4px; background:#1B3E73; color:#FFFFFF; }
.nav-mobile .btn:hover{ background:#142f57; color:#FFFFFF; }

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{
  position:relative;
  min-height:100svh;
  display:flex; align-items:center; justify-content:center;
  overflow:hidden;
  background:var(--charcoal);
}
.hero-media{ position:absolute; inset:0; z-index:0; }
@keyframes heroKenBurns{
  from{ transform:scale(1); }
  to{ transform:scale(1.045); }
}
.hero-img{
  position:absolute; inset:0; width:100%; height:100%; object-fit:cover;
  object-position:center 32%;
  opacity:0; transition:opacity 2.2s var(--ease);
}
.hero-img[data-hero-img="0"]{ object-position:center 40%; }
.hero-img[data-hero-img="1"]{ object-position:center 24%; }
.hero-img.active{ opacity:1; animation:heroKenBurns 7s linear forwards; }
.hero-veil{
  position:absolute; inset:0;
  background:
    linear-gradient(to bottom, rgba(10,14,22,.6) 0%, rgba(10,14,22,.34) 32%, rgba(10,14,22,.4) 72%, rgba(10,14,22,.76) 100%);
}
.hero-content{
  position:relative; z-index:2; text-align:center; color:var(--white);
  padding:120px 20px 60px; max-width:900px;
}
.eyebrow{
  font-size:13px; letter-spacing:.14em; text-transform:uppercase;
  color:rgba(255,255,255,.78); margin-bottom:18px;
}
.eyebrow span{ color:var(--turquoise-soft); }
.hero h1{
  font-size:clamp(38px,6.4vw,78px);
  line-height:1.04;
  letter-spacing:-.02em;
  color:var(--white);
}
.hero h1 em{ font-style:italic; color:var(--turquoise-soft); }
.hero-sub{
  margin:26px auto 0; max-width:560px;
  font-size:clamp(15px,1.2vw,18px); line-height:1.6;
  color:rgba(255,255,255,.82);
}
.hero-actions{ display:flex; flex-wrap:wrap; gap:14px; justify-content:center; margin-top:38px; }

.hero-scroll-hint{
  position:absolute; left:50%; bottom:30px; transform:translateX(-50%); z-index:2;
  width:22px; height:36px; border:1px solid rgba(255,255,255,.5); border-radius:20px;
}
.hero-scroll-hint span{
  position:absolute; top:7px; left:50%; transform:translateX(-50%);
  width:3px; height:7px; border-radius:2px; background:var(--white);
  animation:scrollDot 2s var(--ease) infinite;
}
@keyframes scrollDot{
  0%{ opacity:1; top:7px; }
  70%{ opacity:0; top:20px; }
  100%{ opacity:0; top:7px; }
}

/* ==========================================================================
   INTRO
   ========================================================================== */
.intro{ padding:clamp(80px,10vw,140px) 0; background:var(--stone); }
.intro-inner{ text-align:center; }
.intro-kicker{
  font-size:12.5px; letter-spacing:.16em; text-transform:uppercase;
  color:var(--turquoise); margin-bottom:18px; font-weight:500;
}
.intro h2{
  font-size:clamp(26px,3.6vw,46px); line-height:1.28; letter-spacing:-.015em;
  max-width:960px; margin:0 auto; color:var(--ink);
}
.intro h2 em{ color:var(--navy); font-style:italic; }
.lg-only{ display:none; }

/* ==========================================================================
   SHARED SECTION HEAD
   ========================================================================== */
.section{ padding:clamp(70px,9vw,120px) 0; }
.section-shade{ background:var(--stone-deep); }
.kicker{
  font-size:12.5px; letter-spacing:.16em; text-transform:uppercase;
  color:var(--turquoise); font-weight:500; margin-bottom:14px;
}
.kicker-light{ color:var(--turquoise-soft); }
.section-head{ max-width:680px; margin-bottom:clamp(40px,5vw,64px); }
.section-head h2{ font-size:clamp(28px,3.6vw,46px); color:var(--ink); }
.section-desc{ margin-top:16px; font-size:16px; line-height:1.6; color:var(--ink-soft); }

/* ==========================================================================
   PROJECTS
   ========================================================================== */
.project-grid{
  display:grid; grid-template-columns:repeat(2, 1fr); gap:28px; align-items:start;
}
.project-unit--wide{ grid-column:1 / -1; }
.project-card--wide .project-media{ aspect-ratio:16/8; }
.project-card--wide .project-info{
  display:grid; grid-template-columns:1fr auto; grid-template-rows:auto auto 1fr auto; column-gap:40px;
}

.project-card{
  background:var(--white);
  border-radius:18px;
  overflow:hidden;
  box-shadow:0 1px 0 rgba(20,30,50,.03), 0 18px 40px rgba(20,30,50,.06);
  display:flex; flex-direction:column;
}
.project-media{ position:relative; overflow:hidden; aspect-ratio:4/3; background:var(--stone-deep); }
.project-media img{ width:100%; height:100%; object-fit:cover; transition:transform .7s var(--ease); }
.project-card:hover .project-media img{ transform:scale(1.055); }

.project-placeholder{
  width:100%; height:100%; min-width:0; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:10px;
  background:linear-gradient(155deg, var(--navy), var(--navy-deep));
  color:rgba(255,255,255,.7); text-align:center; padding:20px;
}
.project-placeholder svg{ width:36px; height:36px; opacity:.75; }
.project-placeholder span{ font-size:12.5px; letter-spacing:.03em; max-width:22ch; }
.project-detail-media .project-placeholder{ aspect-ratio:4/3; border-radius:14px; }

.project-info{ padding:26px clamp(20px,2.6vw,32px) 28px; display:flex; flex-direction:column; gap:8px; flex:1; }
.tag{
  align-self:flex-start;
  font-size:11.5px; letter-spacing:.08em; text-transform:uppercase; font-weight:600;
  padding:6px 12px; border-radius:999px; margin-bottom:4px;
}
.tag-konut{ background:rgba(22,48,92,.09); color:var(--navy); }
.tag-saglik{ background:rgba(40,174,199,.14); color:#158298; }
.tag-villa{ background:rgba(58,62,69,.09); color:var(--charcoal-soft); }
.project-info h3{ font-size:24px; color:var(--ink); }
.project-info h3 small{ font-family:var(--sans); font-size:13px; font-weight:400; color:var(--ink-faint); }
.project-loc{ font-size:13px; color:var(--ink-faint); letter-spacing:.02em; }
.project-capacity{
  display:flex; align-items:center; gap:6px;
  font-size:13px; color:var(--ink-soft); margin-top:6px;
}
.project-capacity strong{ color:var(--turquoise); font-weight:700; }
.project-desc{ font-size:14.5px; line-height:1.6; color:var(--ink-soft); margin-top:4px; flex:1; }
.project-cta{
  display:inline-flex; align-items:center; gap:6px; margin-top:14px;
  font-size:13.5px; font-weight:500; color:var(--navy);
}
.project-cta span{ transition:transform .3s var(--ease); }
.project-cta:hover span{ transform:translateX(4px); }

.project-trigger{
  background:none; border:none; padding:0; cursor:pointer;
  font-family:var(--sans);
}
.project-trigger .cta-arrow{ display:inline-block; }
.project-trigger[aria-expanded="true"] .cta-arrow{ transform:rotate(90deg); }
.project-trigger[aria-expanded="true"]:hover .cta-arrow{ transform:rotate(90deg) translateX(0); }

/* ---------- project detail accordion ---------- */
.project-unit{ min-width:0; transition:grid-column .1s; }
.project-unit.is-expanded{ grid-column:1 / -1; }

.project-detail{
  max-height:0; overflow:hidden; opacity:0; margin-top:0;
  transition:max-height .45s var(--ease), opacity .35s var(--ease), margin-top .45s var(--ease);
}
.project-detail.is-open{ opacity:1; margin-top:22px; }

.project-detail-inner{
  background:var(--stone);
  border:1px solid var(--rule);
  border-radius:20px;
  padding:clamp(22px,3vw,40px);
}
.project-detail-grid{
  display:grid; grid-template-columns:1.05fr 1fr; gap:clamp(24px,3.6vw,48px);
}
.project-detail-media{ display:flex; flex-direction:column; gap:12px; }
.project-detail-img{
  width:100%; aspect-ratio:4/3; object-fit:cover; border-radius:14px;
  background:var(--stone-deep);
}
.project-detail-thumbs{ display:flex; gap:10px; flex-wrap:wrap; }
.project-detail-thumbs .thumb{
  width:64px; height:64px; border-radius:10px; overflow:hidden;
  padding:0; cursor:pointer; background:none;
  border:2px solid transparent; opacity:.6;
  transition:border-color .3s var(--ease), opacity .3s var(--ease);
}
.project-detail-thumbs .thumb img{ width:100%; height:100%; object-fit:cover; }
.project-detail-thumbs .thumb:hover{ opacity:1; }
.project-detail-thumbs .thumb.is-active{ border-color:var(--turquoise); opacity:1; }

.project-detail-info{ display:flex; flex-direction:column; }
.project-detail-info h3{ font-size:clamp(24px,2.6vw,32px); color:var(--ink); margin-top:6px; }
.project-detail-info h3 small{ font-family:var(--sans); font-size:14px; font-weight:400; color:var(--ink-faint); }
.project-detail-loc{ font-size:13px; color:var(--ink-faint); letter-spacing:.02em; margin-top:6px; }

.project-capacity-box{
  display:inline-flex; flex-direction:column; align-items:flex-start; gap:2px;
  background:rgba(40,174,199,.1); border:1px solid rgba(40,174,199,.25);
  border-radius:12px; padding:10px 20px; margin-top:16px;
}
.project-capacity-box span{
  font-size:10.5px; letter-spacing:.1em; text-transform:uppercase;
  color:var(--turquoise); font-weight:600;
}
.project-capacity-box strong{
  font-family:var(--serif); font-size:22px; font-weight:400; color:var(--navy);
}

.project-detail-desc{ font-size:15px; line-height:1.65; color:var(--ink-soft); margin-top:16px; }

.project-detail-highlights{ margin-top:22px; padding-top:20px; border-top:1px solid var(--rule); }
.project-detail-highlights h4{
  font-family:var(--sans); font-size:12px; letter-spacing:.1em; text-transform:uppercase;
  font-weight:600; color:var(--turquoise); margin:0 0 12px;
}
.project-detail-highlights ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:8px; }
.project-detail-highlights li{
  font-size:14px; line-height:1.5; color:var(--ink-soft); padding-left:18px; position:relative;
}
.project-detail-highlights li::before{
  content:''; position:absolute; left:0; top:8px;
  width:7px; height:1.6px; background:var(--turquoise);
}

.project-detail-note{
  font-size:12.5px; line-height:1.55; color:var(--ink-faint); font-style:italic;
  margin-top:18px; padding-top:16px; border-top:1px solid var(--rule);
}
.project-detail-status{
  font-size:13.5px; color:var(--ink-soft); margin-top:18px; padding-top:16px; border-top:1px solid var(--rule);
}
.project-detail-status span{
  display:inline-block; font-size:11px; letter-spacing:.08em; text-transform:uppercase;
  font-weight:600; color:var(--turquoise); margin-right:8px;
}

.project-detail-thumbs-hint{ font-size:11.5px; color:var(--ink-faint); margin-top:10px; }

.project-specs{ margin-top:32px; padding-top:28px; border-top:1px solid var(--rule); }
.project-specs h4{
  font-family:var(--sans); font-size:12px; letter-spacing:.1em; text-transform:uppercase;
  font-weight:600; color:var(--turquoise); margin:0 0 16px;
}
.project-specs-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:16px; }
.project-specs-grid > div{ background:var(--white); border:1px solid var(--rule); border-radius:12px; padding:14px 16px; }
.project-specs-grid span{
  display:block; font-size:10.5px; letter-spacing:.06em; text-transform:uppercase;
  color:var(--turquoise); font-weight:600; margin-bottom:6px;
}
.project-specs-grid p{ font-size:13.5px; color:var(--ink); line-height:1.4; }

.project-blocks{ display:grid; grid-template-columns:1fr 1fr; gap:20px; margin-top:24px; }
.project-block-card{ background:var(--white); border:1px solid var(--rule); border-radius:14px; padding:20px 22px; }
.project-block-card h5{ font-family:var(--serif); font-size:19px; color:var(--navy); margin:0 0 14px; }
.project-block-card ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:10px; }
.project-block-card li{ font-size:13px; line-height:1.55; color:var(--ink-soft); }
.project-block-card li strong{ color:var(--ink); font-weight:600; }

.project-detail-actions{ display:flex; flex-wrap:wrap; gap:12px; margin-top:26px; }
.project-detail-actions .btn{ height:46px; padding:0 24px; font-size:13.5px; }

.project-detail-close{
  display:flex; align-items:center; gap:8px; margin:28px auto 0;
  background:none; border:none; cursor:pointer;
  font-family:var(--sans); font-size:13px; color:var(--ink-faint);
  transition:color .3s var(--ease);
}
.project-detail-close:hover{ color:var(--navy); }

/* ==========================================================================
   SERVICES
   ========================================================================== */
.service-grid{ display:grid; grid-template-columns:repeat(3, 1fr); gap:24px; }
.service-card{
  display:block; width:100%; text-align:left;
  border:none; cursor:pointer; font-family:var(--sans);
  background:var(--white); border-radius:18px; padding:36px 28px;
  box-shadow:0 1px 0 rgba(20,30,50,.03), 0 18px 40px rgba(20,30,50,.05);
  transition:transform .5s var(--ease), box-shadow .5s var(--ease);
}
.service-card:hover{ transform:translateY(-6px); box-shadow:0 1px 0 rgba(20,30,50,.03), 0 26px 50px rgba(20,30,50,.09); }
.service-icon{
  width:56px; height:56px; border-radius:14px;
  background:linear-gradient(155deg, var(--navy), var(--navy-deep));
  color:var(--turquoise-soft);
  display:flex; align-items:center; justify-content:center;
  margin-bottom:22px;
}
.service-icon svg{ width:28px; height:28px; }
.service-card h3{ font-size:22px; color:var(--ink); margin-bottom:10px; }
.service-card p{ font-size:14.5px; line-height:1.6; color:var(--ink-soft); }
.service-card-cta{
  display:inline-flex; align-items:center; gap:6px; margin-top:16px;
  font-size:13.5px; font-weight:500; color:var(--navy);
}
.service-card-cta .cta-arrow{ transition:transform .3s var(--ease); }
.service-card:hover .service-card-cta .cta-arrow{ transform:translateX(4px); }

/* ---------- proje filtresi ---------- */
.project-filter-bar{
  display:flex; align-items:center; flex-wrap:wrap; gap:14px; margin-top:20px;
}
.project-filter-label{ font-size:13.5px; color:var(--ink-soft); }
.project-filter-label strong{ color:var(--navy); font-weight:600; }
.project-filter-reset{
  display:inline-flex; align-items:center; gap:6px;
  background:none; border:1px solid var(--rule); border-radius:999px;
  padding:7px 16px; font-family:var(--sans); font-size:12.5px; color:var(--ink-soft);
  cursor:pointer; transition:border-color .3s var(--ease), color .3s var(--ease);
}
.project-filter-reset:hover{ border-color:var(--navy); color:var(--navy); }

.project-unit.is-filtered-out{ display:none; }

/* ==========================================================================
   SHOWCASE — sinematik scroll/crossfade (SADECE bu bölümde)
   ========================================================================== */
.showcase{ position:relative; height:340vh; background:var(--charcoal); }
.showcase-sticky{
  position:sticky; top:0; height:100vh; overflow:hidden;
  display:flex; align-items:flex-end;
}
.showcase-media{ position:absolute; inset:0; z-index:0; }
.showcase-img{
  position:absolute; inset:0; width:100%; height:100%; object-fit:cover;
  opacity:0; transition:opacity 1.1s var(--ease);
}
.showcase-img.is-active{ opacity:1; }
.showcase-veil{
  position:absolute; inset:0;
  background:linear-gradient(to top, rgba(10,14,20,.86) 0%, rgba(10,14,20,.15) 45%, rgba(10,14,20,.1) 70%, rgba(10,14,20,.5) 100%);
}
.showcase-copy{
  position:relative; z-index:1; width:100%;
  padding:0 clamp(20px,4vw,56px) clamp(56px,8vw,96px);
}
.showcase-panel{
  max-width:640px; color:var(--white);
  position:absolute; bottom:clamp(56px,8vw,96px); left:clamp(20px,4vw,56px);
  opacity:0; transform:translateY(18px);
  transition:opacity .7s var(--ease), transform .7s var(--ease);
  pointer-events:none;
}
.showcase-panel.is-active{ opacity:1; transform:translateY(0); pointer-events:auto; }
.showcase-panel h2{ font-size:clamp(34px,5vw,58px); line-height:1.05; margin:10px 0 18px; color:var(--white); }
.showcase-panel p{ font-size:16px; line-height:1.65; color:rgba(255,255,255,.82); max-width:520px; }

/* ==========================================================================
   HAKKIMIZDA
   ========================================================================== */
.about{ padding:clamp(80px,10vw,140px) 0; background:var(--stone); }
.about-inner{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(40px,6vw,90px); align-items:center; }

.about-heading{ display:flex; align-items:center; gap:18px; margin-bottom:30px; }
.about-bar{ width:6px; height:44px; border-radius:3px; background:var(--turquoise); flex-shrink:0; }
.about-heading h2{
  font-family:var(--sans); font-weight:600; text-transform:uppercase;
  letter-spacing:.03em; font-size:clamp(28px,3.2vw,40px); color:var(--ink);
}

.about-text{ display:flex; flex-direction:column; gap:16px; max-width:52ch; }
.about-text p{ font-size:15.5px; line-height:1.8; color:var(--ink-soft); }

.about-slogan{
  margin-top:40px; padding-top:26px; border-top:1px solid var(--rule);
  font-family:var(--serif); font-size:clamp(22px,2.4vw,28px); color:var(--navy);
}
.about-slogan em{ font-style:italic; color:var(--turquoise); }

.about-media{
  position:relative;
  border-radius:20px; overflow:hidden; aspect-ratio:4/5;
  box-shadow:0 24px 60px rgba(20,30,50,.14);
  background:var(--stone-deep);
}
.about-media-img{
  position:absolute; inset:0; width:100%; height:100%; object-fit:cover;
  opacity:0; transition:opacity 1.8s var(--ease);
}
.about-media-img.active{ opacity:1; }
.about-media-veil{
  position:absolute; inset:0;
  background:linear-gradient(to top, rgba(14,20,30,.32) 0%, rgba(14,20,30,0) 40%);
}

/* ==========================================================================
   GALLERY
   ========================================================================== */
.gallery-grid{ display:grid; grid-template-columns:repeat(4, 1fr); gap:18px; }
.gallery-item{ border-radius:16px; overflow:hidden; aspect-ratio:3/4; }
.gallery-item img{ width:100%; height:100%; object-fit:cover; transition:transform .8s var(--ease); }
.gallery-item:hover img{ transform:scale(1.08); }

/* ==========================================================================
   CONTACT
   ========================================================================== */
.contact{ position:relative; padding:clamp(90px,11vw,150px) 0; overflow:hidden; }
.contact-bg{ position:absolute; inset:0; z-index:0; }
.contact-bg img{ width:100%; height:100%; object-fit:cover; }
.contact-veil{ position:absolute; inset:0; background:linear-gradient(120deg, rgba(14,33,68,.92) 0%, rgba(14,33,68,.82) 45%, rgba(20,24,30,.7) 100%); }

.contact-inner{
  position:relative; z-index:1;
  display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:start;
}
.contact-copy{ color:var(--white); }
.contact-copy h2{ font-size:clamp(32px,4.6vw,56px); line-height:1.05; margin:10px 0 20px; color:var(--white); }
.contact-desc{ font-size:16px; line-height:1.6; color:rgba(255,255,255,.78); max-width:420px; }
.contact-details{ display:flex; flex-direction:column; gap:18px; margin-top:40px; }
.contact-details span{ display:block; font-size:11.5px; letter-spacing:.1em; text-transform:uppercase; color:var(--turquoise-soft); margin-bottom:4px; }
.contact-details p{ font-size:16px; color:var(--white); }
.contact-details p a{ transition:color .3s var(--ease); }
.contact-details p a:hover{ color:var(--turquoise-soft); }

.contact-buttons{ display:flex; flex-wrap:wrap; gap:12px; margin-top:32px; }

.contact-form{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.18);
  backdrop-filter:blur(16px); -webkit-backdrop-filter:blur(16px);
  border-radius:20px; padding:clamp(24px,3vw,36px);
  display:flex; flex-direction:column; gap:16px;
}
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.contact-form label{ display:flex; flex-direction:column; gap:8px; }
.contact-form label span{ font-size:12.5px; letter-spacing:.04em; color:rgba(255,255,255,.72); }
.contact-form input, .contact-form textarea{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.22);
  border-radius:10px; padding:13px 14px;
  font-family:var(--sans); font-size:14.5px; color:var(--white);
  outline:none; transition:border-color .3s var(--ease), background .3s var(--ease);
}
.contact-form input::placeholder, .contact-form textarea::placeholder{ color:rgba(255,255,255,.4); }
.contact-form input:focus, .contact-form textarea:focus{ border-color:var(--turquoise-soft); background:rgba(255,255,255,.1); }
.contact-form textarea{ resize:vertical; min-height:100px; }
.contact-form .btn{ margin-top:6px; align-self:flex-start; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer{ background:var(--navy-deep); color:rgba(255,255,255,.7); padding:48px 0; }
.footer-inner{
  display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:24px;
}
.footer-mark{ font-family:var(--serif); font-size:22px; color:var(--white); }
.footer-mark em{ color:var(--turquoise-soft); font-style:italic; }
.footer-tag{ font-size:13px; margin-top:6px; color:rgba(255,255,255,.55); }
.footer-links{ display:flex; gap:26px; }
.footer-links a{ font-size:14px; color:rgba(255,255,255,.7); transition:color .3s var(--ease); }
.footer-links a:hover{ color:var(--white); }

.footer-social{ display:flex; flex-wrap:wrap; align-items:center; gap:22px; width:100%; justify-content:center; }
.footer-social a{
  display:inline-flex; align-items:center; gap:6px;
  font-size:13px; color:rgba(255,255,255,.6); transition:color .3s var(--ease);
}
.footer-social a:hover{ color:var(--turquoise-soft); }

.footer-copy{ font-size:12.5px; color:rgba(255,255,255,.45); width:100%; text-align:center; margin-top:8px; }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (min-width:900px){
  .lg-only{ display:inline; }
}

@media (max-width:900px){
  .project-card--wide .project-info{ grid-template-columns:1fr; }
  .service-grid{ grid-template-columns:1fr 1fr; }
  .gallery-grid{ grid-template-columns:1fr 1fr; }
  .contact-inner{ grid-template-columns:1fr; gap:40px; }
  .project-detail-grid{ grid-template-columns:1fr; }
  .about-inner{ grid-template-columns:1fr; gap:44px; }
  .about-media{ aspect-ratio:16/10; order:-1; }
  .project-specs-grid{ grid-template-columns:1fr 1fr; }
  .project-blocks{ grid-template-columns:1fr; }
}

@media (max-width:720px){
  .nav-links, .nav-cta{ display:none; }
  .nav-burger{ display:flex; }

  .project-grid{ grid-template-columns:1fr; }
  .service-grid{ grid-template-columns:1fr; }
  .gallery-grid{ grid-template-columns:1fr 1fr; }

  .showcase{ height:280vh; }
  .showcase-panel{ max-width:calc(100% - 40px); }
  .showcase-panel h2{ font-size:clamp(28px,9vw,42px); }

  .form-row{ grid-template-columns:1fr; }

  .project-specs-grid{ grid-template-columns:1fr; }

  .footer-inner{ flex-direction:column; text-align:center; }
  .footer-links{ flex-wrap:wrap; justify-content:center; }
}

@media (max-width:420px){
  .nav-logo-crop{ width:163px; height:52px; }
  .nav-logo-img{ width:163px; left:-1px; top:-3px; }
  .hero-content{ padding-top:110px; }
  .btn{ height:46px; padding:0 24px; font-size:14px; }
  .project-detail-thumbs .thumb{ width:52px; height:52px; }
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  .reveal, .reveal-on-scroll, .nav-logo, .nav-logo-crop{ animation:none !important; opacity:1 !important; transform:none !important; transition:none !important; }
  .hero-img, .showcase-img, .showcase-panel, .nav-logo-img{ transition:none !important; animation:none !important; transform:none !important; }
}