/* ============================================================
   COBALTO URBANO 4D — Site styles
   Minimal · luxury · cobalt · Barcelona
   Grounded in the T.EN palette (cobalt blue) + elegant serif
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,400&family=Marcellus&family=Hanken+Grotesk:wght@300;400;500;600;700&display=swap');

:root{
  /* Cobalt — deep tone chosen by brand */
  --cobalt:        #0A2A66;
  --cobalt-2:      #143A86;
  --cobalt-bright: #1B49E0;

  /* Neutrals (warm luxury whites + deep ink) */
  --paper:    #FFFFFF;
  --paper-2:  #F6F5F1;   /* warm off-white sections */
  --paper-3:  #ECEBE4;
  --ink:      #15171C;   /* near-black for display */
  --ink-soft: #45474C;   /* body text */
  --muted:    #8C8B86;
  --line:     #E3E1D9;   /* hairlines */
  --line-2:   #D6D4CA;

  /* Tweakable */
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'Hanken Grotesk', Arial, sans-serif;
  --accent:       var(--cobalt);

  /* Scale */
  --page-max: 1320px;
  --gutter: clamp(20px, 5vw, 80px);
  --sec-pad: clamp(64px, 11vw, 168px);
}

*{ box-sizing: border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body{
  margin:0;
  font-family: var(--font-body);
  color: var(--ink-soft);
  background: var(--paper);
  font-size: 17px;
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration: none; }
::selection{ background: var(--cobalt); color:#fff; }

/* ---- Type ---------------------------------------------------- */
h1,h2,h3,h4{
  font-family: var(--font-display);
  color: var(--ink);
  font-weight: 400;
  line-height: 1.04;
  letter-spacing: -0.01em;
  margin:0;
  text-wrap: balance;
}
.display{
  font-size: clamp(48px, 9vw, 132px);
  font-weight: 300;
  letter-spacing: -0.02em;
}
h1{ font-size: clamp(40px, 6.4vw, 92px); font-weight:300; }
h2{ font-size: clamp(32px, 4.6vw, 64px); font-weight:300; }
h3{ font-size: clamp(24px, 2.8vw, 38px); }
h4{ font-size: clamp(20px, 2vw, 26px); }
p{ margin:0 0 1.1em; }
p:last-child{ margin-bottom:0; }

.lead{
  font-size: clamp(19px, 2.1vw, 25px);
  line-height: 1.55;
  color: var(--ink);
  font-weight: 300;
}
.eyebrow{
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin:0 0 22px;
  display:flex; align-items:center; gap:14px;
}
.eyebrow::before{
  content:""; width:34px; height:1px; background: var(--accent); display:inline-block;
}
.eyebrow.center{ justify-content:center; }
.serif-accent{ font-family: var(--font-display); font-style:italic; font-weight:400; }
.muted{ color: var(--muted); }

/* ---- Layout -------------------------------------------------- */
.wrap{ max-width: var(--page-max); margin:0 auto; padding-inline: var(--gutter); }
.section{ padding-block: var(--sec-pad); }
.section.tight{ padding-block: clamp(48px,7vw,96px); }
.bg-soft{ background: var(--paper-2); }
.bg-cobalt{ background: var(--cobalt); color: #EAEFFB; }
.bg-cobalt h1,.bg-cobalt h2,.bg-cobalt h3,.bg-cobalt h4{ color:#fff; }
.bg-cobalt .eyebrow{ color: #9DB6F0; }
.bg-cobalt .eyebrow::before{ background:#9DB6F0; }
.bg-cobalt .muted{ color:#9AAAD0; }
.divider{ height:1px; background: var(--line); border:0; margin:0; }

/* ---- Buttons ------------------------------------------------- */
.btn{
  display:inline-flex; align-items:center; gap:12px;
  font-family: var(--font-body);
  font-size: 13px; font-weight:600; letter-spacing:0.13em; text-transform:uppercase;
  padding:16px 30px;
  border:1px solid var(--cobalt);
  background: var(--cobalt); color:#fff;
  cursor:pointer; transition: all .35s cubic-bezier(.2,.7,.3,1);
  border-radius:0;
}
.btn:hover{ background: var(--cobalt-bright); border-color: var(--cobalt-bright); }
.btn.ghost{ background:transparent; color: var(--cobalt); }
.btn.ghost:hover{ background: var(--cobalt); color:#fff; }
.btn.on-cobalt{ background:#fff; color: var(--cobalt); border-color:#fff; }
.btn.on-cobalt:hover{ background:transparent; color:#fff; }
.link-arrow{
  display:inline-flex; align-items:center; gap:10px;
  font-size:13px; font-weight:600; letter-spacing:0.13em; text-transform:uppercase;
  color: var(--accent); transition:gap .3s ease;
}
.link-arrow svg{ width:16px; height:16px; transition: transform .3s ease; }
.link-arrow:hover{ gap:16px; }

/* ---- Header / Nav -------------------------------------------- */
.site-header{
  position: sticky; top:0; z-index:50;
  background: rgba(255,255,255,.86);
  backdrop-filter: blur(14px);
  border-bottom:1px solid var(--line);
  transition: background .3s ease;
}
.nav{
  max-width: var(--page-max); margin:0 auto;
  padding: 0 var(--gutter);
  height:78px; display:flex; align-items:center; justify-content:space-between; gap:32px;
}
.brand{ flex:0 0 auto; }
.nav-links{ flex:0 1 auto; }
.brand{ display:flex; align-items:center; gap:12px; line-height:1; }
.brand-icon{ height:38px; width:auto; display:block; flex:0 0 auto; }
.brand .mark{
  font-family: var(--font-display); font-weight:500;
  font-size:24px; letter-spacing:0.02em; color: var(--cobalt);
}
.brand .mark b{ font-weight:500; color: var(--ink); }
.brand .tag{
  font-family: var(--font-body); font-size:9px; font-weight:600;
  letter-spacing:0.28em; text-transform:uppercase; color: var(--muted);
  margin-left:12px; padding-left:12px; border-left:1px solid var(--line-2);
}
.nav-links{ display:flex; align-items:center; gap:38px; list-style:none; margin:0; padding:0; }
.nav-links a{
  font-size:13px; font-weight:500; letter-spacing:0.06em;
  color: var(--ink-soft); position:relative; padding:6px 0;
  transition: color .25s ease;
}
.nav-links a::after{
  content:""; position:absolute; left:0; bottom:0; height:1px; width:0;
  background: var(--cobalt); transition: width .3s ease;
}
.nav-links a:hover{ color: var(--cobalt); }
.nav-links a:hover::after, .nav-links a.active::after{ width:100%; }
.nav-links a.active{ color: var(--cobalt); }
.nav-right{ display:flex; align-items:center; gap:26px; }

.lang-switch{ display:flex; align-items:center; font-size:12px; font-weight:600; letter-spacing:0.08em; }
.lang-switch button{
  background:none; border:0; cursor:pointer; padding:4px 6px; color: var(--muted);
  font: inherit; letter-spacing:inherit; transition: color .2s ease;
}
.lang-switch button.active{ color: var(--cobalt); }
.lang-switch .sep{ color: var(--line-2); }

.nav-toggle{ display:none; background:none; border:0; cursor:pointer; padding:8px; }
.nav-toggle span{ display:block; width:24px; height:1.5px; background: var(--ink); margin:5px 0; transition:.3s; }

/* hide brand tag in the tight band before hamburger takes over */
@media (max-width: 1180px){ .brand .tag{ display:none; } }

/* mobile nav */
@media (max-width: 1024px){
  .nav-links, .nav-right .btn{ display:none; }
  .nav-toggle{ display:block; }
  .mobile-menu{
    position:fixed; inset:78px 0 0; background: var(--paper);
    transform: translateY(-12px); opacity:0; pointer-events:none;
    transition: .35s ease; z-index:49; padding: 40px var(--gutter);
    display:flex; flex-direction:column; gap:6px; overflow:auto;
  }
  .mobile-menu.open{ transform:none; opacity:1; pointer-events:auto; }
  .mobile-menu a{
    font-family: var(--font-display); font-size:34px; font-weight:300; color: var(--ink);
    padding:14px 0; border-bottom:1px solid var(--line);
  }
  .mobile-menu a.active{ color: var(--cobalt); }
}
.mobile-menu{ display:none; }
@media (max-width:1024px){ .mobile-menu{ display:flex; } }

/* ---- Hero ---------------------------------------------------- */
.hero{ position:relative; padding-top: clamp(56px,10vw,128px); padding-bottom: clamp(56px,9vw,120px); overflow:hidden; }
.hero .wrap{ position:relative; z-index:2; }
.hero-grid{ display:grid; grid-template-columns: 1.15fr .85fr; gap: clamp(32px,5vw,80px); align-items:end; }
.hero-eyebrow{ margin-bottom:30px; }
.hero h1{ margin-bottom:28px; }
.hero .place{
  font-family: var(--font-body); font-size:13px; letter-spacing:0.22em; text-transform:uppercase;
  color: var(--muted); display:flex; gap:14px; align-items:center;
}
.hero-visual{ width:100%; aspect-ratio: 4/5; }
@media (max-width: 880px){
  .hero-grid{ grid-template-columns:1fr; gap:40px; }
  .hero-visual{ aspect-ratio: 4/3; }
}

/* ---- Image slots / figures ---------------------------------- */
image-slot{ width:100%; height:100%; --is-bg: var(--paper-3); }
.figure{ position:relative; }
.figure .cap{
  font-size:12px; letter-spacing:0.14em; text-transform:uppercase; color:var(--muted);
  margin-top:14px;
}
/* Project gallery: portrait lead render + stacked pair */
.gallery-lead{ display:grid; grid-template-columns: 0.92fr 1.08fr; gap: clamp(16px,2vw,24px); align-items:start; }
.gallery-stack{ display:flex; flex-direction:column; gap: clamp(16px,2vw,24px); height:100%; }
.gallery-stack .figure{ flex:1; display:flex; flex-direction:column; }
.gallery-stack .figure > div{ flex:1; }
@media (max-width: 760px){
  .gallery-lead{ grid-template-columns:1fr; gap:24px; }
}

/* ---- Value / feature columns -------------------------------- */
.cols{ display:grid; gap: clamp(28px,4vw,56px); }
.cols.c2{ grid-template-columns: repeat(2,1fr); }
.cols.c3{ grid-template-columns: repeat(3,1fr); }
.cols.c4{ grid-template-columns: repeat(4,1fr); }
@media (max-width: 860px){ .cols.c3,.cols.c4{ grid-template-columns:1fr 1fr; } }
@media (max-width: 560px){ .cols.c2,.cols.c3,.cols.c4{ grid-template-columns:1fr; } }

.feature .num{ font-family:var(--font-display); font-size:20px; color:var(--cobalt); display:block; margin-bottom:18px; }
.feature h4{ margin-bottom:12px; }
.feature p{ font-size:16px; }

.svc-list li{ padding:14px 0; border-bottom:1px solid var(--line); font-size:16px; color:var(--ink); display:flex; align-items:center; gap:14px; }
.svc-icon{ width:58px; height:58px; color:var(--cobalt); display:block; }
.svc-list li::before{ content:""; width:6px; height:6px; background:var(--cobalt); flex:0 0 auto; }
.svc-list li:last-child{ border-bottom:0; }

.split{ display:grid; grid-template-columns: 1fr 1fr; gap: clamp(36px,6vw,96px); align-items:center; }
.split.media-left{ direction:rtl; }
.split.media-left > *{ direction:ltr; }
@media (max-width: 880px){ .split{ grid-template-columns:1fr; gap:40px; } .split.media-left{ direction:ltr; } }

/* ---- Stats -------------------------------------------------- */
.stats{ display:grid; grid-template-columns: repeat(4,1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
.stats .stat{ background:var(--paper); padding:36px clamp(20px,3vw,40px); }
.bg-cobalt .stats, .bg-cobalt .stats .stat{ background:transparent; }
.bg-cobalt .stats{ border-color: rgba(255,255,255,.18); gap:1px; background:rgba(255,255,255,.18); }
.bg-cobalt .stats .stat{ background: var(--cobalt); }
.stat .v{ font-family:var(--font-display); font-size: clamp(40px,5vw,64px); font-weight:300; color: var(--cobalt); line-height:1; }
.bg-cobalt .stat .v{ color:#fff; }
.stat .l{ font-size:12px; letter-spacing:0.16em; text-transform:uppercase; color:var(--muted); margin-top:14px; }
@media (max-width:780px){ .stats{ grid-template-columns:1fr 1fr; } }

/* ---- Project cards ------------------------------------------ */
.project-card{ display:block; group:project; }
.project-card .media{ position:relative; aspect-ratio: 3/2.1; overflow:hidden; background:var(--paper-3); }
.project-card .media image-slot{ transition: transform .9s cubic-bezier(.2,.7,.3,1); }
.project-card:hover .media image-slot{ transform: scale(1.04); }
.project-card .meta{ display:flex; justify-content:space-between; align-items:flex-start; padding-top:22px; gap:20px; }
.project-card h3{ margin-bottom:8px; }
.project-card .loc{ font-size:14px; color:var(--muted); letter-spacing:0.04em; }
.status{
  display:inline-flex; align-items:center; gap:8px;
  font-size:11px; font-weight:600; letter-spacing:0.14em; text-transform:uppercase;
  padding:7px 14px; border:1px solid var(--line-2); color:var(--ink-soft); white-space:nowrap;
}
.status .dot{ width:7px; height:7px; border-radius:50%; background: var(--muted); }
.status.ongoing .dot{ background: var(--cobalt-bright); box-shadow:0 0 0 3px rgba(27,73,224,.18); }
.status.done .dot{ background: #2E9E6B; }

/* ---- Typology cards ----------------------------------------- */
.typo-card{ border:1px solid var(--line); background:var(--paper); padding:0; display:flex; flex-direction:column; }
.typo-card .top{ padding: 32px clamp(24px,3vw,40px) 28px; border-bottom:1px solid var(--line); }
.typo-card .code{ font-size:12px; letter-spacing:0.18em; text-transform:uppercase; color:var(--cobalt); font-weight:600; }
.typo-card h3{ margin:14px 0 6px; }
.typo-card .floor{ font-size:14px; color:var(--muted); }
.typo-card .specs{ display:grid; grid-template-columns:repeat(3,1fr); }
.typo-card .specs div{ padding:22px clamp(16px,2vw,24px); border-right:1px solid var(--line); }
.typo-card .specs div:last-child{ border-right:0; }
.typo-card .specs .n{ font-family:var(--font-display); font-size:32px; font-weight:300; color:var(--ink); line-height:1; }
.typo-card .specs .k{ font-size:11px; letter-spacing:0.12em; text-transform:uppercase; color:var(--muted); margin-top:8px; }
.typo-card .rooms{ padding: 24px clamp(24px,3vw,40px); border-top:1px solid var(--line); font-size:14.5px; }
.typo-card .rooms .row{ display:flex; justify-content:space-between; padding:7px 0; border-bottom:1px dotted var(--line); }
.typo-card .rooms .row:last-child{ border-bottom:0; }
.typo-card .rooms .row span:last-child{ color:var(--muted); font-variant-numeric:tabular-nums; }
.typo-card .foot{ margin-top:auto; padding: 24px clamp(24px,3vw,40px); display:flex; justify-content:space-between; align-items:center; background:var(--paper-2); }
.typo-card .price{ font-family:var(--font-display); font-size:26px; color:var(--cobalt); }
.typo-card .price small{ font-family:var(--font-body); font-size:11px; letter-spacing:0.14em; text-transform:uppercase; color:var(--muted); display:block; }

/* ---- Spec list (project detail) ----------------------------- */
.specsheet{ border-top:1px solid var(--line); }
.specsheet .row{ display:grid; grid-template-columns: 220px 1fr; gap:24px; padding:20px 0; border-bottom:1px solid var(--line); }
.specsheet .row .k{ font-size:12px; letter-spacing:0.16em; text-transform:uppercase; color:var(--muted); padding-top:3px; }
.specsheet .row .v{ font-size:17px; color:var(--ink); }
@media (max-width:620px){ .specsheet .row{ grid-template-columns:1fr; gap:6px; } }

/* ---- Contact / form ----------------------------------------- */
.form{ display:grid; gap:26px; }
.field{ display:flex; flex-direction:column; gap:10px; }
.field label{ font-size:12px; letter-spacing:0.16em; text-transform:uppercase; color:var(--muted); }
.field input, .field textarea, .field select{
  font-family:var(--font-body); font-size:16px; color:var(--ink);
  border:0; border-bottom:1px solid var(--line-2); background:transparent;
  padding:12px 2px; transition:border-color .3s ease;
}
.field input:focus, .field textarea:focus, .field select:focus{ outline:none; border-color: var(--cobalt); }
.field.invalid input, .field.invalid textarea, .field.invalid select{ border-color:#C0392B; }
.field.invalid label{ color:#C0392B; }
.field textarea{ resize:vertical; min-height:120px; }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:26px; }
@media (max-width:560px){ .form-row{ grid-template-columns:1fr; } }
.contact-grid{ display:grid; grid-template-columns: 1.1fr .9fr; gap: clamp(40px,7vw,110px); }
@media (max-width:880px){ .contact-grid{ grid-template-columns:1fr; gap:56px; } }
.contact-line{ padding:20px 0; border-bottom:1px solid var(--line); }
.contact-line .k{ font-size:12px; letter-spacing:0.16em; text-transform:uppercase; color:var(--muted); margin-bottom:8px; }
.contact-line .v{ font-size:19px; color:var(--ink); }
.contact-line a:hover{ color: var(--cobalt); }
.form-note{ font-size:13px; color:var(--muted); }

/* ---- Footer -------------------------------------------------- */
.site-footer{ background: var(--ink); color:#A9ABB2; padding-block: clamp(56px,8vw,96px) 40px; }
.site-footer h4{ color:#fff; }
.footer-top{ display:grid; grid-template-columns: 1.4fr 1fr 1fr; gap:48px; padding-bottom:56px; border-bottom:1px solid rgba(255,255,255,.12); }
@media (max-width:780px){ .footer-top{ grid-template-columns:1fr; gap:36px; } }
.footer-brand .mark{ font-family:var(--font-display); font-size:30px; color:#fff; font-weight:300; letter-spacing:.02em; display:flex; align-items:center; gap:14px; }
.footer-logo{ height:46px; width:auto; display:block; }
.footer-brand p{ font-size:15px; max-width:38ch; margin-top:18px; }
.footer-col .h{ font-size:12px; letter-spacing:0.18em; text-transform:uppercase; color:#6E7079; margin-bottom:20px; }
.footer-col a, .footer-col p{ display:block; font-size:15px; color:#C8C9CE; padding:5px 0; margin:0; }
.footer-col a:hover{ color:#fff; }
.footer-bottom{ display:flex; justify-content:space-between; gap:20px; flex-wrap:wrap; padding-top:30px; font-size:12.5px; letter-spacing:0.04em; color:#6E7079; }

/* ---- Reveal animation --------------------------------------- */
.reveal{ opacity:0; transform: translateY(22px); transition: opacity .9s ease, transform .9s cubic-bezier(.2,.7,.3,1); }
.reveal.in{ opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce){ .reveal{ opacity:1; transform:none; transition:none; } html{ scroll-behavior:auto; } }

/* ---- Tweaks panel ------------------------------------------- */
#tweaks-panel{
  position:fixed; right:20px; bottom:20px; z-index:1000;
  width:300px; background:#fff; border:1px solid var(--line);
  box-shadow: 0 18px 60px rgba(10,42,102,.18); padding:22px; display:none;
  font-family: var(--font-body);
}
#tweaks-panel.open{ display:block; }
#tweaks-panel .tw-head{ display:flex; justify-content:space-between; align-items:center; margin-bottom:18px; }
#tweaks-panel .tw-head h5{ margin:0; font-family:var(--font-display); font-size:22px; font-weight:400; color:var(--ink); }
#tweaks-panel .tw-x{ background:none; border:0; cursor:pointer; font-size:20px; color:var(--muted); line-height:1; }
#tweaks-panel .tw-group{ margin-bottom:20px; }
#tweaks-panel .tw-group:last-child{ margin-bottom:0; }
#tweaks-panel .tw-label{ font-size:11px; letter-spacing:0.14em; text-transform:uppercase; color:var(--muted); margin-bottom:10px; }
#tweaks-panel .tw-row{ display:flex; gap:8px; flex-wrap:wrap; }
#tweaks-panel .sw{ width:34px; height:34px; border-radius:50%; cursor:pointer; border:2px solid transparent; outline:1px solid var(--line); }
#tweaks-panel .sw.active{ border-color:#fff; outline:2px solid var(--ink); }
#tweaks-panel .opt{ flex:1; min-width:70px; padding:9px 8px; border:1px solid var(--line-2); background:#fff; cursor:pointer; font-size:13px; color:var(--ink-soft); text-align:center; transition:.2s; }
#tweaks-panel .opt.active{ background:var(--cobalt); color:#fff; border-color:var(--cobalt); }
@media (max-width:520px){ #tweaks-panel{ left:12px; right:12px; width:auto; } }