/* 231 Interactive: one dark, starry theme that matches the logo */
:root{
  --bg:#070b16;            /* night sky */
  --panel:rgba(16,22,40,.72);
  --line:rgba(170,190,230,.16);
  --text:#e9e6df;          /* warm white, like the logo numerals */
  --muted:#a3abbf;
  --accent:#f3e3c3;        /* soft starlight */
  --blue:#8fa8d8;
  --serif:"Cormorant Garamond",Georgia,serif;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:400 17px/1.65 var(--sans);-webkit-font-smoothing:antialiased}
a{color:inherit}
img{max-width:100%;height:auto;display:block}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* the star field: drawn with CSS gradients, no image files */
.sky{position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(1px 1px at 12% 18%,#fff 60%,transparent),radial-gradient(1px 1px at 27% 62%,#dfe8ff 60%,transparent),
    radial-gradient(1.5px 1.5px at 44% 30%,#fff 60%,transparent),radial-gradient(1px 1px at 63% 78%,#fff 60%,transparent),
    radial-gradient(1px 1px at 78% 22%,#e8eeff 60%,transparent),radial-gradient(1.5px 1.5px at 88% 55%,#fff 60%,transparent),
    radial-gradient(1px 1px at 6% 82%,#fff 60%,transparent),radial-gradient(1px 1px at 52% 8%,#fff 60%,transparent),
    radial-gradient(1px 1px at 35% 92%,#dfe8ff 60%,transparent),radial-gradient(1px 1px at 95% 88%,#fff 60%,transparent),
    radial-gradient(ellipse 60% 40% at 70% 10%,rgba(60,80,140,.22),transparent 70%),
    radial-gradient(ellipse 50% 40% at 15% 70%,rgba(40,60,120,.18),transparent 70%),
    var(--bg);
  animation:twinkle 6s ease-in-out infinite alternate}
@keyframes twinkle{from{opacity:.85}to{opacity:1}}
@media (prefers-reduced-motion:reduce){.sky{animation:none}html{scroll-behavior:auto}}

/* header */
.top{position:sticky;top:0;z-index:5;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px clamp(16px,4vw,40px);background:rgba(7,11,22,.78);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.brand{font:600 15px var(--sans);letter-spacing:.18em;text-transform:uppercase;text-decoration:none;color:var(--muted)}
.brand .num{font:600 24px var(--serif);letter-spacing:0;color:var(--text);margin-right:4px}
.top nav{display:flex;gap:clamp(12px,3vw,28px)}
.top nav a{text-decoration:none;color:var(--muted);font-size:15px}
.top nav a:hover,.top nav a:focus-visible{color:var(--text)}

/* hero */
.hero{max-width:1100px;margin:0 auto;padding:clamp(24px,5vw,56px) 16px 40px;text-align:center}
.logo{width:100%;max-width:960px;margin:0 auto;   /* transparent PNG/WebP: the site's own sky shows through */
  -webkit-mask-image:linear-gradient(to bottom,transparent 0,#000 14%,#000 92%,transparent 100%);mask-image:linear-gradient(to bottom,transparent 0,#000 14%,#000 92%,transparent 100%)}   /* soften where the star streaks meet the image edge */
.tagline{font:500 clamp(22px,3.4vw,32px)/1.3 var(--serif);color:var(--accent);margin:8px 0 26px}
.cta{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}

/* buttons */
.btn{display:inline-block;padding:12px 22px;border-radius:999px;background:var(--accent);color:#111522;font:600 15px var(--sans);
  text-decoration:none;border:1px solid var(--accent);cursor:pointer;transition:transform .15s,box-shadow .15s}
.btn:hover,.btn:focus-visible{transform:translateY(-1px);box-shadow:0 0 22px rgba(243,227,195,.35)}
.btn.ghost{background:transparent;color:var(--accent)}

/* sections */
.section{max-width:1100px;margin:0 auto;padding:56px 16px}
h2{font:600 clamp(32px,4.6vw,46px)/1.1 var(--serif);margin:0 0 10px;letter-spacing:.01em}
.lead{color:var(--muted);max-width:640px;margin:0 0 28px}

/* project cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:22px 22px 18px;position:relative}
.card h3{font:600 28px/1.15 var(--serif);margin:12px 0 2px}
.kind{color:var(--blue);font-size:14px;margin:0 0 10px;letter-spacing:.02em}
.card p{margin:0 0 10px}
.note{font-size:14px;color:var(--muted)}
.link{color:var(--accent);text-underline-offset:3px}
.status{display:inline-block;font:600 11px var(--sans);letter-spacing:.12em;text-transform:uppercase;padding:4px 10px;border-radius:999px;border:1px solid}
.status.building{color:#9be3b0;border-color:rgba(155,227,176,.45)}
.status.early{color:#f2c879;border-color:rgba(242,200,121,.45)}
.status.ongoing{color:#a9c2ff;border-color:rgba(169,194,255,.45)}
.status.open{color:var(--accent);border-color:rgba(243,227,195,.45)}

/* about */
.about p{max-width:720px}
.about strong{color:var(--accent);font-weight:600}

/* contact form */
.contact{max-width:640px;display:grid;gap:14px}
.contact .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.contact label{display:grid;gap:6px;font-size:14px;color:var(--muted)}
.contact input,.contact select,.contact textarea{width:100%;padding:12px 14px;border-radius:10px;border:1px solid var(--line);
  background:rgba(10,15,30,.85);color:var(--text);font:400 16px var(--sans)}
.contact input:focus,.contact select:focus,.contact textarea:focus{outline:2px solid var(--blue);outline-offset:1px}
.contact .btn{justify-self:start}
.hp{position:absolute;left:-9999px}
.fine{font-size:13px;color:var(--muted);margin:0}

/* footer */
.foot{border-top:1px solid var(--line);text-align:center;padding:26px 16px;color:var(--muted);font-size:14px}

@media (max-width:560px){
  body{font-size:16px}
  .brand{letter-spacing:.12em}
  .contact .row{grid-template-columns:1fr}
}