/* ===== Alfa Facade — shared stylesheet ===== */
:root{
  --bg:#ffffff;
  --panel:#f4f6f7;
  --panel-2:#eceff1;
  --line:#e1e6e9;
  --line-strong:#cdd5da;
  --navy:#1c2b38;
  --steel:#3d5568;
  --glass:#0f8fae;
  --glass-dark:#0b6f88;
  --bronze:#a97328;
  --text:#1b232b;
  --text-dim:#5a6b76;
  --text-dimmer:#8b99a2;
  --radius:2px;
  --maxw:1180px;
}
*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:'Inter', sans-serif;
  line-height:1.6;
  overflow-x:hidden;
}
h1,h2,h3,h4{
  font-family:'Space Grotesk', sans-serif;
  font-weight:600;
  letter-spacing:-0.01em;
  color:var(--navy);
}
.mono{ font-family:'IBM Plex Mono', monospace; }
a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }
.wrap{ max-width:var(--maxw); margin:0 auto; padding:0 28px; }
section{ position:relative; }
::selection{ background:var(--glass); color:#fff; }

/* ---------- mullion grid pattern ---------- */
.mullion-bg{
  position:absolute; inset:0;
  background-image:
    linear-gradient(90deg, rgba(15,143,174,0.08) 1px, transparent 1px),
    linear-gradient(rgba(15,143,174,0.08) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events:none;
}
.mullion-fade{
  position:absolute; inset:0;
  background:radial-gradient(ellipse at 25% 15%, rgba(15,143,174,0.08), transparent 55%);
  pointer-events:none;
}

/* ---------- header ---------- */
header{
  position:fixed; top:0; left:0; right:0; z-index:100;
  background:rgba(255,255,255,0.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{
  max-width:var(--maxw); margin:0 auto; padding:16px 28px;
  display:flex; align-items:center; justify-content:space-between;
}
.brand{ display:flex; align-items:center; gap:10px; }
.brand-mark{
  width:34px; height:34px; border:1.5px solid var(--glass);
  position:relative; flex-shrink:0;
}
.brand-mark::before, .brand-mark::after{
  content:''; position:absolute; background:var(--glass);
}
.brand-mark::before{ top:50%; left:0; right:0; height:1px; transform:translateY(-50%); }
.brand-mark::after{ left:50%; top:0; bottom:0; width:1px; transform:translateX(-50%); }
.brand-name{ font-family:'Space Grotesk',sans-serif; font-size:18px; font-weight:700; letter-spacing:0.01em; color:var(--navy);}
.brand-name span{ color:var(--glass); }
.brand-sub{ font-size:10px; color:var(--text-dimmer); letter-spacing:0.14em; text-transform:uppercase; margin-top:1px; }
nav.links{ display:flex; gap:32px; align-items:center; }
nav.links a{
  font-size:13px; letter-spacing:0.03em; color:var(--text-dim);
  text-transform:uppercase; transition:color .2s;
}
nav.links a:hover, nav.links a.active{ color:var(--glass); }
.nav-cta{
  border:1px solid var(--glass); color:var(--glass) !important;
  padding:9px 18px; font-size:12px !important;
}
.nav-cta:hover{ background:var(--glass); color:#fff !important; }
.burger{ display:none; flex-direction:column; gap:5px; cursor:pointer; background:none; border:none; padding:6px; }
.burger span{ width:22px; height:2px; background:var(--navy); display:block; }
.mobile-menu{
  display:none; flex-direction:column; gap:0;
  background:var(--panel); border-top:1px solid var(--line);
}
.mobile-menu a{
  padding:16px 28px; border-bottom:1px solid var(--line);
  font-size:14px; text-transform:uppercase; letter-spacing:0.03em; color:var(--text-dim);
}

/* ---------- page header banner (inner pages) ---------- */
.page-banner{
  padding:150px 0 60px; border-bottom:1px solid var(--line);
  position:relative; overflow:hidden;
}
.page-banner h1{ font-size:clamp(2rem,5vw,3.2rem); max-width:760px; }
.page-banner p.lead{ color:var(--text-dim); font-size:16.5px; max-width:560px; margin-top:16px; }
.crumb{
  font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--glass);
  letter-spacing:0.08em; text-transform:uppercase; margin-bottom:22px; display:inline-flex; align-items:center; gap:10px;
}
.crumb::before{ content:''; width:26px; height:1px; background:var(--glass); }

/* ---------- hero (home) ---------- */
.hero{ padding:170px 0 90px; position:relative; overflow:hidden; border-bottom:1px solid var(--line); }
.eyebrow{
  display:inline-flex; align-items:center; gap:10px;
  font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--glass);
  letter-spacing:0.08em; text-transform:uppercase; margin-bottom:26px;
}
.eyebrow::before{ content:''; width:26px; height:1px; background:var(--glass); }
.hero h1{ font-size:clamp(2.4rem, 6vw, 4.6rem); line-height:1.05; max-width:820px; margin-bottom:26px; }
.hero h1 em{ font-style:normal; color:var(--glass); }
.hero p.lead{ font-size:18px; color:var(--text-dim); max-width:560px; margin-bottom:40px; }
.hero-ctas{ display:flex; gap:16px; flex-wrap:wrap; margin-bottom:70px; }
.btn{
  display:inline-block; padding:15px 30px; font-size:13px;
  letter-spacing:0.05em; text-transform:uppercase; font-weight:600;
  border-radius:var(--radius); transition:all .2s; cursor:pointer; border:none;
}
.btn-solid{ background:var(--glass); color:#fff; }
.btn-solid:hover{ background:var(--glass-dark); }
.btn-outline{ border:1px solid var(--line-strong); color:var(--navy); background:transparent; }
.btn-outline:hover{ border-color:var(--glass); color:var(--glass); }

.hero-stats{ display:grid; grid-template-columns:repeat(4,1fr); gap:0; border-top:1px solid var(--line); }
.hero-stats div{ padding:26px 24px 0; border-left:1px solid var(--line); }
.hero-stats div:first-child{ border-left:none; padding-left:0; }
.stat-num{ font-family:'Space Grotesk',sans-serif; font-size:clamp(1.6rem,3.4vw,2.4rem); font-weight:700; color:var(--glass); }
.stat-label{ font-size:12px; color:var(--text-dim); margin-top:6px; text-transform:uppercase; letter-spacing:0.04em; }

/* ---------- section heading pattern ---------- */
.sec-head{ margin-bottom:56px; max-width:640px; }
.sec-tag{
  font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--bronze);
  letter-spacing:0.1em; text-transform:uppercase; margin-bottom:14px; display:block;
}
.sec-head h2{ font-size:clamp(1.8rem,3.6vw,2.6rem); margin-bottom:14px; }
.sec-head p{ color:var(--text-dim); font-size:16px; }

section.pad{ padding:100px 0; }
.panel-bg{ background:var(--panel); }

/* ---------- about ---------- */
.about-grid{ display:grid; grid-template-columns:1.1fr 0.9fr; gap:70px; align-items:start; }
.about-grid p{ color:var(--text-dim); margin-bottom:18px; font-size:15.5px; }
.values-list{ display:flex; flex-direction:column; gap:0; border-top:1px solid var(--line); }
.value-row{ display:grid; grid-template-columns:70px 1fr; gap:20px; padding:22px 0; border-bottom:1px solid var(--line); }
.value-num{ font-family:'IBM Plex Mono',monospace; color:var(--glass-dark); font-size:13px; padding-top:2px; }
.value-row h4{ font-size:16px; margin-bottom:6px; color:var(--navy); }
.value-row p{ font-size:14px; color:var(--text-dim); }

/* ---------- services ---------- */
.services-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
.service-card{ background:var(--bg); padding:34px 26px; }
.service-num{ font-family:'IBM Plex Mono',monospace; color:var(--glass); font-size:13px; margin-bottom:24px; display:block; }
.service-card h3{ font-size:17px; margin-bottom:12px; line-height:1.3; }
.service-card p{ font-size:13.5px; color:var(--text-dim); }

.service-block{ display:grid; grid-template-columns:110px 1fr; gap:28px; padding:40px 0; border-bottom:1px solid var(--line); }
.service-block:first-child{ border-top:1px solid var(--line); }
.service-block .snum{ font-family:'IBM Plex Mono',monospace; font-size:14px; color:var(--glass); }
.service-block h3{ font-size:22px; margin-bottom:12px; }
.service-block p{ color:var(--text-dim); font-size:15px; max-width:640px; }
.service-block ul{ margin-top:16px; padding-left:18px; color:var(--text-dim); font-size:14.5px; }
.service-block li{ margin-bottom:6px; }

/* ---------- timeline / decades ---------- */
.decade-strip{ display:flex; border-top:1px solid var(--line); border-bottom:1px solid var(--line); overflow-x:auto; }
.decade-strip .d{ flex:1; min-width:150px; padding:26px 24px; border-left:1px solid var(--line); cursor:pointer; transition:background .2s; }
.decade-strip .d:first-child{ border-left:none; }
.decade-strip .d:hover, .decade-strip .d.active{ background:var(--panel); }
.decade-strip .d.active{ box-shadow: inset 0 -2px 0 var(--glass); }
.decade-strip .yrs{ font-family:'Space Grotesk',sans-serif; font-weight:700; font-size:22px; color:var(--navy); }
.decade-strip .ct{ font-size:12px; color:var(--text-dim); margin-top:4px; }

/* ---------- filters ---------- */
.filter-bar{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom:44px; }
.chip{
  padding:9px 18px; border:1px solid var(--line-strong); font-size:12.5px;
  letter-spacing:0.02em; cursor:pointer; color:var(--text-dim); background:transparent;
  font-family:'IBM Plex Mono',monospace; transition:all .15s;
}
.chip:hover{ border-color:var(--glass); color:var(--navy); }
.chip.active{ background:var(--glass); color:#fff; border-color:var(--glass); }

/* ---------- project cards ---------- */
.proj-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
.proj-card{ background:var(--bg); padding:28px 24px; display:flex; flex-direction:column; min-height:270px; }
.proj-top{ display:flex; justify-content:space-between; align-items:flex-start; margin-bottom:18px; }
.proj-year{ font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--bronze); }
.proj-tag{
  font-family:'IBM Plex Mono',monospace; font-size:10px; color:var(--glass-dark);
  border:1px solid var(--glass); padding:3px 8px; text-transform:uppercase;
}
.proj-card h4{ font-size:16.5px; margin-bottom:6px; line-height:1.3; color:var(--navy);}
.proj-loc{ font-size:12.5px; color:var(--text-dim); margin-bottom:16px; }
.proj-meta{ margin-top:auto; padding-top:16px; border-top:1px solid var(--line); display:grid; grid-template-columns:1fr 1fr; gap:10px 14px; }
.proj-meta div span{ display:block; }
.meta-label{ font-size:10px; color:var(--text-dimmer); text-transform:uppercase; letter-spacing:0.05em; margin-bottom:3px; }
.meta-val{ font-family:'IBM Plex Mono',monospace; font-size:12.5px; color:var(--navy); }
.proj-arch{ font-size:12px; color:var(--text-dim); margin-top:14px; }
.proj-arch b{ color:var(--text-dim); font-weight:500; }
.load-more-wrap{ text-align:center; margin-top:48px; }

/* ---------- callout ---------- */
.callout{
  border:1px solid var(--line); padding:56px; position:relative;
  background:var(--panel);
}
.callout::before{ content:''; position:absolute; top:0; left:0; width:40px; height:2px; background:var(--glass); }
.callout h3{ font-size:24px; margin-bottom:20px; max-width:640px; }
.callout p{ color:var(--text-dim); max-width:640px; margin-bottom:28px; font-size:15px; }
.sig{ font-family:'Space Grotesk',sans-serif; font-style:italic; color:var(--navy); font-size:16px; }
.sig-role{ font-size:12px; color:var(--text-dim); margin-top:4px; }

/* ---------- contact page ---------- */
.contact-layout{ display:grid; grid-template-columns:1fr 1fr; gap:70px; }
.info-block{ margin-bottom:34px; }
.info-block h4{ font-size:12px; text-transform:uppercase; letter-spacing:0.08em; color:var(--text-dimmer); margin-bottom:14px; }
.info-block p, .info-block a{ color:var(--text-dim); font-size:15px; margin-bottom:8px; display:block; }
.info-block a:hover{ color:var(--glass); }
.form-field{ margin-bottom:20px; }
.form-field label{ display:block; font-size:12px; text-transform:uppercase; letter-spacing:0.05em; color:var(--text-dimmer); margin-bottom:8px; }
.form-field input, .form-field textarea{
  width:100%; border:1px solid var(--line-strong); background:var(--panel);
  padding:13px 14px; font-family:'Inter',sans-serif; font-size:14.5px; color:var(--text);
}
.form-field input:focus, .form-field textarea:focus{ outline:none; border-color:var(--glass); }
.form-field textarea{ resize:vertical; min-height:120px; }

/* ---------- footer ---------- */
footer{ border-top:1px solid var(--line); padding:80px 0 0; background:var(--panel); }
.contact-grid{ display:grid; grid-template-columns:1fr 1fr 1fr; gap:50px; padding-bottom:60px; border-bottom:1px solid var(--line); }
.contact-grid h4{ font-size:12px; text-transform:uppercase; letter-spacing:0.08em; color:var(--text-dimmer); margin-bottom:18px; }
.contact-grid p, .contact-grid a{ color:var(--text-dim); font-size:14.5px; margin-bottom:10px; display:block; }
.contact-grid a:hover{ color:var(--glass); }
.foot-bottom{ display:flex; justify-content:space-between; align-items:center; padding:26px 0; font-size:12px; color:var(--text-dimmer); flex-wrap:wrap; gap:10px; }

/* ---------- responsive ---------- */
@media (max-width: 860px){
  nav.links{ display:none; }
  .burger{ display:flex; }
  .about-grid{ grid-template-columns:1fr; gap:40px; }
  .services-grid{ grid-template-columns:repeat(2,1fr); }
  .proj-grid{ grid-template-columns:repeat(2,1fr); }
  .hero-stats{ grid-template-columns:repeat(2,1fr); row-gap:24px; }
  .hero-stats div:nth-child(3){ border-left:none; }
  .contact-grid{ grid-template-columns:1fr; gap:34px; }
  .contact-layout{ grid-template-columns:1fr; gap:40px; }
  .callout{ padding:36px 24px; }
  .service-block{ grid-template-columns:1fr; gap:10px; }
}
@media (max-width: 600px){
  .wrap{ padding:0 20px; }
  .hero{ padding:140px 0 60px; }
  .page-banner{ padding:130px 0 44px; }
  .proj-grid{ grid-template-columns:1fr; }
  .services-grid{ grid-template-columns:1fr; }
  section.pad{ padding:64px 0; }
  .hero-stats{ grid-template-columns:repeat(2,1fr); }
  .decade-strip{ flex-wrap:nowrap; }
}
style.css
Displaying style.css.