/* ===== Concrete Filler — design system ===== */
:root{
  --ink:#1b1d23;
  --ink-soft:#454a54;
  --muted:#6b7280;
  --line:#e7e5e1;
  --bg:#ffffff;
  --bg-soft:#faf8f5;
  --bg-band:#1b1d23;
  --rust:#c2410c;
  --rust-dark:#9a3412;
  --amber:#f59e0b;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 1px 2px rgba(0,0,0,.04),0 8px 24px rgba(20,22,28,.06);
  --shadow-lg:0 20px 50px rgba(20,22,28,.14);
  --wrap:1140px;
  --font-head:"Fraunces",Georgia,serif;
  --font-body:"Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font-body);color:var(--ink);background:var(--bg);
  line-height:1.65;-webkit-font-smoothing:antialiased;font-size:17px;
}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 1.4rem}
a{color:var(--rust-dark);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--font-head);color:var(--ink);line-height:1.15;font-weight:600;margin:0 0 .5em}
h1{font-size:clamp(2rem,4.5vw,3.2rem)}
h2{font-size:clamp(1.5rem,3vw,2.1rem)}
img{max-width:100%;height:auto}

/* buttons */
.btn{display:inline-block;background:var(--rust);color:#fff;padding:.85rem 1.5rem;border-radius:999px;
  font-weight:600;border:0;cursor:pointer;font-size:1rem;transition:.2s;text-decoration:none}
.btn:hover{background:var(--rust-dark);text-decoration:none;transform:translateY(-1px)}
.btn-ghost{background:transparent;border:1.5px solid rgba(255,255,255,.5);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-sm{padding:.6rem 1.1rem;font-size:.92rem}
.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.78rem;font-weight:700;color:var(--rust);margin:0 0 .6rem}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{font-family:var(--font-head);font-weight:700;font-size:1.4rem;color:var(--ink);display:flex;align-items:center;gap:.5rem}
.brand:hover{text-decoration:none}
.brand-mark{color:var(--rust)}
.main-nav{display:flex;gap:.4rem}
.main-nav a{color:var(--ink-soft);font-weight:500;padding:.5rem .9rem;border-radius:999px;font-size:.98rem}
.main-nav a:hover{background:var(--bg-soft);text-decoration:none;color:var(--ink)}
.main-nav a.active{color:var(--rust);font-weight:600}
.menu-toggle{display:none;flex-direction:column;gap:5px;background:0;border:0;cursor:pointer;padding:8px}
.menu-toggle span{width:24px;height:2px;background:var(--ink);transition:.25s}
.menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.open span:nth-child(2){opacity:0}
.menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-nav{display:none;flex-direction:column;padding:.5rem 1.4rem 1rem;border-bottom:1px solid var(--line);background:#fff}
.mobile-nav a{padding:.8rem .2rem;border-bottom:1px solid var(--line);color:var(--ink-soft);font-weight:500}
.mobile-nav.open{display:flex}

/* hero */
.hero{background-size:cover;background-position:center;color:#fff}
.hero-inner{padding:6rem 1.4rem 6.5rem;max-width:820px}
.hero h1{color:#fff;font-size:clamp(2.3rem,5.5vw,3.8rem);font-weight:700}
.hero-sub{font-size:1.2rem;color:rgba(255,255,255,.92);max-width:620px;margin:1.2rem 0 2rem}
.hero-cta{display:flex;gap:.8rem;flex-wrap:wrap}

/* sections */
.section{padding:3.5rem 0}
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:1.8rem;gap:1rem}
.section-head h2{margin:0}
.section-head a{font-weight:600;white-space:nowrap}
.narrow{max-width:760px}
.center{text-align:center}

/* chips */
.chips{display:flex;flex-wrap:wrap;gap:.6rem;justify-content:center}
.chip{background:var(--bg-soft);border:1px solid var(--line);padding:.55rem 1.1rem;border-radius:999px;
  font-weight:600;font-size:.92rem;color:var(--ink-soft)}
.chip:hover{border-color:var(--rust);color:var(--rust);text-decoration:none}

/* cards */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:1.6rem}
.card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);transition:.22s;color:inherit}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);text-decoration:none}
.card-img{height:185px;background-size:cover;background-position:center;background-color:#ece9e4}
.card-body{padding:1.3rem 1.4rem 1.5rem;display:flex;flex-direction:column;flex:1}
.card-cat{font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;font-weight:700;color:var(--rust);margin-bottom:.5rem}
.card-body h3{font-size:1.2rem;margin:0 0 .5rem}
.card-body p{color:var(--muted);font-size:.95rem;margin:0 0 1rem;flex:1}
.card-more{font-weight:600;color:var(--rust-dark);font-size:.92rem}

/* band */
.band{background:var(--bg-band);color:#fff;margin-top:1rem}
.band-inner{padding:3.2rem 1.4rem;display:grid;grid-template-columns:1.2fr 1fr;gap:2rem;align-items:center}
.band h2{color:#fff;margin-top:0}
.band p{color:rgba(255,255,255,.8);margin:0}

/* page hero */
.page-hero{background:var(--bg-soft);border-bottom:1px solid var(--line);padding:3.2rem 0}
.page-hero h1{margin:0 0 .5rem}
.page-hero p{color:var(--muted);margin:0;font-size:1.1rem}

/* article */
.article-hero{background-size:cover;background-position:center;color:#fff;padding:5rem 0 4rem}
.article-hero h1{color:#fff;max-width:880px}
.article-cat{display:inline-block;background:var(--rust);color:#fff;padding:.35rem .9rem;border-radius:999px;
  font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;margin-bottom:1rem}
.article-cat:hover{text-decoration:none;background:var(--rust-dark)}
.article-body{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:3rem;padding:3.2rem 1.4rem}
.prose{font-size:1.08rem;color:var(--ink-soft)}
.prose p{margin:0 0 1.3rem}
.prose h2,.prose h3{color:var(--ink);margin:2rem 0 .8rem}
.prose h3{font-size:1.3rem}
.prose a{color:var(--rust-dark);font-weight:600;border-bottom:1px solid rgba(154,52,18,.3)}
.prose a:hover{border-color:var(--rust-dark)}
.prose ul,.prose ol{margin:0 0 1.3rem;padding-left:1.3rem}
.prose li{margin:.4rem 0}
.prose b,.prose strong{color:var(--ink)}

/* aside */
.article-aside{display:flex;flex-direction:column;gap:1.4rem;align-self:start;position:sticky;top:92px}
.aside-card{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem}
.aside-card h4{margin:0 0 .6rem;font-size:1.1rem}
.aside-card p{margin:0 0 1rem;font-size:.95rem;color:var(--muted)}

/* forms */
.field{margin-bottom:1.1rem}
.field label{display:block;font-weight:600;font-size:.92rem;margin-bottom:.35rem}
.field input,.field textarea{width:100%;padding:.8rem .9rem;border:1.5px solid var(--line);border-radius:var(--radius-sm);
  font-family:inherit;font-size:1rem;background:#fff;transition:.15s}
.field input:focus,.field textarea:focus{outline:0;border-color:var(--rust)}
.contact-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:2.5rem;align-items:start}
.contact-info h3{margin-top:0}
.contact-info{color:var(--ink-soft)}
.form-status{margin:.8rem 0 0;font-size:.92rem;min-height:1.2em}
.form-status.ok{color:#15803d;font-weight:600}
.form-status.err{color:#b91c1c;font-weight:600}
.newsletter .news-row{display:flex;gap:.5rem}
.newsletter input[type=email]{flex:1;padding:.75rem .9rem;border:1.5px solid var(--line);border-radius:999px;font-family:inherit;font-size:.95rem}
.newsletter input[type=email]:focus{outline:0;border-color:var(--rust)}
.newsletter button{background:var(--rust);color:#fff;border:0;border-radius:999px;padding:.75rem 1.3rem;font-weight:600;cursor:pointer;white-space:nowrap}
.newsletter button:hover{background:var(--rust-dark)}
.footer-news .newsletter input[type=email]{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.18);color:#fff}
.footer-news .newsletter input::placeholder{color:rgba(255,255,255,.5)}

/* footer */
.site-footer{background:var(--bg-band);color:rgba(255,255,255,.75);margin-top:2rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1.4fr 1.2fr;gap:2.5rem;padding:3.5rem 1.4rem 2.5rem}
.footer-brand{font-family:var(--font-head);font-weight:700;font-size:1.3rem;color:#fff;margin-bottom:.9rem}
.footer-about p{font-size:.95rem;margin:.5rem 0}
.footer-contact a{color:var(--amber)}
.footer-cols{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}
.footer-cols h4,.footer-news h4{color:#fff;font-size:1rem;margin:0 0 .9rem}
.footer-cols ul{list-style:none;margin:0;padding:0}
.footer-cols li{margin:.45rem 0}
.footer-cols a{color:rgba(255,255,255,.72);font-size:.94rem}
.footer-cols a:hover{color:#fff}
.footer-news p{font-size:.92rem;margin:0 0 1rem}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);font-size:.85rem;padding:1.3rem 0}
.footer-bottom .wrap{color:rgba(255,255,255,.62)}
.footer-bottom span{display:block;margin-top:.3rem;font-size:.82rem;color:rgba(255,255,255,.62)}

/* responsive */
@media(max-width:860px){
  .main-nav{display:none}
  .menu-toggle{display:flex}
  .article-body{grid-template-columns:1fr;gap:2rem}
  .article-aside{position:static}
  .contact-grid{grid-template-columns:1fr;gap:2rem}
  .band-inner{grid-template-columns:1fr;gap:1.4rem}
  .footer-grid{grid-template-columns:1fr;gap:2rem}
}
@media(max-width:520px){
  body{font-size:16px}
  .hero-inner{padding:4rem 1.4rem}
  .hero-cta{flex-direction:column}
  .hero-cta .btn{text-align:center}
  .newsletter .news-row{flex-direction:column}
  .newsletter button{width:100%}
}