/* ============================================================
   Twins Concrete LLC — TwinsConcreteLLC.com
   Design system: Modern + Local + Professional + Welcoming
   ============================================================ */
:root{
  --navy:#17304a;
  --navy-deep:#0f2238;
  --ink:#1c2733;
  --paper:#faf8f4;
  --stone:#efece5;
  --stone-dark:#e2ded4;
  --gray:#5b6874;
  --gray-light:#8b96a1;
  --accent:#e2601f;
  --accent-dark:#c74e12;
  --steel:#7da4c4;
  --white:#ffffff;
  --radius:14px;
  --shadow:0 10px 30px rgba(15,34,56,.10);
  --shadow-lg:0 24px 60px rgba(15,34,56,.16);
  --maxw:1180px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,.brand{font-family:'Sora','Inter',sans-serif;line-height:1.18;color:var(--navy);letter-spacing:-.015em}
img{max-width:100%;display:block}
a{color:var(--accent-dark);text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* ---------- top utility bar ---------- */
.topbar{background:var(--navy-deep);color:#cfd9e4;font-size:.82rem;padding:7px 0}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:12px}
.topbar a{color:#fff;font-weight:600}
.topbar .tb-loc{display:flex;align-items:center;gap:6px}
@media(max-width:640px){.topbar .tb-loc span.area{display:none}}

/* ---------- header / nav ---------- */
header.site{position:sticky;top:0;z-index:60;background:rgba(250,248,244,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--stone-dark)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:11px;font-weight:700;font-size:1.22rem;color:var(--navy)}
.brand .logo{width:42px;height:42px;border-radius:10px;background:linear-gradient(135deg,var(--navy) 55%,var(--steel));display:grid;place-items:center;color:#fff;font-size:1rem;font-weight:800;letter-spacing:0}
.brand small{display:block;font-family:'Inter';font-size:.66rem;font-weight:600;color:var(--gray);letter-spacing:.14em;text-transform:uppercase}
nav.menu{display:flex;gap:26px;align-items:center}
nav.menu a{color:var(--ink);font-weight:600;font-size:.93rem;padding:6px 2px;border-bottom:2px solid transparent}
nav.menu a:hover{color:var(--accent-dark)}
nav.menu a.active{color:var(--navy);border-bottom-color:var(--accent)}
.nav-cta{display:flex;gap:10px;align-items:center}
.hamburger{display:none;background:none;border:none;cursor:pointer;padding:8px}
.hamburger span{display:block;width:24px;height:2.6px;background:var(--navy);margin:5px 0;border-radius:2px;transition:.25s}
@media(max-width:960px){
  nav.menu{position:fixed;inset:74px 0 auto 0;background:var(--paper);flex-direction:column;gap:0;padding:10px 0 18px;border-bottom:1px solid var(--stone-dark);transform:translateY(-130%);transition:.3s;box-shadow:var(--shadow-lg)}
  nav.menu.open{transform:translateY(0)}
  nav.menu a{padding:13px 26px;width:100%;border-bottom:none;font-size:1.02rem}
  .hamburger{display:block}
  .nav-cta .btn{display:none}
}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:700;font-size:.95rem;border-radius:10px;padding:13px 24px;cursor:pointer;border:2px solid transparent;transition:.2s;text-align:center;font-family:'Inter'}
.btn-primary{background:var(--accent);color:#fff !important;box-shadow:0 6px 18px rgba(226,96,31,.35)}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-1px)}
.btn-navy{background:var(--navy);color:#fff !important}
.btn-navy:hover{background:var(--navy-deep)}
.btn-ghost{border-color:#fff;color:#fff !important;background:rgba(255,255,255,.06)}
.btn-ghost:hover{background:rgba(255,255,255,.16)}
.btn-outline{border-color:var(--navy);color:var(--navy) !important}
.btn-outline:hover{background:var(--navy);color:#fff !important}
.btn-lg{padding:16px 30px;font-size:1.02rem}
.btn-sm{padding:9px 16px;font-size:.85rem}

/* ---------- hero ---------- */
.hero{position:relative;color:#fff;overflow:hidden;background:var(--navy-deep)}
.hero .bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:saturate(1.05)}
.hero .scrim{position:absolute;inset:0;background:linear-gradient(100deg,rgba(10,25,42,.88) 20%,rgba(10,25,42,.62) 55%,rgba(10,25,42,.30))}
.hero .inner{position:relative;padding:110px 0 120px;max-width:720px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
.hero .eyebrow{color:#ffb389}
.hero h1{color:#fff;font-size:clamp(2.1rem,5vw,3.4rem);margin-bottom:18px}
.hero p.lead{font-size:clamp(1.02rem,2vw,1.2rem);color:#dbe4ec;max-width:560px;margin-bottom:32px}
.hero .cta-row{display:flex;gap:14px;flex-wrap:wrap}
.hero .hero-badges{display:flex;gap:22px;margin-top:44px;flex-wrap:wrap}
.hero .hb{display:flex;gap:10px;align-items:center;font-size:.9rem;color:#e7edf3;font-weight:600}
.hero .hb svg{flex:none}

/* ---------- sections ---------- */
section.block{padding:84px 0}
section.block.tight{padding:60px 0}
.sec-head{max-width:640px;margin-bottom:44px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head h2{font-size:clamp(1.65rem,3.4vw,2.35rem);margin-bottom:14px}
.sec-head p{color:var(--gray);font-size:1.03rem}
.bg-stone{background:var(--stone)}
.bg-navy{background:var(--navy-deep);color:#c9d5e0}
.bg-navy h2,.bg-navy h3{color:#fff}

/* ---------- cards / grids ---------- */
.grid{display:grid;gap:26px}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
@media(max-width:960px){.grid.cols-3,.grid.cols-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.grid.cols-3,.grid.cols-4,.grid.cols-2{grid-template-columns:1fr}}

.card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:.25s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card .thumb{aspect-ratio:4/3;overflow:hidden;background:var(--stone-dark)}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:.4s}
.card:hover .thumb img{transform:scale(1.05)}
.card .body{padding:22px 24px 26px;flex:1;display:flex;flex-direction:column}
.card h3{font-size:1.12rem;margin-bottom:8px}
.card p{color:var(--gray);font-size:.93rem;flex:1}
.card .link{margin-top:14px;font-weight:700;font-size:.9rem;color:var(--accent-dark)}

/* why choose */
.why-item{display:flex;gap:16px;align-items:flex-start}
.why-item .ic{flex:none;width:46px;height:46px;border-radius:12px;background:rgba(226,96,31,.12);display:grid;place-items:center;color:var(--accent-dark)}
.bg-navy .why-item .ic{background:rgba(255,255,255,.08);color:#ffb389}
.why-item h3{font-size:1.03rem;margin-bottom:5px}
.bg-navy .why-item p{color:#aebccb;font-size:.92rem}

/* ---------- gallery ---------- */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:34px}
.filters button{border:1.6px solid var(--stone-dark);background:#fff;border-radius:999px;padding:9px 18px;font-weight:600;font-size:.88rem;cursor:pointer;color:var(--gray);transition:.2s;font-family:'Inter'}
.filters button.active,.filters button:hover{background:var(--navy);border-color:var(--navy);color:#fff}
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:920px){.gallery-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.gallery-grid{grid-template-columns:1fr}}
.gitem{position:relative;border-radius:12px;overflow:hidden;cursor:pointer;aspect-ratio:4/3;background:var(--stone-dark)}
.gitem img{width:100%;height:100%;object-fit:cover;transition:.35s}
.gitem:hover img{transform:scale(1.06)}
.gitem .cap{position:absolute;inset:auto 0 0 0;background:linear-gradient(transparent,rgba(10,25,42,.85));color:#fff;padding:34px 16px 13px;font-size:.84rem;font-weight:600}
.gitem .tag{position:absolute;top:12px;left:12px;background:rgba(15,34,56,.82);color:#fff;font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:5px 11px;border-radius:999px}
.lightbox{position:fixed;inset:0;background:rgba(10,18,28,.93);display:none;align-items:center;justify-content:center;z-index:100;padding:30px;flex-direction:column;gap:14px}
.lightbox.open{display:flex}
.lightbox img{max-height:78vh;max-width:92vw;border-radius:10px;box-shadow:var(--shadow-lg)}
.lightbox .lb-cap{color:#dbe4ec;font-size:.95rem;text-align:center;max-width:640px}
.lightbox .lb-close{position:absolute;top:20px;right:26px;background:none;border:none;color:#fff;font-size:2rem;cursor:pointer;line-height:1}
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.12);border:none;color:#fff;font-size:2.4rem;line-height:1;width:54px;height:54px;border-radius:50%;cursor:pointer;display:grid;place-items:center;transition:.2s;z-index:2}
.lb-nav:hover{background:var(--accent)}
.lb-prev{left:22px}.lb-next{right:22px}
@media(max-width:640px){.lb-nav{width:44px;height:44px;font-size:1.9rem}.lb-prev{left:10px}.lb-next{right:10px}}

/* before after */
.ba-pair{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.ba-pair figure{position:relative;border-radius:12px;overflow:hidden}
.ba-pair figcaption{position:absolute;top:12px;left:12px;background:var(--navy-deep);color:#fff;font-size:.72rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;padding:6px 13px;border-radius:999px}
.ba-pair figure.after figcaption{background:var(--accent)}
.ba-pair img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/5}

/* ---------- reviews ---------- */
.review-card{background:#fff;border-radius:var(--radius);padding:30px 30px 26px;box-shadow:var(--shadow);position:relative}
.review-card .stars{color:#f5a623;font-size:1.05rem;letter-spacing:2px;margin-bottom:12px}
.review-card blockquote{font-size:1rem;color:var(--ink);margin-bottom:18px}
.review-card .who{display:flex;align-items:center;gap:12px}
.review-card .avatar{width:42px;height:42px;border-radius:50%;background:var(--navy);color:#fff;display:grid;place-items:center;font-weight:700;font-family:'Sora'}
.review-card .who b{display:block;font-size:.95rem;color:var(--navy)}
.review-card .who span{font-size:.8rem;color:var(--gray-light)}
.review-card .src{position:absolute;top:26px;right:26px;opacity:.85}

/* ---------- quote assistant ---------- */
.chat-shell{max-width:680px;margin:0 auto;background:#fff;border-radius:18px;box-shadow:var(--shadow-lg);overflow:hidden;border:1px solid var(--stone-dark)}
.chat-head{background:var(--navy-deep);color:#fff;padding:18px 24px;display:flex;align-items:center;gap:14px}
.chat-head .bot{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,var(--accent),#f08a4b);display:grid;place-items:center;font-size:1.3rem}
.chat-head h3{color:#fff;font-size:1.02rem}
.chat-head p{font-size:.78rem;color:#9fb2c4}
.chat-head .live{margin-left:auto;display:flex;align-items:center;gap:7px;font-size:.75rem;color:#8fd3a0;font-weight:600}
.chat-head .dot{width:8px;height:8px;border-radius:50%;background:#4caf70;animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.chat-body{padding:26px 24px;min-height:380px;max-height:520px;overflow-y:auto;background:linear-gradient(#f8f6f1,#f3f0e9)}
.msg{max-width:82%;margin-bottom:14px;padding:13px 17px;border-radius:16px;font-size:.94rem;animation:rise .3s ease}
@keyframes rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.msg.bot{background:#fff;border:1px solid var(--stone-dark);border-bottom-left-radius:5px;box-shadow:0 3px 10px rgba(15,34,56,.06)}
.msg.user{background:var(--navy);color:#fff;margin-left:auto;border-bottom-right-radius:5px}
.msg .typing{display:inline-flex;gap:5px;padding:4px 2px}
.msg .typing i{width:7px;height:7px;background:var(--gray-light);border-radius:50%;animation:blink 1.2s infinite}
.msg .typing i:nth-child(2){animation-delay:.2s}.msg .typing i:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,100%{opacity:.25}50%{opacity:1}}
.chips{display:flex;flex-wrap:wrap;gap:9px;margin:6px 0 16px}
.chips button{border:1.6px solid var(--navy);background:#fff;color:var(--navy);border-radius:999px;padding:9px 17px;font-weight:600;font-size:.87rem;cursor:pointer;transition:.18s;font-family:'Inter'}
.chips button:hover{background:var(--navy);color:#fff}
.chat-input{display:flex;gap:10px;padding:16px 20px;background:#fff;border-top:1px solid var(--stone-dark)}
.chat-input input,.chat-input textarea{flex:1;border:1.6px solid var(--stone-dark);border-radius:10px;padding:12px 15px;font-size:.95rem;font-family:'Inter';outline:none}
.chat-input input:focus{border-color:var(--steel)}
.chat-input button{flex:none}
.chat-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:4px 0 14px}
.chat-form-grid input{border:1.6px solid var(--stone-dark);border-radius:10px;padding:11px 14px;font-size:.92rem;font-family:'Inter';outline:none;width:100%}
.chat-form-grid input:focus{border-color:var(--steel)}
.chat-form-grid .full{grid-column:1/-1}
.upload-zone{border:2px dashed var(--steel);border-radius:12px;padding:22px;text-align:center;color:var(--gray);font-size:.9rem;cursor:pointer;background:rgba(125,164,196,.06);margin:4px 0 14px;transition:.2s}
.upload-zone:hover{background:rgba(125,164,196,.14)}
.upload-thumbs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.upload-thumbs img{width:64px;height:64px;object-fit:cover;border-radius:8px;border:2px solid #fff;box-shadow:var(--shadow)}
.summary-card{background:#fff;border:1.6px solid var(--stone-dark);border-radius:14px;padding:20px 22px;margin:8px 0 6px;font-size:.9rem}
.summary-card h4{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-dark);margin-bottom:12px}
.summary-card table{width:100%;border-collapse:collapse}
.summary-card td{padding:6px 0;vertical-align:top}
.summary-card td:first-child{color:var(--gray);width:38%;font-weight:600}
.demo-note{background:#fff8e8;border:1px solid #f0dfae;color:#7a6220;border-radius:10px;padding:12px 16px;font-size:.83rem;margin-top:14px}

/* ---------- contact ---------- */
.contact-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:34px}
.contact-row{display:flex;gap:16px;align-items:flex-start;padding:16px 0;border-bottom:1px solid var(--stone)}
.contact-row:last-child{border-bottom:none}
.contact-row .ic{flex:none;width:44px;height:44px;border-radius:12px;background:var(--stone);display:grid;place-items:center;color:var(--navy)}
.contact-row b{display:block;font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;color:var(--gray-light);margin-bottom:3px}
.contact-row a,.contact-row span{font-size:1.04rem;font-weight:600;color:var(--navy)}

/* ---------- footer ---------- */
footer.site{background:var(--navy-deep);color:#9fb2c4;padding:64px 0 0;font-size:.92rem}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
@media(max-width:880px){footer .cols{grid-template-columns:1fr 1fr}}
@media(max-width:560px){footer .cols{grid-template-columns:1fr}}
footer h4{color:#fff;font-size:.95rem;margin-bottom:16px}
footer a{color:#9fb2c4;display:block;padding:4px 0}
footer a:hover{color:#fff}
footer .brand{color:#fff;margin-bottom:14px}
footer .brand small{color:#7e93a8}
.social-row{display:flex;gap:10px;margin-top:14px}
.social-row a{width:40px;height:40px;border-radius:10px;background:rgba(255,255,255,.08);display:grid;place-items:center;padding:0}
.social-row a:hover{background:var(--accent)}
.legal{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;font-size:.8rem;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}

/* ---------- sticky mobile CTA ---------- */
.mobile-cta{display:none;position:fixed;bottom:0;left:0;right:0;z-index:70;background:#fff;border-top:1px solid var(--stone-dark);padding:10px 12px calc(10px + env(safe-area-inset-bottom));gap:10px;box-shadow:0 -8px 30px rgba(15,34,56,.14)}
.mobile-cta .btn{flex:1;padding:13px 10px;font-size:.9rem}
@media(max-width:760px){.mobile-cta{display:flex}body{padding-bottom:74px}}

/* ---------- misc ---------- */
.page-hero{background:linear-gradient(115deg,var(--navy-deep),var(--navy) 60%,#24466b);color:#fff;padding:74px 0 66px}
.page-hero h1{color:#fff;font-size:clamp(1.9rem,4.5vw,2.8rem);margin-bottom:12px}
.page-hero p{color:#c3d0dd;max-width:620px;font-size:1.05rem}
.crumb{font-size:.8rem;color:#8fa4b8;margin-bottom:18px;font-weight:600;letter-spacing:.06em}
.crumb a{color:#c3d0dd}
.stat-row{display:flex;gap:40px;flex-wrap:wrap}
.stat b{font-family:'Sora';font-size:2rem;color:var(--accent);display:block;line-height:1}
.stat span{font-size:.85rem;color:var(--gray)}
.bg-navy .stat span{color:#aebccb}
.check-list{list-style:none;display:grid;gap:12px}
.check-list li{display:flex;gap:12px;align-items:flex-start;color:var(--ink)}
.check-list li svg{flex:none;margin-top:4px}
.cta-band{background:linear-gradient(110deg,var(--accent-dark),var(--accent));border-radius:20px;color:#fff;padding:54px 48px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;box-shadow:var(--shadow-lg)}
.cta-band h2{color:#fff;font-size:clamp(1.5rem,3vw,2.1rem);margin-bottom:8px}
.cta-band p{color:#ffe1cf;max-width:480px}
.cta-band .btn{background:#fff;color:var(--accent-dark) !important;flex:none}
.cta-band .btn:hover{background:var(--paper)}
.reveal{opacity:1;transform:none} /* scroll animation removed — clarity first */
.reveal.in{opacity:1;transform:none}
a:focus-visible,.btn:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--steel);outline-offset:2px;border-radius:4px}
.lightbox .btn{margin-top:4px}
.svc-detail{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center;padding:54px 0;border-bottom:1px solid var(--stone-dark)}
.svc-detail:last-of-type{border-bottom:none}
.svc-detail.flip .media{order:2}
@media(max-width:860px){.svc-detail{grid-template-columns:1fr}.svc-detail.flip .media{order:0}}
.svc-detail .media img{border-radius:16px;box-shadow:var(--shadow-lg);width:100%;aspect-ratio:4/3;object-fit:cover}
.svc-detail h3{font-size:1.5rem;margin-bottom:12px}
.svc-detail p.desc{color:var(--gray);margin-bottom:18px}
.faq{background:#fff;border:1px solid var(--stone-dark);border-radius:12px;margin-bottom:10px;overflow:hidden}
.faq summary{padding:16px 20px;font-weight:700;cursor:pointer;color:var(--navy);font-size:.95rem;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:'+';font-size:1.3rem;color:var(--accent);font-weight:400}
.faq[open] summary:after{content:'–'}
.faq .a{padding:0 20px 16px;color:var(--gray);font-size:.92rem}