/* =============================================
   Arche Stone Build — Main Stylesheet
   ============================================= */
:root {
  --black:      #0d0d0d;
  --dark:       #1a0e08;
  --brown-dark: #2c1608;
  --brown-mid:  #5a2d0c;
  --brown:      #8b4513;
  --amber:      #a0622a;
  --tan:        #c8a882;
  --tan-light:  #ddc9ae;
  --cream:      #f5f0e8;
  --stone:      #ede5d8;
  --white:      #ffffff;
  --gray-100:   #f8f4ef;
  --gray-200:   #e8e0d5;
  --gray-400:   #9e8e7e;
  --gray-600:   #5c4a38;
  --gray-800:   #2a1c10;
  --shadow-sm:  0 2px 8px rgba(44,22,8,.1);
  --shadow-md:  0 6px 24px rgba(44,22,8,.14);
  --shadow-lg:  0 14px 44px rgba(44,22,8,.18);
  --shadow-xl:  0 24px 64px rgba(44,22,8,.24);
  --r:          10px;
  --r-lg:       18px;
  --t:          .35s cubic-bezier(.4,0,.2,1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,sans-serif;color:var(--gray-600);background:#fff;overflow-x:hidden;line-height:1.65}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
button{cursor:pointer;border:none;background:none;font-family:inherit}

/* ── TYPOGRAPHY ── */
h1,h2,h3,h4,h5{font-family:'Playfair Display',Georgia,serif;font-weight:700;line-height:1.18;color:var(--dark)}
h1{font-size:clamp(2.4rem,5vw,4rem)}
h2{font-size:clamp(1.9rem,4vw,2.8rem)}
h3{font-size:clamp(1.2rem,2.5vw,1.6rem)}
h4{font-size:1.15rem}
p{font-size:.97rem;line-height:1.75;color:var(--gray-600)}

/* ── CONTAINER / LAYOUT ── */
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:90px 0}
.section-sm{padding:60px 0}
.text-center{text-align:center}

/* ── SECTION HEADER ── */
.sec-head{margin-bottom:56px}
.sec-head.center{text-align:center}
.sec-head.center .sec-head__inner{max-width:640px;margin:0 auto}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:.76rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--amber);margin-bottom:14px}
.eyebrow::before,.eyebrow::after{content:'';flex:1;height:1px;background:var(--tan);min-width:24px}
.sec-head h2{margin-bottom:14px}
.sec-head p{color:var(--gray-400);max-width:560px;font-size:1rem}
.sec-head.center p{margin:0 auto}

/* ── DIVIDER ── */
.divider{width:52px;height:3px;background:linear-gradient(90deg,var(--brown),var(--tan));border-radius:3px;margin:16px 0 22px}
.divider.center{margin:16px auto 22px}

/* ── BUTTONS ── */
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 32px;border-radius:4px;font-weight:600;font-size:.9rem;letter-spacing:.02em;transition:var(--t);cursor:pointer;font-family:inherit}
.btn-primary{background:var(--brown-dark);color:#fff;box-shadow:0 4px 18px rgba(44,22,8,.35)}
.btn-primary:hover{background:var(--brown-mid);transform:translateY(-2px);box-shadow:0 8px 28px rgba(44,22,8,.42)}
.btn-gold{background:linear-gradient(135deg,var(--amber),var(--brown));color:#fff;box-shadow:0 4px 18px rgba(160,98,42,.4)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(160,98,42,.5)}
.btn-outline{background:transparent;color:var(--brown-dark);border:2px solid var(--brown-dark)}
.btn-outline:hover{background:var(--brown-dark);color:#fff;transform:translateY(-2px)}
.btn-outline-light{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.6)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}

/* ── NAVBAR ── */
.navbar{position:fixed;top:0;left:0;width:100%;z-index:1000;padding:0;transition:background .4s,box-shadow .4s}
.navbar::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--brown-mid),var(--amber),var(--tan));z-index:2}
.navbar.scrolled{background:rgba(255,255,255,.97);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);box-shadow:0 2px 40px rgba(44,22,8,.13)}
.nav-container{max-width:1280px;margin:0 auto;padding:0 32px;display:flex;align-items:center;height:80px;gap:0}
.nav-logo{flex-shrink:0;margin-right:40px}
.nav-logo img{height:72px;width:auto;display:block;transition:var(--t)}
.navbar.scrolled .nav-logo img{filter:none}
.nav-menu{display:flex;align-items:center;gap:0;margin-left:auto}
.nav-link{position:relative;color:rgba(255,255,255,.9);font-size:.82rem;font-weight:600;padding:10px 16px;letter-spacing:.08em;text-transform:uppercase;transition:color .3s}
.nav-link::after{content:'';position:absolute;bottom:6px;left:16px;right:16px;height:2px;background:var(--amber);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link:hover,.nav-link.active{color:#fff}
.navbar.scrolled .nav-link{color:var(--gray-800)}
.navbar.scrolled .nav-link:hover,.navbar.scrolled .nav-link.active{color:var(--brown-dark)}
.nav-item{position:relative}
.nav-item:hover .nav-drop{opacity:1;pointer-events:all;transform:translateY(0)}
.nav-drop{position:absolute;top:calc(100% + 4px);left:0;background:#fff;border-radius:var(--r);box-shadow:0 20px 60px rgba(44,22,8,.18);padding:8px;min-width:230px;opacity:0;pointer-events:none;transform:translateY(-8px);transition:var(--t);border-top:3px solid var(--amber)}
.nav-drop a{display:flex;align-items:center;gap:8px;padding:10px 14px;border-radius:6px;color:var(--gray-600);font-size:.82rem;font-weight:500;letter-spacing:.02em;transition:var(--t)}
.nav-drop a::before{content:'›';color:var(--amber);font-size:1rem;line-height:1}
.nav-drop a:hover{background:var(--stone);color:var(--brown-dark);padding-left:18px}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:24px}
.btn-nav-quote{padding:10px 26px;border-radius:50px;background:var(--brown-dark);color:#fff;font-size:.78rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;transition:var(--t);border:2px solid var(--brown-dark)}
.btn-nav-quote:hover{background:transparent;color:var(--brown-dark);transform:translateY(-1px)}
.navbar:not(.scrolled) .btn-nav-quote{background:var(--amber);border-color:var(--amber);color:#fff}
.navbar:not(.scrolled) .btn-nav-quote:hover{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.hamburger{display:none;flex-direction:column;gap:5px;padding:6px;margin-left:10px;cursor:pointer}
.hamburger span{display:block;width:24px;height:2px;background:#fff;border-radius:2px;transition:var(--t)}
.navbar.scrolled .hamburger span{background:var(--dark)}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ── PAGE HERO BANNER ── */
.page-hero{background:linear-gradient(135deg,var(--dark) 0%,var(--brown-dark) 100%);padding:160px 0 80px;text-align:center;position:relative;overflow:hidden}
.page-hero::before{content:'';position:absolute;inset:0;background:url('https://images.unsplash.com/photo-1508193638397-1c4234db14d8?w=1400&q=60') center/cover no-repeat;opacity:.18}
.page-hero h1{color:#fff;margin-bottom:14px}
.page-hero p{color:rgba(255,255,255,.65);font-size:1.05rem;max-width:540px;margin:0 auto 22px}
.breadcrumb{display:flex;align-items:center;justify-content:center;gap:8px;font-size:.8rem;color:rgba(255,255,255,.45)}
.breadcrumb a{color:rgba(255,255,255,.65)}
.breadcrumb a:hover{color:var(--tan)}
.breadcrumb span{color:var(--tan)}

/* ── FEATURE SPLIT ── */
.split{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}
.split.reverse{direction:rtl}
.split.reverse>*{direction:ltr}
.split-img{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-xl);position:relative}
.split-img img{width:100%;height:440px;object-fit:cover}
.split-badge{position:absolute;bottom:24px;left:24px;background:#fff;border-radius:10px;padding:14px 18px;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:12px}
.split-badge span{font-size:1.8rem}
.split-badge div strong{display:block;font-size:.9rem;color:var(--dark)}
.split-badge div small{font-size:.75rem;color:var(--gray-400)}

/* ── SERVICE CARDS ── */
.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.svc-card{background:#fff;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-md);transition:var(--t);border-bottom:3px solid transparent}
.svc-card:hover{transform:translateY(-7px);box-shadow:var(--shadow-xl);border-bottom-color:var(--amber)}
.svc-card-img{width:100%;height:210px;object-fit:cover;transition:.5s ease}
.svc-card:hover .svc-card-img{transform:scale(1.06)}
.svc-card-img-wrap{overflow:hidden;position:relative}
.svc-card-body{padding:26px}
.svc-icon{width:50px;height:50px;border-radius:12px;background:linear-gradient(135deg,var(--brown-dark),var(--brown-mid));display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin-bottom:16px;box-shadow:0 4px 14px rgba(44,22,8,.25)}
.svc-card-body h3{font-size:1.15rem;margin-bottom:10px;color:var(--dark)}
.svc-card-body p{font-size:.87rem;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.svc-link{display:inline-flex;align-items:center;gap:6px;color:var(--amber);font-weight:600;font-size:.84rem;margin-top:14px}
.svc-link:hover{gap:10px}

/* ── PROJECT / PORTFOLIO GRID ── */
.proj-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:24px}
.proj-card{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-md);transition:var(--t);position:relative;background:var(--dark)}
.proj-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-xl)}
.proj-card img{width:100%;height:280px;object-fit:cover;transition:.5s ease;opacity:.92}
.proj-card:hover img{transform:scale(1.06);opacity:.7}
.proj-overlay{position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(13,9,5,.92) 100%);display:flex;flex-direction:column;justify-content:flex-end;padding:24px}
.proj-cat{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--tan);margin-bottom:6px}
.proj-overlay h3{color:#fff;font-size:1.1rem;margin-bottom:6px}
.proj-overlay p{color:rgba(255,255,255,.6);font-size:.82rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.proj-arrow{position:absolute;top:20px;right:20px;width:36px;height:36px;background:var(--amber);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:.75rem;opacity:0;transform:scale(.8);transition:var(--t)}
.proj-card:hover .proj-arrow{opacity:1;transform:scale(1)}

/* ── STATS ── */
.stats-bar{background:linear-gradient(135deg,var(--brown-dark),var(--dark));padding:56px 0}
.stats-inner{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:32px;text-align:center}
.stat-item .num{font-family:'Playfair Display',serif;font-size:3rem;font-weight:700;color:#fff;line-height:1}
.stat-item .num span{color:var(--tan)}
.stat-item p{color:rgba(255,255,255,.55);font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;margin-top:8px}

/* ── PROCESS ── */
.process-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:8px;position:relative}
.process-grid::before{content:'';position:absolute;top:30px;left:10%;right:10%;height:1px;background:var(--gray-200);z-index:0}
.proc-step{text-align:center;padding:32px 16px;position:relative;z-index:1}
.proc-num{width:60px;height:60px;border-radius:50%;background:var(--brown-dark);color:#fff;font-family:'Playfair Display',serif;font-size:1.4rem;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 18px;box-shadow:0 6px 20px rgba(44,22,8,.35)}
.proc-step h4{color:var(--dark);margin-bottom:8px;font-size:1rem}
.proc-step p{font-size:.84rem}

/* ── TESTIMONIALS ── */
.testi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px}
.testi-card{background:#fff;border-radius:var(--r-lg);padding:30px;box-shadow:var(--shadow-md);position:relative;border-top:3px solid var(--amber)}
.testi-quote{font-size:4rem;line-height:.8;color:var(--tan);font-family:Georgia,serif;opacity:.4;margin-bottom:8px}
.testi-card p{font-size:.9rem;font-style:italic;line-height:1.75;color:var(--gray-600);margin-bottom:20px}
.testi-author{display:flex;align-items:center;gap:12px}
.testi-author img{width:44px;height:44px;border-radius:50%;object-fit:cover}
.testi-author div strong{display:block;font-size:.88rem;color:var(--dark)}
.testi-author div span{font-size:.76rem;color:var(--gray-400)}
.testi-stars{color:#f5a623;font-size:.85rem;margin-bottom:12px}

/* ── FORM ── */
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:.84rem;font-weight:600;color:var(--gray-800);margin-bottom:7px;text-transform:uppercase;letter-spacing:.04em}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 16px;border:1.5px solid var(--gray-200);border-radius:6px;font-size:.92rem;color:var(--dark);background:#fff;transition:var(--t);font-family:inherit}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--amber);box-shadow:0 0 0 4px rgba(160,98,42,.12)}
.form-group textarea{resize:vertical;min-height:140px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* ── FAQ ── */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--gray-200);overflow:hidden}
.faq-q{display:flex;align-items:center;justify-content:space-between;padding:20px 4px;cursor:pointer;gap:16px}
.faq-q span{font-weight:600;color:var(--dark);font-size:.95rem}
.faq-icon{width:28px;height:28px;border-radius:50%;background:var(--stone);display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:var(--t);font-size:.7rem;color:var(--gray-400)}
.faq-item.open .faq-icon{background:var(--amber);color:#fff;transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:.4s ease}
.faq-item.open .faq-a{max-height:300px}
.faq-a p{padding:0 4px 20px;font-size:.9rem}

/* ── CTA BAND ── */
.cta-band{position:relative;overflow:hidden;padding:88px 0}
.cta-band::before{content:'';position:absolute;inset:0;background:url('https://images.unsplash.com/photo-1504307651254-35680f356dfd?w=1400&q=60') center/cover no-repeat}
.cta-band::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(26,14,8,.93),rgba(44,22,8,.88))}
.cta-band-inner{position:relative;z-index:1;text-align:center}
.cta-band h2{color:#fff;margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.7);max-width:520px;margin:0 auto 36px;font-size:1rem}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ── FOOTER ── */
.footer{background:var(--dark)}
.footer-top{padding:72px 0 52px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:48px}
.footer-brand .footer-logo img{height:52px;width:auto;margin-bottom:16px}
.footer-brand p{color:rgba(255,255,255,.45);font-size:.86rem;line-height:1.75}
.social-row{display:flex;gap:10px;margin-top:20px}
.social-row a{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.07);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.5);font-size:.8rem;transition:var(--t)}
.social-row a:hover{background:var(--amber);color:#fff}
.footer-col h4{color:#fff;font-size:.88rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;margin-bottom:20px;padding-bottom:10px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{color:rgba(255,255,255,.45);font-size:.84rem;transition:var(--t);display:flex;align-items:center;gap:7px}
.footer-col ul li a:hover{color:var(--tan);padding-left:4px}
.footer-contact-item{display:flex;align-items:flex-start;gap:12px;margin-bottom:14px}
.footer-contact-item i{color:var(--amber);margin-top:3px;font-size:.85rem;flex-shrink:0}
.footer-contact-item span{color:rgba(255,255,255,.45);font-size:.84rem;line-height:1.6}
.footer-bottom{border-top:1px solid rgba(255,255,255,.06);padding:20px 0}
.footer-bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer-bottom-inner p{color:rgba(255,255,255,.28);font-size:.78rem}
.footer-legal a{color:rgba(255,255,255,.28);font-size:.78rem;margin-left:18px;transition:var(--t)}
.footer-legal a:hover{color:var(--tan)}

/* ── REVEAL ANIMATIONS ── */
.reveal{opacity:0;transform:translateY(28px);transition:.75s cubic-bezier(.4,0,.2,1)}
.reveal.visible{opacity:1;transform:none}
.reveal-left{opacity:0;transform:translateX(-28px);transition:.75s cubic-bezier(.4,0,.2,1)}
.reveal-left.visible{opacity:1;transform:none}
.reveal-right{opacity:0;transform:translateX(28px);transition:.75s cubic-bezier(.4,0,.2,1)}
.reveal-right.visible{opacity:1;transform:none}
@keyframes fadeUp{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}

/* ── RESPONSIVE ── */
@media(max-width:1100px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:40px}
  .split.reverse{direction:ltr}
}
@media(max-width:900px){
  .nav-menu,.nav-actions{display:none}
  .hamburger{display:flex}
  .nav-menu.open{display:flex;flex-direction:column;position:fixed;top:0;left:0;width:100vw;height:100vh;background:var(--dark);z-index:999;justify-content:center;align-items:center;gap:6px}
  .nav-menu.open .nav-link{font-size:1.1rem;padding:14px 32px}
  .form-row{grid-template-columns:1fr}
  .process-grid::before{display:none}
}
@media(max-width:640px){
  .section{padding:60px 0}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom-inner{flex-direction:column;text-align:center}
  .stats-inner{grid-template-columns:1fr 1fr}
  .proj-grid{grid-template-columns:1fr}
}