*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
:root{--p:#27AE60;--p2:#1E8449;--a:#4A5568;--a2:#2D3748;--dark:#1A2930;--cream:#F4F7F5;--light:#EAF4EE;--text:#1F2D2F;--gray:#5A6E6A;--white:#fff;--radius:8px;--shadow:0 8px 40px rgba(39,174,96,.10);--trans:.3s ease;}
html{scroll-behavior:smooth;}
body{font-family:'Inter',Arial,sans-serif;color:var(--text);background:var(--cream);line-height:1.6;}
img{display:block;max-width:100%;}a{text-decoration:none;color:inherit;}
.container{max-width:1180px;margin:0 auto;padding:0 36px;}
#header{position:fixed;top:0;left:0;right:0;z-index:100;transition:background var(--trans),box-shadow var(--trans);}
#header.scrolled{background:var(--dark);box-shadow:0 2px 20px rgba(0,0,0,.4);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;}
.logo-link img{height:40px;}
.nav{display:flex;align-items:center;gap:30px;}
.nav a:not(.btn-nav){color:rgba(255,255,255,.82);font-size:.88rem;font-weight:500;}
.nav a:not(.btn-nav):hover{color:var(--p);}
.btn-nav{background:var(--p);color:var(--white);padding:10px 22px;border-radius:var(--radius);font-weight:800;font-size:.85rem;}
.btn-nav:hover{background:var(--p2);}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px;}
.hamburger span{display:block;width:24px;height:2px;background:var(--white);}

/* HERO — full-bleed imagen, texto centrado sobre overlay, sin counters */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;overflow:hidden;}
.hero-bg{position:absolute;inset:0;z-index:0;}
.hero-bg img{width:100%;height:100%;object-fit:cover;}
.hero-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(26,41,48,.88) 0%,rgba(39,174,96,.25) 100%);}
.hero-inner{position:relative;z-index:1;text-align:center;max-width:780px;padding:0 24px;}
.hero-badge{display:inline-flex;align-items:center;gap:10px;background:rgba(39,174,96,.15);border:1px solid rgba(39,174,96,.35);border-radius:40px;padding:8px 20px;margin-bottom:32px;}
.hero-badge span{font-size:.72rem;font-weight:700;letter-spacing:3px;text-transform:uppercase;color:var(--p);}
.hero-h1{font-size:clamp(2.2rem,5vw,3.8rem);font-weight:900;color:var(--white);line-height:1.07;letter-spacing:-.8px;margin-bottom:24px;}
.hero-h1 mark{background:none;color:var(--p);}
.hero-sub{font-size:1.05rem;color:rgba(255,255,255,.6);line-height:1.8;margin-bottom:48px;max-width:560px;margin-left:auto;margin-right:auto;}
.hero-ctas{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;}
.btn-primary{display:inline-block;background:var(--p);color:var(--white);padding:15px 40px;border-radius:var(--radius);font-weight:800;font-size:.95rem;transition:background var(--trans),transform var(--trans);}
.btn-primary:hover{background:var(--p2);transform:translateY(-2px);}
.btn-outline{display:inline-block;border:1.5px solid rgba(255,255,255,.3);color:var(--white);padding:14px 36px;border-radius:var(--radius);font-weight:600;font-size:.92rem;transition:border-color var(--trans);}
.btn-outline:hover{border-color:rgba(255,255,255,.7);}
.hero-scroll{position:absolute;bottom:32px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:8px;}
.hero-scroll span{font-size:.68rem;letter-spacing:3px;text-transform:uppercase;color:rgba(255,255,255,.4);}
.scroll-line{width:1px;height:48px;background:linear-gradient(to bottom,rgba(39,174,96,.8),transparent);}

/* ZIGZAG SERVICES */
.servicios{padding:100px 0;background:var(--white);}
.sec-tag{display:inline-block;font-size:.68rem;font-weight:700;letter-spacing:4px;text-transform:uppercase;color:var(--p);margin-bottom:8px;}
.sec-h2{font-size:clamp(1.5rem,2.8vw,2.3rem);font-weight:900;color:var(--text);letter-spacing:-.4px;line-height:1.2;}
.svc-intro{text-align:center;margin-bottom:72px;}
.svc-intro p{color:var(--gray);margin-top:12px;font-size:.96rem;max-width:520px;margin-left:auto;margin-right:auto;}
.svc-row{display:grid;grid-template-columns:1fr 1fr;gap:0;margin-bottom:2px;min-height:340px;overflow:hidden;}
.svc-row.reverse{direction:rtl;}
.svc-row.reverse > *{direction:ltr;}
.svc-row-img{overflow:hidden;position:relative;}
.svc-row-img img{width:100%;height:100%;object-fit:cover;transition:transform .7s;}
.svc-row:hover .svc-row-img img{transform:scale(1.04);}
.svc-row-body{display:flex;flex-direction:column;justify-content:center;padding:52px 56px;background:var(--cream);}
.svc-row.reverse .svc-row-body{background:var(--light);}
.svc-num-big{font-size:5rem;font-weight:900;color:rgba(39,174,96,.08);line-height:1;margin-bottom:-12px;}
.svc-row-body h3{font-size:1.2rem;font-weight:800;color:var(--text);margin-bottom:14px;line-height:1.3;}
.svc-row-body p{font-size:.9rem;color:var(--gray);line-height:1.72;margin-bottom:20px;}
.svc-tags{display:flex;flex-wrap:wrap;gap:8px;}
.svc-tag{background:var(--white);border:1px solid rgba(39,174,96,.25);color:var(--p2);padding:5px 14px;border-radius:30px;font-size:.78rem;font-weight:600;}
.svc-row{opacity:0;transform:translateY(16px);}
.svc-row.visible{opacity:1;transform:none;transition:opacity .6s,transform .6s;}

/* DIFS GRID 2x2 con íconos grandes */
.difs{padding:100px 0;background:var(--dark);}
.difs .sec-tag{color:rgba(39,174,96,.9);}
.difs .sec-h2{color:var(--white);}
.difs-intro{margin-bottom:64px;}
.difs-intro p{color:rgba(255,255,255,.45);margin-top:12px;font-size:.95rem;}
.dif-grid{display:grid;grid-template-columns:1fr 1fr;gap:2px;}
.dif-block{background:rgba(255,255,255,.03);padding:48px 44px;border:1px solid rgba(255,255,255,.05);transition:background var(--trans);opacity:0;transform:scale(.97);}
.dif-block.visible{opacity:1;transform:none;transition:opacity .5s,transform .5s;}
.dif-block:hover{background:rgba(39,174,96,.07);}
.dif-icon{font-size:2.4rem;color:var(--p);margin-bottom:20px;}
.dif-block h4{font-size:1.05rem;font-weight:800;color:var(--white);margin-bottom:10px;}
.dif-block p{font-size:.87rem;color:rgba(255,255,255,.45);line-height:1.7;}

/* MASONRY GALLERY */
.galeria{padding:0;background:var(--cream);}
.masonry{display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:200px 200px;gap:4px;}
.m1{grid-column:1/3;grid-row:1/3;}
.m2{grid-column:3/4;grid-row:1/2;}
.m3{grid-column:4/5;grid-row:1/2;}
.m4{grid-column:3/4;grid-row:2/3;}
.m5{grid-column:4/5;grid-row:2/3;}
.masonry-item{overflow:hidden;}
.masonry-item img{width:100%;height:100%;object-fit:cover;transition:transform .6s;}
.masonry-item:hover img{transform:scale(1.06);}

/* PROCESO vertical timeline */
.proceso{padding:100px 0;background:var(--white);}
.proceso .sec-tag{color:var(--p);}
.proceso-intro{text-align:center;margin-bottom:72px;}
.proceso-intro p{color:var(--gray);margin-top:12px;font-size:.95rem;}
.timeline{position:relative;max-width:680px;margin:0 auto;padding-left:60px;}
.timeline::before{content:'';position:absolute;left:19px;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,var(--p),rgba(39,174,96,.1));}
.tl-item{position:relative;margin-bottom:52px;opacity:0;transform:translateX(-12px);}
.tl-item.visible{opacity:1;transform:none;transition:opacity .5s,transform .5s;}
.tl-dot{position:absolute;left:-49px;top:4px;width:40px;height:40px;border-radius:50%;background:var(--p);display:flex;align-items:center;justify-content:center;font-size:.72rem;font-weight:900;color:var(--white);box-shadow:0 0 0 6px rgba(39,174,96,.12);}
.tl-item h4{font-size:1rem;font-weight:800;color:var(--text);margin-bottom:8px;}
.tl-item p{font-size:.88rem;color:var(--gray);line-height:1.68;}

/* CONTACTO */
.contacto{padding:100px 0;background:var(--light);}
.contacto-inner{display:grid;grid-template-columns:1fr 1.3fr;gap:80px;align-items:start;}
.c-left .sec-h2{color:var(--text);}
.c-left p{color:var(--gray);font-size:.95rem;line-height:1.72;margin:16px 0 28px;}
.c-info{list-style:none;display:flex;flex-direction:column;gap:14px;}
.c-info li{display:flex;align-items:center;gap:14px;font-size:.9rem;color:var(--gray);}
.c-info li i{color:var(--p);width:18px;}
.c-img{width:100%;height:200px;object-fit:cover;border-radius:var(--radius);margin-bottom:28px;}
.c-form{background:var(--dark);border-radius:12px;padding:44px;}
.form-group{display:flex;flex-direction:column;gap:6px;margin-bottom:16px;}
.form-group label{font-size:.79rem;font-weight:700;color:rgba(255,255,255,.55);}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-group input,.form-group select,.form-group textarea{padding:12px 16px;border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);font-size:.9rem;font-family:inherit;background:rgba(255,255,255,.06);color:var(--white);transition:border-color var(--trans);}
.form-group input::placeholder,.form-group textarea::placeholder{color:rgba(255,255,255,.25);}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--p);}
.form-group select{color:rgba(255,255,255,.5);}
.form-group select option{background:var(--dark);}
.form-group textarea{resize:vertical;}
.btn-submit{width:100%;padding:15px;background:var(--p);color:var(--white);border:none;border-radius:var(--radius);font-weight:800;font-size:1rem;cursor:pointer;transition:background var(--trans);}
.btn-submit:hover{background:var(--p2);}
.form-success{display:none;margin-top:16px;padding:14px;background:rgba(39,174,96,.15);border-radius:var(--radius);color:var(--p);font-weight:600;font-size:.9rem;text-align:center;}
.c-left,.c-form{opacity:0;transform:translateY(14px);}
.c-left.visible,.c-form.visible{opacity:1;transform:none;transition:opacity .6s,transform .6s;}

/* FOOTER */
.footer{background:var(--dark);padding:60px 0 24px;}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr;gap:60px;margin-bottom:40px;}
.footer-brand img{height:36px;margin-bottom:16px;}
.footer-brand p{font-size:.85rem;color:rgba(255,255,255,.38);line-height:1.7;}
.footer-col h5{font-size:.7rem;font-weight:700;letter-spacing:2.5px;text-transform:uppercase;color:var(--p);margin-bottom:14px;}
.footer-col{display:flex;flex-direction:column;gap:8px;}
.footer-col a{font-size:.85rem;color:rgba(255,255,255,.4);transition:color var(--trans);}
.footer-col a:hover{color:var(--white);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.06);padding-top:24px;text-align:center;}
.footer-bottom p{font-size:.8rem;color:rgba(255,255,255,.25);}

@media(max-width:768px){
.svc-row{grid-template-columns:1fr;}.svc-row.reverse{direction:ltr;}
.dif-grid{grid-template-columns:1fr;}
.masonry{grid-template-columns:1fr 1fr;grid-template-rows:auto;}.m1,.m2,.m3,.m4,.m5{grid-column:auto;grid-row:auto;}
.contacto-inner{grid-template-columns:1fr;}
.footer-inner{grid-template-columns:1fr;}
.timeline{padding-left:44px;}
.form-row{grid-template-columns:1fr;}
.nav{display:none;position:fixed;inset:0;background:var(--dark);flex-direction:column;justify-content:center;align-items:center;gap:24px;z-index:99;}.nav.open{display:flex;}.nav a{font-size:1.1rem;}
.hamburger{display:flex;z-index:100;}
}