:root{
  --principal:#771011;--secundario:#6F635B;--oscuro:#221712;
  --neutro:#C0BFB2;--claro:#ECE6D3;--principal-d:#5d0c0d;
  --serif:'Cormorant SC', Georgia, serif;
  --sans:'Source Sans 3','Source Sans Pro', -apple-system, BlinkMacSystemFont, sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:var(--sans);font-weight:300;color:var(--oscuro);background:var(--claro);line-height:1.7;overflow-x:hidden}
h1,h2,h3,.serif{font-family:var(--serif);font-weight:500;letter-spacing:.02em}
a{text-decoration:none;color:inherit}
.container{max-width:1180px;margin:0 auto;padding:0 28px}
.accent-line{width:54px;height:2px;background:var(--principal);margin:18px 0 26px}
.center .accent-line{margin:18px auto 26px}
section{padding:90px 0}
.eyebrow{font-size:.72rem;letter-spacing:.34em;text-transform:uppercase;color:var(--principal);font-weight:600}
h2{font-size:2.6rem;line-height:1.1;margin-top:8px;color:var(--oscuro)}

/* NAV */
nav{position:fixed;top:0;left:0;width:100%;z-index:100;display:flex;align-items:center;justify-content:space-between;
  padding:16px 40px;background:rgba(34,23,18,.97);box-shadow:0 4px 24px rgba(0,0,0,.22)}
.brand{display:flex;align-items:center;gap:13px;color:var(--claro)}
.iso{width:42px;height:42px;border:1.5px solid var(--neutro);display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-size:.92rem;color:var(--claro);border-radius:2px;flex-shrink:0}
.brand-name{font-family:var(--serif);font-size:1.05rem;letter-spacing:.04em;line-height:1.05}
.brand-name small{display:block;font-size:.62rem;letter-spacing:.32em;color:var(--neutro);font-family:var(--sans);font-weight:300}
.nav-links{display:flex;gap:26px;align-items:center}
.nav-links a{color:var(--claro);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;font-weight:300;position:relative;padding:4px 0;transition:color .3s}
.nav-links a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:1px;background:var(--principal);transition:width .3s}
.nav-links a:hover,.nav-links a.nav-active{color:#fff}
.nav-links a:hover::after,.nav-links a.nav-active::after{width:100%}
.nav-cta{border:1px solid var(--neutro);padding:9px 18px !important;border-radius:2px;transition:all .3s}
.nav-cta:hover{background:var(--principal);border-color:var(--principal)}
.nav-cta::after{display:none !important}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:6px}
.burger span{width:24px;height:1.5px;background:var(--claro);transition:.3s}

/* HERO */
.hero{min-height:92vh;display:flex;align-items:center;position:relative;padding:150px 0 80px;overflow:hidden;
  background:linear-gradient(rgba(34,23,18,.82),rgba(34,23,18,.9)),radial-gradient(circle at 75% 30%, rgba(119,16,17,.5), transparent 55%),var(--oscuro)}
.hero-watermark{position:absolute;right:-40px;bottom:-70px;font-family:var(--serif);font-size:28rem;line-height:.8;color:rgba(192,191,178,.04);pointer-events:none;user-select:none}
.hero-content{max-width:760px;position:relative;z-index:2}
.hero .eyebrow{color:var(--neutro)}
.hero h1{font-size:4.2rem;line-height:1.05;color:var(--claro);margin:20px 0 0}
.hero h1 span{color:var(--principal);display:block}
.hero p{color:var(--neutro);font-size:1.16rem;font-weight:200;max-width:560px;margin:26px 0 40px}
.btn{display:inline-block;background:var(--principal);color:var(--claro);padding:15px 34px;font-size:.8rem;letter-spacing:.16em;text-transform:uppercase;font-weight:400;border-radius:2px;transition:all .35s;border:1px solid var(--principal);cursor:pointer}
.btn:hover{background:transparent;transform:translateY(-2px)}
.btn-ghost{background:transparent;border:1px solid var(--neutro);margin-left:14px}
.btn-ghost:hover{background:var(--claro);color:var(--oscuro);border-color:var(--claro)}

/* PAGE HEADER */
.page-header{padding:150px 0 64px;background:linear-gradient(rgba(34,23,18,.9),rgba(34,23,18,.94)),radial-gradient(circle at 80% 20%, rgba(119,16,17,.45), transparent 55%),var(--oscuro)}
.page-header .eyebrow{color:var(--neutro)}
.page-header h1{font-size:3rem;color:var(--claro);margin-top:10px}
.page-header .accent-line{margin-bottom:0}

/* HOME INTRO */
.intro{background:var(--claro)}
.intro-lead{max-width:720px;font-size:1.25rem;font-weight:200;color:var(--oscuro)}
.link-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:54px}
.link-card{background:#fff;border:1px solid var(--neutro);padding:38px 32px;transition:all .4s;display:block;border-radius:3px}
.link-card:hover{transform:translateY(-5px);box-shadow:0 16px 40px rgba(34,23,18,.12)}
.link-card .lc-icon{color:var(--principal);margin-bottom:18px}
.link-card .lc-icon svg{width:34px;height:34px;stroke:var(--principal);fill:none;stroke-width:1.3}
.link-card h3{font-size:1.5rem;color:var(--oscuro);font-weight:600;margin-bottom:10px}
.link-card p{color:var(--secundario);font-size:.95rem;margin-bottom:16px}
.link-card .arrow{color:var(--principal);font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;font-weight:600}

/* CTA band */
.cta-band{background:var(--oscuro);text-align:center;padding:80px 0}
.cta-band h2{color:var(--claro)}
.cta-band p{color:var(--neutro);font-weight:200;max-width:520px;margin:14px auto 32px}

/* SERVICIOS */
.grid-serv{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--neutro);border:1px solid var(--neutro)}
.serv{background:var(--claro);padding:46px 40px;transition:all .4s;position:relative}
.serv:hover{background:#fff}
.serv-num{font-family:var(--serif);font-size:1rem;color:var(--principal);opacity:.5}
.serv-icon{margin:16px 0 20px}
.serv-icon svg{width:38px;height:38px;stroke:var(--principal);fill:none;stroke-width:1.3}
.serv h3{font-size:1.5rem;color:var(--oscuro);margin-bottom:12px;font-weight:600}
.serv p{color:var(--secundario);font-size:.97rem}
.serv::before{content:'';position:absolute;left:0;top:0;width:3px;height:0;background:var(--principal);transition:height .4s}
.serv:hover::before{height:100%}

/* EQUIPO */
.grid-equipo{display:grid;grid-template-columns:repeat(2,1fr);gap:34px}
.miembro{background:#fff;border:1px solid var(--neutro);padding:40px;display:flex;gap:26px;align-items:flex-start;transition:all .4s;border-radius:3px}
.miembro:hover{transform:translateY(-4px);box-shadow:0 14px 36px rgba(34,23,18,.1)}
.avatar{width:92px;height:92px;flex-shrink:0;border-radius:3px;background:linear-gradient(145deg,var(--principal),var(--principal-d));display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:1.8rem;color:var(--claro)}
.miembro h3{font-size:1.5rem;color:var(--oscuro);font-weight:600}
.miembro .rol{color:var(--principal);font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;margin:6px 0 14px;font-weight:600}
.miembro p{color:var(--secundario);font-size:.94rem}

/* CLIENTES */
.clientes-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--neutro);border:1px solid var(--neutro)}
.cliente{background:var(--claro);padding:44px 18px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;transition:all .4s;min-height:148px}
.cliente:hover{background:#fff}
.cliente-logo{width:56px;height:56px;border-radius:50%;border:1.5px solid var(--secundario);display:flex;align-items:center;justify-content:center;font-family:var(--serif);color:var(--secundario);transition:all .4s}
.cliente:hover .cliente-logo{border-color:var(--principal);color:var(--principal)}
.cliente span{font-size:.8rem;color:var(--secundario)}
.clientes-nota{margin-top:28px;font-size:.85rem;color:var(--secundario);font-style:italic;opacity:.8;text-align:center}

/* ESTUDIO */
.estudio-wrap{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.estudio-wrap p{color:var(--oscuro);font-size:1.04rem;margin-bottom:18px}
.valores{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:6px}
.valor{border-left:2px solid var(--principal);padding-left:18px}
.valor h4{font-family:var(--serif);font-size:1.2rem;color:var(--principal);font-weight:600}
.valor p{font-size:.9rem;margin:0;opacity:.85}
.estudio-stat{background:var(--oscuro);color:var(--claro);padding:50px;border-radius:4px}
.stat-row{display:flex;justify-content:space-between;align-items:baseline;padding:20px 0;border-bottom:1px solid rgba(192,191,178,.18)}
.stat-row:last-child{border-bottom:none}
.stat-row .num{font-family:var(--serif);font-size:2.4rem;color:var(--neutro)}
.stat-row .lbl{font-size:.82rem;color:var(--neutro);text-align:right;max-width:160px}

/* FAQ */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--neutro)}
.faq-q{width:100%;text-align:left;background:none;border:none;padding:26px 0;font-family:var(--serif);font-size:1.32rem;color:var(--oscuro);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:24px;transition:color .3s}
.faq-q:hover{color:var(--principal)}
.faq-q .plus{flex-shrink:0;width:22px;height:22px;position:relative;transition:transform .35s}
.faq-q .plus::before,.faq-q .plus::after{content:'';position:absolute;background:var(--principal);left:50%;top:50%;transform:translate(-50%,-50%)}
.faq-q .plus::before{width:14px;height:1.5px}
.faq-q .plus::after{width:1.5px;height:14px}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-a p{padding:0 0 26px;color:var(--secundario);font-size:1rem;max-width:680px}
.faq-item.open .faq-a{max-height:340px}
.faq-item.open .plus{transform:rotate(135deg)}
.faq-item.open .plus::after{opacity:0}

/* CONTACTO */
.contacto-wrap{display:grid;grid-template-columns:1fr 1.1fr;gap:56px}
.contacto-info p{color:var(--secundario);margin-bottom:28px;max-width:380px}
.info-item{display:flex;gap:16px;align-items:flex-start;margin-bottom:24px}
.info-item svg{width:22px;height:22px;stroke:var(--principal);fill:none;stroke-width:1.4;flex-shrink:0;margin-top:3px}
.info-item .lbl{font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--secundario)}
.info-item .val{color:var(--oscuro);font-size:1rem}
.form{display:flex;flex-direction:column;gap:16px}
.form input,.form textarea{background:#fff;border:1px solid var(--neutro);padding:15px 18px;color:var(--oscuro);font-family:var(--sans);font-size:.95rem;border-radius:2px;transition:border .3s}
.form input::placeholder,.form textarea::placeholder{color:var(--secundario)}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--principal)}
.form textarea{resize:vertical;min-height:120px}
.form .btn{text-align:center;margin-top:6px}
.form-msg{font-size:.88rem;color:var(--principal);min-height:20px}

/* FOOTER */
footer{background:#1a110d;color:var(--neutro);padding:50px 0 30px;text-align:center}
.footer-brand{font-family:var(--serif);font-size:1.4rem;color:var(--claro);letter-spacing:.05em}
.footer-links{display:flex;gap:24px;justify-content:center;margin:24px 0;flex-wrap:wrap}
.footer-links a{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--neutro);transition:color .3s}
.footer-links a:hover{color:var(--principal)}
.footer-copy{font-size:.78rem;color:var(--secundario);margin-top:18px;border-top:1px solid rgba(192,191,178,.12);padding-top:24px}

@media(max-width:980px){
  .nav-links{position:fixed;top:0;right:-100%;height:100vh;width:76%;max-width:330px;background:var(--oscuro);flex-direction:column;justify-content:center;gap:26px;transition:right .4s ease;box-shadow:-10px 0 40px rgba(0,0,0,.4)}
  .nav-links.open{right:0}
  .burger{display:flex;z-index:101}
  .burger.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
  .burger.open span:nth-child(2){opacity:0}
  .burger.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
  .hero h1{font-size:2.9rem}.page-header h1{font-size:2.3rem}h2{font-size:2.05rem}
  .grid-serv,.grid-equipo,.estudio-wrap,.contacto-wrap,.link-cards{grid-template-columns:1fr}
  .clientes-grid{grid-template-columns:repeat(2,1fr)}
  .miembro{flex-direction:column}.hero-watermark{font-size:15rem}
  .btn-ghost{margin-left:0;margin-top:12px}
  section{padding:64px 0}nav{padding:14px 22px}
  .page-header{padding:130px 0 50px}
}