/* MasterPlan Advisor — sistema "Grafito & Señal" */
:root{
  --grafito:#23272B; --grafito-2:#2E3338; --hormigon:#8B9096; --obra:#F3B24D;
  --bg:#F6F6F4; --paper:#FFFFFF; --ink:#1B1E21; --ink-2:#4B5157; --line:#E2E4E6;
  --sans:"Work Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --wrap:1160px; --gut:20px; --r:6px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--bg);line-height:1.55;font-size:17px}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{line-height:1.15;margin:0 0 .5em;font-weight:600;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.5vw,3.4rem)}
h2.section-title{font-size:clamp(1.5rem,2.8vw,2.2rem);max-width:28ch}
p{margin:0 0 1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gut)}
.kicker{font-family:var(--mono);font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:var(--obra);margin-bottom:1rem}
.lead{font-size:1.1rem;color:var(--ink-2);max-width:62ch}
.mono{font-family:var(--mono);font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;color:var(--hormigon)}
.btn{display:inline-block;padding:.85rem 1.4rem;border-radius:var(--r);text-decoration:none;font-weight:600;font-size:.95rem;border:2px solid transparent;cursor:pointer;transition:transform .12s ease,background .15s ease}
.btn:hover{transform:translateY(-1px)}
.btn-accent{background:var(--obra);color:var(--grafito)}
.btn-accent:hover{background:#F7C26B}
.btn-ghost{background:transparent;color:var(--grafito);border-color:var(--grafito)}
.btn-ghost:hover{background:var(--grafito);color:#fff}

/* header */
.site-header{position:sticky;top:0;z-index:20;background:rgba(35,39,43,.96);backdrop-filter:saturate(1.2) blur(6px);color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:.65rem;text-decoration:none}
.mark{width:34px;height:34px;fill:#fff}
.mark-light{fill:#fff}
.brand-name{font-size:1.05rem;letter-spacing:.01em}
.brand-name strong{font-weight:700;color:var(--obra)}
.nav ul{list-style:none;margin:0;padding:0;display:flex;gap:1.6rem}
.nav a{text-decoration:none;font-size:.95rem;font-weight:500;color:rgba(255,255,255,.85);padding:.4rem 0;border-bottom:2px solid transparent}
.nav a:hover,.nav a.is-active{color:#fff;border-bottom-color:var(--obra)}
.nav-toggle{display:none;background:none;border:0;width:44px;height:44px;padding:10px;cursor:pointer}
.nav-toggle span{display:block;height:2px;background:#fff;margin:5px 0;transition:transform .2s}
@media (max-width:760px){
  .nav-toggle{display:block}
  .nav{position:absolute;left:0;right:0;top:68px;background:var(--grafito);display:none;padding:1rem var(--gut) 1.4rem;border-bottom:1px solid rgba(255,255,255,.1)}
  .nav.is-open{display:block}
  .nav ul{flex-direction:column;gap:.2rem}
  .nav a{display:block;padding:.7rem 0;font-size:1.05rem}
}

/* hero */
.hero,.project-hero{position:relative;color:#fff;background:var(--grafito);isolation:isolate}
.hero::before,.project-hero::before{content:"";position:absolute;inset:0;background-image:var(--hero);background-size:cover;background-position:center;z-index:-2}
.hero::after,.project-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(35,39,43,.92) 0%,rgba(35,39,43,.72) 55%,rgba(35,39,43,.35) 100%);z-index:-1}
.hero .hero-inner{padding:clamp(5rem,12vw,9rem) var(--gut) clamp(4rem,9vw,7rem);max-width:var(--wrap);margin:0 auto}
.hero h1{max-width:18ch}
.hero-sub{font-size:1.15rem;color:rgba(255,255,255,.85);max-width:58ch;margin-bottom:1.1rem}
.hero-stage{font-family:var(--mono);font-size:.82rem;letter-spacing:.06em;text-transform:uppercase;color:var(--obra);max-width:62ch;margin:0 0 2rem}
.hero-cta{display:flex;flex-wrap:wrap;gap:.8rem}
.btn-ghost-light{color:#fff;border-color:rgba(255,255,255,.6)}
.btn-ghost-light:hover{background:#fff;color:var(--grafito);border-color:#fff}
.stats-note{font-family:var(--mono);font-size:.8rem;color:var(--hormigon);margin:1.6rem 0 0}
.project-hero .hero-inner{padding:clamp(4rem,9vw,6.5rem) var(--gut) clamp(3rem,6vw,4.5rem)}
.project-hero h1{max-width:22ch}

/* stats */
.stats{background:var(--paper);border-bottom:1px solid var(--line);padding:4rem 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;margin-top:2rem}
.stat{border-left:3px solid var(--obra);padding:.2rem 0 .2rem 1rem}
.stat-n{font-size:clamp(1.8rem,3.4vw,2.6rem);font-weight:700;letter-spacing:-.02em;line-height:1.1}
.stat-u{font-family:var(--mono);font-size:.78rem;color:var(--hormigon);text-transform:uppercase;letter-spacing:.06em;margin:.3rem 0}
.stat-l{font-weight:500}
@media (max-width:860px){.stats-grid{grid-template-columns:repeat(2,1fr)}}

/* sections */
section{padding:4.5rem 0}
.section-head{display:grid;grid-template-columns:1fr auto;gap:1rem 3rem;align-items:end;margin-bottom:2.2rem}
.section-head .section-title,.section-head .lead{grid-column:1}
.section-head .btn{grid-column:2;grid-row:1/3;align-self:start;justify-self:end;white-space:nowrap}
@media (max-width:760px){.section-head{grid-template-columns:1fr}.section-head .btn{grid-column:1;grid-row:auto;justify-self:start}}

/* portfolio cards */
.pgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}
.pgrid-2{grid-template-columns:repeat(2,1fr);gap:1.5rem}
@media (max-width:900px){.pgrid,.pgrid-2{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.pgrid,.pgrid-2{grid-template-columns:1fr}}
.pcard{position:relative;display:block;border-radius:var(--r);overflow:hidden;background:var(--grafito-2);color:#fff;text-decoration:none;aspect-ratio:3/2}
.pcard-lg{aspect-ratio:16/10}
.pcard img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;opacity:.95}
.pcard:hover img{transform:scale(1.04)}
.pcard-body{position:absolute;inset:auto 0 0 0;padding:1.1rem 1.2rem;background:linear-gradient(to top,rgba(27,30,33,.92),rgba(27,30,33,0));display:flex;flex-direction:column;gap:.15rem}
.pcard-type{font-family:var(--mono);font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;color:var(--obra)}
.pcard-name{font-weight:600;font-size:1.12rem;line-height:1.2}
.pcard-meta{font-size:.85rem;color:rgba(255,255,255,.75)}

/* services */
.services{background:var(--grafito);color:#fff}
.services .section-title{color:#fff}
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}
@media (max-width:900px){.svc-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.svc-grid{grid-template-columns:1fr}}
.svc{background:var(--grafito-2);border:1px solid rgba(255,255,255,.08);border-top:3px solid var(--obra);border-radius:var(--r);padding:1.4rem 1.4rem 1.1rem}
.svc h3{font-size:1.1rem;margin-bottom:.6rem}
.svc p{color:rgba(255,255,255,.8);font-size:.95rem;margin:0}
.svc-closing{margin:2.2rem 0 0;font-size:1.05rem;color:rgba(255,255,255,.85);max-width:60ch}
.svc-family{margin-top:2.4rem}
.svc-family .kicker{margin-bottom:.3rem}
.svc-claim{font-size:1.2rem;font-weight:600;margin:0 0 1rem;color:#fff;max-width:40ch}
.svc-grid-auto{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.svc-deliv{margin-top:.8rem!important;font-family:var(--mono);font-size:.74rem;letter-spacing:.05em;text-transform:uppercase;color:#C9CCD0!important}
.svc-deliv span{color:var(--obra)}

/* team */
.team{background:var(--paper)}
.team-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:3rem;align-items:center}
@media (max-width:860px){.team-inner{grid-template-columns:1fr}}
.team-text p{color:var(--ink-2)}
.team-fig{margin:0;border-radius:var(--r);overflow:hidden}
.team-fig img{aspect-ratio:4/3;object-fit:cover;width:100%}

/* contact */
.contact{background:var(--bg);border-top:1px solid var(--line)}
.contact-inner{display:grid;grid-template-columns:.8fr 1.2fr;gap:3rem;align-items:start}
@media (max-width:860px){.contact-inner{grid-template-columns:1fr}}
.contact-list{list-style:none;padding:0;margin:1.5rem 0 0;display:grid;gap:.9rem}
.contact-list li{display:grid;gap:.1rem}
.contact-list a{color:var(--ink);text-decoration:none;font-weight:500}
.contact-list a:hover{color:var(--grafito);text-decoration:underline}
.contact-form{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:1.6rem}
.contact-form label{display:block;font-size:.85rem;font-weight:600;margin-bottom:1rem}
.contact-form label span{color:var(--obra)}
.contact-form input,.contact-form textarea{display:block;width:100%;margin-top:.35rem;padding:.7rem .8rem;font:inherit;font-size:1rem;border:1px solid #C9CDD1;border-radius:4px;background:#fff}
.contact-form input:focus,.contact-form textarea:focus{outline:2px solid var(--obra);outline-offset:1px;border-color:var(--obra)}
.f-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
@media (max-width:560px){.f-row{grid-template-columns:1fr}}
.hp{position:absolute;left:-9999px;opacity:0}
.form-status{margin:.9rem 0 0;font-size:.95rem;min-height:1.4em}
.form-status.ok{color:#1F7A4D}
.form-status.err{color:#B3261E}

/* page head / project */
.page-head{background:var(--grafito);color:#fff;padding:clamp(3.5rem,8vw,5.5rem) 0 3rem}
.page-head .lead{color:rgba(255,255,255,.82)}
.tagline{font-family:var(--mono);color:var(--obra);font-size:.95rem;margin-top:1.5rem}
.project-body{background:var(--paper);padding:3rem 0}
.project-grid{display:grid;grid-template-columns:1fr 1.4fr;gap:3rem}
@media (max-width:860px){.project-grid{grid-template-columns:1fr}}
.facts{margin:0;display:grid;gap:.9rem}
.fact{border-left:3px solid var(--obra);padding-left:.9rem}
.fact dt{font-family:var(--mono);font-size:.74rem;text-transform:uppercase;letter-spacing:.06em;color:var(--hormigon)}
.fact dd{margin:.1rem 0 0;font-weight:600}
.project-desc{font-size:1.1rem;color:var(--ink-2)}
.gallery{padding:0 0 3rem;background:var(--paper)}
.ggrid{display:grid;grid-template-columns:repeat(3,1fr);gap:.9rem}
@media (max-width:900px){.ggrid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.ggrid{grid-template-columns:1fr}}
.ggrid figure{margin:0;border-radius:var(--r);overflow:hidden;background:var(--line)}
.ggrid img{aspect-ratio:3/2;object-fit:cover;width:100%}
.ggrid figcaption{font-size:.82rem;color:var(--ink-2);padding:.5rem .7rem;background:var(--bg)}
.project-nav{padding:0 0 2rem;background:var(--paper)}
.pn{display:flex;justify-content:space-between;gap:1rem;border-top:1px solid var(--line);padding-top:1.4rem}
.pn a{text-decoration:none;font-weight:600;color:var(--grafito)}
.pn a:hover{color:var(--obra)}

/* footer */
.site-footer{background:var(--grafito);color:rgba(255,255,255,.85);padding:3rem 0 2rem}
.footer-inner{display:grid;grid-template-columns:1.2fr .8fr;gap:2rem;align-items:start}
@media (max-width:760px){.footer-inner{grid-template-columns:1fr}}
.footer-brand{display:flex;gap:.8rem;align-items:center}
.footer-tag{font-size:.85rem;color:var(--hormigon);margin-top:.15rem}
.footer-contact{list-style:none;margin:0;padding:0;display:grid;gap:.4rem}
.footer-contact a{color:#fff;text-decoration:none}
.footer-contact a:hover{color:var(--obra)}
.footer-legal{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.1);padding-top:1.2rem;font-family:var(--mono);font-size:.78rem;color:var(--hormigon)}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto}}