/* =========================
   Line Proyectos — Static CSS
   ========================= */
:root{
  --bg:#ffffff;
  --fg:#0f0f10;
  --muted:#6b6770;
  --border:#e6e4e8;
  --secondary:#f4f3f5;
  --yellow:#FFC434;
  --graphite:#827E84;
  --shadow-card:0 10px 30px -12px rgba(15,15,16,.18);
  --shadow-elegant:0 30px 60px -20px rgba(15,15,16,.25);
  --font-display:"Archivo Black", Impact, sans-serif;
  --font-sans:"Hind", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--font-sans);
  color:var(--fg);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  line-height:1.55;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--font-display);font-weight:400;letter-spacing:-.01em;line-height:1.05;margin:0}
h1{font-size:clamp(2.5rem,6vw,4.5rem)}
h2{font-size:clamp(2rem,4vw,3rem)}
h3{font-size:1.25rem}
p{margin:0}

.container{max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.container{padding:0 40px}}

/* Nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:16px 20px}
@media(min-width:1024px){.nav-inner{padding:16px 40px}}
.brand{display:flex;align-items:center;gap:12px}
.brand img{height:40px;width:40px;border-radius:999px}
.brand-name{font-family:var(--font-display);font-size:1.05rem;line-height:1}
.brand-sub{font-size:10px;letter-spacing:.25em;color:var(--muted);font-weight:700;margin-top:2px}
.brand-sub-2{font-size:.75rem;color:var(--muted)}
.nav-links{display:none;gap:32px}
.nav-links a{font-size:.9rem;font-weight:500;color:#2a272d;transition:color .2s}
.nav-links a:hover{color:#000}
.nav-cta{display:none}
.nav-toggle{background:none;border:0;font-size:1.5rem;cursor:pointer}
@media(min-width:768px){
  .nav-links{display:flex}
  .nav-cta{display:inline-flex}
  .nav-toggle{display:none}
}
.nav-mobile{display:none;border-top:1px solid var(--border);padding:12px 20px;background:#fff}
.nav-mobile.open{display:flex;flex-direction:column;gap:8px}
.nav-mobile a{padding:8px 0;font-weight:500}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;font-size:.9rem;font-weight:600;border-radius:2px;border:0;cursor:pointer;transition:all .2s;text-align:center;justify-content:center}
.btn-primary{background:var(--yellow);color:#0f0f10}
.btn-primary:hover{filter:brightness(.95)}
.btn-dark{background:#0f0f10;color:#fff}
.btn-dark:hover{background:#2a272d}
.btn-outline{border:1px solid rgba(15,15,16,.15);background:transparent;color:#0f0f10}
.btn-outline:hover{background:var(--secondary)}

/* Hero */
.hero{padding:48px 0 80px;background:#fff;overflow:hidden}
@media(min-width:1024px){.hero{padding:80px 0 112px}}
.hero-grid{display:grid;gap:40px;grid-template-columns:1fr}
@media(min-width:1024px){.hero-grid{grid-template-columns:1fr 1fr;gap:32px}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(255,196,52,.18);padding:6px 12px;font-size:.7rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase}
.dot{width:6px;height:6px;background:var(--yellow);display:inline-block}
.hero h1{margin-top:24px}
.hl{background:var(--yellow);padding:0 .25em}
.lead{margin-top:24px;color:var(--muted);font-size:1.05rem;max-width:560px}
.hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:12px}
.stats{margin:48px 0 0;padding-top:32px;border-top:1px solid var(--border);display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.stats dt{font-family:var(--font-display);font-size:1.75rem}
.stats dd{margin:6px 0 0;font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}

/* Mosaic */
.hero-mosaic{display:grid;grid-template-columns:repeat(6,1fr);grid-template-rows:repeat(6,1fr);gap:10px;aspect-ratio:1/1}
.hero-mosaic .m{overflow:hidden}
.hero-mosaic img{width:100%;height:100%;object-fit:cover}
.m1{grid-column:span 4;grid-row:span 4}
.m2{grid-column:span 2;grid-row:span 2}
.m3{grid-column:span 2;grid-row:span 2}
.m4{grid-column:span 2;grid-row:span 2}
.m5{grid-column:span 2;grid-row:span 2}
.m6{grid-column:span 2;grid-row:span 2}
.bg-yellow{background:var(--yellow)}
.bg-graphite{background:var(--graphite)}
.bg-secondary{background:var(--secondary)}

/* Sections */
.kicker{font-size:.7rem;letter-spacing:.25em;text-transform:uppercase;color:var(--muted);font-weight:700}
.kicker-yellow{color:var(--yellow)}
.section-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:24px}
.section-head h2{margin-top:12px;max-width:640px}
.section-desc{color:var(--muted);max-width:380px}

/* Services */
.services{background:rgba(244,243,245,.5);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:80px 0}
@media(min-width:1024px){.services{padding:112px 0}}
.services-grid{margin-top:48px;display:grid;gap:20px;grid-template-columns:1fr}
@media(min-width:640px){.services-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.services-grid{grid-template-columns:repeat(3,1fr)}}
.card{position:relative;background:#fff;border:1px solid var(--border);overflow:hidden;transition:box-shadow .3s}
.card:hover{box-shadow:var(--shadow-card)}
.card-img{position:relative;aspect-ratio:4/3;overflow:hidden}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .7s}
.card:hover .card-img img{transform:scale(1.05)}
.card-img::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(130,126,132,.7),rgba(130,126,132,.1) 50%,transparent)}
.card-icon{position:absolute;left:16px;top:16px;width:40px;height:40px;background:var(--yellow);color:#0f0f10;display:flex;align-items:center;justify-content:center;z-index:2;font-size:1.1rem}
.card-body{padding:24px}
.card-body p{margin-top:8px;font-size:.9rem;color:var(--muted)}
.card-bar{position:absolute;left:0;bottom:0;height:3px;width:0;background:var(--yellow);transition:width .5s}
.card:hover .card-bar{width:100%}

/* About */
.about{padding:80px 0}
@media(min-width:1024px){.about{padding:112px 0}}
.about-grid{display:grid;gap:48px;grid-template-columns:1fr}
@media(min-width:1024px){.about-grid{grid-template-columns:5fr 7fr;gap:48px}}
.about-mosaic{display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(4,1fr);gap:8px;aspect-ratio:1/1}
.about-mosaic > div{overflow:hidden}
.about-mosaic img{width:100%;height:100%;object-fit:cover}
.am1{grid-column:span 3;grid-row:span 3}
.am2{grid-column:span 1;grid-row:span 2}
.am3{grid-column:span 1;grid-row:span 2}
.am4{grid-column:span 2;grid-row:span 1}
.am5{grid-column:span 2;grid-row:span 1}
.about-text h2{margin-top:12px}
.about-text > p{margin-top:24px;color:var(--muted);font-size:1.05rem}
.values{list-style:none;padding:0;margin:32px 0 0;display:grid;gap:16px}
@media(min-width:640px){.values{grid-template-columns:repeat(2,1fr)}}
.values li{border-left:2px solid var(--yellow);padding-left:16px}
.values strong{display:block;font-weight:600}
.values span{display:block;margin-top:4px;font-size:.875rem;color:var(--muted)}

/* Process */
.process{background:#0f0f10;color:#fff;padding:80px 0}
@media(min-width:1024px){.process{padding:112px 0}}
.process-head{max-width:640px}
.process-head h2{margin-top:12px;color:#fff}
.process-grid{margin-top:56px;display:grid;gap:1px;background:rgba(255,255,255,.15);grid-template-columns:1fr}
@media(min-width:640px){.process-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.process-grid{grid-template-columns:repeat(4,1fr)}}
.step{background:#0f0f10;padding:32px}
.step-n{font-family:var(--font-display);font-size:3rem;color:var(--yellow);line-height:1}
.step h3{margin-top:24px;color:#fff}
.step p{margin-top:8px;font-size:.875rem;color:rgba(255,255,255,.7)}

/* CTA */
.cta{background:var(--yellow);padding:80px 0;overflow:hidden}
@media(min-width:1024px){.cta{padding:112px 0}}
.cta-grid{display:grid;gap:40px;grid-template-columns:1fr}
@media(min-width:1024px){.cta-grid{grid-template-columns:1fr 1fr}}
.cta-icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;font-size:1.6rem}
.cta h2{margin-top:24px}
.cta-lead{margin-top:20px;font-size:1.1rem;color:rgba(15,15,16,.8);max-width:560px}
.contact-list{margin-top:32px;display:grid;gap:16px}
.contact-item{display:flex;align-items:center;gap:16px;font-weight:600}
.ci{width:48px;height:48px;background:#0f0f10;color:#fff;display:flex;align-items:center;justify-content:center}
.contact-item:hover span:last-child{text-decoration:underline}

/* Form */
.contact-form{background:#fff;padding:32px;box-shadow:var(--shadow-elegant)}
.contact-form h3{font-size:1.5rem}
.form-grid{margin-top:24px;display:grid;gap:16px}
.row-2{display:grid;gap:16px;grid-template-columns:1fr}
@media(min-width:640px){.row-2{grid-template-columns:1fr 1fr}}
.field label{font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;font-weight:600;color:var(--muted)}
.field input,.field textarea{margin-top:6px;width:100%;border:1px solid var(--border);background:#fff;padding:10px 12px;font-size:.9rem;font-family:inherit;outline:none;transition:border-color .2s;border-radius:0}
.field input:focus,.field textarea:focus{border-color:var(--yellow)}
.field textarea{resize:vertical;min-height:96px}
.form-status{margin:0;font-size:.85rem;min-height:1.2em}
.form-status.ok{color:#1f7a3a}
.form-status.err{color:#b00020}
#submitBtn[disabled]{opacity:.6;cursor:not-allowed}

/* Footer */
.footer{border-top:1px solid var(--border);background:#fff;padding:48px 0}
.footer-inner{display:flex;flex-direction:column;align-items:flex-start;gap:24px}
@media(min-width:768px){.footer-inner{flex-direction:row;align-items:center;justify-content:space-between}}
.copy{font-size:.75rem;color:var(--muted)}
.fb{font-size:.9rem;font-weight:600}
.fb:hover{text-decoration:underline}