/* ============================================
   5TC GROUP — Design System v3
   Palette: #FFF 60%, #000, #000DF2, #002B81, #FF6700
   Font: Inter
   Porsche energy. Tech + warmth. Client-focused.
   ============================================ */

/* --- RESET & BASE --- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;color:#2D2D2D;background:#FFF;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input,textarea,select{font:inherit;border:none;outline:none;background:none}

/* --- TOKENS --- */
:root{
  --black:#000;--white:#FFF;
  --blue:#000DF2;--blue-dark:#002B81;--blue-hover:#0008C2;--blue-light:rgba(0,13,242,.06);
  --accent:#FF6700;--accent-hover:#E65C00;--accent-light:rgba(255,103,0,.08);
  --gray-900:#1A1A1A;--gray-700:#374151;--gray-600:#6B7280;--gray-400:#9CA3AF;--gray-200:#E5E7EB;--gray-100:#F5F5F7;--gray-50:#FAFAFA;
  --green:#059669;--red:#DC2626;
  --max-w:1200px;
  --transition:250ms cubic-bezier(.4,0,.2,1);
  --radius:6px;
}

/* --- TYPOGRAPHY --- */
h1,h2,h3,h4{font-weight:700;line-height:1.1;color:var(--gray-900)}
h1{font-size:clamp(2.5rem,5.5vw,4rem);letter-spacing:-.03em}
h2{font-size:clamp(1.75rem,3.5vw,2.75rem);letter-spacing:-.02em}
h3{font-size:clamp(1.25rem,2.5vw,1.5rem);letter-spacing:-.01em}
h4{font-size:1.125rem;font-weight:600}
p{color:var(--gray-700);max-width:60ch;line-height:1.7}
.lead{font-size:1.125rem;color:var(--gray-600);line-height:1.7}
.text-sm{font-size:.875rem;color:var(--gray-600)}
.text-xs{font-size:.75rem;color:var(--gray-400)}
.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-size:.6875rem;font-weight:700;color:var(--blue)}
.text-center{text-align:center}
.text-white{color:var(--white)}
.text-white p,.text-white .lead,.text-white .text-sm{color:rgba(255,255,255,.65)}
.text-white h1,.text-white h2,.text-white h3,.text-white h4{color:var(--white)}
.text-accent{color:var(--accent)}

/* --- LAYOUT --- */
.container{width:100%;max-width:var(--max-w);margin:0 auto;padding:0 1.5rem}
.narrow{max-width:720px;margin:0 auto}
.section{padding:5rem 0}
.section-lg{padding:7rem 0}
.grid{display:grid;gap:2rem}
.grid-2{grid-template-columns:1fr}
.grid-3{grid-template-columns:1fr}
.grid-4{grid-template-columns:1fr}
.flex{display:flex;align-items:center}
.flex-between{display:flex;align-items:center;justify-content:space-between}
.gap-1{gap:1rem}.gap-2{gap:2rem}.gap-3{gap:3rem}

@media(min-width:640px){
  .grid-2{grid-template-columns:repeat(2,1fr)}
}
@media(min-width:768px){
  .grid-3{grid-template-columns:repeat(3,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .section{padding:6rem 0}
  .section-lg{padding:8rem 0}
}
@media(min-width:1024px){
  .grid-4{grid-template-columns:repeat(4,1fr)}
}

/* --- BACKGROUNDS --- */
.bg-white{background:var(--white)}
.bg-gray{background:var(--gray-50)}
.bg-dark{background:var(--gray-900);color:var(--white)}
.bg-black{background:var(--black);color:var(--white)}
.bg-blue{background:var(--blue);color:var(--white)}
.bg-blue-subtle{background:var(--blue-light)}
.bg-accent-subtle{background:var(--accent-light)}

/* --- BUTTONS --- */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:.8125rem 2rem;font-size:.875rem;font-weight:600;letter-spacing:.02em;border-radius:var(--radius);transition:var(--transition);cursor:pointer;white-space:nowrap;gap:.5rem}
.btn-primary{background:var(--accent);color:var(--white);box-shadow:0 2px 8px rgba(255,103,0,.25)}
.btn-primary:hover{background:var(--accent-hover);box-shadow:0 4px 16px rgba(255,103,0,.35);transform:translateY(-1px)}
.btn-blue{background:var(--blue);color:var(--white)}
.btn-blue:hover{background:var(--blue-hover)}
.btn-outline{background:transparent;color:var(--gray-900);border:1.5px solid var(--gray-200)}
.btn-outline:hover{border-color:var(--gray-900);background:var(--gray-50)}
.btn-outline-white{background:transparent;color:var(--white);border:1.5px solid rgba(255,255,255,.25)}
.btn-outline-white:hover{border-color:var(--white);background:rgba(255,255,255,.06)}
.btn-white{background:var(--white);color:var(--gray-900)}
.btn-white:hover{background:var(--gray-100)}
.btn-ghost{background:transparent;color:var(--blue);padding:.5rem 0;letter-spacing:0;text-transform:none;font-weight:600}
.btn-ghost:hover{color:var(--blue-hover)}
.btn-ghost::after{content:'→';margin-left:.375rem;transition:var(--transition)}
.btn-ghost:hover::after{margin-left:.625rem}
.btn-lg{padding:1rem 2.5rem;font-size:.9375rem}
.btn-sm{padding:.5rem 1.25rem;font-size:.8125rem}

/* --- HEADER --- */
.header{position:fixed;top:0;left:0;right:0;z-index:100;padding:1rem 0;transition:var(--transition);background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid transparent}
.header.scrolled{border-bottom-color:var(--gray-200);padding:.75rem 0}
.header-inner{display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:.625rem}
.logo img{height:2.25rem;width:auto}
.logo-text{font-size:1rem;font-weight:800;color:var(--gray-900);letter-spacing:.04em}
.nav{display:none;gap:2.25rem}
.nav a{color:var(--gray-600);font-size:.8125rem;font-weight:500;transition:var(--transition);letter-spacing:.01em}
.nav a:hover,.nav a.active{color:var(--gray-900)}
.nav-cta{margin-left:.75rem}
.menu-toggle{display:flex;flex-direction:column;gap:5px;cursor:pointer;padding:.5rem;z-index:101}
.menu-toggle span{width:22px;height:1.5px;background:var(--gray-900);transition:var(--transition)}
.menu-toggle.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.menu-toggle.active span:nth-child(2){opacity:0}
.menu-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

.nav-mobile{position:fixed;top:0;right:-100%;width:100%;height:100vh;background:rgba(255,255,255,.98);backdrop-filter:blur(16px);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2rem;transition:var(--transition);z-index:100}
.nav-mobile.open{right:0}
.nav-mobile a{color:var(--gray-900);font-size:1.25rem;font-weight:500}

@media(min-width:768px){
  .nav{display:flex}
  .menu-toggle{display:none}
  .nav-mobile{display:none}
}

/* --- HERO --- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;background:var(--gray-50)}
.hero-content{position:relative;z-index:2;max-width:680px}
.hero-content .eyebrow{margin-bottom:1.25rem;display:inline-block}
.hero-content h1{margin-bottom:1.5rem}
.hero-content .lead{margin-bottom:2.5rem}
.hero-actions{display:flex;flex-wrap:wrap;gap:1rem}
.hero-bg{position:absolute;inset:0;z-index:1;overflow:hidden}

/* Subtle animated gradient background */
.hero-gradient{position:absolute;inset:0;background:
  radial-gradient(ellipse 80% 60% at 70% 40%, rgba(0,13,242,.05) 0%, transparent 70%),
  radial-gradient(ellipse 50% 50% at 20% 80%, rgba(255,103,0,.04) 0%, transparent 60%),
  linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%)}

/* Hero for service/inner pages */
.hero-inner{min-height:50vh}
.hero-inner .hero-content{max-width:620px}

/* --- TRUST BAR --- */
.trust{padding:2.5rem 0;border-bottom:1px solid var(--gray-200)}
.trust-label{color:var(--gray-400);font-size:.6875rem;text-transform:uppercase;letter-spacing:.12em;font-weight:600;margin-bottom:1.25rem;text-align:center}
.trust-logos{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:2rem 3rem;opacity:.4;filter:grayscale(1);transition:var(--transition)}
.trust-logos img{height:1.75rem;width:auto}
.trust-logos:hover{opacity:.7;filter:grayscale(.5)}

/* --- SERVICE CARDS --- */
.service-card{padding:2rem;background:var(--white);border:1px solid var(--gray-200);border-radius:var(--radius);transition:var(--transition)}
.service-card:hover{border-color:var(--blue);box-shadow:0 8px 32px rgba(0,0,0,.06);transform:translateY(-2px)}
.service-card-icon{width:2.5rem;height:2.5rem;margin-bottom:1.25rem;padding:.5rem;background:var(--blue-light);border-radius:var(--radius);display:flex;align-items:center;justify-content:center}
.service-card-icon svg{width:1.25rem;height:1.25rem;stroke:var(--blue);stroke-width:2;fill:none}
.service-card h3{margin-bottom:.5rem}
.service-card p{color:var(--gray-600);font-size:.9375rem;margin-bottom:1.25rem;line-height:1.6}

/* --- PROCESS STEPS --- */
.process-step{display:flex;gap:1.25rem;align-items:flex-start}
.process-num{flex-shrink:0;width:2.5rem;height:2.5rem;display:flex;align-items:center;justify-content:center;background:var(--accent);color:var(--white);font-weight:700;font-size:.8125rem;border-radius:50%}
.process-text h4{margin-bottom:.25rem}
.process-text p{color:var(--gray-600);font-size:.9375rem}

/* --- PORTFOLIO --- */
.portfolio-card{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--gray-100);border-radius:var(--radius)}
.portfolio-card img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.portfolio-card:hover img{transform:scale(1.03)}
.portfolio-card-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.75) 0%,transparent 50%);display:flex;flex-direction:column;justify-content:flex-end;padding:1.5rem;opacity:0;transition:var(--transition)}
.portfolio-card:hover .portfolio-card-overlay{opacity:1}
.portfolio-card-overlay h3{color:var(--white);font-size:1rem;margin-bottom:.125rem}
.portfolio-card-overlay span{color:rgba(255,255,255,.6);font-size:.8125rem}

/* --- STATS --- */
.stat{text-align:center;padding:2rem 1rem}
.stat-num{font-size:clamp(2.25rem,5vw,3rem);font-weight:800;color:var(--blue);line-height:1}
.stat-label{color:var(--gray-600);font-size:.8125rem;margin-top:.5rem}

/* --- TESTIMONIAL --- */
.testimonial{max-width:640px;margin:0 auto;text-align:center}
.testimonial blockquote{font-size:clamp(1.125rem,2vw,1.375rem);color:var(--gray-900);line-height:1.7;margin-bottom:1.5rem;font-style:normal}
.testimonial blockquote::before{content:'"';display:block;font-size:4rem;line-height:1;color:var(--accent);font-family:Georgia,serif;margin-bottom:-.5rem}
.testimonial .cite-name{font-weight:600;color:var(--gray-900);font-size:.9375rem}
.testimonial .cite-role{color:var(--gray-600);font-size:.8125rem}

/* --- PRICING --- */
.pricing-card{padding:2.5rem;border:1px solid var(--gray-200);border-radius:var(--radius);text-align:center;background:var(--white)}
.pricing-card.featured{border-color:var(--accent);position:relative;box-shadow:0 8px 32px rgba(255,103,0,.1)}
.pricing-card.featured::before{content:'RECOMENDADO';position:absolute;top:0;left:50%;transform:translate(-50%,-50%);background:var(--accent);color:var(--white);padding:.375rem 1.25rem;font-size:.625rem;font-weight:700;letter-spacing:.12em;border-radius:var(--radius)}
.pricing-card h3{margin-bottom:.25rem}
.pricing-card .price{font-size:2.5rem;font-weight:800;color:var(--gray-900);margin:.75rem 0}
.pricing-card .price span{font-size:.875rem;font-weight:400;color:var(--gray-600)}
.pricing-card ul{text-align:left;margin:1.5rem 0 2rem}
.pricing-card li{padding:.4375rem 0;font-size:.875rem;color:var(--gray-600);display:flex;align-items:flex-start;gap:.5rem}
.pricing-card li::before{content:'';flex-shrink:0;width:1.125rem;height:1.125rem;margin-top:.125rem;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%23059669'%3E%3Cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z'/%3E%3C/svg%3E") center/contain no-repeat}

/* --- FAQ --- */
.faq-item{border-bottom:1px solid var(--gray-200);padding:1.25rem 0}
.faq-q{display:flex;justify-content:space-between;align-items:center;cursor:pointer;gap:1rem}
.faq-q h4{font-weight:600;font-size:1rem}
.faq-q svg{flex-shrink:0;width:1.25rem;height:1.25rem;transition:var(--transition);color:var(--gray-400)}
.faq-item.open .faq-q svg{transform:rotate(180deg);color:var(--blue)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:500px}
.faq-a p{padding-top:.75rem;color:var(--gray-600);font-size:.9375rem;line-height:1.7}

/* --- FORMS --- */
.form-group{margin-bottom:1.25rem}
.form-group label{display:block;font-size:.8125rem;font-weight:600;color:var(--gray-900);margin-bottom:.5rem}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:.8125rem 1rem;border:1.5px solid var(--gray-200);font-size:.9375rem;color:var(--gray-900);background:var(--white);border-radius:var(--radius);transition:var(--transition)}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-light)}
.form-group textarea{min-height:120px;resize:vertical}
.form-group select{-webkit-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 1rem center}

/* --- CTA SECTION --- */
.cta-section{padding:5rem 0;text-align:center}
.cta-section h2{margin-bottom:.75rem}
.cta-section .lead{margin:0 auto 2rem;max-width:480px}

/* --- FOOTER --- */
.footer{background:var(--gray-900);color:var(--white);padding:4rem 0 2rem}
.footer-grid{display:grid;grid-template-columns:1fr;gap:2.5rem;margin-bottom:3rem}
.footer-brand p{color:rgba(255,255,255,.4);font-size:.875rem;margin-top:.75rem;max-width:280px}
.footer h4{font-size:.6875rem;text-transform:uppercase;letter-spacing:.12em;color:rgba(255,255,255,.3);margin-bottom:1rem}
.footer a{color:rgba(255,255,255,.6);font-size:.875rem;display:block;padding:.25rem 0;transition:var(--transition)}
.footer a:hover{color:var(--white)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:2rem;display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem}
.footer-bottom p,.footer-bottom a{color:rgba(255,255,255,.25);font-size:.75rem}

@media(min-width:768px){
  .footer-grid{grid-template-columns:2fr 1fr 1fr 1fr}
}

/* --- WHATSAPP FLOAT --- */
.whatsapp{position:fixed;bottom:1.5rem;right:1.5rem;width:3.25rem;height:3.25rem;background:#25D366;border-radius:50%;display:flex;align-items:center;justify-content:center;z-index:90;transition:var(--transition);box-shadow:0 4px 12px rgba(0,0,0,.15)}
.whatsapp:hover{transform:scale(1.08);box-shadow:0 6px 20px rgba(0,0,0,.2)}
.whatsapp svg{width:1.375rem;height:1.375rem;fill:var(--white)}

/* --- DIVIDER --- */
.divider{width:3rem;height:3px;background:var(--accent);border-radius:2px}
.divider-center{margin-left:auto;margin-right:auto}

/* --- UTILITIES --- */
.mt-1{margin-top:1rem}.mt-2{margin-top:2rem}.mt-3{margin-top:3rem}
.mb-1{margin-bottom:1rem}.mb-2{margin-bottom:2rem}.mb-3{margin-bottom:3rem}
.mx-auto{margin-left:auto;margin-right:auto}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* --- ANIMATIONS --- */
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
.fade-up{animation:fadeUp .5s ease forwards}
.delay-1{animation-delay:.1s}.delay-2{animation-delay:.2s}.delay-3{animation-delay:.3s}