/* ===== TOKENS ===== */
:root{
  --bg:#0A0B0D;
  --bg-alt:#0C0E11;
  --surface:#131519;
  --surface-2:#181B20;
  --border:#22262C;
  --border-soft:#1A1D22;
  --text:#F3F4F6;
  --text-muted:#98A0AB;
  --text-dim:#5C6470;
  --accent:#5B7FFF;
  --accent-dim:rgba(91,127,255,0.12);
  --font-display:'Space Grotesk',sans-serif;
  --font-body:'Inter',sans-serif;
  --font-mono:'IBM Plex Mono',monospace;
  --container:1180px;
}

*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important;}
}

a{color:inherit;text-decoration:none;}
ul{list-style:none;}
img{max-width:100%;display:block;}

.grain{
  position:fixed;inset:0;pointer-events:none;z-index:2;opacity:0.02;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.progress-bar{
  position:fixed;top:0;left:0;height:2px;background:var(--accent);
  width:0%;z-index:1000;transition:width 0.1s linear;
}

/* ===== BUTTONS ===== */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 28px;border-radius:10px;
  font-family:var(--font-body);font-weight:600;font-size:14.5px;
  border:1px solid transparent;cursor:pointer;
  transition:transform 0.25s ease, background 0.25s ease, border-color 0.25s ease, color .25s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#0A0B0D;}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(91,127,255,0.25);}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--border);}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);}

/* ===== NAV ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(10,11,13,0.75);backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .3s ease, background .3s ease;
}
.nav.scrolled{border-bottom-color:var(--border-soft);}
.nav-inner{
  max-width:var(--container);margin:0 auto;padding:18px 32px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.nav-logo{display:flex;align-items:center;gap:14px;}
.nav-logo-mark{
  font-family:var(--font-display);font-weight:700;font-size:19px;letter-spacing:0.5px;
}
.nav-logo-status{
  display:flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:1px;color:var(--text-dim);
}
.dot{width:6px;height:6px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 0 rgba(91,127,255,0.6);animation:pulse-dot 2s infinite;}
@keyframes pulse-dot{
  0%{box-shadow:0 0 0 0 rgba(91,127,255,0.45);}
  70%{box-shadow:0 0 0 6px rgba(91,127,255,0);}
  100%{box-shadow:0 0 0 0 rgba(91,127,255,0);}
}
.nav-links{display:flex;gap:26px;font-size:13.5px;color:var(--text-muted);}
.nav-links a{position:relative;padding:4px 0;transition:color .2s ease;font-weight:500;}
.nav-links a:hover{color:var(--text);}
.nav-links a::after{
  content:'';position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--accent);
  transition:width .25s ease;
}
.nav-links a:hover::after{width:100%;}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px;}
.nav-toggle span{width:22px;height:1.5px;background:var(--text);}

/* ===== HERO ===== */
.hero{
  position:relative;min-height:100vh;display:flex;flex-direction:column;
  align-items:center;justify-content:center;padding:150px 32px 90px;
  overflow:hidden;
}
.hero-grid{
  position:absolute;inset:0;z-index:0;opacity:0.3;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size:72px 72px;
  mask-image:radial-gradient(ellipse 70% 60% at 50% 40%, black 15%, transparent 75%);
}
.signal-bg{position:absolute;inset:0;width:100%;height:100%;z-index:0;opacity:0.7;}
.hero-content{position:relative;z-index:1;max-width:820px;text-align:center;}
.hero-quote{
  font-family:var(--font-display);font-style:italic;font-weight:400;
  font-size:clamp(1.05rem, 2vw, 1.3rem);color:var(--text-muted);
  margin-bottom:28px;max-width:560px;margin-left:auto;margin-right:auto;
}
.eyebrow{
  font-family:var(--font-mono);font-size:12px;letter-spacing:3px;color:var(--accent);
  margin-bottom:26px;
}
.hero-name{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(2.6rem, 7.5vw, 5.2rem);line-height:1;letter-spacing:-1.5px;
  margin-bottom:24px;color:var(--text);
}
.hero-title{
  font-family:var(--font-display);font-weight:500;
  font-size:clamp(1.4rem, 2.8vw, 2.1rem);line-height:1.3;letter-spacing:-0.2px;
  margin-bottom:28px;color:var(--text);
}
.accent-text{color:var(--accent);}
.hero-sub{
  font-size:16.5px;color:var(--text-muted);max-width:660px;margin:0 auto 44px;line-height:1.75;
}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}

.scroll-cue{
  position:absolute;bottom:40px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:10px;letter-spacing:2px;color:var(--text-dim);
  z-index:1;
}
.scroll-cue-line{width:1px;height:34px;background:linear-gradient(var(--accent), transparent);
  animation:scrolldown 1.8s ease-in-out infinite;}
@keyframes scrolldown{0%{opacity:0;transform:scaleY(0);transform-origin:top;}
  50%{opacity:1;transform:scaleY(1);transform-origin:top;}
  100%{opacity:0;transform:scaleY(1);transform-origin:bottom;}}

/* ===== SECTIONS ===== */
.section{padding:150px 32px;position:relative;}
.section-alt{background:var(--bg-alt);}
.section-inner{max-width:var(--container);margin:0 auto;}
.section-head{margin-bottom:72px;max-width:640px;}
.section-tag{
  font-family:var(--font-mono);font-size:12px;letter-spacing:2px;color:var(--accent);
  display:block;margin-bottom:16px;
}
.section-head h2{
  font-family:var(--font-display);font-weight:600;font-size:clamp(1.8rem,3.2vw,2.5rem);
  letter-spacing:-0.3px;margin-bottom:16px;
}
.section-desc{color:var(--text-muted);font-size:16px;}
.contact-closing{max-width:560px;}
.section-head-center{margin-left:auto;margin-right:auto;text-align:center;}

/* reveal animation */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .7s ease, transform .7s ease;}
.reveal.in-view{opacity:1;transform:translateY(0);}

/* ===== ABOUT ===== */
.about-body{max-width:740px;}
.lead{font-size:19px;color:var(--text);margin-bottom:24px;line-height:1.65;font-weight:500;}
.about-body p{color:var(--text-muted);margin-bottom:22px;font-size:16px;}
.about-body strong{color:var(--text);font-weight:600;}
.about-facts{
  display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:52px;
  padding-top:44px;border-top:1px solid var(--border-soft);
}
.fact{display:flex;flex-direction:column;gap:10px;}
.fact-num{font-family:var(--font-display);font-size:2.2rem;font-weight:600;color:var(--accent);}
.fact-label{font-size:13.5px;color:var(--text-muted);line-height:1.5;}

/* ===== HOW I WORK (flow) ===== */
.flow{
  display:flex;justify-content:space-between;gap:16px;position:relative;
  padding-top:8px;
}
.flow::before{
  content:'';position:absolute;top:34px;left:8%;right:8%;height:1px;background:var(--border);z-index:0;
}
.flow-step{
  flex:1;display:flex;flex-direction:column;align-items:center;text-align:center;
  position:relative;z-index:1;padding:0 8px;
}
.flow-circle{
  width:56px;height:56px;border-radius:50%;background:var(--bg-alt);
  border:1px solid var(--border);display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-size:14px;color:var(--accent);margin-bottom:20px;
  transition:border-color .3s ease, transform .3s ease;
}
.flow-step:hover .flow-circle{border-color:var(--accent);transform:scale(1.06);}
.flow-step h3{font-family:var(--font-display);font-size:1rem;font-weight:600;margin-bottom:8px;}
.flow-step p{font-size:13.5px;color:var(--text-muted);}

/* ===== TIMELINE ===== */
.timeline{position:relative;}
.tl-item{
  display:grid;grid-template-columns:170px 40px 1fr;gap:0;position:relative;padding-bottom:64px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-time{
  font-family:var(--font-mono);font-size:12.5px;color:var(--text-dim);padding-top:4px;letter-spacing:0.5px;
}
.tl-node{position:relative;display:flex;justify-content:center;}
.tl-node::before{
  content:'';position:absolute;top:20px;bottom:-64px;width:1px;background:var(--border);
}
.tl-item:last-child .tl-node::before{display:none;}
.tl-dot{width:11px;height:11px;border-radius:50%;background:var(--surface-2);
  border:2px solid var(--text-dim);margin-top:4px;z-index:1;}
.tl-dot-current{border-color:var(--accent);background:var(--accent);
  box-shadow:0 0 0 4px var(--accent-dim);}
.tl-content{padding-bottom:8px;}
.tl-badge{
  display:inline-block;font-family:var(--font-mono);font-size:11px;letter-spacing:1px;
  color:var(--accent);background:var(--accent-dim);padding:5px 12px;border-radius:100px;margin-bottom:16px;
}
.tl-content h3{font-family:var(--font-display);font-size:1.4rem;font-weight:600;margin-bottom:18px;}

.pir{display:flex;flex-direction:column;gap:14px;max-width:680px;}
.pir-row{font-size:14.5px;color:var(--text-muted);line-height:1.65;}
.pir-row span{
  display:block;font-family:var(--font-mono);font-size:10.5px;letter-spacing:1.2px;
  color:var(--accent);margin-bottom:5px;text-transform:uppercase;
}
.pir-mini{display:flex;flex-direction:column;gap:11px;}
.pir-mini div{font-size:13.5px;color:var(--text-muted);line-height:1.5;}
.pir-mini span{
  display:inline;font-family:var(--font-mono);font-size:10px;letter-spacing:1px;
  color:var(--accent);text-transform:uppercase;margin-right:6px;
}

.education-row{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:80px;
}
.edu-card{
  background:var(--surface);border:1px solid var(--border-soft);border-radius:14px;padding:26px;
}
.edu-tag{font-family:var(--font-mono);font-size:10.5px;letter-spacing:1.5px;color:var(--accent);}
.edu-card h4{font-family:var(--font-display);font-size:1.1rem;margin:12px 0 6px;font-weight:600;}
.edu-card p{color:var(--text-muted);font-size:13.5px;}

/* ===== CASE STUDIES ===== */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.case-card{
  background:var(--surface);border:1px solid var(--border-soft);border-radius:18px;
  padding:36px;transition:border-color .3s ease, transform .3s ease;
}
.case-card:hover{border-color:var(--accent);transform:translateY(-4px);}
.case-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px;flex-wrap:wrap;gap:10px;}
.case-code{
  font-family:var(--font-mono);font-size:13px;color:var(--accent);letter-spacing:0.5px;
  background:var(--accent-dim);padding:5px 12px;border-radius:6px;
}
.case-tag{font-family:var(--font-mono);font-size:11px;color:var(--text-dim);letter-spacing:0.5px;}

/* ===== LOGO STRIP (empresas) ===== */
.logo-strip{
  display:flex;flex-wrap:wrap;justify-content:center;gap:16px;
}
.logo-mark{
  font-family:var(--font-display);font-weight:600;font-size:15px;letter-spacing:1px;
  color:var(--text-muted);border:1px solid var(--border-soft);border-radius:10px;
  padding:16px 28px;transition:border-color .3s ease, color .3s ease, transform .3s ease;
}
.logo-mark:hover{border-color:var(--accent);color:var(--text);transform:translateY(-2px);}

/* ===== BUILDER ===== */
.builder-inner{max-width:680px;margin:0 auto;text-align:center;}
.builder-text{color:var(--text-muted);font-size:16.5px;line-height:1.75;}

/* ===== CONTACT STATEMENT ===== */
.contact-statement{
  font-family:var(--font-display);font-style:italic;font-weight:500;
  font-size:clamp(1.3rem, 2.6vw, 1.9rem);line-height:1.5;color:var(--text);
  max-width:760px;margin:0 auto 64px;text-align:center;
}

.clients-strip{
  margin-top:64px;padding-top:44px;border-top:1px solid var(--border-soft);
  display:flex;flex-direction:column;gap:18px;align-items:center;text-align:center;
}
.clients-label{font-family:var(--font-mono);font-size:11px;letter-spacing:1.5px;color:var(--text-dim);}
.clients-list{display:flex;gap:14px;flex-wrap:wrap;justify-content:center;
  font-family:var(--font-mono);font-size:13px;color:var(--text-muted);letter-spacing:0.5px;}

/* ===== CONTRIBUTE (Qué aporto) ===== */
.contribute-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.contribute-card{
  display:flex;align-items:center;gap:16px;
  background:var(--surface);border:1px solid var(--border-soft);border-radius:14px;
  padding:24px 26px;font-size:15px;color:var(--text);transition:border-color .3s ease, transform .3s ease;
}
.contribute-card:hover{border-color:var(--accent);transform:translateY(-3px);}
.check{color:var(--accent);font-size:16px;flex-shrink:0;}

/* ===== CAPABILITIES ===== */
.capability-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:64px;
}
.capability-card{
  background:var(--surface);border:1px solid var(--border-soft);border-radius:14px;
  padding:22px 24px;transition:border-color .3s ease, transform .3s ease;
}
.capability-card:hover{border-color:var(--accent);transform:translateY(-3px);}
.capability-card h4{font-family:var(--font-display);font-size:1rem;font-weight:600;margin-bottom:8px;}
.capability-card p{font-size:13px;color:var(--text-muted);line-height:1.5;}

/* ===== TECHNOLOGIES ===== */
.tech-columns{
  display:grid;grid-template-columns:repeat(3,1fr);gap:36px 40px;
  padding-top:44px;border-top:1px solid var(--border-soft);
}
.tech-col-title{
  font-family:var(--font-mono);font-size:12px;letter-spacing:1.5px;color:var(--text-dim);
  margin-bottom:18px;text-transform:uppercase;
}
.tech-chip-list{display:flex;flex-wrap:wrap;gap:10px;}
.tech-chip{
  font-family:var(--font-mono);font-size:13px;color:var(--text);
  background:var(--bg);border:1px solid var(--border-soft);border-radius:8px;
  padding:8px 14px;transition:border-color .25s ease, transform .25s ease, color .25s ease;
}
.tech-chip:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);}

/* ===== CONTACT ===== */
.section-contact{position:relative;}
.signal-divider{width:100%;overflow:hidden;line-height:0;margin-bottom:0;}
.signal-divider svg{width:100%;height:60px;}
.contact-inner{padding-top:40px;}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;margin-top:20px;}
.contact-info{display:flex;flex-direction:column;gap:0;}
.contact-line{
  display:flex;flex-direction:column;gap:6px;padding:20px 0;border-bottom:1px solid var(--border-soft);
  transition:padding-left .25s ease;
}
a.contact-line:hover{padding-left:8px;color:var(--accent);}
.contact-label{font-family:var(--font-mono);font-size:10.5px;letter-spacing:1.5px;color:var(--text-dim);}
.contact-value{font-size:16px;font-weight:500;}
.contact-cv{margin-top:32px;width:fit-content;}

.contact-form{display:flex;flex-direction:column;gap:20px;}
.form-row{display:flex;flex-direction:column;gap:8px;}
.form-row label{font-family:var(--font-mono);font-size:11px;letter-spacing:1px;color:var(--text-dim);}
.form-row input, .form-row textarea{
  background:var(--surface);border:1px solid var(--border-soft);border-radius:10px;
  padding:13px 16px;color:var(--text);font-family:var(--font-body);font-size:14.5px;
  transition:border-color .25s ease;resize:vertical;
}
.form-row input:focus, .form-row textarea:focus{outline:none;border-color:var(--accent);}
.contact-form .btn{margin-top:6px;align-self:flex-start;}
.form-note{font-size:13px;color:var(--accent);min-height:18px;}

/* ===== FOOTER ===== */
.footer{padding:32px;border-top:1px solid var(--border-soft);}
.footer-inner{
  max-width:var(--container);margin:0 auto;display:flex;justify-content:space-between;
  font-size:13px;color:var(--text-dim);
}
.footer-mono{font-family:var(--font-mono);letter-spacing:1px;}

/* focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px;
}

/* ===== RESPONSIVE ===== */
@media (max-width:980px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .about-facts{grid-template-columns:1fr;}
  .education-row{grid-template-columns:1fr;}
  .flow{flex-direction:column;gap:36px;}
  .flow::before{display:none;}
  .case-grid{grid-template-columns:1fr;}
  .contribute-grid{grid-template-columns:1fr;}
  .capability-grid{grid-template-columns:repeat(2,1fr);}
  .tech-columns{grid-template-columns:repeat(2,1fr);}
  .contact-grid{grid-template-columns:1fr;gap:40px;}
  .tl-item{grid-template-columns:32px 1fr;}
  .tl-time{grid-column:1 / -1;order:-1;padding-bottom:10px;}
  .tl-node::before{top:20px;}
}
@media (max-width:560px){
  .section{padding:100px 20px;}
  .hero{padding:130px 20px 80px;}
  .nav-inner{padding:16px 20px;}
  .nav-actions{display:none;}
  .capability-grid{grid-template-columns:1fr;}
  .tech-columns{grid-template-columns:1fr;}
}

/* mobile menu open state */
.nav-links.open{
  display:flex;position:absolute;top:100%;left:0;right:0;background:var(--bg);
  flex-direction:column;padding:24px 32px;border-bottom:1px solid var(--border-soft);gap:18px;
}