/* =============================================================
   1. Tokens
   ============================================================= */
:root {
  --bg:      #0a0a0a;
  --bg-2:    #111111;
  --bg-3:    #161616;
  --ink:     #fafafa;
  --ink-2:   #d4d4d4;
  --mute:    #8a8a8a;
  --line:    rgba(250, 250, 250, 0.10);
  --line-2:  rgba(250, 250, 250, 0.18);
  --accent:  #2ee59d;
  --accent-ink: #06231a;

  --gradient-1: #0f9d63;
  --gradient-2: #1f4bff;
  --gradient-3: #2ee59d;

  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --serif: "Instrument Serif", "Times New Roman", Georgia, serif;
  --mono:  "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;

  --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-soft: cubic-bezier(0.25, 0.46, 0.45, 0.94);

  --nav-h: 72px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --container: 1240px;
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html {
  -webkit-text-size-adjust: 100%;
  overflow-x: clip;
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
  background: var(--bg);
  color-scheme: dark;
}
body {
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  overscroll-behavior-y: none;
}
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; padding: 0; }
p { text-wrap: pretty; }
h1, h2, h3 { font-weight: 500; line-height: 1.05; letter-spacing: -0.02em; text-wrap: balance; }
strong { font-weight: 500; color: var(--ink); }
::selection { background: var(--accent); color: var(--accent-ink); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 3px; }

/* =============================================================
   3. Utilities
   ============================================================= */
.skip-link {
  position: fixed; top: -100px; left: 1rem; z-index: 9999;
  padding: .6rem 1rem; background: var(--ink); color: var(--bg);
  border-radius: 6px; font-weight: 500;
}
.skip-link:focus { top: 1rem; }

.container { width: min(100% - 2 * var(--gutter), var(--container)); margin-inline: auto; }
.mono { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.06em; text-transform: uppercase; }
.accent { color: var(--accent); }

.kicker { color: var(--mute); margin-bottom: 1.25rem; }
.section { padding-block: clamp(5rem, 12vw, 9rem); position: relative; }
.section + .section { border-top: 1px solid var(--line); }
.section-title {
  font-size: clamp(2.2rem, 6vw, 4.6rem);
  max-width: 16ch;
  margin-bottom: clamp(2.5rem, 6vw, 4.5rem);
}
.section-title em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  color: var(--ink-2);
  letter-spacing: 0;
}

/* Defensive rule (gotcha A.4.5) — split-text elements never stay hidden */
.reveal[data-split] { opacity: 1; transform: none; }

/* =============================================================
   4. Buttons
   ============================================================= */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .85rem 1.4rem; border-radius: 999px;
  font-size: .95rem; font-weight: 500; line-height: 1;
  border: 1px solid var(--line-2);
  transition: transform .45s var(--ease-soft), background .3s, color .3s, border-color .3s, box-shadow .45s var(--ease-soft);
  white-space: nowrap;
}
.btn-primary { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 18px 40px rgba(46, 229, 157, 0.18); background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn-ghost { color: var(--ink); }
.btn-ghost:hover { transform: translateY(-3px); border-color: var(--ink); }
.btn:active { transform: translateY(-1px); transition-duration: .12s; }

/* =============================================================
   5. Nav
   ============================================================= */
.nav {
  position: fixed; top: 0; inset-inline: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center; gap: 2rem;
  padding-inline: var(--gutter);
  transition: background .4s var(--ease-out), box-shadow .4s var(--ease-out), backdrop-filter .4s;
}
.nav.is-scrolled {
  background: rgba(10, 10, 10, 0.72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  box-shadow: 0 1px 0 var(--line);
}
.nav-brand { font-size: 1.15rem; text-transform: none; letter-spacing: -0.02em; font-weight: 500; }
.nav-links { display: none; gap: 1.75rem; margin-left: auto; }
.nav-link { position: relative; font-size: .9rem; color: var(--ink-2); padding-block: .25rem; }
.nav-link::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 1px;
  background: var(--accent); transform: scaleX(0); transform-origin: right;
  transition: transform .45s var(--ease-soft);
}
.nav-link:hover { color: var(--ink); }
.nav-link:hover::after { transform: scaleX(1); transform-origin: left; }
.nav-cta {
  display: none; font-size: .9rem; font-weight: 500;
  padding: .55rem 1rem; border: 1px solid var(--line-2); border-radius: 999px;
  transition: background .3s, color .3s, border-color .3s;
}
.nav-cta:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.nav-toggle { margin-left: auto; padding: .5rem .8rem; border: 1px solid var(--line-2); border-radius: 999px; }
.nav-toggle[aria-expanded="true"] { background: var(--ink); color: var(--bg); }

.nav-mobile {
  position: fixed; inset: 0; z-index: 90;
  background: var(--bg);
  display: flex; flex-direction: column; justify-content: center; gap: 2.5rem;
  padding: calc(var(--nav-h) + 1rem) var(--gutter) 3rem;
  clip-path: inset(0 0 100% 0);
  transition: clip-path .65s var(--ease-soft);
}
.nav-mobile[aria-hidden="false"] { clip-path: inset(0); }
.nav-mobile nav { display: flex; flex-direction: column; gap: .35rem; }
.nav-mobile nav a {
  font-size: clamp(2rem, 9vw, 3rem); font-weight: 500; letter-spacing: -0.03em; line-height: 1.15;
  color: var(--ink-2); transition: color .3s, padding-left .4s var(--ease-soft);
}
.nav-mobile nav a:hover { color: var(--accent); padding-left: .5rem; }
.nav-mobile-cta { align-self: flex-start; padding: .9rem 1.4rem; border-radius: 999px; background: var(--ink); color: var(--bg); font-weight: 500; }

@media (min-width: 960px) {
  .nav-links, .nav-cta { display: inline-flex; }
  .nav-toggle, .nav-mobile { display: none; }
}

/* =============================================================
   6. Hero
   ============================================================= */
.hero {
  position: relative; isolation: isolate;
  min-height: 100vh; min-height: 100svh;
  display: flex; flex-direction: column; justify-content: center;
  padding: calc(var(--nav-h) + 3rem) var(--gutter) 6rem;
  overflow: clip;
}
.hero-gradient {
  position: absolute; inset: -10%; z-index: -2;
  background:
    radial-gradient(circle 38vmax at var(--mx, 62%) var(--my, 42%), var(--gradient-1) 0%, transparent 60%),
    radial-gradient(circle 46vmax at calc(var(--mx, 62%) + 14%) calc(var(--my, 42%) - 18%), var(--gradient-2) 0%, transparent 62%),
    radial-gradient(circle 34vmax at calc(var(--mx, 62%) - 22%) calc(var(--my, 42%) + 22%), var(--gradient-3) 0%, transparent 58%),
    var(--bg);
  filter: blur(46px) saturate(140%);
  opacity: .62;
  will-change: background;
}
.hero-grain {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  opacity: .14; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.5 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  background-size: 220px 220px;
}
.hero-inner { width: min(100%, var(--container)); margin-inline: auto; }
.hero .kicker { animation: riseIn .9s var(--ease-out) both .1s; }
.hero-title {
  font-size: clamp(2.8rem, 8.5vw, 6.6rem);
  font-weight: 600;
  line-height: .92;
  letter-spacing: -0.05em;
  margin: 0 0 2rem -0.04em;
  animation: riseIn 1.1s var(--ease-out) both .2s;
}
.hero-title .invert {
  display: inline-block; padding: 0 .06em; margin-left: -.06em;
  transition: background .25s, color .25s;
  -webkit-box-decoration-break: clone; box-decoration-break: clone;
}
@media (hover: hover) {
  .hero-title .invert:hover { background: var(--ink); color: var(--bg); }
  .hero-title .invert:hover .accent { color: var(--bg); }
}
.hero-quote {
  max-width: 34ch; margin-bottom: 2.5rem;
  animation: riseIn 1s var(--ease-out) both .4s;
}
.hero-quote p {
  font-family: var(--serif); font-style: italic;
  font-size: clamp(1.35rem, 2.6vw, 2rem);
  line-height: 1.25; color: var(--ink-2);
}
.hero-quote em { font-style: normal; color: var(--ink); }
.hero-quote.is-long { max-width: 44ch; }
.hero-quote.is-long p { font-size: clamp(1.15rem, 2vw, 1.55rem); }
.hero-quote cite { display: block; margin-top: .9rem; font-style: normal; color: var(--mute); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; animation: riseIn 1s var(--ease-out) both .55s; }

.hero-stack {
  position: absolute; left: var(--gutter); right: var(--gutter); bottom: 2rem;
  display: flex; flex-wrap: wrap; gap: .5rem 1.5rem;
  color: var(--mute);
  animation: riseIn 1s var(--ease-out) both .8s;
}
.hero-stack li { position: relative; padding-left: 1rem; }
.hero-stack li::before { content: ""; position: absolute; left: 0; top: .5em; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }
.hero-scroll { display: none; position: absolute; right: var(--gutter); bottom: 2rem; color: var(--mute); animation: riseIn 1s var(--ease-out) both .9s; }
@media (min-width: 720px) { .hero-scroll { display: block; } .hero-stack { right: 8rem; } }

@keyframes riseIn {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: none; }
}

/* =============================================================
   7. Perfil
   ============================================================= */
.perfil-grid { display: grid; gap: 3rem; align-items: start; }
.perfil-figure { position: relative; max-width: 380px; }
.perfil-figure img {
  width: 100%; aspect-ratio: 3 / 4; object-fit: cover;
  border-radius: 6px;
  filter: grayscale(1) contrast(1.08);
  transition: filter .8s var(--ease-soft);
}
.perfil-figure::after {
  content: ""; position: absolute; inset: 0; border-radius: 6px;
  background: linear-gradient(160deg, var(--gradient-3), var(--gradient-1));
  mix-blend-mode: multiply; opacity: .55; pointer-events: none;
  transition: opacity .8s var(--ease-soft);
}
@media (hover: hover) {
  .perfil-figure:hover img { filter: grayscale(0) contrast(1); }
  .perfil-figure:hover::after { opacity: 0; }
}
.perfil-figure figcaption { position: absolute; left: 0; bottom: -1.8rem; color: var(--mute); }
.manifesto {
  font-size: clamp(1.35rem, 2.6vw, 2.05rem);
  font-weight: 300; line-height: 1.35; letter-spacing: -0.01em;
  max-width: 34ch; margin-bottom: 1.75rem;
}
.manifesto-sub { font-size: 1.05rem; color: var(--ink-2); max-width: 58ch; font-weight: 300; }
@media (min-width: 960px) {
  .perfil-grid { grid-template-columns: 340px 1fr; gap: 5rem; }
  .perfil-figure { margin-top: .4rem; }
}

.stats {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem 1.5rem;
  margin-top: clamp(4rem, 8vw, 6rem); padding-top: 3rem; border-top: 1px solid var(--line);
}
.stat-num { display: block; font-size: clamp(2.6rem, 6vw, 4.4rem); font-weight: 500; letter-spacing: -0.04em; line-height: 1; font-variant-numeric: tabular-nums; }
.stat-label { display: block; color: var(--mute); margin-top: .5rem; }
@media (min-width: 720px) { .stats { grid-template-columns: repeat(4, 1fr); } }

/* =============================================================
   8. Stack
   ============================================================= */
.stack-grid { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.stack-block { background: var(--bg); padding: 2rem 1.75rem 2.25rem; transition: background .4s; }
.stack-block:hover { background: var(--bg-2); }
.stack-block h3 { font-size: 1.3rem; margin-bottom: .75rem; }
.stack-block p { color: var(--ink-2); font-weight: 300; margin-bottom: 1.25rem; max-width: 40ch; }
.stack-block ul { display: flex; flex-wrap: wrap; gap: .4rem; }
.stack-block li { padding: .3rem .6rem; border: 1px solid var(--line-2); border-radius: 4px; color: var(--ink-2); transition: border-color .3s, color .3s; }
.stack-block:hover li { border-color: rgba(46, 229, 157, .35); }
@media (min-width: 720px) { .stack-grid { grid-template-columns: repeat(2, 1fr); } }

/* =============================================================
   8b. Arquitectura de este sitio
   ============================================================= */
.arq-intro { font-size: 1.1rem; font-weight: 300; color: var(--ink-2); max-width: 60ch; margin-top: -1.5rem; margin-bottom: 3rem; }
.arq-figure { margin-bottom: 3rem; }
.arq-scroll { overflow-x: auto; overflow-y: visible; -webkit-overflow-scrolling: touch; padding-bottom: .5rem; }
.arq-svg { display: block; width: 100%; min-width: 860px; height: auto; font-family: var(--mono); }
.arq-figure figcaption { color: var(--mute); margin-top: .75rem; }
.arq-lane { fill: var(--mute); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.arq-hair { stroke: var(--line); stroke-width: 1; }
.arq-cloud { fill: rgba(250, 250, 250, .02); stroke: var(--line-2); stroke-width: 1; stroke-dasharray: 6 6; }
.arq-box { fill: var(--bg-2); stroke: var(--line-2); stroke-width: 1; }
.arq-box-main { stroke: rgba(46, 229, 157, .55); }
.arq-box-dim { fill: var(--bg); stroke-dasharray: 4 4; }
.arq-h { fill: var(--ink); font-family: var(--sans); font-size: 19px; font-weight: 500; letter-spacing: -0.01em; }
.arq-t { fill: var(--ink-2); font-size: 12.5px; }
.arq-lbl { fill: var(--mute); font-size: 11px; letter-spacing: .06em; text-transform: uppercase; }
.arq-flow { fill: none; stroke: var(--accent); stroke-width: 1.5; stroke-dasharray: 6 5; animation: flowDash 1.4s linear infinite; }
.arq-deploy { fill: none; stroke: var(--mute); stroke-width: 1.25; stroke-dasharray: 3 5; }
@keyframes flowDash { to { stroke-dashoffset: -22; } }
.arq-grid { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.arq-note { background: var(--bg); padding: 2rem 1.75rem; }
.arq-note h3 { font-size: 1.2rem; margin-bottom: 1rem; }
.arq-note ul { display: grid; gap: .9rem; }
.arq-note li { color: var(--ink-2); font-weight: 300; font-size: .98rem; padding-left: 1.1rem; position: relative; }
.arq-note li::before { content: ""; position: absolute; left: 0; top: .6em; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }
.arq-note code { font-family: var(--mono); font-size: .85em; color: var(--ink); }
@media (min-width: 720px) { .arq-grid { grid-template-columns: 1fr 1fr; } }

/* =============================================================
   9. Experiencia (filas expandibles)
   ============================================================= */
.exp-list { border-top: 1px solid var(--line); }
.exp-row { border-bottom: 1px solid var(--line); }
.exp-head {
  width: 100%; display: grid; gap: .5rem 1.5rem; align-items: baseline;
  grid-template-columns: 1fr auto;
  padding: 1.5rem 0; text-align: left;
  transition: padding-left .4s var(--ease-soft);
}
.exp-year { color: var(--mute); grid-column: 1 / -1; }
.exp-title { display: flex; flex-direction: column; gap: .15rem; }
.exp-company { font-size: clamp(1.4rem, 3.2vw, 2.1rem); font-weight: 500; letter-spacing: -0.03em; line-height: 1.1; transition: color .3s; }
.exp-role { color: var(--ink-2); font-weight: 300; }
.exp-icon {
  font-family: var(--mono); font-size: 1.6rem; line-height: 1; color: var(--mute);
  transition: transform .45s var(--ease-soft), color .3s;
  grid-row: 2; grid-column: 2; align-self: center;
}
@media (hover: hover) {
  .exp-head:hover { padding-left: .5rem; }
  .exp-head:hover .exp-company { color: var(--accent); }
}
.exp-row.is-open .exp-icon { transform: rotate(45deg); color: var(--accent); }
.exp-body { display: grid; grid-template-rows: 1fr; transition: grid-template-rows .55s var(--ease-soft); }
html.is-js .exp-row:not(.is-open) .exp-body { grid-template-rows: 0fr; }
.exp-body-inner { overflow: hidden; }
.exp-body-inner p { max-width: 62ch; color: var(--ink-2); font-weight: 300; margin-bottom: 1rem; }
.exp-body-inner p:last-child { padding-bottom: 1.75rem; }
@media (min-width: 720px) {
  .exp-head { grid-template-columns: 140px 1fr auto; }
  .exp-year { grid-column: 1; }
  .exp-icon { grid-row: auto; grid-column: 3; }
  .exp-body-inner p { margin-left: calc(140px + 1.5rem); }
}

/* =============================================================
   10. Certificaciones + formación
   ============================================================= */
.cert-grid { display: grid; gap: 1rem; margin-bottom: clamp(3.5rem, 7vw, 5.5rem); }
.cert {
  position: relative; isolation: isolate;
  display: flex; flex-direction: column; gap: 1.25rem;
  padding: 1.75rem; min-height: 230px;
  border: 1px solid var(--line-2); border-radius: 10px;
  background: var(--bg-2);
  transition: transform .5s var(--ease-soft), border-color .4s;
  overflow: hidden;
}
.cert::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: radial-gradient(240px circle at var(--cx, 50%) var(--cy, 0%), rgba(46, 229, 157, .18), transparent 65%);
  opacity: 0; transition: opacity .4s;
}
@media (hover: hover) {
  .cert:hover { transform: translateY(-4px); border-color: rgba(46, 229, 157, .45); }
  .cert:hover::before { opacity: 1; }
}
.cert-vendor { color: var(--mute); }
.cert h3 { font-size: clamp(1.5rem, 2.6vw, 1.9rem); font-weight: 500; margin-top: auto; }
.cert-year { color: var(--accent); }
@media (min-width: 720px) { .cert-grid { grid-template-columns: repeat(3, 1fr); } }

.edu-list { border-top: 1px solid var(--line); }
.edu-list li { display: grid; gap: .25rem 1.5rem; padding: 1.25rem 0; border-bottom: 1px solid var(--line); }
.edu-year { color: var(--mute); }
.edu-what { font-weight: 500; }
.edu-where { color: var(--ink-2); font-weight: 300; }
@media (min-width: 720px) {
  .edu-list li { grid-template-columns: 140px 1fr 1fr; align-items: baseline; }
}

/* =============================================================
   11. Intereses
   ============================================================= */
.int-grid { display: grid; gap: 1px; background: var(--line); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.int { background: var(--bg); padding: 1.75rem 1.5rem 2rem; transition: background .4s; }
.int:hover { background: var(--bg-2); }
.int-num { display: block; color: var(--accent); margin-bottom: 1.5rem; }
.int h3 { font-size: 1.2rem; margin-bottom: .6rem; }
.int p { color: var(--ink-2); font-weight: 300; font-size: .98rem; }
@media (min-width: 720px) { .int-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1280px) { .int-grid { grid-template-columns: repeat(5, 1fr); } }

/* =============================================================
   12. Contacto + footer
   ============================================================= */
.contacto { padding-bottom: clamp(5rem, 12vw, 9rem); }
.contact-title { font-size: clamp(2.6rem, 8vw, 6rem); letter-spacing: -0.04em; margin-bottom: 1.5rem; }
.contact-email {
  display: inline-block; position: relative;
  font-size: clamp(1.3rem, 4.6vw, 3.4rem);
  font-weight: 300; letter-spacing: -0.03em; line-height: 1.1;
  padding-bottom: .15em; margin-bottom: 2.5rem;
  word-break: break-all;
}
.contact-email::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--gradient-2));
  transform: scaleX(.18); transform-origin: left;
  transition: transform .7s var(--ease-out);
}
.contact-email:hover::after { transform: scaleX(1); }
.contact-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1.5rem; }
.contact-loc { color: var(--mute); }

.footer { border-top: 1px solid var(--line); padding: 2rem 0 2.5rem; }
.footer-inner { display: flex; flex-direction: column; gap: .75rem; color: var(--mute); }
.footer-inner p { margin: 0; }
.footer-status time { white-space: nowrap; }
.footer-note { text-transform: none; letter-spacing: 0; }
.footer-status { display: inline-flex; align-items: center; gap: .5rem; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(46, 229, 157, .5); animation: statusPulse 2.4s ease-out infinite; }
@keyframes statusPulse { 0% { box-shadow: 0 0 0 0 rgba(46, 229, 157, .45); } 100% { box-shadow: 0 0 0 9px rgba(46, 229, 157, 0); } }
@media (min-width: 1280px) { .footer-inner { flex-direction: row; justify-content: space-between; align-items: center; gap: 2rem; } }

/* =============================================================
   13. Effects (reveal)
   ============================================================= */
html.is-js [data-reveal] {
  opacity: 0; transform: translateY(28px);
  transition: opacity .8s var(--ease-soft), transform .8s var(--ease-soft);
}
html.is-js [data-reveal].is-revealed { opacity: 1; transform: none; }

/* =============================================================
   14. Reduced motion — solo lo intrusivo
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-gradient { transition: none; }
  .status-dot { animation: none; }
  .arq-flow { animation: none; }
  /* Hover, reveals y count-up siguen activos a propósito. */
}