/* =====================================================================
   Germán Soto Ponce — CV
   Premium dark · UPAEP brand · vanilla CSS
   ===================================================================== */

:root {
  /* Marca UPAEP */
  --red: #e10023;
  --red-2: #ff2d4f;
  --red-deep: #a8001a;
  --gray: #878e94;

  /* Base */
  --bg: #09090d;
  --bg-2: #0c0c11;
  --ink: #f4f5f7;
  --ink-soft: #b8bcc6;
  --ink-mute: #777c87;

  /* Superficies */
  --surface: rgba(255, 255, 255, 0.025);
  --surface-2: rgba(255, 255, 255, 0.05);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);

  --radius: 18px;
  --radius-sm: 12px;
  --maxw: 1120px;
  --shadow: 0 30px 70px -24px rgba(0, 0, 0, 0.7);
  --ease: cubic-bezier(0.22, 0.8, 0.36, 1);

  --sans: "Inter", system-ui, -apple-system, sans-serif;
  --display: "Sora", var(--sans);
  --mono: "JetBrains Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--red); color: #fff; }

.skip-link {
  position: fixed; top: -60px; left: 12px; z-index: 200;
  background: var(--red); color: #fff; padding: 10px 16px; border-radius: 10px;
  transition: top 0.25s var(--ease);
}
.skip-link:focus { top: 12px; }

:focus-visible { outline: 2px solid var(--red-2); outline-offset: 3px; border-radius: 6px; }

/* ===== Barra de progreso ===== */
.reading-bar {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%;
  background: linear-gradient(90deg, var(--red), var(--red-2));
  z-index: 120; transition: width 0.1s linear;
  box-shadow: 0 0 12px rgba(255, 45, 79, 0.6);
}

/* ===== Fondo animado ===== */
.bg { position: fixed; inset: 0; z-index: -2; overflow: hidden; background: var(--bg); }
.bg__aurora {
  position: absolute; border-radius: 50%;
  filter: blur(120px); opacity: 0.5; will-change: transform;
}
.bg__aurora--1 {
  width: 60vw; height: 60vw; top: -20vw; right: -10vw;
  background: radial-gradient(circle, rgba(225, 0, 35, 0.5), transparent 65%);
  animation: float1 26s var(--ease) infinite alternate;
}
.bg__aurora--2 {
  width: 50vw; height: 50vw; bottom: -15vw; left: -10vw;
  background: radial-gradient(circle, rgba(135, 142, 148, 0.28), transparent 65%);
  animation: float2 32s var(--ease) infinite alternate;
}
.bg__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 30%, transparent 75%);
}
@keyframes float1 { to { transform: translate(-6vw, 8vh) scale(1.15); } }
@keyframes float2 { to { transform: translate(8vw, -6vh) scale(1.2); } }

/* ===== NAV ===== */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; transition: background 0.35s var(--ease), border-color 0.35s var(--ease), backdrop-filter 0.35s var(--ease); border-bottom: 1px solid transparent; }
.nav--scrolled {
  background: rgba(9, 9, 13, 0.72);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom-color: var(--border);
}
.nav__inner {
  max-width: var(--maxw); margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; gap: 18px;
}
.brand { display: flex; align-items: center; gap: 12px; margin-right: auto; }
.brand__mark {
  width: 40px; height: 40px; border-radius: 11px; flex: none;
  display: grid; place-items: center;
  font-family: var(--display); font-weight: 800; font-size: 0.95rem; letter-spacing: -0.5px;
  color: #fff; background: linear-gradient(135deg, var(--red-2), var(--red-deep));
  box-shadow: 0 6px 20px -6px rgba(225, 0, 35, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}
.brand__name { font-family: var(--display); font-weight: 700; font-size: 0.98rem; letter-spacing: -0.01em; line-height: 1; }
.brand__role { color: var(--ink-mute); font-weight: 500; }
.nav__links { display: flex; align-items: center; gap: 4px; }
.nav__links a {
  font-size: 0.9rem; color: var(--ink-soft); padding: 8px 14px; border-radius: 9px;
  position: relative; transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.nav__links a:hover { color: var(--ink); background: var(--surface-2); }
.nav__links a.active { color: #fff; }
.nav__links a.active::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 3px; height: 2px;
  background: var(--red); border-radius: 2px;
}
.nav__cta { margin-left: 6px; }
.nav__burger { display: none; width: 42px; height: 42px; border: 1px solid var(--border); border-radius: 11px; background: var(--surface-2); cursor: pointer; flex-direction: column; gap: 5px; align-items: center; justify-content: center; }
.nav__burger span { width: 18px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform 0.3s var(--ease), opacity 0.3s var(--ease); }
.nav.open .nav__burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.open .nav__burger span:nth-child(2) { opacity: 0; }
.nav.open .nav__burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Botones ===== */
.btn {
  display: inline-flex; align-items: center; gap: 9px; cursor: pointer;
  font-family: var(--sans); font-size: 0.9rem; font-weight: 600; line-height: 1;
  padding: 12px 20px; border-radius: 11px; border: 1px solid transparent;
  transition: transform 0.2s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease);
  white-space: nowrap; -webkit-tap-highlight-color: transparent;
}
.btn .ico { width: 18px; height: 18px; }
.btn--solid {
  color: #fff; background: linear-gradient(135deg, var(--red-2), var(--red-deep));
  box-shadow: 0 10px 28px -10px rgba(225, 0, 35, 0.75), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}
.btn--solid:hover { transform: translateY(-2px); box-shadow: 0 16px 36px -10px rgba(225, 0, 35, 0.85), inset 0 1px 0 rgba(255, 255, 255, 0.3); }
.btn--ghost { color: var(--ink); background: var(--surface-2); border-color: var(--border-strong); }
.btn--ghost:hover { transform: translateY(-2px); border-color: var(--ink-mute); background: rgba(255, 255, 255, 0.08); }
.btn:active { transform: translateY(0); }

/* ===== HERO ===== */
.hero { position: relative; min-height: 100svh; display: flex; align-items: center; padding: 120px 24px 70px; }
.hero__inner {
  max-width: var(--maxw); margin: 0 auto; width: 100%;
  display: grid; grid-template-columns: 1.25fr 0.85fr; gap: 56px; align-items: center;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px; margin: 0 0 22px;
  font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink-soft);
  border: 1px solid var(--border); background: var(--surface-2);
  padding: 7px 14px; border-radius: 100px;
}
.eyebrow__dot { width: 7px; height: 7px; border-radius: 50%; background: var(--red-2); box-shadow: 0 0 10px var(--red-2); animation: blink 2.4s var(--ease) infinite; }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

.hero__name {
  font-family: var(--display); font-weight: 800; font-size: clamp(2.9rem, 7.5vw, 5.6rem);
  line-height: 0.98; letter-spacing: -0.03em; margin: 0 0 22px;
  background: linear-gradient(180deg, #fff 30%, #c9ccd3 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero__title {
  font-family: var(--display); font-weight: 500; font-size: clamp(1.15rem, 2.3vw, 1.55rem);
  color: var(--ink-soft); margin: 0 0 26px; line-height: 1.45;
}
.hero__title .hl { color: var(--ink); font-weight: 700; }
.hero__rotator { display: inline-flex; align-items: baseline; color: var(--ink-mute); }
.hero__rotator-label { color: var(--ink-mute); }
.rotator { color: var(--red-2); font-weight: 600; transition: opacity 0.35s var(--ease), transform 0.35s var(--ease); display: inline-block; }
.rotator.swap { opacity: 0; transform: translateY(8px); }

.hero__lede { font-size: 1.06rem; color: var(--ink-soft); max-width: 56ch; margin: 0 0 34px; }
.hero__lede strong { color: var(--ink); font-weight: 600; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 30px; }
.hero__contact { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 10px 22px; }
.hero__contact li a, .hero__contact li span {
  display: inline-flex; align-items: center; gap: 8px; font-size: 0.9rem; color: var(--ink-soft);
  transition: color 0.2s var(--ease);
}
.hero__contact li a:hover { color: var(--red-2); }
.hero__contact .ico { width: 16px; height: 16px; color: var(--ink-mute); }

/* Retrato */
.hero__portrait { display: grid; place-items: center; }
.portrait {
  position: relative; width: clamp(250px, 32vw, 380px); aspect-ratio: 1; border-radius: 50%;
  animation: floaty 7s var(--ease) infinite alternate;
  transform-style: preserve-3d; transition: transform 0.3s var(--ease);
}
@keyframes floaty { to { transform: translateY(-14px); } }
.portrait__ring {
  position: absolute; inset: -10px; border-radius: 50%; z-index: 0;
  background: conic-gradient(from 140deg, var(--red-2), var(--gray), var(--red-deep), var(--red-2));
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 3px), #000 calc(100% - 3px));
  mask: radial-gradient(farthest-side, transparent calc(100% - 3px), #000 calc(100% - 3px));
  animation: spin 14s linear infinite; opacity: 0.9;
}
@keyframes spin { to { transform: rotate(360deg); } }
.portrait__glow { position: absolute; inset: -14%; border-radius: 50%; background: radial-gradient(circle, rgba(225, 0, 35, 0.4), transparent 62%); filter: blur(34px); z-index: -1; }
.portrait img {
  position: relative; z-index: 1; width: 100%; height: 100%; border-radius: 50%; object-fit: cover; object-position: 50% 28%;
  border: 6px solid rgba(255, 255, 255, 0.06);
  box-shadow: var(--shadow);
  background: #e9eaec;
}
.portrait__badge {
  position: absolute; bottom: 6%; left: 50%; transform: translateX(-50%); z-index: 2;
  display: inline-flex; align-items: center; gap: 7px; white-space: nowrap;
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.02em; color: var(--ink);
  background: rgba(13, 13, 18, 0.82); backdrop-filter: blur(8px);
  border: 1px solid var(--border-strong); padding: 7px 13px; border-radius: 100px;
  box-shadow: 0 10px 26px -12px rgba(0, 0, 0, 0.9);
}
.portrait__badge .ico { width: 14px; height: 14px; color: var(--red-2); }

.scroll-hint {
  position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.25em; text-transform: uppercase; color: var(--ink-mute);
}
.scroll-hint__line { width: 1px; height: 42px; background: linear-gradient(180deg, var(--red-2), transparent); animation: drip 2.2s var(--ease) infinite; transform-origin: top; }
@keyframes drip { 0% { transform: scaleY(0); opacity: 0.9; } 60% { transform: scaleY(1); opacity: 0.9; } 100% { transform: scaleY(1); opacity: 0; } }

/* ===== STATS ===== */
.stats { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.stats__grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface);
  padding: 8px; overflow: hidden;
}
.stat { padding: 26px 22px; border-radius: var(--radius-sm); transition: background 0.25s var(--ease); }
.stat:hover { background: var(--surface-2); }
.stat__num { display: block; font-family: var(--display); font-weight: 800; font-size: clamp(2rem, 4vw, 2.9rem); line-height: 1; letter-spacing: -0.02em; color: #fff; }
.stat__num span { background: linear-gradient(180deg, #fff, var(--red-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat__label { display: block; margin-top: 10px; font-size: 0.82rem; color: var(--ink-soft); line-height: 1.4; }

/* ===== SECTIONS ===== */
.section { max-width: var(--maxw); margin: 0 auto; padding: 100px 24px; position: relative; }
.section__head { margin-bottom: 48px; }
.kicker {
  display: inline-flex; align-items: center; gap: 10px; margin: 0 0 16px;
  font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--red-2);
}
.kicker span { color: var(--ink-mute); border: 1px solid var(--border); border-radius: 6px; padding: 2px 7px; font-size: 0.72rem; }
.kicker--ia { color: var(--red-2); }
.section__title { font-family: var(--display); font-weight: 700; font-size: clamp(1.9rem, 4vw, 3rem); line-height: 1.08; letter-spacing: -0.02em; margin: 0; }
.section__sub { margin: 18px 0 0; color: var(--ink-soft); font-size: 1.05rem; max-width: 62ch; }

/* ===== PERFIL ===== */
.profile { display: grid; grid-template-columns: 1.6fr 1fr; gap: 40px; }
.profile__main p { color: var(--ink-soft); margin: 0 0 18px; font-size: 1.04rem; }
.profile__main strong { color: var(--ink); font-weight: 600; }
.profile__main .lead { font-size: 1.22rem; line-height: 1.6; color: var(--ink); font-weight: 400; }
.profile__main .lead strong { color: #fff; }
.profile__aside {
  border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; background: var(--surface);
  align-self: start; position: relative; overflow: hidden;
}
.profile__aside::before { content: ""; position: absolute; top: 0; left: 0; width: 3px; height: 100%; background: linear-gradient(180deg, var(--red-2), transparent); }
.profile__aside-label { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-mute); margin: 0 0 16px; }
.focus { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.focus li { position: relative; padding-left: 22px; color: var(--ink); font-size: 0.96rem; }
.focus li::before { content: ""; position: absolute; left: 0; top: 8px; width: 8px; height: 8px; border-radius: 50%; background: var(--red); box-shadow: 0 0 8px rgba(225, 0, 35, 0.6); }

/* ===== TIMELINE ===== */
.timeline { position: relative; padding-left: 30px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(180deg, var(--red), var(--border) 70%, transparent); }
.tl { position: relative; margin-bottom: 22px; }
.tl__dot { position: absolute; left: -30px; top: 26px; width: 16px; height: 16px; border-radius: 50%; background: var(--bg); border: 2px solid var(--red); box-shadow: 0 0 0 4px rgba(225, 0, 35, 0.12); }
.tl:first-child .tl__dot { background: var(--red); box-shadow: 0 0 0 4px rgba(225, 0, 35, 0.18), 0 0 16px var(--red-2); }
.tl__card { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); padding: 26px 28px; transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), background 0.25s var(--ease); }
.tl__card:hover { border-color: var(--border-strong); background: var(--surface-2); transform: translateX(4px); }
.tl__head { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.tl__logo {
  width: 54px; height: 54px; flex: none; border-radius: 13px; display: grid; place-items: center;
  font-family: var(--display); font-weight: 800; font-size: 0.74rem; letter-spacing: -0.02em;
  background: var(--surface-2); border: 1px solid var(--border-strong); color: var(--ink-soft);
}
.logo-upaep { color: #fff; background: linear-gradient(135deg, var(--red-2), var(--red-deep)); border-color: transparent; box-shadow: 0 8px 22px -10px rgba(225, 0, 35, 0.7); }
.tl__meta { margin-right: auto; }
.tl__role { font-family: var(--display); font-weight: 600; font-size: 1.18rem; margin: 0 0 4px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.tl__org { margin: 0; color: var(--ink-soft); font-size: 0.92rem; }
.tl__date { font-family: var(--mono); font-size: 0.8rem; color: var(--ink-mute); white-space: nowrap; }
.chip {
  font-family: var(--sans); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.02em;
  padding: 3px 10px; border-radius: 100px; border: 1px solid var(--border-strong); color: var(--ink-soft); background: var(--surface-2);
}
.chip--live { color: #fff; background: var(--red); border-color: transparent; }
.chip--live::before { content: ""; display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: #fff; margin-right: 6px; vertical-align: middle; animation: blink 1.8s infinite; }
.tl__desc { color: var(--ink-soft); margin: 18px 0 0; font-size: 0.98rem; }
.tl__groups { display: grid; grid-template-columns: 1fr 1fr; gap: 20px 32px; margin-top: 22px; padding-top: 22px; border-top: 1px solid var(--border); }
.grp__title { font-size: 0.86rem; font-weight: 600; color: var(--red-2); margin: 0 0 10px; letter-spacing: 0.01em; }
.grp ul { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 8px; }
.grp li { position: relative; padding-left: 18px; color: var(--ink-soft); font-size: 0.9rem; line-height: 1.5; }
.grp li::before { content: ""; position: absolute; left: 0; top: 9px; width: 6px; height: 1px; background: var(--gray); }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.tag { font-size: 0.82rem; color: var(--ink-soft); background: var(--surface-2); border: 1px solid var(--border); padding: 6px 12px; border-radius: 9px; }

/* ===== IA ===== */
.section--ia { position: relative; }
.ia__halo { position: absolute; inset: 0; z-index: -1; background: radial-gradient(ellipse 70% 50% at 50% 0%, rgba(225, 0, 35, 0.1), transparent 70%); pointer-events: none; }
.ia__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.ia-card {
  border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; background: var(--surface);
  position: relative; overflow: hidden; transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), background 0.25s var(--ease);
}
.ia-card::after { content: ""; position: absolute; inset: 0; border-radius: var(--radius); padding: 1px; background: linear-gradient(135deg, rgba(255, 45, 79, 0.5), transparent 40%); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0; transition: opacity 0.3s var(--ease); }
.ia-card:hover { transform: translateY(-4px); background: var(--surface-2); border-color: transparent; }
.ia-card:hover::after { opacity: 1; }
.ia-card__ico { width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center; margin-bottom: 18px; background: rgba(225, 0, 35, 0.12); border: 1px solid rgba(225, 0, 35, 0.25); }
.ia-card__ico svg { width: 24px; height: 24px; color: var(--red-2); }
.ia-card h3 { font-family: var(--display); font-weight: 600; font-size: 1.08rem; margin: 0 0 9px; }
.ia-card p { margin: 0; color: var(--ink-soft); font-size: 0.92rem; line-height: 1.55; }

.ia__stack { margin-top: 40px; display: flex; align-items: center; gap: 28px; flex-wrap: wrap; border-top: 1px solid var(--border); padding-top: 30px; }
.ia__stack-label { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-mute); }
.logos { display: flex; align-items: center; gap: 30px; flex-wrap: wrap; }
.logos--sm { gap: 18px; }
.logo-img { height: 26px; width: auto; opacity: 0.7; filter: grayscale(0.1); transition: opacity 0.25s var(--ease), transform 0.25s var(--ease); }
.logos--sm .logo-img { height: 20px; }
.logo-img:hover { opacity: 1; transform: translateY(-2px); }
.logo-txt { font-family: var(--display); font-weight: 600; font-size: 0.92rem; color: var(--ink-soft); }
.logos--sm .logo-txt { font-size: 0.82rem; }

/* ===== COMPETENCIAS ===== */
.comp { display: grid; grid-template-columns: 0.85fr 1.4fr; gap: 40px; }
.comp__h { font-family: var(--display); font-weight: 600; font-size: 1.2rem; margin: 0 0 22px; padding-bottom: 14px; border-bottom: 1px solid var(--border); }
.check { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 14px; }
.check li { position: relative; padding-left: 30px; color: var(--ink); font-size: 0.98rem; }
.check li::before {
  content: ""; position: absolute; left: 0; top: 2px; width: 19px; height: 19px; border-radius: 6px;
  background: rgba(225, 0, 35, 0.14); border: 1px solid rgba(225, 0, 35, 0.4);
}
.check li::after { content: ""; position: absolute; left: 6px; top: 6px; width: 7px; height: 4px; border-left: 2px solid var(--red-2); border-bottom: 2px solid var(--red-2); transform: rotate(-45deg); }
.techgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.techcard { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 20px; background: var(--surface); transition: border-color 0.25s var(--ease), background 0.25s var(--ease); }
.techcard:hover { border-color: var(--border-strong); background: var(--surface-2); }
.techcard__t { font-weight: 600; font-size: 0.96rem; margin: 0 0 14px; color: var(--ink); }
.techcard__d { margin: 14px 0 0; font-size: 0.82rem; color: var(--ink-mute); }
.techcard--wide { grid-column: 1 / -1; border-color: rgba(225, 0, 35, 0.22); background: linear-gradient(120deg, rgba(225, 0, 35, 0.07), var(--surface) 60%); }
.techcard--wide .techcard__t { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.chip--accent { background: rgba(225, 0, 35, 0.16) !important; border-color: rgba(225, 0, 35, 0.42) !important; color: #fff !important; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.techcard .chip { background: rgba(225, 0, 35, 0.08); border-color: rgba(225, 0, 35, 0.25); color: var(--ink-soft); }

/* ===== EDUCACIÓN ===== */
.edu { display: grid; gap: 14px; margin-bottom: 36px; }
.edu-card { display: flex; align-items: center; gap: 20px; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px 26px; background: var(--surface); transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), background 0.25s var(--ease); }
.edu-card:hover { border-color: var(--border-strong); transform: translateX(4px); background: var(--surface-2); }
.edu-card--feature { background: linear-gradient(120deg, rgba(225, 0, 35, 0.08), var(--surface) 55%); border-color: rgba(225, 0, 35, 0.25); }
.edu-card__logo { width: 64px; height: 64px; flex: none; border-radius: 14px; display: grid; place-items: center; font-family: var(--display); font-weight: 800; font-size: 0.82rem; letter-spacing: 0.02em; }
.logo-mit { color: #fff; background: #0b0b0f; border: 1px solid var(--border-strong); font-family: "JetBrains Mono", monospace; letter-spacing: 0.06em; }
.edu-card h3 { font-family: var(--display); font-weight: 600; font-size: 1.08rem; margin: 0 0 4px; }
.edu-card__org { margin: 0; color: var(--ink-soft); font-size: 0.9rem; }
.edu-card__year { margin-left: auto; font-family: var(--mono); font-size: 0.84rem; color: var(--ink-mute); white-space: nowrap; }

.certs { border-top: 1px solid var(--border); padding-top: 30px; }
.certs__label { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-mute); margin: 0 0 18px; }
.certs__grid { display: flex; flex-wrap: wrap; gap: 10px; }
.cert { font-size: 0.86rem; color: var(--ink-soft); background: var(--surface); border: 1px solid var(--border); padding: 9px 15px; border-radius: 10px; transition: border-color 0.2s var(--ease), color 0.2s var(--ease); }
.cert:hover { border-color: var(--red); color: var(--ink); }

/* ===== CONTACTO ===== */
.section--contact { text-align: center; }
.contact { max-width: 720px; margin: 0 auto; }
.section--contact .kicker { justify-content: center; }
.contact__title { font-family: var(--display); font-weight: 700; font-size: clamp(2rem, 5vw, 3.4rem); letter-spacing: -0.02em; margin: 0 0 16px; line-height: 1.05; }
.contact__sub { color: var(--ink-soft); font-size: 1.08rem; margin: 0 0 32px; }
.contact__actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin-bottom: 26px; }
.contact__list { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px 26px; justify-content: center; color: var(--ink-soft); font-size: 0.94rem; }
.contact__list a:hover { color: var(--red-2); }

/* ===== FOOTER ===== */
.foot { max-width: var(--maxw); margin: 0 auto; padding: 40px 24px 56px; display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; border-top: 1px solid var(--border); color: var(--ink-mute); font-size: 0.86rem; }
.foot__url { font-family: var(--mono); }

/* ===== FAB ===== */
.fab {
  position: fixed; right: 18px; bottom: 18px; z-index: 90; display: none; align-items: center; gap: 8px;
  font-family: var(--sans); font-weight: 600; font-size: 0.88rem; color: #fff; cursor: pointer;
  padding: 13px 18px; border: none; border-radius: 100px;
  background: linear-gradient(135deg, var(--red-2), var(--red-deep));
  box-shadow: 0 14px 30px -10px rgba(225, 0, 35, 0.8);
}
.fab .ico { width: 18px; height: 18px; }

/* ===== TOAST ===== */
.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%) translateY(20px);
  background: rgba(13, 13, 18, 0.94); border: 1px solid var(--border-strong); color: var(--ink);
  padding: 12px 20px; border-radius: 12px; font-size: 0.9rem; z-index: 130;
  opacity: 0; pointer-events: none; transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
  box-shadow: var(--shadow); max-width: 90vw; text-align: center;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ===== REVEAL ===== */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
/* Stagger en rejillas */
.stats__grid .stat:nth-child(2) { transition-delay: 0.07s; }
.stats__grid .stat:nth-child(3) { transition-delay: 0.14s; }
.ia__grid .ia-card:nth-child(2) { transition-delay: 0.06s; }
.ia__grid .ia-card:nth-child(3) { transition-delay: 0.12s; }
.ia__grid .ia-card:nth-child(4) { transition-delay: 0.06s; }
.ia__grid .ia-card:nth-child(5) { transition-delay: 0.12s; }
.ia__grid .ia-card:nth-child(6) { transition-delay: 0.18s; }

/* =====================================================================
   RESPONSIVE
   ===================================================================== */
@media (max-width: 980px) {
  .hero__inner { grid-template-columns: 1fr; gap: 40px; }
  .hero__portrait { order: -1; }
  .portrait { width: clamp(210px, 52vw, 280px); }
  .portrait__badge { font-size: 0.66rem; }
  .profile { grid-template-columns: 1fr; gap: 26px; }
  .comp { grid-template-columns: 1fr; gap: 30px; }
  .ia__grid { grid-template-columns: 1fr 1fr; }
  .stats__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .nav__links {
    position: absolute; top: calc(100% + 1px); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 2px; padding: 12px;
    background: rgba(9, 9, 13, 0.96); backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    transform: translateY(-12px); opacity: 0; pointer-events: none; transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
  }
  .nav.open .nav__links { transform: none; opacity: 1; pointer-events: auto; }
  .nav__links a { padding: 12px 14px; }
  .nav__links a.active::after { display: none; }
  .nav__cta { display: none; }
  .nav__burger { display: flex; }
  .brand__role { display: none; }
  .fab { display: inline-flex; }
}
@media (max-width: 620px) {
  .section { padding: 72px 18px; }
  .hero { padding: 104px 18px 60px; }
  .ia__grid { grid-template-columns: 1fr; }
  .techgrid { grid-template-columns: 1fr; }
  .tl__groups { grid-template-columns: 1fr; gap: 18px; }
  .tl__card { padding: 22px; }
  .tl__date { width: 100%; }
  .edu-card { flex-wrap: wrap; }
  .edu-card__year { margin-left: 0; width: 100%; }
  .stats__grid { padding: 4px; }
  .stat { padding: 20px 16px; }
  .foot { flex-direction: column; }
}
@media (max-width: 400px) {
  .stats__grid { grid-template-columns: 1fr; }
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}

/* =====================================================================
   PRINT  →  CV profesional A4 (fondo blanco, texto vectorial)
   ===================================================================== */
@media print {
  @page { size: A4; margin: 13mm 14mm; }

  :root { --ink: #15171c; --ink-soft: #3a3f4a; --ink-mute: #6a6f7a; }
  html, body { background: #fff !important; color: #15171c !important; font-size: 10.2pt; line-height: 1.42; }
  body { overflow: visible; }
  * { -webkit-print-color-adjust: exact !important; print-color-adjust: exact !important; box-shadow: none !important; text-shadow: none !important; animation: none !important; transition: none !important; }

  /* Ocultar cromo */
  .bg, .reading-bar, .nav, .fab, .toast, .scroll-hint, .skip-link,
  .hero__cta, .hero__rotator, .portrait__ring, .portrait__glow, .portrait__badge,
  .ia__halo, .contact__actions, .ia__stack, .section__sub { display: none !important; }

  .reveal { opacity: 1 !important; transform: none !important; }

  main { display: block; }

  /* Encabezado del CV */
  .hero { min-height: 0 !important; display: block; padding: 0 0 10pt; border-bottom: 1.5pt solid var(--red); margin-bottom: 12pt; }
  .hero__inner { display: flex !important; flex-direction: row-reverse; align-items: center; gap: 16pt; max-width: none; }
  .hero__portrait { order: 0; }
  .portrait { width: 92pt !important; height: 92pt; animation: none !important; }
  .portrait img { border: 1.5pt solid var(--red) !important; object-position: 50% 25%; }
  .eyebrow { border: none !important; background: none !important; padding: 0 !important; color: var(--red) !important; margin-bottom: 6pt; font-size: 7.4pt; }
  .eyebrow__dot { display: none; }
  .hero__name { font-size: 25pt !important; color: #15171c !important; -webkit-text-fill-color: #15171c; margin-bottom: 5pt; line-height: 1; }
  .hero__title { font-size: 11.5pt !important; color: #3a3f4a !important; margin: 0 0 7pt; }
  .hero__title .hl { color: var(--red) !important; }
  .hero__lede { font-size: 9.4pt !important; color: #3a3f4a !important; margin: 0 0 7pt; max-width: none; }
  .hero__lede strong { color: #15171c !important; }
  .hero__contact { gap: 4pt 14pt; }
  .hero__contact li a, .hero__contact li span { color: #3a3f4a !important; font-size: 8.6pt; }
  .hero__contact .ico { color: var(--red) !important; }

  /* Secciones compactas */
  .section { padding: 9pt 0 !important; max-width: none; page-break-inside: auto; }
  .stats { padding: 0 !important; }
  .stats__grid { border: none !important; background: none !important; padding: 0 !important; gap: 6pt; }
  .stat { padding: 4pt 0 !important; }
  .stat__num { font-size: 16pt !important; color: var(--red) !important; -webkit-text-fill-color: var(--red); }
  .stat__num span { color: var(--red) !important; -webkit-text-fill-color: var(--red); }
  .stat__label { font-size: 7.4pt !important; color: #3a3f4a !important; }

  .section__head { margin-bottom: 8pt !important; }
  .kicker { color: var(--red) !important; font-size: 7.6pt; margin-bottom: 3pt; }
  .kicker span { display: none; }
  .section__title { font-size: 13.5pt !important; color: #15171c !important; }

  .profile { gap: 14pt; }
  .profile__main p { font-size: 9.2pt !important; color: #3a3f4a !important; margin-bottom: 6pt; }
  .profile__main .lead { font-size: 10pt !important; color: #15171c !important; }
  .profile__aside { border: 1pt solid #dcdfe4 !important; background: #f7f8fa !important; padding: 12pt; }
  .profile__aside::before { background: var(--red) !important; }
  .focus li { color: #15171c !important; font-size: 8.8pt; }
  .focus li::before { background: var(--red) !important; }

  .timeline { padding-left: 14pt; page-break-inside: auto; }
  .timeline::before { background: #dcdfe4 !important; left: 4pt; }
  .tl { margin-bottom: 9pt; page-break-inside: avoid; }
  .tl__dot { left: -14pt; width: 9pt; height: 9pt; background: var(--red) !important; border-color: var(--red) !important; }
  .tl__card { border: 1pt solid #e2e5ea !important; background: #fff !important; padding: 11pt 13pt !important; }
  .tl__logo { width: 30pt; height: 30pt; font-size: 6.4pt; border: 1pt solid #e2e5ea !important; }
  .logo-upaep { color: #fff !important; background: var(--red) !important; }
  .tl__role { font-size: 10.4pt !important; color: #15171c !important; }
  .tl__org { font-size: 8pt !important; color: #3a3f4a !important; }
  .tl__date { font-size: 7.6pt !important; color: #6a6f7a !important; }
  .chip--live { background: var(--red) !important; color: #fff !important; }
  .chip--live::before { display: none; }
  .tl__desc { font-size: 8.8pt !important; color: #3a3f4a !important; margin-top: 7pt; }
  .tl__groups { gap: 6pt 18pt; margin-top: 9pt; padding-top: 9pt; border-top: 1pt solid #e2e5ea !important; }
  .grp__title { color: var(--red) !important; font-size: 8pt; margin-bottom: 4pt; }
  .grp li { font-size: 8pt !important; color: #3a3f4a !important; padding-left: 12pt; }
  .grp li::before { background: var(--red) !important; }
  .tag { border: 1pt solid #e2e5ea !important; background: #f7f8fa !important; color: #3a3f4a !important; font-size: 7.8pt; }

  .ia__grid { grid-template-columns: 1fr 1fr 1fr !important; gap: 7pt; }
  .ia-card { border: 1pt solid #e2e5ea !important; background: #fff !important; padding: 10pt !important; page-break-inside: avoid; }
  .ia-card::after { display: none; }
  .ia-card__ico { width: 22pt; height: 22pt; margin-bottom: 6pt; background: #fdecef !important; border-color: #f6c9d2 !important; }
  .ia-card__ico svg { color: var(--red) !important; width: 13pt; height: 13pt; }
  .ia-card h3 { font-size: 9pt !important; color: #15171c !important; }
  .ia-card p { font-size: 7.8pt !important; color: #3a3f4a !important; }

  .comp { gap: 16pt; }
  .comp__h { font-size: 10.5pt !important; color: #15171c !important; border-bottom: 1pt solid #e2e5ea !important; padding-bottom: 6pt; margin-bottom: 9pt; }
  .check li { color: #15171c !important; font-size: 8.8pt; }
  .check li::before { background: #fdecef !important; border-color: var(--red) !important; }
  .check li::after { border-color: var(--red) !important; }
  .techgrid { gap: 7pt; }
  .techcard { border: 1pt solid #e2e5ea !important; background: #fff !important; padding: 9pt; page-break-inside: avoid; }
  .techcard__t { font-size: 8.8pt !important; color: #15171c !important; margin-bottom: 6pt; }
  .techcard__d { font-size: 7.6pt !important; color: #6a6f7a !important; }
  .logo-img { filter: invert(1) brightness(0.2) !important; opacity: 0.85 !important; height: 14pt; }
  .logo-txt { color: #3a3f4a !important; font-size: 7.8pt; }
  .techcard .chip { background: #fdecef !important; border-color: #f6c9d2 !important; color: #3a3f4a !important; font-size: 7.6pt; }

  .edu { gap: 6pt; margin-bottom: 9pt; }
  .edu-card { border: 1pt solid #e2e5ea !important; background: #fff !important; padding: 9pt 12pt; page-break-inside: avoid; }
  .edu-card--feature { background: #fdecef !important; border-color: #f6c9d2 !important; }
  .edu-card__logo { width: 34pt; height: 34pt; font-size: 7.4pt; }
  .logo-mit { background: #15171c !important; color: #fff !important; }
  .edu-card h3 { font-size: 9.4pt !important; color: #15171c !important; }
  .edu-card__org { font-size: 8pt !important; color: #3a3f4a !important; }
  .edu-card__year { font-size: 8pt !important; color: #6a6f7a !important; }
  .certs { border-top: 1pt solid #e2e5ea !important; padding-top: 9pt; }
  .certs__label { color: #6a6f7a !important; }
  .cert { border: 1pt solid #e2e5ea !important; background: #f7f8fa !important; color: #3a3f4a !important; font-size: 7.8pt; padding: 5pt 9pt; }

  /* Contacto en print: solo datos, sin botones */
  .section--contact { text-align: left; page-break-inside: avoid; border-top: 1.5pt solid var(--red); margin-top: 8pt; }
  .contact { max-width: none; }
  .contact__title { font-size: 12pt !important; color: #15171c !important; }
  .contact__sub { font-size: 8.8pt !important; color: #3a3f4a !important; margin-bottom: 6pt; }
  .contact__list { justify-content: flex-start; color: #3a3f4a !important; font-size: 8.6pt; }

  .foot { border-top: 1pt solid #e2e5ea !important; color: #6a6f7a !important; font-size: 7.6pt; padding: 8pt 0 0; margin-top: 8pt; }
}