/* ==========================================================================
   Raymundo Aparicio Olarte — Portfolio
   Premium professional tech portfolio. Pure CSS, no framework.
   ========================================================================== */

:root {
  /* Colors */
  --navy-950: #060b16;
  --navy-900: #0a1220;
  --navy-850: #0d1727;
  --navy-800: #101b30;
  --navy-700: #182645;
  --blue-600: #1e56c4;
  --blue-500: #2f6feb;
  --blue-400: #4c8dff;
  --blue-300: #8ab4ff;
  --cyan-400: #4fd1e0;
  --white: #ffffff;
  --gray-50: #f7f9fc;
  --gray-100: #eef1f7;
  --gray-200: #e1e6f0;
  --gray-300: #c7cfdf;
  --gray-500: #6b7690;
  --gray-600: #545f78;
  --gray-900: #111726;

  /* Semantic (light sections) */
  --bg: var(--white);
  --bg-alt: var(--gray-50);
  --text: var(--gray-900);
  --text-muted: var(--gray-600);
  --border: var(--gray-200);

  /* Type */
  --font-display: 'Space Grotesk', 'Segoe UI', system-ui, sans-serif;
  --font-body: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;

  --container-w: 1180px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --transition: 220ms cubic-bezier(.4,0,.2,1);
  --header-h: 76px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

/* NOTE: no global `color` here — dark sections set their own.
   A global dark color would silently override the white text of the hero. */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.15;
  margin: 0;
  letter-spacing: -0.015em;
}

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }
ul { margin: 0; padding: 0; list-style: none; }

.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--blue-500);
  color: #fff;
  padding: 10px 16px;
  z-index: 1000;
  border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ---------- Scroll progress ---------- */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 100%;
  transform: scaleX(0);
  transform-origin: left;
  background: linear-gradient(90deg, var(--blue-500), var(--cyan-400));
  z-index: 900;
  transition: transform 90ms linear;
  pointer-events: none;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform var(--transition), background var(--transition),
              box-shadow var(--transition), border-color var(--transition), color var(--transition);
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible { outline: 2px solid var(--blue-400); outline-offset: 3px; }

.btn-primary {
  background: linear-gradient(135deg, var(--blue-500), var(--blue-400));
  color: #fff;
  box-shadow: 0 8px 24px -8px rgba(47,111,235,.55);
}
.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,.28) 50%, transparent 70%);
  transform: translateX(-120%);
  transition: transform 620ms ease;
}
.btn-primary:hover::after { transform: translateX(120%); }
.btn-primary:hover { box-shadow: 0 14px 30px -6px rgba(47,111,235,.68); }

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--blue-400); color: var(--blue-500); }

/* Ghost button on dark backgrounds */
.hero .btn-ghost,
.cta-band .btn-ghost { border-color: rgba(255,255,255,.3); color: #fff; }
.hero .btn-ghost:hover,
.cta-band .btn-ghost:hover { color: #fff; background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.55); }

.btn-text { color: var(--blue-300); padding: 13px 6px; }
.btn-text:hover { color: #fff; }

.btn-sm { padding: 9px 18px; font-size: 0.85rem; }
.btn-lg { padding: 16px 34px; font-size: 1.02rem; }
.btn-block { display: flex; width: 100%; margin-top: 22px; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}
.site-header.is-scrolled {
  background: rgba(10, 18, 32, 0.86);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  box-shadow: 0 1px 0 rgba(255,255,255,.07), 0 10px 30px -20px rgba(0,0,0,.9);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  color: #fff;
  font-size: 1rem;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--blue-500), var(--navy-700));
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  flex-shrink: 0;
}
.brand-name { display: none; }
@media (min-width: 620px) { .brand-name { display: inline; } }

.main-nav ul { display: flex; gap: 26px; }
.main-nav a {
  color: rgba(255,255,255,.78);
  font-size: 0.92rem;
  font-weight: 500;
  padding: 8px 0;
  position: relative;
  transition: color var(--transition);
}
.main-nav a::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--blue-400), var(--cyan-400));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.main-nav a:hover { color: #fff; }
.main-nav a:hover::after,
.main-nav a.is-active::after { transform: scaleX(1); }
.main-nav a.is-active { color: #fff; }

.header-actions { display: flex; align-items: center; gap: 14px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  background: transparent;
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 10px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 18px; height: 2px;
  background: #fff;
  margin: 0 auto;
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px) {
  .nav-toggle { display: flex; }

  /* El header NO debe llevar backdrop-filter mientras exista el menú overlay:
     un elemento con backdrop-filter (igual que filter o transform) se vuelve el
     bloque contenedor de sus descendientes position:fixed. Con él, .main-nav
     se medía contra el header de 76px en vez del viewport y colapsaba a 0 de alto,
     dejando los enlaces flotando sobre el contenido. Fondo sólido en su lugar. */
  .site-header.is-scrolled {
    background: rgba(10, 18, 32, 0.97);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }

  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    /* Altura explícita: cubre aunque algún ancestro cree un bloque contenedor. */
    height: calc(100vh - var(--header-h));
    height: calc(100dvh - var(--header-h));
    background: rgb(6, 11, 22);
    overflow-y: auto;
    overscroll-behavior: contain;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition), transform var(--transition);
  }
  .main-nav.is-open { opacity: 1; transform: translateY(0); pointer-events: auto; }
  .main-nav ul { flex-direction: column; align-items: center; justify-content: center; height: 100%; gap: 6px; }
  .main-nav a { font-size: 1.28rem; padding: 13px 0; }
  .header-actions .btn-primary.btn-sm { padding: 8px 14px; font-size: 0.78rem; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: min(100vh, 920px);
  display: flex;
  align-items: center;
  background: linear-gradient(180deg, var(--navy-950), var(--navy-900) 55%, var(--navy-850));
  color: #fff;
  overflow: hidden;
  padding: calc(var(--header-h) + 48px) 0 72px;
}

.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 90% 75% at 25% 35%, black 35%, transparent 82%);
  -webkit-mask-image: radial-gradient(ellipse 90% 75% at 25% 35%, black 35%, transparent 82%);
}
.hero-noise {
  position: absolute; inset: 0;
  opacity: .5;
  background-image: radial-gradient(rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 3px 3px;
  mix-blend-mode: overlay;
}
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  will-change: transform;
}
.hero-glow-a {
  width: 620px; height: 620px;
  top: -240px; right: -170px;
  background: radial-gradient(circle, rgba(47,111,235,.6), transparent 70%);
  animation: drift-a 16s ease-in-out infinite alternate;
}
.hero-glow-b {
  width: 480px; height: 480px;
  bottom: -200px; left: -150px;
  background: radial-gradient(circle, rgba(79,209,224,.22), transparent 70%);
  animation: drift-b 20s ease-in-out infinite alternate;
}
@keyframes drift-a {
  from { transform: translate3d(0,0,0) scale(1); }
  to   { transform: translate3d(-46px, 40px, 0) scale(1.09); }
}
@keyframes drift-b {
  from { transform: translate3d(0,0,0) scale(1); }
  to   { transform: translate3d(52px, -34px, 0) scale(1.13); }
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue-300);
  margin: 0 0 16px;
}
.pulse-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--cyan-400);
  box-shadow: 0 0 0 0 rgba(79,209,224,.65);
  animation: pulse 2.4s ease-out infinite;
  flex-shrink: 0;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(79,209,224,.6); }
  70%  { box-shadow: 0 0 0 9px rgba(79,209,224,0); }
  100% { box-shadow: 0 0 0 0 rgba(79,209,224,0); }
}

/* The hero title is white — explicitly, so no global rule can darken it. */
.hero-title {
  font-size: clamp(2.4rem, 5.4vw, 3.9rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  text-wrap: balance;
}

/* Rotating specialty line */
.hero-rotator {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2.1vw, 1.32rem);
  font-weight: 500;
  margin-bottom: 20px;
  color: rgba(255,255,255,.62);
}
/* inline-grid with every item stacked in the same cell: the container sizes
   itself to the WIDEST phrase, so none of them get clipped. */
.rotator {
  display: inline-grid;
  overflow: hidden;
  vertical-align: bottom;
}
.rotator-item {
  grid-area: 1 / 1;
  white-space: nowrap;
  color: transparent;
  background: linear-gradient(100deg, var(--blue-300), var(--cyan-400));
  -webkit-background-clip: text;
  background-clip: text;
  opacity: 0;
  transform: translateY(100%);
  transition: opacity 460ms ease, transform 460ms cubic-bezier(.4,0,.2,1);
}
.rotator-item.is-active { opacity: 1; transform: translateY(0); }
.rotator-item.is-leaving { opacity: 0; transform: translateY(-100%); }

.hero-lede {
  font-size: 1.08rem;
  color: rgba(255,255,255,.76);
  max-width: 560px;
  margin-bottom: 30px;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 13px;
  margin-bottom: 30px;
}

.hero-tags { display: flex; flex-wrap: wrap; gap: 9px; }
.hero-tags li {
  font-size: 0.8rem;
  font-weight: 500;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.16);
  color: rgba(255,255,255,.82);
  background: rgba(255,255,255,.045);
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}
.hero-tags li:hover {
  border-color: rgba(76,141,255,.6);
  background: rgba(76,141,255,.12);
  transform: translateY(-2px);
}

.hero-visual { display: flex; justify-content: center; }
.portrait-card { position: relative; width: 100%; max-width: 310px; }

.portrait-ring {
  position: absolute;
  inset: -14px;
  border-radius: calc(var(--radius-lg) + 14px);
  background: conic-gradient(from 0deg, transparent 0deg, rgba(76,141,255,.55) 90deg, rgba(79,209,224,.5) 180deg, transparent 300deg);
  animation: spin 9s linear infinite;
  filter: blur(14px);
  opacity: .75;
}
@keyframes spin { to { transform: rotate(360deg); } }

.portrait-fallback,
.portrait-img {
  position: relative;
  aspect-ratio: 4 / 5;
  width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,.14);
  box-shadow: 0 30px 60px -20px rgba(0,0,0,.65);
}
.portrait-fallback {
  background: linear-gradient(160deg, var(--navy-700), var(--navy-900));
  display: flex;
  align-items: center;
  justify-content: center;
}
.portrait-fallback span {
  font-family: var(--font-display);
  font-size: 4.8rem;
  font-weight: 700;
  background: linear-gradient(135deg, #fff, var(--blue-300));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.portrait-img { object-fit: cover; }

.portrait-badge {
  position: absolute;
  left: 50%;
  bottom: -20px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 27, 48, 0.94);
  border: 1px solid rgba(255,255,255,.15);
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.79rem;
  font-weight: 500;
  white-space: nowrap;
  backdrop-filter: blur(8px);
  color: #fff;
}
.badge-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #33d17a;
  box-shadow: 0 0 0 3px rgba(51,209,122,.22);
  flex-shrink: 0;
}

.scroll-cue {
  position: absolute;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%);
  width: 22px; height: 36px;
  border: 1px solid rgba(255,255,255,.32);
  border-radius: 12px;
  z-index: 1;
}
.scroll-cue span {
  position: absolute;
  top: 6px; left: 50%;
  width: 4px; height: 8px;
  border-radius: 2px;
  background: var(--blue-300);
  transform: translateX(-50%);
  animation: scrollcue 1.9s ease-in-out infinite;
}
@keyframes scrollcue {
  0%   { opacity: 1; top: 6px; }
  70%  { opacity: 0; top: 19px; }
  100% { opacity: 0; top: 6px; }
}

/* Single-column hero: everything centers, including the portrait and its badge. */
@media (max-width: 940px) {
  .hero { min-height: auto; padding: calc(var(--header-h) + 34px) 0 56px; }
  /* No justify-items:center here — it shrinks grid items to their content
     and collapses the portrait card, which sizes itself with width:100%. */
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 26px;
    text-align: center;
  }

  .hero-visual { order: -1; margin: 0 0 30px; justify-content: center; }
  .portrait-card { max-width: 200px; margin: 0 auto; }
  .portrait-fallback span { font-size: 3.4rem; }
  .portrait-badge { font-size: .72rem; padding: 8px 15px; }

  .hero-copy { display: flex; flex-direction: column; align-items: center; width: 100%; }
  .hero-rotator { justify-content: center; }
  .hero-lede { margin-left: auto; margin-right: auto; }
  .hero-ctas { justify-content: center; }
  .hero-tags { justify-content: center; }

  .scroll-cue { display: none; }
}

/* Touch screens: enlarge tap targets that are only ~21px tall on desktop.
   WCAG 2.2 AA asks for 24px minimum; 40px is what actually feels right
   under a thumb. Padding grows the hit area without changing the look. */
@media (max-width: 940px) {
  .project-links { padding-top: 6px; gap: 8px 20px; }
  .project-links a { padding: 9px 0; }

  .footer-nav { gap: 4px 22px; }
  .footer-nav a,
  .footer-actions a { display: inline-block; padding: 9px 0; }
  .footer-actions { gap: 4px 20px; }

  .header-actions .btn-primary.btn-sm { padding: 11px 16px; }
  .contact-card { padding: 22px; }
}

/* Below ~380px the badge is wider than the portrait it sits under —
   let it size to its own text instead of overflowing the card. */
@media (max-width: 400px) {
  .portrait-badge {
    font-size: .68rem;
    padding: 7px 12px;
    max-width: calc(100vw - 60px);
  }
}

/* ---------- Metrics ---------- */
.metrics {
  background: var(--navy-900);
  padding: 44px 0;
  border-top: 1px solid rgba(255,255,255,.06);
}
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.metric {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding-left: 18px;
  border-left: 2px solid rgba(76,141,255,.42);
}
.metric-num {
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3vw, 2.15rem);
  font-weight: 700;
  color: #fff;
  font-variant-numeric: tabular-nums;
}
.metric-label { font-size: 0.83rem; color: rgba(255,255,255,.6); line-height: 1.45; }

@media (max-width: 880px) {
  .metrics-grid { grid-template-columns: repeat(2, 1fr); gap: 26px 18px; }
}

/* ---------- Tech marquee ---------- */
.marquee {
  background: var(--navy-950);
  border-top: 1px solid rgba(255,255,255,.06);
  border-bottom: 1px solid rgba(255,255,255,.06);
  overflow: hidden;
  padding: 15px 0;
  mask-image: linear-gradient(90deg, transparent, black 12%, black 88%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, black 12%, black 88%, transparent);
}
.marquee-track {
  display: flex;
  align-items: center;
  gap: 26px;
  width: max-content;
  animation: marquee 42s linear infinite;
}
.marquee-track span {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255,255,255,.42);
  white-space: nowrap;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
/* Continuous motion is genuinely intrusive — this one respects the setting. */
@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; }
}

/* ---------- Sections ---------- */
.section { padding: 88px 0; }
.section-alt { background: var(--bg-alt); }

.section-head { max-width: 700px; margin-bottom: 40px; }
.section-head .eyebrow { color: var(--blue-500); }
.section-head h2 {
  font-size: clamp(1.65rem, 3.3vw, 2.25rem);
  color: var(--text);
  margin-bottom: 10px;
  text-wrap: balance;
}
.section-sub { color: var(--text-muted); font-size: 1rem; }

/* ---------- About ---------- */
.about-layout {
  display: grid;
  grid-template-columns: 1.55fr 1fr;
  gap: 44px;
  align-items: start;
}
.about-body { font-size: 1.03rem; color: var(--text-muted); }
.about-body strong { color: var(--text); font-weight: 600; }
.about-body p { margin-bottom: 1.1em; }

.about-panel {
  position: relative;
  background: linear-gradient(160deg, var(--navy-900), var(--navy-800));
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg);
  padding: 30px;
  color: #fff;
  box-shadow: 0 26px 50px -28px rgba(10,18,32,.6);
  overflow: hidden;
}
.about-panel::before {
  content: '';
  position: absolute;
  top: -70px; right: -70px;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(47,111,235,.4), transparent 70%);
  filter: blur(30px);
}
.about-panel h3 {
  position: relative;
  font-size: 0.78rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--blue-300);
  margin-bottom: 20px;
}
.fact-list { position: relative; display: flex; flex-direction: column; }
.fact-list li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(255,255,255,.09);
}
.fact-list li:last-child { border-bottom: none; }
.fact-key {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: rgba(255,255,255,.45);
}
.fact-val { font-size: 0.93rem; font-weight: 500; color: #fff; }

@media (max-width: 900px) {
  .about-layout { grid-template-columns: 1fr; gap: 32px; }
}

/* ---------- Skills ---------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.skill-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.skill-card:hover {
  border-color: rgba(76,141,255,.55);
  transform: translateY(-4px);
  box-shadow: 0 18px 36px -20px rgba(47,111,235,.42);
}
.skill-card h3 {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 1rem;
  color: var(--text);
  margin-bottom: 15px;
}
.skill-idx {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--blue-500);
  letter-spacing: .05em;
}

.tag-list { display: flex; flex-wrap: wrap; gap: 7px; }
.tag-list li {
  font-size: 0.81rem;
  padding: 6px 11px;
  border-radius: 8px;
  background: var(--gray-100);
  color: var(--gray-900);
  border: 1px solid var(--border);
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}
.skill-card:hover .tag-list li { background: rgba(47,111,235,.07); border-color: rgba(47,111,235,.2); }
.tag-list-sm li { font-size: 0.76rem; padding: 4px 9px; }

.plain-list { display: flex; flex-direction: column; gap: 9px; }
.plain-list li {
  position: relative;
  padding-left: 16px;
  font-size: 0.89rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.plain-list li::before {
  content: '';
  position: absolute;
  left: 0; top: .6em;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--blue-400);
}

@media (max-width: 940px) { .skills-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 580px) { .skills-grid { grid-template-columns: 1fr; } }

/* ---------- Timeline ---------- */
.timeline {
  position: relative;
  padding-left: 30px;
}
.timeline-rail {
  position: absolute;
  left: 0; top: 6px; bottom: 6px;
  width: 2px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}
.timeline-rail i {
  position: absolute;
  left: 0; top: 0;
  width: 100%;
  height: 0;
  background: linear-gradient(180deg, var(--blue-500), var(--cyan-400));
  transition: height 120ms linear;
}
.timeline-item { position: relative; padding: 0 0 20px 0; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-marker {
  position: absolute;
  left: -37px;
  top: 24px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--blue-500);
  z-index: 1;
  transition: box-shadow var(--transition), background var(--transition);
}
.timeline-item:hover .timeline-marker {
  background: var(--blue-500);
  box-shadow: 0 0 0 5px rgba(47,111,235,.16);
}

.timeline-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.timeline-card:hover {
  border-color: rgba(76,141,255,.5);
  box-shadow: 0 16px 34px -22px rgba(16,27,48,.4);
  transform: translateX(3px);
}
.timeline-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 16px;
  margin-bottom: 9px;
}
.timeline-meta h3 { font-size: 1.08rem; color: var(--text); }
.timeline-tag {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--blue-500);
  background: rgba(47,111,235,.1);
  padding: 3px 9px;
  border-radius: 999px;
  margin-left: 8px;
  vertical-align: middle;
}
.timeline-date {
  font-size: 0.84rem;
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.timeline-card p { color: var(--text-muted); margin-bottom: 13px; font-size: .95rem; }

/* ---------- Projects ---------- */
/* 3 destacados y 9 casos: en 3 columnas ambas rejillas cierran filas
   completas, sin huecos ni tarjetas huérfanas. */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 60px;
}
.project-card {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.project-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 46px -24px rgba(16,27,48,.35);
  border-color: rgba(76,141,255,.55);
}
.project-thumb {
  height: 132px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 3px;
  padding: 16px;
  position: relative;
  overflow: hidden;
}
.project-thumb::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.13) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.13) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: .45;
  transition: transform 600ms ease, opacity var(--transition);
}
.project-card:hover .project-thumb::before { transform: scale(1.14); opacity: .7; }
.project-thumb-title {
  position: relative;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  color: #fff;
}
.project-thumb-kind {
  position: relative;
  font-size: 0.71rem;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: rgba(255,255,255,.6);
}
.project-thumb[data-tone="a"] { background: linear-gradient(135deg, #123a7a, #0a1220); }
.project-thumb[data-tone="b"] { background: linear-gradient(135deg, #1c4fa8, #0a1220); }
.project-thumb[data-tone="c"] { background: linear-gradient(135deg, #0f2f63, #163a72); }

.project-body { padding: 20px; display: flex; flex-direction: column; flex: 1; }
.project-body h3 { font-size: 1.02rem; color: var(--text); margin-bottom: 7px; }
.project-body p { color: var(--text-muted); font-size: 0.89rem; margin-bottom: 13px; }
.project-body .tag-list { margin-top: auto; }
.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: 2px 16px;
  margin-top: 14px;
  padding-top: 7px;
  border-top: 1px solid var(--border);
}
/* Vertical padding keeps these standalone links above the 24px minimum
   target size (WCAG 2.2 SC 2.5.8) on pointer devices too, not just touch. */
.project-links a {
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--blue-500);
  padding: 6px 0;
  transition: color var(--transition);
}
.project-links a span { display: inline-block; transition: transform var(--transition); }
.project-links a:hover { color: var(--blue-400); }
.project-links a:hover span { transform: translate(2px, -2px); }

.subsection-head { max-width: 720px; margin-bottom: 26px; }
.subsection-head h3 { font-size: 1.28rem; color: var(--text); margin-bottom: 8px; }

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.case-card {
  padding: 20px;
  border-radius: var(--radius-md);
  background: var(--bg);
  border: 1px solid var(--border);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.case-card:hover {
  border-color: rgba(76,141,255,.45);
  transform: translateY(-3px);
  box-shadow: 0 14px 30px -20px rgba(16,27,48,.3);
}
.case-status {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: #1a7f4b;
  background: rgba(26,127,75,.1);
  border: 1px solid rgba(26,127,75,.22);
  padding: 3px 9px;
  border-radius: 999px;
  margin-bottom: 11px;
}
.case-status.is-past {
  color: var(--gray-600);
  background: var(--gray-100);
  border-color: var(--border);
}
.case-card h4 { font-size: 0.96rem; color: var(--text); margin-bottom: 7px; line-height: 1.3; }
.case-card p { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 12px; }

@media (max-width: 1080px) {
  .projects-grid, .case-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .projects-grid, .case-grid { grid-template-columns: 1fr; }
}

/* ---------- Education ---------- */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.edu-block {
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-alt);
  transition: border-color var(--transition), transform var(--transition);
}
.edu-block:hover { border-color: rgba(76,141,255,.45); transform: translateY(-3px); }
.edu-block h3 {
  font-size: 0.78rem;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--blue-500);
  margin-bottom: 16px;
}
.edu-item { display: flex; flex-direction: column; gap: 3px; margin-bottom: 15px; }
.edu-item:last-child { margin-bottom: 0; }
.edu-item strong { font-size: 0.93rem; color: var(--text); line-height: 1.35; }
.edu-item span { font-size: 0.82rem; color: var(--text-muted); }

@media (max-width: 940px) { .edu-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .edu-grid { grid-template-columns: 1fr; } }

/* ---------- CTA band ---------- */
.cta-band {
  position: relative;
  background: linear-gradient(135deg, var(--navy-950), var(--navy-800));
  color: #fff;
  padding: 84px 0;
  text-align: center;
  overflow: hidden;
}
.cta-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 90% at 50% 120%, rgba(47,111,235,.35), transparent 70%),
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: auto, 52px 52px, 52px 52px;
}
.cta-inner { position: relative; max-width: 720px; margin: 0 auto; }
.cta-inner h2 {
  font-size: clamp(1.45rem, 3vw, 2rem);
  color: #fff;
  margin-bottom: 14px;
  text-wrap: balance;
}
.cta-inner p { color: rgba(255,255,255,.72); margin-bottom: 28px; font-size: 1.01rem; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 13px; justify-content: center; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 36px;
}
.contact-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.contact-card:hover {
  transform: translateY(-4px);
  border-color: rgba(76,141,255,.55);
  box-shadow: 0 18px 36px -20px rgba(47,111,235,.35);
}
.contact-icon { color: var(--blue-500); margin-bottom: 6px; }
.contact-icon svg { width: 24px; height: 24px; }
.contact-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.contact-value { font-weight: 600; color: var(--text); word-break: break-word; font-size: .95rem; }
.contact-go {
  position: absolute;
  top: 20px; right: 20px;
  color: var(--blue-500);
  opacity: 0;
  transform: translate(-4px, 4px);
  transition: opacity var(--transition), transform var(--transition);
}
.contact-card:hover .contact-go { opacity: 1; transform: translate(0,0); }

.contact-cv {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  padding-top: 26px;
  border-top: 1px solid var(--border);
}
.contact-cv p { color: var(--text-muted); margin: 0; }

@media (max-width: 820px) { .contact-grid { grid-template-columns: 1fr; } }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy-950);
  color: rgba(255,255,255,.7);
  padding: 44px 0 0;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand div { display: flex; flex-direction: column; }
.footer-brand strong { color: #fff; font-family: var(--font-display); font-size: 0.94rem; }
.footer-brand span { font-size: 0.79rem; color: rgba(255,255,255,.55); }

.footer-nav { display: flex; gap: 0 20px; flex-wrap: wrap; }
.footer-nav a {
  display: inline-block;
  font-size: 0.87rem;
  padding: 6px 0;
  transition: color var(--transition);
}
.footer-nav a:hover { color: #fff; }

.footer-actions { display: flex; gap: 0 18px; flex-wrap: wrap; font-size: 0.87rem; }
.footer-actions a { display: inline-block; padding: 6px 0; transition: color var(--transition); }
.footer-actions a:hover { color: #fff; }

.footer-bottom {
  padding: 18px 0;
  text-align: center;
  font-size: 0.79rem;
  color: rgba(255,255,255,.42);
}

/* ---------- Spotlight hover (cards follow the cursor) ---------- */
[data-spotlight] { position: relative; isolation: isolate; }
[data-spotlight]::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(320px circle at var(--mx, 50%) var(--my, 50%), rgba(47,111,235,.09), transparent 65%);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
  z-index: -1;
}
[data-spotlight]:hover::after { opacity: 1; }
.about-panel[data-spotlight]::after,
.timeline-card[data-spotlight]::after { background: radial-gradient(320px circle at var(--mx,50%) var(--my,50%), rgba(76,141,255,.16), transparent 65%); }

/* ---------- Reveal-on-scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 620ms cubic-bezier(.4,0,.2,1), transform 620ms cubic-bezier(.4,0,.2,1);
  transition-delay: var(--delay, 0ms);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* Defensive: content must NEVER stay invisible if JS fails to run. */
.no-js .reveal,
.reveal[data-split] { opacity: 1; transform: none; }

/* ---------- Focus & selection ---------- */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--blue-400);
  outline-offset: 3px;
  border-radius: 4px;
}
::selection { background: var(--blue-500); color: #fff; }