/* ==========================================================================
   VITALII ZHDANSKYI — PORTFOLIO DASHBOARD
   Arquitectura multipágina (MPA) · Vanilla CSS · Sin dependencias
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. TOKENS
   -------------------------------------------------------------------------- */
:root[data-theme="dark"] {
  --bg: #0a0a0a;
  --bg2: #111111;
  --bg3: #1a1a1a;
  --fg: #f0f0f0;
  --fg2: #999999;
  /* gris apagado. antes era #555, que sobre el fondo daba 2.66:1 y dejaba
     ilegibles etiquetas como "03 — Proyectos" o los enlaces del pie */
  --fg3: #808080;
  --red: #8b0000;
  --red2: #c0392b;
  --red3: #e74c3c;
  --accent: #cc2200;
  --border: #2a2a2a;
  --card: #141414;
  --card2: #1e1e1e;
  --shadow: rgba(139, 0, 0, 0.15);
  --glow: rgba(200, 34, 0, 0.3);
  --glass: rgba(10, 10, 10, 0.82);
  --ok: #4ade80;
}

:root[data-theme="light"] {
  --bg: #f4f4f2;
  --bg2: #ebebeb;
  --bg3: #e0e0e0;
  --fg: #111111;
  --fg2: #555555;
  /* mismo motivo que en el tema oscuro: #999 sobre el fondo claro daba 2.57:1 */
  --fg3: #6e6e6e;
  --red: #8b0000;
  --red2: #c0392b;
  --red3: #e74c3c;
  --accent: #cc2200;
  --border: #cccccc;
  --card: #ffffff;
  --card2: #f8f8f8;
  --shadow: rgba(139, 0, 0, 0.1);
  --glow: rgba(200, 34, 0, 0.2);
  --glass: rgba(244, 244, 242, 0.82);
  --ok: #15803d;
}

:root {
  --rail: 268px;
  --topbar-h: 58px;
  /* easing de la interfaz: rápido pero sin tirón */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  /* easing de las entradas al hacer scroll: más suave y sin rebote */
  --ease-soft: cubic-bezier(0.33, 1, 0.68, 1);
}

/* --------------------------------------------------------------------------
   2. RESET / BASE
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'DM Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--bg);
  color: var(--fg);
  overflow-x: hidden;
  cursor: auto; /* puntero de ratón estándar */
  transition: background 0.5s, color 0.5s;
}

a,
button,
label,
summary,
[role="button"] {
  cursor: pointer;
}

img,
svg {
  max-width: 100%;
  display: block;
}

::selection {
  background: var(--accent);
  color: #fff;
}

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

/* Grano de película — idéntico al diseño original */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1;
  opacity: 0.4;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  background: var(--accent);
  color: #fff;
  padding: 0.8rem 1.4rem;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
}
.skip-link:focus {
  left: 0;
}

/* --------------------------------------------------------------------------
   3. SIDEBAR (DASHBOARD)
   -------------------------------------------------------------------------- */
/* El menú arranca fuera de la vista en cualquier tamaño de pantalla y entra
   deslizándose cuando se pulsa la hamburguesa. */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--rail);
  display: flex;
  flex-direction: column;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  z-index: 90;
  transform: translateX(-100%);
  transition: transform 0.35s var(--ease), background 0.5s, border-color 0.5s;
}
body.nav-open .sidebar {
  transform: none;
}

.sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  height: var(--topbar-h);
  padding: 0 1.25rem;
  border-bottom: 1px solid var(--border);
  flex: 0 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--fg);
  overflow: hidden;
}
.brand-mark {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.35rem;
  letter-spacing: 0.1em;
  line-height: 1;
  flex: 0 0 auto;
}
.brand-mark span {
  color: var(--accent);
}
.brand-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  white-space: nowrap;
}
.brand-name {
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg);
  line-height: 1;
}
.brand-role {
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg3);
  line-height: 1;
}

.rail-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--fg2);
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 2px;
  font-size: 0.82rem;
  line-height: 1;
  flex: 0 0 auto;
  transition: color 0.25s, border-color 0.25s, background 0.25s;
}
.rail-toggle:hover {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}
.rail-toggle .chev {
  display: block;
  transition: transform 0.35s var(--ease);
}

.sidebar-scroll {
  flex: 1 1 auto;
  overflow-y: auto;
  overflow-x: hidden;
  padding-bottom: 1rem;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.sidebar-scroll::-webkit-scrollbar {
  width: 6px;
}
.sidebar-scroll::-webkit-scrollbar-thumb {
  background: var(--border);
}

.nav-group-title {
  font-size: 0.65rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--fg3);
  padding: 0 1.25rem;
  margin: 1.5rem 0 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  white-space: nowrap;
}
.nav-group-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.nav-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.6rem 1.25rem;
  color: var(--fg2);
  text-decoration: none;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transition: color 0.25s, background 0.25s;
}
.nav-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--accent);
  transform: scaleY(0);
  transition: transform 0.3s var(--ease);
}
.nav-item:hover {
  color: var(--fg);
  background: var(--card);
}
.nav-item:hover::before {
  transform: scaleY(1);
}
.nav-item.active {
  color: var(--fg);
  background: var(--card);
}
.nav-item.active::before {
  transform: scaleY(1);
}
.nav-num {
  font-size: 0.7rem;
  color: var(--fg3);
  flex: 0 0 auto;
  min-width: 1.5rem;
  transition: color 0.25s;
}
.nav-item.active .nav-num,
.nav-item:hover .nav-num {
  color: var(--accent);
}
.nav-label {
  white-space: nowrap;
  overflow: hidden;
}

.sidebar-foot {
  flex: 0 0 auto;
  border-top: 1px solid var(--border);
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.status-card {
  border: 1px solid var(--border);
  background: var(--card);
  padding: 0.75rem 0.85rem;
  border-radius: 2px;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.status-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg2);
  white-space: nowrap;
}
.status-row strong {
  color: var(--fg);
  font-weight: 400;
}
.pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ok);
  flex: 0 0 auto;
  box-shadow: 0 0 0 0 currentColor;
  animation: pulse 2.4s infinite;
  color: var(--ok);
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.5); }
  70% { box-shadow: 0 0 0 7px rgba(74, 222, 128, 0); }
  100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0); }
}

.side-social {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.side-social a {
  flex: 1 1 auto;
  text-align: center;
  border: 1px solid var(--border);
  color: var(--fg2);
  text-decoration: none;
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.45rem 0.3rem;
  border-radius: 2px;
  transition: all 0.25s;
}
.side-social a:hover {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}
.s-mini {
  display: none;
}

/* --------------------------------------------------------------------------
   4. LAYOUT PRINCIPAL
   -------------------------------------------------------------------------- */
/* El menú flota por encima del contenido, así que el contenido no se desplaza
   al abrirlo ni al cerrarlo. */
.main {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 2;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 70;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0 2rem;
  border-bottom: 1px solid var(--border);
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: background 0.5s, border-color 0.5s;
}

/* Único control del menú, visible en todos los anchos. */
.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
}
.hamburger span {
  width: 20px;
  height: 1px;
  background: var(--fg);
  transition: transform 0.3s, opacity 0.3s;
}
body.nav-open .hamburger span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
body.nav-open .hamburger span:nth-child(2) {
  opacity: 0;
}
body.nav-open .hamburger span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.crumbs {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg3);
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
}
.crumbs a {
  color: var(--fg3);
  text-decoration: none;
  transition: color 0.25s;
}
.crumbs a:hover {
  color: var(--accent);
}
.crumbs .sep {
  color: var(--border);
}
.crumbs strong {
  color: var(--fg);
  font-weight: 400;
}

.topbar-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.top-clock {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--fg3);
  white-space: nowrap;
}
.theme-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--fg2);
  padding: 0.38rem 0.85rem;
  font-family: inherit;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border-radius: 2px;
  transition: all 0.3s;
  white-space: nowrap;
}
.theme-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 85;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}
body.nav-open .backdrop {
  opacity: 1;
  visibility: visible;
}

.content {
  flex: 1 1 auto;
  animation: pageIn 0.55s var(--ease) both;
}
@keyframes pageIn {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}

/* --------------------------------------------------------------------------
   5. CABECERA DE PÁGINA / SECCIONES
   -------------------------------------------------------------------------- */
.page-head {
  padding: 4.5rem 2.5rem 3rem;
  position: relative;
  overflow: hidden;
}
.page-head::after {
  content: '';
  position: absolute;
  right: 6vw;
  top: 0;
  width: 1px;
  height: 100%;
  background: linear-gradient(to bottom, transparent, var(--border), transparent);
}

.section-label {
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--fg3);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.page-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(3rem, 8vw, 6.5rem);
  line-height: 0.9;
  letter-spacing: 0.01em;
}
.page-title em {
  color: var(--accent);
  font-style: normal;
}

.page-intro {
  font-size: 0.86rem;
  line-height: 2;
  color: var(--fg2);
  max-width: 62ch;
  margin-top: 1.8rem;
  border-left: 2px solid var(--accent);
  padding-left: 1.1rem;
}

.section {
  padding: 4rem 2.5rem;
  border-top: 1px solid var(--border);
  position: relative;
}
.section-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 0.95;
  margin-bottom: 2.5rem;
  letter-spacing: 0.02em;
}
.section-title em {
  color: var(--accent);
  font-style: normal;
}

.red-bar {
  width: 40px;
  height: 2px;
  background: var(--accent);
  margin-bottom: 1rem;
  display: block;
}

.prose {
  font-size: 0.84rem;
  line-height: 2.05;
  color: var(--fg2);
  max-width: 78ch;
}
.prose p + p {
  margin-top: 1.4rem;
}
.prose strong {
  color: var(--fg);
  font-weight: 400;
}

/* --------------------------------------------------------------------------
   6. HERO (INICIO)
   -------------------------------------------------------------------------- */
.hero {
  min-height: calc(100vh - var(--topbar-h));
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 5rem 2.5rem 4rem;
  position: relative;
  overflow: hidden;
}
.hero-counter {
  font-size: 0.74rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--fg3);
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.2s forwards;
}
.hero-name {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(4rem, 13vw, 12rem);
  line-height: 0.88;
  letter-spacing: -0.01em;
}
.hero-name .line {
  display: block;
  overflow: hidden;
}
.hero-name .line span {
  display: block;
  transform: translateY(110%);
  animation: slideUp 0.9s var(--ease) forwards;
}
.hero-name .line:nth-child(1) span { animation-delay: 0.3s; }
.hero-name .line:nth-child(2) span { animation-delay: 0.45s; color: var(--accent); }

.hero-subtitle {
  font-size: 0.86rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg2);
  margin-top: 2.2rem;
  border-left: 2px solid var(--accent);
  padding-left: 1rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.9s forwards;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2.6rem;
  opacity: 0;
  animation: fadeUp 0.8s 1.2s forwards;
}
.hero-slash {
  position: absolute;
  right: 8vw;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 55vh;
  background: linear-gradient(to bottom, transparent, var(--accent), transparent);
  opacity: 0;
  animation: fadeIn 1s 1s forwards;
}

/* --------------------------------------------------------------------------
   7. BOTONES / CTA
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.15rem;
  letter-spacing: 0.06em;
  color: var(--fg);
  text-decoration: none;
  border: 1px solid var(--border);
  padding: 0.85rem 1.7rem;
  position: relative;
  overflow: hidden;
  background: none;
  border-radius: 1px;
  transition: color 0.3s, border-color 0.3s;
}
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
  z-index: 0;
}
.btn:hover::before {
  transform: scaleX(1);
}
.btn:hover {
  color: #fff;
  border-color: var(--accent);
}
.btn > span {
  position: relative;
  z-index: 1;
}
.btn--solid {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}
.btn--solid::before {
  background: var(--red);
  transform: translateX(-110%);
}
.btn--solid:hover::before {
  transform: translateX(0);
}

/* --------------------------------------------------------------------------
   8. TAGS / BADGES
   -------------------------------------------------------------------------- */
.tag {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg3);
  border: 1px solid var(--border);
  padding: 0.22rem 0.55rem;
  border-radius: 1px;
  transition: border-color 0.3s, color 0.3s;
  white-space: nowrap;
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

/* --------------------------------------------------------------------------
   9. GRIDS DE TARJETAS
   -------------------------------------------------------------------------- */
.grid {
  display: grid;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }

.card {
  background: var(--card);
  padding: 2.2rem;
  position: relative;
  overflow: hidden;
  transition: background 0.3s;
}
.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.card:hover {
  background: var(--card2);
}
.card:hover::before {
  transform: scaleX(1);
}
.card:hover .tag {
  border-color: var(--red);
  color: var(--red2);
}

.card-name {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2rem;
  line-height: 1;
  letter-spacing: 0.03em;
  margin: 1.2rem 0 0.9rem;
}
.card-desc {
  font-size: 0.84rem;
  line-height: 1.9;
  color: var(--fg2);
  margin-bottom: 1.6rem;
}
.card-num {
  position: absolute;
  bottom: 1.2rem;
  right: 1.8rem;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 4.5rem;
  line-height: 1;
  color: var(--border);
  pointer-events: none;
  transition: color 0.3s;
}
.card:hover .card-num {
  color: var(--bg3);
}

.card-link {
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: gap 0.3s;
  position: relative;
  z-index: 2;
}
.card-link::after {
  content: '→';
}
.card-link:hover {
  gap: 1rem;
}

/* Lista de logros dentro de tarjeta */
.bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 1.6rem;
}
.bullets li {
  font-size: 0.82rem;
  line-height: 1.75;
  color: var(--fg2);
  padding-left: 1.1rem;
  position: relative;
}
.bullets li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 5px;
  height: 1px;
  background: var(--accent);
}

/* --------------------------------------------------------------------------
   11. TIMELINE DE EXPERIENCIA
   -------------------------------------------------------------------------- */
.exp-list {
  display: flex;
  flex-direction: column;
}
.exp-item {
  display: grid;
  grid-template-columns: minmax(200px, 1fr) 2.2fr auto;
  gap: 2rem;
  padding: 2.2rem 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
  position: relative;
  overflow: hidden;
  transition: padding-left 0.35s var(--ease);
}
.exp-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0;
  background: var(--shadow);
  transition: width 0.45s var(--ease);
}
.exp-item:hover::before {
  width: 100%;
}
.exp-item:hover {
  padding-left: 1.5rem;
}
.exp-role {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.55rem;
  line-height: 1.05;
  letter-spacing: 0.03em;
  color: var(--fg);
  position: relative;
  z-index: 1;
}
.exp-org {
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  color: var(--fg2);
  margin-top: 0.4rem;
  position: relative;
  z-index: 1;
}
.exp-period {
  font-size: 0.74rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 0.35rem;
  position: relative;
  z-index: 1;
}
.exp-body {
  position: relative;
  z-index: 1;
}
.exp-body .bullets {
  margin-bottom: 1rem;
}
.exp-badge {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg3);
  border: 1px solid var(--border);
  padding: 0.3rem 0.6rem;
  white-space: nowrap;
  align-self: start;
  margin-top: 0.3rem;
  border-radius: 1px;
  position: relative;
  z-index: 1;
}
.exp-badge--live {
  color: var(--ok);
  border-color: var(--ok);
}

/* --------------------------------------------------------------------------
   12. SKILLS
   -------------------------------------------------------------------------- */
.skill-group {
  background: var(--card);
  padding: 2rem;
  transition: background 0.3s;
}
.skill-group:hover {
  background: var(--card2);
}
.skill-group-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.35rem;
  letter-spacing: 0.05em;
  color: var(--accent);
  margin-bottom: 1rem;
}
.skill-item {
  font-size: 0.8rem;
  line-height: 2;
  color: var(--fg2);
  border-bottom: 1px solid var(--border);
  padding: 0.2rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.skill-item:last-child {
  border-bottom: none;
}
.skill-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
  flex: 0 0 auto;
}

/* --------------------------------------------------------------------------
   13. CV / EDUCACIÓN
   -------------------------------------------------------------------------- */
.edu {
  background: var(--card);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  position: relative;
  overflow: hidden;
  transition: background 0.3s;
}
.edu:hover {
  background: var(--card2);
}
.edu::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.edu:hover::before {
  transform: scaleX(1);
}
.edu-period {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}
.edu-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.7rem;
  line-height: 1.05;
  letter-spacing: 0.03em;
}
.edu-org {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--fg2);
}
.edu-desc {
  font-size: 0.8rem;
  line-height: 1.85;
  color: var(--fg2);
  margin-top: 0.3rem;
}

.datalist {
  display: flex;
  flex-direction: column;
}
.datalist-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1.5rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
}
.datalist-row:last-child {
  border-bottom: none;
}
.datalist-key {
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.7rem;
  color: var(--fg3);
  flex: 0 0 auto;
}
.datalist-val {
  color: var(--fg);
  text-align: right;
  word-break: break-word;
}
.datalist-val a {
  color: var(--fg);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  transition: color 0.25s, border-color 0.25s;
}
.datalist-val a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* --------------------------------------------------------------------------
   14. CONTACTO
   -------------------------------------------------------------------------- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 1.3rem;
}
.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.form-label {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg3);
}
.form-input,
.form-textarea {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--fg);
  font-family: inherit;
  font-size: 0.86rem;
  padding: 0.9rem 1.1rem;
  outline: none;
  border-radius: 1px;
  transition: border-color 0.3s, box-shadow 0.3s;
  width: 100%;
}
.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--fg3);
}
.form-input:focus,
.form-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--shadow);
}
.form-textarea {
  resize: vertical;
  min-height: 130px;
}
.form-note {
  font-size: 0.72rem;
  line-height: 1.8;
  color: var(--fg3);
}
.form-status {
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  color: var(--ok);
  min-height: 1em;
}
.form-status[data-state="error"] {
  color: var(--red3);
}

.channel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: var(--card);
  padding: 1.3rem 1.5rem;
  text-decoration: none;
  color: var(--fg);
  position: relative;
  overflow: hidden;
  transition: background 0.3s;
}
.channel:hover {
  background: var(--card2);
}
.channel::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--accent);
  transform: scaleY(0);
  transition: transform 0.35s var(--ease);
}
.channel:hover::before {
  transform: scaleY(1);
}
.channel-k {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg3);
  display: block;
  margin-bottom: 0.4rem;
}
.channel-v {
  font-size: 0.86rem;
  color: var(--fg);
  word-break: break-all;
}
.channel-go {
  color: var(--accent);
  font-size: 0.9rem;
  flex: 0 0 auto;
}

/* --------------------------------------------------------------------------
   15. MARQUEE
   -------------------------------------------------------------------------- */
.marquee-wrap {
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
  background: var(--bg2);
  white-space: nowrap;
}
.marquee-inner {
  display: inline-block;
  animation: marquee 22s linear infinite;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.15rem;
  letter-spacing: 0.05em;
  color: var(--fg3);
}
.marquee-inner span {
  color: var(--accent);
  margin: 0 0.9rem;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* --------------------------------------------------------------------------
   16. FOOTER
   -------------------------------------------------------------------------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  /* más aire entre columnas para que el bloque de enlaces no quede pegado */
  gap: 1.2rem 2rem;
}
.footer-name {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.05rem;
  color: var(--fg2);
  letter-spacing: 0.05em;
}
.footer-name span {
  color: var(--fg3);
}
.footer-links {
  display: flex;
  /* la separación vertical evita que las filas se peguen al envolver */
  gap: 0.5rem 1.6rem;
  flex-wrap: wrap;
  align-items: center;
}
.footer-links a {
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg3);
  text-decoration: none;
  transition: color 0.3s;
  /* el enlace medía 15px de alto: demasiado poco para pulsarlo con comodidad */
  display: inline-flex;
  align-items: center;
  min-height: 1.75rem;
  white-space: nowrap;
}
.footer-links a:hover {
  color: var(--accent);
}
.footer-copy {
  font-size: 0.7rem;
  color: var(--fg3);
}

/* --------------------------------------------------------------------------
   17. ANIMACIONES / UTILIDADES
   -------------------------------------------------------------------------- */
/* El estado oculto solo se aplica cuando hay JavaScript (clase `js` que el
   script inline del <head> pone en <html>). Sin JS todo se ve desde el inicio:
   el contenido nunca queda atrapado en opacity:0 para usuarios ni rastreadores. */
.js .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s var(--ease-soft), transform 0.7s var(--ease-soft);
}
.js .reveal.visible {
  opacity: 1;
  transform: none;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: none; }
}
@keyframes slideUp {
  from { transform: translateY(110%); }
  to { transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.center-narrow {
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
}

/* --------------------------------------------------------------------------
   PESO DE LOS TEXTOS PEQUEÑOS
   DM Mono trae 300/400/500. Los textos por debajo de ~0.9rem se veían
   demasiado finos sobre el fondo oscuro, así que pasan de 400 a 500.
   Solo cambia el grosor: ni la familia, ni el tamaño, ni el color.
   -------------------------------------------------------------------------- */
.section-label,
.nav-group-title,
.nav-item,
.nav-num,
.brand-name,
.brand-role,
.status-row,
.side-social a,
.crumbs,
.top-clock,
.theme-btn,
.lang-switch a,
.tag,
.card-kind,
.card-link,
.exp-period,
.exp-badge,
.edu-period,
.edu-org,
.skill-group-title,
.datalist-key,
.form-label,
.form-note,
.form-status,
.channel-k,
.footer-links a,
.footer-copy,
.hero-counter {
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   ESQUEMA TÉCNICO (portada)
   Usa los mismos tokens que las tarjetas: nada de estética nueva. Las líneas
   se dibujan con stroke-dashoffset y los nodos entran escalonados; ambas cosas
   solo animan opacity/transform/stroke, sin provocar recálculo de layout.
   -------------------------------------------------------------------------- */
.dg-card {
  max-width: 380px;
  margin-top: 1px;
}
.dg {
  width: 100%;
  height: auto;
  margin-top: 1.2rem;
  overflow: visible;
}
.dg-node rect {
  fill: var(--card2);
  stroke: var(--border);
  stroke-width: 1;
}
.dg-node text {
  fill: var(--fg2);
  font-family: 'DM Mono', ui-monospace, monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-anchor: middle;
  text-transform: uppercase;
}
.dg-link {
  stroke: var(--accent);
  stroke-width: 1.5;
}

/* estado de partida: solo cuando hay JS, para que sin él se vea entero */
.js .dg-node {
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.5s var(--ease-soft), transform 0.5s var(--ease-soft);
}
.js .dg-link {
  stroke-dasharray: 24;
  stroke-dashoffset: 24;
  transition: stroke-dashoffset 0.4s var(--ease-soft);
}
.js .reveal.visible .dg-node {
  opacity: 1;
  transform: none;
}
.js .reveal.visible .dg-link {
  stroke-dashoffset: 0;
}

/* solo para lectores de pantalla */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --------------------------------------------------------------------------
   19. PIEZAS AÑADIDAS: hero, tarjetas, idioma
   -------------------------------------------------------------------------- */
/* párrafo de presentación bajo el nombre, en la portada */
.hero-lead {
  font-size: 0.86rem;
  line-height: 2;
  color: var(--fg2);
  max-width: 60ch;
  margin-top: 1.6rem;
  opacity: 0;
  animation: fadeUp 0.8s 1.05s forwards;
}

/* etiqueta de tipo encima del nombre de una tarjeta */
.card-kind {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg3);
  margin-top: 1.1rem;
}
.card-kind + .card-name {
  margin-top: 0.4rem;
}

.grid--1 {
  grid-template-columns: 1fr;
}

/* las tecnologías de cada bloque de experiencia van al final */
.exp-body .tags {
  margin-top: 1rem;
}

/* conmutador de idioma de la barra superior */
.lang-switch {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 2px;
  overflow: hidden;
}
.lang-switch a {
  padding: 0.32rem 0.6rem;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--fg3);
  text-decoration: none;
  transition: color 0.25s, background 0.25s;
}
.lang-switch a:hover {
  color: var(--fg);
  background: var(--card);
}
.lang-switch a.on {
  color: #fff;
  background: var(--accent);
}

/* --------------------------------------------------------------------------
   18. RESPONSIVE
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .topbar {
    padding: 0 1.25rem;
  }
  .top-clock {
    display: none;
  }
  .page-head {
    padding: 3rem 1.25rem 2rem;
  }
  .page-head::after {
    display: none;
  }
  .section {
    padding: 3rem 1.25rem;
  }
  .hero {
    padding: 3.5rem 1.25rem 3rem;
  }
  .hero-slash {
    display: none;
  }
  .card {
    padding: 1.6rem;
  }
  .grid--3,
  .grid--2,
  .grid--4 {
    grid-template-columns: 1fr;
  }
  .exp-item {
    grid-template-columns: 1fr;
    gap: 0.9rem;
  }
  .exp-item:hover {
    padding-left: 0.8rem;
  }
  .exp-badge {
    justify-self: start;
  }
  .footer {
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem 1.25rem;
  }
  .card-num {
    font-size: 3.4rem;
  }
  .datalist-row {
    flex-direction: column;
    gap: 0.4rem;
  }
  .datalist-val {
    text-align: left;
  }
}

@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;
  }
  .js .reveal {
    opacity: 1;
    transform: none;
  }
  .hero-name .line span {
    transform: none;
  }
  /* el esquema se muestra ya dibujado, sin trazado progresivo */
  .js .dg-node {
    opacity: 1;
    transform: none;
  }
  .js .dg-link {
    stroke-dashoffset: 0;
  }
}

@media print {
  .sidebar,
  .topbar,
  .backdrop,
  .marquee-wrap {
    display: none !important;
  }
  .main {
    margin-left: 0 !important;
  }
  body {
    background: #fff;
    color: #000;
  }
}