/* =============================================================
   style.css — Portfolio personal de Gerardo González
   Estructura de secciones:
   1.  Variables de diseño (colores, tipografía, espaciado)
   2.  Reset y base
   3.  Utilidades (container, botones, tags)
   4.  Navbar
   5.  Hero
   6.  Sobre mí
   7.  Skills
   8.  Proyectos
   9.  Experiencia (Timeline)
   10. Educación
   11. Contacto
   12. Footer
   13. Responsive (tablet y mobile)
   ============================================================= */


/* ─────────────────────────────────────────────────────────────
   1. VARIABLES DE DISEÑO
   Modificar aquí para cambiar toda la paleta del sitio
   ───────────────────────────────────────────────────────────── */
:root {
  /* Colores principales */
  --clr-bg:         #fafbff;
  --clr-bg-alt:     #f2f4fa;
  --clr-surface:    #ffffff;
  --clr-border:     #dde3f0;

  /* Primario — azul marino muy oscuro */
  --clr-primary:    #090e1a;
  --clr-primary-h:  #0f1a30;
  --clr-primary-lt: #e8edf8;

  /* Acento — índigo vibrante */
  --clr-accent:     #4f46e5;
  --clr-accent-h:   #3d35cc;
  --clr-accent-lt:  #eeedfb;

  /* Texto */
  --clr-text:       #0d1424;
  --clr-text-muted: #1e2d47;
  --clr-text-light: #3d5070;

  /* Badges de instituciones */
  --clr-utec:       #0f4c81;
  --clr-mit:        #8b0000;

  /* Tipografía — sin dependencias externas */
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
               Helvetica, Arial, sans-serif;
  --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;

  /* Espaciado base */
  --space-xs:  0.375rem;
  --space-sm:  0.75rem;
  --space-md:  1.25rem;
  --space-lg:  2rem;
  --space-xl:  3.5rem;
  --space-2xl: 6rem;

  /* Bordes */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 999px;

  /* Sombras */
  --shadow-sm:     0 1px 4px rgba(9,14,26,.06), 0 1px 2px rgba(9,14,26,.04);
  --shadow-md:     0 6px 24px rgba(9,14,26,.11);
  --shadow-lg:     0 16px 48px rgba(9,14,26,.16);
  --shadow-accent: 0 8px 28px rgba(79,70,229,.30);

  /* Transición */
  --transition: 0.22s cubic-bezier(.4,0,.2,1);

  /* Navbar */
  --navbar-h: 68px;
}


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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--navbar-h);
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: url('assets/bg.jpg') center / cover no-repeat;
  opacity: 0.4;
  z-index: -1;
  pointer-events: none;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol { list-style: none; }

h1, h2, h3, h4 {
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.015em;
}


/* ─────────────────────────────────────────────────────────────
   3. UTILIDADES
   ───────────────────────────────────────────────────────────── */

/* Contenedor centrado */
.container {
  width: min(1120px, 92vw);
  margin-inline: auto;
}

/* Título y subtítulo de sección */
.section {
  padding-block: var(--space-2xl);
  background: rgba(250, 251, 255, 0.82);
  -webkit-backdrop-filter: blur(14px) saturate(1.15);
  backdrop-filter: blur(14px) saturate(1.15);
}

.section__title {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  color: var(--clr-primary);
  margin-bottom: var(--space-sm);
  position: relative;
  display: inline-block;
  letter-spacing: -0.025em;
}

/* Línea decorativa bajo título — degradado */
.section__title::after {
  content: '';
  display: block;
  width: 40px;
  height: 3px;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-primary));
  border-radius: var(--radius-full);
  margin-top: 0.45rem;
}

.section__subtitle {
  color: var(--clr-text-muted);
  margin-top: var(--space-sm);
  margin-bottom: var(--space-xl);
  font-size: 1.05rem;
  font-weight: 500;
}

/* ── Botones ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.65rem 1.55rem;
  border-radius: var(--radius-full);
  font-size: 0.92rem;
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  letter-spacing: 0.01em;
  transition: background var(--transition), color var(--transition),
              border-color var(--transition), transform var(--transition),
              box-shadow var(--transition);
  white-space: nowrap;
}

.btn:active { transform: scale(0.97); }

.btn--primary {
  background: var(--clr-primary);
  color: #fff;
  border-color: var(--clr-primary);
}
.btn--primary:hover {
  background: var(--clr-primary-h);
  border-color: var(--clr-primary-h);
  box-shadow: 0 6px 20px rgba(11,29,53,.28);
}

.btn--outline {
  background: transparent;
  color: var(--clr-primary);
  border-color: var(--clr-primary);
}
.btn--outline:hover {
  background: var(--clr-primary);
  color: #fff;
}

.btn--ghost {
  background: transparent;
  color: var(--clr-primary);
  border-color: var(--clr-border);
}
.btn--ghost:hover {
  border-color: var(--clr-primary);
  background: var(--clr-primary-lt);
}

.btn--sm {
  padding: 0.4rem 1rem;
  font-size: 0.85rem;
}

.btn--lg {
  padding: 0.85rem 2rem;
  font-size: 1rem;
}

/* ── Tags / badges ── */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.tag {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  background: var(--clr-primary-lt);
  color: var(--clr-primary);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
}

.tag--accent {
  background: var(--clr-accent-lt);
  color: var(--clr-accent-h);
}

.tag--sm {
  padding: 0.2rem 0.6rem;
  font-size: 0.78rem;
}

/* Badges institucionales */
.inst-badge {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.inst-badge--utec {
  background: var(--clr-utec);
  color: #fff;
}

.inst-badge--mit {
  background: var(--clr-mit);
  color: #fff;
}


/* ─────────────────────────────────────────────────────────────
   4. NAVBAR
   ───────────────────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--navbar-h);
  background: #000000;
  border-bottom: 1px solid rgba(255,255,255,.08);
  transition: box-shadow var(--transition);
}

.navbar.scrolled {
  box-shadow: 0 4px 24px rgba(0,0,0,.35);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.navbar__brand {
  display: flex;
  align-items: center;
  font-size: 1.1rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: 0.1em;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  transition: opacity var(--transition);
}
.navbar__brand:hover { opacity: 0.8; }

.navbar__logo {
  height: 88px;
  width: auto;
  display: block;
  object-fit: contain;
}

.navbar__nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown > summary {
  list-style: none;
}

.nav-dropdown > summary::-webkit-details-marker {
  display: none;
}

.nav-dropdown__summary {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: rgba(255,255,255,.60);
  padding: 0.25rem 0.1rem;
  border-bottom: 2px solid transparent;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
}

.nav-dropdown__summary::after {
  content: '▾';
  font-size: 0.7em;
  line-height: 1;
  transition: transform var(--transition);
}

.nav-dropdown:hover > .nav-dropdown__summary,
.nav-dropdown:focus-within > .nav-dropdown__summary,
.nav-dropdown[open] > .nav-dropdown__summary,
.nav-dropdown.is-active > .nav-dropdown__summary {
  color: #ffffff;
  border-bottom-color: var(--clr-accent);
}

.nav-dropdown[open] > .nav-dropdown__summary::after,
.nav-dropdown.is-active > .nav-dropdown__summary::after {
  transform: rotate(180deg);
}

.nav-dropdown__menu {
  position: absolute;
  top: calc(100% + 0.75rem);
  left: 0;
  min-width: 16rem;
  padding: 0.7rem;
  display: grid;
  gap: 0.35rem;
  background: rgba(9, 14, 26, 0.98);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  z-index: 20;
}

.nav-dropdown:hover > .nav-dropdown__menu,
.nav-dropdown:focus-within > .nav-dropdown__menu,
.nav-dropdown[open] > .nav-dropdown__menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown__menu .nav-link {
  display: block;
  width: 100%;
  padding: 0.55rem 0.8rem;
  border-bottom: 0;
  border-radius: var(--radius-md);
  color: rgba(255,255,255,.72);
}

.nav-dropdown__menu .nav-link:hover,
.nav-dropdown__menu .nav-link.active {
  background: rgba(255,255,255,.06);
  color: #ffffff;
}

.navbar__admin-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.45rem 0.95rem;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: var(--radius-full);
  color: #ffffff;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  background: rgba(79,70,229,.18);
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}

.navbar__admin-link:hover {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  transform: translateY(-1px);
}

.nav-link {
  font-size: 0.88rem;
  font-weight: 500;
  color: rgba(255,255,255,.60);
  padding: 0.25rem 0.1rem;
  border-bottom: 2px solid transparent;
  letter-spacing: 0.02em;
  transition: color var(--transition), border-color var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: #ffffff;
  border-bottom-color: var(--clr-accent);
}

/* Hamburguesa (mobile) */
.navbar__toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 26px;
  height: 18px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.navbar__toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: #ffffff;
  border-radius: var(--radius-full);
  transition: transform var(--transition), opacity var(--transition);
}


/* ─────────────────────────────────────────────────────────────
   5. HERO
   ───────────────────────────────────────────────────────────── */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--navbar-h);
  background:
    radial-gradient(ellipse 55% 70% at 78% 40%, rgba(79,70,229,.10) 0%, transparent 65%),
    radial-gradient(ellipse 40% 50% at 20% 80%, rgba(79,70,229,.06) 0%, transparent 60%),
    rgba(250,251,255,0.72);
  border-bottom: 1px solid var(--clr-border);
}

.hero__content {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  padding-block: var(--space-2xl);
}

/* Foto de perfil */
.hero__photo-wrap {
  flex-shrink: 0;
  position: relative;
}

/* Scanlines overlay — líneas horizontales sutiles como CRT */
.hero__photo-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 3px,
    rgba(0, 0, 0, 0.055) 3px,
    rgba(0, 0, 0, 0.055) 4px
  );
  pointer-events: none;
  z-index: 1;
}

/* Glitch principal: la mayor parte del tiempo apaga, con golpes rápidos */
@keyframes tv-glitch {
  0%,  14.9%, 15.5%,
  38%, 38.8%, 39.4%,
  67%, 67.6%, 68.2%,
  89%, 89.5%, 100% {
    transform: none;
    filter: none;
    opacity: 1;
  }
  /* Jitter 1 — RGB split rojo/cian */
  15%   { transform: translateX(3px) skewX(0.6deg);
          filter: drop-shadow(5px 0 0 rgba(255,0,60,.75))
                  drop-shadow(-5px 0 0 rgba(0,230,255,.75))
                  brightness(1.08);
          opacity: .93; }
  15.2% { transform: translateX(-4px) skewX(-0.4deg);
          filter: drop-shadow(-4px 0 0 rgba(255,0,60,.6))
                  drop-shadow(4px 0 0 rgba(0,230,255,.6))
                  brightness(.96);
          opacity: .97; }
  15.4% { transform: translateX(2px);
          filter: drop-shadow(2px 0 0 rgba(255,0,60,.4))
                  drop-shadow(-2px 0 0 rgba(0,230,255,.4)); }

  /* Jitter 2 — split verde/magenta */
  38.2% { transform: translateX(-3px) skewX(0.9deg);
          filter: drop-shadow(6px 0 0 rgba(255,0,180,.7))
                  drop-shadow(-6px 0 0 rgba(0,255,120,.7))
                  saturate(1.8) brightness(1.1);
          opacity: .91; }
  38.6% { transform: translateX(5px) skewX(-0.5deg);
          filter: drop-shadow(-5px 0 0 rgba(255,0,180,.55))
                  drop-shadow(5px 0 0 rgba(0,255,120,.55))
                  contrast(1.15);
          opacity: .96; }

  /* Jitter 3 — split rojo/cian suave + flicker */
  67.2% { transform: translateX(2px);
          filter: drop-shadow(4px 0 0 rgba(255,40,0,.65))
                  drop-shadow(-4px 0 0 rgba(0,200,255,.65))
                  brightness(.82) contrast(1.2);
          opacity: .88; }
  67.4% { transform: translateX(-2px);
          filter: drop-shadow(-3px 0 0 rgba(255,40,0,.5))
                  drop-shadow(3px 0 0 rgba(0,200,255,.5))
                  brightness(1.1); }

  /* Jitter 4 — corte seco con franja azul/naranja */
  89.2% { transform: translateX(-5px) skewX(1deg);
          filter: drop-shadow(7px 0 0 rgba(255,90,0,.7))
                  drop-shadow(-7px 0 0 rgba(0,120,255,.7))
                  saturate(1.6);
          opacity: .9; }
  89.3% { transform: none;
          filter: drop-shadow(2px 0 0 rgba(255,90,0,.3))
                  drop-shadow(-2px 0 0 rgba(0,120,255,.3))
                  brightness(.9); }
}

.hero__photo {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid #fff;
  box-shadow: 0 0 0 3px var(--clr-accent), var(--shadow-lg);
  animation: tv-glitch 9s steps(1) infinite;
}

.hero__photo--fallback {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: var(--clr-bg-alt);
  border: 4px solid #fff;
  box-shadow: 0 0 0 3px var(--clr-accent), var(--shadow-lg);
  animation: tv-glitch 9s steps(1) infinite;
  display: none;        /* se activa via JS cuando no carga la imagen */
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__photo--fallback svg {
  width: 70%;
  height: 70%;
  margin-top: 20px;
}

/* Badge académico en hero */
.hero__academic-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background: var(--clr-accent-lt);
  color: var(--clr-accent-h);
  border: 1px solid rgba(91,79,245,.25);
  border-radius: var(--radius-full);
  padding: 0.42rem 1.1rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  margin-bottom: var(--space-md);
  box-shadow: 0 2px 8px rgba(91,79,245,.12);
}

.badge-icon { font-size: 1em; }

/* Nombre */
.hero__name {
  font-size: clamp(2.2rem, 5.5vw, 3.6rem);
  color: var(--clr-primary);
  letter-spacing: -0.035em;
  font-weight: 800;
  margin-bottom: var(--space-xs);
}

/* Subtítulo */
.hero__title {
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  color: var(--clr-accent);
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-md);
  text-transform: uppercase;
}

/* Descripción */
.hero__desc {
  font-size: 1.05rem;
  color: var(--clr-text-muted);
  max-width: 520px;
  margin-bottom: var(--space-sm);
}

/* Ubicación */
.hero__location {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--clr-text-light);
  font-size: 0.9rem;
  margin-bottom: var(--space-lg);
}

/* Botones del hero */
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}


/* ─────────────────────────────────────────────────────────────
   6. SOBRE MÍ
   ───────────────────────────────────────────────────────────── */
.about {
  background: var(--clr-bg-alt);
  border-top: none;
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--space-xl);
  align-items: start;
  margin-top: var(--space-xl);
}

.about__body p {
  color: var(--clr-text);
  margin-bottom: var(--space-md);
  font-size: 1.02rem;
  line-height: 1.8;
}

/* Tarjeta académica */
.academic-card {
  background: linear-gradient(160deg, var(--clr-accent-lt) 0%, var(--clr-surface) 55%);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  text-align: center;
  border-top: 3px solid var(--clr-accent);
}

.academic-card__icon {
  font-size: 2.2rem;
  margin-bottom: var(--space-sm);
}

.academic-card__title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--clr-text-muted);
  margin-bottom: var(--space-sm);
  font-weight: 600;
}

.academic-card__prog {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--clr-primary);
  margin-bottom: var(--space-md);
  line-height: 1.4;
}

.academic-card__inst {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.academic-card__sub {
  font-size: 0.8rem;
  color: var(--clr-text-muted);
  line-height: 1.5;
}


/* ─────────────────────────────────────────────────────────────
   7. SKILLS
   ───────────────────────────────────────────────────────────── */
.skills__groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.skills__group {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-top: 3px solid transparent;
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition), border-top-color var(--transition);
}

.skills__group:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-top-color: var(--clr-accent);
}

.skills__group-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--clr-text-muted);
  margin-bottom: var(--space-md);
  font-weight: 600;
}


/* ─────────────────────────────────────────────────────────────
   8. IDIOMAS
   ───────────────────────────────────────────────────────────── */
.languages {
  background: var(--clr-bg);
}

.languages__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-xl);
  max-width: 720px;
  margin-inline: auto;
}

.lang-card {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-xl);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

.lang-card:hover {
  box-shadow: var(--shadow-accent);
  transform: translateY(-4px);
  border-color: var(--clr-accent);
}

.lang-card__flag {
  font-size: 2.4rem;
  line-height: 1;
  flex-shrink: 0;
}

.lang-card__info {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  flex: 1;
}

.lang-card__top {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.lang-card__name {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--clr-primary);
  margin: 0;
}

.lang-card__badge {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  background: var(--clr-accent-lt);
  color: var(--clr-accent);
  border-radius: var(--radius-full);
  padding: 2px 10px;
}

.lang-card__badge--native {
  background: #e6f9f0;
  color: #1a7a4a;
}

.lang-card__level {
  font-size: 0.82rem;
  color: var(--clr-text-muted);
  margin: 0;
}

.lang-card__dots {
  display: flex;
  gap: 6px;
  margin-top: 4px;
}

.lang-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--clr-border);
}

.lang-dot--on {
  background: var(--clr-accent);
}

/* ─────────────────────────────────────────────────────────────
   9. PROYECTOS
   ───────────────────────────────────────────────────────────── */
.projects {
  background: var(--clr-bg-alt);
}

.projects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.project-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-top: 3px solid transparent;
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition), border-top-color var(--transition);
}

.project-card__cover {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.project-card:hover .project-card__cover {
  transform: scale(1.03);
}

.project-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
  border-top-color: var(--clr-accent);
}

.project-card__body {
  padding: var(--space-lg);
  flex: 1;
}

.project-card__title {
  font-size: 1.05rem;
  color: var(--clr-primary);
  margin-bottom: var(--space-sm);
}

.project-card__desc {
  font-size: 0.92rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.project-card__footer {
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--clr-border);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  background: #f8f9fd;
}

/* ── Category badges ── */
.project-card__category {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-sm);
}

.project-card__category--data-science {
  background: var(--clr-accent-lt);
  color: var(--clr-accent);
}

.project-card__category--web {
  background: #ccfbf1;
  color: #0d9488;
}

.project-card__category--software {
  background: #ffedd5;
  color: #ea580c;
}

/* Category-specific hover border-top colors */
.project-card[data-category="web"]:hover     { border-top-color: #0d9488; }
.project-card[data-category="software"]:hover { border-top-color: #ea580c; }

/* ── Project filter bar ── */
.projects__filters {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-top: var(--space-lg);
}

.filter-btn {
  padding: 0.45rem 1.1rem;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--clr-border);
  background: var(--clr-surface);
  color: var(--clr-text-muted);
  font: 500 0.88rem/1 var(--font-body);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.filter-btn:hover {
  background: var(--clr-primary-lt);
  border-color: var(--clr-primary);
  color: var(--clr-primary);
}

.filter-btn--active,
.filter-btn[data-filter="all"].filter-btn--active {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  color: #fff;
}

.filter-btn[data-filter="web"].filter-btn--active {
  background: #0d9488;
  border-color: #0d9488;
  color: #fff;
}

.filter-btn[data-filter="software"].filter-btn--active {
  background: #ea580c;
  border-color: #ea580c;
  color: #fff;
}

/* ── Project card: hidden state (filter) ── */
.project-card[hidden] {
  display: none;
}


/* ─────────────────────────────────────────────────────────────
   9b. ARTÍCULOS DE INTERÉS
   ───────────────────────────────────────────────────────────── */
.articles {
  background: var(--clr-bg);
}

.articles__filters {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-top: var(--space-lg);
}

.articles__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

/* ── Article card ── */
.article-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-top: 3px solid transparent;
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition), border-top-color var(--transition);
}

.article-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-top-color: var(--clr-accent);
}

.article-card[data-category="netsuite"]:hover { border-top-color: #0d9488; }
.article-card[data-category="ia"]:hover        { border-top-color: #d97706; }

.article-card__cover {
  width: 100%;
  height: 160px;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.article-card:hover .article-card__cover {
  transform: scale(1.03);
}

/* Thin color bar when no cover image */
.article-card__cover-stripe {
  height: 4px;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-primary));
}

.article-card__cover-stripe--netsuite { background: linear-gradient(90deg, #0d9488, #064e3b); }
.article-card__cover-stripe--ia        { background: linear-gradient(90deg, #d97706, #92400e); }
.article-card__cover-stripe--general   { background: linear-gradient(90deg, var(--clr-primary), var(--clr-primary-h)); }

.article-card__body {
  padding: var(--space-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.article-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-sm);
}

/* Category badge — reusing project-card__category sizes, new colors */
.article-card__category {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
}

.article-card__category--data-science {
  background: var(--clr-accent-lt);
  color: var(--clr-accent);
}

.article-card__category--netsuite {
  background: #ccfbf1;
  color: #0d9488;
}

.article-card__category--ia {
  background: #fef3c7;
  color: #b45309;
}

.article-card__category--general {
  background: var(--clr-primary-lt);
  color: var(--clr-primary);
}

.article-card__date {
  font-size: 0.8rem;
  color: var(--clr-text-light);
  font-weight: 500;
  white-space: nowrap;
}

.article-card__title {
  font-size: 1rem;
  color: var(--clr-primary);
  line-height: 1.35;
  margin-bottom: var(--space-sm);
}

.article-card__summary {
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
  flex: 1;
  margin-bottom: var(--space-md);
}

.article-card__reading-time {
  font-size: 0.78rem;
  color: var(--clr-text-light);
  margin-bottom: var(--space-sm);
}

.article-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--clr-border);
  margin-top: auto;
}

/* ─────────────────────────────────────────────────────────────
   ARTICLE DETAIL PAGE  (article.html + js/article.js)
   ───────────────────────────────────────────────────────────── */

/* ── Helpers de accesibilidad ── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-md);
  z-index: 200;
  padding: 0.7rem 1.2rem;
  background: var(--clr-accent);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  text-decoration: none;
  transition: top var(--transition);
}
.skip-link:focus {
  top: 0;
}

#article-main:focus {
  outline: none;
}

#article-main a:focus-visible,
#article-main button:focus-visible,
.skip-link:focus-visible {
  outline: 3px solid var(--clr-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ── Barra de progreso de lectura ── */
.reading-progress {
  position: fixed;
  top: var(--navbar-h);
  left: 0;
  right: 0;
  height: 3px;
  z-index: 90;
  background: transparent;
  pointer-events: none;
}

.reading-progress__bar {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-accent-h));
  transform: scaleX(0);
  transform-origin: 0 50%;
  will-change: transform;
}

body:not(.article-ready) .reading-progress {
  display: none;
}

/* ── Cabecera del artículo ── */
.article-detail {
  padding-bottom: var(--space-2xl);
}

.article-detail__breadcrumb {
  padding: calc(var(--navbar-h) + var(--space-lg)) 0 var(--space-md);
  font-size: 0.85rem;
}

.article-detail__breadcrumb a {
  color: var(--clr-accent);
  text-decoration: none;
  font-weight: 600;
  padding: 0.35rem 0;
  display: inline-block;
}
.article-detail__breadcrumb a:hover { text-decoration: underline; }

.article-detail__container {
  width: min(1120px, 92vw);
  margin-inline: auto;
}

.article-detail__header,
.article-detail__body {
  max-width: 720px;
  margin-inline: auto;
}

.article-detail__eyebrow {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.article-detail__reading {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--clr-text-light);
}

.article-detail__title {
  font-size: clamp(1.75rem, 4.5vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--clr-text);
  margin: 0 0 var(--space-md);
  text-wrap: balance;
}

.article-detail__standfirst {
  font-size: clamp(1.02rem, 2vw, 1.15rem);
  line-height: 1.65;
  color: var(--clr-text-muted);
  margin: 0 0 var(--space-md);
}

.article-detail__byline {
  font-size: 0.86rem;
  color: var(--clr-text-light);
  margin: 0;
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--clr-border);
}

.article-detail__author {
  font-weight: 600;
  color: var(--clr-text-muted);
}

/* ── Imagen de portada ── */
.article-detail__cover {
  width: min(1120px, 92vw);
  margin: var(--space-lg) auto 0;
}

.article-detail__cover-img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: 1px solid var(--clr-border);
  background: var(--clr-bg-alt);
}

/* ── Cuerpo ── */
.article-detail__body {
  padding-top: var(--space-xl);
}

.article-detail__section {
  margin-bottom: var(--space-xl);
}

.article-detail__section-title {
  font-size: clamp(1.15rem, 2.4vw, 1.4rem);
  font-weight: 700;
  color: var(--clr-primary);
  margin: 0 0 var(--space-md);
  padding-bottom: var(--space-xs);
  border-bottom: 2px solid var(--clr-accent);
  display: inline-block;
}

/* Tipografía del contenido enriquecido (HTML saneado) */
.article-detail__prose {
  font-size: 1.02rem;
  line-height: 1.8;
  color: var(--clr-text-muted);
  overflow-wrap: break-word;
}

.article-detail__prose > *:first-child { margin-top: 0; }
.article-detail__prose > *:last-child  { margin-bottom: 0; }

.article-detail__prose p {
  margin: 0 0 var(--space-md);
}

.article-detail__prose h3,
.article-detail__prose h4,
.article-detail__prose h5,
.article-detail__prose h6 {
  color: var(--clr-text);
  line-height: 1.3;
  margin: var(--space-lg) 0 var(--space-sm);
}
.article-detail__prose h3 { font-size: 1.15rem; }
.article-detail__prose h4 { font-size: 1.02rem; }
.article-detail__prose h5,
.article-detail__prose h6 { font-size: 0.95rem; }

.article-detail__prose ul,
.article-detail__prose ol {
  padding-left: 1.4rem;
  margin: 0 0 var(--space-md);
}

.article-detail__prose li {
  margin-bottom: 0.45rem;
}

.article-detail__prose a {
  color: var(--clr-accent);
  text-decoration: underline;
  text-underline-offset: 0.18em;
  text-decoration-thickness: 1px;
}
.article-detail__prose a:hover {
  color: var(--clr-accent-h);
  text-decoration-thickness: 2px;
}

.article-detail__prose blockquote {
  margin: var(--space-lg) 0;
  padding: var(--space-sm) var(--space-md);
  border-left: 3px solid var(--clr-accent);
  background: var(--clr-accent-lt);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--clr-text-muted);
  font-style: italic;
}

.article-detail__prose code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--clr-primary-lt);
  color: var(--clr-text);
  padding: 0.15em 0.4em;
  border-radius: var(--radius-sm);
}

.article-detail__prose pre {
  margin: var(--space-lg) 0;
  padding: var(--space-md);
  background: var(--clr-primary);
  color: #e6ecfa;
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-size: 0.86rem;
  line-height: 1.6;
}
.article-detail__prose pre code {
  background: none;
  color: inherit;
  padding: 0;
  font-size: inherit;
}

.article-detail__prose img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--clr-border);
}

.article-detail__prose table {
  display: block;
  width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  margin: var(--space-lg) 0;
  font-size: 0.92rem;
}

.article-detail__prose th,
.article-detail__prose td {
  border: 1px solid var(--clr-border);
  padding: 0.55rem 0.75rem;
  text-align: left;
}

.article-detail__prose th {
  background: var(--clr-bg-alt);
  font-weight: 700;
  color: var(--clr-text);
}

.article-detail__prose hr {
  border: none;
  border-top: 1px solid var(--clr-border);
  margin: var(--space-lg) 0;
}

/* ── Figuras dentro del artículo ── */
.article-detail__figure {
  margin: var(--space-lg) 0;
}

.article-detail__figure-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--clr-border);
  background: var(--clr-bg-alt);
}

.article-detail__figure-caption {
  font-size: 0.82rem;
  color: var(--clr-text-light);
  text-align: center;
  margin-top: var(--space-xs);
  font-style: italic;
}

/* ── Pie del artículo: CTA + etiquetas ── */
.article-detail__footer {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--clr-border);
}

.article-detail__cta {
  margin-bottom: var(--space-lg);
}

.article-detail__cta .btn {
  justify-content: center;
}

.article-detail__tags {
  margin-top: var(--space-lg);
}

.tags--list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

/* ── Estados: no encontrado / error ── */
.article-state {
  padding: calc(var(--navbar-h) + var(--space-2xl)) 0 var(--space-2xl);
}

.article-state__inner {
  max-width: 460px;
  text-align: center;
}

.article-state__icon {
  font-size: 2.6rem;
  margin: 0 0 var(--space-sm);
}

.article-state__title {
  font-size: 1.4rem;
  color: var(--clr-text);
  margin: 0 0 var(--space-xs);
}

.article-state__text {
  color: var(--clr-text-light);
  font-size: 0.95rem;
  margin: 0 0 var(--space-lg);
}

.article-state__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
}

/* ── Skeleton de carga ── */
.article-skeleton {
  padding: calc(var(--navbar-h) + var(--space-xl)) 0 var(--space-2xl);
}

.article-skeleton__inner {
  max-width: 720px;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.skeleton {
  display: block;
  border-radius: var(--radius-sm);
  background: linear-gradient(90deg,
    var(--clr-bg-alt) 25%, #e7ebf6 37%, var(--clr-bg-alt) 63%);
  background-size: 400% 100%;
  animation: skeleton-shimmer 1.4s ease infinite;
}

.skeleton--chip        { width: 120px; height: 24px; border-radius: var(--radius-full); }
.skeleton--title       { width: 100%;  height: 34px; margin-top: var(--space-xs); }
.skeleton--title-short { width: 65%; }
.skeleton--meta        { width: 220px; height: 16px; margin-bottom: var(--space-md); }
.skeleton--cover       { width: 100%;  aspect-ratio: 16 / 9; height: auto; border-radius: var(--radius-md); margin-bottom: var(--space-md); }
.skeleton--line        { width: 100%;  height: 14px; }
.skeleton--line-short  { width: 45%; }

@keyframes skeleton-shimmer {
  0%   { background-position: 100% 50%; }
  100% { background-position: 0 50%; }
}

@media (prefers-reduced-motion: reduce) {
  .skeleton { animation: none; }
  .skip-link { transition: none; }
}

/* ── Responsive ── */
@media (max-width: 680px) {
  .article-detail__breadcrumb {
    padding-top: calc(var(--navbar-h) + var(--space-md));
  }

  .article-detail__cover-img,
  .skeleton--cover {
    aspect-ratio: 3 / 2;
  }

  .article-detail__body {
    padding-top: var(--space-lg);
  }

  .article-detail__prose {
    font-size: 1rem;
  }

  .article-detail__cta .btn {
    display: flex;
    width: 100%;
  }
}

/* ── Impresión ── */
@media print {
  .navbar,
  .reading-progress,
  .article-detail__breadcrumb,
  .skip-link,
  .article-detail__cta,
  .footer {
    display: none !important;
  }

  .article-detail__cover-img,
  .article-detail__figure-img {
    max-height: 8cm;
    object-fit: contain;
  }
}

/* ── Empty state ── */

.articles__empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-xl);
  color: var(--clr-text-light);
  font-size: 0.95rem;
}


/* ─────────────────────────────────────────────────────────────
   9. EXPERIENCIA — TIMELINE
   ───────────────────────────────────────────────────────────── */
.timeline {
  margin-top: var(--space-xl);
  position: relative;
  padding-left: 2rem;
}

/* Línea vertical */
.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--clr-border);
}

.timeline__item {
  position: relative;
  padding-bottom: var(--space-xl);
}

.timeline__item:last-child {
  padding-bottom: 0;
}

/* Punto de la línea */
.timeline__marker {
  position: absolute;
  left: calc(-2rem + 4px);
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--clr-accent);
  border: 3px solid var(--clr-surface);
  box-shadow: 0 0 0 2px var(--clr-accent);
}

.timeline__content {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-left: 3px solid var(--clr-accent);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}

.timeline__item:hover .timeline__content {
  box-shadow: var(--shadow-md);
  transform: translateX(3px);
}

.timeline__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-xs);
}

.timeline__role {
  font-size: 1rem;
  color: var(--clr-primary);
}

.timeline__period {
  font-size: 0.82rem;
  color: var(--clr-text-light);
  font-weight: 500;
  white-space: nowrap;
}

.timeline__company {
  font-size: 0.88rem;
  color: var(--clr-accent);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.timeline__desc {
  font-size: 0.92rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
}


/* ─────────────────────────────────────────────────────────────
   10. EDUCACIÓN
   ───────────────────────────────────────────────────────────── */
.education {
  background: var(--clr-bg-alt);
}

.education__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.edu-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}

.edu-card--link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.edu-card--link:hover,
.edu-card--link:focus-visible {
  text-decoration: none;
}

.edu-card--link:focus-visible {
  outline: 2px solid var(--clr-accent);
  outline-offset: 3px;
}

.edu-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

/* Tarjeta destacada UTEC + MIT — ocupa 2 columnas */
.edu-card--featured {
  border-top: 3px solid var(--clr-accent);
  grid-column: span 2;
  background: linear-gradient(150deg, var(--clr-accent-lt) 0%, var(--clr-surface) 60%);
}

.edu-card--placeholder {
  border-style: dashed;
  opacity: 0.65;
}

.edu-card__badge-row {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.edu-card__title {
  font-size: 1rem;
  color: var(--clr-primary);
  margin-bottom: var(--space-xs);
}

.edu-card__inst {
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  margin-bottom: var(--space-xs);
}

.edu-card__detail {
  font-size: 0.85rem;
  color: var(--clr-accent);
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

.edu-card__period {
  font-size: 0.8rem;
  color: var(--clr-text-light);
  font-weight: 600;
  margin-top: var(--space-sm);
}


/* ─────────────────────────────────────────────────────────────
   11. RECOMENDACIONES
   ───────────────────────────────────────────────────────────── */
.section-divider {
  border: none;
  height: 2px;
  background: linear-gradient(to right, transparent, var(--clr-accent), transparent);
  margin: 0;
  opacity: 0.35;
}

.testimonials {
  background: var(--clr-bg);
}

.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.testimonial-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  gap: var(--space-lg);
}

.testimonial-card:hover {
  box-shadow: var(--shadow-accent);
  transform: translateY(-4px);
  border-color: var(--clr-accent);
}

.testimonial-card--placeholder {
  opacity: 0.45;
  pointer-events: none;
}

.testimonial-card__quote {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.testimonial-card__icon {
  color: var(--clr-accent);
  flex-shrink: 0;
  opacity: 0.7;
}

.testimonial-card__text {
  font-size: 0.93rem;
  line-height: 1.7;
  color: var(--clr-text);
  font-style: italic;
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  border-top: 1px solid var(--clr-border);
  padding-top: var(--space-md);
}

.testimonial-card__avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--clr-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
  letter-spacing: 0.03em;
}

.testimonial-card__name {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--clr-primary);
  margin: 0;
}

.testimonial-card__role {
  font-size: 0.78rem;
  color: var(--clr-text-muted);
  margin: 0;
  margin-top: 2px;
}

.testimonial-card__email {
  display: inline-block;
  font-size: 0.68rem;
  color: var(--clr-text-muted);
  text-decoration: none;
  margin-top: 3px;
  letter-spacing: 0.01em;
  transition: color 0.2s;
}

.testimonial-card__email-label {
  font-weight: 600;
  color: var(--clr-text-muted);
  margin-right: 2px;
}

.testimonial-card__email:hover {
  color: var(--clr-accent);
  text-decoration: underline;
}

/* ─────────────────────────────────────────────────────────────
   BEYOND WORK
   ───────────────────────────────────────────────────────────── */
.beyond {
  background-color: rgba(255, 255, 255, 0.6);
}

.beyond__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.beyond-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: 14px;
  padding: 1.75rem 1.5rem;
  transition: box-shadow 0.2s, transform 0.2s;
}

.beyond-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.beyond-card__icon {
  font-size: 2rem;
  line-height: 1;
  margin-bottom: 0.75rem;
}

.beyond-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-text);
  margin: 0 0 0.5rem;
}

.beyond-card__body {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
  margin: 0 0 0.75rem;
}

.beyond-card__link {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--clr-accent);
  text-decoration: none;
  transition: opacity 0.2s;
}

.beyond-card__link:hover {
  opacity: 0.75;
  text-decoration: underline;
}

/* ─────────────────────────────────────────────────────────────
   ACCESO ADMIN — home login section
   ───────────────────────────────────────────────────────────── */
.admin-access {
  background:
    linear-gradient(135deg, rgba(238, 237, 251, 0.92) 0%, rgba(242, 244, 250, 0.88) 100%);
}

.admin-access__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 420px);
  gap: var(--space-xl);
  align-items: start;
}

.admin-access__content {
  min-width: 0;
}

.admin-access__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.8rem;
  margin-bottom: var(--space-md);
  border-radius: var(--radius-full);
  background: rgba(79, 70, 229, 0.12);
  color: var(--clr-accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.admin-access__checks {
  display: grid;
  gap: 0.9rem;
  margin-top: var(--space-lg);
}

.admin-access__check {
  position: relative;
  padding-left: 1.75rem;
  color: var(--clr-text-muted);
  font-size: 0.96rem;
  line-height: 1.65;
}

.admin-access__check::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  width: 1.2rem;
  height: 1.2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(79,70,229,.12);
  color: var(--clr-accent);
  font-size: 0.78rem;
  font-weight: 800;
}

.admin-access__status {
  margin-top: var(--space-lg);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  line-height: 1.55;
  border: 1px solid rgba(79,70,229,.16);
  background: rgba(79,70,229,.08);
  color: var(--clr-primary);
}

.admin-access__status--ok {
  background: rgba(16,185,129,.10);
  border-color: rgba(16,185,129,.24);
  color: #047857;
}

.admin-access__card {
  background: rgba(255,255,255,.88);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-md);
}

.admin-access__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.admin-access__card .form-label {
  color: var(--clr-text-light);
}

.admin-access__card .form-input {
  background: #fff;
}

.admin-access__alt-link {
  margin: 0;
  text-align: center;
  font-size: 0.85rem;
}

.admin-access__alt-link a {
  color: var(--clr-accent);
  font-weight: 600;
}

.admin-access__alt-link a:hover {
  text-decoration: underline;
}

.admin-access__panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.admin-access__panel-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--clr-primary);
}

.admin-access__panel-copy {
  font-size: 0.92rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
}

.admin-access__panel-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ─────────────────────────────────────────────────────────────
   WIP POPUP
   ───────────────────────────────────────────────────────────── */
.wip-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 15, 30, 0.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 1rem;
  opacity: 1;
  transition: opacity 0.3s ease;
}

.wip-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.wip-popup {
  background: var(--clr-surface);
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.18);
  padding: 2.5rem 2rem;
  max-width: 420px;
  width: 100%;
  text-align: center;
  border-top: 4px solid var(--clr-accent);
}

.wip-popup__icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  line-height: 1;
}

.wip-popup__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--clr-text);
  margin: 0 0 0.75rem;
}

.wip-popup__body {
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
  margin: 0 0 1.5rem;
}

.wip-popup__btn {
  display: inline-block;
  background: var(--clr-accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 0.65rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.wip-popup__btn:hover {
  background: var(--clr-accent-h);
}

/* ─────────────────────────────────────────────────────────────
   12. CONTACTO
   ───────────────────────────────────────────────────────────── */
.contact {
  text-align: center;
}

.contact .section__title::after {
  margin-inline: auto;
}

.contact__grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-xl);
  min-width: 200px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  color: var(--clr-text);
}

.contact-card:hover {
  box-shadow: var(--shadow-accent);
  transform: translateY(-5px);
  border-color: var(--clr-accent);
}

.contact-card__icon {
  color: var(--clr-accent);
  margin-bottom: var(--space-xs);
}

.contact-card__label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--clr-text-muted);
  font-weight: 600;
}

.contact-card__value {
  font-size: 0.88rem;
  color: var(--clr-primary);
  font-weight: 500;
}

.contact__cta {
  margin-top: var(--space-lg);
}


/* ─────────────────────────────────────────────────────────────
   12. FOOTER
   ───────────────────────────────────────────────────────────── */
.footer {
  background: #090e1a;
  color: rgba(255, 255, 255, 0.45);
  padding-block: calc(var(--space-lg) * 1.5);
  text-align: center;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  border-top: 1px solid rgba(255,255,255,.06);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  align-items: center;
}

.footer__tagline {
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

/* ─────────────────────────────────────────────────────────────
   LANG TOGGLE BUTTON
   ───────────────────────────────────────────────────────────── */
.lang-toggle {
  flex-shrink: 0;
  margin-left: var(--space-md);
  padding: 0.28rem 0.75rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  border: 1.5px solid rgba(255,255,255,.30);
  border-radius: var(--radius-full);
  background: transparent;
  color: rgba(255,255,255,.75);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.lang-toggle:hover {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  color: #ffffff;
}

/* ─────────────────────────────────────────────────────────────
   PROJECT DETAIL PAGE  (project.html)
   ───────────────────────────────────────────────────────────── */
.project-detail {
  padding-top: var(--navbar-h);
}

.project-detail__breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--clr-text-light);
  padding: var(--space-md) 0;
  flex-wrap: wrap;
}

.project-detail__breadcrumb a {
  color: var(--clr-accent);
  text-decoration: none;
}
.project-detail__breadcrumb a:hover { text-decoration: underline; }

.project-detail__hero {
  position: relative;
  min-height: 240px;
  background: var(--clr-primary);
  overflow: hidden;
}

.project-detail__cover {
  width: 100%;
  height: 380px;
  object-fit: cover;
  display: block;
  opacity: 0.35;
}

.project-detail__cover--placeholder {
  height: 220px;
  background: linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-accent) 100%);
  opacity: 1;
}

.project-detail__hero-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-xl) 0 var(--space-lg);
  background: linear-gradient(to top, rgba(9,14,26,.88) 55%, transparent);
}

.project-detail__title {
  font-size: clamp(1.3rem, 3vw, 2rem);
  color: #fff;
  margin-bottom: 0.5rem;
  line-height: 1.25;
}

.project-detail__subtitle {
  font-size: 0.92rem;
  color: rgba(255,255,255,.65);
  margin-top: 0.25rem;
}

.project-detail__body {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: var(--space-xl);
  padding: var(--space-xl) 0;
}

.project-detail__main {
  min-width: 0;
  background: rgba(250, 251, 255, 0.88);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  backdrop-filter: blur(18px) saturate(1.2);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.project-detail__desc {
  font-size: 1.02rem;
  line-height: 1.8;
  color: var(--clr-text-muted);
  margin-bottom: var(--space-xl);
}

.project-detail__section {
  margin-bottom: var(--space-xl);
}

.project-detail__section-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-primary);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-xs);
  border-bottom: 2px solid var(--clr-accent);
  display: inline-block;
}

.project-detail__section-body {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--clr-text-muted);
}

.project-detail__section-body ul {
  padding-left: 1.4rem;
}

.project-detail__section-body li {
  margin-bottom: 0.4rem;
}

/* Sidebar */
.project-detail__meta-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  position: sticky;
  top: calc(var(--navbar-h) + var(--space-md));
  box-shadow: var(--shadow-sm);
}

.project-detail__meta-row {
  display: flex;
  flex-direction: column;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--clr-border);
}

.project-detail__meta-row:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.project-detail__meta-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--clr-text-light);
  margin-bottom: 0.4rem;
}

.project-detail__meta-value {
  font-size: 0.95rem;
  color: var(--clr-text);
  font-weight: 600;
}

.project-detail__meta-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-top: var(--space-md);
}

.project-detail__meta-links .btn {
  width: 100%;
  text-align: center;
  justify-content: center;
}

.project-detail__back {
  padding-bottom: var(--space-2xl);
}

.project-loading-wrap {
  padding-top: calc(var(--navbar-h) + 4rem);
  padding-bottom: 4rem;
  text-align: center;
}

.project-loading-text {
  color: var(--clr-text-muted);
  font-size: 1rem;
}

/* ─────────────────────────────────────────────────────────────
   PROJECT DETAIL — Figure (image + caption in free sections)
   ───────────────────────────────────────────────────────────── */
.project-detail__figure {
  margin: var(--space-lg) 0;
}

.project-detail__figure-img {
  width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--clr-border);
  display: block;
}

.project-detail__figure-caption {
  font-size: 0.82rem;
  color: var(--clr-text-light);
  text-align: center;
  margin-top: var(--space-xs);
  font-style: italic;
}


/* ─────────────────────────────────────────────────────────────
   ADMIN PAGE  (admin.html)
   ───────────────────────────────────────────────────────────── */
.admin-page {
  min-height: 100vh;
  background: var(--clr-bg-alt);
  padding-top: var(--navbar-h);
}

.admin-header {
  background: var(--clr-primary);
  color: #fff;
  padding: var(--space-lg) 0;
}

.admin-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.admin-header h1 {
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
}

.admin-header__sub {
  font-size: 0.85rem;
  color: rgba(255,255,255,.55);
  margin-top: 0.2rem;
}

/* Mode tab bar */
.admin-form-hidden { display: none; }

.admin-mode-tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid rgba(255,255,255,.15);
  margin-top: var(--space-md);
}

.admin-mode-tab {
  padding: 0.55rem 1.4rem;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 600;
  color: rgba(255,255,255,.50);
  transition: color var(--transition), border-color var(--transition);
  letter-spacing: 0.01em;
}

.admin-mode-tab:hover {
  color: rgba(255,255,255,.85);
}

.admin-mode-tab--active {
  color: #fff;
  border-bottom-color: var(--clr-accent);
}

.admin-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: var(--space-xl);
  padding: var(--space-xl) 0 var(--space-2xl);
  align-items: start;
}

/* ── Form panels ── */
.admin-panel {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  box-shadow: var(--shadow-sm);
}

.admin-panel__title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--clr-primary);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--clr-accent);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* ── Form fields ── */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: var(--space-md);
}

.form-group:last-child { margin-bottom: 0; }

.form-label {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--clr-text-light);
}

.form-label span {
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  color: var(--clr-text-light);
  font-size: 0.75rem;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.55rem 0.85rem;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-sm);
  font: 0.92rem/1.5 var(--font-body);
  color: var(--clr-text);
  background: var(--clr-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px rgba(79,70,229,.12);
}

.form-textarea {
  resize: vertical;
  min-height: 90px;
  line-height: 1.6;
}

/* ── Tags input ── */
.tags-input-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  padding: 0.45rem 0.6rem;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-sm);
  background: var(--clr-bg);
  cursor: text;
  transition: border-color var(--transition), box-shadow var(--transition);
  min-height: 42px;
  align-items: center;
}

.tags-input-wrap:focus-within {
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px rgba(79,70,229,.12);
}

.tags-input-wrap .tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.tags-input-wrap .tag__remove {
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
  padding: 0;
  font-size: 0.85rem;
  line-height: 1;
  opacity: 0.7;
}
.tags-input-wrap .tag__remove:hover { opacity: 1; }

.tags-real-input {
  border: none;
  outline: none;
  font: 0.88rem/1.5 var(--font-body);
  background: transparent;
  color: var(--clr-text);
  min-width: 120px;
  flex: 1;
}

/* ── Sections builder ── */
.sections-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.section-item {
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.section-item__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--clr-bg-alt);
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  user-select: none;
}

.section-item__header:hover { background: var(--clr-primary-lt); }

.section-item__drag {
  color: var(--clr-text-light);
  cursor: grab;
  font-size: 1rem;
}

.section-item__title-preview {
  flex: 1;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--clr-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.section-item__toggle {
  font-size: 0.75rem;
  color: var(--clr-text-light);
  transition: transform var(--transition);
}

.section-item.open .section-item__toggle {
  transform: rotate(180deg);
}

.section-item__body {
  padding: var(--space-md);
  border-top: 1px solid var(--clr-border);
  display: none;
}

.section-item.open .section-item__body { display: block; }

/* ── Blocks inside a section ── */
.blocks-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.block-item {
  border: 1px dashed var(--clr-border);
  border-radius: var(--radius-sm);
  padding: var(--space-sm);
  background: var(--clr-bg-alt);
  position: relative;
}

.block-item__type-badge {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-xs);
  display: inline-block;
}

.block-item__type-badge--text  { background: var(--clr-accent-lt); color: var(--clr-accent); }
.block-item__type-badge--image { background: #ccfbf1; color: #0d9488; }

.block-item__remove {
  position: absolute;
  top: var(--space-xs);
  right: var(--space-xs);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--clr-text-light);
  line-height: 1;
  padding: 0.2rem;
  border-radius: 50%;
  transition: background var(--transition), color var(--transition);
}
.block-item__remove:hover {
  background: #fee2e2;
  color: #dc2626;
}

.block-add-btns {
  display: flex;
  gap: var(--space-xs);
}

/* ── Links builder ── */
.links-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.link-item {
  display: grid;
  grid-template-columns: 1fr 2fr 130px auto;
  gap: var(--space-xs);
  align-items: center;
}

.link-item__remove {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--clr-text-light);
  font-size: 1rem;
  padding: 0.3rem;
  border-radius: 50%;
  transition: background var(--transition), color var(--transition);
  justify-self: center;
}
.link-item__remove:hover { background: #fee2e2; color: #dc2626; }

/* ── Output panel ── */
.admin-output {
  position: sticky;
  top: calc(var(--navbar-h) + var(--space-md));
}

.output-code {
  background: #0f172a;
  color: #e2e8f0;
  font: 0.8rem/1.7 var(--font-mono);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  overflow: auto;
  max-height: 55vh;
  white-space: pre;
  tab-size: 2;
  border: 1px solid var(--clr-border);
}

.output-actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

/* ── Preview badge ── */
.admin-preview-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.84rem;
}

/* ── Utility: add button ── */
.btn--add {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.82rem;
  padding: 0.4rem 0.9rem;
}

.admin-navbar-label {
  font-size: 0.82rem;
  color: var(--clr-text-light);
  font-weight: 600;
}

.admin-panel__hint {
  font-size: 0.82rem;
  color: var(--clr-text-light);
  margin-bottom: var(--space-md);
}

.admin-panel__hint--sm {
  font-size: 0.82rem;
  color: var(--clr-text-light);
  margin-bottom: var(--space-sm);
}

.admin-guide-list {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  line-height: 2;
  padding-left: 1.2rem;
}

.admin-navbar-label {
  font-size: 0.82rem;
  color: var(--clr-text-light);
  font-weight: 600;
}

.admin-panel__hint {
  font-size: 0.82rem;
  color: var(--clr-text-light);
  margin-bottom: var(--space-md);
}

.admin-panel__hint--sm {
  font-size: 0.82rem;
  color: var(--clr-text-light);
  margin-bottom: var(--space-sm);
}

.admin-guide-list {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  line-height: 2;
  padding-left: 1.2rem;
}

/* ── Toast notification ── */
.admin-toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  background: var(--clr-primary);
  color: #fff;
  padding: 0.7rem 1.3rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.25s, transform 0.25s;
  pointer-events: none;
  z-index: 9999;
}

.admin-toast.show {
  opacity: 1;
  transform: translateY(0);
}


/* ─────────────────────────────────────────────────────────────
   13. RESPONSIVE
   ───────────────────────────────────────────────────────────── */

/* ── Tablet ── */
@media (max-width: 900px) {

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

  .about__academic-card {
    order: -1;
  }

  .academic-card {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    text-align: left;
  }

  .academic-card__icon { margin: 0; }
  .academic-card__inst { justify-content: flex-start; }

  .edu-card--featured {
    grid-column: span 1;
  }
}

/* ── Mobile ── */
@media (max-width: 680px) {

  /* Project detail responsive */
  .project-detail__body {
    grid-template-columns: 1fr;
  }

  .project-detail__sidebar {
    order: -1;
  }

  .project-detail__meta-card {
    position: static;
  }

  /* Admin responsive */
  .admin-layout {
    grid-template-columns: 1fr;
  }

  .admin-output {
    position: static;
  }

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

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

  :root {
    --space-2xl: 4rem;
  }

  /* Hero en columna */
  .hero__content {
    flex-direction: column;
    text-align: center;
    padding-block: var(--space-xl);
  }

  .hero__desc { max-width: 100%; }

  .hero__actions { justify-content: center; }

  .hero__location { justify-content: center; }

  .hero__academic-badge { text-align: center; }

  /* Navbar mobile */
  .navbar__toggle {
    display: flex;
  }

  .navbar__nav {
    position: fixed;
    inset: var(--navbar-h) 0 0 0;
    background: rgba(9, 14, 26, 0.98);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding: var(--space-xl) var(--space-lg);
    gap: var(--space-lg);
    transform: translateX(100%);
    transition: transform var(--transition);
    z-index: 99;
    border-top: 1px solid rgba(255,255,255,.08);
    box-shadow: var(--shadow-lg);
    overflow-y: auto;
  }

  .nav-dropdown {
    width: 100%;
  }

  .nav-dropdown__summary {
    width: 100%;
    justify-content: space-between;
    font-size: 1.1rem;
    color: rgba(255,255,255,.70);
    padding: 0.1rem 0;
  }

  .nav-dropdown__menu {
    position: static;
    min-width: 0;
    margin-top: 0.8rem;
    padding: 0 0 0 1rem;
    background: transparent;
    border: 0;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    display: none;
  }

  .nav-dropdown[open] > .nav-dropdown__menu {
    display: grid;
  }

  .nav-dropdown__menu .nav-link {
    font-size: 0.98rem;
    padding: 0.35rem 0;
  }

  .navbar__admin-link {
    width: 100%;
    max-width: 260px;
    margin-top: var(--space-xs);
    font-size: 0.95rem;
    padding: 0.7rem 1rem;
  }

  .navbar__nav.open {
    transform: translateX(0);
  }

  .nav-link {
    font-size: 1.1rem;
    color: rgba(255,255,255,.70);
  }

  /* Hamburguesa animada — estado abierto */
  .navbar__toggle.open span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  .navbar__toggle.open span:nth-child(2) {
    opacity: 0;
  }
  .navbar__toggle.open span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  /* Timeline */
  .timeline {
    padding-left: 1.5rem;
  }

  /* Cards de contacto */
  .contact-card {
    min-width: 160px;
    padding: var(--space-md) var(--space-lg);
  }
}


/* =============================================================
   14. LOGIN — Página de acceso admin
   ============================================================= */

.login-page {
  min-height: 100vh;
  background: var(--clr-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.login-wrap {
  width: 100%;
  max-width: 420px;
}

.login-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-xl);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: var(--space-lg);
}

.login-brand__logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: 50%;
}

.login-brand__label {
  font-size: 0.85rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.login-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #f8fafc;
  margin: 0 0 0.4rem 0;
}

.login-subtitle {
  font-size: 0.875rem;
  color: #94a3b8;
  margin: 0 0 var(--space-lg) 0;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.login-form .form-label {
  color: #cbd5e1;
}

.login-form .form-input {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
  color: #f1f5f9;
}

.login-form .form-input::placeholder {
  color: #64748b;
}

.login-form .form-input:focus {
  border-color: var(--clr-accent);
  background: rgba(255, 255, 255, 0.08);
}

.login-pw-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.login-pw-wrap .form-input {
  padding-right: 2.8rem;
  flex: 1;
}

.login-pw-toggle {
  position: absolute;
  right: 0.75rem;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  padding: 0.1rem;
  opacity: 0.6;
  transition: opacity 0.15s;
}

.login-pw-toggle:hover {
  opacity: 1;
}

.login-error {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: #fca5a5;
  border-radius: var(--radius-sm);
  padding: 0.65rem 1rem;
  font-size: 0.875rem;
  line-height: 1.5;
}

.login-submit {
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
  margin-top: 0.25rem;
}

.login-footer {
  margin-top: var(--space-md);
  text-align: center;
  font-size: 0.85rem;
}

.login-footer a {
  color: #94a3b8;
  text-decoration: none;
  transition: color 0.15s;
}

.login-footer a:hover {
  color: #f1f5f9;
}


/* ── Recuperación de contraseña — forgot / reset ─────────── */

.login-success {
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.35);
  color: #86efac;
  border-radius: var(--radius-sm);
  padding: 0.65rem 1rem;
  font-size: 0.875rem;
  line-height: 1.5;
}

.login-hint {
  margin: var(--space-md) 0 0 0;
  font-size: 0.78rem;
  line-height: 1.5;
  color: #64748b;
  text-align: center;
}

.login-footer--split {
  display: flex;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* Medidor de fortaleza de contraseña */
.pw-meter {
  height: 4px;
  margin-top: 0.5rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.pw-meter__bar {
  height: 100%;
  width: 0;
  border-radius: 999px;
  transition: width 0.2s ease, background-color 0.2s ease;
}

.pw-meter__bar.is-1 { width: 25%;  background: #ef4444; }
.pw-meter__bar.is-2 { width: 50%;  background: #f59e0b; }
.pw-meter__bar.is-3 { width: 75%;  background: #eab308; }
.pw-meter__bar.is-4 { width: 100%; background: #22c55e; }

.pw-meter__label {
  margin: 0.4rem 0 0 0;
  font-size: 0.75rem;
  color: #64748b;
}

/* La página de reset usa <a> con clase de botón: centrar el texto */
a.login-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}


/* =============================================================
   15. DASHBOARD ADMIN — admin-dashboard.html
   ============================================================= */

/* ── Barra de tabs ── */
.dashboard-tabs-bar {
  background: rgba(9, 14, 26, 0.95);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  position: sticky;
  top: var(--navbar-h);
  z-index: 90;
}

.dashboard-tabs {
  display: flex;
  gap: 0.25rem;
  padding: 0.5rem 0;
}

.dashboard-tab {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  background: rgba(255, 255, 255, 0.06);
  transition: color 0.15s, background 0.15s, border-color 0.15s;
}

.dashboard-tab:hover {
  color: #f1f5f9;
  background: rgba(255, 255, 255, 0.12);
}

.dashboard-tab--active {
  color: #fff;
  background: rgba(79, 70, 229, 0.22);
  border: 1px solid rgba(79, 70, 229, 0.55);
}

/* ── Acciones en navbar ── */
.dashboard-nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: auto;
}

.dashboard-page .admin-navbar-label {
  color: rgba(255, 255, 255, 0.82);
}

.dashboard-page .dashboard-nav-actions .btn--outline,
.dashboard-page .dashboard-nav-actions .btn--ghost {
  color: #f8fafc;
  border-color: rgba(255, 255, 255, 0.22);
}

.dashboard-page .dashboard-nav-actions .btn--outline {
  background: rgba(255, 255, 255, 0.06);
}

.dashboard-page .dashboard-nav-actions .btn--ghost {
  background: transparent;
  color: #e2e8f0;
}

.dashboard-page .dashboard-nav-actions .btn--outline:hover,
.dashboard-page .dashboard-nav-actions .btn--ghost:hover {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  color: #ffffff;
}

.dashboard-user-info {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.45);
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── Contenido principal ── */
.dashboard-main {
  padding-block: var(--space-xl);
}

.dashboard-page .dashboard-main {
  padding-top: var(--space-lg);
}

/* ── Sección (tab contenido) ── */
.dashboard-section__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.dashboard-section__title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--clr-text);
  margin: 0 0 0.25rem 0;
}

.dashboard-section__sub {
  font-size: 0.875rem;
  color: var(--clr-text-light);
  margin: 0;
}

/* ── Form panel ── */
.dashboard-form-panel {
  margin-bottom: var(--space-xl);
}

.dashboard-form-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-md);
}

.form-row--3 {
  grid-template-columns: repeat(3, 1fr);
}

.form-required {
  color: #ef4444;
}

/* ── Image field ── */
.dashboard-image-field {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.dashboard-image-field .form-input {
  flex: 1;
  min-width: 200px;
}

.dashboard-image-sep {
  font-size: 0.8rem;
  color: var(--clr-text-light);
}

.dashboard-upload-btn {
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.dashboard-file-input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}

.dashboard-image-preview {
  margin-top: 0.5rem;
}

.dashboard-image-preview__img {
  max-height: 120px;
  max-width: 240px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--clr-border);
  object-fit: cover;
}

/* ── Tags input dentro del dashboard ── */
.tags-input-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  background: var(--clr-surface);
  cursor: text;
  min-height: 42px;
  transition: border-color 0.15s;
}

.tags-input-wrap:focus-within {
  border-color: var(--clr-accent);
}

.tags-input-field {
  border: none;
  outline: none;
  background: transparent;
  font-size: 0.9rem;
  color: var(--clr-text);
  min-width: 120px;
  flex: 1;
  padding: 0.1rem 0.2rem;
}

/* ── Mono textarea (JSON) ── */
.form-textarea--mono {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.82rem;
  line-height: 1.6;
}

/* ── Toggle (checkbox styled) ── */
.dashboard-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  user-select: none;
}

.dashboard-toggle input[type="checkbox"] {
  display: none;
}

.dashboard-toggle__track {
  width: 42px;
  height: 24px;
  background: var(--clr-border);
  border-radius: 12px;
  position: relative;
  transition: background 0.2s;
  flex-shrink: 0;
}

.dashboard-toggle__track::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s;
  box-shadow: 0 1px 3px rgba(0,0,0,.2);
}

.dashboard-toggle input:checked + .dashboard-toggle__track {
  background: var(--clr-accent);
}

.dashboard-toggle input:checked + .dashboard-toggle__track::after {
  transform: translateX(18px);
}

.dashboard-toggle__label {
  font-size: 0.9rem;
  color: var(--clr-text);
}

/* ── Botón peligroso ── */
.btn--danger {
  background: rgba(239, 68, 68, 0.08);
  color: #dc2626;
  border-color: rgba(239, 68, 68, 0.25);
}

.btn--danger:hover {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.5);
  color: #b91c1c;
}

/* ── Form actions ── */
.dashboard-form-actions {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  padding-top: var(--space-md);
  border-top: 1px solid var(--clr-border);
  margin-top: var(--space-md);
}

/* ── Items list ── */
.dashboard-items-list {
  min-height: 120px;
}

.dashboard-loading,
.dashboard-empty,
.dashboard-error {
  padding: var(--space-xl);
  text-align: center;
  color: var(--clr-text-light);
  font-size: 0.9rem;
}

.dashboard-error {
  color: #dc2626;
  background: rgba(239, 68, 68, 0.06);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(239, 68, 68, 0.15);
}

/* ── Tabla de items ── */
.dashboard-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--clr-border);
}

.dashboard-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.dashboard-table thead th {
  background: var(--clr-bg-alt);
  padding: 0.65rem 0.9rem;
  text-align: left;
  font-weight: 600;
  color: var(--clr-text-muted);
  border-bottom: 1px solid var(--clr-border);
  white-space: nowrap;
}

.dashboard-row:hover {
  background: var(--clr-bg-alt);
}

.dash-td {
  padding: 0.65rem 0.9rem;
  border-bottom: 1px solid var(--clr-border);
  vertical-align: middle;
  color: var(--clr-text);
  max-width: 260px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dash-td--slug code {
  font-size: 0.8rem;
  color: var(--clr-accent);
}

.dash-td--actions {
  display: flex;
  gap: 0.4rem;
  align-items: center;
  flex-wrap: wrap;
  max-width: none;
  white-space: normal;
}

/* ── Badges de estado ── */
.dash-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
}

.dash-badge--published {
  background: rgba(16, 185, 129, 0.1);
  color: #059669;
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.dash-badge--draft {
  background: rgba(107, 114, 128, 0.1);
  color: #6b7280;
  border: 1px solid rgba(107, 114, 128, 0.2);
}

/* ── Toast error variant ── */
.admin-toast--error {
  background: #dc2626 !important;
}

/* ── Responsive dashboard ── */
@media (max-width: 900px) {
  .admin-access__grid {
    grid-template-columns: 1fr;
  }

  .admin-access__card {
    max-width: 100%;
  }

  .form-row--3 {
    grid-template-columns: 1fr 1fr;
  }

  .dashboard-nav-actions {
    gap: 0.4rem;
  }

  .dashboard-user-info {
    display: none;
  }

  .dashboard-section__header {
    flex-direction: column;
  }
}

@media (max-width: 680px) {
  .form-row--3 {
    grid-template-columns: 1fr;
  }

  .dashboard-form-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .dashboard-form-actions .btn {
    width: 100%;
    text-align: center;
  }

  .dash-td--actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .admin-access__card {
    padding: var(--space-lg);
  }

  .admin-access__panel-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .login-card {
    padding: var(--space-lg);
  }
}