/* =============================================================
   PORTAFOLIO PERSONAL — styles.css
   ============================================================= */


/* =============================================================
   1. VARIABLES CSS — PERSONALIZA AQUÍ
   ============================================================= */
:root {
  /* ——— Paleta principal ——— */
  --color-bg:          #0c0c0e;       /* fondo global (oscuro profundo) */
  --color-surface:     #141416;       /* tarjetas / secciones alternas */
  --color-surface-2:   #1a1a1e;       /* bordes y elementos secundarios */
  --color-border:      #2a2a30;       /* color de bordes */

  /* ——— Acento — cambia este único color para cambiar toda la identidad visual ——— */
  --color-accent:      #00e5a0;       /* verde terminal / cibernetico */
  --color-accent-dim:  rgba(0, 229, 160, 0.12);
  --color-accent-glow: rgba(0, 229, 160, 0.25);

  /* ——— Tipografía ——— */
  --color-text:        #e8e8ec;       /* texto principal */
  --color-text-muted:  #7a7a8a;       /* texto secundario */
  --color-text-faint:  #3a3a48;       /* texto muy tenue */

  /* ——— Fuentes ——— */
  --font-display: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;
  --font-mono:    'DM Mono', monospace;
  --font-montserrat: 'Montserrat', sans-serif;

  /* ——— Espaciado y tamaños ——— */
  --radius-sm:    6px;
  --radius-md:    12px;
  --radius-lg:    20px;
  --max-width:    1100px;
  --nav-height:   64px;

  /* ——— Transiciones ——— */
  --ease:         cubic-bezier(0.4, 0, 0.2, 1);
  --duration:     220ms;
}


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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

button, input, textarea, select {
  font: inherit;
}

/* Scrollbar personalizada */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-accent); }


/* =============================================================
   3. UTILIDADES GLOBALES
   ============================================================= */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 24px;
}

/* Texto con acento (usado en hero) */
.highlight {
  color: var(--color-accent);
  font-style: normal;
}

/* Cabecera de sección reutilizable */
.section-header {
  margin-bottom: 48px;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 10px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.15;
}


/* =============================================================
   4. SECCIONES — LAYOUT BASE
   ============================================================= */
.section {
  padding-block: 96px;
}

.section--alt {
  background-color: var(--color-surface);
}


/* =============================================================
   5. BOTONES
   ============================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: all var(--duration) var(--ease);
  white-space: nowrap;
}

.btn--primary {
  background-color: var(--color-accent);
  color: #000;
  border: 2px solid var(--color-accent);
}

.btn--primary:hover {
  background-color: transparent;
  color: var(--color-accent);
  box-shadow: 0 0 24px var(--color-accent-glow);
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-text);
  border: 2px solid var(--color-border);
}

.btn--ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn--full {
  width: 100%;
  justify-content: center;
}


/* =============================================================
   6. NAVEGACIÓN
   ============================================================= */
.nav-wrapper {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background-color: rgba(12, 12, 14, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 24px;
  height: 100%;
}

.nav__logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--color-text);
  letter-spacing: -0.02em;
  transition: color var(--duration) var(--ease);
}

.nav__logo:hover { color: var(--color-accent); }

.nav__logo-dot {
  color: var(--color-accent);
}

.nav__links {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav__links a {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--color-text-muted);
  transition: color var(--duration) var(--ease);
  position: relative;
}

.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--duration) var(--ease);
}

.nav__links a:hover {
  color: var(--color-text);
}

.nav__links a:hover::after {
  width: 100%;
}


/* =============================================================
   7. HERO
   ============================================================= */
.hero {
  position: relative;
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  padding-block: 80px;
}

/* Textura de ruido sutil sobre el fondo */
.hero__noise {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(ellipse 60% 50% at 70% 40%, rgba(0, 229, 160, 0.06) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(0, 229, 160, 0.03) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

.hero__inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 64px;
}

/* Avatar */
.hero__avatar-wrap {
  position: relative;
  flex-shrink: 0;
}

.hero__avatar {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--color-border);
  background: var(--color-surface-2);
}

.hero__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Estado placeholder si no hay foto */
.hero__avatar--placeholder {
  background: var(--color-surface-2);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__avatar--placeholder::after {
  content: '?';
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--color-text-faint);
}

.hero__avatar-ring {
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 1px dashed var(--color-border);
  animation: spin 30s linear infinite;
}

.hero__avatar-ring::after {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--color-accent);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Texto hero */
.hero__text {
  flex: 1;
}

.hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.hero__status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--color-accent);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.6; transform: scale(0.85); }
}

.hero__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.5rem, 7vw, 5rem);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--color-text);
  margin-bottom: 16px;
}

.hero__name-accent {
  color: var(--color-accent);
}

.hero__role {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  font-weight: 400;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.hero__tagline {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  max-width: 540px;
  margin-bottom: 36px;
}

.hero__cta-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero__scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-faint);
  letter-spacing: 0.2em;
  text-transform: lowercase;
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}


/* =============================================================
   8. SOBRE MÍ
   ============================================================= */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}

.about__text p {
  color: var(--color-text-muted);
  margin-bottom: 16px;
  font-size: 1.0625rem;
  line-height: 1.85;
}

.about__text p:last-child { margin-bottom: 0; }

.about__text strong { color: var(--color-text); font-weight: 500; }

.about__text em {
  color: var(--color-accent);
  font-style: normal;
}

.about__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: center;
  transition: border-color var(--duration) var(--ease);
}

.stat-card:hover {
  border-color: var(--color-accent);
}

.stat-card__number {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-card__label {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}


/* =============================================================
   9. HABILIDADES
   ============================================================= */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.skill-group {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: border-color var(--duration) var(--ease);
}

.skill-group:hover {
  border-color: var(--color-accent);
}

.skill-group__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.skill-group__icon {
  font-size: 1.1rem;
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-tag {
  background: var(--color-accent-dim);
  border: 1px solid rgba(0, 229, 160, 0.2);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 4px 10px;
  border-radius: 4px;
  letter-spacing: 0.04em;
  transition: background var(--duration) var(--ease);
}

.skill-tag:hover {
  background: rgba(0, 229, 160, 0.2);
}


/* =============================================================
   10. PROYECTOS
   ============================================================= */
.projects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.project-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color var(--duration) var(--ease), transform var(--duration) var(--ease);
}

.project-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
}

.project-card--featured {
  border-color: rgba(0, 229, 160, 0.3);
  background: linear-gradient(135deg, var(--color-surface) 0%, rgba(0, 229, 160, 0.04) 100%);
}

.project-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.project-card__type {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-accent-dim);
  padding: 3px 10px;
  border-radius: 4px;
}

.project-card__links {
  display: flex;
  gap: 12px;
}

.project-card__link {
  color: var(--color-text-muted);
  transition: color var(--duration) var(--ease);
  display: flex;
}

.project-card__link svg {
  width: 18px;
  height: 18px;
}

.project-card__link:hover { color: var(--color-accent); }

.project-card__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
}

.project-card__desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.75;
  flex: 1;
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}

.project-card__tags span {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--color-text-muted);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  padding: 2px 8px;
  border-radius: 4px;
}


/* =============================================================
   11. TIMELINE (EXPERIENCIA / ESTUDIOS)
   ============================================================= */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding-left: 24px;
  border-left: 1px solid var(--color-border);
  position: relative;
  max-width: 720px;
}

.timeline__item {
  position: relative;
  padding-bottom: 48px;
  padding-left: 32px;
}

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

.timeline__marker {
  position: absolute;
  left: -7px;
  top: 4px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-accent);
  box-shadow: 0 0 10px var(--color-accent-glow);
}

.timeline__item--edu .timeline__marker {
  border-color: var(--color-text-muted);
  box-shadow: none;
}

.timeline__date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 8px;
}

.timeline__item--edu .timeline__date {
  color: var(--color-text-muted);
}

.timeline__role {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.timeline__org {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.timeline__desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.75;
}


/* =============================================================
   12. CERTIFICACIONES
   ============================================================= */
.certs__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.cert-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  display: flex;
  align-items: center;
  gap: 18px;
  transition: border-color var(--duration) var(--ease), transform var(--duration) var(--ease);
}

.cert-card:hover {
  border-color: var(--color-accent);
  transform: translateX(4px);
}

.cert-card__badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--color-accent);
  background: var(--color-accent-dim);
  border: 1px solid rgba(0, 229, 160, 0.2);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  min-width: 52px;
  text-align: center;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}

.cert-card__info h4 {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 2px;
}

.cert-card__info p {
  font-size: 0.78rem;
  color: var(--color-text-muted);
}


/* =============================================================
   13. LINKS / REDES SOCIALES
   ============================================================= */
.links__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
}

.link-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  transition: border-color var(--duration) var(--ease),
              background var(--duration) var(--ease),
              transform var(--duration) var(--ease);
  cursor: pointer;
}

.link-card:hover {
  transform: translateY(-3px);
}

.link-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  transition: background var(--duration) var(--ease);
}

.link-card__icon svg {
  width: 20px;
  height: 20px;
}

.link-card__label {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  display: block;
  line-height: 1.2;
}

.link-card__sub {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  display: block;
  margin-top: 2px;
}

/* Colores individuales por red */
.link-card--github:hover  { border-color: #6e5494; background: rgba(110,84,148,.08); }
.link-card--github .link-card__icon { background: rgba(110,84,148,.15); color: #b39ddb; }

.link-card--linkedin:hover { border-color: #0a66c2; background: rgba(10,102,194,.08); }
.link-card--linkedin .link-card__icon { background: rgba(10,102,194,.15); color: #5b9bd5; }

.link-card--x:hover  { border-color: #e7e7e7; background: rgba(231,231,231,.06); }
.link-card--x .link-card__icon { background: rgba(231,231,231,.1); color: #e7e7e7; }

.link-card--instagram:hover { border-color: #e1306c; background: rgba(225,48,108,.08); }
.link-card--instagram .link-card__icon { background: rgba(225,48,108,.15); color: #f48fb1; }

.link-card--tiktok:hover { border-color: #69c9d0; background: rgba(105,201,208,.08); }
.link-card--tiktok .link-card__icon { background: rgba(105,201,208,.15); color: #69c9d0; }

.link-card--email:hover { border-color: var(--color-accent); background: var(--color-accent-dim); }
.link-card--email .link-card__icon { background: var(--color-accent-dim); color: var(--color-accent); }

.link-card--cv:hover { border-color: #ffd166; background: rgba(255,209,102,.06); }
.link-card--cv .link-card__icon { background: rgba(255,209,102,.12); color: #ffd166; }

.link-card--blog:hover { border-color: #ef8354; background: rgba(239,131,84,.08); }
.link-card--blog .link-card__icon { background: rgba(239,131,84,.15); color: #ef8354; }

.link-card--custom:hover { border-color: #a855f7; background: rgba(168,85,247,.08); }
.link-card--custom .link-card__icon { background: rgba(168,85,247,.15); color: #a855f7; }


/* =============================================================
   14. FORMULARIO DE CONTACTO
   ============================================================= */
.contact__wrapper {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 64px;
  align-items: start;
}

.contact__intro {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 32px;
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact__details li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.contact__details svg {
  color: var(--color-accent);
  flex-shrink: 0;
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.form-group input,
.form-group textarea {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--color-text);
  font-size: 0.9rem;
  transition: border-color var(--duration) var(--ease),
              box-shadow var(--duration) var(--ease);
  outline: none;
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-faint);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-dim);
}

.form-group textarea {
  min-height: 120px;
}


/* =============================================================
   15. FOOTER
   ============================================================= */
.footer {
  border-top: 1px solid var(--color-border);
  padding-block: 40px;
  background: var(--color-surface);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer__name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-text);
}

.footer__copy {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  text-align: center;
  line-height: 1.7;
}

.footer__made {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-faint);
}

.footer__back {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  transition: all var(--duration) var(--ease);
}

.footer__back:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}


/* =============================================================
   16. RESPONSIVE — MOBILE FIRST ADJUSTMENTS
   ============================================================= */

/* Tablet landscape */
@media (max-width: 1024px) {
  .about__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .contact__wrapper {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* Tablet portrait */
@media (max-width: 768px) {
  .section {
    padding-block: 64px;
  }

  /* Navegación: ocultar links en mobile */
  .nav__links {
    display: none;
  }

  /* Hero */
  .hero__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 36px;
    text-align: left;
  }

  .hero__avatar {
    width: 120px;
    height: 120px;
  }

  .hero__scroll-hint {
    display: none;
  }

  /* Stats */
  .about__stats {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Projects */
  .projects__grid {
    grid-template-columns: 1fr;
  }

  /* Timeline */
  .timeline {
    padding-left: 16px;
  }

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

  /* Footer */
  .footer__inner {
    flex-direction: column;
    text-align: center;
  }
}

/* Mobile pequeño */
@media (max-width: 480px) {
  .hero__cta-group {
    flex-direction: column;
  }

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

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

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

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

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


/* =============================================================
   17. MENÚ MÓVIL — HAMBURGER (sin JS, usando checkbox)
   ============================================================= */

/* Toggle invisible */
#nav-toggle { display: none; }

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.nav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--duration) var(--ease);
}

@media (max-width: 768px) {
  .nav__hamburger { display: flex; }

  /* Menú desplegable activado con CSS puro */
  #nav-toggle:checked ~ .nav-wrapper .nav__links,
  .nav__links:target {
    display: flex;
  }

  .nav__links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(12, 12, 14, 0.97);
    backdrop-filter: blur(14px);
    flex-direction: column;
    gap: 0;
    padding-block: 16px;
    border-bottom: 1px solid var(--color-border);
  }

  .nav__links a {
    padding: 14px 24px;
    font-size: 1rem;
    width: 100%;
  }

  .nav__links a::after { display: none; }
}