/* ==========================================================================
   Reset & base
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, ul, figure { margin: 0; }
ul { padding: 0; list-style: none; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; background: none; border: none; color: inherit; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

/* ---------- Scrollbar (evita la barra blanca por defecto de Windows) ---------- */
html { scrollbar-width: thin; scrollbar-color: rgba(150,160,170,0.4) transparent; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background-color: rgba(150,160,170,0.4);
  border-radius: 999px;
  border: 2px solid transparent;
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover { background-color: rgba(150,160,170,0.65); }

/* ==========================================================================
   Tema (variables)
   ========================================================================== */
:root {
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-heading: 'Poppins', var(--font-sans);
  --accent: #1fd88f;
  --accent-strong: #0f9d6e;
  --accent-2: #7c5cff;
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --container: 1140px;
  --header-h: 76px;
  --shadow: 0 20px 40px -20px rgba(0,0,0,0.35);
  --transition: 0.25s ease;
}

:root[data-theme="dark"] {
  --bg: #0b0f14;
  --bg-elevated: #121821;
  --bg-elevated-2: #1a2230;
  --text: #edf1f5;
  --text-muted: #9aa7b4;
  --border: rgba(255,255,255,0.08);
  --header-bg: rgba(11,15,20,0.75);
  --accent-contrast: #06120d;
}

:root[data-theme="light"] {
  --bg: #f6f8fa;
  --bg-elevated: #ffffff;
  --bg-elevated-2: #eef1f5;
  --text: #12181f;
  --text-muted: #566270;
  --border: rgba(10,15,20,0.09);
  --header-bg: rgba(246,248,250,0.8);
  --accent-contrast: #06120d;
  --shadow: 0 20px 40px -22px rgba(20,30,40,0.18);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition), color var(--transition);
}

h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 700; line-height: 1.2; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-contrast);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  z-index: 999;
}
.skip-link:focus { left: 16px; top: 16px; }

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

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: transparent;
  transition: background var(--transition), border-color var(--transition);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: var(--header-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  white-space: nowrap;
}
.logo span { color: var(--accent); }

.nav {
  display: flex;
  gap: 28px;
}
.nav-backdrop { display: none; }
.nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 6px 0;
  transition: color var(--transition);
}
.nav a:hover, .nav a.is-active { color: var(--text); }
.nav a.is-active::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.icon-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  color: var(--text);
  transition: background var(--transition), transform var(--transition);
}
.icon-btn:hover { background: var(--bg-elevated-2); }
.icon-btn svg { width: 20px; height: 20px; flex-shrink: 0; }

/* ---------- Selector de idioma (bandera redonda) ---------- */
.lang-toggle {
  width: 40px;
  height: 40px;
  padding: 0;
  flex-shrink: 0;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition), box-shadow var(--transition);
}
.lang-toggle:hover { transform: translateY(-1px); }
.lang-toggle__flag {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  box-shadow: 0 2px 6px -2px rgba(0,0,0,0.35);
  background: var(--bg-elevated-2);
}
.lang-toggle__flag img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.lang-toggle__fallback {
  display: none;
  width: 100%;
  height: 100%;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  font-weight: 700;
  color: var(--text);
}

/* ---------- Switch de tema (estilo cristal / glass) ---------- */
.theme-switch {
  display: flex;
  align-items: center;
  padding: 0;
  flex-shrink: 0;
}
.theme-switch__track {
  box-sizing: border-box;
  display: flex;
  align-items: center;
  width: 56px;
  height: 32px;
  padding: 5px;
  border-radius: 999px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.18);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.3);
  transition: background var(--transition), border-color var(--transition);
}
:root[data-theme="light"] .theme-switch__track {
  background: rgba(20,25,32,0.06);
  border-color: rgba(10,15,20,0.12);
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.08);
}
.theme-switch__thumb {
  box-sizing: border-box;
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: linear-gradient(150deg, #ffffff, #d9e0e7);
  box-shadow: 0 1px 3px rgba(0,0,0,0.25), inset 0 0 0 1px rgba(255,255,255,0.7);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.35s ease;
}
:root[data-theme="dark"] .theme-switch__thumb {
  transform: translateX(26px);
  background: linear-gradient(150deg, #2b3444, #161c26);
  box-shadow: 0 1px 3px rgba(0,0,0,0.4), inset 0 0 0 1px rgba(255,255,255,0.08);
}
.theme-switch__icon {
  grid-area: 1 / 1;
  width: 13px;
  height: 13px;
  transition: opacity 0.25s ease, transform 0.35s ease;
}
.theme-switch__icon--sun { opacity: 1; transform: rotate(0deg) scale(1); }
.theme-switch__icon--moon { opacity: 0; transform: rotate(-70deg) scale(0.4); }
:root[data-theme="dark"] .theme-switch__icon--sun { opacity: 0; transform: rotate(70deg) scale(0.4); }
:root[data-theme="dark"] .theme-switch__icon--moon { opacity: 1; transform: rotate(0deg) scale(1); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
}
.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* ==========================================================================
   Botones
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
  border: 1px solid transparent;
}
.btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: var(--accent-contrast);
  box-shadow: 0 12px 24px -10px rgba(31,216,143,0.5);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 16px 30px -10px rgba(31,216,143,0.6); }
.btn--outline {
  border-color: var(--border);
  color: var(--text);
  background: var(--bg-elevated);
}
.btn--outline:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

/* ==========================================================================
   Utilidades
   ========================================================================== */
.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}
.section-title {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  margin-bottom: 12px;
}
.section-subtitle {
  color: var(--text-muted);
  max-width: 620px;
  font-size: 1.02rem;
  margin-bottom: 40px;
}
.section { padding: 100px 0; }
.section--alt { background: var(--bg-elevated); }

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: flex;
  align-items: center;
  padding: 60px 0 100px;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 600px;
  background: radial-gradient(closest-side, rgba(31,216,143,0.18), transparent 70%);
  pointer-events: none;
  z-index: -1;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero__role {
  font-family: var(--font-heading);
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  color: var(--accent);
  font-weight: 600;
  margin: 6px 0 18px;
}

.hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 3.6rem);
  letter-spacing: -0.02em;
}

.hero__tagline {
  color: var(--text-muted);
  font-size: 1.08rem;
  max-width: 540px;
  margin-bottom: 32px;
}

.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; }

.hero__photo { display: flex; justify-content: center; }
.hero__photo-ring {
  width: min(270px, 60vw);
  aspect-ratio: 1;
  border-radius: 50%;
  padding: 10px;
  background: conic-gradient(from 180deg, var(--accent), var(--accent-2), var(--accent));
}
.hero__photo-ring img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  border: 6px solid var(--bg);
}

.scroll-hint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.scroll-hint::after {
  content: '';
  width: 1px;
  height: 28px;
  background: linear-gradient(var(--text-muted), transparent);
  animation: scrollHint 1.8s infinite;
}
@keyframes scrollHint {
  0% { opacity: 0; transform: translateY(-6px); }
  50% { opacity: 1; }
  100% { opacity: 0; transform: translateY(10px); }
}

/* ==========================================================================
   Sobre mí
   ========================================================================== */
.about__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  margin-bottom: 64px;
}
.about__text p { color: var(--text-muted); margin-bottom: 16px; font-size: 1.02rem; }

.about__facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-content: start;
}
.about__facts .fact:last-child { grid-column: 1 / -1; }
.fact__value--stacked { display: flex; flex-direction: column; gap: 2px; }
.fact {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.fact__label { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--accent); font-weight: 700; }
.fact__value { font-size: 0.95rem; font-weight: 500; }

.about__columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.about__column-title { font-size: 1.2rem; margin-bottom: 24px; }

.timeline { display: flex; flex-direction: column; gap: 28px; position: relative; }
.timeline-item { display: flex; gap: 16px; position: relative; }
.timeline-item__dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: 7px;
  flex-shrink: 0;
  box-shadow: 0 0 0 4px rgba(31,216,143,0.15);
}
.timeline-item:not(:last-child)::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 22px;
  bottom: -28px;
  width: 1px;
  background: var(--border);
}
.timeline-item__content { flex: 1; }
.timeline-item__content h4 { font-size: 1.02rem; }
.timeline-item__sub { color: var(--accent); font-size: 0.88rem; font-weight: 600; margin: 4px 0 0; }
.timeline-item__date { display: block; font-size: 0.82rem; color: var(--text-muted); margin: 2px 0 10px; }
.timeline-item__points { display: flex; flex-direction: column; gap: 6px; }
.timeline-item__points li {
  color: var(--text-muted);
  font-size: 0.92rem;
  padding-left: 16px;
  position: relative;
}
.timeline-item__points li::before {
  content: '';
  position: absolute;
  left: 0; top: 9px;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--text-muted);
}
.timeline-item__tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.timeline-item__tags span {
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--bg-elevated-2);
  color: var(--text-muted);
  font-weight: 600;
}
.timeline-item__link {
  display: inline-block;
  margin-top: 10px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent);
}

/* ==========================================================================
   Habilidades
   ========================================================================== */
.skills-grid { display: flex; flex-direction: column; gap: 40px; }
.skill-group__title { font-size: 1.05rem; margin-bottom: 18px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; font-size: 0.85rem; font-weight: 700; }
.skill-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
}
.skill-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.skill-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: var(--shadow);
}
.skill-icon {
  width: 28px; height: 28px;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.skill-icon img { width: 100%; height: 100%; object-fit: contain; }
.skill-icon--generic { color: var(--accent); }
.skill-icon--generic svg { width: 26px; height: 26px; }
.skill-icon--brand svg { width: 28px; height: 28px; border-radius: 6px; }
.skill-card__label { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.skill-card__name { font-weight: 600; font-size: 0.92rem; line-height: 1.3; white-space: normal; overflow-wrap: break-word; }
.skill-card__level { font-size: 0.76rem; color: var(--text-muted); }

/* ==========================================================================
   Proyectos
   ========================================================================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 900px) {
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .projects-grid { grid-template-columns: 1fr; }
}
.project-card.is-hidden { display: none; }
.projects-more { display: flex; justify-content: center; margin-top: 36px; }
.project-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}
.project-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.project-card__image { aspect-ratio: 16/10; overflow: hidden; }
.project-card__image img { width: 100%; height: 100%; object-fit: cover; }
.project-card__body { padding: 22px; }
.project-card__body h3 { font-size: 1.15rem; margin-bottom: 8px; }
.project-card__body p { color: var(--text-muted); font-size: 0.94rem; margin-bottom: 14px; }
.ai-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(124,92,255,0.12);
  border: 1px solid rgba(124,92,255,0.35);
  color: var(--accent-2);
  font-size: 0.75rem;
  font-weight: 700;
  margin: 6px 0 10px;
}
.ai-badge svg { width: 13px; height: 13px; flex-shrink: 0; }
.project-card__tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.project-card__tags span {
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--bg-elevated-2);
  color: var(--text-muted);
  font-weight: 600;
}
.project-card__palette { display: flex; gap: 6px; margin-bottom: 14px; }
.project-card__palette span {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.35);
  box-shadow: 0 1px 3px rgba(0,0,0,0.25);
}
.project-card__links { display: flex; gap: 18px; }
.project-card__links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--accent);
}
.project-card__links svg { width: 15px; height: 15px; flex-shrink: 0; }

/* ==========================================================================
   Empty state (proyectos / proyectos personales)
   ========================================================================== */
.empty-state {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
  padding: 60px 24px;
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
  color: var(--text-muted);
}
.empty-state svg { width: 42px; height: 42px; color: var(--accent); }
.empty-state h3 { color: var(--text); font-size: 1.1rem; }
.empty-state p { font-size: 0.94rem; max-width: 340px; }

/* ==========================================================================
   Contacto
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}
.contact-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  transition: transform var(--transition), border-color var(--transition);
}
.contact-card:hover { transform: translateY(-3px); border-color: var(--accent); }
.contact-card svg { width: 26px; height: 26px; color: var(--accent); flex-shrink: 0; }
.contact-card__icon { width: 26px; height: 26px; flex-shrink: 0; object-fit: contain; }
.contact-card__label { display: block; font-size: 0.78rem; text-transform: uppercase; color: var(--text-muted); font-weight: 700; letter-spacing: 0.04em; }
.contact-card__value { display: block; font-weight: 600; font-size: 0.95rem; margin-top: 2px; word-break: break-word; }
.contact-cta { display: flex; justify-content: center; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { border-top: 1px solid var(--border); padding: 36px 0; background: var(--bg-elevated); }
.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.site-footer p { color: var(--text-muted); font-size: 0.88rem; }
.site-footer__socials { display: flex; gap: 12px; }
.site-footer__socials a {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border);
  transition: border-color var(--transition), color var(--transition);
}
.site-footer__socials a:hover { border-color: var(--accent); color: var(--accent); }
.site-footer__socials svg { width: 18px; height: 18px; }

/* ==========================================================================
   Back to top
   ========================================================================== */
.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  z-index: 90;
  box-shadow: var(--shadow);
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top svg { width: 18px; height: 18px; }

body.no-scroll { overflow: hidden; }

/* ==========================================================================
   Popup de proyecto (glass)
   ========================================================================== */
.project-modal {
  position: fixed;
  inset: 0;
  z-index: 210;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}
.project-modal.is-open { opacity: 1; visibility: visible; }
.project-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4,6,9,0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.project-modal__panel {
  position: relative;
  width: 100%;
  max-width: 720px;
  max-height: 88vh;
  border-radius: 32px;
  overflow: hidden;
  background: rgba(255,255,255,0.09);
  border: 1px solid rgba(255,255,255,0.25);
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  box-shadow: 0 30px 80px -20px rgba(0,0,0,0.6), inset 0 1px 0 rgba(255,255,255,0.25);
  transform: scale(0.94) translateY(10px);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
:root[data-theme="light"] .project-modal__panel {
  background: rgba(255,255,255,0.6);
  border-color: rgba(255,255,255,0.7);
  box-shadow: 0 30px 80px -24px rgba(20,30,40,0.35), inset 0 1px 0 rgba(255,255,255,0.6);
}
.project-modal.is-open .project-modal__panel { transform: scale(1) translateY(0); }
.project-modal__scroll { max-height: 88vh; overflow-y: auto; }
.project-modal__close {
  position: absolute;
  top: 18px; right: 18px;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(20,25,32,0.35);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(8px);
  z-index: 2;
}
.project-modal__close svg { width: 18px; height: 18px; }
.project-modal__cover { aspect-ratio: 16/9; overflow: hidden; }
.project-modal__cover img { width: 100%; height: 100%; object-fit: cover; }
.project-modal__body { padding: 26px 28px 30px; }
.project-modal__body h3 { font-size: 1.4rem; margin-bottom: 12px; }
.project-modal__body p { color: var(--text-muted); font-size: 0.98rem; margin-bottom: 20px; }
.project-modal__tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.project-modal__tags span {
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.1);
  border: 1px solid var(--border);
  color: var(--text);
  font-weight: 600;
}
.project-modal__section { margin-bottom: 22px; }
.project-modal__section-title {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 10px;
}
.project-modal__features { display: flex; flex-direction: column; gap: 8px; }
.project-modal__features li {
  position: relative;
  padding-left: 20px;
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--text);
}
.project-modal__features li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}
.project-modal__techstack { display: flex; flex-direction: column; gap: 12px; }
.project-modal__tech-label { display: block; font-size: 0.8rem; font-weight: 700; color: var(--text); margin-bottom: 6px; }
.project-modal__tech-items { display: flex; flex-wrap: wrap; gap: 6px; }
.project-modal__tech-items span {
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--bg-elevated-2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-weight: 600;
}
.project-modal__palette { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 22px; }
.project-modal__palette span {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.4);
  box-shadow: 0 2px 6px rgba(0,0,0,0.3);
  cursor: default;
}
.project-modal__gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.project-modal__gallery-grid--mobile { grid-template-columns: repeat(4, 1fr); }
.gallery-thumb {
  padding: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}
.project-modal__gallery-grid--mobile .gallery-thumb { aspect-ratio: 9 / 16; }
.gallery-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.gallery-thumb:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.project-modal__links { display: flex; gap: 12px; flex-wrap: wrap; }
.project-modal__links a { gap: 8px; }
.project-modal__links svg { width: 16px; height: 16px; flex-shrink: 0; }

@media (max-width: 640px) {
  .project-modal__panel { max-width: 100%; border-radius: 24px; }
  .project-modal__body { padding: 22px 18px 26px; }
  .project-modal__gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .project-modal__gallery-grid--mobile { grid-template-columns: repeat(3, 1fr); }
}

/* ==========================================================================
   Visor de imágenes (a partir de las cuadrículas del popup de proyecto)
   ========================================================================== */
.image-viewer {
  position: fixed;
  inset: 0;
  z-index: 220;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 60px 20px;
  background: rgba(4,6,9,0.92);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}
.image-viewer.is-open { opacity: 1; visibility: visible; }
.image-viewer figure { max-width: 720px; width: 100%; }
.image-viewer img { width: 100%; max-height: 76vh; object-fit: contain; border-radius: var(--radius); }
.image-viewer figcaption { color: rgba(255,255,255,0.75); text-align: center; margin-top: 14px; font-size: 0.85rem; }
.image-viewer__close {
  position: absolute;
  top: 20px; right: 20px;
  width: 42px; height: 42px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
}
.image-viewer__close svg { width: 20px; height: 20px; }
.image-viewer__nav {
  flex-shrink: 0;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
}
.image-viewer__nav svg { width: 20px; height: 20px; }
@media (max-width: 640px) {
  .image-viewer { padding: 70px 8px; gap: 4px; }
  .image-viewer__nav { width: 38px; height: 38px; }
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1024px) {
  .about__grid { grid-template-columns: 1fr; }
  .about__facts { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; text-align: center; }
  .hero__text { order: 2; }
  .hero__photo { order: 1; }
  .hero__tagline { margin-left: auto; margin-right: auto; }
  .hero__cta { justify-content: center; }
  .about__columns { grid-template-columns: 1fr; gap: 56px; }
}

@media (max-width: 900px) {
  .nav {
    position: fixed;
    top: calc(var(--header-h) + 10px);
    left: 14px;
    right: 14px;
    bottom: auto;
    max-height: calc(100vh - var(--header-h) - 26px);
    overflow-y: auto;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 26px;
    padding: 34px 24px;
    border-radius: 30px;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.28);
    backdrop-filter: blur(30px) saturate(200%);
    -webkit-backdrop-filter: blur(30px) saturate(200%);
    box-shadow: 0 30px 70px -18px rgba(0,0,0,0.55), inset 0 1px 0 rgba(255,255,255,0.3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-14px) scale(0.97);
    transition: opacity 0.3s ease, transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), visibility 0.3s ease;
    z-index: 99;
  }
  :root[data-theme="light"] .nav {
    background: rgba(255,255,255,0.6);
    border-color: rgba(10,15,20,0.14);
    box-shadow: 0 30px 70px -22px rgba(20,30,40,0.3), inset 0 1px 0 rgba(255,255,255,0.7);
  }
  .nav.is-open { opacity: 1; visibility: visible; transform: translateY(0) scale(1); }
  .nav a { font-size: 1.2rem; }

  .nav-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(4,6,9,0.45);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 98;
  }
  .nav-backdrop.is-open { opacity: 1; visibility: visible; }

  .nav-toggle { display: flex; }

  .section { padding: 72px 0; }
  .hero { padding-top: 40px; }
}

@media (max-width: 480px) {
  .container { padding: 0 18px; }
  .about__facts { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .hero__photo-ring { width: 58vw; }
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }