/* ══════════════════════════════════════════════════════════════════
   COMPONENTES — nav, cursor, preloader, marquee, modal, toast, etc.
   ══════════════════════════════════════════════════════════════════ */

/* ---------- Barra de progreso de scroll ---------- */
.progress-bar {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 100%;
  background: var(--grad);
  transform-origin: 0 50%;
  transform: scaleX(0);
  z-index: var(--z-progress);
  pointer-events: none;
}

/* ---------- Navegación ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-nav);
  transition: transform 0.4s var(--ease), background 0.3s, border-color 0.3s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(5, 8, 15, 0.82);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}
.nav.hidden { transform: translateY(-100%); }

.nav__inner {
  max-width: var(--container);
  margin-inline: auto;
  padding: 0.9rem var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav__logo {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--txt-1);
  letter-spacing: 0.02em;
  transition: opacity 0.2s;
}
.nav__logo:hover { opacity: 0.85; }
.nav__logo-bracket { color: var(--txt-3); }
.nav__logo-accent { color: var(--mint); }

.nav__links ul { display: flex; gap: 1.9rem; }
.nav__links a {
  font-size: 0.92rem;
  color: var(--txt-2);
  position: relative;
  padding-block: 0.3rem;
  transition: color 0.25s;
}
.nav__links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1.5px;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.3s var(--ease);
}
.nav__links a:hover, .nav__links a.active { color: var(--txt-1); }
.nav__links a:hover::after, .nav__links a.active::after { transform: scaleX(1); }

.nav__actions { display: flex; align-items: center; gap: 0.9rem; }

.nav__icon-btn {
  display: inline-flex;
  padding: 0.45rem;
  border-radius: var(--r-sm);
  color: var(--txt-2);
  transition: color 0.25s, background 0.25s, transform 0.25s;
}
.nav__icon-btn:hover { color: var(--mint); background: rgba(0, 229, 160, 0.08); transform: translateY(-1px); }
.nav__icon-btn svg { width: 19px; height: 19px; }

/* Selector de idioma ES / EN */
.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.4rem 0.7rem;
  font-size: 0.8rem;
  border: 1px solid var(--line);
  border-radius: var(--r-full);
  background: rgba(14, 22, 38, 0.5);
  transition: border-color 0.25s;
}
.lang-toggle:hover { border-color: var(--line-strong); }
.lang-toggle__sep { color: var(--txt-3); }
.lang-toggle__opt { color: var(--txt-3); transition: color 0.2s; }
.lang-toggle__opt.active { color: var(--mint); font-weight: 700; }

/* Burger (solo móvil) */
.nav__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  padding: 8px;
  border-radius: var(--r-sm);
}
.nav__burger span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--txt-1);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.2s;
}
.nav__burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger.open span:nth-child(2) { opacity: 0; }
.nav__burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Overlay del menú móvil */
.nav__menu {
  position: fixed;
  inset: 0;
  background: rgba(5, 8, 15, 0.96);
  backdrop-filter: blur(18px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2.75rem;
  /* deja libre la barra superior y permite scroll si no cabe (móvil apaisado) */
  padding: 5.5rem 1.5rem 2.5rem;
  padding-bottom: calc(2.5rem + env(safe-area-inset-bottom, 0px));
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s var(--ease), visibility 0.35s;
  /* justo debajo de la barra del nav: el logo y el burger quedan encima
     (el overlay es hijo de <body>, no del header — ver index.html) */
  z-index: calc(var(--z-nav) - 1);
}
.nav__menu.open { opacity: 1; visibility: visible; }

/* margin auto arriba/abajo: centrado vertical cuando cabe,
   scroll normal desde arriba cuando no cabe */
.nav__menu ul {
  display: flex;
  flex-direction: column;
  gap: clamp(1rem, 3vh, 1.5rem);
  text-align: center;
  margin-top: auto;
}
.nav__menu a {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease), color 0.25s;
}
.nav__menu.open a { opacity: 1; transform: none; }
.nav__menu a:hover { color: var(--mint); }

.nav__menu ul a {
  font-size: clamp(1.45rem, 6vw, 1.8rem);
  font-weight: 600;
  color: var(--txt-1);
  display: inline-flex;
  align-items: baseline;
  gap: 0.8rem;
}
.nav__menu ul a:hover, .nav__menu ul a.active { color: var(--mint); }
.nav__menu-num { font-size: 0.85rem; color: var(--mint); }

.nav__menu-foot {
  display: flex;
  gap: 1.6rem;
  font-size: 0.85rem;
  color: var(--txt-3);
  margin-bottom: auto;
}
.nav__menu-foot a:hover { color: var(--mint); }

/* Retardo escalonado de los enlaces del menú */
.nav__menu.open li:nth-child(1) a { transition-delay: 0.05s; }
.nav__menu.open li:nth-child(2) a { transition-delay: 0.10s; }
.nav__menu.open li:nth-child(3) a { transition-delay: 0.15s; }
.nav__menu.open li:nth-child(4) a { transition-delay: 0.20s; }
.nav__menu.open li:nth-child(5) a { transition-delay: 0.25s; }
.nav__menu.open li:nth-child(6) a { transition-delay: 0.30s; }
.nav__menu.open .nav__menu-foot a { transition-delay: 0.35s; }

/* ---------- Cursor personalizado (desktop) ---------- */
.cursor-dot, .cursor-ring {
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  border-radius: 50%;
  z-index: var(--z-cursor);
  opacity: 0;
}
.cursor-dot {
  width: 6px; height: 6px;
  background: var(--mint);
  transform: translate(-50%, -50%);
}
.cursor-ring {
  width: 34px; height: 34px;
  border: 1.5px solid rgba(0, 229, 160, 0.45);
  transform: translate(-50%, -50%);
  transition: width 0.25s var(--ease), height 0.25s var(--ease), border-color 0.25s, background 0.25s;
}
html.custom-cursor .cursor-dot, html.custom-cursor .cursor-ring { opacity: 1; }
html.custom-cursor.cursor-hidden .cursor-dot, html.custom-cursor.cursor-hidden .cursor-ring { opacity: 0; }
html.custom-cursor .cursor-ring.hovering {
  width: 52px; height: 52px;
  border-color: rgba(0, 229, 160, 0.9);
  background: rgba(0, 229, 160, 0.07);
}
/* Con cursor propio activo, el nativo se atenúa (no se oculta del todo
   para no perder usabilidad en elementos no controlados) */
html.custom-cursor, html.custom-cursor a, html.custom-cursor button { cursor: none; }

/* Con un modal <dialog> abierto se vuelve al cursor nativo: la top layer
   se pinta por encima del punto/anillo (ningún z-index compite ahí) y el
   cursor:none heredado dejaría al usuario "sin ratón" dentro del modal.
   :has() reacciona al atributo [open] en el mismo frame; cursor.js hace
   además lo propio desde JS (suspend/resume) para navegadores sin :has. */
html.custom-cursor:has(dialog[open]) { cursor: auto; }
html.custom-cursor:has(dialog[open]) a,
html.custom-cursor:has(dialog[open]) button { cursor: pointer; }
html.custom-cursor:has(dialog[open]) .cursor-dot,
html.custom-cursor:has(dialog[open]) .cursor-ring { opacity: 0; }

/* ---------- Preloader estilo terminal ---------- */
.preloader {
  position: fixed;
  inset: 0;
  background: var(--bg-0);
  z-index: var(--z-preloader);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s var(--ease), visibility 0.5s;
}
.preloader.done { opacity: 0; visibility: hidden; pointer-events: none; }
.preloader__box { font-family: var(--font-mono); font-size: 0.95rem; color: var(--txt-2); }
.preloader__box .t-ok { color: var(--mint); }
.preloader__line { opacity: 0; animation: pre-line 0.3s forwards; }
.preloader__line:nth-child(2) { animation-delay: 0.28s; }
.preloader__line:nth-child(3) { animation-delay: 0.55s; }
@keyframes pre-line { to { opacity: 1; } }

/* ---------- Marquee de tecnologías ---------- */
.marquee {
  overflow: hidden;
  border-block: 1px solid var(--line);
  padding-block: 1.05rem;
  background: rgba(10, 16, 28, 0.4);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee__track {
  display: flex;
  align-items: center;
  width: max-content;
  animation: marquee 34s linear infinite;
  font-size: 0.95rem;
  color: var(--txt-2);
  letter-spacing: 0.06em;
  will-change: transform;
}
/* scrollfx.js agrupa el contenido en dos .marquee__group idénticos;
   el espaciado va como margin en cada span (y no como gap del track)
   para que translateX(-50%) caiga EXACTO al inicio de la 2ª copia. */
.marquee__group { display: flex; align-items: center; }
.marquee__track span { white-space: nowrap; margin-right: 2.6rem; }
.marquee__star { color: var(--mint); font-size: 0.7rem; }
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Botón volver arriba ---------- */
.back-to-top {
  position: fixed;
  bottom: 1.6rem;
  left: 1.6rem;
  width: 44px; height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-sm);
  background: rgba(10, 16, 28, 0.8);
  backdrop-filter: blur(8px);
  color: var(--txt-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.3s, visibility 0.3s, transform 0.3s var(--ease), color 0.25s, border-color 0.25s;
  z-index: var(--z-chat);
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: none; }
.back-to-top:hover { color: var(--mint); border-color: rgba(0, 229, 160, 0.5); }
.back-to-top svg { width: 18px; height: 18px; }

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translate(-50%, 20px);
  padding: 0.7rem 1.3rem;
  background: var(--panel-solid);
  border: 1px solid rgba(0, 229, 160, 0.4);
  border-radius: var(--r-full);
  color: var(--txt-1);
  font-size: 0.85rem;
  box-shadow: var(--shadow-1);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s;
  z-index: var(--z-toast);
  pointer-events: none;
}
.toast.show { opacity: 1; visibility: visible; transform: translate(-50%, 0); }

/* ---------- Modal de proyecto (<dialog>) ---------- */
.pdialog {
  width: min(680px, calc(100vw - 2rem));
  max-height: min(82vh, 720px);
  background: var(--bg-1);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-md);
  color: var(--txt-2);
  padding: 0;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
  /* centrado nativo del dialog */
  margin: auto;
}
.pdialog::backdrop {
  background: rgba(3, 5, 10, 0.7);
  backdrop-filter: blur(6px);
}
.pdialog[open] { animation: dialog-in 0.3s var(--ease); }
@keyframes dialog-in {
  from { opacity: 0; transform: translateY(18px) scale(0.98); }
  to   { opacity: 1; transform: none; }
}

.pdialog__close {
  position: absolute;
  top: 0.9rem; right: 0.9rem;
  width: 38px; height: 38px;
  display: grid;
  place-items: center;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
  background: rgba(5, 8, 15, 0.6);
  color: var(--txt-2);
  transition: color 0.2s, border-color 0.2s;
  z-index: 2;
}
.pdialog__close:hover { color: var(--mint); border-color: rgba(0, 229, 160, 0.5); }
.pdialog__close svg { width: 17px; height: 17px; }

.pdialog__content { overflow-y: auto; max-height: inherit; }

.pdialog__cover {
  height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 700;
  position: relative;
  overflow: hidden;
}
.pdialog__body { padding: 1.6rem 1.8rem 2rem; }
.pdialog__body h3 { font-size: 1.45rem; margin-bottom: 0.35rem; }
.pdialog__status { margin-bottom: 1rem; font-size: 0.82rem; }
.pdialog__status--online { color: var(--mint); }
.pdialog__status--wip { color: var(--warn); }
.pdialog__desc { margin-bottom: 1.3rem; }
.pdialog__sub {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--mint);
  margin-bottom: 0.6rem;
}
.pdialog__highlights { margin-bottom: 1.3rem; }
.pdialog__highlights li {
  position: relative;
  padding-left: 1.3rem;
  margin-bottom: 0.4rem;
}
.pdialog__highlights li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--mint);
}
.pdialog__chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.5rem; }
.pdialog__links { display: flex; flex-wrap: wrap; gap: 0.8rem; }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--line);
  padding-block: 2.2rem;
  background: rgba(5, 8, 15, 0.6);
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  flex-wrap: wrap;
}
.footer__copy { font-size: 0.88rem; color: var(--txt-3); }
.footer__stack { font-size: 0.75rem; color: var(--txt-3); letter-spacing: 0.05em; }
.footer__links { display: flex; gap: 0.6rem; }
.footer__links a {
  display: inline-flex;
  padding: 0.45rem;
  color: var(--txt-3);
  border-radius: var(--r-sm);
  transition: color 0.25s, transform 0.25s;
}
.footer__links a:hover { color: var(--mint); transform: translateY(-2px); }
.footer__links svg { width: 18px; height: 18px; }

/* ---------- Estado "menú móvil abierto" (body.menu-open, ver nav.js) ----------
   Nada debe flotar por encima del overlay: el chat y "volver arriba"
   viven en z-index superior al nav, así que se ocultan mientras tanto. */
body.menu-open .chat,
body.menu-open .back-to-top,
body.menu-open .progress-bar {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* ---------- Responsive de componentes ---------- */
@media (max-width: 860px) {
  .nav__links { display: none; }
  .nav__burger { display: flex; }
}

/* En escritorio el overlay móvil no existe: aunque quedara abierto al
   redimensionar, nunca tapa la página (nav.js además lo cierra solo) */
@media (min-width: 861px) {
  .nav__menu { display: none; }
}
@media (max-width: 480px) {
  .lang-toggle { padding: 0.35rem 0.55rem; }
  .nav__icon-btn { display: none; } /* GitHub ya está en el menú móvil */
  .back-to-top { bottom: 1.1rem; left: 1.1rem; width: 40px; height: 40px; }
}
