/* ============================================================================
   SHELL — navegación (sep-2026). Cargada por SiteShell, después de site2.css.
   Escritorio: barra superior + menú lateral grande con fichas de color (colapsable a íconos).
   Móvil:      barra superior mínima + barra inferior de pestañas; el menú lateral
               pasa a ser un cajón que abre "Más".
   Todo el color sale de los tokens h2-*: no hay valores fijos aquí.
   ============================================================================ */
:root {
  --nv-top: 60px;
  --nv-w: 292px;
  --nv-wc: 88px;
  --nv-tabs: 62px;
  --nv-ease: cubic-bezier(.2, .75, .2, 1);
  --nv-hov: color-mix(in srgb, var(--h2-bone) 9%, transparent);
  --nv-act: color-mix(in srgb, var(--h2-bone) 15%, transparent);
}
body { padding-top: var(--nv-top); }
body.nv-open { overflow: hidden; }

/* ── barra superior ───────────────────────────────────────────────────── */
.nv-top {
  position: fixed; z-index: 300; inset: 0 0 auto 0; height: var(--nv-top);
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 560px) minmax(0, 1fr); align-items: center; gap: 16px;
  padding: 0 clamp(12px, 2vw, 24px);
  background: color-mix(in srgb, var(--h2-ink) 90%, transparent);
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--h2-line);
}
.nv-top-l { display: flex; align-items: center; gap: 6px; min-width: 0; }
.nv-top-r { display: flex; align-items: center; justify-content: flex-end; gap: 8px; min-width: 0; }
.nv-brand { display: flex; align-items: center; padding: 6px 8px; border-radius: 10px; }
.nv-brand svg { height: 30px; width: auto; display: block; }
.nv-burger, .nv-icon {
  width: 42px; height: 42px; flex: none; display: grid; place-items: center; border: 0; border-radius: 12px;
  background: transparent; color: var(--h2-bone); font-size: 1.05rem; cursor: pointer; transition: background .15s;
}
.nv-burger:hover, .nv-icon:hover { background: var(--nv-hov); }

.nv-search { position: relative; display: block; }
.nv-search > i { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); color: var(--h2-mute); font-size: .85rem; pointer-events: none; }
.nv-search input {
  width: 100%; height: 42px; padding: 0 42px 0 42px; border-radius: 999px;
  border: 1px solid transparent; background: var(--nv-hov); color: var(--h2-bone);
  font: 500 .95rem var(--h2-body); transition: border-color .15s, background .15s;
}
.nv-search input::placeholder { color: var(--h2-mute); }
.nv-search input:focus { outline: none; border-color: var(--h2-cyan); background: var(--nv-act); }
.nv-search input::-webkit-search-cancel-button { display: none; }
.nv-search button { position: absolute; right: 6px; top: 50%; transform: translateY(-50%); width: 30px; height: 30px; border: 0; border-radius: 50%; background: transparent; color: var(--h2-mute); cursor: pointer; }
.nv-search button:hover { color: var(--h2-bone); background: var(--nv-hov); }

.nv-login, .nv-signup {
  display: inline-flex; align-items: center; height: 40px; padding: 0 18px; border-radius: 999px;
  font: 700 .9rem/1 var(--h2-body); text-decoration: none; white-space: nowrap; transition: background .15s, box-shadow .15s, transform .15s;
}
.nv-login { color: var(--h2-bone); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--h2-bone) 30%, transparent); }
.nv-login:hover { background: var(--nv-hov); }
.nv-signup { background: var(--h2-cyan); color: var(--h2-ink); }
.nv-signup:hover { box-shadow: 0 0 0 4px color-mix(in srgb, var(--h2-cyan) 35%, transparent); }
.nv-me { display: inline-flex; align-items: center; gap: 10px; height: 44px; padding: 0 14px 0 4px; border-radius: 999px; color: var(--h2-bone); text-decoration: none; font: 700 .9rem/1 var(--h2-body); transition: background .15s; }
.nv-me:hover { background: var(--nv-hov); }
.nv-me .nv-ava { width: 36px; height: 36px; }

/* ── avatar (compartido) ──────────────────────────────────────────────── */
.nv-ava {
  position: relative; flex: none; width: 36px; height: 36px; border-radius: 50%; overflow: hidden;
  display: grid; place-items: center; background: var(--c, var(--h2-raise));
  font: 800 .95rem var(--h2-display); color: #fff;
}
.nv-ava img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* ── menú lateral ─────────────────────────────────────────────────────── */
.nv-scrim { display: none; }
.nv-side {
  position: fixed; z-index: 250; top: var(--nv-top); left: 0; bottom: 0; width: var(--nv-w);
  padding: 14px 14px 20px; display: flex; flex-direction: column; gap: 4px;
  overflow-x: hidden; overflow-y: auto; overscroll-behavior: contain;
  scrollbar-width: thin; scrollbar-color: var(--h2-line) transparent;
  background:
    radial-gradient(120% 60% at 0% 0%, color-mix(in srgb, var(--h2-cyan) 9%, transparent), transparent 60%),
    var(--h2-ink);
  border-right: 1px solid var(--h2-line);
  transition: width .24s var(--nv-ease), transform .28s var(--nv-ease);
}
.nv-side nav { display: grid; gap: 4px; }
.nv-side-hd, .nv-side-auth { display: none; }
.nv-h { margin: 4px 12px 4px; color: var(--h2-mute); font: 700 .8rem/1 var(--h2-body); letter-spacing: .04em; }
.nv-more-nav { margin-top: 10px; }

.nv-item {
  --tc: var(--h2-bone);
  display: flex; align-items: center; gap: 14px; height: 54px; padding: 0 12px 0 10px; border-radius: 18px;
  color: var(--h2-bone); text-decoration: none; font: 700 1.08rem/1 var(--h2-body); letter-spacing: -.005em; white-space: nowrap;
  transition: background .18s, transform .18s;
}
.nv-tile {
  flex: none; width: 40px; height: 40px; display: grid; place-items: center; border-radius: 13px; font-size: 1.05rem;
  color: var(--tc); background: color-mix(in srgb, var(--tc) 16%, transparent);
  transition: background .18s, color .18s, transform .18s;
}
.nv-item:hover { background: var(--nv-hov); }
.nv-item:hover .nv-tile { transform: translateY(-2px) rotate(-4deg); background: color-mix(in srgb, var(--tc) 26%, transparent); }
.nv-item.is-on { background: var(--nv-act); }
.nv-item.is-on .nv-tile { background: var(--tc); color: var(--h2-ink); box-shadow: 0 6px 18px -6px var(--tc); }
.nv-lbl { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; }
.nv-badge { display: inline-flex; align-items: center; gap: 6px; padding: 5px 9px; border-radius: 999px; background: var(--h2-live); color: #fff; font: 700 .78rem/1 var(--h2-body); font-variant-numeric: tabular-nums; }
.nv-badge[hidden] { display: none; }
.nv-badge i { width: 6px; height: 6px; border-radius: 50%; background: #fff; animation: nv-pulse 1.6s ease-in-out infinite; }
@keyframes nv-pulse { 50% { opacity: .35; } }

.nv-sm { height: 44px; font: 600 .98rem/1 var(--h2-body); opacity: .92; }
.nv-sm .nv-tile { width: 34px; height: 34px; border-radius: 11px; font-size: .9rem; --tc: var(--h2-mute); }

.nv-promo {
  margin-top: auto; padding: 16px; display: grid; gap: 6px; border-radius: 22px;
  background:
    radial-gradient(90% 90% at 100% 0%, color-mix(in srgb, var(--h2-cyan) 26%, transparent), transparent 70%),
    color-mix(in srgb, var(--h2-bone) 7%, transparent);
  box-shadow: inset 0 0 0 1px var(--h2-line);
}
.nv-promo b { font: 800 1.15rem/1.15 var(--h2-display); letter-spacing: -.02em; }
.nv-promo span { color: var(--h2-mute); font: 500 .86rem/1.4 var(--h2-body); }
.nv-promo .nv-signup { justify-content: center; margin-top: 4px; height: 42px; }

/* ── barra inferior (móvil) ───────────────────────────────────────────── */
.nv-tabs { display: none; }

/* ═════════ ESCRITORIO ═════════ */
@media (min-width: 1000px) {
  body .page-right { margin-left: var(--nv-w); transition: margin-left .24s var(--nv-ease); }
  html.nv-min .nv-side { width: var(--nv-wc); }
  html.nv-min body .page-right { margin-left: var(--nv-wc); }
  html.nv-min .nv-side { padding-left: 10px; padding-right: 10px; }
  html.nv-min .nv-item { justify-content: center; padding: 0; height: 56px; }
  html.nv-min .nv-lbl, html.nv-min .nv-h, html.nv-min .nv-promo { display: none; }
  html.nv-min .nv-badge { position: absolute; top: 2px; right: 6px; padding: 3px 6px; font-size: .68rem; }
  html.nv-min .nv-badge i { display: none; }
  html.nv-min .nv-item { position: relative; }
  html.nv-min .nv-more-nav { margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--h2-line); }
  .nv-search-open { display: none; }
}

/* ═════════ MÓVIL / TABLET ═════════ */
@media (max-width: 999px) {
  body { padding-bottom: calc(var(--nv-tabs) + env(safe-area-inset-bottom)); }
  .nv-top { grid-template-columns: auto minmax(0, 1fr) auto; gap: 8px; }
  .nv-burger, .nv-signup { display: none; }
  .nv-search { display: none; }
  .nv-top.is-search .nv-search { display: block; position: absolute; z-index: 2; left: 8px; right: 8px; top: 9px; }
  .nv-top.is-search .nv-search input { background: var(--h2-ink); border-color: var(--h2-cyan); }
  .nv-me .nv-me-n { display: none; }
  .nv-me { padding: 0 4px; }

  .nv-side { top: 0; z-index: 400; width: min(86vw, 330px); padding-top: 8px; transform: translateX(-102%); box-shadow: 0 0 60px rgba(var(--crl-ink-rgb), .8); }
  body.nv-open .nv-side { transform: none; }
  .nv-scrim { display: block; position: fixed; inset: 0; z-index: 390; background: color-mix(in srgb, var(--h2-ink) 70%, transparent); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); opacity: 0; pointer-events: none; transition: opacity .25s; }
  body.nv-open .nv-scrim { opacity: 1; pointer-events: auto; }
  .nv-side-hd { display: flex; align-items: center; justify-content: space-between; padding: 0 4px 8px 8px; }
  .nv-side-auth { display: grid; gap: 8px; padding: 4px 10px 12px; }
  .nv-side-auth .nv-login, .nv-side-auth .nv-signup { display: inline-flex; justify-content: center; height: 46px; }
  .nv-side-auth .nv-me { justify-content: flex-start; padding: 0 4px; height: 52px; }
  .nv-side-auth .nv-me .nv-me-n { display: inline; }

  .nv-tabs {
    position: fixed; z-index: 280; left: 0; right: 0; bottom: 0;
    height: calc(var(--nv-tabs) + env(safe-area-inset-bottom)); padding-bottom: env(safe-area-inset-bottom);
    display: grid; grid-template-columns: repeat(5, 1fr);
    background: color-mix(in srgb, var(--h2-ink) 94%, transparent);
    -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px); border-top: 1px solid var(--h2-line);
  }
  .nv-tab {
    position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px;
    border: 0; background: none; color: var(--h2-mute); text-decoration: none; font: 600 .7rem/1 var(--h2-body); cursor: pointer;
    -webkit-tap-highlight-color: transparent;
  }
  .nv-tab i { font-size: 1.2rem; transition: transform .15s; }
  .nv-tab:active i { transform: scale(.88); }
  .nv-tab.is-on { color: var(--h2-bone); }
  .nv-tab.is-on i { color: var(--h2-cyan); }
  .nv-tab.is-on::before { content: ''; position: absolute; top: 0; width: 30px; height: 3px; border-radius: 0 0 4px 4px; background: var(--h2-cyan); }
}

a:focus-visible, button:focus-visible { outline: 3px solid var(--h2-cyan); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  .nv-side, .nv-scrim, body .page-right, .nv-tab i { transition: none; }
}