/* ══════════════════════════════════════════════════════════════
   HEADER — components/Header.astro (web) y, en el panel, las páginas del
   cliente. COMPARTIDO: vive en byme-web/src/compartido y el panel tiene una
   copia idéntica en public/assets/compartido (ver README de la carpeta).
   Diseño «B · Luz» (2026-10-01), simplificado ese mismo día a petición del
   user: barra flotante sin borde animado, submenús en blanco con columnas de
   texto y el botón verde de «Calcular presupuesto» de siempre.
   Clases con prefijo bm- (no chocan con Bootstrap) y solo tokens de
   byme-theme.css. Breakpoints de Bootstrap: 576 / 992 / 1200.
   ══════════════════════════════════════════════════════════════ */

:root {
  --bm-text: var(--text-primary);
  --bm-text-2: var(--text-secondary);
  --bm-text-3: var(--text-muted);
  --bm-navy: var(--bs-primary);
  --bm-glass-2: rgba(var(--bs-primary-rgb), .035);
  --bm-stroke: rgba(var(--bs-primary-rgb), .08);
  --bm-stroke-2: rgba(var(--bs-primary-rgb), .14);
  --bm-header-h: 64px;
  --bm-header-top: 16px;
  --bm-logo-h: 44px;
  /* Lo que ocupa el header: el contenido empieza debajo (main), los anclas
     no quedan tapados (scroll-padding) y el índice de los textos legales se
     pega justo por debajo (LegalLayout). */
  --site-header-h: calc(var(--bm-header-h) + 2 * var(--bm-header-top));
}
html { scroll-padding-top: var(--site-header-h); }

@keyframes bm-up { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ── Ámbito y resets ── */
.bm-scope { color: var(--bm-text); -webkit-font-smoothing: antialiased; }
:where(.bm-scope) *, :where(.bm-scope) *::before, :where(.bm-scope) *::after { box-sizing: border-box; }
:where(.bm-scope) a { color: inherit; }
/* Sin :where(): el reboot de Bootstrap (subrayado de los enlaces, márgenes de
   p y h1) pesa más que un selector a cero. */
.bm-scope a { text-decoration: none; }
.bm-scope p, .bm-scope h1 { margin: 0; }
:where(.bm-scope) button { font: inherit; color: inherit; background: none; border: 0; padding: 0; margin: 0; cursor: pointer; }
.bm-scope :focus-visible { outline: 2px solid var(--bm-navy); outline-offset: 2px; border-radius: 8px; }

/* Selector de idioma (components/LangSwitcher.astro): el botón del
   desplegable y la fila de idiomas del menú en el móvil. */
.lang-switcher-btn {
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(0, 0, 0, 0.08);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.78rem;
}
.lang-inline { display: flex; gap: .25rem; }
.lang-inline-item {
    padding: .35rem .7rem;
    border-radius: 999px;
    font-size: .8rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-decoration: none;
}
.lang-inline-item:hover { color: var(--text-primary); background: rgba(var(--bs-primary-rgb), .05); }
.lang-inline-item.active { color: var(--text-primary); background: rgba(var(--bs-primary-rgb), .08); }

/* ══════════ BARRA ══════════ */
.bm-header { position: fixed; top: var(--bm-header-top); left: 0; right: 0; z-index: 1030; max-width: 1216px; margin-inline: auto; padding: 0 16px; }
.bm-header__bar { position: relative; display: flex; align-items: center; gap: 16px; height: var(--bm-header-h); padding: 0 10px 0 18px; border-radius: 18px;
  background: rgba(255, 255, 255, .72); border: 1px solid rgba(255, 255, 255, .8);
  backdrop-filter: blur(20px) saturate(160%); -webkit-backdrop-filter: blur(20px) saturate(160%);
  box-shadow: 0 10px 40px -14px rgba(var(--bs-primary-rgb), .18); }
.bm-header.is-scrolled .bm-header__bar { background: rgba(255, 255, 255, .9); }

.bm-brand { display: flex; align-items: center; flex: none; }
.bm-brand img { display: block; height: var(--bm-logo-h); width: auto; }
.bm-header__lang { flex: none; }
.bm-header__lang .lang-switcher-btn { height: 34px; }

/* Navegación (ordenador) */
.bm-nav { margin-left: auto; }
.bm-nav__list { display: flex; align-items: center; gap: 2px; margin: 0; padding: 0; list-style: none; }
.bm-nav__trigger, .bm-nav__link { display: flex; align-items: center; gap: 5px; padding: 8px 12px; border-radius: 10px; font-size: .9rem; font-weight: 500; line-height: 20px; color: var(--bm-text-2); white-space: nowrap; transition: color .15s, background .15s; }
.bm-nav__trigger:hover, .bm-nav__link:hover, .bm-nav__item.is-open > .bm-nav__trigger { color: var(--byme-green); background: rgba(var(--bs-success-rgb), .07); }
.bm-nav__chev { font-size: .7rem; opacity: .6; transition: transform .2s; }
.bm-nav__item.is-open .bm-nav__chev { transform: rotate(180deg); }
.bm-nav__lang { display: none; }
.bm-header__actions { display: flex; align-items: center; gap: 8px; flex: none; }

/* El botón de presupuesto: el verde de siempre. Se usa también fuera del
   header (la ruta de pasos), así que lleva su propio text-decoration. */
.bm-cta { display: inline-flex; align-items: center; height: 40px; padding: 0 1.1rem; border-radius: 10px; background: var(--byme-green); color: var(--bm-navy) !important; font-size: .88rem; font-weight: 600; white-space: nowrap; text-decoration: none;
  box-shadow: 0 2px 10px rgba(var(--bs-success-rgb), .25); transition: background .15s, box-shadow .15s; }
.bm-cta:hover { background: color-mix(in srgb, var(--byme-green) 88%, var(--bm-navy)); box-shadow: 0 4px 16px rgba(var(--bs-success-rgb), .35); }

/* Hamburguesa (solo < 992 px) */
.bm-burger { display: none; width: 42px; height: 42px; border-radius: 12px; align-items: center; justify-content: center; flex-direction: column; gap: 5px; background: var(--bm-glass-2) !important; }
.bm-burger span { display: block; width: 18px; height: 2px; border-radius: 2px; background: var(--bm-text); transition: transform .25s, opacity .2s; }
.bm-header.is-menu-open .bm-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.bm-header.is-menu-open .bm-burger span:nth-child(2) { opacity: 0; }
.bm-header.is-menu-open .bm-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Submenú (ordenador): columnas de texto en un panel blanco, con el mismo
   borde y sombra que los desplegables de siempre de la web. ── */
.bm-mega { position: absolute; top: calc(100% + 8px); right: 16px; display: none; grid-auto-flow: column; grid-auto-columns: minmax(200px, 240px); gap: 8px 20px; padding: 16px 18px;
  width: max-content; max-width: calc(100% - 32px); background: #fff; border: 1px solid rgba(0, 0, 0, .08); border-radius: 14px; box-shadow: 0 10px 36px rgba(0, 0, 0, .13); }
.bm-nav__item.is-open > .bm-mega { display: grid; animation: bm-up .18s ease-out; }
.bm-mega__col { display: flex; flex-direction: column; gap: 2px; }
.bm-mega__title { margin: 0 0 4px 10px !important; font-size: .7rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--bm-text-3); }
.bm-item { display: flex; gap: 10px; align-items: flex-start; padding: 8px 10px; border-radius: 8px; transition: background .15s; }
.bm-item__ic { font-size: 1rem; line-height: 20px; color: var(--bm-text-3); transition: color .15s; }
.bm-item__t { display: block; font-size: .88rem; font-weight: 600; line-height: 20px; color: var(--bm-text); transition: color .15s; }
.bm-item__d { display: block; font-size: .78rem; line-height: 18px; color: var(--bm-text-3); }
.bm-item:hover { background: rgba(var(--bs-success-rgb), .07); }
.bm-item:hover .bm-item__t, .bm-item:hover .bm-item__ic { color: var(--byme-green); }

/* ══════════ RESPONSIVE ══════════ */
@media (max-width: 1199.98px) {
  .bm-nav__trigger, .bm-nav__link { padding-inline: 9px; }
  .bm-header__bar { gap: 10px; }
}

/* < 992 px: hamburguesa y menú en panel */
@media (max-width: 991.98px) {
  :root { --bm-header-top: 10px; --bm-header-h: 60px; --bm-logo-h: 38px; }
  .bm-header { padding: 0 10px; }
  .bm-header__bar { padding: 0 8px 0 14px; }
  .bm-burger { display: inline-flex; }
  .bm-header__actions { margin-left: auto; }

  .bm-nav { position: absolute; left: 0; right: 0; top: calc(100% + 8px); margin: 0; max-height: calc(100dvh - var(--site-header-h) - 16px); overflow-y: auto; overscroll-behavior: contain;
    padding: 8px; border-radius: 16px; background: #fff; border: 1px solid rgba(0, 0, 0, .08); box-shadow: 0 10px 36px rgba(0, 0, 0, .13);
    opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity .2s, transform .25s, visibility 0s .25s; }
  .bm-header.is-menu-open .bm-nav { opacity: 1; visibility: visible; transform: none; transition: opacity .2s, transform .25s; }
  .bm-nav__list { flex-direction: column; align-items: stretch; gap: 2px; }
  .bm-nav__trigger, .bm-nav__link { width: 100%; justify-content: space-between; padding: 14px; font-size: 1rem; font-weight: 600; color: var(--bm-text); border-radius: 12px; }

  /* Submenú → acordeón */
  .bm-mega { position: static; display: none; grid-auto-flow: row; grid-auto-columns: auto; gap: 10px; padding: 0 4px 10px; width: auto; max-width: none; border: 0; border-radius: 0; box-shadow: none; }
  .bm-nav__item.is-open > .bm-mega { display: grid; animation: none; }
}

/* < 576 px: el idioma pasa al panel. */
@media (max-width: 575.98px) {
  :root { --bm-logo-h: 34px; }
  .bm-header__lang { display: none; }
  .bm-nav__lang { display: block; padding: 10px 14px 4px; border-top: 1px solid var(--bm-stroke); margin-top: 6px; }
  .bm-cta { height: 38px; padding: 0 .85rem; font-size: .82rem; }
}

/* Con el panel del móvil abierto, la página no se mueve debajo. */
html.bm-lock, html.bm-lock body { overflow: hidden !important; }

@media (prefers-reduced-motion: reduce) {
  .bm-scope *, .bm-scope *::before, .bm-scope *::after { animation: none !important; transition-duration: .01ms !important; }
}