.public-header {
  position: sticky; top: 0; z-index: 40; height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--sp-7);
  background: rgba(6, 9, 10, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.public-header__nav { display: none; align-items: center; gap: var(--sp-7); }
.public-header__nav a { font-size: var(--fs-sm); font-weight: var(--fw-semibold); text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-text-secondary); }
.public-header__nav a:hover, .public-header__nav a.is-active { color: var(--color-text); }
@media (min-width: 860px) { .public-header__nav { display: flex; } }

/* Botón hamburguesa: solo en celular, donde el nav de arriba está oculto. */
.header-menu-btn { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 50%; border: none; background: transparent; color: var(--color-text); padding: 0; flex-shrink: 0; }
.header-menu-btn svg { width: 22px; height: 22px; }
@media (min-width: 860px) { .header-menu-btn { display: none; } }
@media (max-width: 859px) { #headerDesktopRight { display: none; } }

/* Menú desplegable de celular: a pantalla completa, oculto hasta que se le
   agrega la clase is-open. Tiene los mismos links que el nav de escritorio
   más iniciar sesión/unirme (o cuenta si ya hay sesión). */
.mobile-menu {
  position: fixed; inset: 0; z-index: 55; background: var(--color-bg);
  display: flex; flex-direction: column; padding: var(--sp-6) var(--sp-6) var(--sp-8);
  overflow-y: auto; transform: translateY(-12px); opacity: 0; pointer-events: none;
  transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-base) var(--ease-out);
}
.mobile-menu.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
.mobile-menu__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--sp-9); }
.mobile-menu__nav { display: flex; flex-direction: column; gap: var(--sp-6); margin-bottom: var(--sp-8); }
.mobile-menu__nav a { font-family: var(--font-display); font-size: var(--fs-2xl); font-weight: var(--fw-bold); text-transform: uppercase; color: var(--color-text); }
.mobile-menu__nav a.is-active { color: var(--color-accent); }
.mobile-menu__divider { height: 1px; background: var(--color-border); margin-bottom: var(--sp-6); }
.mobile-menu__auth { display: flex; flex-direction: column; gap: var(--sp-2); }
.mobile-menu__profile { display: flex; align-items: center; gap: var(--sp-3); margin-bottom: var(--sp-4); }
.mobile-menu__name { font-weight: var(--fw-semibold); }
.mobile-menu__email { font-size: var(--fs-sm); color: var(--color-text-tertiary); margin-top: 2px; }
.mobile-menu__link { display: flex; align-items: center; gap: var(--sp-3); font-size: var(--fs-md); font-weight: var(--fw-medium); color: var(--color-text-secondary); padding: var(--sp-2) 0; text-align: left; background: none; border: none; }
.mobile-menu__link svg { width: 18px; height: 18px; flex-shrink: 0; }
.mobile-menu__link--danger { color: var(--color-danger); }
@media (min-width: 860px) { .mobile-menu { display: none; } }

.public-main { min-height: 100vh; }
.public-section { max-width: var(--max-content-w); margin: 0 auto; padding: var(--sp-9) var(--sp-7); }
@media (max-width: 640px) { .public-section { padding: var(--sp-8) var(--sp-5); } .public-header { padding: 0 var(--sp-5); } }
.public-footer { text-align: center; padding: var(--sp-7); color: var(--color-text-tertiary); font-size: var(--fs-sm); border-top: 1px solid var(--color-border); }

.auth-screen { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: var(--sp-5); }
.auth-card { width: 100%; max-width: 420px; background: var(--color-white); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); padding: var(--sp-8) var(--sp-7); }
.auth-brand { display: flex; align-items: center; gap: var(--sp-3); margin-bottom: var(--sp-7); }
.auth-brand__mark { width: 40px; height: 40px; border-radius: 12px; background: #fff; display: flex; align-items: center; justify-content: center; color: #fff; font-weight: var(--fw-bold); font-size: var(--fs-md); font-style: italic; overflow: hidden; padding: 3px; }
.auth-brand__mark img { width: 100%; height: 100%; object-fit: contain; }
.auth-brand__name { font-family: var(--font-display); font-weight: var(--fw-bold); font-size: var(--fs-lg); text-transform: uppercase; letter-spacing: 0.01em; }
.auth-quick { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-2); }

.app-shell { display: flex; min-height: 100vh; }
.sidebar { width: var(--sidebar-w); flex-shrink: 0; background: var(--color-white); border-right: 1px solid var(--color-border); display: flex; flex-direction: column; padding: var(--sp-6) var(--sp-4); }
@media (max-width: 900px) { .sidebar { display: none; } }
.app-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.app-header { height: var(--header-h); display: flex; align-items: center; justify-content: space-between; padding: 0 var(--sp-7); border-bottom: 1px solid var(--color-border); position: sticky; top: 0; background: rgba(6, 9, 10, 0.85); backdrop-filter: saturate(180%) blur(12px); z-index: 20; }
.app-header__title { font-family: var(--font-display); font-size: var(--fs-lg); font-weight: var(--fw-bold); text-transform: uppercase; letter-spacing: 0.01em; }
.app-header__nav { display: none; align-items: center; gap: var(--sp-7); }
.app-header__nav a { font-size: var(--fs-sm); font-weight: var(--fw-semibold); text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-text-secondary); padding: 6px 2px; border-bottom: 2px solid transparent; }
.app-header__nav a:hover { color: var(--color-text); }
.app-header__nav a.is-active { color: var(--color-text); border-bottom-color: var(--color-accent); }
.app-header__brand { display: none; font-family: var(--font-display); font-size: var(--fs-md); font-weight: var(--fw-bold); text-transform: uppercase; letter-spacing: 0.01em; }
.shell-member .sidebar { display: none !important; }
.shell-member .app-header__title { display: none; }
.shell-member .app-header__brand { display: block; }
@media (min-width: 901px) { .shell-member .app-header__nav { display: flex; } .shell-member .app-header { padding: 0 var(--sp-9); } }
.app-content { flex: 1; padding: var(--sp-7); max-width: var(--max-content-w); width: 100%; margin: 0 auto; padding-bottom: calc(var(--sp-9) + var(--bottomnav-h)); }
@media (max-width: 640px) { .app-header { padding: 0 var(--sp-5); } }

.bottom-nav { display: none; position: fixed; bottom: 0; left: 0; right: 0; height: var(--bottomnav-h); background: rgba(6, 9, 10, 0.92); backdrop-filter: saturate(180%) blur(16px); border-top: 1px solid var(--color-border); z-index: 30; padding-bottom: env(safe-area-inset-bottom); }
.bottom-nav__inner { height: 100%; display: flex; align-items: center; justify-content: space-around; }
@media (max-width: 900px) { .bottom-nav { display: block; } }
.bottom-nav-link { display: flex; flex-direction: column; align-items: center; gap: 2px; font-size: 10px; color: var(--color-text); }
.bottom-nav-link.is-active { color: var(--color-black); }
.bottom-nav-link svg { width: 20px; height: 20px; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-7); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-5); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-5); }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: var(--sp-5); }
@media (max-width: 900px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }