/* ==========================================================
   NBS Automatic — App UI Styles
   Dashboard, alerts, search — same design system as landing
   v1.0.0 | 2026-07-30
   ========================================================== */

/* ----------------------------------------------------------
   APP SHELL
   ---------------------------------------------------------- */
.app-body { background: var(--surface); min-height: 100vh; }

/* App nav extends shared .nav with dark always-on background */
.nav--app { background: var(--night); }

/* Official NBS logo (2026-08-25): reemplaza el texto ".nav__logo-mark" —
   "align-self" en vez de tocar "align-items" en ".nav__logo" (compartida
   con design-system-demo.html, que sigue con las dos etiquetas de texto y
   no debe verse afectada). Subido a 54px (pulido de header, mismo día):
   dentro de la franja 52-56px pedida y con margen de sobra en la barra
   fija de 64px. */
.nav__logo-img { height: 54px; width: 54px; flex-shrink: 0; display: block;
  align-self: center; }
.nav__logo { gap: 12px; }
/* ".nav__logo-text" sustituye a ".nav__logo-sub" en app.html/account.html
   (design-system-demo.html sigue usando .nav__logo-mark + .nav__logo-sub,
   sin tocar): "NBS Automatic" completo, con la misma tipografía de
   display (Fraunces, --font-d) que ya usa el resto del sistema para el
   wordmark, en vez del tratamiento de etiqueta secundaria en mayúsculas
   que hacía parecer "AUTOMATIC" desconectado del isotipo. */
.nav__logo-text { font-family: var(--font-d); font-size: 1.125rem;
  font-weight: 500; color: var(--white); letter-spacing: -.005em;
  line-height: 1; }

/* B4.2.1 · el hero ("+ Nueva alerta") pasa a ser el único CTA dominante;
   en el nav se demota a navegación discreta —mismo trato que "Mis
   viajes"— para dejar de competir en peso visual. Sigue el mismo enlace
   funcional, sólo cambia el tratamiento. */
.nav--app .nav__cta {
  background: transparent;
  color: rgba(255,255,255,.7);
  height: auto;
  padding: 0;
  border-radius: 0;
  font-weight: 450;
}
.nav--app .nav__cta:hover { background: transparent; color: #fff; }

/* ----------------------------------------------------------
   B4.1.1 · MOBILE NAV — scoped to .nav--app only (app.css sólo lo
   carga app.html): la landing pública y B3 conservan su nav actual
   sin tocar. A <=480px el nav pasa a logo + botón de menú; el mismo
   bloque de enlaces (incluida Cuenta) se despliega en columna.
   ---------------------------------------------------------- */
.nav--app .nav__menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: transparent;
  border: 1.5px solid rgba(255,255,255,.35);
  border-radius: 8px;
  color: #fff;
  cursor: pointer;
}
.nav--app .nav__menu-btn:hover { border-color: #fff; }
@media (max-width: 480px) {
  .nav--app .nav__menu-btn { display: inline-flex; }
  .nav--app .nav__links {
    display: none;
  }
  .nav--app .nav__links.is-open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--night);
    padding: 14px 20px 20px;
    box-shadow: 0 16px 28px -12px rgba(0,0,0,.45);
  }
  .nav--app .nav__links.is-open .nav__link {
    padding: 10px 2px;
    border-bottom: 1px solid rgba(255,255,255,.08);
  }
  .nav--app .nav__links.is-open .nav__cta {
    justify-content: flex-start;
    width: 100%;
    padding: 10px 2px;
    border-bottom: 1px solid rgba(255,255,255,.08);
  }
  .nav--app .nav__links.is-open .ob-header__menu--dark { width: 100%; }
  .nav--app .nav__links.is-open .ob-header__menu--dark button#btn-cuenta {
    width: 100%;
    text-align: left;
    margin-top: 4px;
  }
  /* El desplegable de Cuenta, dentro del panel ya oscuro, deja de ser una
     tarjeta flotante blanca: se aplana en la misma columna. */
  .nav--app .nav__links.is-open .ob-header__dropdown {
    position: static;
    box-shadow: none;
    border: none;
    background: transparent;
    margin-top: 6px;
    padding: 0;
    min-width: 0;
  }
  .nav--app .nav__links.is-open .ob-header__dropdown a,
  .nav--app .nav__links.is-open .ob-header__dropdown button {
    color: rgba(255,255,255,.85);
    padding: 9px 2px;
  }
  .nav--app .nav__links.is-open .ob-header__dropdown a:hover,
  .nav--app .nav__links.is-open .ob-header__dropdown button:hover {
    background: rgba(255,255,255,.06);
  }
  .nav--app .nav__links.is-open .ob-header__dropdown-email {
    color: rgba(255,255,255,.5);
    border-bottom-color: rgba(255,255,255,.12);
  }
}

/* ----------------------------------------------------------
   APP HEADER BAR (below nav)
   ---------------------------------------------------------- */
.app-header {
  background: var(--white);
  border-bottom: var(--border-1);
  padding: 80px 0 0; /* push below fixed nav */
}
.app-header__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 24px 24px 0;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.app-header__title {
  font-family: var(--font-d);
  font-size: 1.75rem;
  font-weight: 300;
  color: var(--ink);
  line-height: 1.2;
}
.app-header__sub { font-size: .875rem; color: var(--muted); margin-top: 3px; }
.app-header__tabs {
  display: flex;
  gap: 0;
  border-bottom: none;
  margin-top: 16px;
}
.app-tab {
  padding: 12px 20px;
  font-size: .875rem;
  font-weight: 450;
  color: var(--muted);
  border-bottom: 2px solid transparent;
  transition: color var(--t-base), border-color var(--t-base);
  cursor: pointer;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
}
.app-tab.active { color: var(--navy); border-bottom-color: var(--navy); font-weight: 500; }
.app-tab:hover:not(.active) { color: var(--ink); }

/* ----------------------------------------------------------
   MAIN CONTENT AREA
   ---------------------------------------------------------- */
.app-main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 36px 24px 80px;
}

/* ----------------------------------------------------------
   CREATE ALERT FORM (in-page)
   ---------------------------------------------------------- */
.create-form {
  background: var(--white);
  border: var(--border-1);
  border-radius: var(--r-lg);
  padding: 28px 28px 24px;
  margin-bottom: 36px;
  box-shadow: var(--shadow-sm);
}
.create-form__title { font-size: 1rem; font-weight: 600; color: var(--ink); margin-bottom: 18px; }
.create-form__grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr auto;
  gap: 12px;
  align-items: flex-end;
}
@media (max-width: 900px) {
  .create-form__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .create-form__grid { grid-template-columns: 1fr; }
}

/* ----------------------------------------------------------
   ALERTS GRID
   ---------------------------------------------------------- */
.alerts-section-title {
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
}
.alerts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}
@media (max-width: 480px) { .alerts-grid { grid-template-columns: 1fr; } }

/* ----------------------------------------------------------
   ALERT CARD
   ---------------------------------------------------------- */
.alert-card {
  background: var(--white);
  border: var(--border-1);
  border-radius: var(--r-lg);
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: box-shadow var(--t-base), border-color var(--t-base);
  cursor: pointer;
}
.alert-card:hover {
  box-shadow: var(--shadow-md);
  border-color: #D1D9E2;
}
.alert-card__header { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.alert-card__route {
  font-family: var(--font-d);
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--ink);
  line-height: 1.2;
}
.alert-card__route[href] {
  text-decoration: none;
  display: inline-block;
}
.alert-card__route[href]:hover { text-decoration: underline; }
.alert-card__route[href]:focus-visible,
.alert-card__action:focus-visible {
  outline: 2px solid var(--navy);
  outline-offset: 2px;
}
.alert-card__dates { font-size: .8125rem; color: var(--muted); margin-top: 3px; }

/* Price display */
.alert-card__price { display: flex; align-items: baseline; gap: 12px; }
.alert-card__price-current {
  font-family: var(--font-d);
  font-size: 2rem;
  font-weight: 300;
  color: var(--ink);
  line-height: 1;
}
.alert-card__price-current.down  { color: var(--success); }
.alert-card__price-current.up    { color: var(--error); }
.alert-card__price-delta {
  font-size: .875rem;
  font-weight: 500;
  color: var(--success);
}
.alert-card__price-delta.up { color: var(--error); }

/* Mini sparkline */
.alert-card__sparkline { width: 100%; height: 36px; }

/* Meta row */
.alert-card__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 12px;
  border-top: var(--border-1);
  flex-wrap: wrap;
}
.alert-card__meta-item { font-size: .8125rem; color: var(--muted); display: flex; align-items: center; gap: 5px; }
.alert-card__meta-item svg { width: 13px; height: 13px; }

/* Actions */
.alert-card__actions { display: flex; gap: 8px; margin-top: 2px; }
.alert-card__action {
  flex: 1;
  height: 36px;
  padding: 0 14px;
  font-size: .8125rem;
  font-weight: 500;
  border-radius: var(--r-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  border: var(--border-1);
  background: none;
  color: var(--muted);
  transition: border-color var(--t-base), color var(--t-base), background var(--t-base);
}
.alert-card__action:hover { border-color: var(--navy); color: var(--navy); }
.alert-card__action[href] { text-decoration: none; }
.alert-card__action--primary {
  background: var(--amber);
  color: var(--white);
  border-color: transparent;
}
.alert-card__action--primary:hover { background: var(--amber-h); color: var(--white); border-color: transparent; }
.alert-card__action svg { width: 13px; height: 13px; }

/* ----------------------------------------------------------
   EMPTY STATE
   ---------------------------------------------------------- */
.empty-state {
  text-align: center;
  padding: 64px 24px;
  background: var(--white);
  border: var(--border-1);
  border-radius: var(--r-lg);
}
.empty-state__icon {
  width: 56px;
  height: 56px;
  background: var(--surface);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  color: var(--subtle);
}
.empty-state__icon svg { width: 26px; height: 26px; }
.empty-state__title { font-family: var(--font-d); font-size: 1.25rem; font-weight: 400; color: var(--ink); margin-bottom: 8px; }
.empty-state__sub { font-size: .9375rem; color: var(--muted); max-width: 360px; margin: 0 auto 24px; line-height: 1.6; }

/* ----------------------------------------------------------
   STATUS INDICATOR (pulsing dot)
   ---------------------------------------------------------- */
.status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  flex-shrink: 0;
}
.status-dot--amber { background: var(--amber); }
.status-dot--error { background: var(--error); }
.status-dot--muted { background: var(--subtle); }

/* ----------------------------------------------------------
   ALERT DETAIL PANEL
   ---------------------------------------------------------- */
.detail-panel {
  background: var(--white);
  border: var(--border-1);
  border-radius: var(--r-lg);
  overflow: hidden;
  margin-bottom: 24px;
}
.detail-panel__header {
  padding: 20px 24px;
  border-bottom: var(--border-1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.detail-panel__title { font-size: 1rem; font-weight: 600; color: var(--ink); }
.detail-panel__body { padding: 24px; }

/* ----------------------------------------------------------
   RESPONSIVE TWEAKS
   ---------------------------------------------------------- */
@media (max-width: 640px) {
  .app-main { padding: 24px 16px 60px; }
  .create-form { padding: 20px 18px 18px; }
}

/* ----------------------------------------------------------
   B4.1.1 · FOOTER MÓVIL — compactación scoped a `.app-body .footer`:
   `.footer` es compartido con la landing (design-system.css), así que
   sólo se acorta dentro de la app, sin tocar la landing pública.
   ---------------------------------------------------------- */
@media (max-width: 480px) {
  .app-body .footer { padding: 22px 0 14px; }
  /* B4.2.1 · Navegación y Legal lado a lado (2 columnas) en vez de
     apiladas: misma información, la mitad de alto. La marca ocupa el
     ancho completo arriba. */
  .app-body .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px 20px;
    margin-bottom: 14px;
  }
  .app-body .footer__grid > div:first-child { grid-column: 1 / -1; }
  .app-body .footer__brand-desc { display: none; }
  .app-body .footer__brand-name { margin-bottom: 2px; }
  .app-body .footer__brand-email { margin-top: 4px; }
  .app-body .footer__col-title { margin-bottom: 6px; }
  .app-body .footer__links { gap: 8px; }
  .app-body .footer__bottom { padding-top: 10px; }
}

/* ----------------------------------------------------------
   B4.1.1 · ZERO STATE MÓVIL — menos aire en 390/320 ahora que ya no
   comparte pantalla con el formulario completo.
   ---------------------------------------------------------- */
@media (max-width: 480px) {
  .ob-empty { margin: 20px auto; padding: 32px 20px; }
}