/* ===============================
   APP HEADER (MOBILE-FIRST)
================================ */

.app-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #ffffff;
  border-bottom: 1px solid rgba(0,0,0,0.06);
  backdrop-filter: saturate(180%) blur(10px);
}

.header-inner {
  max-width: 480px;
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* LOGO */
.app-logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: #1a1a1a;
  letter-spacing: -0.02em;
  text-decoration: none;
}

/* AÇÕES */
.header-actions {
  display: flex;
  gap: 10px;
}

/* BOTÕES */
.header-btn {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  background: #f3f4f6;
  color: #1a1a1a;
  border: none;
  cursor: pointer;
}

/* FEEDBACK DE TOQUE (APP-LIKE) */
.header-btn:active {
  transform: scale(0.92);
}